Failure Analysis of Pipe's Repaired Mouth and its Improvement Measures and Suggestions

Abstract:

With the increment of the oil-field extract strength and the pipeline infusion load, the pipeline damage had become more serious and the effective use of cycle got shorter. Pipeline damage mainly appeared pipeline corrosion. The pipeline corrosion mainly occured in the place of pipe's repaired mouth and mending of blemishes. In this paper, through failure analysis of the pipe's Heat Shrinkable Wraparound Sleeve (HHWS) repaired mouth, we found the failure modes and failure causes of the repaired mouth of the existing pipeline and new pipeline, and grasped the failure mechanism. Then, improvement measures and suggestions were proposed to prevent failure, ensure safety, improve quality of the pipe's repaired mouth, slow or prevent pipeline corrosion and extend pipeline life.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 3628-3635
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.3628
• Online since: January 2013
• Authors: Qin Li, Shuang Jing, Zhi Qiang Huang, Wei Bin Wang, Ming Bo Wang, Zhen Chen
• Keywords: Failure Analysis, Heat Shrinkable Wraparound Sleeve (HHWS), Repaired Mouth

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