窄薄砂体储层构型特征及对剩余油分布的影响  

RESERVOIR CONFIGURATION FEATURES OF NARROW THIN SAND BODY AND ITS INFLUENCE IN REMAINING OIL DISTRIBUTION

作　　者：孙廷彬[1] 林承焰[1] 田敏[1] 李士江[2] 向传刚[2] 

机构地区：[1]中国石油大学(华东),山东青岛266555 [2]大庆油田有限责任公司第七采油厂,黑龙江大庆163517

出　　处：《矿物岩石》2013年第2期94-101,共8页Mineralogy and Petrology

基　　金：国家科技重大专项"复杂油气藏精细表征及剩余油分析预测"(2011ZX05009-003);"中央高校基本科研业务费专项资金资助项目(11CX06005A)"

摘　　要：通过钻井取心精细描述和对子井对比分析,研究葡北油田萄Ⅰ油组窄、薄砂体的储层构型,并利用检查井岩心分析化验资料和水淹解释资料分析构型对剩余油分布的影响。结果表明,研究区水下河道砂体可划分为7个构型级别,其构型模式呈现为一种垂向加积模式。7级和6级构型界面处发育稳定隔层,垂向上对注水形成层间分割,控制了油层整体注水开发效果和剩余油分布的层间差异性。5级和4级构型界面处发育不稳定物性夹层,影响了层内水淹特征和剩余油分布,是剩余油挖潜的研究重点。工区实例表明,储层构型分析在剩余油挖潜中有重要指导意义。Study of reservoir configuration of the narrow thin sand body of PU I oil layer in the Pubei oil field was carried out through fine description of drilling cores and comparative analysis of pair wells,and the influence of reservoir configuration on the distribution of remaining oil was analyzed through the check of drilling well data and interpretation of flooding.In fact,the reservoir configuration can be divided into seven levels,characteristic of a vertical accretion mode.The interfaces of level 7and level 6determine both the development effect and the differences of the distribution of remaining oil between layers.While the interfaces of level 5and level 4have an important implication for the development effect and the distribution of remaining oil in the layer,and is the most important potential target for the study of remaining oil.Therefore,the analysis of reservoir configuration is of important significance in the study of production of remaining oil.

关 键 词：水下分流河道 储层构型 垂向加积 剩余油挖潜 

分 类 号：TE42[石油与天然气工程—油气田开发工程]