针对镇泾油田采油污水回注系统腐蚀结垢的严重情况,分析了回注系统的水质及管道结垢成分,明确了其腐蚀结垢原因。通过室内实验筛选出的缓蚀阻垢剂PBTCA最适合镇泾油田现场水质防腐阻垢。在药剂质量浓度20 mg/L时,能同时实现对腐蚀与结垢的有效控制。 Aiming at the serious situation of corrosion scaling of oil recovery wastewater injection system in Zhenjing Oilfield, the water quality of the injection system and the scaling components of the pipeline were analyzed, and the causes of corrosion and scaling were clarified. Corrosion and scale inhibitor PBTCA, which is screened through laboratory experiments, is most suitable for the on-site water quality anti-corrosion scale of Zhenjing Oilfield. At a concentration of 20 mg / L, effective control of corrosion and scaling can be achieved simultaneously.