The basic law of injection development is the injection development at the early stage, fast water-cut rising and low recovery degree at middle stage.
注水开发的基本规律是：注水开发早、中期含水上升速度快，采出程度低，相当多的水驱可采储量要在高含水期采出。
With the progression of recovery, the efficiency of enhanced recovery is low, which is disadvantageous for improving technical and economic benefits in the high water-cut stage(over 80%) of oilfield.
随着开采过程的延伸，在油田高含水后期开发（综合含水率大于80%）中采用强化开采方式是低效的，不利于提高油田开采的经济效益和技术效果。
With the progression of recovery, the efficiency of enhanced recovery is low, which is disadvantageous for improving technical and economic benefits in the high water-cut stage(over 80%) of oilfield.
随着开采过程的延伸，在油田高含水后期开发（综合含水率大于80%）中采用强化开采方式是低效的，不利于提高油田开采的经济效益和技术效果。
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