...层压力低于饱和压力时，会引起地层原油的收缩，从而增加了原油粘度和地层残余油饱和度，并降低了水驱的流度比（mobility ratio）。根据他们的统计研究结果，需要对（2-39）式作如下的修正：
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无论垂直井还是水平井系统，采收率都随流度比的增加而减少。
For both vertical and horizontal well systems, oil recovery decreases with increasing mobility ratio.
乳状液的形成改善了流度比，调整了注采剖面，提高了稠油采收率。
The improved mobility ratio and the adjusted cut plane by the emulsion enhanced the heavy crude recovery efficiency.
通过大量非均质和均质岩心物理模拟实验，给出了三元复合驱和聚合物驱替原油时的合理流度比。
This paper performs a large number of heterogeneous and homogeneous core physical simulation experiments and gives the reasonable mobility ratio of polymer flooding, ASP flooding and oil displacement.
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