|
2023 |
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P2305 |
Quantitative Risk Assessment (QRA) for Proposed Residential
Development in SW Edmonton
CLIENTS: Cantiro Charles Communities Ltd. & S.E. Developments
Ltd. DATE: 2023.
DESCRIPTION: A Quantitative Risk Assessment (QRA) for a new
development (the Development) shown in Figure 1 proposed in the
City of Edmonton in the vicinity of the Pembina High Vapour
Pressure Ethane and the ATCO Natural Gas Pipeline (the
Pipelines) shown in Figure 2. The Development addresses are 203B
34th Street SW and 102 17th Street SW. The QRA was done in
accordance with the requirements of the COE regarding risk based
setbacks of development in the vicinity of hazardous facilities,
including evaluation of both Individual Risk Intensity (IRI) and
Individual Specific Risk (ISR) levels and their tabular and
graphic presentation. The Development proposed land use is
planned to be low and high density residential.
|
|
Figure 1 - Development Plan |
Figure 2 - Locations of Pipelines near Development |
|
P2304 |
Quantitative Risk Analysis (QRA) for a Proposed Development
adjacent to Edmonton Cargill Granary
CLIENT: The City of Edmonton, Land Development Planning / Real
Estate Branch. DATE: 2023
DESCRIPTION: Quantitative Risk Assessment (QRA) for a new
residential development proposed in the vicinity of the Cargill
Granary (Figure 1) in Edmonton located at 13020 127 Avenue NW.
The Granary operates year round, 24/7, unloading, storing, and
loading grain shipments to and from trains and trucks as
indicated in Figure 2. The QRA was done in accordance with the
requirements of the COE regarding risk based setbacks of
development in the vicinity of hazardous facilities, including
both Individual Risk Intensity (IRI) and Individual Specific
Risk (ISR) levels determination and tabular and graphic
presentation.
|
|
Figure 1 - The Cargill Edmonton Granary |
Figure 2 - Granary Loading, Unloading, and Storage |
|
2022 |
- 2023
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P202.2
|
Bow River Flood and
Drought Mitigation Project
CLIENT: Confidential DATE: 2019-2023
DESCRIPTION:
Continuation
of previous project support (P202.2).
Options to a new dam were
studied by Bercha. The principal option investigated and
recommended is dredging the reservoir to increase capacity to
the required volume. |
2021 |
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P203.1
|
Port Edward LNG HAZID,
QRA, and Site Safety Optimization
CLIENT: Port Edward LNG DATE: 2020-2021
DESCRIPTION: Port Edward LNG (PELNG) retained the
Bercha Group Limited (BG) to provide a quantitative risk
analysis (QRA), HAZID, and site safety assessment services in
support of the safe development of the PELNG facility and the
permit application to the BC Oil and Gas Commission (BCOGC). The
QRA report and the Site Safety Optimization report were
submitted and accepted by the client in September 2020 and
submitted to the BCOGC for their review. In 2021, BCOGC provided
a list of further requirements which were dealt with by BG to
the client’s satisfaction. Subsequently, the BCOGC provided a
permit to PELNG to proceed to the next phase, detailed
engineering, of the LNG project development. |
2020 |
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P203.1
|
Port
Edward LNG HAZID, QRA, and Site Safety Optimization
CLIENT: Port Edward LNG DATE:
2020
DESCRIPTION: Port Edward LNG (PELNG) retained
the Bercha Group Limited (BG) to provide quantitative risk
analysis (QRA), HAZID, and site safety assessment services in
support of the safe development of the PELNG facility and the
permit application to the BC Oil and Gas Commission (BCOGC). The
QRA report details the methodology used, the definition of
hazard scenarios including conduct of a HAZID assessment, the
frequency and consequence evaluation for the principal credible
hazards defined, and the resultant risk and ways of mitigating
it. The site safety assessment used the QRA results to provide
recommendations on optimizing the safety of workers at the
facility and public in the vicinity,
including
BC hydro workers at an adjacent facility, recreational
individuals in the vicinity on land and on the sound waters, and
occupants of vehicles on the nearby Yellowhead Highway. The
proposed project was at the pre-front end engineering
and design (pre-FEED) stage of its potential development, and
the HAZID, QRA, and Site Safety Optimization Study were used as
part of the PELNG application to the BC Oil and Gas commission.
|
P202.1
\ P1908
|
Bow River Flood and
Drought Mitigation Project
CLIENT: Confidential DATE: 2019-2021
DESCRIPTION: The continuation of P1908. In
January 2020, it appeared the currently preferred option is to
build a new dam roughly 2.5 km downstream of the existing one
and to demolish the existing dam built in 1929. A Conceptual
Assessment (CA) on three options was commissioned to, and
undertaken by Wood Environment & Infrastructure Solutions in
November of 2018, and made available after considerable delays
to Bercha in September 2020. Work in 2020 to date has included
review of the CA resulting in identification of deficiencies
including the neglect of any consideration to the option of
upgrading the existing dam and increasing the reservoir capacity
by a combination of dredging, increasing the dam height, and
installing a lower level outlet, all potentially increasing the
reservoir capacity by approximately 40,000dam3. |
P201.1
|
Heritage
Valley Town Centre QRA
CLIENT: The CIty of Edmonton DATE:
2020
DESCRIPTION: The City of Edmonton (COE), is
planning to develop a multipurpose development, the Heritage
Valley Town Centre (the Development) currently characterized by
a Neighbourhood Area Structure Plan (NASP) shown below in Figure
1. As required by the City, a quantitative risk analysis (QRA)
is required to assure acceptable locations of different land
uses relative to risk sources. The principal risk sources are an
ATCO high pressure natural gas pipeline and a Pembina crude oil
pipeline, passing diagonally NE to SW through the subject
location. The work was done in accordance with the requirements
of the COE regarding individual specific risk (ISR) based
setbacks of development in the vicinity of hazardous operations,
generally as conducted by Bercha in the recent NASP 14 Health
Centre Risk Analysis and other previous COE risk projects for
Individual Specific Risk (ISR) setback evaluation.
Click on map thumbnail to view.
|
2019 |
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P1908 \
P202.1
|
Bow River Flood and
Drought Mitigation Project
CLIENT: Confidential DATE: 2019
DESCRIPTION: The work to end of 2019 has
consisted of assisting landowners (the Residents) in their
dealings with and understanding of the Bow River flood and
drought mitigation studies, with focus on the Ghost Dam
relocation project apparently under serious consideration. The
Residents’ premises are east of the Ghost Dam, on the north side
of the Bow River. One of the currently preferred options is to
build a new dam roughly 2.5 km downstream of the existing one,
and to demolish the existing dam built in 1926. A preliminary
review of available information was conducted in 2019. A
Conceptual Assessment on three options was commissioned to, and
undertaken by Wood Environment & Infrastructure Solutions in
November of 2018. Bercha will review this and advise on
risk and impact aspects of current and potential options in
2020.
Click on
map thumbnail to
view enlarged image. |
P1907
|
PhD Thesis External
Examiner Services
CLIENT: University of Stavanger DATE: 2019-2020
DESCRIPTION: External examiner for a PhD thesis”
including detailed review and critique of the thesis, attendance
at the thesis defence, and final recommendations. A review of
the thesis was carried out, with consideration of the following
main areas:
• Relevance to theme and objectives of the Thesis
• Quality of work
• Originality of work
• Use of or reference to previous work
• Value of contribution to state of art |
P1906 |
Motor Vehicle Accident
Investigation
CLIENT: Confidential DATE: 2019
DESCRIPTION: Bercha in association with the
Highway Institute of Canada, conducted an assessment of the
architecture, as well as vehicular and pedestrian transportation
provisions relevant to the accident. |
P1905 |
ISO 35102 Arctic
Offshore EER Petroleum and Natural Gas Industries – Arctic
operations offshore installation escape, evacuation and rescue -
Country Committee Comments DIS Edit (Related to
P1801)
CLIENT: International Standardization
Organization, ISO DC/67 Technical Committee -London, UK DATE: 2019
DESCRIPTION: Review and assimilation of Country
Committee comments for the Final DIS ISO 35102 of Sections 9,
A.9, and B.1 setting out the requirements and recommended
procedures for on EER Risk Analysis including a detailed
illustration, in Section B.1, of the procedures as exemplified
in its Probabilistic EER Simulator, a comprehensive risk
analysis model for offshore EER for any specific location,
operation, and operator, as well as final drafting of selected
areas in various sections as required by the organizing
committee.
In mid-2019, the working group completed its final draft, and it
was submitted to the ISO country committee. Bercha was largely
responsible for the sections on risk analysis of EER, with a
detailed
description of a recommended procedure in Annex B. The final
approval 1906 voting is was completed on December 16, 2019, and
the final standard is due to be published in early 2020. Click on
cover thumbnail to view enlargement. |
P1904
|
Building Safety
Architecture - Textbook preparation
CLIENT: Bercha Group
DATE: 2020
DESCRIPTION: Dr Bercha's second book, Building Safety
Architecture, was completed in early 2020.
The book is intended to assist architects, engineers, and
contractors to better understand, design, and construct
buildings and other structures to protect occupants from natural
and manmade threats to building safety. Subjects covered
include: a review of historical and current provisions, an
examination of human behaviour in life threatening conditions,
details of contemporary building emergency design provisions,
documentation of current codes and design practices, and
presentation of quantitative methods for evaluating the risk and
reliability of different combinations of emergencies, building
designs, and occupant characteristics. The subject matter is
relatively unique because it is based on a meld of architectural
and structural design and reliability engineering experience of
the author acquired through five decades of practice. |
P1903 |
CN Milton Logistics
Intermodal Hub (related to P1805)
CLIENT: Halton Municipalities DATE: 2019
DESCRIPTION: Canadian National Railways (CN) has
proposed to construct and operate an intermodal (truck to rail)
logistics hub in the town of Milton, generally as depicted below
(image to come). The region of Halton, in which Milton is
located, in 2016 retained the Bercha Group to assist with its
intervention opposing the development on the basis of the
generation of risks and various damages to the town and region.
Bercha has and continues to provide expert risk analytic
services including the review and assessment of CN submissions
to the Canadian Environmental Assessment Panel, review of the
original EIS, and Panel requests for additional information and
CN replies thereto.
In the period from May to July 2019, hearings on the proposed
project were staged by the Canadian Environmental Assessment
Panel, which were actively attended by Dr. Bercha on behalf of
the Halton Municipalities. Extensive evidence on the risks and
impacts of the proposed project was prepared and presented at
the panel sessions in June. The recommendations of the panel are
pending at and expected in early 2020. |
2018 |
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P1805 |
CN Milton Logistics
Intermodal Hub
CLIENT: Halton Municipalities DATE: 2018
DESCRIPTION: Canadian National Railways (CN) has
proposed to construct and operate an intermodal (truck to rail)
logistics hub in the town of Milton, generally as depicted below
(image to come). The region of Halton, in which Milton is
located, in 2016 retained the Bercha Group to assist with its
intervention opposing the development on the basis of the
generation of risks and various damages to the town and region.
Bercha has and continues to provide expert risk analytic
services including the review and assessment of CN submissions
to the Canadian Environmental Assessment Panel, review of the
original EIS, and Panel requests for additional information and
CN replies thereto.
Click on thumbnail
to view image. |
P1803 |
Edmonton Development
Site Quantitative Risk Analysis
CLIENT: City of Edmonton, subcontract to
Associated Engineering Alberta Ltd. DATE: 2018
DESCRIPTION: The work includes the conduct of a
quantitative risk analysis (QRA) of a potential development site
in the City of Edmonton (COE), including future sensitive uses
including a major hospital and health campus, to assess risk
based setbacks of development in the vicinity of hazardous
facilities and operations within and near the development site.
Potential risks to the site are generated from numerous oil and
gas pipelines within and adjacent to the site, a proposed
pipeline and a pipeline interchange facility, and a dangerous
goods (DG) route on Anthony Henday Drive north of the site.
Based on the COE development bylaw 12800 individual risk
intensity (IRI) transects were developed for each of the five
hazardous corridors affecting the site, mitigation measures
including sheltering effects from different hazards (flash and
jet fires) and applied, and transformed to plan views of risk
contours spatially positioned on the potential development plan
for two principal annual risk levels, 1 in 1 million, high
density residential, and 3 in 10 million, for sensitive
facilities such as hospitals. The project is currently ongoing.
|
|
P1802 |
QRA of Development
Adjacent to Natural Gas Pipeline and CN Railway Line
CLIENT: Westbrook Developments Limited DATE: 2018
DESCRIPTION: Westbrook retained the Bercha Group
to conduct a quantitative risk analysis (QRA) in accordance with
the requirements of the City of Regina (COR) regarding risk
based setbacks of development in the vicinity of a proposed
SaskEnergy natural gas pipeline and a CN Railway Branch Line
between Regina and Moose Jaw at the southern extremity of the
proposed development, to ensure that the development complies
with the risk based setback criteria set by the City of Regina.
Following risk mitigation measure assessment to reduce risks,
cumulative risk contours indicating the low and high density
residential development setbacks were established and used as a
guide for the development plan. |
P1801
|
ISO 35102 Arctic
Offshore EER Petroleum and Natural Gas Industries – Arctic
operations offshore installation escape, evacuation and rescue -
Country Committee Comments DIS Edit
CLIENT: International Standardization
Organization, ISO DC/67 Technical Committee -London, UK DATE: 2015-2016,
2018
DESCRIPTION: Review and assimilation of Country
Committee comments for the Final DIS ISO 35102 of Sections 9,
A.9, and B.1 setting out the requirements and recommended
procedures for on EER Risk Analysis including a detailed
illustration, in Section B.1, of the procedures as exemplified
in its Probabilistic EER Simulator, a comprehensive risk
analysis model for offshore EER for any specific location,
operation, and operator, as well as final drafting of selected
areas in various sections as required by the organizing
committee. |
2017 |
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P1705 |
Indoor Air Quality (IAQ)
Safety Assessment of Maui Condominium
CLIENT: Specific units in condominium, Maui,
Hawaii, USA DATE: 2017
DESCRIPTION: The work entailed collection of
indoor air samples, lab analysis for impurities, and risk
assessment, and recommendations for remediation. Hawaii
Inspection Group (HIG) provided a sub- atmospheric pressure
collection canister to Bercha to collect sample air from
separate areas suspected of impure air. Sample canisters were
then returned to HIG and shipped to a NIOSH-approved lab for
analysis using USEPA: Compendium Method TO-15, “Determination of
Volatile Organic Compounds (VOCs) in Air" and analyzed by Gas
Chromatography/Mass Spectrometry (GC/MS). Results were assessed
for occupant safety both chronic and acute, and recommendations
for relief of chronic effects were made. Recommendations
included increase in air changes (depending on unit air volumes)
and air purifier installation. The project continues to be
monitored. |
P1703
|
Milton CN Intermodal Hub
Risk Analysis
CLIENT: Halton Region, Planning and Development DATE: 2017
DESCRIPTION: The CN Town of Milton Logistics Hub
Development EIS and associated appendices were reviewed to
assess the adequacy of information to form a basis of a
quantitative risk analysis (QRA) of public safety during the
construction and operation of the proposed facility. The
information provided in the documents reviewed was found to be
inadequate for input into a QRA. The principal risk sources from
operations are the release of Dangerous Goods (DG) and traffic
accidents from the increase of DG truck traffic in the area, DG
releases can occur as a result of a malfunction or accident
involving train derailment, collision, DG transfer to trucks,
truck accident, and other release events. Risk from the
construction is likely to be restricted to machinery operations
and truck traffic. Qualitative and detailed quantitative
information on all aspects of the operation related to DG’s is
being generated to conduct the public safety QRA, which has been
initiated.
|
P1702
|
ISO 35102 Arctic
Offshore EER Petroleum and Natural Gas Industries – Arctic
operations offshore installation escape, evacuation and rescue -
Detailed CED Edit
CLIENT: International Standardization
Organization, ISO DC/67 Technical Committee - London DATE: 2017
DESCRIPTION: Detailed editing of Sections 9, A.9,
and B.1 setting out the requirements and recommended procedures
for on EER Risk Analysis including a detailed illustration of
the procedures as exemplified in its Probabilistic EER Simulator
a comprehensive risk analysis model for offshore EER, in the DIS
and country Committee reviewed draft. |
2016 |
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P1605
|
Updates to Fault Tree
for Oil Spill Occurrence Estimators - Liberty Development
Project Oil Spill Risk Analysis Subsea Pipeline
CLIENT: BSEE/BOEM DATE: 2015-2016
DESCRIPTION: Project objectives include:
assimilation of North Sea and U.S. OCS oil spill statistics, and
evaluate their applicability; develop the fault trees for
estimating oil spill occurrences from the proposed Project
associated with spills of different size categories; use the
fault tree approach in a Monte Carlo simulation, develop
alternative oil spill indicators and assess their variability,
including effect of variability of both the historical data and
the future development scenario parameters; and evaluate the
variability of alternative oil spill indicators for a similar
development scenario in a non-Arctic location. Following the
general risk analysis in P1508, the subsea double walled (pipe
in pipe) oil production pipeline was analyzed for oil spill
risk. As this had not been done before (anywhere) further
development of fault tree application to this analysis was
carried out, resulting in both a single point variable and
distribution (using Monte Carlo) of spill risk, integrated into
the integrated project spill risk evaluation.
Click on thumbnails to
view enlarged images.
|
|
Pipeline Spill Frequency |
Island
Spill Frequency |
|
P1604
|
ISO 35102 Arctic
Offshore EER Petroleum and Natural Gas Industries – Arctic
operations offshore installation escape, evacuation and rescue -
Initial Draft
CLIENT: International Standardization
Organization, London, UK DATE: 2016
DESCRIPTION: The escape, evacuation and rescue (EER)
system promotes the successful escape from the incident,
subsequent emergency or precautionary evacuation from the
installation and the ultimate rescue of installation personnel.
The EER provisions should be used as part of a continuous
improvement process for managing risks and the safety of
personnel working offshore in Arctic and cold regions. Bercha is
responsible for the preliminary CD drafting and editing of
Sections 9, A.9, and B.1 setting out the requirements and
recommended procedures for on EER Risk Analysis including a
detailed illustration of the procedures as exemplified in its
Probabilistic EER Simulator a comprehensive risk analysis model
for offshore EER.
|
P1603
|
Regina Risk Based
Setbacks
CLIENT: City of Regina DATE: 2015-2016
DESCRIPTION: The City of Regina (City) engaged
Bercha to conduct an investigation of existing documents used in
determining land use requirements in the vicinity of hazardous
facilities such as gas pipelines, dangerous goods (DG) routes,
and chemical and oil and gas plants. This work objective is to
enhance the City’s understanding of methods for doing risk and
hazard assessments and setting risk based setbacks for
development in the vicinity of hazardous installations.
Over 200 risk based threshold documents used worldwide
were assembled and reviewed and of these 90 documents setting
out such thresholds were selected for in depth study. Of the 90,
37 apply generally to all hazard sources. More specific
threshold documents for different hazard sources compiled
included 36 for oil and gas pipelines and facilities, 8 for
railways, 10 for dangerous goods (DG) routes, and 8 for
airports. From a review of the 27 most location-relevant
documents, it was evident that the most rigorous approach to
thresholds is to have a set of risk based criteria which applies
to all risk sources, rather than having ones dedicated to each
of the specific applications. A consistent threshold target for
all applications (ie, railways, pipelines, facilities), whether
individual or collective risk or both, was deemed favourable. A
summary of specific conclusions follows:
1.
Consider the
use of general thresholds applicable to all applications but
only with performance based standards rather than prescriptive
standards.
2.
Consider the 27
most location-relevant items identified as a basis for options
for the City to consider for risk based setbacks. There is a
trade-off between the documentable rigorous realism and ease of
use of the threshold.
3.
Consider the
comparison of individual risk intensity (IRI (MIACC)) and
individual specific risk (ISR (actual risk)) thresholds which
showed considerably higher ISR potential for the MIACC criteria
for certain land uses such as outdoor workers which would be
subjected to unacceptably high risk under the MIACC IRI
criteria. |
P1602
|
Risk Analysis for Urban
Setbacks from Oil and Gas Pipelines in Proposed Subdivision
CLIENT: Harvard Developments, Regina DATE: 2015-2016
DESCRIPTION: Risk based setbacks using both the
MIACC and exposure factored individual risk guidelines were
evaluated for two natural gas and one oil pipeline within the
proposed development location. |
2015 |
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P1508
|
Liberty (Mod 0005) – Updates to Fault Tree for
Oil Spill Occurrence Estimators
CLIENT: BSEE/BOEM DATE: 2015-2016
DESCRIPTION: Project objectives include:
assimilation of North Sea and U.S. OCS oil spill statistics, and
evaluate their applicability; develop the fault trees for
estimating oil spill occurrences from the proposed Project
associated with spills of different size categories; use the
fault tree approach in a Monte Carlo simulation, develop
alternative oil spill indicators and assess their variability,
including effect of variability of both the historical data and
the future development scenario parameters; and evaluate the
variability of alternative oil spill indicators for a similar
development scenario in a non-Arctic location. This work will be
carried out within the context of the Liberty development and
production plan (DPP). |
P1507
|
Integration of Emergency Human Survival
Provisions in Residential and Commercial Building Design
CLIENT: AIR DATE: 2015-2016
DESCRIPTION: Publication of building safety
textbook. Research and data collection on
indoor air quality hazards. |
P1506
|
Orlan EER System Risk Analysis
CLIENT: EXXON MOBIL Development Corp (EMDC) DATE: 2015-2016
DESCRIPTION: Following Bercha review of planned
Orlan-type EER study locations (identified by EMDC), approaches,
and parameters, feedback and guidance on input values and
approach was provided to EMDC. Following assimilation of
operational and environmental conditions for 3 potential
locations of the Orlan platform, current and potential
configurations of the EER system were assembled. Each of the 3
cases for several different accident scenarios including
blowouts, fires, ice, and extreme sea-state were risk analyzed
for EER system reliability.
Specific services included pre-study consultation, including
determination of 6 sets of 6 Orlan environmental conditions
(open water calm, open water Beaufort 8, moderate ice calm,
moderate ice stormy, heavy ice static, heavy ice dynamic), and
an annual average for 3 locations, and conduct of full EER
reliability modeling of 7 accident scenarios using the Bercha
PEERS software Version 10.1, including software documentation
and EER escape, evacuation (4 EER systems), and rescue (3 rescue
modes) and integrated EER reliability result generation. |
P1503
|
Risk of Alternative TMPL Route Options in W
Edmonton
CLIENT: City of Edmonton DATE: 2015
DESCRIPTION: Investigation of TransMountain
Pipeline risks to Edmonton locations. As part of the
investigation, risk contours were developed using Cumulative
Risk Analysis (CRA) methodology. |
P1502
|
ISO 35102 Arctic Offshore Operations EER
CLIENT: ISO DATE: 2015-2016
DESCRIPTION: Development and drafting of ISO
35102 Arctic operations escape, evacuation, and rescue (EER). |
P1501
|
High Arctic EER Study
CLIENT: ExxonMobil Development Company DATE:
2015-2016
DESCRIPTION: ExxonMobil Development Company (EMDC)
is carrying out an evaluation of feasibility and effectiveness
of Evacuation, Escape and Rescue (EER) systems in the high
Arctic to provide recommendations on areas that require further
improvement. Bercha conducted a quantitative study using Event
Tree analysis to calculate the probability of successful
evacuation under various conditions. A new version of Bercha’s
Probabilistic Escape Evacuation and Rescue Simulator (PEERS)
software, which includes fault and event trees, was developed
and used. |
2014 |
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P1410
|
High Arctic EER Study
CLIENT: ExxonMobil Development Company DATE: 2014-2015
DESCRIPTION: ExxonMobil Development Company (EMDC)
was carrying out an evaluation of feasibility and effectiveness
of Evacuation, Escape and Rescue (EER) systems in the high
Arctic to provide recommendations on areas that require further
improvement. Bercha conducted a quantitative study using Event
Tree analysis to calculate the probability of successful
evacuation under various conditions. Bercha’s Probabilistic
Escape Evacuation and Rescue Simulator (PEERS) software, which
includes fault and event trees, shall be redeveloped. |
P1409 |
TransMountain Pipeline Spill Risks
CLIENT: Gowlings LLP DATE: 2014
DESCRIPTION: Review of proposed TransMountain
pipeline spill risks and countermeasures. |
P1408
|
ICETECH 2016 – International Conference and
Exhibition on Performance of Ships and Structures in Ice
conference feasibility
CLIENT: n/a DATE: 2015-2016
DESCRIPTION:
No conference was held in 2016. The
ICETECH conferences focus on the general theme of performance
of ships and structures in ice, covering a wide range of
specialty topics including icebreaking
ships, ice resistant structures, and operations in ice.
Technical papers are presented by experts from around the world.
A small
commercial exhibition
for industry and related organizations is always well attended.
The most recent ICETECH conference
to date was held in 2014, with the sub-theme: looking to the
future in a warming world.
For more details refer to
the website:
www.icetech16.org.
|
P1407 |
Foxtail Grove Subdivision QRA
CLIENT: Stantec-Dundee DATE: 2014
DESCRIPTION:
An earlier
QRA (P1305) of the proposed Foxtail Grove
development and adjoining potentially developable lands was
carried out. A further risk assessment associated with future
rail and highway bypass locations adjacent to the area was
attempted, but appropriate DG data were not available for either
the road or railway. |
P1406 |
Addendum to
Analysis of Risks to Proposed Harbour Landing
West Development from Existing Oil and Gas Pipelines
CLIENT: Stantec Consulting Ltd DATE: 2014
DESCRIPTION: Stantec retained Bercha Group
Limited (Bercha) to conduct a quantitative risk analysis (QRA)
of certain oil and gas pipelines to assess the risks they pose
to the proposed Harbour Landing West development in 2012,
resulting in a comprehensive final report based on the QRA
issued in May 2013. There are two east west pipeline corridors
passing through the proposed development. Corridor 1 is the
southern one, containing six TransCanada Pipelines (TCPL) lines,
and Corridor 2 is the northern one, with two TransGas (TG)
lines. Recently, TCPL has issued notice of the energy east
pipeline project involving the conversion of one of the TCPL
lines, Line 4, from natural gas to crude oil, and Bercha has
been asked to re-assess the risks with this future pipeline
conversion in place. An Addendum report was prepared, giving
details of this risk re-assessment.
|
P1405
|
Development of ISO 18819 Arctic Operations -
Escape, Evacuation and Rescue from Offshore Installations
CLIENT: International Association of Oil and Gas
Producers DATE: 2014-2017
DESCRIPTION:
Assistance with coordinating input from WG2 “task
group” leaders or other WG2 members and prepare drafts of the
standard (CD, DIS, FDIS) and to the extent possible, use ISO
format.
The goal is to develop a new international
standard “Petroleum, petrochemical and natural gas industries.
Arctic operations. Escape, evacuation and rescue” using
expertise from countries with interests and experience from work
in arctic conditions, including the following Arctic specific
aspects:
·
EER in cold climate: health aspects of EER in
extreme arctic conditions;
·
Human performance in life-threatening
conditions-effect of perceptual narrowing and cognitive
dysfunction on EER reliability, training specific aspects
·
Winterization issues to improve EER conditions in
cold climate including,
o
Mechanical provisions for motor performance,
lubricant changes, gas volumes for inflation
o
Enhancement for human performance including slip
free and deicing of surfaces, clothing, thermal protection,
o
Integration of design aspects for mechanical
(equipment) and human process reliability;
·
Analysis of applicability of the evacuation
methods in extreme arctic conditions and optimal systems for
both open water and ice conditions;
·
Emergency response vessels specifications for the
Arctic.
o
Combination standby and rescue and/or evacuation
vessels
o
Dedicated vessels off platform and launching from
platform optimization |
P1404 |
Updates to Fault Tree Methodology and Technology for
Risk Analysis Chukchi Sea Sale 193 Leased Area
CLIENT: United States Department of the Interior,
Bureau of Ocean Energy Management DATE: 2014
DESCRIPTION:
Oil spill occurrence estimates were generated for
the future hypothetical oil and gas development scenario, the
Anchor A and Satellite A-2 (the Project), in the Chukchi Sea
Outer Continental Shelf (OCS) Sale 193 Leased Area. Because
sufficient historical data on offshore oil spills for this
region do not exist, an oil spill occurrence model based on
fault tree methodology was developed and applied. Using the
fault trees, base data from the Gulf of Mexico and Pacific OCS
including the variability of the data, were modified and
augmented to represent expected Arctic offshore oil spillage
frequencies. |
P1403 |
Risk Analysis Methods and
Applications
- BOOK - 2nd printing
CLIENT: n/a DATE: published in 2012, 2nd printing
2014
DESCRIPTION:
This book encapsulates Dr.
Bercha’s unique expertise gained throughout his professional career which
spans over 40 years. This book will benefit those working in the
field of risk analysis, and is of value to decision makers, land use
planners, operators, and others. Part 1 lays out a clear methodology and
approach to solving complex risk analysis problems. Part 2 presents
practical application of this methodology in a variety of settings.
Follow the links below to purchase or for more detailed information.
View the book cover >>
Go to "About Us" for current ordering information >> |
P1402 |
Risk
Analysis and Land Use Planning Applications
CLIENT: City of Oakville DATE: 2014
DESCRIPTION: To provide an introduction to risk analysis and its
applications to land use planning in the context of the proposed
Union Gas natural gas pipeline in Oakville, Ontario. |
P1401
|
Building
Safety Architecture – Book
CLIENT: n/a DATE: 2014
DESCRIPTION: This book, by Dr Bercha, is about architectural
provisions to enhance the safety of building occupants. The
provisions entail protection from natural and manmade threats.
The main areas covered are the identification and detailed
characterization of natural and manmade threats or hazards,
description of human behaviour under life threatening emergency
conditions, a description and analysis of existing regulatory
and physical provisions for the protection of building
occupants, a look to future threats from global warming and
possible ways of protecting against it, and finally ways of
enhancing the design of new buildings and retrofit of existing
buildings to provide optimal protection to building occupants.
Preparation of the manuscript began in 2014. |
2013 |
To Top of Page |
P1306
|
Westerra Subdivision QRA
CLIENT: Harvard Developments DATE: 2013
DESCRIPTION:
Quantitative Risk Analysis including risks to
potential development occupants from adjacent gas storage
caverns and an industrial waste processing plant. The QRA is
carried out under Regina planning protocol, utilizing the Regina
interpretation of MIACC guidelines as land use planning
thresholds. |
P1305
|
Foxtail Grove Subdivision QRA
CLIENT: Stantec-Dundee DATE: 2013
DESCRIPTION:
QRA of the proposed Foxtail Grove development and
adjoining potentially developable lands. An earlier QRA covered
part of the Foxtail Grove development in 2009; an update of that
QRA is carried out, as well as further risk assessment
associated with future rail and highway bypass locations
adjacent to the area. The QRA is carried out under Regina
planning protocol, utilizing the Regina interpretation of MIACC
guidelines as land use planning thresholds. |
P1304
|
Escape, Evacuation, and Rescue (EER) Assessments for
the Amauligak Development
CLIENT: ConocoPhillips
Canada DATE: 2013
DESCRIPTION:
Work involves the development of a conceptual assessment of the
reliability of various EER systems for various options for the
proposed Amauligak development. The work includes general EER
system description and conceptual evaluation, quantitative EER
options evaluation using probabilistic model, and the conduct of
a HAZ-EER and workshop sessions.
Principal evacuation systems evaluated include ice resistant
TEMPSC, ARKTOS, and gangways to and from ice breaking SBVs. |
P1303
|
ATCO Urban Pipeline Relocation Risk Issues
CLIENT: Carscallen LLP DATE: 2013
DESCRIPTION:
Technical advice to legal firm representing
intervenors regarding the proposed relocation of urban natural
gas pipelines in Transportation Utility Corridors in Calgary and
Edmonton. The advice was based on risk related assessments
carried out by the proponent, and included suggestions on
improving the scope and coverage of such risk analyses.
|
P1302
|
Historical Pipeline and Tanker Failure Frequency and
Consequence Study
CLIENT: ConocoPhillips
Canada DATE: 2013
DESCRIPTION:
The purpose of the work was to provide a
quantitative historical comparison and trending of accidents
involving applicable types of pipelines and tankers with an
indication of the frequencies and consequences of accidents
resulting in oil spills. Accordingly, the work consisted of the
assimilation of worldwide statistics on buried, above grade, and
subsea pipelines and crude oil tanker spills, with as much
detail as available to provide information on spill causes and
spill consequences. It is important to emphasize that the
objectives did not include the consideration of specific Arctic
or other project-specific effects on the oil spill statistics;
rather, the work was restricted to the use of historical data
largely from non-Arctic regions, except for above grade
pipelines, although a section describing methodology applicable
to Arctic projects was included. |
P1301
|
ICETECH 2014 – International Conference and
Exhibition on Performance of Ships and Structures in Ice
Looking to the Future in a Warming World
CLIENT: n/a DATE: July 28-31, 2014
DESCRIPTION: ICETECH 2014, the 11th
International Conference and Exhibition on Performance of Ships
and Structures in Ice was held July 28-31, 2014 in Banff, Alberta Canada. Frank
Bercha and Merv Edgecombe co-chair the 2014 Organizing
Committee. Again, the focus was on the general theme of
performance of ships and structures in ice - but
with emphasis and special sessions on looking to the future
in a warming world.
There were
7 plenary and 50 technical presentations –
covering a wide range of specialty topics within our theme of
performance in ice, with emphasis on icebreaking ships, ice
resistant structures, and operations in ice. These were
presented during the conference by authors from around the
globe.
ICETECH hosted a small commercial exhibition for organizations
in the industry. An all inclusive meal and social program for
all delegates as well as tours and activities for accompanying
persons was offered. See
www.icetech16.org
for more. |
2012 |
To Top of Page |
P1208 |
Analysis of Risks to Proposed Harbour Landing West
Development from Existing Oil and Gas Pipelines
CLIENT: Stantec Consulting Ltd DATE: 2013
DESCRIPTION:
Stantec retained Bercha to conduct a quantitative
risk analysis of oil and gas pipelines to assess the risks to
the proposed Harbour Landing West development, including the two
east-west pipeline corridors. Corridor 1 is the southern one,
containing six TransCanada Pipelines (TCPL) lines, and Corridor
2 is the northern one, with two TransGas (TG) lines. The City of
Regina requires a risk assessment report on possible risks from
hydrocarbon pipelines to any proposed subdivision in support of
the permitting process. |
P1207 |
Gas Release Evaluation
CLIENT: EnCana DATE: 2013
DESCRIPTION:
The modeling of the characteristics of a gas
release from the subsea pipeline and on-land pipeline rupture.
The work included the use of the proprietary blowdown and
dispersion models to evaluate flammable gas cloud
characteristics for selected release scenarios. |
P1206
|
Loss of Well Control Occurrence and Size Estimators
for the
Alaska OCS
CLIENT: Bureau of Ocean Energy Management (BOEM),
United States Department of the Interior DATE:
2012-2014
DESCRIPTION:
A multiyear study of historical data and
statistics on offshore losses of well control including
blowouts, to provide quantitative input to future Arctic
offshore well control accident probability and characteristic
predictions. The objectives of this study were to: (1) Update
offshore loss of well control frequency information through 2012
for the US, Canadian and Australian offshore regions, the North
Sea, and other areas with a comparable regulatory regime,
including acquisition and analysis of the SINTEF blowout data
base. Exposure variable information was also collated. (2)
Apply statistical procedures to develop loss of well control
occurrence rates for different operational phases and product
spilled - eg, gas, crude and condensate, drilling mud, as well
as an outrider (small sample) analysis applicable to major
events such as the Macondo blowout. (3) Estimate issues of
occurrence rates, size estimator(s) and confidence intervals
related to this study and study results. Results and
methodologies will be reviewed by a third party scientific panel
of appropriate experts; submission of the study findings to peer
reviewed publications is encouraged. The study was initiated in
2012, and completed in 2014. |
P1205 |
Analysis of Sour Water Pipeline Release
CLIENT: Osler et al LLP DATE: 2012
DESCRIPTION:
Review and analysis of facts and evidence
relating to a sour water pipeline release in 2010. |
P1204 |
Northern Gateway
Project NEB Hearing Support
CLIENT: Northern Gateway Pipelines DATE: 2012-2013
DESCRIPTION:
Provision of technical services related to risk
assessment and provision of expert testimony at National Energy
Board (NEB)
hearings on the permissibility of the proposed Northern Gateway
Project, which consists of pipelines between Alberta and Kitimat,
a transhipment terminal in Kitimat, and marine transportation of
incoming condensate and outgoing crude oil to and from foreign
locations. Risk analysis evidence was generated by the Bercha
Group on various aspects of the project, including public safety
of the pipelines, pump stations, terminal, and aspects of the
marine transportation system, over several years during the
project preparation phase. Dr Bercha was the expert witness in
the pipeline operations panel at NEB hearings, supporting the
evidence his company had generated, as well as other evidence
filed through responses to Information Requests (IRs). In
addition, technical support including quantification of
potential release volumes associated with any location along the
proposed pipelines was provided to support other studies,
including spill trajectory modeling, and environmental impact
assessments. |
P1203 |
E&B Oil Development Project Quantitative Risk
Analysis
CLIENT: E&B Natural Resources Management
Corporation DATE: 2012
DESCRIPTION:
E&B Natural Resources Management Corporation
(E&B) is proposing the development of the E&B Oil Development
Project (the Project) on a site within the City of Hermosa
Beach. The Project provides for the development of an onshore
drilling and production facility that would utilize directional
drilling techniques to access crude oil and natural gas reserves
in the tide lands granted by the State of California to the
City, and in an onshore area known as the “uplands”. The Project
is divided into four phases as follows: Phase 1: Site
Preparation, Phase 2: Drilling and Testing, Phase 3: Final
Design and Construction, and Phase 4: Development and
Operations. Only Phases 2 and 4 are dealt with in this report,
because these are the only phases which include hydrocarbon
drilling and production operations.
To support the design and regulatory
process, E&B has commissioned Bercha to carry out a quantitative
risk analysis (QRA) to assess public safety and environmental
risks resulting from the Project. The public QRA considers only
acute risks to people from accidental hydrocarbon releases; it
does not cover chronic health risks. The environmental QRA only
considers acute environmental risks from oil spills offsite. |
P1202 |
Analysis
of Risks to Proposed Hawkstone Subdivision from Adjacent
Hydrocarbon Multi-Pipeline Corridor
CLIENT: Hawkstone Developments Ltd. DATE: 2012
DESCRIPTION: Bercha conducted a quantitative risk analysis of
the multi-pipeline corridor adjacent to the proposed Hawkstone
subdivision. The multi-pipeline corridor is located at the south
boundary of the proposed development. The City of Regina
requires a risk assessment report on possible risks from
pipelines to the proposed subdivision in support of the
permitting process. |
P1201 |
Analysis
of Risks to Dundee Regina Lands from Multi-Pipeline Corridor and
Future Regina Bypass Road
CLIENT: AECOM DATE: 2012
DESCRIPTION: Bercha conducted a quantitative risk analysis of
the multi-pipeline corridor and future Regina west bypass to
assess the risks as they may affect the Dundee Realty
Corporation Lands. The City of Regina requires a risk assessment
report on possible risks from pipelines and dangerous goods
roads to any proposed subdivisions in support of the permitting
process. |
2011 |
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P1108
|
Escape,
Evacuation, and Rescue (EER) Support Services
CLIENT: ConocoPhillips DATE: 2011
DESCRIPTION: Provision of EER R&D, reliability analysis, and
modeling services in support of Arctic offshore oil and gas
development. |
P1105
|
Enbridge
Training
CLIENT: Enbridge DATE: 2011
DESCRIPTION: The work under this project consists of provision
of training services in quantitative risk analysis applications
to both project integrity and public safety, as well as
facilitation services for project risk reviews. The training
component involves both these two phase workshops as well as
distance learning including document transmissions, emails, and
teleconversations. |
P1104 |
Updates to Fault Tree for Oil Spill Occurrence
Estimators. UPDATE OF GOM AND PAC OCS STATISTICS TO 2012
CLIENT: US Department of the Interior, Bureau of Ocean Energy
Management, DATE: 2013
DESCRIPTION: Historical data and their statistical analyses are
used as a starting point for fault tree application to oil spill
indicator quantification for the Alaska Arctic Outer Continental
Shelf (OCS). In the initial fault tree analysis, data from the
Gulf of Mexico (GOM) OCS were analyzed for the period from 1972
to 1999. In 2008, a more refined publication of the data
characteristics by MMS (now BOEM) has made it possible to
conduct a more thorough statistical analysis as well as an
update of the GOM data and its analysis to 2006. The current
report generally discusses and gives data summaries as well as
detailed statistical results from the re-analysis of the data,
including an update of the GOM and Pacific (PAC) OCS data for
platform and pipeline hydrocarbon (crude oil, diesel oil,
condensate and refined petroleum products) spills, and an update
of blowout and well release spill frequencies to 2012. The work
is covered by BOEM contract number M11PC00013, and it is the
first update under Task 2 |
P1103 |
Building Safety Research
DATE: 2011-2014
DESCRIPTION:
The project consists of research directed at the
optimization of building design provisions for occupant safety
under emergency conditions. Both hazards associated with natural
phenomena such as hurricanes and tsunamis and man-made hazards
such as fires and explosions are considered. The work consists
of the review of incident data and data bases, review of
existing building code provisions in both North America and
worldwide locations, and the development of economic and
risk-benefit algorithms to balance between the various safety
provisions and associated costs of these provisions, and
potential probabilistic cost of the consequences with and
without the provisions. |
P1101 |
Alternative
Oil Spill occurrence Estimators for the Beaufort and Chukchi
Seas - Fault Tree Method
CLIENT: U.S. Bureau of Ocean Energy Management
Regulation, and
Enforcement (BOEM) DATE: 2011
DESCRIPTION: The BOEM Alaska Offshore Continental Shelf (OCS)
Region needs estimates of oil spill occurrences for the
development of environmental impact statements for possible
future offshore developments resulting from the sale of leases
for the US Beaufort Sea Outer Continental Shelf. Since 2000, a
series of studies carried out by Bercha were directed at the
development of a realistic method of predicting oil spill
occurrences, including source, size distribution, location, and
timing for potential future development scenarios associated
with offshore OCS lease sales.
