某气田集输管线阴极保护检测与优化设计  

A Case Study of Cathodic Protection Detection and Optimization Design for a Gas Field Gathering Pipeline

作　　者：于淑珍[1] 刘明[1] 韩鹏刚 张振云[1] 陈科 侯世颖[2] YU Shu-zhen;LIU Ming;HAN Peng-gang;ZHANG Zhen-yun;CHEN Ke;HOU Shi-ying(Technology Research Institute,PetroChina Changqing Oilfield Company,Xi’an 710018,China;Beijing Safetech Pipeline Co.,Ltd.,Beijing 102209,China)

机构地区：[1]中国石油长庆油田分公司油气工艺研究院,陕西西安710018 [2]北京安科管道工程科技有限公司,北京102209

出　　处：《材料保护》2021年第7期146-149,154,共5页Materials Protection

摘　　要：多管线共用阳极阴极保护系统中,不同管线保护电位存在差异,长距离管线末端欠保护,提高电流输出可造成其他联合保护管线过保护。为了准确获取真实电位分布状况,对多管线联合保护阴极保护电位进行模拟计算,研究了不同阳极地床布置方式对各管线阴极保护电位的影响。结果表明:模拟计算结果与实际测量结果吻合性良好;新建阳极与其他阴极保护系统的管线及阳极之间距离越远,阴极保护系统间干扰越小,越有利于阴极保护电位的均匀分布。In the cathodic protection system with common anode for multiple pipelines,the protection potentials of different pipeline positions are different.Under-protection at the end of long-distance pipeline and increasing current output can cause overprotection of other joint protection pipelines.In order to accurately obtain the real potential distribution status,the cathodic protection potential of multiple pipeline joint protection was simulated,and the influence of different anode ground bed layout on the cathodic protection potential of each pipeline was studied.Results showed that the simulated calculation results were in good agreement with the actual measurement results.The farther the distance between new anode and other cathodic protection system pipelines and anode was,the smaller the interference between cathodic protection systems was,and the more favorable to the uniform distribution of cathodic protection potential.

关 键 词：阴极保护 集输管道 电位分布 数值模拟 

分 类 号：TM862[电气工程—高电压与绝缘技术]