摘要
研究了温度、CO2 分压、溶液pH值及Cl-浓度对 4种油套管常用材料N80、P10 5、P110和SM110腐蚀行为的影响 .在温度为 90℃时 ,4种材料的腐蚀速率都达到最大值 .当温度为 6 5℃时 ,除P10 5外 ,其它材料的腐蚀速率随CO2分压的增大而升高 .而在 90℃时 ,除P10 5外 ,其它材料的腐蚀速率在CO2 分压为 2 5MPa时达到最大值 .溶液pH值及Cl-浓度对材料的腐蚀速率的影响不明显 .
It was studied that the effects of temperature,partial pressure of CO 2,pH value of solution and concentration of Cl- on corrosion behavior of 4 types of steels,which include N80,P105,P110 and SM110 thimble using in oilfield.At 90℃,the corrosion rate of all metals reached maximum value.At 65℃,except P105,the corrosion rate of other materials increased with pressure of CO 2 increasing,however,it reached maximum value at 2.5 MPa pressure of CO 2 when the temperature was 90℃.The influence of pH value of solution and Cl-concentration of Tarim oil field on corrosion rate of metals investigated were lightly.
出处
《中国腐蚀与防护学报》
CAS
CSCD
2004年第4期230-233,共4页
Journal of Chinese Society For Corrosion and Protection
关键词
腐蚀
油套管
温度
CO2
corrosion,oil thimble,temperature,CO 2
