胜坨油田聚合物驱转后续水驱技术对策研究

后续水驱阶段是聚合物驱油的重要增油时期,该阶段工作制度及相关技术对策研究尤其重要。胜坨油田经过聚驱开发后,油层开采程度得到了较大提高,但聚驱后油田仍存在较大生产潜力,为了寻求后续水驱阶段剩余油切实可行的有效挖潜方法,利用油藏动态分析和数值模拟结果,研究了胜坨油田后续水驱开采阶段行之有效的挖潜措施,应用于现场试验后,取得了较好增油降水效果,为有效指导油田聚合物驱提高采收率提供了依据。

Study on Technological Countermeasures of Polymer-transfer to Sequent Water-flooding in Shengtuo Oil Field

The stage of sequent water-drive is an important period for increase of oil production in polymer-drive oil operation,and it is rather important to study on its work system and correlation technique countermeasures. The recovery efficiency of Shengtuo Oilfield is increased greatly after polymer-drive operation, but the potential of production in the oil field still exists. In order to seek feasible methods, the paper studied the effective exploitation measures for the stage of sequent water-drive using the results of dynamic analysis and numerical simulation. And the effect of increased oil production and reduction of water usage is obtained by means of the coordinate techniques used in oilfields, providing the basis for further improvement of oil recovery ratio.