低H<sub>2</sub>S和高CO<sub>2</sub>分压下超深井用P110SS油套管钢腐蚀特征研究

低H₂S和高CO₂分压下超深井用P110SS油套管钢腐蚀特征研究

幸雪松, 范白涛, 朱新宇, 张俊莹, 陈长风

Corrosion Characteristics of P110SS Casing Steel for Ultra-deep Well in Artificial Formation Water with Low H₂S and High CO₂ Content

XING Xuesong, FAN Baitao, ZHU Xinyu, ZHANG Junying, CHEN Changfeng

图7 在100和220 ℃下2 kPa $p_{H_{2} S}$ 和不同 $p_{C O_{2}}$ 时P110SS钢腐蚀产物XRD分析结果

Fig.7 XRD patterns of P110SS steel after corrosion under 2 kPa $p_{H_{2} S}$ and varied $p_{C O_{2}}$ at 100 ℃ (a) and 220 ℃ (b)