高钢级油井管在高温高压气井全生命周期环境中的腐蚀行为及寿命预测
赵密锋1, 付安庆2(
), 胡芳婷1, 谢俊峰1, 龙岩2, 耿海龙1
), 胡芳婷1, 谢俊峰1, 龙岩2, 耿海龙1
Corrosion Behavior and Life Prediction of High Grade OCTG in Full-life-cycle Environment of High Temperature High Pressure Gas Well
ZHAO Mifeng1, FU Anqing2(), HU Fangting1, XIE Junfeng1, LONG Yan2, GENG Hailong1
), HU Fangting1, XIE Junfeng1, LONG Yan2, GENG Hailong1
图4. 高钢级油井管在气井全生命周期连续多环境中的微观腐蚀形貌
Fig.4. Corrosion morphologies of high grade OCTG in gas well full-life-cycle multi-consecutive environment: (a) LA (4 h), (b) LA+SA (5 d), (c) LA+SA+CW (10 d), (d) LA+SA+CW+FW (15 d), (e) LA+SA+CW+FW (30 d), (f) LA+SA+CW+FW (60 d), (g) LA+SA+CW+FW (90 d)
