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利用真实砂岩微观孔隙模型进行了不同油水粘度比下的油水两相驱替试验，研究了粘性不稳定指进；提出了控制注入水粘性指进的注入速度及油水粘度比的要求，对指导油田生产有一定的意义。
Oil and water two-phase flooding experiments with different oil-water viscosity ratios were carried out using the real sandstone micro-pore model. The viscosity-instability index was studied. The injection speed and the viscosity-to-oil ratio of injecting water were put forward. Production has a certain meaning.