河流相储层建筑结构的解剖与应用

Classification and application of the fluvial reservoir structure

针对油田高含水开发阶段河流相储层非均质性突出、剩余油分布更加分散的状况 ,研究了河流相储层建筑结构的解剖方法 ,提出了河流相砂体沉积单元划分、沉积微相细分的具体方法和步骤 ;揭示了各类储层的宏观非均质特点 ;结合油田开发实际描述了不同沉积微相的剩余油分布特点 ,并提出了挖潜对策 ;为指导油田开发调整。

At the stage of high water-cut in oil field development, the heterogeneity of fluvial reservoir gets more and more apparent, this causes remaining oil to be more dispersing. We have carried out the study of architecture of fluvial reservoir, and we have put forward the method about classifying sedimentary unit of fluvial sandbody and precisely identifying microfacies, and we have accurately revealed the macroscopic heterogeneity of different reservoir. Taking into account the development practice of Daqing Oil Field, we have described the distribution law of remaining oil in different microfacies sandbody. we have presented reliable evidence which may serve as a guidance to the development operation and enhanced oil recovery.