Pipeline integrity operators often face the challenge of rendering critical decisions even when there is uncertainty in some portion of essential input data. The decision making process can be further complicated by multiple possible courses of integrity action, each of which may contain their own specific uncertainties. This paper presents a multi-attribute decision making process to assist integrity managers in prioritizing and selecting integrity activities necessary for maintaining the safety of their system The proposed approach tackles decisions/actions prioritization process of integrity solutions based on engineering analysis, logistical issues, and availability of the pipeline to deliver the intended capacity; all while maintaining an appropriate safety level. The complexity of some integrity decisions could be better represented through priority versus probability/reliability because there are elements whose contribution or influence is not probabilistic, but nevertheless are describable in terms of priorities. Hence, the proposed approach focuses on two types of uncertainties; uncertainty on available information, and uncertainty about the range of judgments used to express preferences of feasible integrity actions. Integrity actions can take different forms, including excavating a considerable amount of pipeline, applying point or discharge pressure restrictions, executing validation digs, increasing in line inspection frequency, running complimentary in-line inspection technologies, or some combination of these integrity actions. The complexity of optimizing integrity decision arises not only from uncertainties on information, but also from resource availability and feasibility of the various possible integrity actions.
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2014 10th International Pipeline Conference
September 29–October 3, 2014
Calgary, Alberta, Canada
Conference Sponsors:
- Pipeline Division
ISBN:
978-0-7918-4611-7
PROCEEDINGS PAPER
Towards Effective Pipeline Integrity Decision Making Under Uncertain Environment
Sherif Hassanien,
Sherif Hassanien
Enbridge Pipeline Inc., Edmonton, AB, Canada
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Ryan Sporns,
Ryan Sporns
Enbridge Pipeline Inc., Edmonton, AB, Canada
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Johana Gomez,
Johana Gomez
Enbridge Pipeline Inc., Edmonton, AB, Canada
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Jeff Liang
Jeff Liang
Enbridge Pipeline Inc., Edmonton, AB, Canada
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Sherif Hassanien
Enbridge Pipeline Inc., Edmonton, AB, Canada
Ryan Sporns
Enbridge Pipeline Inc., Edmonton, AB, Canada
Johana Gomez
Enbridge Pipeline Inc., Edmonton, AB, Canada
Jeff Liang
Enbridge Pipeline Inc., Edmonton, AB, Canada
Paper No:
IPC2014-33263, V002T06A008; 8 pages
Published Online:
December 9, 2014
Citation
Hassanien, S, Sporns, R, Gomez, J, & Liang, J. "Towards Effective Pipeline Integrity Decision Making Under Uncertain Environment." Proceedings of the 2014 10th International Pipeline Conference. Volume 2: Pipeline Integrity Management. Calgary, Alberta, Canada. September 29–October 3, 2014. V002T06A008. ASME. https://doi.org/10.1115/IPC2014-33263
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