从而为今后改进注水作业措施，提高注水采收率提供实验依据。
The more rational test conditions are applied to provide the basis for improving the waterflooding operations and enhancing oil recovery by waterflooding.
周期注水技术主要是通过油水交渗效应、毛管压力作用，增加注水波及体积，从而提高水驱采收率的技术。
Cyclic water injection increases swept volume through oil-water percolation effect and capillary pressure effect to improve water drive recovery factor.
注水是保持地层压力、提高原油采收率的主要措施之一。
Water injection is one of the major measures to keep formation pressure and improve oil recovery.
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