J55钢在模拟CO2 注入井环空环境中的关键性腐蚀因素

崔怀云, 刘智勇, 卢琳

Critical Corrosion Factors for J55 Tubing Steel in a Simulated Annulus Environment of CO2 Injection Well

CUI Huaiyun, LIU Zhiyong, LU Lin

图9 J55钢在不同PCO2下的动电位极化曲线和拟合结果

Fig.9 Polarization curves (a) and fitting results (b) of J55 steel with differentPCO2 (Ptotal = 9 MPa, pH = 4, T = 25oC)