We studied the distribution of pressure field and saturation field under different well patterns, and discussed1 profound reasons why rectangle well pattern is fit for low permeability reservoirs.
研究了各种井网型式下的压力场及饱和度场的分布，探讨了矩形井网适合低渗油藏开发的深层原因。
The field dynamic development data present that the low-oil saturation oil reservoirs have obviously different percolation features with common oil reservoirs.
采用岩心水驱油试验及物理模型模拟试验等方法系统研究了低含油饱和度油藏的渗流特征及水驱油机制。
The average saturation space-charge field is small and the diffraction efficiency is low as a result of the non-uniformity of the grating.
结果显示，非均匀性致使光折变光栅的平均强度减弱，衍射效率降低。
The average saturation space-charge field is small and the diffraction efficiency is low as a result of the non-uniformity of the grating.
结果显示，非均匀性致使光折变光栅的平均强度减弱，衍射效率降低。
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