河流相储层夹层精细表征及控油作用研究  

Accurate Characterization of Fluvial Facies Interbed and Its Control on Remaining Oil

作　　者：王延忠[1,2] 

机构地区：[1]中国石油大学(北京)地球科学学院,北京102249 [2]中石化胜利油田分公司地质科学研究院,山东东营257015

出　　处：《石油天然气学报》2011年第10期43-47,165-166,共5页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2011ZX0511)

摘　　要：依据岩心资料与测井资料,研究了井点层内夹层的分类及其成因,建立了层内夹层岩电识别标准。根据沉积环境的差异,将夹层展布模式划分为连续型和随机型,研究了连续型的稳定夹层与随机型的不稳定夹层的分布规律,分别建立了这两类夹层井间分布的预测流程和方法,形成了井间夹层的定量表征技术。在此基础之上,采用不同的模拟方法进行夹层三维空间模拟与预测,在数值模拟中真实地反映了储层内部不同类型夹层的渗流特征;以密闭取心及考虑夹层的精细数值模拟为手段,定量刻画了不同类型夹层控制的剩余油富集特征,为针对性的剩余油挖潜提供了依据。Classification and genesis of interbed were studied according to core data and well logging data.Lith-electricity recognition criteria of well interbed were built.Distributive pattern of interbed was divided into sequence type and random type based on the difference of sedimentary environment.Flow chart and method of interwell distribution prediction were established.Quantitative descriptive technique of interwell interbeds was formed.Three-dimensional simulation and prediction are carried our by using different simulation methods on the basis stated above,in which different percolation characters inside the reservoirs are reflected,methods for pressure coring and considering the fine reservoir description are used,remaining oil enriched characters controlled by different interbeds are studied quantitatively,it provides a basis for tapping the potential of remaining oil.

关 键 词：河流相 夹层 表征 三维建模 剩余油 

分 类 号：P618.13[天文地球—矿床学]