CO2 驱采油井复杂环境中N80油管断裂失效机理
张德平, 闫立震, 于洋, 杨广明, 代春宇, 孟乐, 徐博, 刘智勇

Fracture Failure Mechanism of N80 Tubing in Sophisticated CO2 Flooding Production Well Environment
ZHANG Deping, YAN Lizhen, YU Yang, YANG Guangming, DAI Chunyu, MEGN Le, XU Bo, LIU Zhiyong
图5 N80油管断口表面腐蚀产物的微观形貌及成分
Fig.5 Microstructures of the different zones of fracture surface of N80 tubing and corresponding compositions of corrosion products: (a) fracture surface, (b) outer zone, (c) middle zone, (d) inner zone