Due to the
embryonic state of offshore oil development in this region, it
was not possible to base these oil spill probability estimates
on empirical data from that region. Rather, statistically
significant non-Arctic empirical data from the US Gulf of Mexico
(GOM) and world-wide sources, together with their variance, were
used as a starting point. Next, both the historical non-Arctic
frequency distributions and spill causal distributions were
modified to reflect specific effects of the Arctic setting, and
the resultant fault tree model was evaluated using Monte Carlo
simulation to adequately characterize uncertainties treated as
probability distribution inputs to the fault tree. A series of
studies, associated with successive lease sale scenarios between
2000 and 2006, was carried out directed at developing and
applying the fault tree methodology. In addition, a study
directed solely at updating the GOM data was carried out. The
series of studies consisted of five Beaufort and/or Chukchi
application studies and the GOM data update studies. This report
summarizes the methodology and gives results of its application
to the prediction of oil spill probabilities and their
characteristics for the Chukchi and Beaufort Seas region based
on the most recent studies using the most recent statistics. |
P1100
|
Risk Analysis Methods and
Applications - book
CLIENT: n/a DATE: first printing 2012
DESCRIPTION:
This book encapsulates Dr.
Bercha’s unique expertise gained throughout his professional career which
spans over 40 years. This book will benefit those working in the
field of risk analysis, and is of value to decision makers, land use
planners, operators, and others. Part 1 lays out a clear methodology and
approach to solving complex risk analysis problems. Part 2 presents
practical application of this methodology in a variety of settings.
See P1403. |
2010 |
To Top of Page |
P1010 |
NORTHERN
GATEWAY KITIMAT TERMINAL QUANTITATIVE RISK ANALYSIS
CLIENT: Northern Gateway Pipelines Inc DATE: 2011
DESCRIPTION:
Northern Gateway
Pipelines Inc. (NGPL) is designing and preparing regulatory
applications for its proposed Northern Gateway Project (NGP),
which consists of an oil pipeline, a condensate pipeline, and
the Kitimat Terminal (the Terminal). To support the Terminal
design and regulatory process, NGPL has commissioned Bercha
Group Limited (Bercha) to carry out a quantitative risk analysis
(QRA) to assess personnel safety at the Terminal and public
safety in its vicinity. The QRA considers only acute risks to
people; it does not cover chronic health risks or environmental
risks. |
P1009
|
CUMULATIVE RISK ASSESSMENT AND LAND USE
PLANNING PROJECT
CLIENT: City of Edmonton DATE: 2011
DESCRIPTION: The purpose of the cumulative risk assessment (CRA)
and Land Use Planning Project is to provide a characterization,
analysis, and quantification of the risks to the community from
multiple risk sources in the designated study areas, and to
develop and implement risk based land use guidelines to provide
support for the COE planning process. Accordingly, the results
of the work are intended to support the COE planning process so
that any alternative use of these results is not intended or
valid.
The scope of work in Phase 1 covers areas that are
relatively highly developed in the City of Edmonton in terms of
industrial facilities and adjacent public, residential, and
commercial uses. Phase 2 concentrated on a developing area, the
Horsehills area, with the focus shifted from the analysis of
existing facilities to planned and potentially developing
facilities.
Work was dedicated to each of the main tasks as
follows: data assimilation, cumulative risk analysis, Geographic
Information System (GIS), risk communication and workshops, risk
based land use guideline and bylaw, and conclusions and
recommendations. These tasks are applicable to both phases, with
distinct characteristics of each phase pointed out as needed. |
P1008 |
UPDATE TO ANALYSIS OF RISKS TO PROPOSED LAND
DEVELOPMENT IN SW REGINA FROM EXISTING NATURAL GAS PIPELINES
CLIENT: Stantec Consulting Ltd DATE: 2009-10 (See also
P2905)
DESCRIPTION: An analysis of the risks to proposed land
development in southwest Regina from existing natural gas
pipelines was carried out by Bercha (P2505) based on the
preliminary concept plan of 2005. It was found that the risk to
residents were at acceptable levels for the proposed plan.
Subsequently, a revised plan has been generated. As requested by
Stantec, Bercha reviewed its previous risk assessment in the
context of the new proposed development plan and advised on risk
acceptability in an Addendum Report. |
P1007
|
ICETECH 2012 - INTERNATIONAL CONFERENCE & EXHIBITION on
Performance of Ships and Structures in Ice
CLIENT: n/a DATE: September 17-20, 2012
DESCRIPTION:
ICETECH 2012 was held September 17-20, 2012 in
Banff, Alberta Canada.
Frank
Bercha and Alex Brovkin co-chaired the 2012 Organizing Committee.
60 technical and plenary presentations covered a wide range of
specialty topics within the theme of performance in ice, with
emphasis on icebreaking ships, ice resistant structures, and
operations in ice. Post-Conference Proceedings include the
papers and presentations from the conference, as well as
information from Monday's session: World Maritime Day
Observance: One Hundred Years after the Titanic, hosted by the
North American Marine Environment Protection Association (NAMEPA)
and Transport Canada. Conference photos and other information
generated during the panels are also included. |
P1005
|
NORTHERN GATEWAY RISK
ANALYSIS
CLIENT: Northern Gateway Limited Partnership DATE: 2010
DESCRIPTION: Provision of specialist services in support of
National Energy Board application for the Northern Gateway
Project. |
P1006 |
HERMOSA BEACH PROPOSED OIL PROJECT LITIGATION
CLIENT: Bird Marella et al, PC DATE: 2012
DESCRIPTION: A lawsuit by the original proponents of the
proposed Hermosa Beach Oil Project was launched some years
following the refusal by the City of Hermosa Beach to grant a
permit to proceed with the project. Bercha Group had carried out
the original risk analysis for the City in 1998, providing
partial grounds for the City’s refusal to proceed with the
project. Subsequently, MacPherson Oil, the original proponents
of the project, initiated a lawsuit for lost profits due to the
failure to proceed with the project. The work by Bercha
consisted of review of various filings and documents and the
preparation of a defense based on the facts available regarding
the project safety and other aspects of the project in 1998. The
matter was, however, settled out of court when E&B Natural
Resources acquired the rights to MacPherson Oil and are
currently proceeding with a new project proposal. |
P1003
|
SOMERSET DEVELOPMENT RISK FACTOR REVIEW
CLIENT: McElhanney DATE: 2010
DESCRIPTION: A mixed residential and
commercial development adjacent to NE Regina is proposed. As the development
is next to a CP railway and near an Enbridge multipipeline
corridor, Regina planning requested that a
risk analysis be carried out to
ensure compliance with their risk-based planning guidelines. The
work consisted of a qualitative study to define the relevant
risk factors and their possible risk impacts and to indicate
whether the land is likely to be “suitable for the uses
intended” by the developer. |
P1002 |
WATERTON
68 & CASTLE RIVER DEVELOPMENT RISK ANALYSIS
CLIENT: Shell Canada Energy DATE: 2010
DESCRIPTION: Provision of risk assessment work for Shell on the
Waterton 68 & Castle River Development projects. |
P1001
|
EDMONTON CUMULATIVE RISK ASSESSMENT AND LAND
USE PLANNING PROJECT
CLIENT: City of Edmonton DATE: 2010
DESCRIPTION: The purpose of this cumulative risk assessment (CRA)
and Land Use Planning Project was to provide a characterization,
analysis, and quantification of the risks to the community from
multiple risk sources in the study areas. Results formed
recommendations for improved land use management, municipal land
use policies and regulations, will provide improved assurance
for industry, and promote ensured public safety. Accordingly,
the emphasis in the work was on the technical risk analysis
execution in a form and context amenable to application to the
development of land use management, policies, and regulations to
enhance compliance by industry and ensure public safety.
Generally, the scope of work in Phase 1 covered
areas that were relatively highly developed in the City of
Edmonton, in terms of industrial facilities and adjacent public,
residential, and commercial uses. The risk analysis of these
existing areas constituted the focus of Phase 1. Phase 2
concentrated on a developing area, the Horsehills Study Area.
Here, the focus shifted from the analysis of existing facilities
to the application of the knowledge gained from Phase 1 (and
elsewhere) to planned and potentially developing facilities for
the Horsehills area.
See also
P1009 for current work relating to this
project.
|
|
|
A
facility in the study area |
Dr.
Bercha presents |
Meetings throughout the project |
|
2009 |
To Top of Page |
P2911
|
PIPELINE INSPECTION AND SURVEILLANCE
REQUIREMENTS AND PRACTICES IN CANADA
CLIENT: Emera Brunswick Pipeline DATE: 2009-2010
DESCRIPTION: This work generated a
summary of the requirements for pipeline inspection and
surveillance practices to ensure the integrity of a pipeline in
Canada for the purpose of transporting sweet natural gas. Actual
practices of some operating pipeline companies were included,
along with discussion of practices utilized for the subject pipeline. |
P2910
|
ARKTOS GENERAL
EVALUATION AND DEVELOPMENT
CLIENT: Transport Canada DATE: 2009
DESCRIPTION: The work consisted of the full-scale evaluation of
the performance characteristics of the ARKTOS shear zone
vehicle. Tests were carried out in full-scale in the Fraser
River, and included maneuverability, acceleration, and emergency
operation without power from the leading unit. Generally,
adequate performance was noted under normal operations; the
emergency operation was satisfactory but not recommended under
real emergency conditions. |
P2909
|
ARCTIC EER SEMINAR
CLIENT: DBC Technologies DATE: 2009
DESCRIPTION: A seminar on the general problems and solutions of
operational and developmental for escape, evacuation and rescue,
with emphasis on evacuation, for installations and ships in
Arctic ice conditions was presented. In addition, a novel chute
design for evacuation under toxic atmospheric conditions was
reviewed and discussed. |
P2908
|
TERMPOL
VAPOUR CLOUD MODELING AND CONDITIONAL QRA
CLIENT: Northern Gateway Limited Partnership DATE: 2009
DESCRIPTION: Bercha was contracted to conduct condensate vapour
cloud modeling and a conditional quantitative risk analysis (QRA)
to help fulfill the TERMPOL requirements for marine traffic
associated with the Enbridge Northern Gateway Project. To help
meet Transport Canada TERMPOL 3.15 requirements associated with
marine shipping of liquid hydrocarbons in Canadian waters, the
client requested Bercha conduct an accidental spill vapour cloud
analysis and a conditional general risk assessment, on
project-specified spill occurrence scenarios. The final report
described in detail the vapour cloud dispersion, consequence,
and conditional risk modelling carried out to assist in
compliance with the stated TERMPOL requirements, and provide
support for the environmental effects assessment for the project
|
P2906
|
NORTHERN
GATEWAY PIPELINE OIL SPILL OCCURRENCE FREQUENCY ANALYSIS
CLIENT: Northern Gateway Limited Partnership DATE:
2009-2010
DESCRIPTION: A key aspect in determining potential environmental
and socio-economic effects of accidents and malfunctions that
might occur during the construction and operation of an oil
pipeline project is an indicator of the likelihood and magnitude
of the occurrence of a spill. This report documents the
methodology used and results generated on oil spill indicators
for the proposed Northern Gateway Oil Pipeline. |
P2905
|
ANALYSIS OF RISKS TO PROPOSED LAND DEVELOPMENT
IN SOUTHWEST REGINA FROM EXISTING NATURAL GAS PIPELINES
CLIENT: Stantec Consulting Ltd DATE: 2009
DESCRIPTION: An analysis of the risks to proposed land
development in southwest Regina from existing natural gas
pipelines was carried out by Bercha based on the preliminary
concept plan of 2005. It was found that the risk to residents
were at acceptable levels for the proposed plan. Subsequently, a
revised plan has been generated. The client requested Bercha
review its previous risk assessment in the context of the new
proposed development plan and advise on risk acceptability.
|
P2903
|
DEMAND MODEL
CLIENT: ATCO Gas DATE: 2009
DESCRIPTION: The work involved the development of a
probabilistic gas supply demand model for northern Alberta.
Monte Carlo simulation was utilized as a basis for the demand
distribution estimates generated. |
P2902
|
NORTHERN
GATEWAY PIPELINE OIL SPILL RISK ANALYSIS
CLIENT: Northern Gateway Limited Partnership DATE: 2009-2010
DESCRIPTION: To support the pipeline design and regulatory
process, Bercha conducted an oil spill risk analysis for the
pipeline, as well as specified regions and locations along the
proposed route. |
P2901
|
JOINT
INDUSTRY PROJECT: ESCAPE,
EVACUATION, AND RESCUE
CLIENT: Joint Industry Project DATE: 2009
DESCRIPTION: Although there are numerous arctic offshore
drilling and production operations, and numerous in the planning
stage, no comprehensive quantitative feasibility and reliability
evaluation of operational and developing escape, evacuation, and
rescue Arctic and open water (EER) systems has been conducted.
This work in
the JIP has been structured to allow participation by different
numbers of partners. Thus there is a common portion of the work,
with generic results for all relevant EER technologies, and a
partner-specific component which will allow each partner to
designate a specific development scenario and location, to which
two alternate EER designs, reliability analyses, sensitivities
to accident scenarios, and technology gap analyses and
conceptual gap rectifications will be carried out.
As part of this project,
an EER strategy workshop held in July of 2009 in conjunction
with ConocoPhillips. The EER Strategy Workshop generated two
general types of results, as follows:
(1)
Conceptual results regarding the EER systems and
combinations considered, captured in the notes to the
minutes and in the worksheets. These conceptual results
represent the opinions of experts, not necessarily in
agreement among themselves, but have been recorded
regardless of consensus or dissention.
(2) Numerical
ranking results, giving some indication of the compliance
with individual EER system criteria and average relative
rankings among the systems considered. |
2008 |
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P2816
|
ICETECH 2010 - INTERNATIONAL CONFERENCE & EXHIBITION on
Performance of Ships and Structures in Ice
CLIENT: n/a DATE: September 20-23, 2010
DESCRIPTION:
ICETECH 2010 took place September 20-23, 2010 in Anchorage, Alaska,
USA.
Frank
Bercha, Lawson Brigham, and Nils Andreassen co-chaired the Organizing Committee.
The Arctic Section of the Society of Naval Architects and Marine
Engineers (SNAME) together with Alaska’s Institute of the North
worked together to stage a very successful ICETECH 2010, the
premiere international conference on ships and structures in
ice. The theme of the conference is "Performance of Ships and
Structures in Ice", but included the hot topics of global warming,
geopolitics, and future expectations for the Arctic through
participation of Arctic Marine Shipping (AMSA) and other
experts.
|
P2815
See P1403 for most recent |
METHODS AND APPLICATIONS OF RISK ANALYSIS -
book preparation
CLIENT: n/a DATE: 2008-2009
DESCRIPTION: The drafting and computations for a practical
textbook providing guidance on methodologies and applications of
risk analysis forms the bulk of this project. Started in 2006,
by the end of 2009, the work had advanced to a draft manuscript
consisting of over 20 chapters. The manuscript included methodology, representative examples,
and a detailed series of applications. Specific areas covered
include pipelines (natural gas, sour gas, hydrocarbon
liquids), refineries and gas plants, road, rail, air and
intermodal transportation systems,
offshore facilities, sub-sea pipelines, escape, evacuation and
rescue modeling, offshore marine oil spills, and other
applications from the large repertoire of projects carried out
by the Bercha Group. |
P2814
|
MUSQUASH
AREA QRA
CLIENT:
Brunswick Pipeline DATE: 2008
DESCRIPTION: One of the undertakings of the National Energy
Board hearings for the Brunswick Pipeline under P2608 was to
carry out a risk analysis for the pipeline as it passes through
a region of frequented with various hydraulic structures,
including concrete and earth dams and pen stocks to
hydroelectric plants. Utilizing the results of a hydraulic
structure failure probability analysis by others, the risks from
the Brunswick Pipeline in the vicinity of the hydraulic
structures was assessed utilizing a modified version of the 2006
risk model adopted by the NEB. |
P2813 |
DEMAND MODEL
CLIENT: ATCO DATE: 2008
DESCRIPTION: A preliminary design for the demand model from gas
storage caverns in northern Alberta was developed. The model is
to utilize the results of a statistical analysis of the volume
flows correlated with ambient temperatures at roughly 80 gate or
supply stations. Its purpose is to be able to predict the likely
gas demand from the cavern for predicted user population under
very cold winter temperatures. The project consisted of the
review of previous work, data analysis, and a preliminary model
design. |
P2812 |
DEPOSITION
CLIENT: Confidential Client
DATE: 2008
DESCRIPTION: Consisted of attendance and deposition of expert
evidence regarding the safety of a major trans-mountain crude
oil pipeline. Evidence was based on a series of studies carried
out by the Bercha Group over the previous four years. |
P2811 |
QUANTITATIVE MAJOR RISK
ANALYSIS OF AN
OIL PIPELINE MARINE TERMINAL
CLIENT: Confidential Client
DATE: 2008
DESCRIPTION: Consists of the quantitative risk analysis of a
proposed major hydrocarbon liquids pipeline system, together
with a marine terminal. Both onshore spills from the pipeline
system and marine terminal facilities and offshore spills that
could be generated through terminal operations, as well as
approach and egress of hydrocarbon liquid tankers were studied
and quantified. |
P2810 |
LEAHEY QRA
CLIENT: DM Leahey & Associates
Limited DATE: 2008
DESCRIPTION: Work consisted of the review of risks associated
with the operation of a sour oil battery within the potential
impact zone of the proposed residential subdivision. |
P2809
|
MOLIKPAQ HAZEER
CLIENT: Sakhalin Energy
Investment Corporation (SEIC)
DATE: 2008
DESCRIPTION: The work consisted of a critical evaluation
of the Molikpaq Escape, Evacuation, and Rescue (EER) systems and
procedures. The Molikpaq is a former Beaufort Sea platform now
located off the east coast of Sakhalin Island at the Lun-A
Field. Activities carried out included a review of previous
studies and available information, implementation of a HAZOP
type workshop at head offices in Yuzhno, as well as onsite at
the Molikpaq, inspection and data collection at the Molikpaq
platform including staging of various EER drills and their
detailed documentation, and final reliability matrix, HazEER,
and PEERS simulation analysis to assess the reliability of the
system. Both an onsite and a final post-visit summary report
were generated, giving short-term and long-term recommendations
to improve the reliability of the system and associated
procedures. The work was carried out by two senior Bercha Group
experts on site with appropriate engineering support at home
office.
|
|
Figure
1: Molikpaq in Ice |
Figure
2: Molikpaq in Open Water |
|
P2808
|
BATTERY QRA
CLIENT: DM Leahey & Associates
Limited DATE: 2008
DESCRIPTION: The work was conducted jointly with Leahey, and
consisted of a risk analysis of an existing sour oil battery
being encroached by a residential subdivision. It was concluded
that the proposed setback was adequate to assure only
insignificant risk to members of the public. |
P2807
|
CLUBROOT
CLIENT: Enbridge DATE: 2008
DESCRIPTION: The project was a combined risk and geomatics
project involving the development of methodologies for the
detection of clubroot infected canola fields. The primary
application of the detection is the protection of uninfected
fields from possible transmission of infected soils through
pipeline construction machinery movements along the pipeline
route. |
P2806 |
PROPOSED
ATCO VALVE INSTALLATION QRA
CLIENT: ATCO Pipelines DATE: 2008
DESCRIPTION: The client proposed to install two new sets of
block valves on their transmission line, located in the Canadian
Pacific (CP) railway right-of-way in the Canmore area. The need
for additional valves on this transmission line had been
precipitated by the increase in population density in the
vicinity of the pipeline. Although the addition of block valves
to the transmission line will assist in reducing the amount of
natural gas which could be released from a possible transmission
line failure, the block valve installations themselves add risk
as an additional potential release source. In order to assess
the risks associated with the addition of the proposed valve
installations, Bercha was retained to carry out a quantitative
risk analysis (QRA). The general conclusion regarding risks from
the proposed installations, was that risks to any members of the
public, including workers, are all within acceptable and
insignificant levels. |
P2805
|
ICETECH 2008 INTERNATIONAL CONFERENCE & EXHIBITION WRAP UP
CLIENT: n/a DATE: July 20-23, 2008
(see also P2615)
DESCRIPTION:
Dr. Bercha chaired the Organizing Committee for ICETECH 2008.
The conference positively exceeded expectations with over 175
delegates attending, full sponsor and exhibitor subscription,
over 50 technical papers presented, and an exciting social and
accompanying persons program. The technical program, the events,
the setting, and the attendees made it a very enjoyable and
technically sound event! The technical program each day began
with two plenary papers, including: the changing Arctic;
evolution of offshore safety regulations and practices; naval
architecture developments for the Arctic; escape, evacuation,
and rescue (EER); and current major offshore Arctic projects and
developments. Workshops on EER and Arctic Marine Shipping
Assessment (AMSA) rounded out the technical program. ICETECH 2008
Post-Conference Proceedings are available in CD format; see
www.icetech16.org for ordering
information. |
P2804
|
SHELL HOIST INTERCONNECT
PIPELINE QRA
CLIENT: Shell
Canada Products DATE: 2008
DESCRIPTION: A quantitative risk analysis (QRA) was
conducted of the proposed HOIST pipelines. The risk assessment
included consideration of the engineering and operational
parameters of the proposed project within the context of the
current location. The risk source was a proposed multi-pipeline
complex consisting of over 10 pipelines in a common corridor,
transporting a variety of products ranging from heavy crude oil
to LPGs and hydrogen. The primary focus of the risk assessment
was quantification of acute risks to the public. The key results
of the work are estimates of individual risks to the public for
all representative individuals and conditions along the
pipeline. |
P2803
|
ALBERTA
CLIPPER
CLIENT:
Enbridge DATE: 2008
DESCRIPTION:
Provision of support risk services during the design and
construction stages of a major crude oil pipeline from the
Edmonton area to a location in southern Manitoba, south of St.
Leon, where it crosses into the United States. Support services
have included probabilistic analysis of various bid components
and bids for construction of the various portions of the
pipeline, general risk services, and detailed analysis of bids
for each of the main segments, utilizing Monte Carlo simulation
in order to provide probabilistic distributions of the likely
outcomes in economic terms of these bids. The methodology
utilized was a risk factor approach in which weighing factors
were attributed to all significant factors associated with the
likely economic performance of each bidder, to provide a risked
cumulative distribution function of the probable capital cost
distribution. |
P2802 |
HARDISTY MERCHANT TANKS COST TO
COMPLETION RISK
CLIENT: Enbridge
DATE: 2008
DESCRIPTION:
In this study Bercha assessed risks to capital costs for a large
industrial project. Cost distributions were calculated using
selected risk factors, as well as the entire array of risk
factors. The analysis was conducted on the basis of historical
performance since the inception of the system, considering
various economic factors, to provide a probable capital cost
distribution using Monte Carlo simulation. Pertinent conclusions
were generated and recommendations offered. |
P2801
|
JOINT
INDUSTRY PROJECT FEASIBILITY OF ARCTIC INSTALLATION EER
CLIENT:
ConocoPhillips (Canada) and StatoilHydro (Norway)
DATE: 2008-2010
DESCRIPTION:
The project consists of the analysis of existing EER systems for
Arctic applications, their evaluation, and ranking according to
reliability and overall feasibility, and the design and
reliability analysis of new EER systems for locations selected
by each of the partners. The site-specific analysis consists of
the development of two alternative EER system configuration and
its reliability analysis using the Bercha Probabilistic Escape,
Evacuation, and Rescue Simulator (PEERS) to assess the absolute
and relative reliability under a range of site-specific
environmental and installation-specific operational and accident
conditions. |
2007 |
To Top of Page |
P2713 |
TURNER VALLEY
RESERVOIR CONTAMINATION RISK ANALYSIS
CLIENT: Town
of Turner Valley DATE: 2007-2008
DESCRIPTION:
The Town of Tuner Valley proposed to utilize the raw water
storage reservoir to supply the Town’s potable water treatment
plant, which provides the municipal water supply to the town
residents. The plans for the conversion of this reservoir to
provide potable water distribution had been developed and
included a variety of provisions to assure that the water supply
remained pure. Subsequently, interveners had expressed concern
regarding the possible inadequacies of the proposed measures to
maintain water purity, should such
measures prove inadequate. In order to clarify the risk that may
be posed by the reservoir conversion, Bercha was retained by the
Town of Turner Valley to carry out a quantitative risk analysis
(QRA), to provide perspective on the possible risk factors and
their impact on reservoir and water distribution contamination. |
P2712 |
QRA OF
PROPOSED SAINT JOHN RIVER ALTERNATIVE CROSSING
CLIENT:
Brunswick Pipeline DATE: 2007
DESCRIPTION:
At the time the study was conducted, the Brunswick Pipeline was
proposed to extend from the Canaport LNG Facility at Mispec
Point in St. John, New Brunswick, to the international border
near St. Stephen, New Brunswick, where it would interconnect to
facilities owned and operated by Maritimes and Northeast
Pipelines. The preferred route for the pipeline crosses the
Saint John River, between a location close to Spar Cove, to a
southwest bank location at the Millford area. The preferred
crossing method was a horizontal directional drill (HDD), which
was analyzed in the QRA of the entire proposed pipeline, and
publicly reviewed and generally approved at NEB hearings in
Saint John in November 2006.
Because
there existed a possibility that the HDD may not be feasible or
successful due to geotechnical conditions, an alternative
crossing method – involving an open cut system – was considered.
The open cut crossing was the subject of the P2712.
|
P2711 |
RISK ANALYSIS
OF PROPOSED GAS DISTRIBUTION FACILITY
CLIENT:
Heritage Gas DATE: 2007
DESCRIPTION:
Heritage Gas proposed to locate a gas distribution centre in the
vicinity of the Macdonald Bridge Halifax approaches. The Bridge
Commission was concerned with possible damage from a failure at
the distribution centre that could affect the structural
integrity of the MacDonald Bridge and approaches. Heritage Gas
requested Bercha to carry out a quantitative risk analysis (QRA)
of the proposed facility at the proposed location, as well as
the incoming pipeline in order to assess risk levels to the
bridge and adjacent members of the public. Bercha provided
results of the investigation carried out, as well as pertinent
conclusions and recommendations. |
P2710 |
NEW
BRUNSWICK PIPELINE EPZ DESIGNATION
CLIENT: New
Brunswick Pipeline DATE: 2007-2008
DESCRIPTION:
An
Emergency Planning Zone (EPZ) is an area in the vicinity of a
hazardous installation, for which an Emergency Response Plan (ERP)
is developed and implemented. The development of the plan
requires the designation of an EPZ. In this study, Bercha
considered and made recommendations for an appropriate EPZ
designation, for which
an Emergency Response Plan (ERP) will be developed and
implemented. |
P2709 |
PROPOSED
NORTH EAST REGINA RESIDENTIAL DEVELOPMENT RISK ANALYSIS
CLIENT:
Stantec DATE: 2007
DESCRIPTION:
Bercha carried out a QRA to assess risks to residents in a
proposed subdivision in north east Regina from an adjacent
pipeline array and railway. The Bercha study followed the risk
analysis steps and presented risk results as annual individual
risks to resident. |
P2708 |
MAJOR HYDROCARBON LIQUIDS
PIPELINE
AND TERMINAL SYSTEM
CLIENT: Confidential Client
DATE: 2007
DESCRIPTION: A risk analysis of a major hydrocarbon liquids
pipeline system traversing mountainous territory was conducted.
In addition, selected loading and unloading spill scenarios at a
marine terminal were analyzed for probability and consequences,
including worker and public safety and marine oil spills. |
P2707 |
ARKTOS EER
SYSTEM
CLIENT:
Transportation Development Centre (TDC) of Transport Canada
DATE: 2007
Linked projects: P2707, P2701, P2601, P2501, P2401, P2301,
P2201, P2101, and P2001
DESCRIPTION:
The Final Report to project P2701, entitled
“Escape, Evacuation, and Risk Research Project: Phase III”,
summarized the work conducted in the subject area from January
2000 to February 2006, and was published under TP14600E in March
2006. In 2007, additional information and data were obtained on
the ARKTOS evacuation system, referred to in Sections 2.2.4 and
2.5 of the Phase III Final Report. Because these data, obtained
through both direct experiment and from the manufacturer and
various third party sources, provides a better representation of
the ARKTOS system and its capability, an Addendum Report was
generated under this project P2707. It specifically updated
Sections 2.2.4 and 2.5 of the Phase III final report, and
provided additional information on the ARKTOS system.
|
P2706 |
REVIEW OF
HALIFAX HARBOR CROSSING QRA AND LAND USE EFFECTS STUDY
CLIENT:
Heritage Gas Date: 2007
DESCRIPTION:
A review of current geotechnical findings confirmed that the
existing QRA remained adequate and did not require changes.
Additionally, Bercha addressed the question: "What type of
restriction will the pipeline place on future land development
directly above or in the vicinity of the pipeline?".
The
Bercha study concluded the following: The presence of a
pressurized natural gas pipeline requires diligent use of space
in its vicinity. The proposed line is well protected and has a
high level of integrity by virtue of its deep location and high
quality design, construction, and operation. Nevertheless, a
zone delineating a 15 m vertical and 10 m horizontal separation
from the is considered to be its vicinity. Within this location,
although land use is practically unrestricted, certain
guidelines to assure adequate protection to and from the
pipeline have been recommended. With these guidelines, resultant
risks are very low, and low enough to be considered
insignificant. |
P2705 |
PIPE TESTS
CLIENT:
Confidential Client
DATE: 2007
DESCRIPTION:
Bercha provided advice and analysis of the
statistical significance of a pipe testing program, including a
future test configuration to provide adequate statistical
significance on the integrity of pipemill produced line pipe.
|
P2704
|
Alternative Oil Spill Occurrence Estimators
CLIENT: United States Department of the Interior, Minerals
Management Service, Alaska
DATE:
Ongoing continuation of P2407 – contracted to Year 2010
DESCRIPTION:
Oil spill occurrence estimates were generated for several expected
future oil and gas development scenarios (including exploration,
production, and abandonment) in the Alaska Offshore Continental
Shelf (OCS) lease sale regions. Because sufficient historical
data on offshore oil spills for these regions do not exist, an
oil spill occurrence model based on fault tree methodology was
developed and applied. Using the fault trees, base data from the Gulf of Mexico including the variability of the data, were modified and augmented to
represent expected Arctic offshore oil spillage frequencies.
Three principal spill occurrence indicators, as follows, were
quantified:
§
Spill frequency
§
Spill frequency per barrel produced
§
Spill index, the product of spill size and
spill frequency
These
indicators were quantified for the following spill sizes:
§
|
Small
(S): |
≥50 to
<100 bbl |
§
|
Medium
(M): |
≥100 to
<1,000 bbl |
§
|
Large
(L): |
≥1,000
to <10,000 bbl |
§
|
Huge
(H): |
≥
10,000 bbl |
Quantification was carried out for each future year for
principal development scenarios, with a range of development
parameters, in duration up to 40 years. In addition, a
comparative scenario for non-Arctic locations was formulated and
analyzed for oil spill occurrence. Generally, it was found that
the non-Arctic spill indicators were likely to be significantly
higher than those for similar scenarios in the Arctic. The computations were carried out using a Monte Carlo process
to permit the inclusion of estimated uncertainties in the base
and scenario data and Arctic effects. A wide range of details
for each scenario was generated, including the following:
§
Expected time history of spill occurrences
over the scenario life.
§
Spill occurrence variations by spill volumes
in the above spill size ranges.
§
Spill occurrence variation by spill cause such
as boat anchoring or ice gouging.
§
Spill occurrence contribution from each main
facility type, including pipelines, platforms, and wells.
§
Comparison of spill occurrence predictions
between Arctic and non-Arctic scenarios.
§
Life of field averages of spill occurrence
estimators.
§
The variability in the results due to
uncertainties in the inputs was expressed as cumulative
distribution functions and statistical measures.
In the final report, a detailed description of the methodology,
results, and conclusions and recommendations will be given, as
well as a section on limitations of the study. |
P2703
|
HOPEWELL QRA
CLIENT: DM Leahey & Associates Limited DATE: 2007
DESCRIPTION: Quantitative risk analysis to assure safety of
residential development in the vicinity of a low H2S
sour gas pipeline, production wells, and battery in the Greater
Edmonton area. |
P2702
|
RISK ANALYSIS OF TEST HOLE ARCO#34 OPERATIONS
CLIENT: Petro-Canada
DATE: 2007
DESCRIPTION:
A quantitative risk analysis of the location and abandonment
operations for an existing test hole in close proximity to the
Petro-Canada steam assisted gravity drainage (SAGD) operation in
the Athabasca Tar Sands. Because of numerous unknowns and
uncertainties associated with the current condition of the
existing, but undocumented test hole, it was necessary to
establish risks based on current knowledge, and to refine these
risk estimates as additional information became available from
probes in the vicinity of the test hole. The purpose of the risk
analysis was to assure operational personnel safety and SAGD
project integrity maintenance.
|
Schematic
illustration of SAGD Underground Test Facility
(Source:
Pilot Testing of Post-Steam Bitumen Recovery from
Mature SAGD Wells in Canada, 1998)
|
|
P2701
|
ESCAPE, EVACUATION,
AND RESCUE (EER) R&D - PHASE III-B
CLIENT: Transportation Development Centre, Transport Canada
DATE: 2004-2006
Linked projects:
P2707, P2701, P2601, P2501, P2401, P2301,
P2201, P2101, and P2001
DESCRIPTION: As part of EER Phase III, Bercha carried out
focused R&D leading to the development of performance-based
standards and guidelines for the offshore industry. Project
P2701 is the continuation of and completion of the work started
under project numbers P2601 and P2501.
Please refer to P2501
for more detailed information. Further work has been conducted
under P2707. |
2006 |
To Top of Page |
P2615
|
ICETECH 2008 INTERNATIONAL CONFERENCE & EXHIBITION on
Performance of Ships and Structures in Ice
CLIENT: n/a DATE: July 20-23, 2008
DESCRIPTION:
ICETECH-08 took place July 20-23, 2008 in Banff, Alberta, Canada.
Dr. Bercha chaired the Organizing Committee for this
international conference and exhibition on performance of ships
and structures in ice. The theme and subject areas of the conference complemented
and derived impetus from contemporary rapid growth of development
and associated resurgence of interest in oil and gas exploration and
production in Arctic offshore regions. Updated information
and conference details were available on the conference website. |
P2614
|
ASSESSMENT
OF CONSEQUENCES AND RISKS ASSOCIATED WITH SOUR GAS FACILITIES
LOCATED IN WEBBER GREENS NEIGHBOURHOOD
CLIENT: Lewis Estates Communities Inc. DATE: 2006
DESCRIPTION: This study was carried out jointly by DML Leahey &
Associates Limited and the Bercha Group. This report
specifically assessed operations at Advantage Energy Income
Trust’s Battery at 07-31-052-25W4 and associated pipelines,
wells and satellite batteries as they relate to sour gas
production. The 7-31 Battery, previously operated by Suncor
Inc., is situated in the Lewis Farms Area about 100 m north of
the proposed Webber Green Land Development. The assessment
considered hazards, consequences and risks pertaining to the
uncontrolled release of the gas in terms lethality and
nuisances. It evaluated the risks attending the toxic effects of
the gas as well as potential harm associated with fires and
explosions. The potential for odour nuisances was also
addressed. |
P2613 |
REVIEW OF PIPELINE CORRIDORS AND PROPERTY DEVELOPMENT
CLIENT: Wintergreene Estates DATE: 2006
DESCRIPTION: An investigation of public risks associated with
the development of Wintergreene Estates as proposed adjacent to
existing pipeline corridors was carried out. The assessment
involved quantitative risk modeling for various pipeline
parameters utilizing Bercha Group proprietary consequence and
risk integration models, and review of guidelines relating to
development in the vicinity of pipeline systems. This work built
on P2012. |
P2611
|
DEEP PANUKE OFFSHORE
AND ONSHORE RISK ANALYSIS
CLIENT: EnCana DATE: 2006
DESCRIPTION: The work entailed a quantitative risk analysis of
the onshore NPS20 high pressure natural gas pipeline, as well as
consequence analyses for sub-sea facilities, including the sour
gas injection pipelines, offshore production flowline, and NPS20
export line. The detailed quantitative risk assessment of the
onshore facilities was presented to the National Energy Board in
support of EnCana’s application for development and expert
testimony was provided at the NEB hearings (March 2006) in
support of the application.
|
|
Figure 1: As
shown, the landfall area is characterized by sparsely
treed terrain of medium gradient |
Figure
2: The inland area is interspersed with gravel roads
left over from the mining operations that were conducted
in the Goldboro area some decades ago. |
|
P2610 |
ICETECH
2006 INTERNATIONAL CONFERENCE & EXHIBITION WRAP UP
CLIENT: n/a DATE: July 16-19, 2006 (see also P2315)
DESCRIPTION: Dr. Bercha chaired the Organizing Committee for
ICETECH 2006. The conference positively exceeded expectations
with over 150 delegates attending, full sponsor and exhibitor
subscription, 60 technical papers presented, and an exciting
social and accompanying persons program. The presentation
program, the events, the setting, and the attendees made it a
very enjoyable and technically sound event! The technical
program each day began with two plenary papers, including: the
northern sea route; the changing Arctic; evolution of offshore
safety regulations and practices; naval architecture
developments for the Arctic; escape, evacuation, and rescue (EER);
and current major offshore Arctic projects. Workshops on EER and
the future of the Arctic rounded out the technical program.The
conference was such a success that delegates requested a repeat
in 2008, rather than the originally planned 2010. ICETECH 2006
Post-Conference Proceedings are available in CD format via
www.icetech16.org. |
P2609.1 |
QUANTITATIVE RISK RANKING OF SOUTHERN EXTENSION NATURAL GAS
PIPELINE
CLIENT: ATCO Pipelines DATE: 2006
DESCRIPTION: The work entailed an interactive development (with
ATCO engineers) of a feasible risk ranking system for all ATCO
natural gas transmission lines. The ranking system, once
developed, was applied to selected natural gas lines, including
the southern extension NPS8 pipeline running from the Edmonton
area, south, to the City of Red Deer. The risk ranking took into
consideration existing pipeline data, pipeline integrity
characteristics, and population and property exposure. |
P2609.2 |
QUANTITATIVE RISK ANALYSIS OF SOUTHWEST EDMONTON PIPELINE CORRIDOR
CLIENT: ATCO Pipelines DATE: 2006
DESCRIPTION: ATCO
Pipelines (ATCO) retained Bercha Engineering Limited (Bercha) to
conduct a quantitative risk analysis of the risks from the ATCO
pipeline in southwest Edmonton to surrounding populated
locations. The proximity of the pipelines to existing and
proposed high density locations, as well as to parallel crude
oil Pembina pipeline, motivated ATCO to carry out this risk
analysis.
A quantitative risk analysis was carried out to evaluate individual
risk levels associated with the ATCO
pipeline. A quantitative risk analysis includes the following
principal steps:
Specifically, the risk results include the evaluation of
individual risk at the pipeline location, together with its
variation over the subject location, and a detailed analysis of
mitigation measures. |
P2608 |
NEW BRUNSWICK PIPELINE QUANTITATIVE RISK ANALYSIS
CLIENT: Emera DATE: 2006
DESCRIPTION: In the project P2509, Bercha conducted a
quantitative risk analysis of the preferred route for the Emera
Pipeline (earlier proposed by M&NP). This risk assessment was
subjected to detailed scrutiny by various interveners, including
Friends of Rockwood Park, as well the City of Saint John First
Responders including the fire department and other emergency
responders. Under the current project, Bercha provided liaison
activities with the First Responders, including numerous
meetings, a series of short reports providing explanations and
clarifications, and other informal communications. In
preparation for the
National Energy Board (NEB) hearings held in November 2006, in
Saint John, Bercha provided responses to numerous government,
intervener, and Board information requests (IR’s), and assisted
Emera in the preparation of their NEB hearing evidence. Finally,
Bercha experts participated on a hearing panel during the NEB
hearing for five days, and subsequently followed up with two
undertakings. The work was particularly challenging due to the
high level of concern regarding public safety associated with
the proposed route passing partially through the City of Saint
John.
|
The proposed pipeline
route was of concern to local residents, as described on
page B3 of the New Brunswick Telegraph-Journal (November
15, 2006). |
|
P2607 |
ANALYSIS OF RISKS TO PROPOSED COCHRANE RESIDENTIAL DEVELOPMENT FROM
ADJACENT HYDROCARBON PIPELINES
CLIENT: Timko Developments Limited DATE: 2006
DESCRIPTION: Timko Developments Limited (Timko) retained Bercha
Engineering Limited (Bercha) to conduct a quantitative risk
analysis of the risks from hydrocarbon pipelines to Timko’s
proposed development on Lot 2, Block 1, Plan 9411880 located in
south west Cochrane. The proximity of the pipelines to the
proposed high density residential complex has motivated Timko to
carry out this risk analysis.
