埋地管道动静态直流杂散电流腐蚀及防护研究现状  

Research status of dynamic and static DC stray current corrosion and protection of buried pipelines

作　　者：黎少飞 陆涛 祁贵宏 LI Shaofei;LU Tao;QI Guihong(Yinchuan Oil and Gas Transmission Branch of Northwest Branch of National Oil and Gas Pipeline Network Group Co.,Ltd.,Yinchuan Ningxia 750001,China)

机构地区：[1]国家石油天然气管网集团有限公司西北分公司银川输油气分公司,宁夏银川750001

出　　处：《石油化工应用》2024年第7期22-29,共8页Petrochemical Industry Application

摘　　要：我国埋地油气金属管道正遭受着越来越多的动静态直流杂散电流干扰和腐蚀。为了准确对其干扰问题进行研究分析和防护评估,从动态和静态两方面介绍了直流杂散电流腐蚀机理、特点及影响因素,分析了直流高压输电系统和直流电力运输系统的动态直流杂散电流及阴极保护系统的静态直流杂散电流干扰腐蚀规律。对目前我国常用的动静态直流杂散电流检测方法和防护措施进行了介绍和总结,并列出了其优缺点和适用范围。最后,对动静态直流杂散电流干扰及防护的研究方向进行了展望。At present,the interference and corrosion of buried oil and gas metallic pipelines caused by dynamic and static direct current(DC)stray current are more and more serious in China.In order to accurately study the interference problems and evaluate their protection.The mechanism,characteristics and influencing factors of dynamic and static DC stray current corrosion were introduced.The corrosion laws of interference from high voltage DC transmission system,DC power transportation system and cathodic protection system were analyzed.The common detection methods and protection measures of dynamic and static DC stray current in China were introduced and summarized with their advantages,disadvantages and application scopes.The research directions of dynamic and static DC stray current interference and its protection were prospected.

关 键 词：动静态直流杂散电流 干扰腐蚀 防护 

分 类 号：TE980.42[石油与天然气工程—石油机械设备]