油井套管外壁阴极保护技术概述  

Application of Cathodic Protection for External Surfaces of Steel Well Casings

作　　者：丁继峰[1] 高志贤[1] 

机构地区：[1]钢铁研究总院青岛海洋腐蚀研究所,山东青岛266071

出　　处：《全面腐蚀控制》2013年第9期34-36,76,共4页Total Corrosion Control

摘　　要：简述了阴极保护技术在油井套管外壁防腐蚀中的研究和应用情况,比较了外加电流法和牺牲阳极法的特点和不同的应用条件,并简述套管阴极保护效果的评估方法。阴极保护技术的应用对油井套管外壁腐蚀起到有效地抑制作用,大大延长了油井套管的寿命。This paper introduces the research and application of cathodic protection technology for external surfaces of steel well casings, compares the characteristics and different application conditions of the impressed current method and sacrificial anode method ,and summarizes the evaluating effectiveness methods of cathodic protection. The CP technology plays an effective inhibitory effect to well casings corrosion,extends the service life of oil well casing greatly.

关 键 词：油井套管 阴极保护 外壁 

分 类 号：TG174.41[金属学及工艺—金属表面处理]