reservoir-trap efficiency

Thermal method can enhance displacement efficiency for high water-cut oil reservoir, but can not increase sweep efficiency in most of the cases;

热力法开采高含水油藏能提高驱油效率，但一般不能提高波及效率；

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Classification parameters for low permeability reservoir has been found, which is based on the impact of flooding efficiency and recovery percent, regarding penetration, movable fluid saturation, the average throat radius and the starting pressure gradient.

从渗透率、可动流体饱和度、平均喉道半径和启动压力梯度对低渗透储层驱油效率、采收率的影响程度出发，建立了低渗透储层分类的参数体系。

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A model for the calculation of the sweep efficiency in a heterogeneous oil reservoir

驱油效率和体积波及系数的确定非均质油层波及系数计算模型

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Displacement characteristic curve is an important method used in reserv-oir engineering. It can be used to predict the reservoir performance of a water drive reservoir and to predict recovery efficiency of oil field as well.

水驱曲线法是油藏工程中的一个重要方法，它不仅能够预测水驱油藏的开发动态，而且也能预测油田的采收率。

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After water impoundment, the safely and efficiency of the reservoir are determined by reservoir leakage and permeative stability.

水库蓄水后的渗漏及渗透稳定性决定了水库能否安全高效的运行。

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The Experiment Study of the Influencing Factors on the Threshold Pressure and the Driving Oil Efficiency of the Low Permeability Sandstone Reservoir

低渗透砂岩储层启动压力及水驱油效率影响因素实验研究

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Using the S-2000 spheric grain improver in microscopic flowing to enhance I reservoir recovery efficiency technology

应用S-2000球形颗粒微观流向改变剂提高I类储层采收率技术

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As a whole, the displacement efficiency of the 4-7 sand sets reservoir decreased with the melioration of pore structure.

总体上，储层驱油效率随孔隙结构的变好而降低。

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Improve students' interestingness and learning efficiency by introduce examples like the impoundment of reservoir, the most value of resistors, sales pricing etc. that is familiar to students into the teaching and the aesthetic value of inequalities.

学生熟悉的水库蓄水、电阻最值、销售定价等关于不等式的生活实例融入课堂教学及向同学们介绍相关不等式的美学价值等方式以达到提高数学教学的趣味性，提高学习效率。

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Heat supply technology influences directly the production cost and efficiency of bitumen reservoir.

沥青库加热技术的好坏直接关系到沥青库的生产成本与经济效率.

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