采用电化学方法研究了有机膦酸盐、硫脲、季铵盐三种缓蚀剂在油田配注水中对碳钢的缓蚀行为。结果表明：在油田配注水溶液中，有机膦酸盐、硫脲、季铵盐三种缓蚀剂对碳钢的缓蚀效果依次减小，而且随着浸泡时间的延长，这三种缓蚀剂的缓蚀效果都会大幅降低，这可能与油田配注水中的复杂成分有关，特别是细菌等微生物的新陈代谢活动将导致有机缓蚀剂的降解。因此，寻找高效和长效的缓蚀剂仍然是油田腐蚀控制的一个重要研究方向。

Corrosion inhibition behavior of three inhibitors of organo-phosphonate, thiourea and hyamine on carbon steel in oilfield injection water was investigated by electrochemical methods. The results showed that the descending order of corrosion inhibition efficiencies of these three inhibitors was organo-phosphonate, thiourea and hyamine. Moreover, the efficiencies of these three inhibitors all declined greatly with the increase of immersion time. It was possibly related to complicated ingredients in oilfield injection water, especially microorganism such as bacteria, whose metabolism activities brought the degradation of organic inhibitors. Therefore, seeking efficient and long-acting inhibitors is still an important research direction for corrosion control in oilfield.