注采比是指油田注入剂（水，气）地下体积与采出液量（油，气，水）的地下体积之比。用它衡量注采平衡情况。
...单井平均日注水量 N—全油田注水井数，口 Q y —产油量，t/d C—注水系数，取C=1.01.2 B—注采比(injection-production ratio) f w —含水率，%（重量百分比） B 0 —原油体积系数 0 —地面原油密度，t/m 3 w —注入水密度，t/m 3 Q w —全油田所需的...
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... 注采史 injection-recovery history 注入型构造 injection-type structure 注采比 injectionwithdrawal ratio ...
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... voidage rate 枯竭率；消耗率 voidage replacement ratio 注采比 voidage replacement 亏空充填 ...
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新肇油田整体周期注水技术理论探讨 关键词 剩余油 注采比 周期注水 [gap=876]Keywords] residual oil；injection to production ratio；cyclic waterflooding
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利用自喷转抽提液方法，放大生产压差，降低注采比。
The production pressure differential can be increased and the injection-production ratio can be reduced by transferring from flowing to pumping.
在理想情况下注采比的变化趋势是随注水时间的延续趋近1。
In the ideal condition, injection to production ratio turns out to become 1 as the time of waterflood lasts.
给出了考虑注采比和启动压力梯度的平均地层压力和边界压力的确定方法。
The method is presented to determine formation average pressure and boundary pressure with threshold pressure gradient and injection-production ratio.
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