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西部地区输油气管线外防腐层失效原因分析

Cause Analysis on Anti-corrosive Coating Failure of Oil and Gas Pipeline in the Western Region
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摘要 西部地区输油气管线外防腐层失效,引发管体表面及焊缝处发生锈蚀,管道存在腐蚀风险。本文针对在役管道运行过程中使用的环氧粉末涂层和石油沥青玻璃布防腐层,结合现场工况室内试验,分析了防腐层失效原因,并提出改进建议。 The failure of the anti-corrosion layer outside the oil and gas pipeline in western China will lead to corrosion on the surface of the pipe body and the weld joints,and the pipeline is at risk of corrosion.In this paper,the failure reasons of epoxy powder coating and anti-corrosion layer of petroleum asphalt glass cloth used in service pipeline operation are analyzed,and the improvement suggestions are put forward.
作者 郭继银 马啸强 周冰 赵玉飞 张盈盈 GUO Ji-yin;MA Xiao-qiang;ZHOU Bing;ZHAO Yu-fei;ZHANG Ying-ying(CNPC Engineering Technology Research Co., Ltd. Tianjin 300451, China;Petrochina West Pipeline Company, Dushanzi 838600, China)
出处 《全面腐蚀控制》 2018年第12期90-92,107,共4页 Total Corrosion Control
关键词 输油气管线 外防腐层 腐蚀失效 oil and gas pipeline anti-corrosive coating corrosion failure
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