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6 在100和220 ℃下2 kPa pH2S以及不同pCO2时P110SS钢腐蚀产物微观形貌

Fig.6 SEM morphologies of P110SS after corrosion at 100 ℃ (a-c) and 220 ℃ (d-f) under 2 kPa pH2S and 1 MPa (a, d), 4 MPa (b, e) and 10 MPa (c, f) pCO2