X65管线钢在微量H_2S环境中的腐蚀行为试验研究  

Study on Trace H_2S Corrosion Behavior of X65 Pipeline Steel

作　　者：胡徐彦 张炜强 蒋满军 薛艳[2] 

机构地区：[1]中海石油(中国)有限公司湛江分公司,广东湛江524057 [2]西安摩尔石油工程实验室有限公司,西安710065

出　　处：《石油矿场机械》2013年第9期64-68,共5页Oil Field Equipment

基　　金：国家自然科学基金资助项目(51074126)

摘　　要：为解决部分油田在设计之初未考虑H2S腐蚀的问题,分析了微量H2S在目前和未来工况下对X65管线钢的腐蚀规律,检测H2S应力腐蚀开裂(SSC)及氢致开裂(HIC)倾向,并对常用缓蚀剂进行评价。结果表明:在模拟环境下,试样均匀腐蚀速率随H2S质量浓度的下降和含水率的升高而增大,未发现SSC和HIC裂纹。通过评价HYH-114型缓蚀剂满足使用要求,其质量浓度为50mg/L时缓蚀率达到86.46%。A bunch of tests were carried out on the purpose of solving problems like hydrogen sulfide corrosion which was not considered at the beginning of designing,exploring trace H2 S corrosion behavior on X65 pipeline steel in the present and future operational condition,detecting the tendency of sulfide stress cracking （SSC） and hydrogen-induced cracking （HIC）,and also evaluating the common corrosion inhibitors.The results shows that：in a simulated environment,the uniform corrosion rate increases while the H2S concentration declines and moisture content raises;SSC and HIC cracks were not found;Type HYH-114 corrosion inhibitor meets the requirements,while the inhibition rate reaches a maximum value of 86.46％ at the concentrations of 50 mg/L.

关 键 词：X65管线钢 微量H2S腐蚀 SSC HIC 缓蚀剂 

分 类 号：TE985[石油与天然气工程—石油机械设备]