与二次采油相比，它借助物理和化学的双重作用，提高驱油的波及体积和效率。
Compared to secondary recovery, it improves the sweep volume and efficiency of oil displacement by the AIDS of physical and chemical dual effect.
如何有效地控制含水，扩大注水波及体积，提高驱油效率是当前所要急需解决的问题。
How to control water cut, extend swept volume of water injection and enhance oil displacement efficiency is a problem in dire need of settle at this time.
利用采出程度、驱油效率和体积波及系数三者关系，给出了体积波及系数与可采储量采出程度的计算公式。
In addition, using the relationship among recovery percent, displacement and volumetric sweep efficiency, the equations for estimation of the volumetric sweep efficiency and.
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