A quantitative risk analysis was carried out to evaluate individual
risk levels associated with the proposed development from the
adjoining pipelines. A quantitative risk analysis includes the
following principal steps:
Specifically, the risk results include the evaluation of
individual risk at the proposed development location from each
of the pipelines individually, in pairs, and the combined risk
from all four pipelines, together with its variation over the
subject location. |
P2606
|
QUANTITATIVE RISK ANALYSIS FOR CALGARY RING ROAD
CLIENT: Alberta Infrastructure and Transportation (AIT)
DATE: 2006
DESCRIPTION: The southwest Calgary ring road is proposed to pass
through the drainage basin for the Glenmore Reservoir, which is
the principal source of drinking water for the City of Calgary.
Concern regarding the potential for spills of dangerous goods
(DG) from traffic accidents on the proposed ring road predicated
a need for a quantitative risk assessment of such spills. The
QRA entailed the analysis of traffic patterns, historical DG
accident causes and frequencies, derivation of ring road
specific accident causes, frequencies and volumes, and a risk
analysis considering the road drainage system and containment
ponds to quantify the probabilities and volumes of DG spills
that may reach the Glenmore Reservoir. The results indicated
that, due largely to the containment systems proposed, there is
an extremely low probability that spills can reach the Glenmore
Reservoir, with a probability of a significant spill (in the
order of 10 bbl) reaching the reservoir over a period of 100
years being less than 1%. |
P2605 |
HAZID OF WELL DRILLING OPERATION IN LIBYA
CLIENT: Adams Pearson and Associates DATE: 2006
DESCRIPTION: Hazard identification (HAZID) was facilitated by
Bercha for the logistic and drilling operations associated with
a development well in a frontier region in Libya. The primary
purpose of the HAZID was to provide guidance to operational and
design personnel on hazard foci and develop hazard mitigation
and risk mitigation plans to assure successful completion of the
well. The well was subsequently successfully completed. |
P2603 |
GENERAL REGULATORY ADVICE
CLIENT: ATCO Pipelines DATE: 2006
DESCRIPTION: Bercha, together with a legal firm, reviewed the
significance of various CSA Z662 Class provisions, and assisted
in a pragmatic interpretation of these within the context of
ATCO natural gas transmission lines in different class
locations. |
P2602 |
UNDER BALANCED DRILLING INDUSTRY GUIDELINES
CLIENT: Canadian Association of Drilling Contractors (CAODC)
DATE: 2006
DESCRIPTION: Bercha assisted in the development of an under
balanced drilling industry recommended practice (IRP) by
facilitating various hazard identification sessions together
with members of the IRP-24 sub-committee. |
P2601 |
ESCAPE,
EVACUATION, AND RESCUE (EER) R&D - PHASE III-B
CLIENT: Transportation Development Centre, Transport Canada DATE: 2006
Linked projects:
P2707, P2701, P2601, P2501, P2401, P2301,
P2201, P2101, and P2001
DESCRIPTION:
As part of EER Phase III, Bercha carried out focused R&D leading
to the development of performance-based standards and guidelines
for the offshore industry. Project P2601 is the continuation of
and completion of the work started under project number P2501.
Please refer to P2501 for more information. |
2005 |
To Top of Page |
P2509 |
QUANTITATIVE RISK ANALYSIS OF THE PROPOSED BRUNSWICK NATURAL GAS
PIPELINE
CLIENT: Maritimes and Northeast Pipeline on subcontract to
Jacques Whitford Limited DATE: February 2006
DESCRIPTION:
Maritimes and Northeast Pipeline (M&NP) retained Bercha
International Inc. (Bercha) to perform a quantitative risk
analysis of the proposed natural gas transmission pipeline
linking the CanaportTM Liquefied Natural Gas (LNG)
terminal in Saint John, New Brunswick to the US border exit
point. The proposed pipeline is called the Brunswick Pipeline,
and would be owned and operated by Maritimes and Northeast
Pipeline. The goal of the work was to evaluate the risks
associated with operating the proposed pipeline, and, if
required, to identify any appropriate mitigative measures to
minimize the risks to acceptable levels. The work supports
M&NP’s development application that was to be submitted before
the National Energy Board (NEB), as well as to provide risk
management information in support of M&NP risk management
programs.
|
|
Figure 1:
Existing M&NP Saint John Lateral posting including
operator toll free number |
Figure
2: West of the City of Saint John; the
proposed corridor would pass through rural surroundings |
|
P2508 |
QUANTITATIVE RISK ANALYSIS OF THE
PROPOSED SHELL SIBBALD DEVELOPMENT
CLIENT: Shell Canada Limited DATE: 2006
DESCRIPTION:
Shell Canada Limited proposed to drill a sour gas well, and – if
the well is successful in terms of production – to construct and
operate a gathering line for a distance of approximately 4 km
north of the well location. Accordingly, Shell Canada Limited
(Shell) retained Bercha Engineering Limited (Bercha) to perform
a quantitative risk analysis of the proposed Shell Sibbald
Development (SSD). The work was intended to support Shell’s
energy development application to be submitted to the Alberta
Energy and Utilities Board (EUB), as well as to provide risk
management information in support of Shell risk management
programs. |
P2507 |
Alternative Oil Spill Occurrence Estimators and their
Variability for the Chukchi Sea – Fault Tree Method
CLIENT: United States Department of the Interior, Minerals
Management Service DATE: ongoing (2006)
DESCRIPTION:
Oil spill occurrence estimates were generated for several expected
future oil and gas development scenarios (including exploration,
production, and abandonment) in the Chukchi Sea Offshore
Continental Shelf (OCS) lease sale regions. Because sufficient
historical data on offshore oil spills for these regions do not
exist, an oil spill occurrence model based on fault tree
methodology was developed and applied. Using the fault trees,
base data from the Gulf of Mexico including the variability of the data, were modified and augmented to
represent expected Arctic offshore oil spillage frequencies.
Three principal spill occurrence indicators, as follows, were
quantified:
§
Spill frequency
§
Spill frequency per barrel produced
§
Spill index, the product of spill size and
spill frequency
These
indicators were quantified for the following spill sizes:
§
|
Small
(S): |
≥50 to
<100 bbl |
§
|
Medium
(M): |
≥100 to
<1,000 bbl |
§
|
Large
(L): |
≥1,000
to <10,000 bbl |
§
|
Huge
(H): |
≥
10,000 bbl |
Quantification was carried out for each future year for one
principal Chukchi Sea
development scenario, with a range of development parameters, in
duration up to 39 years. In addition, a comparative scenario for
non-Arctic locations was formulated and analyzed for oil spill
occurrence. Generally, it was found that the non-Arctic spill
indicators were likely to be significantly higher than those for
similar scenarios in the Arctic. The computations were carried out using a Monte Carlo process
to permit the inclusion of estimated uncertainties in the base
and scenario data and Arctic effects. A wide range of details
for each scenario was generated, including the following:
§
Expected time history of spill occurrences
over the scenario life.
§
Spill occurrence variations by spill volumes
in the above spill size ranges.
§
Spill occurrence variation by spill cause such
as boat anchoring or ice gouging.
§
Spill occurrence contribution from each main
facility type, including pipelines, platforms, and wells.
§
Comparison of spill occurrence predictions
between Arctic and non-Arctic scenarios.
§
Life of field averages of spill occurrence
estimators.
§
The variability in the results due to
uncertainties in the inputs was expressed as cumulative
distribution functions and statistical measures.
In the final report, a detailed description of the methodology,
results, and conclusions and recommendations was given, as well
as a section on limitations of the study.
|
P2506 |
EXPERT TESTIMONY AND TECHNICAL SUPPORT
CLIENT: Confidential Client DATE: 2005
DESCRIPTION: Bercha assisted the law firm retained by a
confidential client in
the development of technical evidence for various aspects of the
client's pipeline integrity and operation. The work covered
interpretations of regulatory provisions in the United States
and international regime as well as review of specific operating
and design procedures. |
P2505
|
ANALYSIS OF RISKS TO PROPOSED
LAND DEVELOPMENT IN SOUTH WEST REGINA FROM EXISTING NATURAL GAS
PIPELINES
CLIENT: Stantec Consulting, Ltd. DATE: 2005
DESCRIPTION: Stantec Consulting Ltd. (Stantec) retained Bercha
Engineering Limited (Bercha) to conduct a quantitative risk
analysis of the natural gas pipeline network relative to the
proposed land development. The City of Regina required a risk
assessment report on possible risks from the pipelines to the
proposed development in support of the permitting process. |
P2504
|
RED DEER PIPELINE SYSTEM OPTIMIZATION
CLIENT: ATCO Pipelines Limited DATE: 2005
DESCRIPTION: Bercha assisted ATCO in the development and
application of a system for ranking the rehabilitation priority
of its pipelines. The work included a helicopter and walkabout
inspection of the Southern Extension pipeline and meetings
with ATCO personnel to discuss possible risk-based approaches to
the rehabilitation ranking. |
P2503
|
FAULT TREE
ANALYSIS OF ALBERTA SOUR GAS FACILITIES
CLIENT: Alberta
Energy and Utilities Board DATE: March 2006
DESCRIPTION:
The Alberta Energy and Utilities Board (AEUB) required a
comprehensive frequency analysis of operating sour gas
facilities throughout the province. By sour gas facilities under
this project, are meant all sour gas well drilling, production
well, pipeline, and other facility operations. Other facilities
include those not covered by the three specified types of
operations and included, but are not restricted to, items such
as above grade metering, pig trap, valve, compressor station,
and gas plant facilities. These latter facilities are referred
to herein as “Other Facilities”. |
P2502 |
HIGH CONSEQUENCE AREAS IDENTIFICATION
AND RANKING
CLIENT: Confidential Client DATE: 2005
DESCRIPTION: In risk assessment
two principal aspects are addressed - the probability of
occurrence and the magnitude of adverse consequences of an
undesired event such as an oil spill. Regardless of probability
of occurrence, if the consequences are high, such as multiple
fatalities, the location where this can happen is termed a High
Consequence Area (HCA). The client has undertaken to
identify all such areas along its pipeline in order to undertake
mitigation of these high consequences through appropriate
mitigation methods. In this study, the following principal areas
are addressed:
- A working definition of
HCAs is developed
- A methodology for
identification of the HCAs is defined
- An identification of
HCAs for the pipeline is conducted
- Approaches to HCA mitigation are developed.
|
|
Figure 1:
HCAs were identified in the study area, utilizing maps,
census information, and other data. |
Figure 2:
Possible adverse impacts to population, environment, and
commercial navigation were considered in relation to the
study area. |
|
P2501
|
ESCAPE,
EVACUATION, AND RESCUE (EER) R&D - PHASE III-B
CLIENT: Transportation Development Centre, Transport Canada
DATE: 2004-2006
Linked projects:
P2707, P2701, P2601, P2501, P2401, P2301,
P2201, P2101, and P2001
DESCRIPTION: As part of EER Phase III, Bercha will carry out
focused R&D leading to the development of performance-based
standards and guidelines for the offshore industry.
The goal of the program is to develop a prioritized and
focused R&D program specific to EER, which will lead to the
implementation of performance standards for the offshore
industry. The Canadian Petroleum Boards have indicated that they
will administer the Standards and implement them as Board
Guidelines under the Accord Act. The Boards support the
continuation of the EER research program and in parallel, the
Boards, in co-operation with industry, have initiated a process
to review the draft standard by the regulator. The results of
this work will provide the rationale for the Regulators to
evaluate design standards for EER systems employed in the
offshore industry. The performance-based guidelines will address
all relevant Human Factors/Ergonomic considerations with respect
to the usability of the systems, training and other associated
elements.
Current work which is underway or has been carried out to
support the R&D program under P2501, Phase III-B, includes the following:
-
Further
development of the EER simulator, the risk and performance
tool (RPT). The risk and performance tool (RPT) was
developed for the assessment of reliability and performance
characteristics of different escape, evacuation, and rescue
(EER) components and their integrated performance as an EER
system for different offshore installations and operating
conditions. The Risk and Performance Tool (RPT), uses an
optimal combination of risk analysis and simulation.
Essentially, the RPT simultaneously models the evolution of
risks and times of performance for each of the activities,
operations, and components, comprising an EER process under
given operational, environmental, and accident conditions.
This document gives a detailed description of the
methodology utilized in the development of the RPT including
the basis for input data, algorithms, and results. Several
typical offshore EER configurations for different conditions
are analyzed and representative results are presented.
-
Intermediate drafting of integrated ice and open water
Canadian offshore petroleum installations escape,
evacuation, and rescue (EER) performance-based standards.
-
Details
of the research carried out throughout the EER Research
Project since Year 2000 by Bercha were reported in a series
of 29 technical reports. These research results have been
integrated into the current version of the RPT, and may
generally be summarized as the earlier results with
enhancements and refinements carried out under Phases I and
II, and the Phase III results. The earlier results have now
been extended to cover ice and cold regions performance, and
although the basic research was carried out under Phases I
and II, they have also been incorporated in the Integrated
Ice and Open Water RPT. The principal areas of these early
results generally fall under human and mechanical
performance.
EER R&D
projects Phases I, II, and III-B are described under project
numbers: P2001, P2101,
P2201, P2301, and
P2401. Photos below are from all Phases of
the project.
Click on thumbnails to
view enlarged images.
|
|
|
|
|
|
Figure 1: RPT
opening screen (Phase III-B). |
Figure 2: Sample RPT graphical output. |
Figure 3: Human Factors studies were conducted for
RPT input and validation (Phases 1-3). |
Figure 4: Trials staged at Survival Systems'
Skyscape facility in Dartmouth, Nova Scotia in November
2000. |
|
|
|
|
Figure 5: In February of 2001, further trials were
staged to assess the effects of winter weather.
|
Figure 6: TEMPSC evacuation trials were conducted
using the Galaxy II jack-up rig in Halifax Harbor, in
January 2004. |
Figure 7:
Stakeholder information workshops were staged. |
Figure 8: EER Task Force members worked together as
part of the Standards development process. (F. Bercha, C. Brooks, and F. Leafloor shown here during
a meeting in Dartmouth, Nova Scotia). |
|
|
|
|
Figure 9: Various evacuation systems were studied
for incorporation into the RPT. The PROD system is
an adaptation of the davit-launch system intended to
give the lifeboats an impetus away from the platform.
The PROD boom is shown here. |
Figure 10: The PROD system comprises a long,
tapered, flexible GRP boom attached at right angles to
the offshore structure by a hydraulic hinge. The boom
may be a single length one-piece construction or
hydraulically articulated to reduce storage space. The
boom’s outboard end is connected to the bow of the
lifeboat by a fixed-length wire tag line incorporating
an automatic release coupling. |
Figure 11: The
Seascape system was analyzed and incorporated into the
RPT. |
Figure 12: The Seascape system consists primarily of
a launch structure and a TEMPSC. The launch structure is
a hinged arm, which places the TEMPSC on the water
surface. |
|
|
|
Figure 13: ARKTOS
system was incorporated into the RPT. Here ARKTOS is
seen operating in broken ice. |
|
Figure 14: Instrumented full-scale lifeboat in ice
test results: light ice pack, March 2003, Northumberland
Strait. |
|
2004 |
To Top of Page |
P2414 |
SAKHALIN
2 OFFSHORE SAFETY PLAN
CLIENT: SHELL INTERNATIONAL E&P PROJECTS
DATE: 2004
DESCRIPTION: The reliability of Escape Evacuation and Rescue
from offshore facilities is dependent on the time and spatial
location, availability, and capability of appropriate EER
personnel, procedures, and equipment in the context of
environmental, operational, and accident credible configurations
associated with a given project. For the offshore component of
the Sakhalin Phase 2 LNG project producing almost 2,000 MMscf
per day, a key variable that can be controlled is the location
and availability of standby vessels in the vicinity of the
offshore production and the terminal tanker loading facilities.
Using the Bercha Probabilistic EER Software (PEERS) various
configurations of safety systems and procedures were simulated
for credible accident and environmental conditions including ice
conditions to define an envelope of optimal EER configurations
giving high reliabilities. |
P2411 |
INTEGRATED QUANTITATIVE RISK ASSESSMENT OF ONSHORE PIPELINE
CLIENT: OCENSA Pipelines DATE: 2004
DESCRIPTION: Bercha Group performed an integrated quantitative
risk assessment (QRA) of an existing crude oil pipeline from
Cusiana to Coveñas. The general goal of the work was to
evaluate the integrated risks associated with operating the
pipeline throughout representative regions along its route. The
work was generally intended to provide risk management
information in support of pipeline integrity and safety programs
for the pipeline. |
P2410
|
WELL
DRILLING
CLIENT: Law Firm DATE: 2004
DESCRIPTION: Review of Vaquero sour gas well drilling
application on behalf of intervenors. |
P2409
|
QUANTITATIVE RISK ASSESSMENT OF THE SHELL CAROLINE INTERCONNECT
PIPELINE
CLIENT: Shell Canada Limited DATE: 2004
DESCRIPTION: Bercha Group performed a risk assessment of the
proposed Caroline interconnect pipeline system, with focus on
risks from the segment adjacent to section 7-34-7W5. The goal of
the work was to analyze and evaluate the risks at the above
location associated with operating the proposed interconnect
pipeline. |
P2408
|
CRUDE OIL
PIPELINE INCIDENT, REGULATION, AND PRACTICE REVIEW
CLIENT: Confidential Client DATE: 2004
DESCRIPTION: A confidential review of information relevant to
the location of hydrocarbon pipelines, with specific emphasis on
crude oil pipelines, in relation to urban centres of population
was carried out. |
P2407
|
ALTERNATIVE OIL SPILL OCCURRENCE ESTIMATORS FOR THE BEAUFORT SEA
- FAULT TREE METHOD - Extension to Include Variability of
Non-Arctic Effects
CLIENT: U.S. Department of the Interior, Minerals Management
Service, Alaska Outer Continental Shelf Region DATE: 2005
DESCRIPTION: Progress Report #1 was issued March 7, 2005,
providing preliminary comprehensive and possibly final results
for oil spill occurrence indicator (OSOI) from Monte Carlo
calculations for Sale 1 and Sale 2. The method used was a combination of the proposed
approaches #1 and #2, essentially utilizing high level
distributions from historical data under approach #1, and
refining them using approach #2 by adjusting the confidence
intervals for causal distribution components, as required for
expected conditions. Spill volume distributions within each
spill size category were also used.
|
|
Figure 1: Winter
sea ice on the Beaufort Sea
(image courtesy of NOAA:
www.photolib.noaa.gov) |
Figure 2: Sunset
on the Beaufort
(image courtesy of NOAA:
www.photolib.noaa.gov) |
|
P2406 |
SOUR GAS
BLOWOUT IGNITION STUDY
CLIENT: Alberta Energy and Utilities Board (EUB) DATE: 2004
DESCRIPTION: The requirements for blowouts occurring during the
drilling of critical sour gas wells is the ignition of the
blowout in order to reduce the risk from H2S through combustion
to SO2. However, there is not currently a clear understanding of
exactly how long it will take and how reliable it will be to
ignite the blowout under real life threatening conditions.
Bercha has developed software that takes into account human
performance under life threatening conditions in its studies of
onshore and offshore emergencies. Under this contract, Bercha
has been retained to simulate both the time and the reliability
of ignition of sour gas blowouts under different weather and
operational and accident conditions. Results will be used as
part of the requirements for development of emergency planning
zones at critical sour gas wells. |
P2405 |
QUALITATIVE RISK ASSESSMENT OF HALIFAX HARBOUR NATURAL GAS
PIPELINE CROSSING OPTIONS
CLIENT: Heritage Gas DATE: 2004
DESCRIPTION: A risk assessment was carried out in support of
Heritage Gas feasiblity studies on construction of a pipeline
connecting the Dartmouth side of Halifax Harbour (where natural
gas is supplied from the Maritimes and Northeast Pipelines
Halifax Lateral), across the Halifax Harbour Narrows to
terminate on the Halifax Peninsula within the City of Halifax.
Preliminary estimates indicated that an NPS 10 pipeline with an
MOP of 275 psig, approximately 1 km in length, would provide the
required capacity.
The Bercha risk assessment focused on two crossing options:
a. Under-Harbour Crossing using Horizontal Directional
Drilling (HDD);
b. Suspended Bridge Crossing (SBC) using the Macdonald
Bridge.
The general objective of the work was to provide Heritage Gas
with a comprehensive but high level and qualitative picture of
the risk of exposure that would be encountered both during
construction and subsequent pipeline operation for the HDD and
the SBC crossing options. The assessment addressed the risks in
two distinct phases; namely, the construction phase and the
operating phase.
|
|
Figure 1: The Angus L. MacDonald Bridge |
Figure 2: Bottom view of the suspended span on Dartmouth
side. |
|
P2404 |
REVIEW OF
RISK AND ENVIRONMENTAL IMPACT ASSESSMENTS FOR THE PROPOSED
CANNONBALL DEVELOPMENT
CLIENT: Environmental Management Authority, Government of
Trinidad and Tobago DATE: 2004
DESCRIPTION: Bercha International Inc. was retained through
Jacques Whitford for the review of documents supporting an
application to the Environmental Management Authority of the
Government of Trinidad and Tobago. This application was made by
British Petroleum for a Certificate of Environmental Clearance (CEC)
to develop the oil and gas reserves of the Cannonball Field that
is located in the South East Galeota Block, 60km offshore the
East Coast of Trinidad. Essentially, the proposed project would
contain both offshore and onshore segments. The offshore segment
would consist of a proposed wellhead protector platform, and a
new 26” pipeline running from the platform to an existing
pipeline to an onshore facility. The onshore development would
consist of a modification of an existing onshore gas processing
facility to increase its capacity.
Bercha’s work consisted of reviewing the hazard and
consequence assessment, a quantitative risk assessment, and an
environmental impact assessment (EIA)), and assessing the
validity and appropriateness of the methodology, running check
calculations, and making recommendations in relation to the
methodology and in relation to the results. The standards
applied in the review were those standards normally applied to
similar developments in western countries such as Canada and the
USA. Generally, the methodology of the onshore facility QRA is
compatible with existing standards, while no QRA was done for
the offshore segment. The EIA is compatible with standards for
preliminary EIA with respect to public and environmental risks.
|
P2403 |
QUANTITATIVE RISK ASSESSMENT OF THE SHELL MOOSE MOUNTAIN TO
JUMPING POUND INTERCONNECT PIPELINE
CLIENT: Shell Canada Limited DATE: 2004
DESCRIPTION: Bercha performed a risk assessment of Shell’s
proposed Interconnect Pipeline (IP) system, from the Moose
Mountain Compressor Station (MMCS) to the Jumping Pound Gas
Plant (JPGP). The goal of the work was to evaluate the risks
associated with operating the proposed interconnect pipeline.
The work was used to support an EUB application for the
construction of the proposed interconnect pipeline and assist in
the Shell risk management program development for the proposed
system.
A quantitative risk assessment (QRA) was conducted
including consideration of the engineering and operational
parameters of the proposed project within the context of the
current location. The primary focus of the risk assessment was
quantification of acute risks to the public. The key results of
the work were estimates of individual and collective risks to
the public. Both individual and collective risks were found to
be sufficiently low to be considered acceptable. |
P2402 |
RISK
ASSESSMENT OF PROPOSED ATCO PIPELINE RELOCATION
CLIENT: ATCO Pipelines, Edmonton, Alberta DATE: 2004
DESCRIPTION: ATCO Pipelines proposed to relocate an NPS-4
high-pressure sweet natural gas pipeline along a 6-km segment of
Highway 40 in the vicinity of the Smoky River Mine. A risk
analysis was carried out to support engineering and management
decisions and the application to the AEUB for licensing of the
project.
The principal results of the risk assessment were
individual specific risk (ISR) transects describing the risks
from the proposed pipeline to public and worker personnel in its
vicinity. Risk mitigation measures were also investigated
qualitatively, and several key risk mitigation measures were
recommended. |
P2401 |
ESCAPE,
EVACUATION, AND RESCUE (EER) R&D - PHASE III-A
CLIENT: Transportation Development Centre, Transport Canada
DATE: 2004-2005
Linked projects:
P2707, P2701, P2601, P2501, P2401, P2301,
P2201, P2101, and P2001
DESCRIPTION: As part of EER Phase III, Bercha will carry out
focused R&D leading to the development of performance-based
standards and guidelines for the offshore industry.
The goal of the program is to develop a prioritized and
focused R&D program specific to EER, which will lead to the
implementation of performance standards for the offshore
industry. The Canadian Petroleum Boards have indicated that they
will administer the Standards and implement them as Board
Guidelines under the Accord Act. The Boards support the
continuation of the EER research program and in parallel, the
Boards, in co-operation with industry, have initiated a process
to review the draft standard by the regulator. The results of
this work will provide the rationale for the Regulators to
evaluate design standards for EER systems employed in the
offshore industry. The performance-based guidelines will address
all relevant Human Factors/Ergonomic considerations with respect
to the usability of the systems, training and other associated
elements.
Current work which is underway or has been carried out to
support the R&D program under Phase III-A includes the following:
-
Full-scale single point lifeboat evacuation tests utilizing
the Galaxy II semi-submersible. The tests were carried out
with the full cooperation of Global Santa Fe and
participation of the Galaxy II crew in launches and
recoveries of lifeboats in a location in Halifax Harbour.
-
Reliability analysis of the proposed Seascape system. The
work has consisted of participation in the Seascape launch
trials, review of data and reports, and analysis of the
reliability of this system, and incorporation into the risk
and performance tool, a computer simulator of EER.
-
Expansion of the EER simulator, the RPT, to incorporate
various evacuation systems, as well as specific systems
including Seascape and ARKTOS.
-
Expansion of the RPT to cover EER in ice covered waters for
sub-Arctic and Arctic conditions.
EER R&D
projects Phases I, II, and III-B are described under project
numbers: P2001, P2101,
P2201, P2301, and
P2501. |
|
|
2002 |
To Top of Page |
P2204 |
STATISTICAL AND NUMERICAL ANALYSIS OF OIL SPILL PERSISTENCE ON
OPEN WATER
CLIENT: On Subcontract to: S.L. Ross Environmental Research
Ltd., Ottawa, Ontario, Canada DATE: 2003
For: U.S. Department of the Interior, Minerals Management
Service, Alaska Outer Continental Shelf Region
DESCRIPTION: This project was carried out and reported by Bercha
International Inc. (Bercha), on subcontract to S.L. Ross
Environmental Research Limited (SLR) the prime contractor to MMS
for the project “Persistence of Crude Oil Spills on Open Water”.
The objective of the project is to study the relationships
between spill persistence and spill size, and to refine the
spill persistence and size relationship in terms of other
variables while providing possible predictive relationships such
as cumulative distribution functions.
Essentially, the approach utilized by Bercha following receipt
of the spill data from SLR, was to inspect the data for possible
approaches, identify a series of statistical and numerical
methods which could be used to study the relationships among the
principal data variables, apply these methods, select the most
statistically significant approaches, and further utilize these
approaches to generate certain predictive algorithms and
results. |
P2203 |
RISK AND
COST BENEFIT ANALYSIS OF UTILITY CROSSINGS OF ROADS
CLIENT: Alberta Transportation DATE: 2002
DESCRIPTION: As part of the decision making process on the
possible requirement of casings on municipal utility pipes
crossing roadways, a risk and cost benefit analysis input has
been identified as a desirable input by Alberta Transportation.
Generally, such a risk and cost benefit analysis will take into
consideration the costs of initial installation and replacement,
durability (lifetime), and unscheduled failures during the
lifecycle and associated costs of repairs. All costs will
include estimates of associated disruption costs. In relation to
unscheduled failures, cost of consequences will include the
repair of the utility, repair of possible damage to the roadbed
and surface, and the costs of any traffic disruption including
temporary traffic management and possible road closure.
The general approach to the work was to construct a
risk-economic model which gives cost expectations in current
dollars at their time of occurrence, and discounts them
utilizing a net (of inflation) discount rate to present value.
|
P2202 |
PUBLIC
SAFETY ASSESSMENT OF TWO ALTERNATE SUBDIVISION CONFIGURATIONS IN
THE VICINITY OF TCPL NATURAL GAS TRANSMISSION PIPELINES
CLIENT: TransCanada Pipelines DATE: 2002
DESCRIPTION: An assessment of the risk and safety implications
was carried out for two alternative subdivision configurations
in the vicinity of the subject pipeline. The study includes: (1)
review of pertinent information and data, (2) conduct of a
quantitative accident probability analysis, and (3) Option
recommendation based on study results. The two subdivision
configuration options considered were: (a) Option 1 -
TransCanada ROW located in stand-alone corridor behind housing,
and (b) Option 2 - TransCanada ROW located in residential road
median in front of housing. The methodology included the use of
fault trees. |
P2201
|
ESCAPE,
EVACUATION, AND RESCUE (EER) R&D PHASE 2
CLIENT: Transportation Development Centre, Transport Canada
DATE: 2002 - 2003
Linked projects:
P2707, P2701, P2601, P2501, P2401, P2301,
P2201, P2101, and P2001
DESCRIPTION: Work initiated under P2101 is the foundation for
this project. The project goal is to develop performance-based
standards (PBS) for escape, evacuation, and rescue (EER) for
Canadian East coast offshore oil and gas installations.
Supporting research is an important part of the Standards
development process. Bercha provides facilitation, expert
personnel, and coordination of a team of offshore safety, human
factors, marine operations, and medical experts. The PBS
development program is carried out under the guidance of a
steering committee, which includes representatives of Transport
Canada, Transportation Development Centre, Canada-Nova Scotia
Offshore Petroleum Board, Canada-Newfoundland Offshore Petroleum
Board, Canadian Association of Petroleum Producers, and other
experts. Bercha is responsible for the drafting and editing of
the guidelines and organizing their development, stakeholder
consultation, and promulgation. Supporting research projects
explore human performance under extreme conditions and
full-scale performance evaluation of specialized evacuation
systems. Since experimental data are not available nor can be
generated for performance under life threatening conditions, a
compendium of all accident anecdotal data, applicable error rate
and performance human factors data, and risk and reliability
documentation is assembled, reviewed, and transformed into
parameters applicable to the operation of the computerized EER
probabilistic simulator. Specific systems targeted for evaluation
are the Seascape 2000 proprietary system and the PROD or
Preferred Orientation and Deployment lifeboat launch system.
|
2001 |
To Top of Page |
P2112 |
CAROLINE WELL TIE-IN QRA
CLIENT: Shell Canada Resources Limited DATE: 2002
DESCRIPTION: Shell Canada proposes to drill, complete, and
produce a well through a gathering system in the Caroline Gas
Fields. The work consisted of a quantitative risk assessment of
the proposed wellhead facilities and tie-in gathering system for
the sour gas. A detailed risk model capable of simulating the
variation in causal factors associated with these specific
developments was prepared and applied to estimate risks to the
public from the proposed project. |
P2111 |
GAS
DEMAND COINCIDENCE FACTOR ANALYSIS
CLIENT: ATCO Gas DATE: 2001-2002
DESCRIPTION: In previous projects, Bercha studied the
relationships among residential and commercial natural gas
demands within the context of chronological temperature
distributions. Various factors relating to peak demands for one
hour, 4 hours, and days to average demands over appropriate
periods were developed. Utilizing more advanced methodology,
data sets provided by ATCO on various demand parameters were
reviewed and algorithms for relating hourly and other period
demands to average demands for both individual and gate stations
were developed. Models were indexed for northern and southern
Alberta regions. |
P2110 |
NEEPAWA PTH 16 ALTERNATIVE ROUTE RISK ASSESSMENT
CLIENT: NDL DATE: 2001-2002
DESCRIPTION: In order to support planning and management
decisions for alternate configurations of Highway #16 within the
City of Neepawa, a detailed risk assessment for the existing
configuration and alternative configurations was carried out. A
risk model was developed based on five-year historical accident
data for the existing configuration, and extended to consider
two options; namely, a divided highway through town, and the
existing undivided highway together with a bypass route. Risks
were expressed as accident probabilities of three principal
categories; those involving property damage, injuries, and
fatalities. Results were provided in tabular and graphical
format together with recommendations on risk mitigation.
|
|
Figure 1: General Project Location |
Figure 2: View driving on Highway 16 in Neepawa |
|
P2109 |
PANCANADIAN DEEP PANUKE OFFSHORE AND ONSHORE PIPELINE QUANTITATIVE RISK
ANALYSIS
CLIENT: PanCanadian Energy Corporation, Halifax, Nova
Scotia DATE: 2001-2002
DESCRIPTION: PanCanadian Energy Corporation (PanCanadian) is
currently planning the production phase of its Deep Panuke
Offshore Development Project (Deep Panuke), located offshore,
approximately 250 km southeast of Halifax, Nova Scotia. The
project will produce and process natural gas offshore. The raw
gas, which contains H2S, will be sweetened and processed
offshore to a sales gas quality product. Market-ready gas will
be delivered through a subsea and onshore natural gas pipeline
to the Maritimes and Northeast Pipeline (M&NP) mainline near the
SOEI gas plant in Goldboro. PanCanadian’s onshore pipeline is
part of an interprovincial natural gas pipeline system, (the
M&NP line into which it feeds delivers south to the United
States and north to New Brunswick), and therefore falls under
the jurisdiction of the National Energy Board of Canada (NEB).
The QRA was directed at the principal offshore and onshore
pipeline risks associated with different routing alternatives.
|
|
|
Figure 1: General project location |
Figure 2: Landfall area
is characterized by a sparsely treed terrain of medium
gradient sloping inland |
Figure 3: Typical rocky beach |
|
P2108 |
RISK
ASSESSMENT OF PROPOSED ATCO WEED LAKE PIPELINE
CLIENT: ATCO Pipelines, Edmonton, AB DATE: 2001
DESCRIPTION: ATCO Pipelines is proposing to construct a 16”
high-pressure sweet natural gas pipeline known as the Weed Lake
Pipeline (WLP). The pipeline will extend approximately 30 km
from a location east of Langdon, Alberta to the proposed AES
Power Plant site located near Janet, Alberta. A risk analysis
has been carried out to support engineering and management
decisions in relation to the proposed project. The risk analysis
consisted of the following principal steps: (1)
Data Assimilation,
(2) Hazard Scenario Definition, (3) Frequency Analysis, (4) Consequence
Analysis, and Risk Assessment. In the
definition of hazard scenarios, three representative release
sizes were defined, corresponding to a leak, a hole, and rupture
in the pipeline. Associated gas release volumes were estimated
to form a basis for the subsequent consequence modeling.
|
P2107 |
INTERIM PROTOCOLS ON DISPERSION MODELING AND RISK ASSESSMENT
CLIENT: Alberta Energy and Utilities Board DATE: 2001-2002
DESCRIPTION: In this joint project with M.J. Zelensky of Public
Safety and Air Quality Management, the Bercha Group provided
specialized expertise on frequency and risk assessment aspects
of sour gas safety. The project entailed the development of a
protocol applicable uniformly to all sour gas developments in
Alberta, including wells, pipelines, and facilities. A sequence
of steps involving preliminary risk screening followed by
quantitative risk assessment was identified and the primary
benchmarks and methodologies for each of the steps were set out
in the interim protocol together with technical appendices
thereto giving quantitative information on appropriate
parameters to be utilized as inputs to the risk assessments.
|
P2106 |
RAILROAD RIGHT OF WAY PIPELINE EASEMENT STUDIES
CLIENT: Brown, Winfield, and Cansoneri, Attorneys, Union
Pacific DATE: 2002 - ongoing
DESCRPTION: The work under this project consists primarily of
the provision of expert support and testimony by Dr. F.G. Bercha
in regard to engineering issues associated with the construction
and operation of high-pressure petroleum liquids pipelines
within the Union Pacific 1,800-mile railroad right of way. In
1995, when this case was scheduled for trial, Bercha carried out
a number of assessments including constructibility and risk
analysis studies. This case was reopened in 2002, and
supporting evidence and additional testimony by Bercha was
provided thereto. |
P2105 |
RISK
ASSESSMENT OF PROPOSED CNRL LADYFERN PIPELINE
CLIENT: Cimarron Engineering Limited DATE: 2001
DESCRIPTION:
CNRL is proposing to construct a 12-km long 20-inch outside
diameter high-pressure natural gas pipeline adjacent to a road
from a producer hub in British Columbia to an existing TCPL
transmission pipeline in Alberta. A risk analysis was carried
out to support engineering and management decisions in relation
to the proposed project. The risk analysis consisted of the
following principal steps: data assimilation, hazard scenario
definition, frequency analysis, consequence analysis, and risk
assessment. |
P2104 |
RISK
ASSESSMENT OF PROPOSED ATCO SEEP EXTENSION
CLIENT: ATCO Pipelines DATE: 2001
DESCRIPTION: ATCO Pipelines proposed construction of a 24”
high-pressure sweet natural gas pipeline primarily within the
existing Edmonton Transportation and Utility Corridor (TUC). A
risk analysis was carried out to support engineering and
management decisions in relation to the proposed project. The
risk analysis consisted of the following principal steps: data
assimilation, hazard scenario definition, frequency analysis,
consequence analysis, and risk assessment. The results of these
steps were combined, together with estimates of likely exposure
for typical residential and commercial personnel in the vicinity
to produce estimates of risks. Individual risk transects were
generated to illustrate the risks from the proposed pipeline to
residents and commercial personnel in its vicinity. Finally,
levels of ISR for the proposed ATCO SEEP project were compared
to other risks to which individuals are commonly exposed.
|
P2103 |
CONCEPT SAFETY EVALUATION FOR THE ALMA DEVELOPMENT PROJECT
CLIENT: Sable Offshore Energy Inc. (SOEI), Halifax, NS DATE:
2001
DESCRIPTION: A Concept Safety Evaluation (CSE) of the conceptual
design of the Alma development project was carried out. The work
included data assimilation, general hazard identification,
qualitative and quantitative risk assessment (QRA), review of
safety and EER systems, and the generation of conclusions and
recommendations. A range of hazards was considered in the risk
assessment. This Concept Safety Evaluation for a development
offshore Nova Scotia is regulated by the Nova Scotia Petroleum
Directorate, and, as such, is one of the requirements the
Directorate sets out as a condition for permits to proceed with
such a development.
The risks to personnel were the primary focus of the risk
evaluation, and both individual and collective risks were
evaluated. Individual risks (IR), the actual risks to which
individuals with different jobs are exposed, were quantified and
compared to Target Levels of Safety (TLS) established for the
project. Collective risks (CR) were quantified in terms of
Potential Loss of Life (PLL), and assessed within the context of
the as low as reasonably practicable (ALARP) principle. The IR
TLS’s were as follows: IR below 10-6 is negligible,
IR between 10-6 and 10-3 is ALARP, and IR
above 10-3 is intolerable.
|
|
Figure 1: Rendering of Alma platform |
Figure 2: The study included a review of safety and EER
systems. This schematic of the platform shows a possible
EER system, the Skyscape (deployed). |
|
P2102 |
QUANTITATIVE RISK ASSESSMENT OF PROPOSED AES POWER PLANT
CLIENT: AES Calgary ULC DATE: 2001
DESCRIPTION: A quantitative risk assessment (QRA) of the
proposed AES Calgary Power Plant was conducted. The risk
assessment included consideration of the engineering and
operational parameters of the proposed plant within the context
of the proposed location parameters. The primary focus of the
risk assessment was quantification of acute risks to the offsite
public. The scope of the work consisted of the following
principal tasks: data acquisition, hazard scenario development,
frequency analysis, consequence analysis, risk assessment and
acceptability, description of risk mitigation measures, and
conclusions and recommendations. The key results of the work are
estimates of individual and collective risks to the public.
|
|
Figure 1: General
location of proposed AES power plant |
Figure 2: Site view to
the North from Township Road 240 |
|
P2101 |
ESCAPE,
EVACUATION, AND RESCUE (EER) R&D PHASE 2
Linked projects:
P2707, P2701, P2601, P2501, P2401, P2301,
P2201, P2101, and P2001
CLIENT: Transportation Development Centre, Transport Canada
DATE: 2001-2003
DESCRIPTION: Under this project is the development of
performance-based standards (PBS) for escape, evacuation, and
rescue (EER) for East coast offshore oil and gas installations
together with the supporting research. In the first project, the
development of the guidelines is carried out, with Bercha
providing facilitation, expert personnel, and coordination of a
team of offshore safety, human factors, marine operations, and
medical experts. The PBS development program is carried out
under the guidance of a steering committee comprising Transport
Canada, Transportation Development Centre, Canada-Nova Scotia
Offshore Petroleum Board, Canada-Newfoundland Offshore Petroleum
Board, Canadian Association of Petroleum Producers, and other
experts. Bercha is responsible for the drafting and editing of
the guidelines and organizing their development, stakeholder
consultation, and promulgation. In the second element, there are
two supporting research projects, one on human performance under
extreme conditions, and the second on the full-scale performance
evaluation of specialized evacuation systems. Since experimental
data are not available nor can be generated for performance
under life threatening conditions, a compendium of all accident
anecdotal data, applicable error rate and performance human
factors data, and risk and reliability documentation is
assembled, reviewed, and transformed into parameters applicable
to the operation of the computerized EER probabilistic
simulator. In the second subproject, specifically, the Seascape
2000 proprietary system and the PROD or Preferred Orientation
and Deployment lifeboat launch system are evaluated. |
2000 |
To Top of Page |
P2013 |
P2013
SAFETY OF NORTHERN AND POLAR SHIPPING (SONAPS) - ESCAPE,
EVACUATION, AND RESCUE
CLIENT: National Research Council of Canada and European Union,
Brussels DATE: 2000-2001
DESCRIPTION: Currently, no adequate standards or technologies
exist for the safety of civilian or military ships operating in
ice covered waters. Current SOLAS standards do not include
requirements for ice reinforcement or ice capability in
lifeboats, nor are current launching and evacuation devices
suited for Arctic operations. The current project, led by the
Bercha Group, addresses the problem of analyzing, developing,
and implementing technologies and regulations to assure
adequately safe escape, evacuation, and rescue (EER) procedures
for a range of common ice conditions from solid ice to broken
ice for vessels. The consortium, in addition to the leaders
Bercha Group, consist of Scott Polar Research Institute of
Cambridge University, Fortun Oil of Finland will provide
icebreaker support, the European Union Joint Research Centre
from Ispra, Italy, and advisors Umoe Schat-Harding of Oslo,
Norway. Currently, the program is in its design phase, with
Bercha supported by the National Research Council of Canada, and
the other organizations supported by their respective nations.
