靖边气田盒8段储层特征及控制因素  

Reservoir characteristics and its controlling factors of H8 formation Jingbian gas field

作　　者：牛会玲[1] 谢润成[1] 戴建文 瞿子易[1] 金文辉[1] 

机构地区：[1]"油气藏地质及开发工程"国家重点实验室.成都理工大学,四川成都610059 [2]中国海洋石油(中国)有限公司深圳分公司

出　　处：《石油地质与工程》2010年第1期16-19,5-6,共4页Petroleum Geology and Engineering

摘　　要：鄂尔多斯盆地靖边气田中二叠系盒8段以岩屑砂岩和岩屑石英砂岩为主的储层分布广泛，横向分布较稳定，厚度为55-65m，为河流-三角洲沉积。储集空间类型以高岭石晶间孔-溶孔孔隙组合为主，发育少量的粒间孔、粒内溶孔、铸模孔和微裂缝，为典型的低孔、低渗储层。根据测井数据、岩心、铸体薄片、荧光照片及物性分析等资料，分析盒8段储层特征，指出沉积微相和成岩作用为研究区砂岩储层发育的主控因素，其中，成岩作用以具有建设性的溶蚀和蚀变作用和具有破坏性的机械压实作用为主。The reservoir of lithic sandstone and lithic quartz sandstone has been widely distributed in H8 formaiton of Jingbi-an field,Ordos basin,where transverse distribution is rela-tively stable with the thickness of 55～ 65 m,which belongs to river-delta sedimentary. The reservoir space type are dominated by kaolin intercrystalling hollows-corroded hollow composites,developed with small intergranular pores、inner-grain corroded hollows,mould pores and micro-fracture. It is typical low porosity and extremely low permeability reservoir. According to log data ,cores,cast thinning,fluorescence photoes and physical properties datum,this pa-per analyzes H8 formation reservoir characteristics and points out the main controlling factors of sandstone reservoirs development are sedimentary microfacies and diagenesis in this area. Of these,diagenesis is dominated by construc-tive dissolution,alteration and destructive mechanical compaction.

关 键 词：靖边气田 盒8段 砂岩 储层特征 主控因素 

分 类 号：TE112.221[石油与天然气工程—油气勘探]