PIPELINE INSPECTION— Conclusion: Reliability-based method assesses corroding oil pipeline

This concluding article of two focuses on application of a reliability-based pipeline condition-assessment methodology to the assessment of an in-service corroded oil pipeline. Part 1, in last week's issue, proposed a probabilistic analysis framework capable of evaluating the current and future integrity of corroding pipelines.This methodology allows evaluation of the reliability of the pipeline by determining the probability of failure associated with the defects detected and sized by use of high resolution in-line inspection (ILI). Results of this analysis are compared with target reliability levels derived by risk analysis in order to produce operator decision models that reflect t...

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