Ultimately, the work will consist of information assimilation,
analysis and modeling, conceptual engineering, model testing,
and full-scale tests. |
P2012 |
PIPELINE CORRIDORS AND PROPERTY DEVELOPMENT
CLIENT: Banadyga Mitchell Partnership Architects, Regina, SK
DATE: 2000-2001
DESCRIPTION: An investigation of public risks associated with
the development of Wintergreene Estates as proposed adjacent to
existing pipeline corridors was carried out. An assessment is
underway, involving quantitative risk modeling for various
pipeline parameters utilizing Bercha Group proprietary
consequence and risk integration models, and review of
guidelines relating to development in the vicinity of pipeline
systems. |
P2011 |
STUDY OF NATURAL GAS PIPELINE PLACEMENT IN THE RURAL ENVIRONMENT
CLIENT: Transportation Association of Canada (TAC) DATE:
2000-2001
DESCRIPTION: The placement and location of hydrocarbon pipelines
with respect to road geometries and cross sections can have an
effect on the safety of the highway system and its users and
adjacent residents, as well as operational and economic impacts
on highway maintenance, construction, and modification
activities. To assess these risks and impacts, the
Transportation Association of Canada (TAC) commissioned Bercha
Engineering Limited (Bercha) to conduct an in-depth,
comprehensive study directed at generating a qualitative and
quantitative understanding of the implications of locating
pressurized natural gas pipelines in various locations within
rural road right-of-ways. The study covered four primary
representative road types together with their variations in ADDT,
vehicle speed, and cross section, as well as three
representative pipeline sizes and pressure categories for three
different pipeline locations. The three pipeline locations
consisted of one in the shoulder, one below the ditch, one just
inside the edge of the right-of-way, and a fourth control
location where the pipeline is away from the effects of the
roadway. The method for systematically quantifying the risks to
the public, considering the effects of the pipeline-roadway
synergy, including effects on the pipeline failure rate as well
as consequences of possible failure including ignition by
vehicles, was developed and applied to each of the 108 generic
cases. Both individual and collective risks and their variations
for each of the different combinations were evaluated, and
discussed. Similarly, economic impacts, including increases in
the unit cost of common maintenance, construction, and
reconstruction activities for the road operators were also
identified. A series of conclusions and recommendations was
generated, including definition of compatible and incompatible
combinations of pipeline and location installations in terms of
safety, cost, and constructibility; various risk and impact
mitigation measures to enhance safety and reduce costs; and
long-term approaches to optimize the situation. Although
previous studies have been done on the use of common utility and
transportation corridors, no comprehensive quantitative
assessment of risks and economic impacts for representative
combinations of road and pipeline characteristics has appeared
previously, resulting in a significant volume of new
observations and information available from the work reported
herein. The report can be
purchased online at the TAC bookstore. |
P2010 |
ALTERNATIVE OIL SPILL OCCURRENCE ESTIMATORS FOR THE BEAUFORT AND
CHUKCHI SEAS
CLIENT: Minerals Management Service, United States Department of
the Interior DATE: 2000-2001
DESCRIPTION: The project goals are to develop and apply
alternative methodologies for the assessment of oil spill rates
associated with exploration and production facilities and
operations in deeper waters in the Chukchi and Beaufort Seas.
The prediction of the reliability (or failure) of systems
without history can be approached through a variety of
mathematical techniques, the most preferable and accepted being
fault trees, and their possible combination with secondary
methods such as Monte Carlo simulation and Bayesian statistics.
Bercha International Inc. identified an optimal methodology for
the prediction of oil spill rates for systems such as those
operational or contemplated for the deeper waters of the
Beaufort and Chukchi Seas in the Alaskan OCS, and is applying
these together with an estimate of their statistical robustness
to these systems in order to generate predictions of oil spill
rates. The procedure will be applied for each of the principal
facility and operation types for exploration and production
operations in the study area.
Click on the thumbnails to view enlarged images.
|
|
Figure 1: General Study Area |
Figure 2: Work Flow Schematic |
|
P9709 |
SAFETY CASE FOR THE SABLE OFFSHORE ENERGY PROJECT
CLIENT: Sable Offshore Energy Project
DATE: 1997 - 2001
DESCRIPTION: The Bercha Group was the prime contractor for the
Concept Safety Evaluation and subsequent safety case of the
Sable Offshore Energy Project, providing overall project
management, conducting the CSE for all onshore facilities, as
well as selected segments of the offshore facilities including
the Straits of Canso crossing and ship/collision probability
assessments associated with the offshore platforms. Bercha
conducted the QRA through a systematic sequence of data
assimilation, hazard scenario development, frequency evaluation,
consequence assessment, risk analysis, risk acceptability
evaluation, risk mitigation measure development, and resultant
or residual risk assessment. For each of the principal facility
components, including marine pipeline, gas processing plant, NGL
Pipeline, NGL Fractionation Plant, and NGL Products Distribution
Terminal. Subsequent QRAs relating to the project were
conducted by Bercha in the area of Statia Marine Terminal risk
assessment, fire and explosion consequence analysis, offshore
escape evacuation and rescue studies, several HAZOP and HAZ-IDs,
and general risk management and safety program development for
the safety case associated with the project. |
P2009.02 |
TR
AIR BREATHABILITY FOR THEBAUD
CLIENT: Sable Offshore Energy Project, Halifax, NS DATE:
2000, August
DESCRIPTION: A probabilistic analysis of breathable atmosphere
in Thebaud TR for various complements was carried out. |
P2009.01 |
THEBAUD MEG SYSTEM WHAT-IF HAZOP
CLIENT: Sable Offshore Energy Project, Halifax, NS DATE:
2000, July
DESCRIPTION: A HAZOP for the Thebaud Monoethylene Glycol (MEG)
pipeline injection system was conducted. The methodology used
was a knowledge-based What-If HAZOP for two principal nodes
comprising the system. |
P2008 |
ATCO
METERING STATIONS OFFSITE LIABILITY PROJECT RISK QUANTIFICATION
CLIENT: ATCO Pipelines, Edmonton, AB
DATE: 2000, August
DESCRIPTION: An assessment of offsite risk for 12 ATCO meter
stations was carried out. This was done by combining the
consequence jet fire modeling results previously generated by
others, with frequencies, damage criteria, and release
orientation characteristics to assess risks to personnel,
facilities, plant shutdown, and the potential for incident
escalation. The key results of the work are the quantified risks
and their ranking according to magnitude. Although the risks
themselves were insignificant, there was a relatively large
range of their expectations among the different facilities, and
their relative values may be used as a basis for setting risk
management program targets. |
P2007 |
MONCTON LATERAL RISK ASSESSMENT
CLIENT: Maritimes and Northeast Pipelines
DATE: 2000
DESCRIPTION: The proposed Moncton Lateral has been designed as
an NPS 8 line from a total length of approximately 12.25 km with
isolation valving at each end, connecting from the main line
location to the City of Moncton. The route proposes to follow NB
Highway 15 with an offset of approximately 8 m from the edge of
the highway. The work consisted of the assimilation of data, and
semi-quantitative risk assessment associated with the proposed
project, culminating in a letter of opinion on risks to the
public and project integrity associated with the pipeline as it
is proposed. |
P2006 |
REVIEW OF CONSEQUENCE MODELS FOR HYDROCARBON PIPELINES
CLIENT: Canadian Energy and Pipeline Association (CEPA)
DATE: 2000-2001
DESCRIPTION: The CEPA Pipeline Integrity Working Group project
includes a review of consequence models applicable to the
modeling of hazard effects resulting from a variety of pipeline
failures. Over the last few years, with the vast increase in
micro-computing capability together with extensive improvements
in software computational, input-output, graphic, and export
capabilities, a considerable proliferation of consequence and
risk models applicable to the petrochemical industry has taken
place. Whereas up to the late-1970s and early-1980s, models were
typically in Fortran, operated in a DOS-based environment, with
the advent of the Windows environment and powerful
computational, programming, and graphic capabilities, a variety
of multipurpose and specialized consequence models applicable to
assessing hazard effects from pipeline failures have become
available. These models vary significantly in their
comprehensiveness, user friendliness, and cost, to mention only
a few factors. Accordingly, a systematic compilation of data on
these models together with a comparative assessment based on
industry established standards was carried out. |
P2005 |
QUANTITATIVE RISK ANALYSIS OF MILLENNIUM WEST PIPELINE ADJACENT
TO THE 401
CLIENT: St. Clair Pipelines (1996) Limited, Chatham, Ontario
DATE: 2000, June
DESCRIPTION: A quantitative risk assessment (QRA) of the
proposed Millennium West Pipeline section adjacent to the 401
was conducted. The risk assessment included consideration of the
engineering, construction, and operational parameters of the
pipeline. The primary focus of the risk assessment was
quantification of acute risks to the public. A detailed
assessment of all factors affecting the risk was made, including
inspection of databases to estimate pipeline diameter effects,
and an acquisition and analysis of 401 traffic data to assess
the possibility of traffic impacts on the pipeline. The work
culminated in a detailed final report describing the project,
methodology and assumptions, frequency analysis, consequence
analysis, risk analysis, possible risk mitigation measures, and
conclusions and recommendations.
|
|
|
Figure 1: Segment under study runs parallel to
Highway 401, and is indicated by the red line |
Figure 2: Example of
Natural Gas Pipeline Release Dynamics |
Figure 3: Example of
Natural Gas Pipeline Release Dynamics |
|
P2003 |
EPCOR ROSSDALE POWER PLANT MODIFICATION RISK ANALYSIS
CLIENT: EPCOR Power Generation Inc., Edmonton, Alberta
DATE: 2000
DESCRIPTION: A quantitative risk assessment (QRA) of the
proposed EPCOR Rossdale Power Plant modification was conducted.
The risk assessment included consideration of the engineering,
construction, and operational parameters of the existing and
modified plant. The primary focus of the risk assessment was
quantification of acute risks to the public.
|
|
|
Figure
1: View of EPCOR Rossdale Power Plant in Edmonton,
Alberta, Canada |
Figure
2: Example Hazard Footprint |
Figure
3: Example of Individual Specific Risk Isopleths
|
|
P2002 |
INVESTIGATION OF RISKS TO AND FROM HAZARDOUS FACILITIES ADJACENT
TO THE HALIFAX NATURAL GAS LATERAL PIPELINE
CLIENT: Maritimes and Northeast Pipelines
DATE: 2000
DESCRIPTION: The work, a permit condition mandated by the
National Energy Board, involves the assessment of interactive
risks between the Halifax Lateral, a high-pressure natural gas
pipeline, and adjacent hazardous facilities. These hazardous
facilities include liquid propone storage tanks, the Air Liquide
processing plant, various crude oil and other chemical storage
facilities, and railway facilities including a railway yard and
several main line level crossings at locations where the
pipeline is located in the railway right-of-way. The work
consisted of field and remote data acquisition, consequence
modeling of both the pipeline and facility hazards and an
assessment of risk levels associated with the interactive risk
synergy. |
P2001 |
ESCAPE, EVACUATION AND RESCUE RESEARCH AND DEVELOPMENT PROJECT
Linked projects:
P2707, P2701, P2601, P2501, P2401, P2301,
P2201, P2101, and P2001
CLIENT: Transportation Development Centre
DATE: 2000-2001
DESCRIPTION: A major multi-disciplinary project on the
development of appropriate escape, evacuation, and rescue (EER)
systems for east coast bottom founded and floating installations
associated with the oil and gas industry off the East Coast of
Canada. The work consists of a worldwide literature search,
followed by the development of a risk profile tool, an expected
value and a Monte Carlo simulator, of each component of and the
entire EER process and the integrated process. Consideration of
equipment reliability and human factors in the face of accident
effects, emergency panic conditions, and the entire spectrum of
weather conditions is incorporated. Conclusions will be
generated on optimal systems as well as further research
priorities for both the development of appraisal methods,
technologies, and a regulatory framework for EER provisions in
the study area. |
R2003
Geomatics |
Airborne
Laser Topographic Mapping System
National Petroleum Company, Tehran, Iran |
R2002
Geomatics |
Military
SAR and High Resolution Imaging System Development
Ministry of Defence, Sri Lanka |
1999 |
To Top of Page |
P9918 |
EL BIBAN POWER PLANT AND SYSTEMS
RELIABILITY AND MAINTAINABILITY ANALYSIS
CLIENT: Centurion International Inc.
DATE: 1999 - 2000
DESCRIPTION: The El Biban Power Plant and associated equipment
for the SEEB Electrical Company in Tunisia, Africa is proposing
the development of a power plant and associated power
distribution system fueled by an offshore oil field located in
the southern Mediterranean Sea just off the coast of Tunisia.
The system is a complex consisting of the wellhead platform,
subsea pipeline, onshore battery and separation equipment,
various interconnecting pipelines, the main power plant and
turbine generator, a high-voltage power line to the STEG
Substation and various supporting facilities. An integrated
downtime risk assessment including both short-duration expected
downtime for maintenance and temporary repairs and potential
catastrophic or major failure downtime risk was assessed. The
work was conducted through the utilization of industry and
proprietary data bases for equipment failure rates, interruption
times, times to repair, environmental data, and general
reliability assessment combined through a probabilistic model
capable of generating expected values and their distributions
through a Monte Carlo procedure.
Click on thumbnails to view enlarged images.
|
|
Figure 1: General Project Location |
Figure 2: Monte Carlo technique |
|
P9917 |
ASSESSMENT OF REPORT ON RELATIVE CRITICAL SOUR GAS WELL
RISK ASSOCIATED WITH DIFFERENT DRILLING TECHNIQUES
CLIENT: Energy and Utilities Board
DATE: 1999 - 2000
DESCRIPTION: The work involved the detailed review of an
assessment of the relative risks associated with the drilling of
critical sour gas wells based on overbalanced jointed pipe
drilling and underbalanced jointed pipe or coiled tubing
drilling. |
P9916 |
SAINT JOHN LATERAL HYDROELECTRIC DAM RISK ANALYSIS
CLIENT: Maritimes and Northeast Pipeline
DATE: 1999
DESCRIPTION: The work consisted of the review of risk
assessments performed by hydroelectric consultants on the risks
to the Saint John natural gas pipeline from dam failures in a
system of dams adjacent to its route. |
P9915 |
ROSSDALE ATCO PIPELINE RISK ASSESSMENT
CLIENT: ATCO Pipelines
DATE: 1999
DESCRIPTION: The work consisted of a quantitative risk
assessment of the proposed Rossdale natural gas pipeline from
the Edmonton Ethane Extraction Plant to the Rossdale Power
Generating Station. The work included quantitative scenario
characterization, consequence modeling, risk assessment, risk
mitigation analysis, and the generation of risk-based
recommendations for six different potential pipeline routes for
the high-pressure 20-inch natural gas pipeline. Included in the
work was presentation and defense of results at the Alberta
Energy and Utility Board hearing.
Risk analysis is an orderly process through which one can assess
risk as well as methods of reducing the risk. The appropriate
representation of risk for a pipeline is a risk transect showing
variation in Individual Risk Intensity and Individual Specific
Risk with the distance on either side of the pipeline, as
illustrated in Figure 2.
|
|
Figure 1: Map showing general location of the study area
(yellow) in the City of Edmonton. |
Figure 2: Example of Risk Transect for Linear Source.
Click on thumbnail to enlarge |
|
P9914 |
ASSESSMENT OF RISKS AT ROAD-RAILWAY CROSSINGS
CLIENT: Code Hunter and Associates
DATE: 1999
DESCRIPTION: The work consisted of the generation of definitive
risk measures associated with a variety of road-railway level
crossings including passive crossings, flashing light and bell
crossings, and gated crossings. The work was based on nation
wide statistics collected from the Transportation Safety Board,
as well as industry confidential statistics provided by the
transportation companies. Results of the work were utilized in
support of a litigation associated with a major railway crossing
accident.
|
|
|
Figure
1: Passive crossing marker in rural setting |
Figure
2: An urban crossing with flashing lights and bells |
Figure
3: Crossing marker with bells, lights, and gate |
|
P9912 |
SAINT JOHN LATERAL RISK ASSESSMENT
CLIENT: Maritimes and Northeast Pipeline
DATE: 1999
DESCRIPTION: The work consisted of a quantitative risk
assessment for the portion of the St. John Lateral running
within St. John City limits. Included in the risk assessment was
the assessment of the pipeline installation on the Reversing
Falls Bridge. A detailed quantitative assessment of frequencies,
consequences, risks, and mitigations was conducted, and
quantitative results were presented in support of the National
Energy Board M&NP application for a license. |
P9910 |
RISK ASSESSMENT OF PROPOSED PEMBINA 11-32 CRITICAL SOUR
GAS WELL
CLIENT: Petro-Canada
DATE: 1999
DESCRIPTION: The work consisted of a detailed quantitative risk
assessment for a proposed critical sour gas well drilling
operation as well as a conceptual safety assessment of a
potential sour gas development which would ensue if the well
were successful. The process was conducted through public
consultation with a Community Advisory Committee, involving
extensive presentation of methodology, results, and
interpretations at various stages of the work. Part of the work
was carried out by Jacques Whitford Environment, who were
responsible for the consequence modeling utilizing the GASCON 2
model, while Bercha was responsible for the balance of the work
including scenario definition, frequency assessments, fire and
explosion consequence modeling, consequence result integration,
risk assessment, risk mitigation evaluation, and the generation
of a final report including a detailed description of all
aspects of the work. |
P9709
.43 |
PLATFORM FIREWATER SYSTEM HAZOP
CLIENT: Sable Offshore Energy Project
DATE: 1999
DESCRIPTION: A full guide word HAZOP was facilitated by Bercha
with an SOEP technical expert team for the entire Thebaud
platform firewater system following a test failure of the
system. The work included a detailed HAZOP of 27 nodes of the
system, and resulted in significant engineering and operational
recommendations.
Click on thumbnails to view
larger size.
|
|
Figure 1: SOEP
Location Map |
Figure 2: Schematic of SOEP Facilities |
|
P9709
.44 |
GOLDBORO GAS PLANT COMPRESSION HAZOP
CLIENT: Sable Offshore Energy Project
DATE: 1999
DESCRIPTION: Following the detection of a design fault, a full
HAZOP of the compression facilities was undertaken, facilitated
by Bercha with an SOEP expert team. Due to the complex nature of
the system, the high level of expertise of the team, and the
shortage of time, the initial mode was addressed using a full
guide word HAZOP, but the balance of the nodes and operating
modes were optimally accomplished using a knowledge-based HAZID
approach. Important technical recommendations significantly
improving system reliability were generated from the work.
|
P9909 |
BRISK
SOFTWARE DEVELOPMENT
CLIENT: National Research Council
DATE: 1999
DESCRIPTION: The work included the development of specialized
linear and point source risk analysis software for application
to quantitative risk assessments associated with linear
facilities such as pipelines and highways and point sources such
as gas processing facilities, wellheads, and refineries.
More information on BRISK.
|
P9908 |
BPC Et Al Turner Valley QRA
CLIENT: Berkley Petroleum Corporation
DATE: 1999
DESCRIPTION: Quantitative risk assessment of a proposed sour gas
delineation well drilling operation in the Turner Valley area
was conducted together to a level adequate for presentation at
AEUB hearings. |
P9907 |
CHEVRON GAVIOTA OIL AND GAS PROCESSING FACILITY –
CONDITION R1 REVIEW PROCESS
CLIENT: County of Santa Barbara Energy Division
DATE: 1999
DESCRIPTION: A semi-qualitative risk assessment of the risks
mitigation provisions and conditions associated with a variety
(over 12) scenarios for the future of the Chevron Gaviota oil
and gas processing facility. |
P9906 |
P9906 PRODUCTION WELL SSSV RISK ASSESSMENT
CLIENT: Berkley Petroleum Inc.
DATE: 1999
DESCRIPTION: An assessment of the risks associated with
production well blowouts with and without a SubSurface Safety
Valve (SSSV) was conducted. The work included a frequency
evaluation of blowouts, and a detailed probabilistic
cost-benefit analysis associated with the operation of the SSSV
and alternative risk mitigation measures.
|
P9905 |
REVIEW OF INCIDENT REPORTS ASSOCIATED WITH WILD ROSE PIPE
CORRIDOR
CLIENT: Kiewit Industrial Canada Ltd.
DATE: 1999
DESCRIPTION: A qualitative assessment within the context of the
Suncor rating system was conducted to provide perspective based
on fundamental risk assessment principles on a variety of
incidents associated with activities of Kiewit on the Suncor
construction site. |
P9904 |
RISK ASSESSMENT OF ALTERNATIVE ROAD ROUTES TO LETHBRIDGE
WATER TREATMENT PLANT
CLIENT: Reid Crowther & Partners Ltd.
DATE: 1999
DESCRIPTION: A risk assessment for alternative routings for
hazardous chemical carrying trucks accessing the Lethbridge
Water Treatment Plant was conducted. The assessment included
evaluation of low and high-speed intersections, park roads,
urban roads, and a turnoff ramp from Whoop-Up road.
|
P9903 |
ST. CLAIR PIPELINE QRA
CLIENT: Union Gas
DATE: 1999
DESCRIPTION: A quantitative risk assessment for a section of the
natural gas line adjacent to a primary highway was set out and
initiated. |
P9902
.2 |
HERMOSA BEACH QUANTITATIVE RISK ASSESSMENT
CLIENT: City of Hermosa Beach
DATE: 1999
DESCRIPTION: Risk analysis and engineering consulting services were provided to the
City of Hermosa Beach to assess, recommend mitigation, and
quantify and define risks associated with the proposed MacPherson Oil project in the City of Hermosa Beach.
|
P9709
.42 |
FRACTIONATION PLANT HAZID & CE
CLIENT: Sable Offshore Energy Project
DATE: 1999
DESCRIPTION: A precommissioning and commissioning procedure
HAZID and Critical Examination of the procedure was conducted
including facilitation of the HAZID with an expert team,
scribing of results utilizing proprietary software, and the
publication of a comprehensive final report describing the
results and recommendations from the work. |
P9709
.41 |
ONSHORE 26” GAS AND NGL PIPELINE HAZOP
CLIENT: Sable Offshore Energy Project
DATE: 1999
DESCRIPTION: A detailed HAZOP for the NGL pipeline was
facilitated, scribed, and reported by Bercha together with the
HAZOP sessions conducted together with a team of experts from
SOEP and owner companies. |
P9709
.40 |
ENGINEERING CHANGE NOTICE (ECN) HAZOP
CLIENT: Sable Offshore Energy Project
DATE: 1999
DESCRIPTION: A high-level knowledge based HAZOP procedure was
facilitated, scribed, and reported by Bercha to ascertain that
document and action integrity be maintained for the Engineering
Change Notices generated and associated follow up procedures. |
P9709
.39 |
NORTH TRIUMPH HAZID/CE
CLIENT: Sable Offshore Energy Project
DATE: 1999
DESCRIPTION: A precommissioning and commissioning procedure
HAZID and Critical Examination of the procedure was conducted
including facilitation of the HAZID with an expert team,
scribing of results utilizing proprietary software, and the
publication of a comprehensive final report describing the
results and recommendations from the work. |
P9709
.38 |
GOLDBORO GAS PLANT HAZID/CE
CLIENT: Sable Offshore Energy Project
DATE: 1999
DESCRIPTION: A precommissioning and commissioning procedure
HAZID and Critical Examination of the procedure was conducted
including facilitation of the HAZID with an expert team,
scribing of results utilizing proprietary software, and the
publication of a comprehensive final report describing the
results and recommendations from the work. |
P9709
.37 |
STRAIT OF CANSO PIPELINE CROSSING RISK ASSESSMENT
CLIENT: Sable Offshore Energy Project
DATE: 1999
DESCRIPTION: A risk assessment associated with two principal
types of crossing installations for the common trench pipelines
across the Strait of Canso were investigated. The first
installation involved a combination of bottom-lay, trenching,
and successive layer armoring. The second alternative involved
directional drilling. The risk assessment considered both risks
associated with the construction and installation process as
well as operational risks. Both risks directly attributable to
the crossing installation and its operation and intrinsic risks
(such as internal corrosion) independent of the installation
method were assessed and quantified. Conclusions and
recommendations were made.
Click
on images to enlarge
|
R9902
Geomatics |
Airborne
SAR Surveillance System Design and Specification
For Ministry of Defence, Sri Lanka, with Kelowna Flightcraft
Ltd. |
P9901
.2 |
DYNEGY ABOVE GRADE SOUR GAS FACILITIES FAILURE
FREQUENCIES
CLIENT: Jacques Whitford Environmental
DATE: 1999
DESCRIPTION: The work consisted of a detailed assessment of the
failure frequencies and their distribution among different
failure types for a variety of sour gas wellhead and block valve
installations in Southern Alberta Dynegy facilities.
|
P9901
.1 |
HVP PIPELINE FAILURE FREQUENCIES
CLIENT: Jacques Whitford Environmental
DATE: 1999
DESCRIPTION: High vapor pressure pipeline failure frequencies
were assessed commencing with an Alberta Energy Utilities Board
database, together with assessment according to pipeline risk
factors associated with a specific pipeline operation under
consideration. |
1998 |
To Top of Page |
P9809 |
TRANSGAS CONSEQUENCE ANALYSIS – REGINA
AREA NATURAL GAS PIPELINES
CLIENT: TransGas
DATE: 1998
DESCRIPTION A consequence assessment for a designated set of
segments of the TransGas pipeline network in the vicinity of the
City of Regina was carried out. The principal technical steps of
the consequence assessment included hazard scenario definition
and quantitative characterization. Consequence evolution and
consequence modeling, consequence potential assessment and
detailed consequence analysis. A total of 11 segments was
studies in detail including the above steps, while a detailed
consequence assessment giving estimates of both casualties and
property damage based on a worst-case situation was also
conducted. Conclusions and recommendations were presented.
|
P9808 |
RISK FROM MAGNETIC LEVITATION TRAINS TO ADJACENT BURIED
STEEL PIPELINES
CLIENT: Donahue and Company Inc., U.S.A.
DATE: 1998
DESCRIPTION: High-level consulting work directed at defining the
risks associated with the operation of Mag-Lev trains parallel
to pipelines. Specifically, effects of the electromagnetic
pulsations associated with the train operation on induced
currents in the steel pipeline were considered together with
mitigation measures.
Following a literature survey of current magnetic
levitation (Mag-Lev) train systems approaching the operational
stage, a preliminary assessment of risks associated with the
operation of Mag-Lev trains had a potential to induce
substantial currents in adjoining steel pipelines and mitigation
measures would have to be taken in order to avoid significant
pipeline damage. |
P9807 |
POINT TUPPER LATERAL QUANTITATIVE RISK ASSESSMENT
CLIENT: Maritimes & Northeast Pipelines
DATE: 1998
DESCRIPTION: A comprehensive Quantitative Risk Assessment for
risks to public, workers, environment, and project integrity for
the common trench installation of an NGS8 natural gas pipeline
and an NPS8 natural gas liquids pipeline from Goldboro to Point
Tupper on Cape Breton Island in Nova Scotia was conducted. The
work consisted of the modification of pipeline statistics to
account for the synergy between the two pipelines constructed
and operated in a common trench, and the impact of the resultant
possible failure modes on public safety, the environment, and
project integrity. Included in the work was the filing of a
comprehensive report with the National Energy Board and
attendance as an expert witness on behalf of Maritimes and
Northeast Pipelines at National Energy Board hearings in
Antigonish, Nova Scotia in November, 1998. |
P9806 |
QUANTITATIVE RISK ASSESSMENT OF CENTRA NATURAL GAS
PIPELINE FROM SQUAMISH TO WHISTLER,
BC
CLIENT: Centra Gas Limited
DATE: 1998
DESCRIPTION: A semi-qualitative risk assessment for the
variation in risk between a pipeline installed in a right-of-way
adjacent to a secondary highway in a mountainous region were
conducted. Preliminary conclusions and recommendations were
presented including an assessment of the principal risk causal
factors associated with the unique aspects of the proposed
installation. |
P9805 |
DEVELOPMENT OF END-TO-END RISK ANALYSIS SOFTWARE
CLIENT: National Research Council of Canada
DATE: 1998
DESCRIPTION: The further development of the Bercha Risk (BRISK)
was partially funded by NRC over a four month period in 1998.
The work covered by the funding consisted of the expansion of
the risk consequence evolution modeling using event trees which
automatically couple into risk analysis spreadsheets with inputs
of the principal probabilistic parameters and output risk
transects giving individual specific risk and individual risk
along an axis perpendicular to the centre-line of the pipeline.
|
P9804 |
HERMOSA BEACH PROJECT INTEGRATED RISK ASSESSMENT
CLIENT: City of Hermosa Beach, CA, USA
DATE: 1998
DESCRIPTION: Integrated assessment of the proposed MacPherson
Project to be located in a medium density residential and
commercial area in Hermosa Beach was conducted. The work
consisted of site visits, review of existing reports and data, a
detailed QRA, attendance at stakeholders meetings, and
attendance at public council meetings. The integrated risk
assessment was carreid out in considerable detail to consider
both non-homongenous population densities in space and time, and
a variety of weather conditions in order to assess both
representative and worst-case situations. Integrated risk
measures, including individual risk, risk matrices, and risk
spectra were generated in support of the work and presented at
the city’s Council meeting September 1998. |
R9803
Geomatics |
Airborne
Laser Route Topographic Mapping System Design and Specification
ATRAK Energy Limited |
P9803 |
ENGINEERING FEASIBILITY STUDIES FOR HYDROCARBON PRODUCTS
PIPELINE EASEMENTS
CLIENT: Brown, Winfield, and Cansoneri, Union Pacific Railway
DATE: 1998
DESCRIPTION: Assessment of the value of pipeline easements on
Union Pacific Railroad right-of-ways was conducted with special
emphasis on construction, engineering, and risk issues.
Constructibility of pipelines in the vicinity of the existing
pipelines was quantitatively assessed. Engineering issues
involving the operability and design requirements of pipelines
operated in close proximity ranging from common trench
installations to separations in excess of 20’ were considered
and quantitatively and qualitatively described to support the
pipeline easement value assessment. |
R9802
Geomatics |
Detailed
Design and Specification of Aerial Multi-Purpose Surveillance
System for Malaysian Government
Mofaz Group, Kuala Lumpur, Malaysia |
P9801 |
TORCH PT. PEDERNALES GAS PIPELINE QUANTITATIVE RISK
ASSESSMENT
CLIENT: Santa Barbara County
DATE: 1998
DESCRIPTION: An end-to-end quantitative risk assessment was
carried out for the new operating configuration of the Torch Pt.
Pedernales gas pipeline. Meteorological site conditions were
analysed and included in the assessment. This new operating
configuration consisted of an increase of allowable H2S
concentration from 4,000 to 8,000 ppm. Both absolute value risk
spectra and transects and incremental risk spectra and transects
for the increase in H2S concentration were generated. A formal
final report was generated together with support for public
hearings in the County. |
P9709
.33 |
SABLE OFFSHORE ENERGY PROJECT HAZOP FACILITATION
CLIENT: Sable Offshore Energy Project
DATE: 1998
DESCRIPTION: A series of HAZOP sessions was facilitiated by the
Bercha Group including organization of HAZOP team, facilitation
of HAZOP services, and HAZOP reporting. Specifically, HAZOP was
carried out for the specific onshore facilities including the
gas processing facility at Goldboro and the NGL fractionation
plant at Point Tupper. |
1997 |
To Top of Page |
P9709 |
SAFETY CASE FOR THE SABLE OFFSHORE
ENERGY PROJECT
CLIENT: Sable Offshore Energy Project
DATE: 1997 - 2001
DESCRIPTION: The Bercha Group was the prime contractor for the
Concept Safety Evaluation of the Sable Offshore Energy Project,
providing overall project management, conducting the CSE for all
onshore facilities, as well as selected segments of the offshore
facilities including the Straits of Canso crossing and
ship/collision probability assessments associated with the
offshore platforms. Bercha conducted the onshore analysis
through a systematic sequence of data assimilation, hazard
scenario development, frequency evaluation, consequence
assessment, risk analysis, risk acceptability evaluation, risk
mitigation measure development, and resultant or residual risk
assessment. For each of the principal facility components,
including marine pipeline, gas processing plant, NGL Pipeline,
NGL Fractionation Plant, and NGL Products Distribution
Terminal. Subsequent QRAs relating to the project were
conducted by Bercha in the area of Statia Marine Terminal risk
assessment, fire and explosion consequence analysis, offshore
escape evacuation and rescue studies, and general risk
management and safety program development for the safety case
associated with the project.
|
R9709
Geomatics |
Preliminary Design of Maritime Airborne Surveillance Program for
Malaysian Exclusive Economic Zone
Malaysian Department of the Environment |
P9704 |
ECONOMIC RISK ANALYSIS OF SCHEDULE IMPLICATIONS FOR THE
ALPINE DEVELOPMENT PROJECT
CLIENT: Tri-Ocean Engineering
DATE: 1997
DESCRIPTION: A Monte Carlo simulation of the project time flow,
together with the principal uncertainties associated with a
schedule 1 analysis for a development project on the Alaskan
North Slope was carried out. Principal areas of uncertainty
included those associated with labour requirements and rates on
the North Slope, success of the marine transport of principal
equipment items around Point Barrow (given a 3 to 6 week
ice-free window), logistics and operations on the tundra given a
variability of weather windows for their conduct, and the
integration of all these activities into a total project
schedule risk evaluation. |
R9703
Geomatics |
Interpretation of ERS-1 Images
Amoco Worldwide Engineering and Construction Ltd.
Houston, TX, USA |
R9701
Geomatics |
SPOT Image
Mapping, N.W.T.
Ranger Oil Ltd.
Calgary, Alberta, Canada |
1996 |
To Top of Page |
P9657 |
DEVELOPMENT OF COMMERCIAL HYDROCARBON EXPLORATION OPPORTUNITIES
IN MALAYSIA
CLIENT: CS Resources Limited DATE: 1996
DESCRIPTION: A high level program for the identification and
development of commercial opportunities for the special
capabilities of CS Resources International within the Malaysian
jurisdiction. The work involved the gathering of reserve,
development, and production data for the Malaya, Baram Delta,
and Sabah Basins and the analysis of selected clusters of fields
within the context of certain operational and economical
parameters capable of being optimally met by the client company.
Work included the design of a detailed presentation for
international audiences showing the highlights of the Malaysian
Development program envisioned. |
P9655 |
ANALYSIS OF RISKS ASSOCIATED WITH OIL
PRODUCTS PIPELINE ON RAIL ROAD RIGHT OF
WAY
CLIENT: Southern Pacific Transportation Company, California &
Delaware, U.S.A.
DATE: 1996
DESCRIPTION: The provision of expert consultant services in the
area of pipeline engineering, right of way management, and
easement evaluation related to the operation of an existing oil
product pipeline located on a rail road right of way within the
city of Los Angeles. |
P9653 |
ESTABLISHMENT OF PUBLIC SAFETY RISK THRESHOLDS FOR LAND
USE PLANNING PURPOSES
CLIENT: County of Santa Barbara, California, U.S.A.
DATE: 1996
DESCRIPTION: Work is part of an ongoing program directed at the
enhancement of safety through the incorporation of risk based
guidelines in land use planning regulations. The work included
the development of an objected method for assessing societal
risk in the vicinity of hazardous facilities. The method
developed was based on casualty and fatality risk spectra and
included the development of a detailed procedure for
implementing the guidelines. Technical review, sample
calculations, and attendance at information sessions and
hearings constituted the work.
Click
on images to enlarge
|
|
Figure 1: Point Arguello
area, County of Santa Barbara |
Figure 2: Risk
Mitigation Measures Applicable to Gas Pipelines
|
|
P9650 |
RISK IMPLICATIONS OF HIGH POWER TRANSMISSION LINES IN
PROXIMITY OF PETROLEUM PIPELINES OF
RAIL ROAD RIGHT OF WAYS
CLIENT: Southern Pacific Transportation Company, California,
U.S.A.
DATE: 1996
DESCRIPTION: Vision of expert consulting services and
development of expert testimony relating to the risks and costs
associated with the operation of electrical transmission lines
on a rail road right of way within limits of the city of Los
Angeles. |
P9616 |
RECOMMENDATION OF PUBLIC SAFETY THRESHOLDS FOR LAND USE
PLANNING IN THE VICINITY OF
HAZARDOUS FACILITIES
CLIENT: County of Santa Barbara
DATE: 1996
DESCRIPTION: The work consisted of the development of feasible
safety thresholds for public protection in the vicinity of
hazardous facilities such as refineries, pipelines, and
petrochemical plants. Work consisted of a review of existing
criteria both nationally and internationally, with synthesis of
the most relevant individual and collective risk criteria for
inclusion in the CSV planning guidelines. |
R9604
Geomatics |
Digitizing
and Conversion of Survey and Map Coordinates
Chauvco Resources Ltd.
Calgary, Alberta, Canada |
P9603 |
INSTITUTION OF TEST METHODS FOR ICE RUBBLE
CLIENT: K.R. Croasdale and Associates Limited DATE: 1996
DESCRIPTION: The Development of a detailed program for the
evaluation of global crushing strength of ice rubble formations
including rubble piles, unconsolidated, semi consolidated, and
consolidated ridges, and pile ups in the vicinity of offshore
structures. Methods included the design of test procedures for
the evaluation of pressure and global forces utilizing existing
test facilities at the institute of ice dynamics and in private
laboratories. |
R9602
Geomatics |
ERS-1 and
Landsat Thematic Mapper Image Mapping
Komex International Inc.
Calgary, Alberta, Canada |
R9601
Geomatics |
Conversion
Of Digital Elevation Data Formats
Canadian Occidental Petroleum Ltd.
Calgary, Alberta, Canada |
1995 |
To Top of Page |
P9524 |
CONSTRUCTION ENGINEERING FOR HIGH PRESSURE GAS PIPELINE
CLIENT: Hill, Farrrer, and Burill DATE: 1995
DESCRIPTION: Analysis of effects of high pressure gas pipeline
in vicinity of commuter train track, including evaluation of
interaction of pipeline and railway in a track twinning
scenario. Work was conducted through Hill and Company on behalf
of the Orange County Transportation Association, for a location
in Orange County, California, near Newport Beach. |
P9515 |
NEW TAWAU AIRPORT QRA
CLIENT: KTA (Sarawak) Sdn. Bhd.
DATE: 1995
DESCRIPTION: Risk to public and worker safety associated with
the airborne operations of a proposed new airport for the Tawau
region, located in east Sabah, Malaysia, was conducted. An
investigation of the probability of aircraft crashes in the
vicinity of the proposed airport was conducted utilizing the
U.K. Health and Safety Executive algorithms for crash-rate
distributions in the vicinity of runway thresholds together with
ICAO Crash Statistics. In addition, a study was conducted for
the fuel depot, including fuel storage at the airport site,
loading and unloading, and transportation by tanker vehicles by
road to the fuel depot. The work included accident frequency,
spatial and temporal distribution assessment for the projected
traffic patterns up to the year 2020, consequence quantification
in terms of worker and public casualties, and risk mitigation
recommendations. A draft emergency response plan was also
prepared for consideration in the airport operating plan. Risk
mitigation recommendations included the development of buffer
zones over specified areas beyond each of the runway thresholds
and land use control in adjacent areas. |
P9513
.2 |
RISK ANALYSIS OF EXISTING SANTA FE PIPELINE WITHIN
SOUTHERN PACIFIC TRANSPORTATION
COMPANY EASEMENT
CLIENT: Brobeck, Phleger & Harrison
DATE: 1995
DESCRIPTION: An analysis of the risks to public and worker
safety associated with the operation of a high pressure gasoline
pipeline located in the Southern Pacific Right-of-way, extending
from California to El Paso, Texas, was conducted. Particular
consideration was given to the distinctive effects on risk of
the location of the pipeline within the Right-of-way in close
proximity to a frequently used freight and passenger train
railway track. Risk indices were computed for urban and rural
conditions, and an integrated risk for the pipeline operation
was assessed based on actual conditions along the Right-of-way.
The work served as support for expert testimony by Dr. F.G.
Bercha in litigation between Southern Pacific Transportation
Company and Santa Fe Pipeline Company, in support of Southern
Pacific's position. |
P9513
.1 |
PIPELINE AND FIBRE OPTIC CABLE ENGINEERING, CONSTRUCTABILITY
AND RISK ANALYSIS
CLIENT: Brobeck, Phleger, and Harrison
DATE: 1993--
DESCRIPTION: The project consisted of the preparation and
presentation of expert testimony on the general problem of
construction of new pipeline or fibre optic cable facilities in
the vicinity of an existing high pressure oil products line
located on a railway right-of-way. Studies consisted of the
development of construction scenarios for locations at different
separation distances from the pipeline and associated cost and
risk evaluations. Unit costs were developed for the construction
of new pipeline facilities at spacings ranging from
approximately 1 foot tangent to tangent, to 10 feet and more
from the existing pipeline. Worker and public safety risks
associated with the close proximity construction scenarios were
also conducted, based on construction in urban and rural
conditions surrounding the right-of-way. In addition the
engineering model of a possible equivalent pipeline system form
California to Texas was developed and a replication cost
estimate was generated. The work consisted of analysis computer
modelling, engineering calculations, site visits at facilities
locations in California (Richmond, Benicia, Martinez Merced),
cost estimating reporting, depositions, and presentation of
export testimony.
|
Figure 1:
Proximity construction scenario for new pipeline
installation in the vicinity of an existing
high-pressure oil products line located on a railway
right-of-way.
