采油三厂自2009年实施空气泡沫驱试验以来,注水井管柱和套管腐蚀严重,个别管柱有腐蚀穿孔现象,严重影响试验进展,生产成本增加,同时存在着安全隐患。针对该问题,研发了环空保护液、采取丛式井组阴极保护、井筒下封隔器及地面安装减氧装置等措施,措施后油水井井筒防腐性能良好,降低了作业成本,提高了原油采收率。 Since the implementation of the air foam flooding test in 2009, the oil well tubular string and casing have been seriously corroded, and the corrosion and perforation of individual tubular columns has seriously affected the progress of the test. As a result, the production cost is increased and there are potential safety issues. In response to this problem, the research and development of the annular space protection solution, the use of cluster well group cathodic protection, wellbore packers and installation of oxygen reduction devices on the ground and other measures after the well-well oil and water corrosion protection performance is good, reducing operating costs and increase crude oil Oil recovery.