结果表明，周期注水有效地改善了纵向非均质砂岩油藏的开发效果。
The results of lab test indicate that cycle injection can enhance development effect of vertical heterogeneous sandstone reservoir.
针对该油藏的地质特征和开采现状，利用周期注水技术改善开发效果。
According to the geological characteristics and current recovery status of this reservoir, cyclic water injection is adopted to improve development response.
为了验证理论计算结果，进行了室内实验和现场实际周期注水效果评价计算。
In order to verify calculation results in theory, it carries out shop experiment and on-site actual cyclic water injection effectiveness evaluation calculation.
利用VIP模拟器和两层地质模型首次进行了周期注水的油藏数值模拟研究。
By using the VIP simulator and a two-layer model, for the first time, the numerical reservoir simulation for the cyclic flooding have been studied.
应用油藏数值摸拟方法，研究了各种地质、开发因素对周期注水效果的影响。
By using numerical reservoir simulation, the effects of various geologic and developmental factors for a cyclic flooding is studied.
以数值模拟、室内实验为依据，论证了对裂缝性砂岩油藏实施周期注水的可行性。
Based on numerical simulation and lab experiment, this paper illustrates the practicability of cyclic water flooding in fractured sandstone reservoirs.
建立了裂缝性砂岩油藏周期注水数学模型，分别给出了数学模型的数值解和解析解。
The cycle injection math model for fracture stone reservoir is established, and both of analysis solution and numerical solution are given in this paper.
周期注水是开发灰岩储层低渗透基质中原油的一种有效方法，但对于亲油储层效果较差。
The cyclic water-flooding method is effective for development of oil in low-permeability matrix of limestone reservoir and unsuitable for the oil-wet reservoir.
结论是，毛管力的作用是第一位的，弹性力的作用是第二位的，水湿油层更适合周期注水。
The conclusion is: capillary force is in first, elastic force is in second, water-wet oil reservoir is more suitable to cyclic water injection.
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.
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。
The result shows that cyclic water injection may be more effective if increasing oil-water percolation rate, standup pressure time and water holdup coefficient.
现场试验表明：周期注水技术在该油田矿场试验中取得了积极的效果，为油田进行大规模周期注水展示了良好的前景。
Field test shows that, cyclic water injection has achieved positive effect and shows bright future of large scale cyclic injection.
研究表明，在周期注水改善开发效果中，各种力所起的作用大小不同，毛管力的作用是主要的，弹性力的作用是次要的，重力基本不起作用。
This study shows that for improving development effect in the cyclic flooding, order of roles played by various forces are: capillary force, elastic force, while gravity plays no part in it basically.
同时，结合扶余油田西区矿场实例对周期注水的注水方式、周期、注水量及效果进行了探讨。对裂缝性砂岩油藏实施周期注水具有重要的借鉴意义。
Meanwhile, it discusses the pattern cycle water injection rate and effect of cyclic water flooding in the pilot in western area of Fuyu Oil Field.
周期性脉冲式注水可以在地层中造成不稳定压力状态，在薄含水层中造成剩余压力。
Cyclic pulse injection may cause the transient pressure regime in the reservoir and remaining pressure in a thin aquifer.
对于非均质程度很高的砾岩油层，采用周期性注水方式可以大幅度地提高原油采收率。
For a severe conglomerate reservoir heterogeneity, cyclic water injection process may substantially enhance oil recovery.
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。
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。
Cyclic water injection development can expand sweep radius and enhance displacement efficiency.
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