【摘要】 因储层的复模态孔隙结构,并受山麓洪积相带、成岩压实及后生成岩变化的影响,克拉玛依油田七区砾岩储层具有低孔隙度、低渗透率和强非均质性的特点。利用灰色系统理论研究了测井、钻井、取心及有关地质资料,分析了复模态结构砾岩储层的储能参数、储量参数、油层分布、规模、连片性、钻遇率、渗透率及其非均质性特征,在七区克拉玛依组砾岩储层建立起了综合评价参数标准,对非均质砾岩储层进行了综合评价和分类描述。以不同的角度分析并阐明了该区非均质砾岩储层静态质量,从宏观上认识和评价微观结构特殊的砾岩油藏及其非均质性,有效地评价并指出了该区砾岩储层进一步开发的重点井区、层位及类型,为油田开发决策和增产措施提供了相应的依据。更多还原

【Abstract】 Because of the complex mode pore structure,and the influences of piedmont pluvial facies tract,diagenetic compaction and epidiagenesis,the conglomerate reservoir of 7th Tract in Karamay Oilfield is characterized by low porosity,low permeability and strong heterogeneity.Studied are the information of well logging,drilling,coring and relevant geology by gray system theory,and analyzed are the storage factor,reserves parameter,reservoir distribution,extend,connectivity,drilling meeting ratio,and permeability of the complex mode conglomerate reservoir and their heterogeneous feature,a comprehensive evaluation parameter criterions of conglomerate reservoir of 7th Tract of Karamay group are established for comprehensive evaluation and classified description of the heterogeneous conglomerate reservoir.Thus,this method analyzes and illustrates the static quality of heterogeneous conglomerate reservoir with a different angle of view,in which the special microcosmic construction and heterogeneity of the conglomerate reservoir are recognized and evaluated macroscopically.By the method,some stressed well tracts,strata and their types of the conglomerate reservoir may be effectively evaluated and pointed out for further exploitation in the tract.The method provides a foundation for guiding exploitation strategy of the oilfield and for taking stimulation measures.更多还原