基于储层构型的流动单元划分——以四五家子油田农安油层泉二段为例

Flow Unit Division Based on Reservoir Configuration——Taking the Second Member of Quan Formation in Nong’an Reservoir of Siwujiazi Oilfield as an Example

采用层次分析方法,将泉二段划分成复合河道、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、心滩、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、泥质含量等参数,采用聚类方法将泉二段划分成4类流动单元,并得到各自的判别标准。结合油田动态生产资料和划分流动单元关系表明,流动单元能够指导注水开发、指示剩余油分布和砂体动用效果。

In this paper,the second member of Quaner formation is divided into complex channel,single channel and accretion body in the channel,and Yangdachengzi reservoir is divided into channel,core beach,point dam,point dam inner side accretion body and other configuration elements,and the seepage barrier relations of different configuration interfaces are summarized.On this basis,the second member of the spring is divided into four types of flow units by cluster method,and their respective criteria are obtained by integrating porosity,permeability,flow stratification index(FZI),shale content and other parameters.Combining with the dynamic production data and dividing the flow unit relationship,it shows that the flow unit can guide the waterflood development,indicate the distribution of remaining oil and the production effect of sand body.