Using the natural sandstone micromodel a lot of displacement experiments of oil and water have been done with different fluid viscosity ratio, and the viscous instability fingering have been studied, and proper injection rate and oil water viscosity ratio have been put forward to avoid the injected water fingering.
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。
