N80钢在二氧化碳饱和的模拟油田液中的高温高压腐蚀行为研究

腐蚀学报（英文）, 2009, 21(5): 486-488.

N80钢在二氧化碳饱和的模拟油田液中的高温高压腐蚀行为研究

黄天杰 , 王峰 , 殷安会 , 祝英剑

松原 138000； 2吉林油田公司勘探开发研究院

松原 138000； 3中国科学院金属研究所

沈阳 110016

1.1Petroleum Production Technology Research Institute of Jilin Oilfield Company

Songyuan 138000

 2Exploration &

Development Research Institute of Jilin Oilfield Company

Songyuan 138000

 3Institute of Metal Research

Chinese Academy of Sciences

Shenyang 110016

关键词： CO₂腐蚀 , N80 steel , high-temperature and high-pressure , chloride ion

HIGH-TEMPERATURE AND HIGH-PRESSURE CORROSION BEHAVIOR OF STEEL N80 IN A SIMULATED OIL FIELD FLUID SATURATED WITH CARBON DIOXIDE

HUANG Tian-jie , WANG Feng , YIN An-hui , ZHU Ying-jian

Keywords： CO₂ corrosion , N80钢 , 高温高压 , 氯离子

用失重法研究了高温高压下N80钢在模拟油田液中的腐蚀行为.结果表明：随着温度及CO₂分压的升高,N80钢的腐蚀速率增大,并在5 MPa及100℃时达到最大值.在此基础上,考察了Cl^-对腐蚀速率的影响.

Corrosion behavior of pipeline steel N80 was studied in a high-temperature and high-pressure fluid saturated with carbon dioxide by weightloss method for simulation of the corrosion occurred at oil fields.The results showed that with the increase of temperature and CO₂ partial pressure,corrosion rate of N80 steel increases,which reaches a maximum under 5 MPa at 100℃.On this basis,a study of the influence of chloride ion on the corrosion rate was also conducted.

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