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Displaying records 136 through 136 of 2180
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Title: A systematic risk and reliability-based approach to integrity management of piggable and non-piggable pipelines
Category: Technical papers from the Journal of Pipeline Integrity
Downloadable: Yes 
Catalog No.: 2010
Date of Publication: jan 2002
Price: $25.00 US
Authors: Andrew Francis,
Abstract: Pipeline designers and operators generally acknowledge that complex combinations of failure mitigating measures are needed to ensure safe operation of onshore high-pressure pipelines. Such measures include hydrostatic testing, in-line inspection, close-interval surveys (CIS), direct-current voltage gradient (DCVG measurements, and Pearson surveys. However, the relative contribution of each activity to the overall structural reliability is generally unknown. Basically, each activity is routinely undertaken in the belief that it is necessary and makes some contribution to the integrity, but the actual worth of the activity is not known. This paper describes techniques based on structural-reliability analysis and probability theory for rigorously quantifying the effects of these activities, and it is shown by analysis and simple case studies how the approach can be used to optimize in-line inspection scheduling.
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