16MnR系列材料在油田H_2S-CO_2-Cl^-环境下的耐蚀性  

Corrosion Resistance of 16MnR Serial Materials in Oil Field Environment with H_2S-CO_2-Cl^-

作　　者：郭志军[1] 周建军[1] 陶小娟[1] 王克栋[1] 谢申[1] 

机构地区：[1]兰州石油机械研究所,兰州730050

出　　处：《腐蚀与防护》2010年第11期863-867,共5页Corrosion & Protection

摘　　要：通过应力腐蚀试验及全面腐蚀试验,系统地研究了16MnR系列压力容器用钢在油气田高含H2S-CO2-Cl-环境下的抗腐蚀性能,分析了16MnR系列钢在这种工况条件下作为压力容器用材的适用性。结果表明,16MnR(HIC)母材和焊接接头满足抗硫化物应力开裂(SSC)的基本要求,可以在pH值6以上、50℃以下的介质中任意H2S、CO2和Cl-含量下安全使用,其他16MnR材料对硫化物应力开裂(SSC)和氢诱导开裂(HIC)较敏感。在选材时还应在实际模拟工况条件下进行全浸腐蚀试验,以确定其腐蚀速率。The corrosion characteristics and applicability of 16MnR series materials used to make pressure vessel in oil field environment with high concentration of H2S-CO2-Cl-were studied by means of stress corrosion test and general corrosion test.The results showed that 16MnR（HIC） and welded joint could resist the H2S stress corrosion under the condition of pH 6 and temperature 50 ℃,and other 16MnR materials were sensitive to SSC（sulfide stress cracking） and HIC（hydrogen induced cracking）.Immersion test should be carried out in the environment of simulating practical working condition for material selection.

关 键 词：16MnR 压力容器 H2S-CO2-Cl-腐蚀 选材 

分 类 号：TG172[金属学及工艺—金属表面处理]