鄂尔多斯盆地王家湾区长2油层组储层特征及评价  

Reservoirs Characteristics and Evaluation of Chang 2 Oil Layer in Wangjiawan Area,Ordos Basin

作　　者：吴立峰[1] 王导丽[1] 王彦龙[2] 李辉[2] 

机构地区：[1]西安石油大学油气资源学院,陕西西安710065 [2]延长油田股份有限公司,陕西延安717400

出　　处：《辽宁化工》2011年第4期371-374,共4页Liaoning Chemical Industry

基　　金："十一五"国家科技支撑计划项目;项目号:(2007BAB17B05)

摘　　要：在大量岩心、铸体薄片及物性等资料统计分析的基础上,对鄂尔多斯盆地王家湾区长2油层组储层的沉积学、岩石学、物性等特征及孔隙类型、孔隙结构等进行了深入研究,并对储层进行了分类评价。研究结果表明,研究区长2油层组岩性主要为细粒长石砂岩;储集层具有成分成熟度低、结构成熟度高的特点;孔隙类型主要为粒间孔隙、溶蚀孔隙,属于低孔~低渗和特低孔~特低渗储层。利用储层物性和孔隙结构参数将长2储层划分为4类储层,其中Ⅱ、Ⅲ类储层是研究区的主要储集层。Based on statistical analysis of cores,cast thin sections,physical properties etc.data,the sedimentology,petrologic characteristics,physical properties and porosity types,pore structure of Chang 2 oil layer in Wangjiawan,Ordos basin area were studied,and classification and evaluation of the reservoir were carried out.The result indicates that the lithology of Chang 2 oil layer is mainly fine grain arkose,characterized by low mineral maturity and high structure maturity,the reservoir space mainly includes intergranular pores and dissolved pores,The reservoir is low porosity-low permeability and extra-low porosity extra-low permeability.According to physical properties of the reservoir and pore structure parameters,Chang 2 reservoir is classified into four types.The type？ and type III reservoirs are main reservoirs.

关 键 词：储层 物性 评价 长2油层组 王家湾区 鄂尔多斯盆地 

分 类 号：TE122[石油与天然气工程—油气勘探]