为了揭示扶余油田扶杨油层砂体分布和流体渗流规律,采用层次分析方法,将扶余油层划分成复合河道、单河道、河道内加积体等构型要素,将杨大城子油层划分成河道、点坝、点坝内侧积体等构型要素,并归纳总结了不同构型界面同渗流屏障关系.在此基础上,综合孔隙度、渗透率、流动分层指标(FZI)、剩余油饱和度、水驱指数等参数,采用聚类方法,将扶杨油层划分成4类流动单元,并得到各自的判别标准.结合储层构型,识别出5种流动单元成因类型.油田动态数据和划分流动单元关系表明,流动单元能够有效预测产能、指示剩余油分布和砂体动用效果.
Aiming at revealing the distribution of sandbody and the rule of fluid flowing in the Fuyu -Yang-dachengzi Formation of the Fuyu Oilfield, the Fuyu Formation was divided into compound channel, single chan-nel and accretion, and the Yangdachengzi Formation was divided into single channel, point bar and lateral accre-tion through hierarchical analysis. The relationship between architecture surfaces and flow barriers was summa-rized. Based on parameters such as porosity, permeability, FZI, remaining oil saturation and water driving in-dex, four types of flow units with their own judging standard were classified as to the Fuyu-Yangdachengzi For-mation. Combining with reservoir architecture, there were five genetic types of flow unit. The relationship be-tween flow unit and dynamic data demonstrated that the flow unit could forecast productivity, instruct the distri-bution of remaining oil and the effectiveness of producing.