注水是油田提高产量及采收率的一种常规措施和采油方法，但注水也存在着地层伤害，如水敏、乳化等。针对吐哈油田的储集层地质特征和注水情况，在应用离心法将样品分两批离心不同时间的基础上，经扫描电镜分析、X—衍射分析、荧光显微镜鉴定、渗透率检测等手段，探讨了室内注水模拟实验中伊／蒙间层矿物对储集层产生的伤害，提出了注水中迁移的伊／蒙间层矿物的乳化液堵将对油田油层产生较大伤害的观点。 Water injection is a conventional measure and oil recovery method to increase oil production and oil recovery. However, there are also stratigraphic damage caused by water injection, such as water sensitivity and emulsification. Aiming at the geologic characteristics and water injection of reservoir in Tuha Oilfield, the samples were centrifuged at different times in two batches by centrifugation. The samples were analyzed by scanning electron microscopy, X-ray diffraction, fluorescence microscopy and permeability test. In this paper, we discuss the damage of the Iraqi / intergranular minerals to the reservoirs in the simulation experiment of indoor waterflooding and put forward the viewpoint that the emulsion blocking of the Iraqi / intergranular minerals migrating during waterflooding will cause great damage to the oilfields.