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前文[1]曾指出，影响粘性指进现象的因素除了与时间有关之外，还与其它参数有关。仍以排出率（Se）为目标函数，研究了油溶液和水溶液两种流体的流度比（M）、模型的玻璃表面粗糙度（ε）对粘性指进的影响。得出结论：在该条件下，M≤1时指进现象不明显，Se大；M＞1时指进现象明显，Se小。ε增大后接触角（θ）增大，润湿作用增强，因此M减少可使Se增大。这些现象对研究聚合物驱油机理，提高驱油效率有一定意义。
It has been pointed out in the previous article [1] that the factors influencing viscous fingering are related to other parameters in addition to the time. The influence of the flow ratio (M) of the two fluids and the glass surface roughness (ε) of the model on the viscosity index was also studied with the discharge rate (Se) as the objective function. Concluded that: Under this condition, when M≤1, the phenomenon of entry is not obvious, Se is large; when M> 1, the phenomenon of entry is obvious, and Se is small. When ε increases, the contact angle (θ) increases and the wetting effect increases. Therefore, the decrease of M can increase Se. These phenomena have some significance to study the polymer flooding mechanism and improve the oil displacement efficiency.