温度和压力对N80钢CO_2/H_2S腐蚀速率的影响

Effect of temperature and pressure on CO_2/H_2S corrosion rate of N80 steel

采用高温高压釜 ,辅以失重法 ,对不同温度和不同CO2 、H2 S分压下N80钢的CO2 /H2 S腐蚀速率进行了研究。结果表明 ,在试验温度和压力范围内 ,随着温度的升高 ,腐蚀速率先增后降 ,且在 90℃时达到最大 ;随着CO2 分压的升高 ,腐蚀速率单调增加 ;随着H2 S分压的升高 ,腐蚀速率先增后降 ,且在H2 S分压为 0 .0

An autoclave, together with weight loss method, is used in study of CO_2/H_2S corrosion rates of oil tube steel N80 at different temperature. The results show that with temperature increased corrosion rates increase at first and then decrease and the peak appear at 90 ℃. With CO_2 partial pressure increased their corrosion rates increase. With H_2S partial pressure increased, corrosion rates increase at first and then decrease and the peak appearsat 0.02 MPa H_2S.