海管防腐层高温阴极剥离影响因素研究  

Research on factors of high-temperature cathodic disbondment of anti-corrosion coating of subsea pipeline

作　　者：李长春[1] 张晓灵[1] 李明月[2] 杨加栋[1] 张群正[3] 赵利[1] Li Changchun;Zhang Xiaoling;Li Mingyue;Yang Jiadong;Zhang Qunzheng;Zhao Li(CNOOC Energy Technology & Services-Pipe Engineering Co. Tianjin,300452)

机构地区：[1]中海油能源发展股份有限公司管道工程分公司,天津300452 [2]中国海洋石油总公司节能减排监测中心,天津300452 [3]西安石油大学化学化工学院,陕西西安710065

出　　处：《石化技术》2017年第4期27-27,30,共2页Petrochemical Industry Technology

摘　　要：深水高温油气田开发对海管防腐层提出了更高的要求,阴极剥离是防腐层失效的最主要表现形式。本文介绍了阴极剥离的作用机理,重点阐述了海管防腐层高温阴极剥离的影响因素-次氯酸盐、表面预处理、温度、涂层缺陷等,建议从管道涂层的涂敷预制和长期服役两个阶段综合分析阴极剥离的影响因素,尽快建立高温阴极剥离的专业标准。Deep water high temperature oil&gas development requires anti-corrosion coating of pipeline to have a better performance.Cathodic disbondment is the major failure mode of anticorrosion coating.In this article,the mechanism of cathodic disbondmentwas introduced.Factors influencing High-Temperature Cathodic Disbondment of anticorrosion coating of subsea pipeline were discussed with emphasis,which were hypochlorite,surface preparation,temperature,coating defects,etc.It is recommended that comprehensive analysis on factors influencing High-Temperature Cathodic Disbondment shall be made on the stages of piping prefabrication and long-term service,to establish professional standard of high temperature cathodic disbondment as soon as possible.

关 键 词：海底管道 高温 阴极剥离 影响因素 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]