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采用自然分段结合聚类分析的方法,在该区识别出4类流动单元,并以短期旋回为单位,对各类流动单元进行了平面分布预测,按流动单元的平面结构特征将短期旋回分为4类.采用概念模拟、定性分析和定量模拟的方法对剩余油进行了研究,表明储层流动单元结构对剩余油的控制明显,处于一类、二类短期旋回中的大面积连续分布的E,G型流动单元大多水淹,而在以F型为主的三类短期旋回中不被控制的小型孤立的G型流动单元及大面积分布的F型流动单元成为剩余油富集部位,针对此,开发调整策略应加强小规模E,G型流动单元的完善,加大三类短期旋回的动用力度,封堵一类短期旋回.这一策略明显改善了油田的开发效果.
Using the method of natural segmentation combined with cluster analysis, four kinds of flow cells were identified in this area, and the planar distribution of various flow cells was predicted by short-term cycles. According to the planar structure of flow cells, Which is 4. The remaining oil was studied by means of conceptual simulation, qualitative analysis and quantitative simulation, which showed that the control of the residual oil by the unit cell structure of the reservoir is obvious, and the large-area continuous distribution in the first and second types of short-term cycles Most of E and G flow units are flooded, whereas small isolated G-flow units and large-area F-flow units that are uncontrolled in the three types of short-term cycles dominated by F become the remaining oil-rich sites, In response, the development of adjustment strategies should strengthen the improvement of small-scale E and G flow cells, increase the utilization of short-term cycles of three types and plug a short-term cycle of swaps, which has obviously improved the development effect of oilfields.