Current situation and prospect of submarine pipeline integrity evaluation in China

As the service condition is harsh, the submarine pipeline is hard to be monitored and maintained. Therefore, oncean accident occurs, the consequence will be very serious. In order to ensure the safe operation of submarine pipelines, thedomestic and international research progress of submarine pipeline integrity evaluation technology was discussed from theaspects of the overall construction of the submarine pipelines, various safety evaluation systems and integrity standardsthrough the study on current situation of submarine pipeline integrity evaluation. At the same time, considering the serviceconditions and operation characteristics of submarine pipeline in China, the study route and development trend was definedbased on a series of problems such as the unsound submarine pipeline management mode, weak integrity evaluation technologyand inadequate standards in China, to realize the evaluation and analysis of various failure modes and the integrity evaluation ofthe submarine pipeline as soon as possible, and to establish an integrity evaluation system of submarine pipeline. The researchresults could provide references for the safe and reliable operation of the submarine pipelines and have a guiding effect on thedevelopment of submarine pipeline integrity evaluation in China.