Abstract TG-201 inhibitor could minimize corrosion of HP-13Cr SS in the process of live acid. Moreover, it accelerated the probability of serious corrosion of SS during the well completion. The failure mechanism of TG-201 inhibitor was investigated using surface analysis and electrochemical measurements. TG201 inhibitor contains amounts of Cu2+, which would acquire the electrons prior to H+ to form Cu film. The failure mechanism was due to the synergistic effect attributed to the Cu film. Cu film promoted the formation of the occluded cell and the changes of fluid state evoked by the increase in interfacial roughness during the well completion.

中文翻译：

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TG-201抑制剂失效机理研究：促进HP-13Cr不锈钢完井协同作用

摘要 TG-201缓蚀剂可以最大限度地减少HP-13Cr SS在活酸过程中的腐蚀。而且，它加速了完井过程中SS发生严重腐蚀的可能性。使用表面分析和电化学测量研究了TG-201抑制剂的失效机制。TG201 抑制剂含有大量的 Cu2+，它会在 H+ 之前获得电子以形成 Cu 膜。失效机制是由于铜膜的协同效应。Cu膜促进了闭塞单元的形成和完井过程中界面粗糙度增加引起的流体状态变化。