深井阳极地床位置对埋地管线的影响及解决措施  

Influence of deep-well anode position onburied pipeline and corresponding solutions

作　　者：孙佳妮 SUN Jiani(Oil and Gas Transportation Department of SINOPEC Northwest Oil Field Company,Luntai 841600,China)

机构地区：[1]中石化西北油田分公司油气运销部,新疆轮台841600

出　　处：《石油化工腐蚀与防护》2023年第2期30-34,43,共6页Corrosion & Protection In Petrochemical Industry

摘　　要：随着国内油气田的不断开采,长输管线阳极地床的选址空间不断缩小,管线间直流干扰问题日益突出。为减少深井阳极地床对周围埋地管线的干扰影响,既要弄清楚深井阳极地床造成干扰的各项因素,又要考虑在均匀及非均匀土壤环境中的阴极保护电位的分布规律,因此采用数值模拟的方式预测深井阳极地床的合理位置。针对深井阳极地床对埋地管线的影响,通过采取排流、跨接等方式来缓解阳极极化带来的问题。With the continuous exploitation of domestic oil and gas fields,the space of site selection for anode ground bed of long-distance pipeline is shrinking,and the problem of DC interference between pipelines is becoming increasingly serious.In order to reduce the interference of deep-well anode bed on the surrounding buried pipelines,influence factors were understood first,and then the distribution law of cathodic protection potential in uniform and non-uniform soil environment was used to predict the reasonable position of deep-well anode bed by numerical simulation.Finally,drainage and bridging were recommended to alleviate the effects of anode polarization.

关 键 词：阳极 阳极极化 埋地管线 干扰 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]