Abstract: Main reservoir is seriously flooded while entering into extra high water-cut development stage. Remaining oil formed by the effect of structure, reservoir heterogeneity and well condition is highly scattered. In view of the characteristics of multi-layer fault reservoir and on the basis on fraetionized flow units,it perfornzs the study on microstructure, reservoir sedimentary microfacies, physical property and heterogeneous character and three-dimensional visible geologic reservoir model is built up. Based on the study of reservoir fine description and distribution law of remaining oil,different measures for potential tapping the remaining oil with its distribution characters have been adopted. Research result has been applied in the production with favorable effect.

Key words: flow unit, microstructure, Sedimentary microfacies, geologic model, high water-cut, rerriaining oil, tap production potential

摘要： 油藏进人高含水开发期以后,主力油层基本上水淹,由于构造、储层非均质性和井况影响形成的剩余油分布零散.针对高含水期多油层断块油藏的特点,在细分流动单元的基础上,进行微构造研究、储层沉积微相研究、储层物性和非均质性研究,并建立油藏三维可视化地质模型;在油藏精细描述的基础上,对剩余油分布进行定性分析和定量研究,然后根据剩余油分布特点采取不同的挖潜措施.研究成果应用于矿场生产后取得了良好的效果.

关键词: 流动单元, 微构造, 沉积微相, 地质模型, 高含水, 剩余油, 挖潜