压力系数对于任何具体的天然水驱油(气)藏不是一个常数。

The pressure factor is not a constant for given natural water drive reservoir.

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对水驱开发油藏论述了天然驱动能量的分级方法与天然水驱开采效果的评价方法。

For flooding development reservoir, addressed the classing method for natural driving energy and the evaluating method for natural water drive development effect.

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掌握边底水运动规律，控制并利用活跃的边底水能量，是成功开发天然水驱油藏的关键。

The key of successful development in natural water-drive oil reservoirs is to grasp the movement rule of edge and bottom water and to control and use the their active energy.

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