浅谈长输(油气)管道的阴极保护有效性检测性能影响的比对研究  

Comparison Study on Effect of Cathodic Protection Performance of Long Transmission(Oil and Gas) Pipeline

作　　者：张俊斌[1] ZHANG Jun-bin(Anhui Special Equipment Inspection Institute,Hefei 230051,China)

机构地区：[1]安徽省特种设备检测院,安徽合肥230051

出　　处：《全面腐蚀控制》2018年第9期61-67,共7页Total Corrosion Control

摘　　要：石油、天然气长输管道、城市燃气管道等其它埋地钢质管道的腐蚀与保护越来越引起人们的重视。阴极保护技术在管道防腐方面一直有着非常好的效果,而对于最直接反映不开挖检验管道防腐层破损的重要参数—管地电位,却一直受到很多因素的影响。本文就对阴极保护技术相关知识做扼要叙述,对管地电位测量存在的IR压降问题及相关的土壤电阻率影响规律做简要阐述,最后通过案例来发现实际工作中存在的问题,并提出几点认识,望对后来学者研究有所帮助。The corrosion and protection of other buried steel pipelines, such as oil, natural gaspipeline, urban gas pipeline and other buried steel pipelines, have attracted more and more attention.Cathodic protection technology has been very effective in pipeline corrosion prevention, and it has beeninfiuenced by many factors for the most important parameter-Tube Potential,, which directly refiects thedamage of anticorrosive coating for pipeline inspection. This article on the cathodic protection technologyrelated knowledge briefly, discussed the problems of IR drop tube ground potential measurement andrelated effects of soil resistivity, finally to find the problems in the practical work through the case, and putforward some suggestions, hope to help scholars later.

关 键 词：阴极保护技术 管地电位 IR压降 土壤电阻率 

分 类 号：TE986[石油与天然气工程—石油机械设备]