乐东气田海管动电位扫描腐蚀特性研究  

Study on potentiodynamic scanning corrosive property of Ledong subsea pipeline

作　　者：白玉萍 付春丽 

机构地区：[1]中油管道建设工程有限公司 [2]中国石油集团海洋工程有限公司,山东青岛266555

出　　处：《内蒙古石油化工》2013年第14期4-6,共3页Inner Mongolia Petrochemical Industry

摘　　要：针对乐东气田海管投产过程中可能引起的管内腐蚀问题,采用了M-273电化学测试仪对乐东海管采用的X65钢进行动电位扫描腐蚀特性研究。结果表明,"陆上终端干空气排水、全线氮气惰化"方案腐蚀量小、不会发生点蚀、省掉干燥环节工期短、不存在污染的优点,为最佳的投产方案。此研究方法对于优化海底管线的投产具有重要的指导意义。Potentiodynamic scanning corrosive property research was performed,of X65steel used by Ledong subsea pipeline with M-273electrochemical measurement instrument,in the light of possible internal corrosion during commissioning of the subsea pipeline of Ledong gas field.The results showed that ＂dry air draining at the onshore terminal and all nitrogen displacement＂scheme had advantages of light corrosion,no pitting corrosion,short project time because of saving drying segment,no pollution,so it was the best scheme.The research mehtod is very instructive for optimizing the commissioning of subsea pipelines.

关 键 词：海管 动电位扫描 腐蚀 投产 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]