Magnetic flux leakage (MFL) intelligent pigs are the most common tools used for pipeline inspection. But, the MFL inspection results are subject to various sources of uncertainties which must be quantified and accounted for in the integrity assessment of the inspected pipeline. A series of pull-through tests (PTT) of seven MFL tools from four service providers was performed on a 12-inch diameter pipe containing preexisting internal corrosion defects of various length, width, and depth, and located in a variety of circumferential and longitudinal positions. The results of these tests are used to quantify the detectability statistics and the sizing uncertainties of the different tools for future use in developing calibrated probabilistic models for reliability based inspection, quantitative risk assessment and life extension studies for pipelines.
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ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
July 1–6, 2012
Rio de Janeiro, Brazil
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4493-9
PROCEEDINGS PAPER
Characterization of the Accuracy of the MFL Pipeline Inspection Tools
Mamdouh M. Salama,
Mamdouh M. Salama
ConocoPhillips Co., Houston, TX
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Bruce J. Nestleroth,
Bruce J. Nestleroth
Battelle, Columbus, OH
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Marc A. Maes,
Marc A. Maes
Blade Energy Partners, Calgary, AB, Canada
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Carlos Rodriguez,
Carlos Rodriguez
ConocoPhillips Co., Houston, TX
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Dave Blumer
Dave Blumer
ConocoPhillips Co., Bartlesville, OK
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Mamdouh M. Salama
ConocoPhillips Co., Houston, TX
Bruce J. Nestleroth
Battelle, Columbus, OH
Marc A. Maes
Blade Energy Partners, Calgary, AB, Canada
Carlos Rodriguez
ConocoPhillips Co., Houston, TX
Dave Blumer
ConocoPhillips Co., Bartlesville, OK
Paper No:
OMAE2012-83934, pp. 247-251; 5 pages
Published Online:
August 23, 2013
Citation
Salama, MM, Nestleroth, BJ, Maes, MA, Rodriguez, C, & Blumer, D. "Characterization of the Accuracy of the MFL Pipeline Inspection Tools." Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. Volume 6: Materials Technology; Polar and Arctic Sciences and Technology; Petroleum Technology Symposium. Rio de Janeiro, Brazil. July 1–6, 2012. pp. 247-251. ASME. https://doi.org/10.1115/OMAE2012-83934
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