Click
on thumbnail to enlarge |
|
Figure
2: Typical plow method installation for fibre optic
cable |
|
P9510 |
JOINT INDUSTRY PROJECT ON RIDGE AND RUBBLE LOADS
CLIENT: K.R. Croasdale and Associates Limited DATE: 1995-96
DESCRIPTION: A joint-government industry project to develop new
models for the prediction of ridge and rubble loads on fixed
offshore structures. The project has included two sets of ice
tank experiments of ridges being indented by structures, the
development of an in-situ test method for the strength of
rubble, and the detailed investigation of two new methods for
the determination of ridge load, which both involve the full
time analysis of the indentation of the ridge. The project is
also examining the assumption of Mohr-Coulomb behavior of the
ice rubble, the separation of the strength into components of
cohesion and friction, and the physical characteristics of the
ice motion against and around the structure. |
P9509 |
QUANTITATIVE RISK ANALYSIS OF A PROPOSED COAL HANDLING AND
STOCKPILE STORAGE OPERATION AT
TANJUNG MANIS FOR INCLUSION IN AN ENVIRONMENTAL IMPACT
ASSESSMENT
CLIENT: U.P. Environmental Services Sdn. Bhd., Kuching, Sarawak,
Malaysia
DATE: 1995
DESCRIPTION: An integrated public safety, worker safety, and
environmental risk analysis was conducted for the proposed coal
handling and storage operation located on the Batangiajanj River
at Tanjung Manis in Northern Sarawak, Malaysia. The principal
acute risks studies were those associated with the stockpile
spontaneous combustion and potential dust explosions contained
in a sea-going freighter hold during coal unloading. The work
consisted of the assessment of initiating event frequencies,
potential consequence analysis, and recommendation of risk
mitigation measures. |
P9504 |
ICE LOAD CONCENSUS
CLIENT: K.R. Croasdale and Associates Limited DATE: 1995-96
DESCRIPTION: A joint-government industry project to achieve
consensus on ice load levels for a number of typical ice load
events. Thirteen groups were asked to predict the load for five
individual load cases, for a single event occurrence, and for
the 1% exceedance load. Bercha have been involved in the
analysis of the predictions including comparisons between the
predicted loads, the methods used, the databases used, and the
estimates of the effects of dynamics, and the 1% exceedance
loads. A workshop between the participants and the predictors
will be held to possibly arrive at some consensus regarding the
methods to be used, the interpretation of databases, and hence
arrive at some narrowing of the range of predictions. |
|
Geomatics Projects (1995) |
R9515 |
Licensing,
Support and Training For ERMapper Software
Various Clients |
R9514 |
Conversion
Of ERS-1 Image Formats
Komex International Inc.
Calgary, Alberta, Canada |
R9511 |
Digitising
and Conversion Of Map Coordinates
Chauvco Resources Ltd.
Calgary, Alberta, Canada |
R9507 |
SPOT Image
Mapping, Algeria
PetroCanada Resources Ltd.
Calgary, Alberta, Canada |
R9503 |
Feasibility Study For Remote Sensing Environmental Monitoring Of
Pipeline Rights-of-Way
National Energy Board
Calgary, Alberta, Canada |
R9502 |
Conversion
Of Survey and Map Data For Input To ARGUS Mapping System
Chauvco Resources Ltd.
Calgary, Alberta, Canada |
1994 |
To Top of Page |
P9428 |
NON-LINEAR FINITE ELEMENT ANALYSIS 42" PIPE TEES
CLIENT: Foothills Pipe Lines Ltd DATE: 1994-95
DESCRIPTION: Elastic-Plastic analyses of two 42" pipe tees in a
metering station were analysed for changes in the operating
conditions of the natural gas pipeline, of which they formed
part. Preliminary pipe stress analyses had suggested that these
tees were over-stressed under certain conditions, but the margin
was sufficiently narrow to warrant more detailed analysis of the
tees. Finite element models of the pipe tees were developed
using the commercial finite element package, Ansys. Models were
developed using two forms of three-dimensional solid iso-parametric
elements, and iso-parametric shell elements. Analyses were
carried out for the previous operating conditions, and the
proposed new operating conditions. The non-linear behaviour used
was for material non-linearity only, using a von Mises yield
criterion for the steel in the pipes. The results were input
into a fatigue calculation using some estimated load cycles for
the extreme load conditions. It was found that, on a single load
cycle, some non-linearity did occur in the crotch of the tee,
but that it was of very limited extent, Strain hardening was
sufficient to limit stresses in subsequent cycles to the elastic
range. It was concluded that the overall reliability of the pipe
Tees was not compromised by the revised operating conditions. |
P9426
|
NON-LINEAR FINITE ELEMENT ANALYSIS OF ICE RIDGE KEEL
BEHAVIOUR
CLIENT: Public Works Canada DATE: 1994-95
DESCRIPTION: Non-linear finite element analyses of the
interaction between the rubble in an ice ridge keel and a
cylindrical
structure were undertaken. Analyses were carried out in both
two- and three-dimensions. The rubble was modelled as a Mohr-
Coulomb material with and without dilatancy. The structure was
modelled as a rigid body, and the interface as either having, or
not having, friction. The analysis was carried out assuming that
there existed a continuous solid ice layer on the surface. Two
forms of analysis were carried out: one in which the ice layer
was made to fail against a sloping structure, and the other, in
three dimensions, in which the ice layer was assumed to remain
intact, but in which the ice rubble could slide along the
underside of the ice layer. The rubble's natural buoyancy was
modelled by appropriate mass density and accelerations. Each
analysis was carried out by stepping the far-field of the ridge
towards the structure in preset displacement steps, which the
program automatically reduced as required to achieve equilibrium
and convergence of the solution. Considerable difficulties were
encountered with the curved interface between the rubble and the
cylindrical structure, and particularly where the rubble left
the structure at the back. Very large strains caused the
interface nodes to oscillate between target elements, causing
convergence problems. For extreme ridges (20 meters deep)
maximum loads of the order of 17 MN were obtained. |
P9408
P9418 |
DYNAMIC ANALYSIS AND MODIFICATION OF PUMP MOTOR BASE
CLIENT: Federated Pipelines Limited DATE: 1994
DESCRIPTION: A pump used in an oil pipeline, was experiencing
unacceptable vibrations at speeds within its normal operating
speed range. Field analysis of the pump and pump base had
concluded that the steel base which supported the pump motor may
have been causing the vibrations. A detailed dynamic finite
element analysis of the pump base was undertaken to establish
the frequencies and mode shapes of the fundamental vibration
mode of the base. Although there were modes which would have
caused the forms of deformation being observed in the rotor, the
frequencies of these nodes were higher than the observed
frequencies by an order of magnitude. Structural reinforcement
of the base was designed to limit the amplitudes of these
vibrations. It was finally concluded that the vibrations were
being caused by the rotor itself. |
P9406
P9315 |
NORTHUMBERLAND STRAIT CROSSING ICE ENGINEERING
CLIENT: Public Works Canada
DATE: 1993-1996
DESCRIPTION: A multi-year standing order for the provision of
specialist ice engineering services in support of the design,
construction, and operation of the Northumberland Strait
Crossing. This crossing is the longest bridge in the world
traversing a body of water which is ice covered for a
significant portion of each year. It will be approximately 13
kilometres long, connecting the island province of Prince Edward
Island to the Canadian main land. Northumberland Strait is ice
covered from early January until the third week in April,
although the date of last ice can vary over a period of two
months. Ice is a significant design parameter of the bridge and
its operation, both in terms of ice effects on the bridge and
effects of the bridge on the ice climatology. Bercha was first
retained as a consultant to Public Works Canada in 1986, and
since that time has been evaluating all aspects of the
ice-bridge interaction including ice forces on the bridge,
effect of ice jams, environmental effect of changes in ice
climatology, including microclimactic effects and effects on
local fisheries. Under the present standing order, the work
underway emphasized ice engineering aspects, particularly the
effect of the bridge on ice jams and the adequacy and
reliability of the ice design parameters, including pressures
and global loads, used in the final bridge design.
Click on
thumbnails to enlarge
|
|
|
|
Figure 1: View of
Confederation Bridge |
Figure 2: On the Confederation Bridge |
Figure 3: Location
Map |
Figure 4: Pier-Ice Interaction |
|
|
|
|
Figure 5: Field Data
Acquisition - SAR Image |
Figure 6: Field Data Acquisition - Ice floe motion
schematic |
Figure 7: Field Data
Acquisition - SAR Map |
Figure 9: Structural
form elements |
|
|
Figure 8: Bridge section profile |
Figure 10: Bridge piers in ice - during construction
phase |
|
9403 |
BRICK DURABILITY ALGORITHM
CLIENT: Public Works Canada DATE: 1994
DESCRIPTION: A computer algorithm developed to assess the
reliability of brickwork in buildings was tested. The algorithm
required a considerable amount of environmental data for typical
urban locations in Canada, and the merging of this data to
obtain frequencies of specific combinations of environmental
conditions. Once the data base had been obtained and analysed,
the algorithm was tested for a number of typical locations to
derive the frequency of failure as defined by spalling of the
brickwork. |
|
Geomatics Projects (1994) |
R9425 |
SPOT
Multispectral Image Deskewing
University of Calgary
Calgary, Alberta, Canada |
R9424 |
Landsat TM
and SPOT Panchromatic Image Mapping for Libya
PanCanadian Petroleum Ltd.
Calgary, Alberta, Canada |
R9423 |
Airborne
SAR Image Processing and Mapping
United Nations Development Programme
Georgetown, Guyana |
R9422 |
Kara Sea
Russian SLAR Image Processing and Ice Interpretation
Amoco Petroleum Co. Ltd.
Tulsa, Oklahoma, USA |
R9420 |
SPOT
Panchromatic Image Mapping of Northern B.C.
Norcen Resources Ltd.
Calgary, Alberta, Canada |
R9419 |
Landsat
Thematic Mapper and SPOT Panchromatic Image Mapping of Turkey
Chauvco Resources Ltd.
Calgary, Alberta, Canada |
R9418 |
SPOT
Panchromatic Image Mapping of the Slave Lake Area, Alberta
Morgan Hydrocarbons
Calgary, Alberta, Canada |
R9414 |
Image
Processing of Northumberland Strait Crossing
Geomatic Technologies Inc.
St. John's, Newfoundland |
R9413 |
Russian
SLAR and ERS-1 Image Processing of Pechora Sea, Russia
Amoco Petroleum Ltd.
Tulsa, Oklahoma, USA |
R9412 |
Landsat TM
Image Mapping of the Chinchaga Area, Alberta
Amoco Canada Petroleum Co. Ltd.
Calgary, Alberta, Canada |
R9411 |
SPOT
Panchromatic Image Mapping of Nacunen, Argentina
Norcen Resources Ltd.
Calgary, Alberta, Canada |
R9407 |
Remote
Sensing for Geology Workshop
Canadian Sedimentary and Petroleum Geologists Conference
Calgary, Alberta, Canada |
R9404 |
Landsat TM
Image Mapping and Geological Interpretation of Blackfoot,
Montana
Numac Petroleum Ltd.
Calgary, Alberta, Canada |
R9402 |
Landsat
MSS Image Mapping of Lacombe County, Alberta
LR Olson and Associated, Ltd.
Rocky Mountain House, Alberta, Canada |
1993
|
To Top of Page |
P9329 |
RISK ANALYSIS OF A GAS TRANSMISSION
PIPELINE TRAVERSING A HIGHWAY CORRIDOR
CLIENT: Canadian Western Natural Gas Company Limited
DATE: 1993
DESCRIPTION: CWNG was proposing to utilize portions of an
existing highway Right-of-way for the installation of a new gas
transmission pipeline loop and in reviewing this proposal,
Alberta Transportation and Utilities questioned what risks the
pipeline may pose to the public using the highway. A public
risk analysis was carried out to measure of both the probability
of a pipeline system failure and leak occurring and the
resulting consequences for the public traveling along the
highway. Concerns about the pipeline location included the
following risk impacts:
a) pipeline construction and operations impact on
highway facilities and vehicle traffic,
b) vehicle accidents impact on pipeline operations,
c) highway maintenance activities impact on pipeline
operations,
d) potential highway widening activities impact on
pipeline operations, and
e) other hazards such as falling rocks impact on
pipeline operations.
The risk analysis included identification of potential hazards,
quantification of pipeline leak frequencies, calculation of leak
consequences, evaluation of risk mitigation measures, estimation
of public risk exposure, and comparison with existing traffic
accident risks. |
P9324 |
SPECIFICATION OF STRUCTURAL CHARACTERISTICS OF MOBILE ARCTIC
CAISSON, MOLIKPAQ
CLIENT: B. Wright and Associates DATE: 1993-94
DESCRIPTION: A 1/30 scale model of the Molikpaq was to be
developed at the National Research Council of Canada ice tank in
Ottawa. In order to construct the model and to provide the
appropriate instrumentation to permit comparisons between the
ice tank results, and the full scale data acquired during the
structure's deployments in the Beaufort Sea, NRCC contracted to
have the necessary structural characteristics provided. As
Bercha had a long history of developing analytical models of the
Molikpaq, they were asked to provide this information. The
information included the overall stiffness of the structural
system as it was deployed at Amauligak I-65, the relative
stiffnesses of the individual structural components, and the
primary load paths, the mass distribution for the same
deployment, and the dynamic characteristics of the system. The
specification of the dynamic characteristics included the
natural frequencies of the complete system, and major
components, and the level of damping of the various components.
This latter parameter included the estimation of damping with
and without the presence of ice. |
P9321 |
FINITE
ELEMENT ANALYSIS OF REINFORCED CONCRETE STACK
CLIENT: Monenco DATE: 1993
DESCRIPTION: TransAlta Utilities, the owner and operator of the
Wabamun electrical generating plant, and the Alberta
Department of the Environment, wished to create additional
access holes in the largest of reinforced concrete stacks in
order to permit sampling of exhaust gases. Prior to the creation
of the holes, they wished confirmation that the holes would not
critically alter the integrity of the stacks. To do this, a
non-linear finite element analysis of a portion of the concrete
stack was carried out under the effects of extreme operating
conditions, and the design wind pressures. Analyses were carried
out both for the current arrangement of holes and with the
proposed additional holes. The analysis was carried out with a
special purpose non-linear finite element program which
accounted for the tension-weak characteristics of concrete, the
presence of reinforcing steel, and the time dependent behavior
of concrete. The results indicated that the proposed additional
holes did not compromise the reliability of the stack. |
P9310
.01 |
ICE LOAD
SENSITIVITY FOR EAST COAST STRUCTURES
CLIENT: National Energy Board DATE: 1993
DESCRIPTION: Sensitivity of specified environmental ice design
loads in accordance with CSA S471. Carried out simulations of
ice forces from impacts by: icebergs, bergy-bits, and sea ice
with fixed and floating production structures in the Hibernia
area of the Grand Banks. The analyses incorporated energy decay
algorithms for the impact analysis with appropriate energy sinks
depending on the particular interaction. For fixed structures
these included crushing of ice as well as elastic structure
response, and iceberg rotation and translation. For floating
structures, local elastic and permanent deformation of the
structure was included. Data on iceberg frequencies, dimensions,
shape, and velocities were obtained from various sources to
provide the most reliable distributions. For bergy-bits, recent
reported data by Crocker was used for the size distribution.
Sensitivities were carried out on ice strength, iceberg
velocity, and iceberg arrival rate. Of these, the first was found
to have the most effect on the specified design forces, while
the second, velocity, was found to have the least effect. |
P9303
.01 |
RISK BASED SITING AND PERMITTING OF HAZARDOUS ENERGY
RELATED FACILITIES CLIENT: County of Santa Barbara, California Utilities
Commission DATE: 1993-1994 DESCRIPTION: The objective of this study was to develop the
basis for a policy on application of risk analysis in the siting
and permitting of hazardous energy related facilities in the
County of Santa Barbara. General classes of facilities
considered explicitly were oil and gas, automotive fuel, and
electrical facilities. Only acute or immediate risks as opposed
to chronic or long term risks were included in the scope of
work. Fundamentals of risk analysis were reviewed to establish a basis
and terminology for the balance of the work. The general
procedures for implementing risk considerations in the planning
process were then described. Results from a review of the general types of hazardous energy
related facilities which exist or may exist in the near future
in the County of Santa Barbara included: a) classification of the facilities into oil and gas,
automotive fuel, and electrical categories and sub-categories
such as gasoline, compressed natural gas, methanol, and
ethanol stations in the automotive fuel category. b) a brief description of the relative hazardousness of
the principal substances handled by the facilities. c) a general description and summary of the hazards
associated with each type of facility. d) a review of both US and worldwide guidelines and
regulations designed to manage acute risks to the public.
e) a discussion of the role of risk analysis in the
context of the planning processes for the County of Santa
Barbara. f) specific recommendations for the implementation of
the results from this work. |
P9302
.01 |
PUBLIC SAFETY AND ENVIRONMENTAL RISK ANALYSIS TRAINING
PROGRAM
CLIENT: Latin American Association of Oil Companies (ARPELL)
DATE: 1993
DESCRIPTION: A formal two day seminar was delivered by two
Bercha principals to forty professional and management level
trainees from nine South American and Central American countries
including Costa Rica, Venezuela, Columbia, Ecuador, Trinidad,
Tobago, Argentina and Peru. The objective was to provide
practical insights for the application of risk analysis to
safety and environmental concerns within the petroleum
industry. This introductory seminar involved preparation and
distribution of a bi-lingual (Spanish and English) 180 page
training work book, presentation of lectures in Spanish and
English (with simultaneous translation), and leading specialized
workshops involving the analysis of practical problems from each
participant's workplace. Certificates of participation were
issued to each trainee. |
P9302
.02 |
RISK ANALYSIS APPLICATIONS FOR THE OIL AND GAS INDUSTRY
CLIENT: Latin American Association of Oil Companies (ARPELL)
DATE: 1993
DESCRIPTION: A three day seminar on risk analysis applications
within the context of the oil and gas industry was conducted.
The seminar was given by two senior Bercha risk experts and
consisted of a meld of lectures and workshops. The presentation
was accompanied by simultaneous translation for the attendees
who numbered in excess of 40. All phases of the risk analysis
process from initiating risk or hazard to detailed consequence
analysis were reviewed and each trainee participated in the
formulation and conduct of a risk analysis project in an area of
professional interest. Certification and performance evaluation
was conducted at the conclusion of the seminar.
|
P9301 |
DEVELOPMENT OF RISK MANAGEMENT PROGRAM FOR THE
ENGINEERING, CONSTRUCTION, AND
OPERATION OF HIGH PRESSURE SOUR GAS LINE
CLIENT: Shell Canada Limited
DATE: 1993
DESCRIPTION: A risk management program was developed for the
operation of a high-pressure sour gas pipeline from a gathering
system to a sour gas treatment plant. All potential pipeline
system failure scenarios such as thermal stress, differential
settlement, third party effects, and other scenarios identified
in previous studies by the Bercha Group were considered in this
program. These scenarios were prioritized through the
assignment of risk indices, considering probability and
consequence severity, and a series of mitigative measures were
developed and evaluated quantitatively. A specific risk
management plan detailing the mitigative measures, technical
responsibilities, and implementation procedures was then
developed to address each principal risk scenario. Bercha risk
analysts and engineers advised the Shell project and operating
personnel in conjunction with the Shell engineering partner
responsible for design and construction. |
|
Geomatics Projects (1993) |
R9332 |
SPOT
Panchromatic Image Mapping of Lago Pellegrini Este, Argentina
Chauvco Resources Ltd.
Calgary, Alberta, Canada |
R9331 |
SPOT
Panchromatic Image Processing and Mapping of the Covunco Block,
Argentina
Alberta Energy Company
Calgary, Alberta, Canada |
R9323 |
Landsat
MSS Image Processing and Mosaicking of Benin
ABACAN
Calgary, Alberta, Canada |
R9322 |
SPOT
Panchromatic Image Processing and Mapping of Neuquen, Argentina
Chauvco Resources Ltd.
Calgary, Alberta, Canada |
R9318 |
Seminar
on Remote Sensing Project Management and Applications for
Environmental Monitoring
Caracas, Venezuela
Date completed: November 1993
Canadian International Development Agency
DESCRIPTION: The Bercha Group formulated
curriculum, produced a manual, and conducted a technical seminar
in Caracas, Venezuela as part of a Public Safety and
Environmental Risk Management seminar series conducted in
association with Geoexpert C.A. of Caracas. The three-day
technical seminar covered a wide range of subjects, including:
an introduction to remote sensing, general examples for
environmental monitoring, sensor systems and airborne
acquisition platforms, satellite sensors, manual interpretation,
digital image processing, methods of map production from
remotely sensed imagery, and applications to environmental
monitoring. Although conducted in English, simultaneous
translation occurred during the seminar, and seminar materials
were available in both Spanish (Figure 1) and English.
The general objectives of this seminar were to provide managers,
administrators, and other decision makers with a general
understanding of the principals and applications of remote
sensing with emphasis on environmental monitoring so that they
can apply this understanding of remote sensing and its
capabilities in support of management decisions. To achieve this
general objective, the seminar focused on facilitating
participants' understanding in the 10 key areas shown in Figure
2. An environmental monitoring example from the seminar is shown
in Figure 3.
SERIE DE SEMINARIOS
SEGURIDAD PUBLICA Y MANEJO DEL RIESGO
AMBIENTAL
CARACAS, VENEZUELA
SEMINARIO TECNICO 1B
APLICACIONES DE LA PERCEPCION REMOTA
AL MONITOREO AMBIENTAL
POR
BERCHA GROUP
CALGARY, CANADA
EN ASOCIACION CON
GEOEXPERT C.A.
CARACAS, VENEZUELA
NOVIEMBRE 1993 |
The Seminar's Specific Objectives
1. Understanding of the applications of remote sensing
for environmental monitoring.
2. An assessment of the capabilities of remote sensing
to determine whether or not it can assist in specific
problems or applications in environmental monitoring.
3. Ability to plan a remote sensing project for a
specific application.
4. Familiarity with standard remote sensing technology.
5. Understanding the differences among remote sensing,
GIS, and classical photogrammetry.
6. an appreciation of the types, formats, precisions,
and accuracies of information recorded by remote sensing
systems.
7. General understanding of what satellite systems are
available for different applications.
8. Familiarity with the principles of manual and digital
image interpretation to obtain information from remote
sensing images.
9. An understanding of digital processing techniques
which are available for the extraction of information
from remote sensing data.
10. An understanding of the important parameters such as
cost, schedule, regional as opposed to detailed
coverage, resolution, precision, and accuracy considered
in the development of an application-specific remote
sensing program. |
Figure 1: Spanish cover |
Figure
2: Ten Key Areas |
|
Figure
3: Seminar example
Click on image for
enlarged view |
|
R9317 |
Vegetation
Change Detection using LANDSAT MSS Imagery in the Cold Lake
Region, Alberta
Amoco Canada Petroleum Co. Ltd.
Calgary, Alberta, Canada |
R9309 |
Thematic
Mapper Image Processing, Tunisia
Wascana Resources Limited |
R9308 |
Satellite
Data and SAR Processing for Mineras Estratos
E. Valero, Venezuela |
R9305 |
Satellite
Data and SAR Processing for Marawani Concession
Organization Cisneros, Venezuela |
1992 |
To Top of Page |
P9231.02 |
REGIONAL
ICE MODEL THERMODYNAMICS
CLIENT: Atmospheric Environment Services, Ice Centre DATE: 1992
DESCRIPTION: The study consisted of a review of existing forms
of the regional ice model utilized for the prediction of short
and long term ice motion and ice climatology, followed by the
development of specific algorithms for improving modelling
accuracy and efficiency. Model performance was evaluated through
comparison to a series of real time ice observations obtained
from airborne radar and satellite data.
|
P9231.01 |
INVESTIGATION OF ICE GROWTH AND DECAY SCHEMES FOR REGIONAL ICE
CLIENT: Ice Centre - Environment Canada DATE: 1992-3
DESCRIPTION: Scientific assessment of existing ice growth and
decay models for possible incorporation in the Multi-Category
Regional Ice Model (MCRIM). A team of experts was assembled to
review possible approaches and recommend models which could be
included in MCRIM without altering the basic dynamic formulation
and which would permit MCRIM to execute in an operational mode.
The experts recommended a two-part approach: the Semtner
zero-layer model for basic ice cover and a wave-driven model for
edge effects. Algorithms were developed and coded into MCRIM as
new subroutines which could be executed as options. All of the
new coding was fully documented. A comprehensive series of
sensitivity analyses were carried out to illustrate the effect
of the new modelling on ice growth and decay at the top and
bottom surfaces of the ice/snow slab. The necessary additional
data to permit MCRIM to run with the new algorithms was
obtained. Further, new data for the verification periods (see PA
9114) was also obtained. The verification procedures for the two
periods for the east coast were run in a series of analyses to
illustrate the effect of the new algorithms on ice edge movement
and ice concentrations.
|
P9228 |
COMMISSIONING AND START UP OF OPERATIONS
READINESS REVIEW FOR A WORLD SCALE
SOUR GAS PRODUCTION SYSTEM AND TREATMENT PLANT
CLIENT: Shell Canada Limited
DATE: 1992
DESCRIPTION: An operational readiness review was carried out on
a world scale sour gas production and treatment facility at
Caroline to identify any critical deficiencies or concerns in
the commissioning and start up plans. The review team included
risk consultants in addition to independent operating personnel
with instrumentation, operations, and maintenance experience. A
broad cross section of the facilities operating team, including
contractors, was interviewed to identify significant concerns,
which may delay or endanger a smooth start up. The review was
restricted to commissioning and start up and did not address
steady state operations nor did it involve a detailed inspection
of equipment. The review did provide an assessment of the
management systems and implementation program performance.
Results from the operational readiness review included
identification of the principal concerns among the following
categories: (a) Organization, (b) Safety Procedures, (c) Equipment Readiness, (d) Training, and (e) Emergency Response.
Following the identification of concerns, conclusions were
presented which prioritized the concerns so they could be
effectively addressed. In addition, any exceptional aspects of
the commissioning and start up plans as presently being
implemented were highlighted.
|
P9227 |
PUBLIC AND ENVIRONMENTAL RISK ANALYSIS OF A REFINED OIL
PRODUCTS PIPELINE
CLIENT: Interprovincial Pipe Line Inc.
DATE: 1993
DESCRIPTION: The risk analysis methods employed in this project
included a systems failure modes, risk and criticality analysis
and an example worksheet from this task is attached.
|
P9219 |
RESEARCH
AND DEVELOPMENT OF FINITE ELEMENT SOFTWARE
CLIENT: National Research Council of Canada DATE: 1992
DESCRIPTION: A series of Finite Element Software programs which
were originally developed as research tools were modified and
augmented to allow their execution on IBM PC compatible
computers. These improvements included, in some cases,
whole-scale modifications to the original code to eliminate
dated Fortran usage and introduce memory management processes
prevalent in desktop PC's. Other improvements included the
introduction of pre- and post-processors which simplified the
preparation of data input, and the interpretation of output
results. These were set up to run under a Windows environment.
Finally, the ability to output results graphically was also
added to the programs. This latter improvement required the
creation of complex data management routines to permit user
control of the results being output, and the orientation and
scale of the plot. |
P9215 |
SYSTEMS FAILURE MODE ANALYSIS OF OIL PRODUCTION AND
PIPELINE FACILITIES
CLIENT: Husky Oil
DATE: 1992
DESCRIPTION: A systems failure mode analysis (SMFA) was carried
out on two major oil pipeline terminals in order to identify
potential significant failure modes associated with both the
equipment and its operation, and to rank the associated risks.
Following reviews of the engineering documentation and
interviews with site personnel, each terminal facility was
subdivided into individual systems and associated subsystems for
the SFMA. The objective of the system breakdown used was to
provide the framework for identifying significant failure modes,
which would impact throughput, cost, safety, or the
environment. A systems approach was taken in order to screen
high priority risks with an optimum level of manpower
resources.
|
P9213 |
LEAK HAZARD ANALYSIS OF A HIGHER PRESSURE NATURAL GAS
PIPELINE
CLIENT: Westcoast Energy Inc.
DATE: 1992
DESCRIPTION: During construction of the new natural gas pipeline
from the mainland to Vancouver Island, British Columbia, there
was concern regarding potential hazards from an industrial
facility located near the pipeline right of way. A study was
therefore carried out to estimate the hazards resulting from any
leak from the pipeline. Safety and property hazard zones, as
defined by delayed or immediate ignition of potential leaks,
were estimated using consequence models. Plume dispersion
calculations were performed using the GASCON 2 model, while the
effects on people from a fire were estimated based on the
approach developed by Considine and Grint and using the probit
equation of Eisenberg. The effects of thermal radiation on
surrounding property were also evaluated using empirical data.
|
P9212 |
PROBABILISTIC ANALYSIS OF RESIDENTIAL AND INDUSTRIAL
DEMAND FOR NATURAL GAS FROM A
REGIONAL DISTRIBUTION SYSTEM
CLIENT: Northwestern Utilities Limited
DATE: 1992
DESCRIPTION: The client contracts for natural gas supply from a
variety of producers, then provides an integrated delivery
system of natural gas to many communities in the north central
region of the province of Alberta. The majority of natural gas
is supplied on an as and when required basis, however a number
of large industrial users contract to specific delivery
amounts. In order to design the gas delivery system including
capacity requirements for underground storage, the client must
estimate the maximum total gas demand, which consists of both
temperature dependent and temperature independent components.
Current designs were developed from worst case scenarios and the
objective of the present study was to convert such criteria to a
probabilistic basis more representative of the factors affecting
the delivery system. An in-depth probabilistic analysis was
therefore carried out on the extensive environmental data bases
and gas consumption records for the client delivery system. The
detailed design criteria for both the temperature dependent and
temperature independent components of the gas load were
evaluated and compared to the total gas load on the system.
|
P9208 |
SIMULATION
AND MODELING SERVICES FOR NORTHUMBERLAND STRAIT PROJECT
CLIENT: Delcan/Stone and Webster Joint Venture DATE: 1992-3
DESCRIPTION: Continued work on the Jamming and Break-Up
modelling for the Northumberland Strait Crossing Project as part
of the Ice Committee's mandate to determine the impact of any
bridge on the ice regime. Subsequently examined the winning
design (SCI) and sensitivities of the jamming and break-up
models to winter severity. Consulted with SCI, C-Core, and
independent engineer on the ice forces on the piers, providing
expert advice on the ice conditions in the Strait as well as
executing independent calculations of ice forces for Public
Works Canada. Initial calculations were on the original 8m
cylindrical design and subsequent calculations on various forms
of conical design. Work involved refinement of three-dimensional
conical failure mechanisms for ice sheets with rubble and ridge
keels. Provided advice to Public Works Canada on the reports
from C-Core to SCI and the reports by the independent engineer,
Buckland and Taylor. |
P9206 |
COMPARISON OF RISKS BETWEEN ALTERNATIVE RAIL AND TRUCK
MODES FOR TRANSPORTING LPGs
CLIENT: Shell Canada Limited
DATE: 1992
DESCRIPTION: An investigation was carried out on the risk
impacts from changing the mode of liquid petroleum gas (LPG)
transportation in Eastern Canada from a rail operation to a
truck operation. Of particular interest was the potential
relative change in risk exposure corresponding to a change in
transportation mode. The work was commissioned in phases, beginning with a top
level analysis for management and continuing with a more
detailed analysis providing a site and operation specific
comparison. The preliminary risk analysis provided a management
overview of historical rail and truck accident and release
frequencies, in addition to the distribution of consequence
hazard zones associated with an LPG release. Frequency analyses
for both modes of transportation were based on analyses of
published generic data for the transportation industry in Canada
and North America. The consequence analysis involved both a
statistical analysis of historical accident consequences and
modeling of potential spill consequences in order to determine
the associated hazard distances. The second phase of work continued with a more detailed
analysis of site specific accident data and public exposure
data. |
P9205 |
FINITE
ELEMENT ANALYSIS OF REINFORCED CONCRETE STACK
CLIENT: Monenco DATE: 1992
DESCRIPTION: TransAlta Utilities, the owner and operator of the
Wabamun electrical generating plant, and the Alberta
Department of the Environment, wished to create additional
access holes in the two of reinforced concrete stacks in order
to permit sampling of exhaust gases. Prior to the creation of
the holes, they wished confirmation that the holes would not
critically alter the integrity of the stacks. To do this, a
non-linear finite element analysis of a portion of the concrete
stack was carried out under the effects of extreme operating
conditions, and the design wind pressures. Analyses were carried
out both for the current arrangement of holes and with the
proposed additional holes. The analysis was carried out with a
special purpose non-linear finite element program which
accounted for the tension-weak characteristics of concrete, the
presence of reinforcing steel, and the time dependent behaviour
of concrete. The results indicated that the proposed additional
holes did not compromise the reliability of the stacks. |
P9203 |
PUBLIC RISK FROM SINKHOLES ON ARCTIC HIGHWAYS
CLIENT: Government of Northwest Territories, Department of
Transportation
DATE: 1992
DESCRIPTION: Due to a concern about the potential for vehicular
accidents resulting from the occurrence of sudden sinkholes in
the driving lanes of the Dempster Highway, a risk analysis was
carried out and the results were quantitatively compared with
those normally occurring risks associated with highway travel.
Results included an assessment of culvert and
sinkhole data based on highway surveys and an evaluation of
traffic and accident data based on additional highway surveys.
Risk estimates were presented in the form of annual frequencies
for an accident, an injury, or a fatality occurring as a result
of an interaction with a sinkhole in one of three portions of
the Dempster Highway and in one of four months of the year in
which sinkholes occur. Quantified risk estimates were then
compared with other risks from common experience and a
sensitivity analysis of the risk estimates was presented. |
P9202 |
EVALUATION OF DIFFERENCES BETWEEN TWO GAS PLANT AND
PIPELINE RISK ANALYSES
CLIENT: County of Santa Barbara, California Gas Commission
DATE: 1992
DESCRIPTION: The County of Santa Barbara is involved in the
approval process of industry applications for the development
and operation of oil and gas facilities. In this capacity
it received at different times two reports of risk analyses
carried out for the same gas plant and pipeline facilities which
appeared to present conflicting results. The objective of
this evaluation was to identify the basis for the conflicting
results and present recommendations for the County to resolve
this matter.
The large volume of documentation in each report was distilled
into simplified difference tables for each of the six process
steps previously identified. Each of the differences identified
were evaluated in terms of assumptions, methods, and results
then the more appropriate analysis applications were discussed
based on the available information. Finally, recommendations
were presented to the County for consideration in its review of
an industry application and potential conditions for approval.
|
P9201 |
ANALYSIS OF GAS RELEASE FREQUENCIES FOR PRODUCTION WELLS
CLIENT: AMOCO U.S.A.
DATE: 1992
DESCRIPTION: The objective of the work was to estimate the
potential for a release or blowout of sweet gas from any of the
over 3,000 client production wells in the San Juan Basin in New
Mexico. The hazard of concern was a release or blowout of sweet
gas, which ignites with the thermal radiation or flame impact
reaching the nearby public. Although most production wells were
in remote locations where the public would rarely be exposed, a
number of well sites were in urban areas with increased public
exposure. The frequency analysis included estimation of the
frequency of production well releases according to release
characteristics, evaluation of causal factors, and assessment of
the frequency estimate sensitivity to these causal factors. Results from the frequency analysis were integrated with
a client consequence analysis in order to assess the public risk
and determine optimal operational policies to mitigate these
risks. |
|
Geomatics Projects (1992) |
R9234 |
SPOT
Panchromatic Image Mapping
PanCanadian Petroleum Limited
|
R9232 |
Oil Field
Mapping with High Resolution SPOT Imagery
Chauvco Resources Limited
|
R9229 |
Development of Algorithms for the Interpretation of Digital
Radar Imagery
National Research Council of Canada
|
R9223 |
Satellite
Data of SAR Processing for Rio Icabaru Concession
H.I. Gibelli, Venezuela
|
R9222 |
SPOT Image
Mapping, Alliance, Alberta
PanCanadian Petroleum Limited
|
R9220 |
Rio
Icabaru SAR Survey
Golden Star Resources
|
R9217 |
Digital
Analysis of Multiband Data for Sumatra
Asamera and Gulf Canada
|
R9216 |
Stereo
SPOT DEM Development and Processing
Canadian Occidental Petroleum Limited |
R9211 |
Analysis
of TM Data for Sumatra Geology
Bow Valley Resources |
R9207 |
Detection
of Oil Seepage Using Satellite Data
Canadian Occidental Petroleum Limited |
R9204 |
Identification of Burrowing Owl Habitat Risk in Southern Alberta
Using Landsat TM Imagery: A Preliminary Investigation with GIS
Canadian Wildlife Service |
1991 |
To Top of Page |
P9119 |
PRE-COMMISSIONING OPERATIONS AUDIT AND OFFSITE PRELIMINARY
RISK ASSESSMENT FOR A LARGE-SCALE
CRUDE OIL UPGRADING FACILITY
CLIENT: Husky Oil Bi-Provincial Upgrader, Saskatchewan
DATE: 1992
DESCRIPTION: Husky Oil Operations Ltd. as Project Manager of the
Joint Venture partners including Husky Oil, the Canadian Alberta
and Saskatchewan Governments, and HRI constructed the
Bi-Provincial Upgrader (BPU) to produce synthetic crude and
asphalt from a 65%/35% volumetric blend of Lloydminster and Cold
Lake heavy oils, respectively. The study was carried out as
part of the Pre-Commissioning activities for the BPU and
included an operational audit and an offsite risk assessment. A Pre-Commissioning Audit of the BPU was carried out to
ensure operational readiness for commissioning and operating the
facilities through the identification of critical deficiencies
or concerns in the start-up plans. An independent audit team
interviewed a broad cross-section of the BPU staff in order to
identify problem areas, potential difficulties, or concerns,
which had the potential to delay or endanger a smooth start-up
of the facilities. Results included a list of
prioritized concerns in the areas of organization,
procedures/safety, equipment readiness, training, emergency
response and unit specific concerns. These results provided a
basis for pro-active measures to increase the potential for a
successful start-up of a very large and complex process
facility. |
P9117 |
DEVELOPMENT OF A POLICY PAPER ON GAS
PIPELINE SAFETY
CLIENT: County of Santa Barbara, California Gas Commission
DATE: 1991
DESCRIPTION: The County of Santa Barbara commissioned the
development of a policy paper as part of its continuing efforts
as a regulatory agency overseeing gas pipeline safety. The
objectives of the paper were to provide a perspective on safety
of pipelines by identifying the principal causes of pipeline
accidents, reviewing potential consequences, investigating and
reporting on various ways of introducing the likelihood of
ruptures and consequences, and recommending an optimal safety
enhancement pipeline strategy for the County based on a risk
analysis approach. A systematic approach to the evaluation of pipeline safety
was made through the use of risk analysis. Practical measures to enhance pipeline
safety were developed for both accident prevention and
consequence mitigation. Measures were identified in the general
areas of information management, regulations, land use, training
and education, right-of-way management, emergency response, and
pipeline operations including design, construction, and
operation. A pipeline safety strategy was recommended based on
a systematic approach to risk reduction.
|
P9107 |
EMERGENCY PLANNING FOR CAROLINE SOUR GAS PRODUCTION WELLS,
GATHERING PIPELINES AND GAS PLANT,
SAFETY CASE APPROACH
CLIENT: Shell Canada Limited
DATE: 1991
DESCRIPTION: In a previous project, PA8820, an emergency risk
analysis was carried out on the facilities required to develop a
large sour gas reservoir in the Caroline Area of Alberta.
Results included a quantification of risks to provide a basis
for implementing optimum risk mitigation measures. Included in
these measures were impacts associated with emergency response
procedures. Consequence scenarios numerically modeled included
toxic gas, fire, explosion, pool fire, BLEVE, and fireballs. The present project involved integrating the previous risk
analysis work into the planning and implementation of emergency
response procedures. Impacts for risk mitigation associated
with alternative emergency response procedures were analyzed.
Then, results were prepared in order to assist in the meaningful
communication of risk and the effects of applying emergency
response procedures. Explaining the plans for emergency
response was a critical objective of the client because of the
significant public involvement. In addition, industry
technical, operational, and maintenance personnel and regulatory
authorities were also involved in the process of understanding
risk and the implications for emergency response plans.
|
P9102 |
LEAK DETECTION IMPACTS ON PIPELINE RISKS
CLIENT: Shell Canada Limited
DATE: 1991
DESCRIPTION: A previous project, PA8314, involved the analysis
of public risks and consequences of a release of sour gas from a
field gathering system. Risks were quantified based on the
potential for a full pipeline rupture and the assumption that
within 5 minutes of such a rupture, the pipeline pressure
sensors would activate line block valves and thereby limit the
size of potential release. In a more recent project, PA8820,
numerical modeling of pipeline releases included the pressure
transient time history, which determines pressure sensor
detection capabilities. Calculations proved that leak sizes
smaller than a full pipeline rupture may result in greater
hazards due to the time response of pipeline pressure sensor
detection. The effects of such a scenario on the risks
previously estimated for the PA8314 project were assessed in the
present project. Results included an analysis of the relative individual
risk between a full pipeline rupture and various pipeline leaks.
