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CO2 corrosion behaviors of 13Cr steel in the high-temperature steam environment 被引量:6
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作者 Guoqing Xiao SiZhou Tan +5 位作者 Zhiming Yu Baojun Dong Yonggang Yi Gang Tian Huiyong Yu Shanzhi Shi 《Petroleum》 CSCD 2020年第1期106-113,共8页
The study aims to explore the corrosion behaviors of 13Cr steel in the high-temperature steam environment.The corrosion behaviors of 13Cr steel were tested in CO2 auxiliary steam drive environment simulated with the H... The study aims to explore the corrosion behaviors of 13Cr steel in the high-temperature steam environment.The corrosion behaviors of 13Cr steel were tested in CO2 auxiliary steam drive environment simulated with the HTHP autoclave.The corrosion morphology and product composition were explored by SEM,EDS,XRD and XPS.The exploration results showed the corrosion rate of 13Cr steel in the high-temperature steam environment was less than 0.04 mm/a.The corrosion behaviors of 13Cr steel were mainly affected by temperature and chloride ion concentration.Temperature inhibited steam condensation and the compactness of Cr-rich layer.With the increase in temperature,more droplets were adsorbed on the surface of 13Cr steel and the compactness of the Crrich layer is worse.Chloride ions affects the activity of Fe atoms in the metal matrix.When chloride concentration increased,Fe^2+concentration in the solution and FeCO3 content in the rich-Cr layer were increased and the rich-Cr layer became looser. 展开更多
关键词 CO2 auxiliary steam drive Temperature Cl−concentration Corrosion 13Cr steel
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