The integrity evaluation of the corroded pipelines has long been, and continues to be, a concern for the industry. Besides with the advancing age of the pipeline infrastructure and the competitive marketplace, cost effective maintenance and rehabilitation is increasingly important. This paper considers essential theoretical or statistical concepts and data requirements for engineering structural assessment suitable for estimate the present and future integrity of corroded pipelines. For purpose of this study the DNV RP F101 code has been used to evaluate the pipeline condition by calculating the remaining allowable operating pressure. An important outcome is the good quality estimation of the longer-term probability of loss of pipeline integrity subjected to the longer-term corrosion behaviour.
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