CORROSION BEHAVIOR OF 3CR STEEL IN HIGH H2S/CO2 ENVIRONMENT

摘要：

Corrosion behavior was investigated with common 3Cr tubing and casing steel through simulation of actual H2 S/CO2 environment in an autoclave. The way how the temperature, water ratio and the partial pressure of H2S and CO2 make an effect on the corrosion pattern of 3Cr was studied, and the micro-morphology and microstructure had been analyzed by means of SEM (scanning e-lectron microscopy), XRD(X-ray diffraction) and EDS(energy dispersive spectrometer) technique. Under the simulation condition of oil-water two-phase, the uniform corrosion rate of 3Cr steel has been significantly decreased; the 3Cr steel experiment of stress corrosion crack (SCC) through simulation of actual H2S/CO2 environment indicates susceptibility for stress-cracking is higher at low temperatures than it is at high temperatures.

关键词： high H2S/CO2 environment tubing and casing steel corrosion rate stress corrosion cracking

作者: Chen Li-qiang Li Xiang Chen Chang-feng Zheng Shu-qi

作者单位: College of Mechanical and Electronic Engineering,China University of Petroleum,BeijingBeijing,China

会议类型: 国际会议

会议名称: The 3rd World Conference on Safety of Oil and Gas Industry(第三届世界石油天然气工业安全会议 WCOGI 2010)

会议地点: 北京

会议语种:英文

页码: 644-649

在线出版日期: 2010-09-27（万方平台首次上网日期，不代表论文的发表时间）