| 某输油管道腐蚀穿孔原因 |
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| 引用本文： | 吉楠,廖臻,朱辉,李丽锋.某输油管道腐蚀穿孔原因[J].理化检验(物理分册),2021,57(1):61-65. |
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| 作者姓名： | 吉楠 廖臻 朱辉 李丽锋 |
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| 作者单位： | 中国石油集团石油管工程技术研究院,石油管材及装备材料服役行为与结构安全国家重点实验室,西安710077;中国石油天然气股份有限公司新疆油田油气储运分公司,克拉玛依831100 |
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| 基金项目： | 国家重点研发计划(2017YFC0805804)。 |
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| 摘 要： | 某油田在巡线过程中发现输油管道有泄漏现象,通过宏观分析、化学成分分析、金相检验和腐蚀产物分析等方法,结合服役工况,对输油管道腐蚀穿孔的原因进行了分析。结果表明:环焊缝防腐补口的密封失效而导致的外层腐蚀是输油管道腐蚀穿孔的主要原因,同时土壤中的Cl-加速了腐蚀穿孔的发生。
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| 关 键 词： | 输油管道 泄漏 外层腐蚀 防腐补口 穿孔 |
Cause of Corrosion Perforation of an Oil Pipeline |
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| JI Nan,LIAO Zhen,ZHU Hui,LI Lifeng.Cause of Corrosion Perforation of an Oil Pipeline[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2021,57(1):61-65. |
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| Authors: | JI Nan LIAO Zhen ZHU Hui LI Lifeng |
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| Affiliation: | (State Key Laboratory for Service Behavior and Structure Safety of Petroleum Tubular Goods and Equipment Materials,CNPC Tubular Goods Research Institute,Xi'an 710077,China;Xinjiang Oil Gas Storage and Transportation Branch of CNPC,Petro China Company Limited,Karamay 831100,China) |
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| Abstract: | The leakage phenomenon was found in an oil pipeline during the process of line patrolling.The causes of corrosion perforation of an oil pipeline were analyzed by means of macroscopic analysis,chemical composition analysis,metallographic examination and corrosion product analysis,combined with service conditions.The results show that the outer layer corrosion caused by the sealing failure of the circumferential weld anticorrosion joint was the main reason for the corrosion perforation of the oil pipeline,and the Cl-in the soil accelerated the occurrence of corrosion perforation. |
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| Keywords: | oil pipeline leakage outer layer corrosion anticorrosion joint perforation |
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