The impact of leak detection directly affected the individual
risk results. |
|
Geomatics Projects (1991) |
R9118 |
SAREX-92
SAR Data Acquisition and Processing
European Space Agency
Date completed: January 1993
DESCRIPTION: In October of 1991, The Bercha Group with
principal subcontractor Innotech Aviation Limited, was awarded
ESTEC Contract No. 9643/91/NL/S2, entitled “Technical Support
for the Implementation of the SAREX-92 Campaign”.
The work under this contract entailed a
preparatory and planning phase, an airborne data acquisition
phase, and a post-flight phase dedicated to documentation and
data processing. This work was carried out between November 1st,
1991, and October 15th, 1992.
The planning phase involved specification of target
areas, flight planning, permits and clearances, and
administration for logistic provisions. SAREX-92 data
acquisition involved the Convair 580 equipped with the C/X SAR
instrument (Figure 1a), and flights over test sites in
Venezuela, Guyana, French Guiana, Brazil, Colombia and Costa
Rica (Figure 2). Mobilization took place from Ottawa on April
1st, 1992, and after a successful data acquisition program the
aircraft returned to Ottawa on May 3rd, 1992. In addition to the
SAREX-92 program funded by ESA, some data acquisition was
undertaken for CCRS in Brazil, Costa Rica and Guyana.
The data processing phase involved preparation of
documentation, the transcription of the high density digital
tapes (HDDTs) (Figure 3) to Exabyte computer compatible tape,
slant to ground range and radiometric rectification, and
production of image tapes and hard copy images. This phase of
the program was carried out between May 1992 and October 1992.
Figure 4 illustrates the operational
configuration of the aircraft and image swath. Figure 5 shows a
sample SAR image.
|
|
|
Figure 1a: Convair
580 equipped with the C/X SAR instrument |
Figure 1b: Cockpit of Convair 580 |
Figure 2: Area Map
Click on image to
enlarge |
|
|
|
Figure 3: The system used for SAREX was capable of
recording full resolution, full swath images in 8 bit
format on high density digital tape (HDDT). The HDDT
console is shown here |
Figure 4: Illustration of the operational
configuration of the aircraft and image swath. The
system has the capability to obtain imagery utilizing
both X- and C-band radiation.
Click on image to
enlarge |
Figure 5: Sample high resolution C-Band SAR image |
|
R9115 |
Wildlife
Habitat Classification for GIS Analysis
Canadian Wildlife Service
|
R9109 |
Integration and Processing of Satellite Gravity and Magnetic
Data for Offshore Prospect Evaluation
Canadian Occidental Petroleum Limited
|
R9108 |
Landsat TM
Image Interpretation: British Columbia
Conoco Canada Ltd. |
R9106 |
SLAR Ice
Image Data Management System Software Development
Amoco Canada Ltd. |
R9105 |
Course on
Applications of Remote Sensing to Geology
Petro-Canada Resources Ltd. |
1990 |
To Top of Page |
P9026 |
ICE
BREAKUP MODELLING FOR NORTHUMBERLAND STRAIT
CLIENT: Delcan/Stone & Webster DATE: 1990/91
DESCRIPTION: The work undertaken in this project was carried out
in association with a committee of ice experts to develop
predictive models for the influence of the construction of a
bridge across Northumberland Strait on the length of the ice
season and the characteristics of the breakup season. Two
approaches were developed, one based on a correlation between
ice volume and the length of the ice season, and the other based
on an analytical model of the ice breakup season itself. This
latter model included the effects of ice transport, underside
decay, and topside decay of the ice cover. The model was
developed such that the influence of a bridge could be
determined through its effect on transport of ice between zones
within the Strait. The model was supported by a comprehensive
dataset of wind events, tidal velocities, air temperatures, and
solar radiation. The model was hindcast against 20 years of
records of breakup seasons in which the model was verified at
intervals throughout the season, as well as at the date of last
ice. The results of the hindcast analysis were excellent
illustrating a very high level of correlation between actual and
analyzed results. Using the breakup model as developed, a series
of simulations, each involving 1,000 years, was then run for a
variety of bridge configurations. For each analysis, the model
was executed for the breakup season both with and without the
bridge and the difference in dates of last ice used to establish
the impact of the bridge upon the length of the ice season in
the Strait. The results of these simulations indicated that, on
the average, the presence of the bridge tended to accelerate the
breakup due to the increased underside melting of ice blocked
from passage by the bridge. The extreme results indicated very
slight delays in ice-out of the order of one day.
|
P9019 |
RISK ANALYSIS OF ALTERNATE DEVELOPMENT
STRATEGIES FOR A NEW TAR SANDS MINE
CLIENT: Syncrude Canada Ltd.
DATE: 1990
DESCRIPTION: Syncrude Canada Ltd. operates an extremely large
oil sands mining, extraction and processing operation some forty
kilometers north of Fort McMurray, Alberta. In order to
maintain or expand current production levels, it will be
necessary to open up a new mine and an engineering screening
study was carried out to identify, evaluate, and select for
subsequent more detailed assessment in the design basis
memorandum phase, the most promising integrated mining,
transportation, and extraction systems. As part of the engineering screening study, the Bercha
Group provided consulting services to develop and implement a
risk assessment program. A large number of options or
alternative designs were studied, and one of the ranking
criteria was to screen high priority options according to risk.
The risk assessment program identified and evaluated the major
technical, implementation and operational risks associated with
each integrated system alternative, in order to determine if any
risks were of sufficient magnitude to affect capital and
operating cost estimates. A ranking index was developed based on a
comparison of the alternative design with that existing in
current operations. Results from the risk assessment were
included as one of the criteria used to rank the most promising
conceptual engineering designs for future mine development.
|
P9018 |
RISK ASSESSMENT SURVEY OF OPERATING FACILITIES
CLIENT: Esso Petroleum Canada
DATE: 1990
DESCRIPTION: The client was embarking on a program to promote
operational excellence in all of its diverse operating
facilities throughout Canada. It was decided to include a
preliminary risk assessment survey of all facilities and this
project involved the development and presentation of an
intensive training program for the client survey team.
Technical personnel were recruited from all regional operations
and introduced to the program concepts through written
materials. All members then met as a team in one location to
take an intensive three-day training course and workshop.
Following the training session, the Bercha Group provided
consulting services for each of the teams as they carried out
their surveys. The training workshop began with lectures on risk
assessment principles, including definitions and applications.
The suite of preliminary risk assessment methods, such as What
If analysis and risk logic diagrams, were then presented.
Following a review, workshop assignments provided the practical
experience necessary to actually undertake the required
surveys. Finally a full blown preliminary risk analysis was
carried out on an actual facility through role assignments
within the classroom setting. |
P9015 |
RELIABILITY STUDY OF COAL STOCKPILES REQUIRED FOR
ELECTRICAL THERMAL PLANTS
CLIENT: TransAlta Utilities
DATE: 1990
DESCRIPTION: As the Provincial Regulatory Body, the Public
Utility Board questioned the coal stockpile inventory maintained
at four thermal plants operated by two utility companies. In
essence, costs had to be justified in terms of the risks
associated with not supplying the required demand. The reliability of each thermal plant's stockpile was
analyzed based on the mining process used to feed each of these
stockpiles. The overall process material flow was divided into
sequential events which represented the chronology of operations
carried out to deliver coal to the stockpile. Operations logic
diagrams were derived to assess the sequence of operational
events and available contingency action steps should the
material flow be interrupted. The impact of each operational
problem was characterized by the shortfall in rate at which coal
was stockpiled and the length of time of disruption. All
significant material flow interruptions were then analyzed in
terms of varying levels of contingent action and existing
redundancies incorporated in both design and operations. The
scope of analysis included the complete cycle from planning
through excavation, to stockpiling. |
P9012 |
ENVIRONMENTAL IMPACT ASSESSMENT FOR PROPOSED EXPANSION OF
THE ALBERTA SPECIAL WASTES
TREATMENT CENTRE
CLIENT: Alberta Special Waste Management Corporation
DATE: 1990/91
DESCRIPTION: Previous projects, PA8519, PA8420, PA8410, and
PA8008 all involved various risk analyses which were carried out
for different Government of Alberta departments to support the
program being developed to treat hazardous wastes within the
province. The above referenced project, PA9012, was a
continuation of the previous risk assessment work and was
required to support an EIA for a proposed expansion of the
existing waste treatment centre. Special or hazardous wastes
are collected from generators throughout the province and
transported directly or through transfer stations to the
treatment centre located in Swan Hills, Alberta. The proposed
expansion involved a substantial increase in the volume of
hazardous wastes being transported on Alberta roadways and
therefore a revised transportation risk assessment was included
in the proposal EIA. In addition to the accident and spill
analyses, consequence analysis of potential spills of hazardous
wastes for both the public and environment were included in the
scope of work. Risks associated with the existing operation
were compared to those estimated for future operations of an
expanded facility. Results from the risk assessment were
published in the EIA documents and then were presented and
defended during public hearings. |
P9011 |
RISK ASSESSMENT FOR AN ENVIRONMENTAL CLEAN-UP STUDY OF 21
DEW LINE SITES IN CANADA
CLIENT: Canadian Commercial Corporation, on behalf of The United
States Air Force
DATE: 1990/91
DESCRIPTION: As part of the 1985 agreement between Canada and
the United States to modernize the North American Air Defence
System, the Dew Line System is being replaced by the North
Warning System. An environmental clean-up study of the 21 Dew
Line Sites was commissioned in order to identify and investigate
areas impacted by past waste disposal and spills and to
determine and evaluate alternatives for the disposal of waste
and remediation of spill areas. A baseline risk assessment was
carried out to document the magnitude of potential health and
environmental risks at each of the 21 Dew Line sites and to
provide a site specific quantification of risks to provide the
basis for developing cleanup strategies. The baseline risk assessment methodology was based on
that developed by the U.S. E.P.A. in their Risk Assessment
Guidance for Superfund. The results of the baseline risk assessment were
quantitative and qualitative characterizations of risk based on
site specific exposure and toxicity assessments. Both
non-carcinogenic and carcinogenic risks were characterized for
each contaminant at each site. Non-carcinogenic hazard
quotients were estimated to compare the level of site
contamination to the potential hazard level. Finally,
carcinogenic risk was estimated in terms of the incremental
probability of an individual developing cancer over a lifetime
as a result of exposure to the site. |
P9009 |
MOLIKPAQ
MODELLING, PHASE VII, FINAL MODEL TUNING AND VERIFICATION
CLIENT: Gulf Canada Resources Limited DATE: 1990
DESCRIPTION: The objectives of this final phase of the
development of a non-linear lumped mass model for the Molikpaq
involved the verification and final tuning of the model on the
basis of a series of actual ice interaction events monitored in
1985 and 1986. Before carrying out the final model tuning, all
aspects of the model were thoroughly reviewed to ensure the
appropriateness of the various stiffness, mass, and damping
values being used. The sensitivity of the model output to
various analysis parameters was determined prior to the actual
analyses being carried out. The objective of this phase was to
carry out a series of analyses of actual events in which only
the properties of the ice sheet were varied, reflecting the
actual conditions during interaction. The same structural model
for the caisson, core, and berm, was used throughout. The
results were highly encouraging in that excellent agreement was
obtained between analytical and measured values of accelerations
and displacements for a variety of locations throughout the
structural system. The correspondence between both the period,
and the amplitude, of the response was excellent, as was the
overall shape of the response. The results indicate that it is
possible to develop simple analytical tools capable of modelling
complex non-linear dynamics of offshore marine structural
systems.
|
|
Figure 1: The Molikpaq |
Figure 2: Example finite element model
schematic section.
Click on image to enlarge |
|
P9002 |
NGL STORAGE TANKS HAZARD ASSESSMENT
CLIENT: Interprovincial Pipeline Company
DATE: 1990
DESCRIPTION: The client had contracted for a novel design of an
underground natural gas liquids (NGL) storage facility and due
to potential public exposure, our firm carried out a hazard
mitigation assessment of the proposed project. The scope of
work included a preliminary hazard analysis to define potential
hazards and a consequence analysis to generally quantify general
public consequences and hazards distances. Hazards were
identified through an analysis of historical worldwide instants
and a hazard and operability (HAZOP) study. Consequence
analyses were modelled in terms of release, dispersion, and
ignition characteristics in order to define public hazard
distances. Finally hazard mitigation measures were evaluated
both in terms of prevention through measures such as inherent
design considerations or safety protection systems, in terms of
consequence mitigation should the hazards in fact occur. |
|
Geomatics Projects (1990) |
R9023 |
Feasibility Evaluation of Developing a Processing Capability for
Improved SLAR Resolution
National Research Council of Canada
|
R9020 |
Remote
Sensing Consulting Services
Gulf Canada Resources Ltd.
|
R9012 |
Environmental Impact Assessment for Proposed Expansion of the
Alberta Special Wastes Treatment Centre
CLIENT: Alberta Special Waste Management Corporation
DATE: 1990/91
DESCRIPTION: Previous projects, PA8519, PA8420, PA8410, and
PA8008 all involved various risk analyses which were carried out
for different Government of Alberta departments to support the
program being developed to treat hazardous wastes within the
province. The above referenced project, PA9012, was a
continuation of the previous risk assessment work and was
required to support an EIA for a proposed expansion of the
existing waste treatment centre. Special or hazardous wastes
are collected from generators throughout the province and
transported directly or through transfer stations to the
treatment centre located in Swan Hills, Alberta. The proposed
expansion involved a substantial increase in the volume of
hazardous wastes being transported on Alberta roadways and
therefore a revised transportation risk assessment was included
in the proposal EIA. In addition to the accident and spill
analyses, consequence analysis of potential spills of hazardous
wastes for both the public and environment were included in the
scope of work. Risks associated with the existing operation
were compared to those estimated for future operations of an
expanded facility. Results from the risk assessment were
published in the EIA documents and then were presented and
defended during public hearings.
|
R9011 |
Risk Assessment for an Environmental Clean-Up Study of 21
Distant Early Warning (DEW) Line Sites in Canada
CLIENT: Canadian Commercial Corporation, on behalf of The United
States Air Force
DATE: 1990/91
DESCRIPTION: As part of the 1985 agreement between Canada and
the United States to modernize the North American Air Defence
System, the DEW Line System is being replaced by the North
Warning System. An environmental clean-up study of the 21
DEW Line Sites was commissioned in order to identify and
investigate areas impacted by past waste disposal and spills and
to determine and evaluate alternatives for the disposal of waste
and remediation of spill areas. A baseline risk assessment
was carried out to document the magnitude of potential health
and environmental risks at each of the 21 DEW Line sites and to
provide a site specific quantification of risks to provide the
basis for developing cleanup strategies. The baseline risk assessment methodology was based on
that developed by the U.S. E.P.A. in their Risk Assessment
Guidance for Superfund. The results of the baseline risk assessment were
quantitative and qualitative characterizations of risk based on
site specific exposure and toxicity assessments. Both
non-carcinogenic and carcinogenic risks were characterized for
each contaminant at each site. Non-carcinogenic hazard
quotients were estimated to compare the level of site
contamination to the potential hazard level. Finally,
carcinogenic risk was estimated in terms of the incremental
probability of an individual developing cancer over a lifetime
as a result of exposure to the site.
|
|
Figure 1: DEW Line station |
Figure 2: Workers
clean-up a DEW line site. The clean-up of all the sites
will last from 1996-2013.
Photo
courtesy of: http://www.dcc-cdc.gc.ca |
|
R9004 |
Landsat TM
Interpretation in Papua New Guinea
Canadian Occidental Ltd., Calgary
|
R9002 |
SLAR Ice
Surveillance Service for the Beaufort Sea
Canadian Marine Drilling Ltd.
|
|
Figure 1: The SLAR system was installed in a Metro
II aircraft, such as the one shown here. |
Figure 2: Bercha SLAR system in Metro II used for
R9002. |
|
R9001 |
Earth
Remote Sensing Marketing Strategy Study
Department of Regional Industrial Expansion
Government of Canada |
1989 |
To Top of Page |
P8910 |
BRIDGE /
ICE / CLIMATE / FISHERIES INTERACTIONS AND CORRELATIONS -
NORTHUMBERLAND STRAIT CROSSING PROJECT
CLIENT: Delcan/Stone and Webster Joint Venture DATE: 1989
DESCRIPTION: This project is carried out jointly with Washburn
and Gillis, Fredericton, New Brunswick, and P. Lane &
Associates, Halifax, Nova Scotia. The project objective is to
carry out a series of correlations between a variety of
parameters in order to clarify the relationship between the
construction of a bridge in Northumberland Strait, the ice
climate, the marine and atmospheric climate, and the fishing
industry in Northumberland Strait. The project involved the
acquisition of information on atmospheric climate, water
temperatures, ice regimes, and species landings for five species
of fish and shell fish in Northumberland Strait. A series of
interactions were carried out to obtain possible correlations
between the fish landings and the various physical parameters.
In conjunction with the ice jamming model developed in previous
studies, these correlations would permit the effect of the
bridge to be incorporated into the analysis through
perturbations of the ice regime. The project also developed a
loop model which related the various physical parameters to the
marine food cycle in Northumberland Strait in order to obtain
qualitative relationships between the physical parameters and
the productivity of the various fisheries. The qualitative loop
models were verified against the findings of the various
correlations. It was found that the length of the ice season in
Northumberland Strait was significantly related to the severity
of the ice season and the wind conditions prevailing during the
ice clearing period. Further, it was found that, although there
was no significant relationship between the severity of the ice
season and the cumulative freezing degree days for the region,
if the wind regime during the winter was included in the
correlation, then the combination of these two independent
variables provided an excellent model for the severity of the
ice season.
|
P8908 |
CONSULTING
SERVICES AND PUBLIC HEARINGS - NORTHUMBERLAND STRAIT CROSSING
PROJECT
CLIENT: Delcan/Stone and Webster Joint Venture DATE: 1989
DESCRIPTION: This project involved the provision of expert
consultative services to Public Works Canada during the
preliminary hearings by the Federal Environmental Assessment
Review Panel on the completeness of the data for the
environmental assessment of the Northumberland Strait Crossing
Project. The project required presence at all of the Public
Hearings and the provision of responses to technical questions
put by the Review Panel. Further, the project required the
provision of consultative services to Public Works Canada and
the Delcan/Stone and Webster Joint Venture together with other
expert consultants on potential deficiencies in the data as
identified by the Panel, and through discussions with the Panel.
|
P8905 |
NORTHUMBERLAND STRAIT RIDGE SURVEY - FIELD PROGRAM AND TEST
PROGRAM
CLIENT: Delcan/Stone and Webster Joint Venture DATE: 1989
DESCRIPTION: The principal objectives of this project were to
obtain certain kinematic and mechanical information on the
nature of ridges in Northumberland Strait. The information was
required primarily to confirm that interactions between the
proposed bridge piers and ridges represented the most
significant ice load feature in Northumberland Strait. The work
involved a field program in March of 1989 in which a variety of
measurements were made on nine ridges with very high sails in
Northumberland Strait. These measurements included measurements
of ridge heights, depths of consolidation, in situ temperatures,
as well as the acquisition of a large sample of ice from the
consolidated portion of each ridge. One of the ridges was also
surveyed underwater by a team of divers with underwater video.
The samples of ice obtained from each ridge were then used for a
series of laboratory investigations to determine some of the
characteristics of the ice contained in the consolidated layer
of each ridge. These tests included strength tests in two
orthogonal directions, evaluations of ice density and salinity,
as well as crystal structure determinations. The results
provided an extremely comprehensive understanding of the
kinematic and mechanical characteristics of ridges in
Northumberland Strait. It was found that although consolidated
depths of up to 1.8 metres were encountered, these layers were
not entirely consolidated and significant voids were obtained in
all cores. The results of the strength tests indicated that the
ice in Northumberland Strait is not unlike first year ice in
other regions of the world. The results of this investigation
supported the consideration that the parameters being used to
determine the ice ridge forces on the bridge piers were not
unrealistic and were suitably conservative. |
P8901 |
METHOD FOR PRELIMINARY RISK ASSESSMENT
OF AGTD AND FOOTHILL PIPELINES
CLIENT: Nova Engineering Services
DATE: 1989
DESCRIPTION: The client operates the transmission pipeline
network for the distribution of natural gas within the Province
of Alberta. This transmission network is comprised of 762
pipelines and associated compressor stations and facilities. A
risk assessment methodology specific to these facilities was
developed as a tool to be used for achieving a safe,
environmentally responsible, cost-effective and reliable
operation. |
|
Geomatics Projects (1989) |
R8914 |
Multisensor System Development for Aquifer Detection
Dow Chemicals
|
R8913 |
SPOT and
SLAR Geologic Interpretation in Sabah
Phoenix Resources, Malaysia
|
R8909 |
Quality
Control Criteria for SAR Ice Imagery
Atmospheric Environment Services
|
The Bercha Group was actively involved in ice reconnaissance
for the Government of Canada. |
|
R8906 |
SB-8 SAR
Interpretation
Sun Malaysia Petroleum Company, Malaysia |
R8904 |
Sarawak
SK-12 SAR Quality Control
Offshore Petroleum and Investment Corp., Malaysia |
R8901 |
U.S.
Beaufort SLAR Ice Surveillance
Arco Alaska |
1988 |
To Top of Page |
P8827 |
MOLIKPAQ
MODELLING, PHASE V, FREQUENCY ANALYSIS, FILTERING AND DAMPING
EFFECTS
CLIENT: Gulf Canada Resources Limited DATE: 1988
DESCRIPTION: This project is the fifth phase in a series of
projects to develop, test and apply a simple lumped mass model
of Gulf Canada's Mobile Arctic Caisson, the Molikpaq. The model
has been developed to provide an analytical tool which will
readily analyze the interactions between the Molikpaq and an
interacting ice floe. These interactions are primarily dynamic
and involve complex ice-structure interactions and complex ice
behaviour at the interacting face. This project was primarily
directed at clearing up a number of outstanding issues which had
not yet been addressed and hence verifying the model results by
carrying out a series of analyses of actual ice events during
1985 and 1986. During these events, the instrumentation system
on the Molikpaq had been used to acquire a considerable amount
of data on the response of the system to the interacting ice
floes. These responses, mainly the acceleration and displacement
responses, were used as the basis of the model verifications.
One of the objectives of this current phase was to code a filter
system which would duplicate the filtering system inherent
to the data acquisition system on the Molikpaq. This analytical
filtering system would then permit more realistic comparisons to
be made between analytical results and measured responses. A
further objective was to provide some realistic measure of the
amount of damping available through radiation damping within the
plane of the ice sheet. This damping was included in the ice
model prior to the comparisons between the measured responses
from actual events and the comparable analytical results. Four
events were used for comparison purposes, representing a wide
range of load frequencies, load amplitudes, and ice properties.
A single structural representation was used for all events with
only the appropriate ice properties being changed between
events. The analyses were carried out for a two node
representation of the structure and subsequently for a more
complex 25 node representation of the structure. The results
were presented in an Interim Report and a Final Report. |
P8820 |
EMERGENCY RISK ANALYSIS OF CAROLINE SOUR GAS DEVELOPMENT
PROJECT
CLIENT: Shell Canada Limited
DATE: 1989
DESCRIPTION: The client was proposing to develop a very large
sour gas reservoir in the Caroline area of Alberta, which
contained natural gas, hydrogen sulphide (H2S), and natural gas
liquids. This development was to cover a large region and an
accidental release of reservoir fluids represented a potential
public hazard due to the toxicity of hydrogen sulphide and the
flammability of natural gas liquids. Risk analysis work
generally following a Safety Case approach to quantify these
hazards was initiated at the earliest engineering phases and was
included as an integral part of the development plans through to
regulatory approvals. Risks for all principal release scenarios
were quantified by integrating the probabilities of releases
with information related to release characteristics, plume
dispersion, and human response in order to estimate the annual
probability of being exposed to a fatal concentration of H2S or
an explosive mixture of natural gas liquids. Detailed modelling
work was carried out to define risk parameters and provide the
basis for implementing optimum risk mitigation measures. These
measures were then included in the plans for design,
construction, operation and management of the project
facilities. The risk analysis work was documented in both
technical reports and summaries used for public communications.
Expert testimony was provided for an extensive public hearing,
which was required for regulatory approval of the development
application. Finally, risks were evaluated for a competing
application at the hearings, which concluded with regulatory
approval going to our client's application. |
P8819 |
CONSULTING
SERVICES RE: NORTHUMBERLAND STRAIT
CLIENT: Public Works Canada DATE: 1988
DESCRIPTION: The work carried out in this project involved the
technical evaluation of the proposals submitted to Public Works
Canada in response to the call for tenders for the construction
of a fixed link crossing between Prince Edward Island and New
Brunswick. The technical evaluations carried out in this project
included evaluations to determine the influence of the proposed
bridge structure on the ice regime in Northumberland Strait, and
the ice forces used for the design of the same bridges. The
technical evaluations were carried out on the basis of the
requirements of the original bid package and the previous
studies carried out by Bercha and Associates on the problem of
ice jamming in Northumberland Strait. The review process was a
two part process in which each of the tendering consortia were
advised of any possible short-comings in their proposal and
provided with an opportunity to revise their proposals
accordingly. A second round of reviews were then carried out.
The review process also considered the impacts that the proposed
bridges would have on the fast ice regime in Northumberland
Strait, including possible extensions to the fast ice, and any
delays in clearing of the fast ice. Although results were
submitted to Public Works Canada and the consultants to Public
Works Canada on an on-going basis, a Final Report was prepared
once the evaluations had been completed. |
P8815 |
RISK ANALYSIS OF NGL TRANSPORTATION AND
TERMINAL FACILITIES
CLIENT: Esso Resources Canada Limited
DATE: 1988
DESCRIPTION: Esso was implementing a truck transportation and
handling system to move Natural Gas Liquids (NGLs) from
producers to an existing pipeline and due to the inherent
hazards of NGLs, there were safety concerns regarding a new
operation. NGLs are transported under pressure to store them in
liquid form, however, any release to the atmosphere has the
potential to form a flammable or explosive vapour cloud. The NGL truck transportation and handling system was
analysed to estimate the probability of a fire or explosion from
an accidental NGL release. Analytical techniques included site visits and operating audits,
auditing compliance to standard practices, statistical analysis
of historical accidents, knowledge-based hazard and operability
studies, and fault tree analysis. Results generated a better
understanding of the potential hazards and prioritisation of
optimum risk mitigation strategies. |
P8811 |
NUMERICAL
MODELLING OF ICE-STRUCTURE INTERACTION RESPONSE OF THE MOLIKPAQ
CLIENT: Gulf Canada Resources Limited DATE: 1988
DESCRIPTION: This project was Phase IV of an on-going project to
develop a dynamic non-linear lump-mass model of Gulf's Mobile
Arctic Caisson, the Molikpaq. This project was essentially an
extension of previous work carried out as projects PA8716,
PA8704, and PA8609. The principal objective of this project was
to integrate into the previously developed lumped mass models
for the Molikpaq, a model for the ice sheet. The ice model was
based on work carried out by Gulf Canada Resources Limited in
conjunction with British Petroleum, to provide a rheological
model for the behaviour of the intact ice sheet, and the
pulverized ice layer between the ice sheet and the structure.
The integration of the ice model was carried out in a series of
stages, which included altering the solution technique used with
the ice model to accord with that used with the structure model.
The structure model consisted of a series of lumped masses
connected by elements capable of representing both elastic
response and inelastic response. The steel caisson was assumed
to behave elastically under all conditions of loading, both
static and dynamic, whereas the interface between the caisson
and the sand core and berm was provided with a non-linear
response capability to model the potential for slip between the
caisson and the sand and to model the non-linear behaviour of
the sand, particularly shear softening, under dynamic loading.
The structure model was also provided with a series of
foundation elements which were able to model the interaction
between the sand berm and the seabed. The response of the
structure model was validated with a series of static ice
interactions with the Molikpaq. The ice model consisted of a
series of elements which modelled the in-plane elastic behaviour
of the ice sheet, the radiation damping within the plane of the
ice sheet, and the highly non-linear behaviour of the crushed
layer of ice created between the ice sheet and the steel caisson
of the Molikpaq. This behaviour included sudden crushing of the
intact ice sheet and the creation of pulverized ice, and the
viscous extrusion of the pulverized ice under the action of
continued motion of the ice sheet which included some cohesive
strength. The ice model was analyzed on its own, with a single
node representation of the structure, and with a two node
representation of the structure. A series of parametric studies
were carried out to evaluate the sensitivity of the results to
various parameters of the ice model. Finally, the results
obtained from the combined model, including a two node
representation of the structure, were compared with the data
obtained from the prototype measurement system, during an actual
ice interaction event. A comparison between the measured and
analyzed responses was quite good considering the very simple
level of structural modelling being used at this stage. |
P8807 |
SPECIALIZED NON-LINEAR STRUCTURAL ANALYSIS COMPUTER SOFTWARE
DEVELOPMENT
CLIENT: Alberta Technology and Telecommunications DATE: 1988
DESCRIPTION: This project involved the modification,
development, and testing of a series of nine structural
engineering
programs as marketable software for use on microcomputers. The
project was a cost share project, 50% supported by the Alberta
Government, and 50% supported by Bercha and Associates. The
original programs were available from the University of Calgary
where they had been developed as research tools, executable on
mainframe computers. Preprocessor programs were developed for
each of the nine structural engineering programs to provide user
friendly and interactive capability for the input of the
required data. Preprocessors included graphic display of the
structure, and full edit capability. The programs were fully
tested for error checking, admissibility of the data, and for
all possible ranges of data combinations. Post processors were
developed for each program which permitted the results of the
program analysis to be displayed in graphic form both on the
screen, and by plotter. User manuals for each of the programs
were developed which provided a concise and clear description of
the program capabilities, the information required, and provided
examples of the application of each program. |
P8805 |
NORTHUMBERLAND STRAIT CONSULTING SERVICES
CLIENT: Public Works Canada DATE: 1988
DESCRIPTION: For this project, the company was retained by
Public Works Canada to act on their behalf in monitoring the
acquisition program by McLaren Plansearch to obtain ice,
oceanographic, and meteorological data during the winter of 1988
within Northumberland Strait. In this role, the company reviewed
the original proposal and made a series of trips to Halifax and
Northumberland Strait to view the facilities and hold meetings
with McLaren Plansearch personnel on progress of the program.
Progress reports were submitted to the project manager with
Public Works Canada at regular intervals. |
P8803 |
NORTHUMBERLAND STRAIT BRIDGE PROBABILISTIC JAMMING ANALYSIS
CLIENT: Public Works Canada DATE: 1988
DESCRIPTION: The work carried out in this project involved a
major extension of the model developed under the previous
project, PA8703. This extension involved considerable
redevelopment of the jamming model to include effects of
consolidation, synergistic effects during the analysis of a
single winter, and evaluation of areas of ice blocked. All of
these developments were included in the model in a probabilistic
fashion in keeping with the entire emphasis of the jamming
model. Sensitivity studies were carried out to ascertain the
influence of particular ice and bridge structural variables on
the amount of ice jammed from which it was determined that the
two principal structural variables, span length and pier
diameter had an extremely significant effect on the amount of
ice jammed.
Finally, an analysis was carried out using the most up-to-date
information on ice properties in Northumberland Strait, using a
six metre diameter pier, with a variety of different span
lengths. The results of this analysis indicated that spans in
excess of 175 metres would result in acceptably low amounts of
ice being jammed. The analysis also determined what effect the
ice blocked would have on the length of the breakup season.
Analysis was carried out of five breakup seasons for which
information was available and it was ascertained that there was
a clear relationship between the ice concentration at the
beginning of the breakup season and the length of the breakup
season itself. Further analysis provided the conclusion that the
length of the breakup season was more significantly affected by
the environmental conditions during that period of the year. |
|
Geomatics Projects (1988) |
R8825 |
Airborne
Forest Inventory Sensing System and Software
National Research Council |
R8824 |
Canadian
Project Preparation Facility for Laser Topographic Mapping
Applications
Canadian International Development Agency |
R8823 |
Forestry
Laser Data Acquisition
Institute for Technology Development (NASA) |
R8822 |
Remote
Sensing Training Program
Government of Alberta |
R8814 |
Specialized Remote Sensing and Geophysical Training and
Technology Transfer Program
Directorate General of Mineral Resources, Govt. of Indonesia
|
R8810 |
Interpretation of Barents Sea SAR Ice Imagery
Mobil Exploration Norway Inc. |
R8809 |
Acquisition of Sea Ice SAR Data for the Barents Sea
Mobil Exploration Norway Inc. |
R8808 |
Sea Ice
SAR Signature Analysis and Interpretation Manual
Atmospheric Environment Service, Dept. of Supply and Services |
R8806 |
Acquisition and Interpretation of High Resolution SAR Data for
Northumberland Strait
Public Works Canada |
R8804 |
Northumberland Strait Photographic Data Interpretation
Public Works Canada |
1987 |
To Top of Page |
P8718 |
RISK ASSESSMENT PROGRAM FOR BASIC
ENGINEERING DESIGN OF TARSANDS MINING AND PROCESSING PLANTS MEGA-PROJECT
CLIENT: Syncrude Canada Ltd.
DATE: 1987
DESCRIPTION: The largest tarsands mining and processing facility
in the world is operated by the client some forty kilometres
north of Fort McMurray, Alberta. A major expansion project was
initiated for this facility and work began with a design basis
memorandum describing criteria for the preparation of
engineering design specifications. Fourteen consultants from
across Canada were then commissioned to provide basic
engineering design specifications for major facilities proposed
for expansion. Over twenty new facilities and numerous
modifications to existing facilities were proposed to develop
the mines, install a new energy efficient extraction and froth
treatment plant, and integrate new hydroprocessing and
hydrotreating plants to improve the yield in quality of
synthetic crude oil without increasing sulphur emissions. |
P8717.01 |
INSPECTION
OF MV MISCAROO AND LASER SURVEYS
CLIENT: Transportation Development Centre DATE: 1988
DESCRIPTION: As an extension to the previous project, this
project involved an inspection of the MV Miscaroo while
dry-docked in Vancouver in July 1988. The inspection involved a
complete survey of the condition of the hull and the acquisition
of approximately thirty latex impressions of examples of
corrosion of the hull. These impressions were then surveyed
using a scanning laser system as well as a mechanical
measurement system. The results of the two systems were compared
and the results of the entire survey were included in the data
base used in the main project, PA8717. This survey of the hull
which had been coated with Inerta 160 during the vessel's
previous dry-docking in 1985 showed that no significant
corrosion had taken place since then. The condition of the
coating was excellent. However, the coating was removed in a
number of locations and it was found that in the years of
operations prior to 1985, significant corrosion had taken place
in some locations of the hull. There was also some examples of
extreme corrosion at the interface between stainless steel and
regular steel on the Kort nozzles. |
P8717 |
CORROSION
OF MARINE STRUCTURES AND VESSELS OPERATING IN ARCTIC WATERS
CLIENT: Transportation Development Centre DATE: 1987-1988
DESCRIPTION: The objectives of this study were to provide
recommendations and guidelines for operators of steel
arctic-going vessels on means of accounting for the severe
corrosion that has been experienced to date. The work involved
the accessing and analysis of the data base on corrosion
acquired by Gulf Canada Resources Ltd. This data base had been
acquired from periodic maintenance inspections of Gulf's
Beaufort Sea fleet of icebreakers and drilling vessels. The data
base also included results obtained from corrosion coupons
purposely deployed on vessels in the Beaufort Sea. The data base
included the measurement of the manifestations for corrosion as
well as all of the required backup information on steel grades,
operating history, welding procedures, corrosion protection
measures, et cetera. From the analysis of this data, a measure
of corrosion severity was established. The general types and
severities of corrosion were then used as input to analytical
analyses of the residual strength of components of the various
vessels. These analyses included the strength of uncorroded
sections as well as the strength of corroded sections including
the effects of material loss and brittle fracture due to knife
edge corrosion particularly of the Heat Affected Zone (HAZ). The
comparative strengths of the corroded and uncorroded sections
were then used to determine the effect of corrosion on the
probability of failure and factors of safety for those
components. The results of these analytical studies were then
used to formulate guidelines for use in the design, operation,
and maintenance of arctic-going vessels based on levels of
corrosion and degrees of safety. |
P8716 |
DEVELOPMENT OF SIMPLE MODEL OF MOBILE ARCTIC CAISSON, MOLIKPAQ -
PHASE III
CLIENT: Gulf Canada Corporation DATE: 1987
DESCRIPTION: This project was an extension of work carried out
for Gulf Canada Resources Limited under previous projects PE8609
and PE8704. These projects were directed at the development of a
methodology and the initial assignment of values to obtain a
simple lumped mass model of the Molikpaq, its caisson, core, and
berm. The model was designed to permit accurate analytical
determination of the response of the structure to ice loads in
both static and dynamic modes. In this phase, the 25 node, and 2
node, models previously developed were subjected to a series of
sensitivity analyses to tune their responses to applied ice load
functions. The sensitivity of the results was determined in some
detail and the results tuned against data obtained from the
instrumentation system onboard the Molikpaq for actual ice
interaction events. Due to the simplicity of the model, the
comparisons were only made for responses which were not highly
location dependent. Principally, these responses included
displacements and accelerations at various points throughout the
structural system. The models were tuned for static events, for
natural frequencies, and for dynamic response. A detailed
analysis of the added mass and damping effects of the water in
the ballast tanks of the caisson was undertaken. The Final
Report presented the entire findings of the analysis together
with appendices indicating the nature of the analytical
responses obtained, the dynamic characteristics of the models,
and an analysis of the added mass and damping coefficients
within the ballast tanks. |
P8707 |
MOLIKPAQ
ANALYSIS FOR 50-YEAR ICE LOADS
CLIENT: Gulf Canada Resources Limited DATE: 1987
DESCRIPTION: For its 1987 deployment, Gulf's Mobile Arctic
Caisson, the Molikpaq, was to be set down at lesser water depths
than previously, and the sand core was to be consolidated. As a
result of these modifications in the deployment of the Molikpaq,
concerns were raised regarding the stresses that would occur at
various locations within the steel caisson. The work carried out
involved static 3-dimensional analyses of the complete caisson
with core and berm under the action of the 50-year return period
ice forces. The 3-dimensional analysis for the complete
structural system was carried out using a non-linear finite
element package on a Cyber 205 supercomputer. The software
package underwent significant modification to utilize the vector
processing capability of the Cyber 205. The analysis was carried
out using load increments and non-linear modelling for the
interface between the steel caisson and the sand of the core and
the berm. In order to simplify the complex structural
arrangements of the steel caisson, a series of macro elements
was developed in which each macro element encompassed a portion
of the caisson between main bulkheads and between horizontal
diaphragms. The stiffness of each macro element was developed
using a linear elastic finite element program, SPAST, and
involved significant finite element modelling in its own right.
