TP110TS和P110钢在CO2注入井环空环境中应力腐蚀行为比较

李清, 张德平, 李晓荣, 王薇, 孙宝壮, 艾池

Comparison of Stress Corrosion Behavior of TP110TS and P110 Steel in a Simulated Annular Environment of CO2 Injection Well

LI Qing, ZHANG Deping, LI Xiaorong, WANG Wei, SUN Baozhuang, AI Chi

表3 不同缓蚀剂浓度下TP110TS和P110钢的极化曲线拟合结果

Table 3 Fitting results of polarization curves for TP110TS and P110 steels in simulated solutions with different concentrations of inhibitor

Condition Ecorr (vs SCE) / mV Icorr / μA·cm-2 TP110TS-0.4 g/L -113.85 2.595 TP110TS-1 g/L -18.84 1.520 P110-0.4 g/L -13.16 41.610 P110-1 g/L -153.34 0.450