润湿性不仅影响驱油效率，也影响剩余油分布形态。
Wettability not only influences sweep efficiency, but also influences remaining oil distribution.
在浓度低于缠结浓度时，黄原胶溶液的驱油效率很低。
The displacement efficiency of xanthan gum solution was low, when its concentration was lower than the overlap concentration.
增加注入速度时，黄原胶溶液的驱油效率提高值不变。
The displacement efficiency kept stable, when increasing the injecting speeds of xanthan solutions.
近年来，有关报导提出聚合物驱也可以提高驱油效率。
It is recently re-ported that polymer flooding also raises oil recovery ratio.
理论和实践都已证明：混相驱的驱油效率比非混相的高。
Theory and practice both come to the conclusion that the miscibility flooding efficiency is higher than immiscible flooding efficiency.
将水驱转换为弹性驱，降低了注水成本，提高了驱油效率。
Cost of water injection is reduced and oil displacement efficiency is improved by converting water drive to expansion drive.
随浓度或注入速度的增加，HPAM溶液的驱油效率升高。
While increasing concentrations or injecting speeds of HPAM solutions, the displacement efficiencies also increased.
表面活性剂能够提高此类储层的微观水驱油效率10%左右。
Surfactants can improve the water displacing oil efficiency by about 10%.
上述结果对研究聚合物驱油机理，提高驱油效率有一定意义。
Above results have a significance in studies on the mechanism of polymer flooding and improvement of flooding efficiency.
常温驱油效率低，水驱波及系数小，且水驱后原油黏度增加。
At normal temperatures, the oil driving efficiency and the sweep efficiency of water driving are low, and the crude viscosity increases after water drive.
目的研究特低渗弱亲油储层水驱油过程、水驱油效率及其影响因素。
Aim to study the water displacing oil efficiency of weak oil-wet low permeability reservoirs, displacing process and affecting factors.
同时，详细分析了不同孔隙结构的驱油机理以及对驱油效率的影响。
The homogeneity of the pore structures has rather effects on oil recovery efficiency.
通过微观驱油实验结果分析低界面张力体系能够提高驱油效率的机理。
Mechanism of low interfacial tension system increasing oil displacement efficiency is analyzed based on microscopic oil displacement experiments.
驱油效率实际值与预测值平均相对误差8.7%，精度满足生产要求。
The relative average error between predicted oil displacement efficiency and actual value is 8.7%, the accuracy meets demand of production.
可通过提高水洗程度来提高驱油效率，但降低水驱残余油的难度很大。
Polymer flooding can enhance the oil displacement efficiency through enhancing the water-out degree. But it is very difficult to decrease the waterflood remaining oil.
注空气、烟道气的驱油效率随着温度的升高而上升，但空气的升幅较大。
With the increase of reservoir temperature, displacement efficient increase of flue gas injection is more than of air injection.
同时研究表明在裂缝周围如果存在溶蚀裂缝，也有利于提高基质驱油效率。
Meanwhile, if the corrosion phenomena occurs around the fracture, the formed solution fracture is propitious to improve water displacing oil efficiency in matrix.
但其浓度只要高于缠结浓度一定程度后，驱油效率就会保持一个较高的值。
The displacement efficiencies of xanthan gum could keep a higher value, as its concentration was higher than the overlap concentration.
在聚合物驱油过程中，聚合物的性能对提高驱油效率起到了至关重要的作用。
In the polymer flooding process, the function of polymer played a crucial role to improve the flushing efficiency.
聚合物溶液在模型高渗透层内提高驱油效率作用的效果要好于中、低渗透层。
The effect of polymer solution on improvement of oil-displacement efficiency in high permeability layer is better than the effects in medium and low permeability layer.
通过实验分析了热水驱、蒸汽驱对驱油效率的影响，并与常规水驱进行对比。
Through experiments, oil displacement efficiencies of hot-water flooding and steam flooding have been analyzed and compared with conventional water flooding.
油气藏具有构造幅度低、非均质性严重、低阻油层发育及水驱油效率低等特点。
The reservoirs are characterized by low height trap, serious heterogeneous reservoir, low resistivity and poor efficiency of water driving oil.
实验研究了大庆油田所用ASP三元复合驱替液的驱油效率与碱浓度之间的关系。
The oil displacement efficiency of the ASP combinational flooding solution of varying alkaline concentration used at Daqing is studied experimentally.
通过试验给出了天然岩心驱油效率与毛管数的关系，剩余油饱和度与毛管数的关系。
Relationship between the capillary number and sweep efficiency and residual oil saturation were given from laboratory tests.
如何有效地控制含水，扩大注水波及体积，提高驱油效率是当前所要急需解决的问题。
How to control water cut, extend swept volume of water injection and enhance oil displacement efficiency is a problem in dire need of settle at this time.
因此，确切地说聚合物驱可以提高波及效率，但不能认为聚合物驱可以提高驱油效率。
Therefore, we can make sure that polymer flooding can obviously improve a sweeping efficiency, but do not think it can improve oil displacement efficiency.
通过大量的室内实验，研制出以石油磺酸盐为主剂的复配体系，并开展了驱油效率实验。
A compounded system mainly composed of petroleum sulfonate was developed and then an oil displacement efficiency experiment was carried out.
在聚合物驱油过程中，聚合物溶液的粘度和粘弹性对提高驱油效率起到了至关重要的作用。
In the process of displacement of oil by polymer solution, the viscosity and viscoelasticity of polymer solution are vital to displacement efficiency.
在聚合物驱油过程中，聚合物溶液的粘度和粘弹性对提高驱油效率起到了至关重要的作用。
In the process of displacement of oil by polymer solution, the viscosity and viscoelasticity of polymer solution are vital to displacement efficiency.
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