海底管道牺牲阳极更换及腐蚀因子分析  

The Replacement Technique of the Subsea Pipeline Sacrificial Anode and the Analysis of the Corrosion Factor

作　　者：肖治国[1] 张敬安[1] 郑辉[1] 李成钢[1] 

机构地区：[1]中海油田服务股份有限公司物探事业部,天津300451

出　　处：《全面腐蚀控制》2012年第11期17-19,58,共4页Total Corrosion Control

摘　　要：海底管道作为海上的油气运输的生命线,必须对其做好腐蚀保护。牺牲阳极阴极保护是一种控制海底管道电化学腐蚀的有效保护方法,当其达到设计寿命后,必须对其进行更换。本文介绍了海底管道阳极更换技术,并分析了不同腐蚀因子也会对阳极的腐蚀产生影响。以期为海底管道的牺牲阳极腐蚀保护设计和更换提供参考。Subsea pipeline was the lifeline of the offshore oil ＆ gas transportation system. Antlcorroslon was critical for the subsea pipeline. Sacrificial anode protection was one of the most effective anticorrosion technologies for the subsea pipeline electrochemical corrosion. It should be replaced when it reached to the design life. The anode replacement technique of the subsea pipeline and the change in anode corrosion with corrosion factor in the sea-mud was discussed in this paper. It offered us a reference for replacement and design of the subsea pipeline sacrificial anode system.

关 键 词：海底管道牺牲阳极更换腐蚀因子 

分 类 号：TG174.41[金属学及工艺—金属表面处理]