Gas pipeline operators face significant challenges with respect to quantifying and managing SCC in gas pipelines. Following SCCDA excavations, SCC was found on one of TCPL’s gas pipelines. A combined approach was then introduced to manage SCC, which consists of comparison of two consecutive Elastic Wave Inspection Runs prioritization of excavations, refinement of ILI tool sizing performance, and remediation using a Fracture Mechanics based FAD (Failure Assessment Diagram) methodology. The overall process from the ILI inspections to crack growth comparison, as well as integrity assessment and rehabilitation has demonstrated the effectiveness of the approach for SCC integrity management. In this paper, the history of the subjected pipeline segment is described. The concept of the approach is presented. The process of applying the approach to manage the pipeline integrity is outlined with examples for demonstration. The potential of utilizing this approach and process to other pipelines and crack detection ILI tools in gas pipelines in terms of POI, sizing, and excavation is discussed.
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2008 7th International Pipeline Conference
September 29–October 3, 2008
Calgary, Alberta, Canada
Conference Sponsors:
- International Petroleum Technology Institute and the Pipeline Division
ISBN:
978-0-7918-4858-6
PROCEEDINGS PAPER
SCC Integrity Management for a Gas Pipeline Using a Combined Approach EW ILI, Calibration Excavation and FAD Analysis
Richard Kania,
Richard Kania
TransCanada Pipelines, Calgary, Alberta, Canada
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Clint Garth,
Clint Garth
GE Oil and Gas, Calgary, Alberta, Canada
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Ravi Krishnamurthy,
Ravi Krishnamurthy
Blade Energy Partners, Houston, TX
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Millan Sen,
Millan Sen
TransCanada Pipelines, Calgary, Alberta, Canada
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Stuart Fairbrother
Stuart Fairbrother
GE Oil and Gas, Cramlington, England, UK
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Ming Gao
Blade Energy Partners, Houston, TX
Richard Kania
TransCanada Pipelines, Calgary, Alberta, Canada
Clint Garth
GE Oil and Gas, Calgary, Alberta, Canada
Ravi Krishnamurthy
Blade Energy Partners, Houston, TX
Millan Sen
TransCanada Pipelines, Calgary, Alberta, Canada
Stuart Fairbrother
GE Oil and Gas, Cramlington, England, UK
Paper No:
IPC2008-64535, pp. 781-788; 8 pages
Published Online:
June 29, 2009
Citation
Gao, M, Kania, R, Garth, C, Krishnamurthy, R, Sen, M, & Fairbrother, S. "SCC Integrity Management for a Gas Pipeline Using a Combined Approach EW ILI, Calibration Excavation and FAD Analysis." Proceedings of the 2008 7th International Pipeline Conference. 2008 7th International Pipeline Conference, Volume 2. Calgary, Alberta, Canada. September 29–October 3, 2008. pp. 781-788. ASME. https://doi.org/10.1115/IPC2008-64535
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