Formulas are achieved for timing of rational advanced water injection and limit water injection in low permeability reservoirs.
并应用这两个公式对榆林油田的合理超前注水时间和极超前注水时间进行了计算。
参考来源 - 计算超前注水中合理注水时间与极限注水时间的一种方法·2,447,543篇论文数据，部分数据来源于NoteExpress
But the researches based on the mechanism of advanced water injection improving the effect of exploration and the development technique policy of advanced water injection are few.
但对超前注水改善开发效果机理以及超前注水开发技术政策的研究较少。
This method has obtained an evident effect in the oil field production. The advanced water injection can enhance the level of developing low permeability reservoirs and economic benefit.
该方法在油田实际生产中取得了明显效果，对低渗及特低渗透油田开发实现效益最大化具有重要意义。
More than 5000 hours test showed that the advanced design is superior to the former ones. The leakage flow is fairly stable with the change of the temperature of injection water.
经5000多小时试验表明，改进结构比其他两组密封部件的性能优越，当注入水温度变化时，泄漏量相当稳定。
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