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Displaying records 20 through 20 of 2180
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Title: 2447sAnalysis of ILI vendor performance on Enable Midstream’s pipeline system
Category: Technical papers from the Journal of Pipeline Engineering
Downloadable: Yes 
Catalog No.: 2447s
Date of Publication: 2018-12-01
Price: $25.00 US
Authors: Joel Anderson
Abstract: THE RESULTS FROM OVER 1200 anomalies were collected from post-assessment reports that were completed over an eight-year period from 2010 to 2017. This analysis creates a qualitative and quantitative comparison of seven different ILI vendor relative to the published tolerance and between different vendors. The overall performance is not biased to under or overcalling anomalies, however some bias is observed at the vendor specific level. In addition, there is much more variance to the data than is claimed by published accuracy levels. The oft-quoted specification is that the metal loss anomalies will be within 10% of the actual depth is 80% of the time. The observed performance in this analysis is approximately 70%.
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