The results of the large 3-dimensional analyses were used as
input to small 2-dimensional finite element models of portions
of the caisson structure. The primary concern involved the
in-plane stresses within the soil face of the caisson. Stress
contours of portions of the soil face were obtained as a result
of the two levels of analysis and compared with allowable design
conditions. In general, although the calculated stresses were
high, it was ascertained that these stresses were not
unacceptably high. |
P8705 |
FINITE
ELEMENT MODELLING OF MOLIKPAQ FOR INSTRUMENTATION ANALYSIS
CLIENT: Gulf Canada Corporation DATE: 1987
DESCRIPTION: The work involved the development of a
comprehensive three-dimensional finite element model of the
Molikpaq including core and berm and the interpretation of the
results of a static analysis of the model to identify global
load paths. From this interpretation of the results, the
proportions of ice load transferred to the core, transferred
around the caisson, and transferred to the berm through the
caisson base were determined. Subsequently, a detailed finite
element analysis of a single bulkhead was carried out in order
to permit stresses to be evaluated at points corresponding to
the strain gauge locations used as part of the on-board
instrumentation package. Comparisons between the results of the
finite element analysis and the strain gauge instrumentation
were used to further verify the analysis and to test the use of
simple algorithms for the interpretation of the strain gauge
results and finally, prediction of ice forces. Excellent
agreement was obtained between the analytical results and the
measured results for some of the strain gauges on each bulkhead,
whereas poor results were obtained for other gauge locations. It
was determined that the stresses at particular gauge locations
were highly sensitive to the vertical location of the ice load
on the bulkhead. As this location could only be inferred from
the ice load measurement panels on the caisson face, it was
concluded that only results from gauge locations at which the
stresses were largely insensitive to the vertical location of
the ice load should be used for ice load determinations. |
P8704 |
DEVELOPMENT OF A SIMPLE MODEL FOR THE MOBILE ARCTIC CAISSON,
MOLIKPAQ - PHASE II
CLIENT: Gulf Canada Corporation DATE: 1987
DESCRIPTION: This work involved the development of two specific
models of the Molikpaq, one extremely simple and one slightly
more complex for use with the numerical model developed in Phase
I of the project. The work included the assignment of specific
values to the various components of each model using only linear
analysis, and the verification of the results through comparison
with the response measured through the comprehensive
instrumentation scheme onboard the Molikpaq. The numerical
values were fine-tuned such that accurate values of natural
frequencies and static response parameters were obtained by the
two levels of modelling. |
P8703 |
IMPACT OF
PROPOSED NORTHUMBERLAND STRAIT CROSSING ON LOCAL ICE REGIME
CLIENT:
Public Works Canada DATE: 1987 - 1994
DESCRIPTION: The principal objective of the work was the
determination of the frequency and severity with which ice jams
would occur against the piers of the proposed Northumberland
Strait Bridge Crossing and the forces exerted by ice on the
bridge piers. Secondary objectives included an evaluation of ice
motion within Northumberland Strait, evaluation of modifications
of the ice cover characteristics in Northumberland Strait and
evaluation of any possible impacts on the micro-climate and
hence the potato crop of Prince Edward Island. The work involved
an analysis of the properties of the ice cover in Northumberland
Strait and the development and application of various algorithms
to predict the occurrence of jams between piers and their
duration. This was achieved through determination of the
probability of a jam occurring and the probability that the
resulting jam would survive the subsequent environmental
clearing mechanisms. It was concluded that the proposed bridge
configuration would not have a significant effect on the ice
regime in the Strait but that the pier spacing had a very
significant effect on these conclusions and thus was a critical
element in the analysis. |
|
Geomatics Projects (1987) |
R8714 |
Airborne
Laser System for Forest Mapping
Industrial & Regional Development Program
Government of Canada |
R8708 |
IRAP-M:
Software Development for Airborne Lasers
Canadian National Research Council |
R8702 |
Feasibility Study for Laser Topographic Mapping
Canadian International Development Agency |
1986 |
To Top of Page |
P8609 |
DEVELOPMENT OF SIMPLE MODEL OF MOBILE ARCTIC CAISSON, MOLIKPAQ
CLIENT: Gulf Canada Corporation DATE: 1986
DESCRIPTION: The work involved the development of a simple
numerical model for non-linear dynamic analysis of Gulf
Canada's Mobile Arctic Caisson, the Molikpaq. The model consists
of a number of lumped masses in three dimensions connected by a
variety of springs and dashpots representing the mass of the
caisson, the elastic and inelastic response of the various
components of the Molikpaq, and the viscous and hysteretic
damping response, respectively. The project included the
development of the necessary computer algorithms for the
solution of the non-linear dynamic equations of equilibrium
utilizing Gulf's HP300 series microcomputer. All components of
the algorithm were fully tested through the application of the
resulting program to a number of simple models in two and three
dimensions utilizing linear, non-linear, static and dynamic
analysis. |
P8603 |
DEVELOPMENT AND PRESENTATION OF A TRAINING
COURSE ON FAULT TREE ANALYSIS
CLIENT: NOVA, An Alberta Corporation
DATE: 1986
DESCRIPTION: An intensive training course was developed on fault
tree analysis (FTA) and presented to numerous groups within the
operational and support departments of NOVA. Initially, an
extensive and detailed course manual was prepared which included
an historical introduction to risk analysis and FTA, FTA
applications, procedures, fundamentals, quantification, and
evaluation methods. Illustrative case studies were developed
and data specific to the NOVA organisation was collated for use
in workshops. Presentation of the course consisted of lectures,
audio-visual presentations, and tutorial workshops, which
provided practical hands-on experience for participants to use
FTA in the context of their daily work environment. FTA is one
of the principal methodologies available today for assessing
risks in industrial and social endeavours. Awareness of FTA
methodology and its benefits is not universal, however, nor is
there a universal approach to its application. Material for the
course was derived from experience in applying FTA in a whole
spectrum of industries in order to assess risks associated with
human losses, property and economic losses, and environmental
damage. |
|
Geomatics Projects (1986) |
R8605 |
Provision
of SAR Sensor Operators, 1986-1991
Dept. of Energy, Mines and Resources |
R8603 |
SAR
Operations - CV580
Energy, Mines and Resources |
1985 |
To Top of Page |
P8527 |
FINITE
ELEMENT ANALYSIS FOR LOCAL AND GLOBAL ICE LOADS
CLIENT: Gulf Canada Resources Inc. DATE: 1985
DESCRIPTION: The work involved the testing of F.G. Bercha and
Associates (Alberta) Ltd. ice finite element system through the
evaluation of local pressures and global loads on the Molikpaq
ice wall during floe impacts. The Molikpaq wall was modelled as
a uniformly rigid wall while the ice floe was modelled using
both uniform (homogenous) properties and random (inhomogeneous)
properties. Various trajectories were considered and a special
case of a circular caisson was evaluated.
|
P8526 |
DYNAMIC
MODEL OF THE MOLIKPAQ
CLIENT: Gulf Canada Resources Inc. DATE: 1985
DESCRIPTION: The work involved the development of a
three-dimensional dynamic model of GCRI's mobile caisson island,
the Molikpaq. The model is to be eventually used to analytically
determine the effects of ice impacts on the caisson island and
to predict the caisson response. The model was developed using
three-dimensional macro elements of sections of the steel
caisson combined with brick elements representing the core and
the berm. The model was tested in static mode, for natural
frequencies and under simulated dynamic load and was verified
against the instrumentation output obtained by GCRI through the
Molikpaq's operating history.
|
P8524 |
ICE SCOUR
METHODOLOGY STUDY
CLIENT: Gulf Canada Resources DATE: 1985
DESCRIPTION: The work involved the review, analysis and
evaluation of alternate ice scour methodologies directed at
optimizing pipeline burial depth within a risk optimization
perspective. Following a comprehensive review of all available
information, the relevant ice scour parameters were ranked in
accordance with their significance. Methodologies were reviewed
with respect to parameter completeness, technical acceptability,
and definition of uncertainties. Results include definition of
alternate methods of approaching a scour problem, generation of
comparative results, and final recommendations on the preferred
methodology.
|
P8518 |
RISK ANALYSIS OF PUBLIC LIABILITY
EXPOSURE FROM LPG OPERATIONS
CLIENT: Stittco Energy Limited
DATE: 1985
DESCRIPTION: The risk analysis of public liability exposure from
Stittco's LPG operations in Manitoba included identification of
potential LPG release scenarios from storage depots and utility
distribution systems, modelling of release dispersion
characteristics and quantification of public consequences and
corresponding insurance liability. Detailed analyses of public
risks were carried out for credible release scenarios associated
with the major LPG storage vessels located in six communities in
Manitoba. In addition, risk analyses were carried out for the
LPG utility distribution systems operated in three communities.
Results of the risk analysis included risk spectra presenting
the probability distribution of potential liability costs
associated with Stittco's operations. Such results were
utilised to determine optimum insurance requirements.
|
P8517 |
RISK ANALYSIS OF PUBLIC LIABILITY EXPOSURE FROM PIPELINE
OPERATIONS
CLIENT: Peace Pipeline Ltd.
DATE: 1985
DESCRIPTION: The risk analysis of public liability exposure from
Peace Pipeline operations included analysis of the probabilities
of pipeline releases, modelling of the gas release dispersion
characteristics, evaluation of the public consequences and
calculation of the associated public liability exposure.
Results and recommendations were specifically directed at
insurance requirements to cover public liability exposure from
pipeline operations. A section of transmission trunkline
transporting gas plant liquids was identified as the component
posing the greatest public risks and therefore was specifically
analysed in detail to quantify the greatest public liability
exposure. Results of the risk analysis included risks spectra
presenting both the probability of an accidental pipeline
release with the expected number of casualties associated with
such a release, the public liability costs associated with
potential casualties and a comparison of pipeline risks with
other common risks. |
P8516 |
ICE
INTERACTIONS WITH WINTERIZED AKER D-6 SEMI-SUBMERSIBLE
CLIENT: Aker Engineering A/S DATE: 1985
DESCRIPTION: The work involved the determination of ice loads
on, and the resulting response of, a specially winterized
version of the Aker D-6 semi-submersible designed for operations
in marginal ice zones. Marine ice interactions included sheet
ice in crushing and flexure modes and rubble pile loads. Static
loads and simulated dynamic response loads were evaluated. An
advance finite element analysis utilizing state-of-art ice
rheology modelling was used in the determination of local
pressures on the column shell walls. As the D-6 may operate in
berg infested waters, interactions with bergy-bits were
evaluated. These included high speed impact pressures on the
column shell walls and the evaluation of the effectiveness of a
patented bergy-bit deflector. |
P8514 |
FAULT TREE PROGRAM FOR RISK ANALYSIS OF PRESSURE VESSEL
RUPTURE
CLIENT: Esso Resources Canada Limited
DATE: 1985
DESCRIPTION: Following completion of the risk analysis of
pressure vessel ruptures (P8506), a software package was
developed to facilitate repetitive, automatic calculations on
the previously developed fault tree. The software package was
developed for implementation on an IBM Personal Computer. The
fault tree program was a highly interactive program capable of
modifying fault tree event values, performing sensitivity
analyses and calculating corresponding estimates of brittle
fracture failure probabilities. |
P8513 |
PROBABILISTIC ICE ATLAS FOR CONCEPTUAL DESIGN
CLIENT: Marathon Oil DATE: 1985
DESCRIPTION: The work involved the development of a
comprehensive ice engineering manual for application in Arctic
and marginal ice zone offshore areas. Specifically, the project
involved the generation of seasonal ice zone maps for each of
the designated study areas, description of the representative
ice zones in graphical and tabular format, quantification of
kinematic and mechanical properties, definition of data and
methodology gaps, calculation of ice loads for all
representative structure types for each study area and season,
and generation of a final report consisting of an ice atlas and
a textual description. The study areas covered included the
entire Alaska offshore from the Aleutian Islands throughout the
Bering Strait, the Chukchi Sea, around Point Barrow, to the
U.S./Canada International Boundary. All ice kinematic and
mechanical properties and all resulting ice loads are presented
in probabilistic form for return periods of 1 year, 10 years, 30
years and 100 years. |
P8511 |
AMMONIA STORAGE VESSEL RISK ANALYSIS
CLIENT: Esso Chemical Canada
DATE: 1985
DESCRIPTION: The scope of work included an evaluation of
potential ammonia releases within the complete manufacturing and
distribution system operated by Esso Chemical. Ammonia is a
toxic chemical and due to the inventory of material handled by
Esso and the geographic distribution of their facilities, there
was concern for potential public exposures.
A risk analysis was carried out to define the
potential risk problem and quantify the risks of potential
ammonia losses throughout Alberta and Manitoba. Included in the
scope was an analysis of the transportation of ammonia, the fate
of releases during transportation, loading, storage, and
unloading, and finally, a quantification of the consequences for
the affected public. Site specific risk analyses were carried
out for the manufacturing facility and a number of field
agencies in Alberta and Manitoba. One particular concern
included in the detailed analysis was the potential for brittle
fracture failures in the storage vessels. The analysis
concluded with an assessment of potential risk mitigation
measures. |
P8510 |
DEVON AREA PIPELINE SYSTEMS RISK ANALYSIS
CLIENT: Esso Resources Canada Limited
DATE: 1985
DESCRIPTION: A comprehensive risk analysis was carried out for
the Devon area pipeline systems operated by Esso. The general
objective of the work was to quantify the public risks
associated with all pipeline systems in the Devon area.
Separate analyses were carried out for gas pipelines associated
with the blowdown of a specific field and for three
high-pressure natural gas liquids pipeline systems. The risk
evaluation included analysis of the probabilities of pipeline
releases, modelling of the different gas release dispersion
characteristics, evaluation of the public consequences and
evaluation of safety measures to mitigate the associated risks.
Results of the analyses were utilised for the development of
planned capital projects in the area. |
P8508 |
RISK ANALYSIS OF PRESSURE VESSEL RUPTURES
CLIENT: Esso Resources Canada Limited
DATE: 1985
DESCRIPTION: The work consisted of a systematic analysis of the
risk of ruptures due to brittle fracture of pressure vessels.
Catastrophic failures of pressure vessels due to brittle
fracture occur rarely and the general objective of the work was
to present a methodology for quantifying and analysing such rare
risks. The risk analysis program included the identification of
potential event sequences resulting in a vessel rupture; the
development of a fault tree logic structure; the quantification
of risks of a vessel rupture and the evaluation of the
sensitivity of risk to its major components. Physical property
criteria for brittle fracture were utilised as a basis to
analyse in detail a specific group of pressure vessels within
Esso's operations. |
P8506 |
ANALYSIS
OF PRESSURE VESSEL RUPTURES
CLIENT: Esso Resources Canada Limited DATE: 1985
DESCRIPTION: The work consisted of a systematic analysis of the
risk of ruptures due to brittle fracture of pressure vessels.
Catastrophic failures of pressure vessels due to brittle
fracture occur rarely and the general objective of the work was
to present a methodology for quantifying and analyzing such rare
risks. The risk analysis program included the identification of
potential event sequences resulting in a vessel rupture; the
development of a fault tree logic structure; the quantification
of risks of a vessel rupture and the evaluation of the
sensitivity of risk to its major components. Physical property
criteria for brittle fracture were utilized as a basis to
analyze in detail a specific group of pressure vessels within
Esso's operations. |
P8504 |
TESTIMONY ON MOBILE PCB DISPOSAL FACILITY
CLIENT: London Occupational Safety and Health Group
DATE: 1985
DESCRIPTION: The work involved testimony at the Ontario Ministry
of the Environment Hearings on mobile PCB destruction facilities
in Ontario. The testimony was based on previous risk analytic
work associated with the transportation to treatment of
hazardous waste substances and with transportation and storage
of PCBs for disposal at a cement plant. Following a brief
description on the objectives and methodology of risk analysis,
a review of the above-mentioned risk work was presented.
Specific comments were then presented on risks associated with
mobile PCB disposal operations, which were being reviewed in the
hearings for regulatory purposes. |
|
Geomatics Projects (1985) |
R8512 |
Scientific
and Technical Support for the Definition of Mission Requirements
for a Satellite Equipped with a Synthetic Aperture Radar (RADARSAT)
The Canada Centre for Remote Sensing, Dept. of Energy, Mines and
Resources |
R8510 |
Davis
Strait, SLAR Survey
British Petroleum Resources |
R8507 |
IRAP-M:
Investigation of an Airborne Passive Radar Discriminator
Canadian National Research Council |
R8504 |
SLAR
Survey
British Petroleum Resources |
R8503 |
Drew Point
SLAR Imagery
D.F. Dickins Associates Ltd. |
R8502 |
Airborne
Laser Mapping Pilot Project
Government of Indonesia |
R8501 |
Airborne
SLAR Surveillance Service - East Coast
Joint Industry Project: Participants: Husky/Bow Valley, Mobil
Canada, Petro-Canada
|
The Gulfstream-1 aircraft equipped with a Motorola Side
Looking Airborne Radar (SLAR). The aircraft and system was used
in many Bercha Group geomatics projects, including R8501. |
|
1984 |
To Top of Page |
P8420 |
ANALYSIS OF TRANSPORTATION ROUTING BETWEEN EDMONTON AND
SWAN HILLS
CLIENT: Alberta Special Waste Management Corporation
DATE: 1984-1985
DESCRIPTION: An analysis of spill risks for transporting special
wastes by truck along available routes between Edmonton and the
Swan Hills Treatment Plant was carried out. Risk matrices were
generated for each segment of the five available routes to
provide a comparison of spill probabilities, accident causal
factors and potential population and property consequences.
Results of the analysis included generation of an analysis
methodology, collation of route characteristics and traffic
counts from field surveys, calculation of spill probabilities,
tabular and graphical presentation of the sensitivity of spill
probabilities to major accident causal factors and generation of
risk matrices. |
P8417 |
POST-FAILURE ASSESSMENT OF RISK TO WHARF DUE TO ICE LOADING
CLIENT: Department of Public Works - Supply and Services Canada DATE: 1984
DESCRIPTION: The work involved the application of previously
documented ice-structure interactions to a wharf in the Baie de
Chaleurs off the Gaspe Peninsula which failed in 1973 due to ice
encroachment. The work included the interpretation of ten years
of ice data for the region from public sources, resulting in
probability distribution curves for ice kinematic properties for
the site. Local meteorological records were also reviewed. The
wharf was structurally analyzed to evaluate failure loads and
the two sets of data compared to give the life of the structure
and the failure risk. In an additional volume, general
approaches to probabilistic ice loads and structural risk were
described. |
P8416 |
LOCAL ICE
PRESSURES IN ICE-STRUCTURE INTERACTIONS
CLIENT: Department of Public Works - Government of Canada DATE:
1984
DESCRIPTION: The work involved the development of a refined
analytical model to accurately predict local ice pressures. The
model incorporated all the known influences on ice rheology and
ice-structure interactions. The resulting rheological models
were incorporated in a non-linear, finite element program to
allow advanced analysis of a variety of ice-structure
interactions in both static and dynamic states. The rheology
used is completely strain-rate dependent, features both
isotropic and planar anisotropic behaviour, and is capable of
modelling tension cracking. The resulting coding is fully tested
and was supplied with a comprehensive user's manual. The model
was used to evaluate ice pressures in interactions between thick
uniform ice sheets and vertically sided structures. The
modelling included modelling of both the ice sheet and the
structure and was carried out using displacement increments
until complete plastic flow of the ice sheet occurred.
|
P8415 |
GRAVITY-BASED STRUCTURE OPTIMIZATION FOR ICEBERG IMPACT
CLIENT: Northern Construction Company Limited and Delta Marine
Consultants B.V. DATE: 1984
DESCRIPTION: The work consisted of preliminary engineering
design of gravity-based structures, qualitative and quantitative
analysis of GBS-iceberg interactions, and detailed analysis for
selected designs. The detailed analysis was carried out
utilizing two levels of finite element modelling; the first, a
preliminary plane strain model, and the second, an advanced
dynamic nonlinear model, giving both global and local pressures.
Two specific structure types generated interactively between the
FGBAL and construction teams were reviewed in detail and final
load calculations carried out utilizing the FGBAL finite element
programs. The result was a set of unique structural systems
optimized for a Hibernia location in terms of iceberg impact,
ocean loading, and operational requirements.
|
P8414 |
AN
INVESTIGATION OF LOCAL ICE PRESSURES ON GRAVITY BASE STRUCTURES
- PHASE II
CLIENT: Petro-Canada Resources Inc. DATE: 1984
DESCRIPTION: This project is derived from a requirement by the
client to have an understanding of the local contact stresses
and the resulting local structure response for various forms of
gravity-based structure planned for the Hibernia development.
The contact stresses result from iceberg impact and, due to the
highly confined nature of the ice at the impact zone, a
3-dimensional finite element development was adopted. As the
pressures and forces result from impact, the analysis was also
dynamic, resulting in the requirement for a time-dependent
solution. The resulting model incorporated both of these
characteristics and used a state-of-the-art formulation for the
failure of ice in multi-axial stress states. The advanced
non-linear iceberg finite element model is based on real time
dynamic interaction. All forms of energy dissipation of the
initial iceberg kinetic energy, ice deformation and crushing,
local structure deformation and global structural deformation
are included, as well as advanced material models for rheology.
Pre- and post-processors for the finite element package have
been prepared. The program was used to carry out a series of
analyses on various structural concepts being considered for the
gravity base structure for the Hibernia development. For these
analyses, the finite element modelling included both the iceberg
and portions of the outside wall and the supporting cellular
structure. Analyses were carried out on a two-dimensional plane
strain model of a horizontal slice of the system. The results of
the analysis emphasized the importance of appropriate modelling
of the ice but also indicated that the structural stiffness
played a secondary but nevertheless significant role in
dictating ice contact pressures.
|
P8410 |
RISKS ASSOCIATED WITH THE TRANSPORTATION
TO TREATMENT OF HAZARDOUS WASTE SUBSTANCES
CLIENT: Alberta Special Waste Management Corporation
DATE: 1984
DESCRIPTION: An analysis was carried out of the risks associated
with the truck transportation of liquid hazardous wastes from
the various generating sites in Alberta to the proposed Swan
Hills treatment plant. The work was an update to a previous
risk analysis (P8008) undertaken for the Environmental Council
of Alberta. Three scenarios of waste volume distributions were
included in the analysis to determine the yearly probability of
a spill accident based on 1979, 1980 and 1982 Alberta accident
statistics.
|
P8407 |
THE INFLUENCE OF ICE ON THE RELIABILITY OF PRODUCTION
SYSTEMS IN THE HIBERNIA OIL FIELD
CLIENT: Petroleum Directorate - Government of Newfoundland and
Labrador
DATE: 1984
DESCRIPTION: The investigation of the effect of ice on the
reliability of proposed Hibernia production systems included
identification of ice parameters which are significant
determinants of system design criteria and evaluation of the
effects on system reliability resulting from uncertain estimates
of ice parameters and ice loadings. Risk analytic methodologies
were developed and applied in the risk and reliability analysis
of an example floating production system. |
P8404 |
PHASE II HEARINGS: ERCB INQUIRY INTO THE LODGEPOLE
BLOWOUT
CLIENT: Energy Resources Conservation Board
DATE: 1984
DESCRIPTION: Bercha Final Reports on "Risk Analysis of Sour Gas
Drilling Blowouts in Alberta" (P8303) and "Economic Risk from
Sour Gas Well Drilling Blowouts in Alberta" (P8311) were
submitted as direct evidence by the ERCB. The authors
defended the work following a formal presentation at the public
hearings. |
P8401 |
AN
INVESTIGATION OF LOCAL ICE PRESSURES ON GRAVITY BASE STRUCTURES
- PHASE I
CLIENT: Petro-Canada Resources Inc. DATE: 1984
DESCRIPTION: The work was directed at the development and
application of a preliminary numerical model for the evaluation
of local pressures during iceberg-gravity based structure
interactions. An extremely comprehensive review of all
literature pertinent to icebergs and iceberg-structure
interactions in the Hibernia area offshore Newfoundland was
carried out. A number of models were developed for kinematically
different impacts. These models were used to evaluate the
effects of variations of a number of previously identified
parameters on interaction loads and pressures. The output was
purely deterministic but a sufficiently wide range of parameters
and their values were considered to allow detailed conclusions
regarding local pressures to be drawn. |
|
Geomatics Projects (1984) |
R8421 |
Evaluation
of the Technology for Detecting Small Objects at Sea: Airborne
Sensor Platform
Ministry of Transport
|
R8418 |
Latitude
Longitude Digitization
Husky/Bow Valley East Coast Project
|
R8412 |
Assemble,
Integrate and Flight Test a Marine Mammal Remote Sensing System
for a DH6 Twin Otter
Fisheries and Oceans, Supply and Services Canada
|
R8411 |
Evaluation
of Aerial Remote Sensing as an Environmental Monitoring
Technique for Pipeline Corridors
NOVA, An Alberta Corporation |
R8410 |
Pipeline
SLAR Survey in South Australia
South Australia Department of the Environment
|
R8409 |
1984
Aerial Reconnaissance Study for the Hibernia Development Project
Mobil Oil Canada, Ltd.
|
R8408 |
Scientific
and Technical Support for the Definition of Mission Requirements
for a Satellite Equipped with a Synthetic Aperture Radar (RADARSAT)
The Canada Centre for Remote Sensing, Dept. of Energy, Mines and
Resources
|
R8406 |
Ice
Processes Analysis - Mizex 1983
U.S. Department of the Navy
|
R8405 |
Marine
Radar Program Support
Viatech Resources Systems Inc. |
R8403 |
Iceberg
Aerial Reconnaissance Data Analysis
Mobil Oil Canada Ltd. |
R8402 |
An
Investigation of Remote Sensing Equipment for Chronic Oil
Discharges
Environment Canada |
R8401 |
Airborne
SLAR Surveillance Service - East Coast
Husky/Bow Valley East Coast Project
Date completed: October 1984
DESCRIPTION: Bercha Group (Bercha) was contracted by
Husky/Bow Valley (H/BV) to provide an ice and iceberg
surveillance program in support of offshore drilling activities
in the Hibernia area (Figure 1) during 1984. This was the first
commercial ice and iceberg operational surveillance program in
the area. The program extended from February 8 to June 30.
During that period, 61 missions were successfully flown in the
study area. The principal objective of the project was to
determine the location of the ice edge and icebergs in the study
and relay this information to H/BV in a timely and efficient
manner (Figure 2).
Over 45 000 nm were flown by Bercha during the operational
period and literally thousands of targets were detected.
Comparison with ground truthing data has shown that some of the
targets routinely detected by the Bercha team were growlers as
small as 5 x 7 m. Scientifically, icebergs and other targets
such as ships, buoy anchors, supply vessels and rigs were
discriminated at a minimum of a 90% confidence level. From an
operational point of view, the G-1 and SLAR proved their
reliability and effectiveness as an operational support service.
From an equipment point of view, the SLAR proved its reliability
beyond any question. In the course of 61 flights, only 1 flight
was cancelled due to equipment problems. SLAR more than
adequately demonstrated its ability to perform on an
around-the-clock basis, day or night, and under a variety of
weather conditions. In several instances, the Bercha aircraft
was the only airborne source of information as all other
aircraft were grounded. This was due not only to the aircraft
capability but also to the dedication of the aircrew and their
ability to fly under marginal conditions.
Due to the positional accuracy of the SLAR
integrated with the aircraft horizontal systems, positioning of
icebergs, bergy bits and growlers was available with only
minimal error. Reliability of the equipment and dedication on
the part of the crew reduced the SLAR downtime to a negligible
amount. All-weather capability resulted in an on-call 24-hour
operation. In summary, this first year of ice and iceberg
surveillance was unquestionably successful. Confidence was
developed in the MARS G-1 and SLAR system, the data product, and
the logistics and communications network of a real-time
operation.
Click on images
for enlarged view.
|
|
Figure
1:
Map of Study Area |
Figure 2:
Sample Study Results |
|
1983 |
To Top of Page |
P8320 |
RISK ANALYSIS FOR THE SABLE GAS SYSTEMS
PIPELINE PROJECT
CLIENT: Transcanada PipeLines Ltd. / Sable Gas Systems Ltd.
DATE: 1983
DESCRIPTION: A quantitative analysis of the risks associated
with capital cost estimate overruns and construction schedule
delays was carried out for the three project segments; namely,
the marine pipeline, the gas plant and the land pipeline. The
work involved a detailed analysis of the base estimate,
quantification of the capital cost probability distribution,
determination of contingency requirements to reduce risks,
analysis of escalation effects, evaluation of schedule delay
risks and an assessment of the consequences for project delays
and increased capital costs. Capital cost and schedule delay
risks were quantified as an integral part of an overall project
economic risk analysis undertaken by the client.
|
P8317 |
ICE-STRUCTURE INTERACTION: ENGINEERING DESIGN AND CONSTRUCTION
CRITERIA
CLIENT: Department of Public Works - Supply and Services Canada
DATE: 1983
DESCRIPTION: The work involved development and compilation of a
marine ice load evaluation manual for the determination of total
ice loads and ice load distributions on offshore structures with
emphasis on gravity-based structures. The work was based on the
analytical determination of total ice loads on various types of
bottom-founded structures and on the numerical determination of
the local peak pressures and their distribution. The numerical
analysis was carried out utilizing a non-linear finite element
program. Included in the work was an analysis of ice properties,
structural parameters, development of interaction theory and
generation of representative interaction loads.
|
P8315 |
RISK ASSESSMENT OF TRANSPORTATION SYSTEM FOR SWAN HILLS
AREA MISCIBLE FLOOD
CLIENT: Federated Pipe Lines
DATE: 1983
DESCRIPTION: An assessment of the risks to human safety as a
result of the conversion of an existing oil pipeline to high
vapour pressure, natural gas liquid (NGL) service was carried
out. Results included fault tree representations of accident
scenarios and consequential events, an estimate of the
probability of NGL release, presentation of risk spectra showing
probabilities associated with potential casualty expectations,
assessment of proposed risk mitigation measures and comparison
of the proposed pipeline risks with commonplace casualty risks
which were familiar to the public. |
P8311 |
ECONOMIC RISK FROM SOUR GAS WELL DRILLING BLOWOUTS IN ALBERTA
CLIENT: Energy Resources Conservation Board
DATE: 1983
DESCRIPTION: The work involved an investigation of economic
risks as an extension to the previous risk analysis of sour gas
drilling blowouts in Alberta described under P8303.
Principally, the scope of work was intended to demonstrate the
order of magnitude and trend distribution of tractable economic
risk. The investigation included analysis of blowout event
statistics, definition of physical consequences, classification
of damage consequences by severity of blowout, quantification of
economic risk and ranking of risk mitigation measures by their
benefit-to-cost ratio. |
P8308 |
RISK ANALYSIS OF DRILLSHIP UNITS OPERATING OFFSHORE
LABRADOR
CLIENT: Petroleum Directorate - Government of Newfoundland and
Labrador
DATE: 1983
DESCRIPTION: A risk analysis of the operations of drillships and
dynamically positioned semisubmersibles involved in exploration
offshore Labrador was carried out to identify the principal
scenarios associated with human, environmental, and property
risks. Work included the generation of risk scenarios
associated with drilling operations, mobilization and
demobilization to and from the drillsite, and ancillary
operations supporting the drilling operations. Emphasis was
placed on human risks and causal sequences for accident
scenarios threatening human safety were analyzed using fault
trees. On the basis of the risk analysis, risks were ranked and
the risk mitigating effect and implementation costs of specific
safety enhancement measures were analyzed. |
P8307 |
RISK ANALYSIS PROGRAM DEVELOPMENT
CLIENT: Alberta Environment
DATE: 1983
DESCRIPTION: The work consisted of the generation of a detailed
program plan for the implementation of risk analysis within the
Alberta Government departmental structure. Objectives were
defined, a risk system inventory was compiled including risk
type and risk level. Methodologies for risk analysis were
described and a specific program was defined. Essentially, the
program defined was one encompassing all principal risk sources
associated with those natural and manmade systems within the
jurisdiction of Alberta Environment. These included but was not
restricted to hydrocarbon exploration and production,
petrochemical plants, chemical plants, dams, bridges,
transportation of hazardous goods, landslides, avalanches,
pesticides, microbiological systems, and radioactive
facilities. The program was defined through close interaction
with appropriate Alberta Environment and other government
departments. |
P8306 |
ARCTIC TANKER RISK ANALYSIS - EXTENSION
CLIENT: Canadian Marine Drilling Ltd.
DATE: 1983
DESCRIPTION:
Certain aspects of a previous risk analysis carried out by
Bercha
(P8013) of the proposed crude oil Arctic tanker system were
refined and further studied for an LNG operation. The work
included the development of a probabilistic risk model
associated with maneuverability and stopping capabilities of
the Arctic LNG tankers as well as detailed sensitivity studies
on a number of design modifications, including hull, machinery,
and navigational aspects. The work included risks of hydrocarbon
development in the Beaufort Sea, included the risk work on
Canmar-Gulf Environmental Impact Statement and Bercha personnel
defended the risk analysis in the associated hearings |
P8304 |
PROGRESS PLANT RISK ANALYSIS
CLIENT: Shell Canada Resources Limited
DATE: 1983
DESCRIPTION: The work consisted of the generation of a complete
risk analysis of principle risk-prone components associated with
a particular gas plant project. Specifically, the
implementation schedule and associated partnership participation
components of the project were isolated and analyzed both
independently and interactively. Techniques utilized in the
analysis included Delphi, fault tree, and Monte Carlo methods.
The emphasis of the risk analysis was on development of
applicable decision-making tools and procedures.
|
P8303 |
RISK ANALYSIS OF SOUR GAS WELL DRILLING BLOWOUTS IN
ALBERTA
CLIENT: Energy Resources Conservation Board (ERCB)
DATE: 1983
DESCRIPTION: The work consisted of a comprehensive investigation
of sour gas well drilling blowouts in Alberta, including review
and analysis of relevant historical data, identification and
analysis of relevant causal factors, definition of risk
minimization measures including industry practices and
government regulations, evaluation of the feasibility of risk
minimization measures and recommendation of optimal practices
and other measure for minimization of sour gas blowouts. The
work was carried out on a rigorous statistical level based
principally on a comprehensive database spanning several
decades, which was provided by the ERCB. |
P8301 |
ICE-STRUCTURE INTERACTION DESIGN MANUAL
CLIENT: Amoco Petroleum Company
DATE: 1983
DESCRIPTION: The work involved the development of a
comprehensive ice engineering manual for application in Arctic
and marginal ice zone offshore areas. Specifically, the project
involved the generation of seasonal ice zone maps for each of
the designated study areas, description of the representative
ice zones in graphical and tabular format, quantification of
kinematic and mechanical properties, definition of data and
methodology gaps, calculation of ice loads for all
representative structure types for each study area and season,
and generation of a final report consisting of an ice atlas and
a textual description. The study areas covered included the
entire Alaska offshore from the Aleutian Islands throughout the
Bering Strait, the Chukchi Sea, around Point Barrow, to the
U.S./Canada International Boundary. |
|
Geomatics Projects (1983) |
R8321 |
Directional Wave Spectra Intercomparisons
Environmental Studies Revolving Funds (COGLA)
|
R8319 |
Compilation of Ice Floe Velocities, Pack Ice Motion, Breakout
Events, Multi-Year Ice Fraction, and Ice Edge Locations in the
Chukchi Sea
Joint Industry Project: Participants: Amoco, Arco, Chevron,
Exxon, Mobil, Phillips, Shell, Sohio, Texaco, Union |
R8318 |
Assessment
of Airborne Imaging Radars - Phase II
Environmental Studies Revolving Funds (COGLA)
|
R8316 |
Development of a System for Application of Remote Sensing
Technology and Data to the Estimation of Arctic Marine Mammal
Populations and Distribution
Freshwater Institute, Fisheries and Oceans Canada, Government of
Canada Date completed: March 1984
DESCRIPTION: This was a two-phase study directed at
investigation of remote sensing equipment and techniques suited
for Arctic marine mammal studies was conducted for the
Department of Fisheries and Oceans, Western Office. In Phase I,
current and future airborne and satellite remote sensing methods
suitable for marine mammal surveys were reviewed and the
capabilities of each system assessed. Manufacturers of remote
sensing equipment were contacted and sensors displaying suitable
resolution, operating specifications and capabilities were
enumerated. Detection of marine mammals was classified into
three levels; direct detection of actual mammals, indirect
detection of features indicating mammal presence, and habitat
identification. Each sensor capability for detection and
identification of marine mammals was assessed, and the results
were quantified through a sensor capability matrix. Aerial
survey equipment and satellite sensor capabilities were examined
for indirect and habitat detection and identification.
Additionally, Phase I addressed availability of data,
characteristics of platforms and ancillary hardware such as
annotation systems and navigation equipment. Suitable systems
were presented for further study. A map showing the study area
is shown in Figure 1.
Phase II involved development of an optimal
survey system design, including definition of optimal remote
sensing systems, design of tests for reliability and system
capability, and definition of areas for further research and
development.
Image samples from the imaging systems considered
are shown for SLAR (Figure 2), SAR (Figure 3), NOAA (Figure 4),
and LANDSAT (Figure 5).
Click on images
for larger view
|
|
|
Figure
1: Map of Study Area
|
Figure 2: Side-Looking
Real-Aperture Imaging Radar (SLAR) image – Each 25
km wide swath shown is imaged on either side of the
aircraft with a ‘delay’ zone underneath the aircraft of
5-10 km either side of the flightline. In this example,
ice information such as concentration, and water
features such as poynyas and leads are clearly evident.
|
Figure 3: Synthetic Aperture Radar (SAR) – Provides
high-quality ice data, particularly on small ice
features such as ice fragments, streamers and bands.
This figure illustrates an area of highly fragmented ice
in the Labrador Sea, imaged by SAR, in which the data
are digitally recorded, then processed onto positive
film. This is a one-look system, imaging on one side of
the plane only. |
|
|
|
Figure 4: National Oceanographic and Atmospheric
Administration (NOAA) satellite data source. Example
of a NOAA satellite image recorded in the visible
wavelength. As the visible wavebands are used, cloud and
fog will be imaged as shown in the example over the
darker, open water areas. The 1.1 km resolution of NOAA
imagery restricts its usefulness in marine mammal
investigations to general habitat data (Uses 2,400 km
wide swath.). |
Figure 5: LANDSAT satellite image – Illustrated is a
LANDSAT multispectral scanner (MSS) image. The
resolution restricts it to providing general habitat
information only. (Uses a 186 km swath.) |
|
|
R8313 |
South
Beaufort Sea Pack Ice Edge, SLAR Investigation
Joint Industry Project: Participants: Amoco Production Company,
Mobil Exploration & Production Services, Shell Development
Company, Sohio Petroleum Company
|
R8312 |
Investigation of Summer Pack Ice Invasion in the South Beaufort
Sea - 1983
Joint Industry Project: Participants: Amoco, Mobil, Shell, Sohio
|
R8310 |
Compilation of Ice Floe Velocities and Edge Locations and their
Relationship to Surface Weather Patterns in the Navarin Basin,
Bering Sea
Joint Industry Project: Participants: Amoco, Chevron, Exxon,
Mobil, Phillips, Shell, Sohio
|
R8305 |
Scientific
and Technical Support for the Definition of Mission Requirements
for a Satellite Equipped with a Synthetic Aperture Radar (RADARSAT)
The Canada Centre for Remote Sensing, Dept. of Energy, Mines and
Resources |
R8302 |
Mizex
Airborne Data Acquisition Optimization
Joint Industry Project: Participants: Arco, Chevron, Sohio |
R8301 |
SLAR Ice
Surveillance - Beaufort Sea Drilling Operations
Canadian Marine Drilling Limited |
1982 |
To Top of Page |
P8219 |
RISK ANALYSIS OF OKOTOKS SOUR GAS
FACILITIES
CLIENT: Canterra Resources Limited
DATE: 1982
DESCRIPTION: The work consisted of a classical complete risk
analysis of the sour gas facilities located near Okotoks and
operated by Canterra Resources Limited. Specifically, the gas
plant, gathering system, and wells were analyzed for risks
associated with the accidental release of hydrogen-sulphide
gas. The risk analysis included evaluation of initial risk,
initial risk decomposition, dispersion modeling, and ultimate
hazard evaluation represented in the form of risk spectra and
separation distance plots.
|
P8218 |
ICE
STRUCTURE INTERACTION
CLIENT: Amoco Production Company DATE: 1982
DESCRIPTION: The work consisted of the generation of a
comprehensive ice atlas providing probabilistic ice interaction
loads for the Alaska offshore continental shelf. Ice kinematic
and mechanical properties were assimilated and tabulated for all
ice features on the Alaskan OCS from the Aleutian Islands to the
Beaufort Sea. Probabilistic ice properties were used to
determine probable static ice loads were calculated with
sufficient reliability to allow evaluation of costs for Alaska
OCS lease sales. |
P8215 |
ANALYSIS
OF INTERACTIONS OF ICE COVER WITH A SEMI-SUBMERSIBLE DRILLING
UNIT
CLIENT: Joint Industry Project: Participants: Texaco, Conoco,
Union DATE: 1982
DESCRIPTION: The work included the development of a mathematical
model and generation of results for the interaction of ice cover
with the columns of a semi-submersible drilling unit operated in
marginal ice zone areas. Specifically, the work included
state-of-art documentation, environmental and operational
parameter definition, theory development, generation of
numerical results for representative semi-submersible vessels,
and detailed reporting. Extensions of the work included detailed
investigation of bridging and non-linear phenomena. Bridging
phenomena associated with pile-up formation and sustenance of
stable rubble bridges among the columns was investigated
utilizing principals of linear and non-linear stability. The
effects of non-linear responses of the mooring systems were
included in the form of sensitivity coefficients in the linear
mooring system response. |
P8213 |
RISK ANALYSIS OF SHELL PROPOSED MOOSE MOUNTAIN PIPELINES
AND RELATED FACILITIES
CLIENT: Shell Canada Resources Ltd.
DATE: 1982
DESCRIPTION: The work consisted of a systematic risk analysis of
the sour gas facilities proposed by Shell to develop the Moose
Mountain Field. Analysis of the production well, gathering
pipeline and compression facilities included hazard
identification, sour gas release probability estimation,
detailed site specific gas dispersion modeling in association
with Alberta Environment, and ultimate public risks evaluation.
Results were presented as critical H2S dosage probability maps
and the individual risk for people using the nearby recreational
areas was compared to other common risks of everyday life.
|
P8212 |
RISK ANALYSIS OF SEMI-SUBMERSIBLE UNITS OPERATING OUT OF
NORTHEAST GRAND BANKS
CLIENT: Petroleum Directorate
DATE: 1982
DESCRIPTION: The work consisted of a risk analysis with respect
to human safety of the above facilities, including hazard
identification and decomposition, identification and evaluation
of safety enhancement methods, estimation of probabilities of
hazards utilizing risk analytic techniques, and generation of
inferences, conclusions, and recommendations on the basis of the
work. |
P8208 |
ICE LOAD RELIABILITY ANALYSIS SYSTEM
CLIENT: Gulf Canada Resources Inc.
