胜利油区聚合物驱后注水技术政策界限研究

Study on technical policy limit of water flooding after polymer flooding in Shengli oilfield

聚合物驱后转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政策研究尤其重要。分析了胜利油区聚合物驱转入后续水驱阶段注入和产出系统产生的相应变化,认清了该阶段生产特征及驱油规律,采用数值模拟手段。研究了聚合物驱后续水驱阶段相关技术政策界限。

Subsequent water flooding after polymer flooding is the important oil incremental stage of polymer flooding. The working schedule and relevant technical policy study play key roles in this period. Production feature and oil displacement rule of the stage are made clear through studying the change of injection and production system in Shengli petroliferous province. Using numerical simulation, the relevant technical policy limit is studied. It also suggests ensured measures to prolong the effect in the subsequent water flooding stage.