摘要
在气体分压分别为20,0.1 MPa的CO_(2)/H_(2)S共存模拟油田地层水中,利用高温高压釜在不同温度(室温、100℃、180℃)下对S135钢和G105钢进行腐蚀试验,研究了温度对2种钢腐蚀行为的影响。结果表明:100℃下S135钢和G105钢的腐蚀速率最大,分别为0.8463 mm·a^(-1)和0.8500 mm·a^(-1),180℃下的腐蚀速率最小,分别为0.2291 mm·a^(-1)和0.2309 mm·a^(-1);100℃下钢表面腐蚀产物主要为FeCO3和FeS,此温度下CO_(2)为腐蚀主控因素,室温和180℃下的腐蚀产物主要为FeS,H_(2)S为腐蚀主控因素。
The corrosion tests of S135 steel and G105 steel were carried out by high temperature autoclaves at different temperatures(room temperature,100℃,180℃)in the simulated oil field formation water coexisted CO_(2)/H_(2)S gas with partial pressure of 20,0.1 MPa,respectively.The influence of temperature on the corrosion behavior of the two steels was studied.The results show that the corrosion rate of S135 steel and G105 steel was the biggest at 100℃,reaching 0.8463,0.8500 mm·a^(-1),respectively,while that at 180℃was the smallest of 0.2291,0.2309 mm·a^(-1),respectively.At 100℃,the corrosion products on the steel surface were mainly FeCO3 and FeS,and CO_(2)was the main controlling factor for corrosion.At the room temperature and 180℃,the corrosion products were mainly FeS,and H_(2)S was the main controlling factor for corrosion.
作者
高科超
尚锁贵
张智
高强勇
马金鑫
刘婉颖
GAO Kechao;SHANG Suogui;ZHANG Zhi;GAO Qiangyong;MA Jinxin;LIU Wanying(Exploration Department of Tianjin Branch of CNOOC(China),Limited,Tianjin 300459,China;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation;School of New Energy and Materials,Southwest Petroleum University,Chengdu 610500,China)
出处
《机械工程材料》
CAS
CSCD
北大核心
2023年第3期24-30,共7页
Materials For Mechanical Engineering
基金
中海石油(中国)有限公司天津分公司横向项目(CCL2021TJT0NST0777)。
