PR-244-163728-R01 In-Line Inspection Crack Tool Performance Evaluation Phase II

After recent high profile pipeline incidents in the United States, the National Transportation Safety Board (NTSB) issued recommendations to review ILI technologies with respect to tool tolerance, probability of detection and probability of identi?cation, and to provide a model with detailed procedures for evaluating the e?ect of interacting corrosion and crack threats. Phase I of the PRCI project NDE-4E was initiated in 2013 to address the ?rst of these recommendations to the extent possible by mining existing historical operator data. The main goal of the project was to create a database of crack ILI and excavation information collected from operatorsandtouseittocharacterizetheperformanceofavailableILItechnologies. The database was created and populated in Phase I of the NDE 4-E project, completed in July of 2015. The purpose of Phase II is to collect additional data and update the database and statistical analysis with an emphasis on collecting crack features measured by Electromagnetic Acoustic Transducer(EMAT)ILI tools and interacting crack in corrosion features measured by ultrasonic (UT) ILI tools