The oil recovery under water drive is an important factor for the evaluation of water displacement efficiency of a reservoir.
油藏水驱开发潜力是分析评价油藏开发开采水平的重要参数。
In multilayer heterogeneous reservoir, the interlayer difference would lead to nonuniformity of injection profile and influence water displacement efficiency.
对于多油层非均质油藏，层间差异会导致吸水剖面不均匀，影响水驱效率。
The stimulating displacement experiments show that, based on water flooding efficiency 58.65%, the oil displacement efficiency can increase 15.75% (OOIP).
模拟驱油实验表明，在水驱原油效率58.65%的基础上可再提高驱油效率15.75% (OOIP)。
When the wettability is neutrally and slightly water wet, the displacement efficiency is maximal.
润湿性为中性或弱水湿时，微观驱替效率达到最大。
In the evaluation of displacement efficiency of water flooding and watered out degree, oil saturation of reservoirs must be studied.
油田注水驱油效果以及水淹程度评价中，都需要研究储层含油饱和度的变化状况。
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.
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。
Cost of water injection is reduced and oil displacement efficiency is improved by converting water drive to expansion drive.
将水驱转换为弹性驱，降低了注水成本，提高了驱油效率。
Cyclic water injection development can expand sweep radius and enhance displacement efficiency.
通过多周期的注水吞吐开发，逐渐扩大水驱波及半径，提高驱替效率。
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.
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。
The result of laboratory experiments showed that the chemicals MCA improved the displacement efficiency of hot water and the sweep efficiency of steam and hot water.
化学体系中室内实验结果表明，化学体系中MCA能提高热水的驱替效率以及蒸汽和热水的波及效率。
The Results shows that the oil displacement efficiency is mainly affected by pore structure, macro heterogeneity, oil viscosity and technology policy of water flooding.
砾岩油藏驱油效率主要受储层微观孔隙结构特征、储层宏观非均质性特征、原油粘度和注水政策的影响。
Laboratory displacement experiment result shows that the displacement efficiency of foam complex system is 30% (OOIP) higher than water displacement. This provides a theoretica…
室内驱油实验结果表明，泡沫复合体系的驱油效率比水驱提高30 % （OOIP）以上。
After an analysis of the quality of injected water which exists in the pipes in Liuzan of Jidong Oilfield, it is found that the injected water scales, affects the oil displacement efficiency.
通过对冀东油田柳赞作业区注水水质的现状分析，得出管网结垢影响注水开发效果。
After an analysis of the quality of injected water which exists in the pipes in Liuzan of Jidong Oilfield, it is found that the injected water scales, affects the oil displacement efficiency.
通过对冀东油田柳赞作业区注水水质的现状分析，得出管网结垢影响注水开发效果。
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