鄂尔多斯盆地侏罗系延安组10段沉积相特征——以吴起地区为例  

Sedimentary Facies Characters of Jurassic Yan-10 Member in Ordos:An example of Wuqi Area

作　　者：仲米剑 郭清正 葛岩 Zhong Mijian;Guo Qingzheng;Ge Yan(CNOOC Energy Technology and Services-Engineering Technology Company,Tianjin 300452)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452

出　　处：《石化技术》2022年第2期174-175,共2页Petrochemical Industry Technology

摘　　要：以测井相分析为基础,开展吴起地区侏罗系延安组10段沉积相展布特征研究。吴起地区侏罗系延安组10段主要为辫状河沉积,发育辫状河道砂坝与河道间泛滥平原沉积。储层砂体的分布受沉积相带控制,垂向上砂体叠置分布,储层砂体较厚,累计厚度最多可达60m~70m。The article is based on the electro-facies analysis to develop the character of facies and sand distribution of Yan-10member.The study shows that the sedimentary environment of Jurassic Yan-10 member is major of braided river deposition,with the development of braided channel sandbar and flood plain deposition between the channel.The distribution of sandstone reservoir is controlled by facies,and the sand body of Yan-10 member overlays each other in vertical,which the thickness can reach 60-70 meters.

关 键 词：吴起地区 延安组 沉积相 砂体展布 

分 类 号：P618.13[天文地球—矿床学]