注入速率增加时，黄原胶溶液的残余阻力系数下降，衰竭层厚度降低，采收率变化不大。
The residual resistance factors and the depleted layer thickness of Xanthan solution decrease with injection speed increase, but recovery does not vary much.
聚合物驱油技术是通过提高水的波及系数提高原油采收率。
Polymer flooding technology enhances oil recovery by increasing the sweep efficiency of water.
实验研究了外加直流电场作用下水驱油藏多孔介质中的流体渗流速度、阻力系数、储层渗透率及原油采收率的变化特性。
The variation of seepage velocity, resistance coefficient, reservoir permeability and oil recovery in porous media of water-drive reservoir in direct current (DC) electric field are studied in detail.
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