Applications of Relative Calibration of Crack and Corrosion ILI Data

March 2017, Vol. 244, No. 3

By Mona Abdolrazaghi, Sherif Hassanien, and Janine Woo, Enbridge Liquid Pipelines Inc., Edmonton, AB, Canada

Inline Inspection (ILI) tools are periodically employed for pipeline inspections using two types of technologies: magnetic flux leakage (MFL) and ultrasonic testing (UT). These tools assist in detecting, sizing, and locating corrosion, crack, and deformation features. The evaluation of ILI performance is usually based on trending field measurements and ILI data (unity plot). Enbridge, as an industry leader in applying innovative processes and technologies in pipeline threat management, has conducted work on developing methodologies to improve the uncertainty quantification of tools’ measurement. This work brings an opportunity for pipeline operators and ILI vendors to include…

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