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1·It's known to all that polymer solution can increase sweep efficiency.

普遍认为聚合物溶液可有效提高波及效率。

2·Polymer flooding technology enhances oil recovery by increasing the sweep efficiency of water.

聚合物驱油技术是通过提高水的波及系数提高原油采收率。

3·Wettability not only influences sweep efficiency, but also influences remaining oil distribution.

润湿性不仅影响驱油效率，也影响剩余油分布形态。

4·In addition, pore channel's shape affects microscopic sweep efficiency by changing the flow situation.

另外，流道形状对流体微观波及效率的影响也是通过改变流体的流动状态带来的。

5·Numerical results show that higher viscoelasticity, the larger microscopic sweep efficiency of the fluid.

数值结果表明，流体的粘弹性越高，微观波及效率越高。

6·The study results show that the displacement efficiency and sweep efficiency play different roles in the different layers.

研究结果表明，对于非均质性严重的油藏，不同层段的波及效率和驱替效率所起的作用不同。

7·Relationship between the capillary number and sweep efficiency and residual oil saturation were given from laboratory tests.

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。

8·In particular, discontinuous shales, acting as vertical flow barriers, affect significantly the sweep efficiency of oil reservoirs.

特别是，不连续的页岩，作为垂直的流体流动遮挡，极大影响油罐的洗油效率。

9·The injectivity, plugging performance and sweep efficiency of the gel system is evaluated through single and parallel core experiments.

通过单岩心和并联岩心实验对凝胶体系的注入性能、封堵性能和驱油效果进行了评价；

10·Pilot test of linear water injection may be carried out to improve the sweep efficiency of the injected water and improve the effect of block development.

开展线性注水先导试验，提高注入水的波及系数，改善区块开发效果。