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某高压气井13Cr油管柱泄漏和腐蚀原因分析 被引量:22

Leakage and Corrosion Cause Analyses of 13Cr Tubing String in High Pressure Gas Well
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摘要 某高压气井完井后,13Cr不锈钢特殊螺纹接头油管柱泄漏,套管压力升高,不得不进行修井作业。对该井取出的油管现场端和工厂端螺纹接头逐根检测,发现多根油管腐蚀和泄漏。抽样分析表明,油管力学性能符合工厂规定;该种13Cr油管材料在该井工况条件下不抗腐蚀,油管接头结构导致腐蚀集中,在油井酸化后接头已发生腐蚀,导致接触压力不足,油管接头部位比管体内壁腐蚀更为严重。
出处 《腐蚀与防护》 CAS 北大核心 2010年第11期902-904,共3页 Corrosion & Protection
关键词 气井 套管压力 13Cr油管 接头 泄漏 腐蚀 gas well casing pressure 13Cr tubing connection leakage corrosion
作者简介 联系人:吕拴录,lushl—tim@petrochina.com.cn
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