孤岛油田油层胶结疏松,油层污染伤害较重,主要表现为粉细砂、微粒、粘土分散运移污染近井地带充填砂层和防砂管。文中论述了油层伤害的内外因素,提出不同解堵工艺的选井条件,并在生产中运用物理及化学解堵方法取得了很好的效果,获得良好的经济效益。对疏松砂岩类油藏的解堵增注工艺有一定的指导意义。 Gudao oilfield formation of loose cement, oil pollution heavier damage, mainly as fine sand, fine particles, clay dispersed migration near the wellbore filling sand and sand control. In this paper, the internal and external factors of oil layer damage are discussed, the conditions of well selection for different plugging processes are proposed, and good results are obtained by using physical and chemical plugging methods in production and good economic benefits are obtained. It is of guiding significance for the unblocking and plugging process of loose sandstone reservoirs.