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以姬塬地区长6层岩心资料、各类测试资料及测井资料为基础,剖析研究区长6各小层的非均质性特征,并研究了其对含油性的影响。研究表明:长6油层组层内和层间非均质性整体呈中等,储层垂向上粒度的韵律性多样。层内夹层发育程度及渗透率非均质性对储层含油性的影响较弱,而储层的韵律性、层内层理的发育程度及物性的大小是储层含油性的重要因素,隔层对油气形成有效圈闭及聚集成藏具有一定的积极作用。
Based on the core data of 6 layers in the Jiyuan area, various types of test data and well logging data, the heterogeneity characteristics of the capitals in Cap 6 were analyzed and their effects on oil content were also studied. The results show that the inter-layer and inter-layer heterogeneity in the Chang 6 oil layer is generally medium and the vertical grain size of the reservoir is rhythmic and diverse. The influence of interlayer development degree and permeability heterogeneity on reservoir oil content is weak, but the reservoir rhythm, the development degree of bedding layer and the size of physical property are important factors of reservoir oil content. The formation of oil and gas formation effective trap and accumulation of accumulation has a positive effect.