DATE: 1982
DESCRIPTION: The work involved the development of an ice load
risk analysis system applicable to the reliability analysis of
offshore structures in ice infested waters. The principal
structure type analyzed was a caisson island in moderately deep
water at a site in the South Beaufort Sea. The work essentially
included the development of failure scenarios leading to risk to
capital and operating costs and human life. Following
definition of the scenarios, associated structural response
probabilistic measures and the associated probabilistic ice
loading conditions were quantified. Synthesis involved
association of all failure modes, response spectra, and causal
spectra through probabilistic fault tree and event tree networks
leading to a probabilistic quantification of the reliability of
the installation within the Arctic offshore environment.
|
P8206 |
RISK ANALYSIS OF THE GRASSY POINT LNG TERMINAL
CLIENT: Port Simpson Indian Band
DATE: 1982
DESCRIPTION: An evaluation of the risks to human safety and
property damage as a result of the construction and operation of
a natural gas liquefaction plant and LNG tanker loading terminal
operating in the vicinity of the Indian settlement at Port
Simpson was carried out. The work involved the development of
accident risk scenarios utilizing the fault tree techniques,
quantification of risks, evaluation of consequences, evaluation
of Dome proposed risk mitigation and contingency plans,
recommendation on other risk amelioration measures, and overall
risk evaluation through comparison to accident scenarios having
similar risk levels with which the client has an intuitive
familiarity. |
P8201 |
ICE-STRUCTURE INTERACTIONS - ALASKAN OCS
CLIENT: Phillips Petroleum Company DATE: 1982
DESCRIPTION: The work involved generation of a reference manual
for planning, evaluation, and preliminary design of structures
in marine ice-covered waters in selected areas of the offshore
continental shelf of Alaska. The work was relatively
comprehensive, spanning the definition of ice properties for
each of the principal lease areas, calculation of ice loads, and
generation of structural concepts for different offshore service
conditions. The work included definition of ice properties and
associated structural concepts for a range of water depths in
lease areas in the South Beaufort Sea, the Chukchi Sea, Norton
Basin, Bristol Basin, Navarin Basin, and the St. George Basin. |
|
Geomatics Projects (1982) |
R8217 |
Ice Floe
Velocity and Edge Locations - Norton Sound, Bering Sea
Exxon Company, USA |
R8216 |
Flaxman -
West Harrison SLAR Freeze-up Survey
Exxon Company, USA
|
R8214 |
Arctic
Basin Ice Morphology SLAR Investigation
Panarctic Oils
|
R8211 |
Operational Winter Ice Forecast Model
Canadian Marine Drilling Ltd.
|
R8210 |
SLAR
Investigation of Chukchi Sea Ice Dynamics and Morphology
Joint Industry Project: Participants: Amoco, Chevron, Sohio |
R8209 |
Beaufort
Sea 1982 SLAR Ice Break-up Dynamics and Morphology
Joint Industry Project: Participants: Arco Oil & Gas, Shell,
Sohio |
R8208 |
SLAR
Aerial Support of South Beaufort Sea Drilling Operations Through
Aerial Support, UHF Downlink, and Field Interpretation
Canadian Marine Drilling Ltd |
R8207 |
Micro-Densitometric
Decomposition of SLAR Imagery for Evaluation of Ice Cover
Morphological Properties
Lapp and Associates Limited
|
R8206 |
SLAR
Investigation of Chukchi Sea Ice Dynamics and Morphology
Alaska Oil and Gas Operators Association
|
R8205 |
Investigation of Multi-Sensor Marine Ice Relief in the Bering
Sea and Areas Around Prince Patrick Island
Atmospheric Environment Service, Dept. of the Environment
|
R8204 |
Analysis
of Enhanced LANDSAT Imagery for Resource Management in Ghana
Wordrup, Delowitte, Haskins, and Associates
|
R8203 |
Remote
Sensor Information for Resource Management Applications
Canada Centre for Remote Sensing, Dept. of Energy, Mines, and
Resources |
R8202 |
Acquisition of Side-Looking Airborne Radar (SLAR) of Wabamun
Lake, Alberta
Monenco Consultants |
R8201 |
Provision
of Real-Time SLAR Support to South Beaufort Sea Drillships
Canadian Marine Drilling Limited |
1981 |
To Top of Page |
P8121 |
NORWEGIAN
REFRIGERATED GRAVITY ICE ISLAND
CLIENT: Husebye and Olsen DATE: 1981
DESCRIPTION: The work involved coordination and management
activities directed at bringing together a viable consortium for
the development of a patented system for the generation of
ice-reinforced structures applicable to oil exploration in
Arctic ice-infested waters.
|
P8119 |
EVALUATION OF HIGH PRESSURE LARGE
DIAMETER GAS PIPELINE RUPTURE
CLIENT: Algas Resources Ltd.
DATE: 1981
DESCRIPTION: The work consisted of simulation and analysis of
statistics of large diameter gas pipeline ruptures in northern
Canada. Yield of the work consisted of a series of cumulative
distribution functions giving probabilities of exceedance for
different rupture types as well as cumulative rupture
capabilities.
|
P8118 |
CDU ICE
MANAGEMENT SIMULATION
CLIENT: Gulf Canada Resources Inc. DATE: 1981 - 1982
DESCRIPTION: The work involved the development of a predictive
Monte Carlo simulator of ice cover and its interaction with an
ice management program associated with the operation of the
moored conical drilling unit on location in the South Beaufort
Sea. The ice cover was rigorously simulated utilizing a hybrid
deterministic/Monte Carlo technique which resulted in the
generation of continuously varying ice cover representative of
various seasonal periods from freeze-up to break-up. Features
simulated included pressure ridges, multi-year floes, and ice
sheets of various thicknesses. The cover generator was developed
on the basis of cumulative distribution functions for the
characteristic ice cover parameters obtained by reducing data
available from GCRI. The operational component of the simulation
involved the Monte Carlo modelling of the cover at a level or
condition which the CDU can tolerate. The work included ice
cover simulator design, ice management program analysis, and the
generation of both sensitivity, predictive, and specific
scenario forecast results. |
P8114 |
ANALYSIS
OF THE NORWEGIAN ICE GRAVITY PLATFORM
CLIENT: Aker Engineering A/S DATE: 1981
DESCRIPTION: The work involved the evaluation of the
interactions of a special refrigerated structure with the Arctic
environment through its construction, installation, and
operational phases. Specifically, risk to the structure
associated with operational ice loads, with free-floating and
seasonally variable ice cover, and with maximum return period
ice loads was evaluated. The principal components of the
structure are to be constructed on the west coast, and the
logistics of a tow around Point Barrow during the ice-free
summary window were considered. |
P8109 |
ICE LOAD
RISK OF SPECIAL ARCTIC DRILL BARGE
CLIENT: Gulf Canada Resources Inc. DATE: 1981
DESCRIPTION: The work involved the probabilistic evaluation of
interactions through a spectrum of interaction modes associated
with dynamic ice cover interacting with a special moored Arctic
drill barge. Interactions involving first-year ridges,
multi-year ridges, multi-year floes, and level ice were
described by means of interaction equations in probabilistic
form. Loads associated with a probabilistic severity
distribution were generated. The probability of structural
survival was then quantified on the basis of cumulative
distribution function inputs and scenario fault trees. |
|
Geomatics Projects (1981) |
R8122 |
Preliminary Assessment of a Proposal to Establish an
International Satellite Monitoring System Under United Nations
Auspices
Department of External Affairs |
R8120 |
Study of
Airborne Remote Sensing Requirements and Packages Applicable to
Canadian Needs for Oil Spill Detection and Surveillance
Environment Canada
|
R8117 |
Quantification and Analysis of Ice SLAR Signature
Characteristics
Environment Canada, Ice Forecasting Centre
|
R8116 |
Acquisition and Interpretation of SLAR Ice Imagery Along the
South Beaufort Sea Polar Ice Pack Edge
Mobil Oil Corporation
|
R8115 |
Scientific
and Technical Support for the Definition of Mission Requirements
for a Satellite Equipped with a Synthetic Aperture Radar (RADARSAT)
The Canada Centre for Remote Sensing, Dept. of Energy, Mines,
and Resources
|
R8112 |
Acquisition, Interpretation, and Analysis of Katy's Floeberg
SLAR Imagery
Gulf Canada Resources Inc.
|
R8111 |
Analogue/Digital Conversion of Laser Records of Ice Relief
Profiles
Berok Systems Limited
|
R8108 |
Interpretation of SLAR Ice Imagery for the Norton Sound Area
Joint Industry Project
|
R8107 |
Ice
Concentration Quantification at Canmar Drillsites
Canadian Marine Drilling Ltd.
|
R8106 |
Evaluation
of Ice Cover Seasonal Variations in South Beaufort Sea
Drillsites on the Basis of SLAR and Satellite Imagery
Canadian Marine Drilling Ltd. |
R8105 |
Sea Ice
SAR and Aerial Photographic Reconnaissance in the Hibernia Area
Mobil Canada Limited
|
R8104 |
Remote
Sensing Multi-Sensor Environmental Monitoring Program of
Foothills Pipe Line Right-of-Ways in B.C. and Yukon (MSS-TIR-FCIR
Colour)
Foothills Pipe Lines (Yukon) Limited
|
R8103 |
SLAR
Aerial Support of South Beaufort Sea Drilling Operations
Canadian Marine Drilling Ltd. |
R8102 |
Comparison
of SLAR Imagery of the Nearshore Alaska Coastline with
Corresponding Aerial Photography for Microwave Signatures of Sea
Ice
Atmospheric Environment Service, Environment Canada |
R8101 |
Snow Cover
LANDSAT Imagery, Alpine Ski Area Evaluation
Travel Alberta |
1980 |
To Top of Page |
P8018 |
AN EVALUATION OF OIL SPILL RISKS ASSOCIATED WITH
EXPLORATORY DRILLING IN LANCASTER SOUND
CLIENT: Petro-Canada Resources
DATE: 1980-81
DESCRIPTION: Work involved a quantification of risks of oil
spills of various levels - chronic, accidental, and catastrophic
- associated with the operation of the total offshore
exploration system operated by Petro-Canada in the Lancaster
Sound area. System components include drillship and
semi-submersible drilling systems, supply and ice management
vessels, barges, aircraft, and the associated shore base and its
logistics. Principal methodology utilized was that of modified
fault tree techniques and direct statistical and probabilistic
analyses. Results of the study included spill expectations and
their spatial and temporal distributions within the space-time
system matrix. |
P8016 |
INTEGRATED RISK
AND RELIABILITY ANALYSIS – ARCTIC PILOT PROJECT
CLIENT: Petro-Canada Exploration, Inc.
DATE: 1981
DESCRIPTION: Information concerning the operational, economic,
environmental, and scheduling aspects of the project was
collected from the project’s sponsors. As a basis for
comparison, data on existing LNG operations, and on other recent
large energy projects in Canada, Alaska, and the North Sea were
collected from other sources.
The project’s rate of return on equity investment was
chosen as the risk index, a common denominator for measuring all
the project risks. The sponsors’ Generalized Evaluation Model
(GEM), an economic evaluation computer program, was chosen as
the primary computational tool. The initial analysis of the
project consisted principally of identifying elements of the
project, called risk centres, that face distinct sets of risks.
The risks associated with each of these project elements were
quantified in the form of a probability distribution function
for input to the GEM program, principally through the use of the
fault trees analysis technique. The program determined the
effect of the risks on the risk index through the technique of
Monte Carlo simulation. The final result was an expected rate of
return on investment of 17.3%, with the main risks being due to
the external factors of market prices and inflation rates.
Recommendations are made for the reduction of the project’s
risks. In addition to the technical work, expert testimony was
provided by Dr. Bercha at NEB hearings on the project in Ottawa
over a three week period.
|
APP Icebreaking LNG Tanker |
|
P8014 |
A
PROBABILISTIC STUDY OF ICE LOADS ON CAISSON ISLANDS
CLIENT: Gulf Canada Resources Ltd. DATE: 1980
DESCRIPTION: The work consisted of a review of statistical
analysis of available ice properties in the south Beaufort Sea
and their application as inputs to a probabilistic analysis of
ice loads on a contemplated Caisson Island in the 60-foot water
depth range in that area. The probabilistic analysis was
developed on the basis of FGBAL in-house expertise, utilizing
the statistical property inputs, and used to generate a series
of probabilistic load spectra, including return period
considerations, for the full load range scenarios envisioned for
the island.
|
P8013 |
ARCTIC TANKER RISK ANALYSIS - PHASE II
CLIENT: Dome Petroleum Limited
DATE: 1980
DESCRIPTION: Work consisted of a substantial update of a
previously carried out Arctic Tanker Risk Analysis. Design and
operational information of the tanker system was assimilated and
analyzed as well as information of relevant tanker accident
statistics based on recent studies carried out by governments
and classification agencies and other sources as applicable. An
analysis of various Northwest Passage routes utilizing FGBAL's
tanker route software risk analysis fault tree packages was
carried out. Results included calculation of spill
probabilities and expectations for each segment of the route for
both Arctic and conventional tankers, execution of sensitivity
calculations to determine the risk dependence on major
constituent factors, including critical spill causal areas in
the accident scenario, and a bound risk estimate on the basis of
information on confidence limits of the critical parameters
obtained. All calculations were carried out utilizing the FGBAL
software library with some probabilistic and statistical adjunct
analyses.
|
P8010 |
PRELIMINARY ENVIRONMENTAL IMPACT STATEMENT PREPARATION FOR
ALBERTA OIL SANDS EXTRACTION PLAN
CLIENT: McLeay Geological Services Limited
DATE: 1980
DESCRIPTION: The work included the outline of the requirements
for the preparation of an Environmental Impact Statement
associated with the development of an Athabasca Tar Sands Open
Pit Mining Operation. Description of application and approval
procedure, environmental impact statement definition, and
identification of additional work including field data gathering
and analysis for support of the environmental impact statement
was carried out. In particular, data gaps and suitable field
and laboratory programs associated with the hydrogeology of the
area and the biophysical systems were reviewed. Additional
information requirements for generation of a total environmental
assessment concept, including execution of individual
environmental assessments, with consideration of all phases of
the development from construction through operation, to
abandonment, through development of mitigating measures which
can be implemented by the proponent and identification of early
residual impact was included. |
P8008 |
RISKS ASSOCIATED WITH HAZARDOUS WASTE TRANSPORT AND STORAGE
CLIENT: Environment Council of Alberta
DATE: 1980
DESCRIPTION: Following a literature review, field studies, and
the gathering from various public and private sources of
accident data relating to hazardous materials incidents, an
accident risk analysis was performed. This analysis included
the development of scenarios for the accidental release of
hazardous waste during transportation, unloading, and storage;
the probabilistic analysis of accident scenarios to discover the
quantitative relationships between main risk parameters and the
probabilities and expected severities of accidental releases;
and sensitivity analyses that assessed the effect of selected
risk parameters on accident probabilities. Relative levels of
risk were also evaluated for specific transportation routes and
several configurations of gathering sites and disposal
facilities. |
P8006 |
GENERAL
ARCTIC RETAINERSHIP
CLIENT: Dome Petroleum Limited DATE: 1980
DESCRIPTION: High level technical consultations to Dome in
specific areas of Arctic engineering including the following:
(a) Optimal offshore structure program development for
production structures.
(b) Development of ice load instrumentation system for a
structure to serve for an exploration platform and as a basis
for an instrumented platform giving large-scale ice
measurements.
(c) Development of optimal ice management program associated
with offshore production atoll to permit feasible shipping and
logistics operations.
(d) Development of optimal Arctic environmental information
retrieval system for operational support for exploratory and
production operations. |
P8005 |
ARCTIC
MARINE ICE FIELD SAMPLING, LABORATORY TESTING, AND ANALYSIS
CLIENT: Sohio Petroleum Company DATE: 1980
DESCRIPTION: The work included the recovery of ice blocks from
the ice cover in the Prudhoe Bay area in areas adjacent to
future drillsites, in locations expected to coincide with C-axis
oriented ice. Strategic samples were prepared in the laboratory
from the blocks taken in the field, evaluated for crystal
orientation utilizing crystallographic methods, and tested for
compressive strength at various strain rates and orthogonal
directions in order to ascertain the effect of C-axis
orientation on strength. A detailed statistical correlation
analysis and development of strength functionals was carried out
using as a basis the data generated through the program. |
P8002
.01 |
ICE AND SEA MODEL FOR BAFFIN BAY AND LANCASTER SOUND
CLIENT: Petro-Canada
DATE: 1979/1980
DESCRIPTION: Data on the general environment with specific
emphasis on icebergs, ice floes, ice cover, and sea state were
gathered for an extended history as well as for a representative
severe year. Statistical and probabilistic analysis of the data
was carried out in order to extract relationships required for a
basis for the stochastic generation of a synthetic environment.
A Monte Carlo model of the environment utilizing random draw
probabilistic constraint techniques was developed, permitting
outputting of detailed time sequence histories of the synthetic
environment. The model consisted of several submodels; namely,
an iceberg tracking submodel, an ice floe tracking submodel, an
ice cover predictor, an ice break-up predictor, and a sea state
mode. The sea state model was driven by a synthetically
generated wind model based on empirical data. The synthetic
environmental generator produced is a rigorous stand-alone Monte
Carlo Model capable of simulating environmental conditions
including hundred year extremes based on statistical and
probabilistic extrapolation of historical data.
|
P8002
.02 |
MONTE CARLO SIMULATION OF DOWNTIME RISK ASSOCIATED WITH
DRILLING OPERATIONS IN LANCASTER SOUND AND NORTH
BAFFIN BAY
CLIENT: Petro-Canada
DATE: 1980-1981
DESCRIPTION: Previous work by Bercha on the simulation of
offshore operations was refined through the development of a
Monte Carlo simulator ultimately generating a probability
distribution of the downtime likely to be associated with
drilling operations in the geographical study areas. Included
in the simulator were icebergs, ice cover, wind and wave
effects, mechanical problems on both ship and drilling
procedures, logistic failures, and other significant subsystems
contributing to the risk of operational downtime. The sub-study
run concurrently with the Monte Carlo simulation involved the
generation of accident probabilities and their cumulative
distribution functions for the operations, to be fed into the
Monte Carlo simulator. These accident probabilities were
generated utilizing a modified fault tree approach which
produced varied distributions associated with a range of
accidents of different severity ratings, ranging from a
catastrophic blowout to minor structural marine riser damage.
|
P7913 |
AN ASSESSMENT OF THE RISKS ASSOCIATED WITH THE
TRANSPORTATION AND STORAGE OF PCBs FOR DISPOSAL AT A CEMENT PLANT
CLIENT: Department of the Environment
DATE: 1979-1980
DESCRIPTION: The work included the execution of a risk and
hazard and consequence analysis of potential accidents
associated with the transportation, storage, and disposal of
polychlorinated biphenyls (PCB's). Functional phases of the
work included information gathering, fault tree network
generation, statistical analysis, consequence scenario
generation, and result generation and interpretation as well as
determination of primary risk issues and generation of
recommendations for system improvement. Major fault trees
included those associated with the truck tanker transport of the
PCB liquids, their transfer from trucks to storage facilities,
and their ultimate transfer from the storage facilities and
disposal in a cement kiln. A specific plant site was studied in
order to permit better corroboration of some of the scenarios
envisioned. |
|
Geomatics Projects (1980) |
R8020 |
Acquisition and Interpretation of SLAR Ice Imagery in the Bering
Sea Area
Joint Industry Project: Participants: Amoco, Arco, Exxon, Mobil,
Phillips
|
R8015 |
SLAR
Imagery Acquisition and Interpretation of the Yukon Delta
Amoco Production Company
|
R8012 |
Labrador
Sea Ice Information Compilation and Review
Petro-Canada Resources |
R8009 |
Acquisition and Interpretation of SLAR Ice Imagery in the
Prudhoe Bay Area
Joint Industry Project: Participants: Arco, Chevron, Exxon,
Mobil, Phillips, Sohio Date completed:
March 1981
DESCRIPTION: An aerial remote sensing,
interpretation, and analysis program was carried out in order to
generate information on ice break-up in the Prudhoe Bay area
(Figure 1) in the Spring of 1980. The acquisition program
consisted of the utilization of SLAR and aerial cameras for the
acquisition of strategic imagery in the study area. Ancillary
programs were included for groundtruthing, visual aerial
observation by expert observers, and 35 mm photography. The SLAR
overflight program consisted of a series of 9 sequential
overflights to gather SLAR imagery in a 50 mile wide strip
adjacent to the coast from Point Barrow to Barter Island, and
several other special overflights both seaward into the
multi-year pack and over designated near-shore areas.
The imagery output consisted of complete SLAR coverage prints,
mosaics, 400 planimetric aerial strip photographs, and numerous
35 mm prints and slides. The information yield, in addition to
the imagery itself, consisted of the results of several levels
of interpretive work, ranging from descriptive pictorial outputs
to rigorous numerical results. The general interpretation
program consisted of the generation of descriptive overlays for
all the SLAR imagery. Quantitative interpretation results were
generated utilizing a Bercha Group software package, yielding
ice morphology and dynamics parameters statistically describing
floe and feature characteristics, velocity fields, and other
statistical and probabilistic parameters for the ice cover.
Results of the numerical work were summarized in tabular and
graphical format, adequately characterizing many of the
mesoscale ice morphology and dynamics characteristics and their
distributions throughout the break-up period over the spatial
field of the survey area. Additional
interpretation work was carried out to expand current capability
to interpret radar signatures of various ice features, including
multi-year floes, ridges, and deformed ice. The physical yield
of the work included over 250,000 sq. mi. of multi-sensor
imagery at various scales, dominated by complete coverage of
SLAR at a 1:250,000 scale, the scale controlled SLAR mosaics,
aerial colour photographs, 35 mm colour photographs and slides,
and the final report described herein. Conclusions of the work
were presented, including conclusions of the efficacy of the
methodology utilized as well as specific conclusions on the
character of the ice system studied. Recommendations for further
work for additional information extraction from the present
imagery as well as for other programs were presented. Some of
the photographic images generated during this project are shown
in Figures 2 and 3.
|
R8007 |
Assessment
of Relative Merits of Microwave and Visual Spectrum Sensing
Techniques for Evaluation of Environmental Impact Parameters
Berok Systems Limited |
R8003 |
Comparative Study of Landsat, SLAR, and SAR Imagery for
Quantitative Evaluation of Lineament Distributions and Gradients
in the North Central Plains
Conoco Exploration Company |
R8002 |
Acquisition and Interpretation of Multi-Sensor Imagery (SLAR,
TIR, FCIR, MSS) For Assessment of Seasonal Variations in
Rangeland Biomass
Department of Agriculture |
1979 |
To Top of Page |
P7913 |
AN ASSESSMENT OF THE RISKS ASSOCIATED WITH THE
TRANSPORTATION AND STORAGE OF PCBs FOR DISPOSAL AT A CEMENT PLANT
CLIENT: Department of the Environment
DATE: 1979-1980
DESCRIPTION: The work included the execution of a risk and
hazard and consequence analysis of potential accidents
associated with the transportation, storage, and disposal of
polychlorinated biphenyls (PCB's). Functional phases of the
work included information gathering, fault tree network
generation, statistical analysis, consequence scenario
generation, and result generation and interpretation as well as
determination of primary risk issues and generation of
recommendations for system improvement. Major fault trees
included those associated with the truck tanker transport of the
PCB liquids, their transfer from trucks to storage facilities,
and their ultimate transfer from the storage facilities and
disposal in a cement kiln. A specific plant site was studied in
order to permit better corroboration of some of the scenarios
envisioned. |
P7912 |
ANALYSIS
AND SYNTHESIS OF EXXON CONE TEST DATA
CLIENT: Dome Petroleum Limited DATE: 1979
DESCRIPTION: Raw and semi-processed data from a series of small
prototype 30° monocone ice interaction tests were reviewed,
processed, and applied to the development and verification of
certain mathematical models of the interactions. These
interactions involved sheets, consolidated ridges, and
consolidated and unconsolidated rubble piles. A new mathematical
model for the interactions of ice rubble with rigid structures
was developed and corroborated with the model test data. Both
prototype and full-scale predictions were generated on the basis
of the work.
|
P7910 |
LNG
TERMINAL DESIGN FOR ELLEF RINGNES ISLAND - PETRO-CANADA
CLIENT: Genstar Construction Limited DATE: 1979
DESCRIPTION: Provision of Arctic expertise to a design
consortium for evaluation of alternative LNG terminal schemes to
be located at Ellef Ringnes Island. Navigational ice conditions
evaluation, ice management at terminal, construction and
operational logistics, and preliminary engineering of wharf and
terminal structures were included. Ice conditions were obtained
from review and interpretation of aerial photomosaics
supplemented by black-and-white panchromatic imagery. Several
alternate routes and terminal configurations were studied.
|
P7907 |
DESIGN
CRITERIA FOR CAISSON ISLAND PLATFORM SYSTEM
CLIENT: Dome Petroleum Limited DATE: 1979
DESCRIPTION: Deep water post-tensioned concrete vertical-sided
cylindrical caisson island loadings for governing iceload
conditions in the south Beaufort Sea were established. The work
involved qualitative review of interactions, design philosophy
recommendation, and generation of applicable load spectra for
specific structures.
|
P7906 |
STUDY OF
ICE LOADS ON ARTIFICIAL ISLANDS
CLIENT: Sohio Petroleum Company DATE: 1979
DESCRIPTION: Establishment of design criteria for artificial
islands for hydrocarbon wildcat and production drilling in
shallow waters off the Alaskan north coast. Three types of
islands were considered; namely, vertical-sided and slope-sided
caissons, ice-reinforced gravel, and conventionally reinforced
gravel islands. Remote sensing information for three consecutive
winters covering the Prudhoe Bay lease area was analyzed to
provide a basis for ice kinematics. A variety of ice formations,
including sheets, rubble piles, ridges, and ice islands, as well
as ice conditions ranging from landfast to dynamic states were
considered. Output was in a form amenable to structural
designers.
|
P7905 |
EVALUATION
OF ARCTIC PLATFORM SYSTEMS
CLIENT: Chicago Bridge and Iron Company DATE: 1979
DESCRIPTION: Provision of specialist consultant services for
evaluation of various proprietary structural concepts for
offshore structures in Arctic waters. Work involved concept
review, calculations, and generation of ice properties and
interaction loads for the concepts under consideration. |
P7903 |
ICE-HULL
DYNAMIC INTERACTION ANALYSIS
CLIENT: Melville Shipping Ltd. DATE: 1979
DESCRIPTION: A theoretical and experimental investigation
directed at improving predictions of dynamic ice-hull
interaction
loads generated during ice-breaking transits by Class 7 Arctic
LNG carriers through the Northwest Passage. The work emphasized
time-dependent nonlinear dynamic Arctic marine ice action on
hull, including consideration of scale effects, nonlinear
velocity effects on constitutive law, and interaction dynamics.
The experimental program included application of high-speed
fracture mechanics photography and strain monitoring techniques. |
P7902 |
DRILLSHIP OPERATION SIMULATION N. BAFFIN
BAY AND LANCASTER SOUND
CLIENT: Petro-Canada
DATE: 1979
DESCRIPTION: A system-discrete simulation study involving
modeling of dynamically positioned drillship interacting with
environment in order to evaluate downtime risk. Work involved
data interpretation and processing and development of
environment and drillship simulator. Remote sensing data
including LANDSAT mosaics were used for ice condition
information. Environment simulator was based on a Monte Carlo
approach, involving generation of historically based synthetic
data giving weather and sea states, ice cover, and iceberg
conditions for specific drilling locations. Deterministic
drilling curves were augmented with stochastic forms of well
control and mechanical problems. Work involved substantial data
processing, synthetic data generation, probabilistic analysis,
to serve as a basis for cost benefit and environmental impact
evaluation of drilling operations in north Baffin Bay and
Lancaster Sound Petro-Canada drillsites.
|
P7901 |
CRUDE OIL TANKER RISK ANALYSIS
CLIENT: Department of Fisheries and Environment
DATE: 1979
DESCRIPTION: Risk analysis including discrete simulation of
several existing and proposed oil tanker operations in Canadian
waters. Work includes detailed analysis of tanker accident
scenarios by fault tree decomposition in order to assess
accident frequencies for different types of operations,
terminals, routes, geographical locations, and environmental
variables. Model development and verification with
well-documented case studies as well as risk projections for
existing and proposed operations constitute part of the work. |
1978 |
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P7829 |
SOUTH SASKATCHEWAN RIVER BASIN PLANNING
PROGRAM PRELIMINARY HYDROLOGIC AND PLANNING MODELS
CLIENT: Alberta Environment
DATE: 1978
DESCRIPTION: Preparation of specifications and methodology for
the development and use of computer simulation models in the
long-term planning program for the South Saskatchewan River
Basin in Alberta. A master hydrologic simulation model was
defined to model streamflows in the Bow, Oldman, and Red Deer
Rivers plus the irrigation projects and hydroelectric
reservoirs. The model uses stochastic hydrology representative
of future natural water supply to the Basin to evaluate
alternative management strategies for operation and development
of water storage schemes, irrigation projects, and the Basin in
general. The hydrologic data was analyzed and methods for in-filing
data gaps using correlation techniques were prepared.
Techniques to maintain control of data quality using spatial and
temporal serial correlation of streamflows were defined.
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P7826 |
CRUDE OIL TANKER RISK ANALYSIS
CLIENT: Department of Fisheries
DATE: 1978
DESCRIPTION: Risk analysis including discrete simulation of
several existing and proposed oil tanker operations in Canadian
waters. Work includes detailed analysis of tanker accident
scenarios by fault tree decomposition in order to assess
accident frequencies for different types of operations,
terminals, routes, geographical locations, and environmental
variables. Model development and verification with
well-documented case studies as well as risk projections for
existing and proposed operations constitute part of the work.
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P7825 |
LATERAL
ICE PRESSURE ICEBREAKING RESISTANCE STUDY
CLIENT: Melville Shipping Ltd. DATE: 1978
DESCRIPTION: Estimate of the added resistance to icebreaking LNG
tanker movement on Arctic route due to wind- and current-induced
ice pressure. The work involves the integration of ice pressure
effects into the ice-ship interaction equations for a spectrum
of conditions likely to be encountered along the route. Review
of environmental data, including remote sensing, field sampling,
and model test results, ship design parameters, route and
schedule constraints was carried out to generate major inputs to
the analysis.
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P7823 |
THERMAL
DISTRIBUTION ICE MANAGEMENT DRILLSHIP CANOPY
CLIENT: Canadian Marine Drilling Limited DATE: 1978
DESCRIPTION: Preliminary engineering and logistics design,
including structural, mechanical, and naval design and logistics
planning for structural canopy to be deployed at perimeter of
drillship in order to maintain an ice-free area in the
neighbourhood of the drillship during shorefast drilling
operations in the south Beaufort Sea. |
P7822 |
DAVIS STRAIT EXPLORATORY DRILLING EVALUATION
CLIENT: Department of Northern and Indian Affairs
DATE: 1978
DESCRIPTION: Risk analysis of oil spill and general accident
hazards associated with semi-submersible and dynamically
positioned drillship wildcat drilling operations in Davis
Strait, north of 62E. The work included quantification of
geological, environmental, hardware, and design and operator
error factors and their consolidation into an appropriate fault
tree analysis, modeled digitally. A software package generating
various risk levels associated with the proposed operations and
hard number means and bounds of accident probability predictions
was yielded. Objective of the work was partially to assess
Imperial Oil's drilling permit applications for the area in
question. |
P7820 |
BULK PLANT RISK OPTIMIZATION
CLIENT: Department of Fisheries and Environment
DATE: 1978
DESCRIPTION: Major risk investigation directed at assessing
accident potential associated with liquid hydrocarbon storage
and terminal facilities. Following in-depth investigation of
current status for two major bulk plants, one on the Atlantic
and one on the Pacific coast, the investigation involved a fault
tree analysis of accident probability, including spill,
personnel, and property hazards. Subsequently, different
accident prevention measures, including maintenance programs,
new safety devices, alternate operating procedures, and better
trained staff were incorporated into the networks and
subsequently analyzed by super-imposition of an optimization
procedure in order to define an optimal accident prevention
level. Constraints included costs of loss of product, personnel
injury or death, property damage, pollution, fines or penalties,
and direct and implicit costs of accident prevention measures. |
1977 |
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P7717 |
ARCTIC ICE
CONTROL STRUCTURES SMALL-SCALE PROTOTYPE DESIGN AND SUPERVISION
CLIENT: Canadian Marine Drilling Ltd. DATE: 1977
DESCRIPTION: Certain structural components associated with the
small-scale prototype testing of ice control devices to be used
in drillships were designed and integrated into an experimental
program utilizing a 100 ft. long supply vessel in the Arctic
Ocean. Work included design and supervision of portions of the
experiment as well as specialist consulting on thermodynamic and
ice mechanics aspects of the problems. |
P7715 |
ARCTIC
SINGLE-POINT MOORING (SPM) SYSTEM
CLIENT: Dome Petroleum Limited DATE: 1977
DESCRIPTION: The work entailed the preliminary engineering,
logistics, and cost estimates for an offshore Arctic
single-point mooring system capable of operating at a water
depth of 200 feet. An optimal steel structural form was
developed and designed. The system had build into it integrally
a quick disconnect capability and integrated ballasting
facilities to permit mobility in the case of threat of ice
islands. |
P7712 |
ARCTIC
OFFSHORE LNG TERMINAL
CLIENT: Dome Petroleum Limited DATE: 1977 - 1978
DESCRIPTION: Utilization of a steel caisson contained artificial
island for the purpose of an LNG plant and storage terminal was
investigated. The work involved a preliminary design, logistics,
and cost estimates for the construction of the primary island
and transfer of a complex LNG barge facility from the ocean
surface to a secure location within the island. |
P7710 |
ARCTIC
MARINE TERMINAL MODULATION
CLIENT: Dome Petroleum Limited DATE: 1977
DESCRIPTION: Schedule and cost estimates associated with a
feasible modularized construction procedure for Arctic marine
terminals suitable for the 50 - 200 foot water depth were
generated. A constant storage capacity of 3,000,000 barrels was
prescribed. Modifications to previous preliminary designs to
facilitate modularization of the ring and tank wall were carried
out. The construction procedure evolved about fabrication of the
modules in the south, barging of these modules to a sheltered
Arctic assembly facility where they would be joined into the
ring and tank walls, and a short tow to and installation at the
ultimate site. |
P7709 |
ICE-SHIP
INTERACTIONS EXPERIMENT DESIGN AND MANAGEMENT
CLIENT: Canadian Marine Drilling Ltd. DATE: 1977
DESCRIPTION: An analytical and field investigation directed at
developing a better understanding of the interaction between a
moored ship and stable ice cover was carried out. The analytical
work entailed development of a mooring line response simulator,
ice-ship interaction theory, and incorporation of the analysis
into a computer program which generates mooring line tensions
and ship motions for given impinging ice conditions. Numerical
sensitivity studies of different eight-point mooring system
configurations minimize ice tensions for all probable ice
encounter directions. Field corroboration, utilizing a
full-scale operating situation for certain parts of the analyses
was carried out. Project activities included specialist
consulting, experiment design and production of an experimental
manual, procurement of equipment, experimental management and
supervision, analysis of results, and production of a final
report. |
P7707 |
ARCTIC
MARINE TERMINAL (150 - 200 FT. WATER DEPTH) PRELIMINARY DESIGN
AND LOGISTICS
CLIENT: Dome Petroleum Limited DATE: 1977
DESCRIPTION: A preliminary design and order-of-magnitude
estimate of costs and schedule for a structural ring-enclosed
island type oil storage and marine terminal for 150 and 200 ft.
water depths in the Beaufort Sea. A variable storage
requirement, from 0 to 3,000,000 barrels of crude oil, was
investigated. The terminal can accommodate two million barrel
capacity tankers with beams of 170 feet and drafts up to 90
feet. The analysis of the ice-soil-structure interaction carried
out for PE7705 above was utilized. Novel forms were necessary in
order to counteract the large moments and localized forces
imposed upon the terminal structure by prevailing Arctic ice
conditions. Conceptual design, cost estimating, and construction
logistic aspects of the investigation were carried out in
conjunction with appropriately qualified contractors. |
P7706 |
UNDERWATER
OIL CONTAINMENT VESSEL ANALYSIS INTEGRITY STRESS ANALYSIS
CLIENT: Canadian Marine Drilling Ltd. DATE: 1977
DESCRIPTION: A design for large membrane vessel for containing
oil blowout discharges was reviewed and analyzed for the
deployment and in-service modes. Work involved the development
and solution of submerged inflated membrane equations coupled
with the effects of submerged drained sand masses. Practical
design considerations were incorporated. |
P7705 |
ARCTIC
MARINE TERMINAL (50 - 90 FT. WATER DEPTH) PRELIMINARY DESIGN AND
LOGISTICS
CLIENT: Dome Petroleum Limited DATE: 1977
DESCRIPTION: A preliminary design and order-of-magnitude
estimate of costs and schedule for a structural ring-enclosed
island type oil storage and marine terminal for 60 and 90 ft.
water depths in the Beaufort Sea. The basic storage requirement
for the terminal is three million barrels of crude oil, however
sensitivity to different storage capabilities was investigated.
The terminal could accommodate two million barrel capacity
tankers with beams of 170 feet and drafts up to the full water
depth. One of the major problems addressed was the analysis of
the soil structure interaction necessary to predict the response
to loadings on the outside of the structure caused by various
Arctic ice conditions. Conceptual design, cost estimating, and
construction logistic aspects of the investigation were carried
out in conjunction with appropriately qualified contractors.
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P7702 |
DEVELOPMENT OF A COMPREHENSIVE THEORY FOR THE PREDICTION OF ICE
FORCES ON CYLINDRICAL AND CONICAL OFFSHORE STRUCTURES
CLIENT: Transportation Development Agency DATE: 1977
DESCRIPTION: The development of a comprehensive theory for
selecting design ice forces acting on cylindrical and conical
offshore structures is carried out utilizing deterministic,
semiprobabilistic, and probabilistic analytical techniques and
associated
computation methods. Flexural and crushing ice sheet failure
phenomena are fist described using extensions of customary
deterministic theories. Based on the deterministic equations, a
semi-probabilistic technique is utilized to investigate the
flexure-crushing transitional failure region for which it
provides a continuous bimodal transition function. Next, methods
of probabilistic design are used to generate a set of
probabilistic equations for describing the crushing and flexural
interactions. These equations yield values of the mean force and
the associated standard deviation, which permits the
specification of a unique load spectrum. The probability of an
ice load of any given magnitude can easily be obtained from the
load spectra. Numerical results include tabulation of loads for
both analytically and practically significant ranges of
increments of all main interaction variables for all levels and
types of analytical methods mentioned above. Salient cases of
the tabulations are described and illustrated graphically and
applications to current design practices are suggested. |
1976 |
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P7619 |
STUDY OF
SCALE EFFECTS OF ICE SHEET FAILURE AGAINST CONICAL OFFSHORE
STRUCTURES
CLIENT: Ministry of Transport DATE: 1976
DESCRIPTION: Non-dimensionalization of the flexural ice failure
equations. Parametric computer tabulation and graphics to
identify trends in the force variables associated with changes
in the scale of the interactions as measured by the aspect
ratio. Results applicable to design of lighthouse and bridge
piers in inland waters. |
P7614
.01 |
FEASIBILITY OF USING DRILLSHIP WASTE HEAT FOR MAINTENANCE OF
ICE-FREE AREA AROUND DRILLSHIP
CLIENT: Canadian Marine Drilling Ltd. DATE: 1976
DESCRIPTION: One of the conditions necessary to keep a drillship
on location in shorefast ice is the prevention of ice formation
and impingement in the immediate neighbourhood of the ship.
Methods of keeping the ice from forming by utilizing drillship
engine exhaust heat were identified and reviewed. Following
thermodynamic calculations to ascertain that sufficient heat may
be available, several specific schemes for getting the exhaust
heat to prevent ice formation were reviewed and evaluated. One
of the schemes was selected and preliminary design and cost
estimates were carried out. A small-scale prototype test program
was developed. |
P7614
.02
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FEASIBILITY STUDY - METHODS FOR MAINTAINING ICE-FREE AREA AROUND
DRILLSHIP
CLIENT: Canadian Marine Drilling Ltd. DATE: 1976
DESCRIPTION: A feasibility study of methods of maintaining a
100-foot wide ice-free area around a drillship on location in
the South Beaufort Sea was carried out. The methods considered
included ones entailing use of structural systems, energy
injection systems, and active systems. Among the structural
systems considered were the following:
(a) Floating structural canopy
(b) Air cushion vehicle support canopy
(c) Air-supported canopy
(d) Air-inflated canopy
(e) Structural, air-inflated, or air-supported dome
(f) Flexible folding insulation
Each of the systems had to have the capability of preventing
freezing in a 100 foot wide area around the drillship as well as
accommodating peripheral ice movements of up to 80 feet in that
area. |
P7610 |
ENGINEERING PROPERTIES OF ICE IN THE BEAUFORT SEA
CLIENT: Dome Petroleum Limited DATE: 1976
DESCRIPTION: The work comprises review, documentation,
compilation, and recommendations for the properties of ice in
the south Beaufort Sea relevant to ice-structure interaction.
Shapes, velocities, strengths, and surface characteristics of
the pertinent ice types and formations for various seasonal and
geographical zones constitute the major results presented from
interpretation and analysis of existing remote sensing
information. Geometric and kinematic properties are cast into
probabilistic form to optimize use of the relative sparsity of
relevant empirical data. Strength and other material properties
are presented in mean and maximum ranges to permit realistic use
by the designer. The work represents up-to-date compilation of
engineering and scientific knowledge of ice properties for the
south Beaufort Sea which should augment both the general
understanding and state of design readiness of the user relative
to offshore oil and gas facilities in the area. A small part of
the study area is shown in Figure 1.
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Figure 1: A Section of the Study Area
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thumbnail to
enlarge
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P7602
.01 |
ICE
MECHANICS RESEARCH AND DEVELOPMENT ICE FORCES ON CONICAL
OFFSHORE STRUCTURES
CLIENT: Ministry of Transport DATE: 1976
DESCRIPTION: Extension of work in P7501 to incorporate
alternate failure modes. Computer regeneration of all tables and
graphs in metric units. |
1975 |
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P7501 |
PARAMETRIC
INVESTIGATION - ICE FORCES ON A CONICAL OFFSHORE STRUCTURE
CLIENT: The Ministry of Transport DATE: 1975
DESCRIPTION: An analytical investigation of the variation in
force on a conical offshore structure such as a lighthouse, for
a
variation of system parameters through a wide range. Parameters
varied, including pertinent mechanical ice properties, interface
properties, and structure variables. Following the modification
of flexural ice sheet failure theory developed by F.G. Bercha
earlier, the investigation was carried out with the aid of a
digital computer. Over eighty thousand force calculations for
approximately forty thousand combinations of the variables were
executed. The results were presented in a set of 264 tables and
32 graphs of 8 curves each. Graphics were all performed using
the CDC 6400 Computer and CalComp 563 drum plotters. |
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