深井阳极地床设计和施工中的关键问题  

Key Issues in the Design and Installation of Deep Anode Beds

作　　者：李循迹[1] 赵密锋 周理志 常泽亮 陈博 

机构地区：[1]中国石油塔里木油田公司,库尔勒841000 [2]中国石油塔里木油田油气工程研究院,库尔勒841000 [3]沈阳中科环境工程科技开发有限公司,沈阳110016

出　　处：《腐蚀与防护》2016年第10期852-854,864,共4页Corrosion & Protection

摘　　要：用不等距法测某场站深井阳极地床处土壤电阻率沿垂直方向的分布,探讨了比较经济的阳极井深度,提出了在深井阳极地床安装过程中需要严格控制的关键环节。结果表明:土壤电阻率随地层深度的增大呈先减小后增大的趋势,比较经济的井深为40m;严格控制深井阳极地床施工中的关键环节,深井阳极地床的施工质量和阴极保护效果才能得到可靠保证。The distribution of soil resistivity along vertical direction near a deep anode bed in some field was measured using un-equidistance method.The most economical well depth was analyzed based on those data.Some key issues that should be strictly followed during the installation of deep anode beds were also proposed.The results show that the soil resistivity had a tendency of decrease followed by increase when the strata depth increased,and the most economical well depth was 40 m.Anode bed installation quality and cathodic protection（CP）effectiveness can be achieved only when all these key issues are strictly followed during the installation of deep anode beds.

关 键 词：深井阳极地床 不等距法 土壤电阻率 接地电阻 通电电位 

分 类 号：TG174.41[金属学及工艺—金属表面处理]