油气长输管道腐蚀检测评估技术研究与应用  

Research and Application of Corrosion Detection and Evaluation Techniques for Long-distance Oil and Gas Pipelines

作　　者：龙媛媛[1] 王遂平[1] 刘瑾[1] 石仁委[1] 柳言国[1] 

机构地区：[1]胜利油田技术检测中心腐蚀与防护研究所,山东东营257000

出　　处：《石油工程建设》2011年第6期27-30,89,共4页Petroleum Engineering Construction

摘　　要：油气长输管道腐蚀检测评估已成为确保原油安全输送的关键技术。文章对管道可能存在的腐蚀失效形式进行了剖析,提出了一套综合利用坐标测绘、双频电流衰减法、直流电位梯度法、密间隔管地电位测试法、杂散电流检测法、瞬变电磁法对油气长输管道进行检测评估的方法和利用Honeywell Predict Pipe 3.0软件对输气管道进行内腐蚀评估的方法。文章结合工程实例说明了该技术的应用,并指出利用该技术可在非开挖不停输的前提下,实现对油气长输管道腐蚀与防护状况的完整评价。The corrosion detection and evaluation for long-distance oil and gas pipelines has been a key technique to ensure crude oil transportation safety.This paper analyzes possible pipeline failure modes induced by corrosion and provides a set of corrosion detection and evaluation methods for long-distance pipelines which comprehensively utilizes coordinate mapping,dual-frequency pipeline current map(PCM),direct current voltage gradient(DCVG),close interval potential supervision(CIPS),stray current method(SC) and transient electromagnetic method(TEM),as well as applies software Honeywell Predict Pipe 3.0 to evaluate internal corrosion of long-distance pipelines.Some engineering application examples are given.The results show that corrosion and protection status of long-distance oil and gas pipelines under the conditions of trenchless and continuing transportation operation can be integratively evaluated by using the technology.

关 键 词：油气长输管道 腐蚀失效形式 非开挖外检测 内腐蚀评估 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]