在研究粘土矿物对地层伤害机理的基础上,分析了无机物和有机聚合物体系粘土稳定剂的不同作用机理,考虑到现场使用的经济性,通过性能测试对比,筛选出聚季胺—氯化胺复合粘土稳定剂,达到综合治理粘土矿物对地层造成的多种伤害的目的。经现场21口井试验,收到了很好效果,其中14口注水井中,平均单井增注60立方米以上,有效期达半年多;受效油井增产和6口油井累计增油8430吨。 Based on the study of the formation damage mechanism of clay minerals, the different action mechanism of clay stabilizer for inorganic and organic polymer systems was analyzed. Taking into account the economical efficiency of field use, the polyquaternium-chlorinated Amine compound clay stabilizer to achieve the purpose of comprehensive treatment of clay minerals caused by a variety of damage to the formation. The field test of 21 wells, received good results, of which 14 injection wells, the average single-well injection of more than 60 cubic meters, valid for more than six months; affected oil wells yield and 6 oil wells total oil 8430 tons.