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储层的微相砂体类型、几何规模特征及分布规律是分析地下油水运动规律基础。充分利用密闭取心资料,精细剖析了双河油田扇三角洲前缘储层沉积微相及其分布。在扇三角洲前缘主要发育水下分流河道、河口坝、远砂坝、前缘席状砂体、分流间湾、水下溢岸砂体、重力流砂体、前三角洲泥等8种微相砂体。微相类型及其分布控制着油水井的产液及吸水能力,控制着注入水的地下运动方式,因此利用沉积微相的研究成果,对找准剩余油富集区及强化采油可以起到较好的效果。
The microfacies type, geometry characteristics and distribution rule of reservoir are the basis of analyzing the law of underground oil-water movement. Taking full advantage of the closed coring data, the sedimentary microfacies and their distribution in the fan delta front reservoir of Shuanghe Oilfield are analyzed in detail. At the fan delta front, there are mainly 8 kinds of microfacies, such as underwater distributary channel, estuarine dam, distal sand bar, foreland sand body, distributary bay, underwater overflowing sand body, gravity flow sand body and front delta mud body. The type and distribution of microfacies control the production fluid and water absorption capacity of oil and water wells and control the underground movement mode of injecting water. Therefore, by using the research results of sedimentary microfacies, it is feasible to identify the remaining oil enrichment zone and enhanced oil recovery Good results.