March 2021, Vol. 248, No. 3

Features

Life Extension of Pipelines with Crack Defects Using Composite Repairs

By Troy Swankie, DNV, and Paul Hill, Team Industrial Services Inc.  Composite repairs are being used widely to restore the integrity of pipelines impaired by wall thinning arising from corrosion anomalies.   The international standards ASME PCC-2 Article 401 and ISO 24817 have been adopted to guide such applications and have facilitated the wide growth in acceptance of the approach. Industry test programs, such as those by PRCI at Stress Engineering Services, Inc. (SES) in the US, have provided further support for the technique.   As experience with composite repairs has grown, so has the understanding of their strengths and weaknesses.1 There is growing interest in using them to extend

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