油套管CO_(2)腐蚀和防护研究进展  

Research Progress on CO_(2) Corrosion and Protective Countermeasures for Oil Casing

作　　者：杨涛 许磊 王建春 张明程 姚彦博 高国刚 许文忠 历长云 YANG Tao;XU Lei;WANG Jianchun;ZHANG Mingcheng;YAO Yanbo;GAO Guogang;XU Wenzhong;LI Changyun(Faculty of Engineering,China University of Petroleum-Beijing at Karamay,Karamay 834000,China;Xinjiang Defeng Yisheng Oil Anticorrosion Engineering Co.,Ltd.,Karamay 834000,China)

机构地区：[1]中国石油大学(北京)克拉玛依校区工学院,克拉玛依834000 [2]新疆德丰亿升石油防腐工程有限公司,克拉玛依834000

出　　处：《中国腐蚀与防护学报》2024年第5期1134-1144,共11页Journal of Chinese Society For Corrosion and Protection

基　　金：克拉玛依市科技计划资助项目(20232023hjcxrc0008);2023年自治区研究生创新项目(XJ2023G281)。

摘　　要：随着CO_(2)驱油技术在油田的推广应用,CO_(2)腐蚀控制是一个亟待解决的问题。CO_(2)腐蚀容易造成油套管的破坏和失效,研究其腐蚀机制和防腐措施具有重要的经济价值和科学意义。本文介绍了CO_(2)腐蚀机理,分析了温度、介质流速、pH等因素对CO_(2)腐蚀速率的影响规律;综合考虑油田开采的实际工况,并结合CO_(2)腐蚀的影响因素综述了耐腐蚀材料、缓蚀剂、金属镀层等措施的防腐机理与研究进展,讨论了这些措施在实际油田开采应用中的优缺点;众多措施中,非晶态合金镀层可以形成一层耐蚀性能优异的表面钝化膜,有效隔绝腐蚀介质对管道基体的腐蚀,从而提高管道的使用寿命。总结分析可知,金属镀层防腐措施具有较好经济效益与应用前景,并对未来的金属镀层防腐技术研究进行展望。With the popularization and application of CO_(2) flooding technology in oilfields,the CO_(2) corrosion and corrosion-control becomes an urgent problem to be solved.CO_(2) corrosion can easily cause the damage and failure of oil casing,and it is of great economic value and scientific significance to study the relevant corrosion mechanism and anti-corrosion measures.In this paper,the CO_(2) corrosion mechanism is introduced,and the influence of temperature,medium flow rate,pH and other factors on the CO_(2) corrosion rate is analyzed.By taking the actual operation conditions of oilfield exploitation and the influencing factors of CO_(2) corrosion into consideration,the research progress of corrosion-resistant materials,corrosion inhibitors,metal plating and other measures are reviewed,and the advantages and disadvantages of these measures in the actual oilfield application are summarized.Among many measures,the amorphous alloy coating is prone to be passivated passivated in operating conditions of oilfields,which may act as an effectively barrier to protect the pipe steel substrate from corrosion attack by corrosive media,thereby enhance the service life of the pipeline.The result of comprehensive analysis shows that the anti-corrosion measures of metal coating have good economic benefits and application prospects,and the future research on anti-corrosion technology of metal coating is prospected.

关 键 词：CO_(2)腐蚀 油套管 防腐措施 金属镀层 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]