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1·This is a new EOR technology which can improve swept factor and oil displacement efficiency.

是既有提高波及系数，也有提高洗油效率的一种新的提高原油采收率技术。

2·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。

3·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。

4·The displacement efficiency kept stable, when increasing the injecting speeds of xanthan solutions.

增加注入速度时，黄原胶溶液的驱油效率提高值不变。

5·Rotating casing is helpful to improve effectively mud displacement efficiency and thus improve cementing quality.

旋转套管可以有效提高水泥浆顶替效率，从而提高固井质量。

6·How to improve cement slurry displacement efficiency and cementing quality are cementing successful key of the well.

如何提高水泥浆顶替效率及固井质量是该井固井成功的关健。

7·Gas injection into fractured reservoirs can maintain the formation pressure and improve the displacement efficiency.

注气可以维持裂缝性储层的地层压力。

8·The technical measures to increase displacement efficiency are given and discussed for the Wells with weak formations.

给出并讨论了低压易漏井提高注水泥顶替效率的工艺技术措施。

9·Adopting helical flow displacement theory can overcome the disadvantage and greatly improve the displacement efficiency.

使用螺旋流顶替理论能克服这一缺点，大大改善顶替效率。

10·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。