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作 者:程东风[1] 耿秋红[1] 贾福东[1] 杨柳[1]
机构地区:[1]中原油田分公司采油二厂
出 处:《钻采工艺》2013年第3期62-65,8,共4页Drilling & Production Technology
基 金:国家油气重大专项(编号:2008ZX05010-003)资助
摘 要:低渗透油藏储层物性解释是在综合研究岩心、分析化验、测试及测井等资料的基础上,以储层地质、岩石物理、测井等基础理论,采用岩心刻度测井的方法,建立了储层孔隙度、渗透率及含油饱和度等储层物性参数解释模型。并总结出一套地质和地球物理的综合研究方法:以单层试油资料为依据,对岩心资料进行充分试验和研究,制定出有效厚度的岩性、物性、含油性下限标准,并以测井解释为手段,应用测井定位、定量解释方法,依据孔隙度和渗透率参数对储层进行定量划分。确定了孔隙度大于10.5%和渗透率大于0.7mD的层为储层,否则为干层。含油饱和度大于或等于41%的为油层,小于30%的水层,介于它们之间的为油水同层。The interpretation model of low permeability reservoir physical property was established based on the data of core analysis, testing and logging, and using the core scale logging method. And a set of geological and geophysical comprehensive research methods were summed up. Based on the single layer production test materials, and studying the core data, the lower limit standard of reservoir effective thickness of lithology, physical property and oiliness was determined. At the same time, the reservoir was classified by using the logging orientation and quantitative interpretation method based on the porosity and permeability parameters. When porosity and permeability were more than 10.5% and 0.7 mD respectively, the formation belong to reservoir, or for dry layer. When oil saturation was more than or equal to 41%, the formation was oil layer, that was less than 30%, the layer was water layer, between 30% and 41%, was oil-water layer.
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