抗CO_2腐蚀管线钢研究现状与展望

Research status and prospect on CO_2 corrosion resistant pipeline steel

在石油天然气开采和储运过程中因半生气体CO2的存在,对油气田管线会产生严重的腐蚀和重大的经济损失。针对管线钢特定的腐蚀环境,总结了当前CO2腐蚀在反应机理上的研究,简要介绍了温度、CO2分压、pH值和流速等多种因素对管线钢在CO2环境中腐蚀的影响,综述了近年来国内外管线钢在CO2环境中的腐蚀问题研究现状及发展趋势。

Due to the presence of CO2 in the process of oil and gas exploitation and transportation,the oil and gas pipelines will have serious corrosion and significant economic losses.In viewing of the specific pipeline corrosion environment,the current researches on reaction mechanism of CO2 corrosion were summarized,which briefly described the impact of various factors（temperature,CO2 partial pressure,pH value and the flow rate）on the corrosion of pipeline steel in CO2 environment,reviewed the research status at home and abroad in CO2 environment pipeline corrosion problems in recent years,and prospected the research trends of the fight against CO2 corrosion.