摘要
西南地区二叠系层序成因格架及储集体分布关系的研究表明，不同成因沉积盆地的层序内部构型及成因格架不同，其中储集体特征及分布亦各异。总体而言，该区二叠系层序格架中的有利储集体主要包括：①低水位体系域中的盆底斜坡扇、浪控三角洲砂体、河谷充填进积复合砂体、混屑浊积岩、冲积扇砂体、丘礁组合；②海侵体系域中的浅滩及障壁滩砂体、河口湾砂体、潮控三角洲砂体、扇三角洲砂体、丘礁滩组合、火山碎屑浊积岩、浊积扇及扇三角洲砂体；③高水位体系域中的河控三角洲、冲积扇河道砂体、扇三角洲砂体、钙屑重力流沉积、丘礁滩组合、滩坝砂体、白云岩；④与层序界面有关的岩溶储层，包括界面上的残积相、界面及下伏的岩溶角砾岩体系。
A research on the relationship between sequence genetic framework and reservoir distribution of the Permian system in Southwest China shows that the sequence framework of distinct genetic basins and their reservoir characteristics and distribution are quite different In the general, favorable reservoirs within the Permian sequence framework in Southwest China include mainly:(1)basin floor and slope fans, delta front, alluvial fan, valley fill, progradation complex, shoal bioherm reef complex, calcareous and mixed clastic turbidites in LST; (2)barrier beach, shoal, estuary, tide influenced delta, fan delta, turbidity fan, lag sediment, bioherm reef complex, pyroclastic turbidite in TST; (3)river and wave dominated delta, alluvial channel fan, fan delta, turbidity fan, terrigeneous and carbonate shoals, bioherm reef complex, calcareous clastic beach bioherm reef complex, calcareous clastic turbidite, and dolostone in HST; and (4)karst reservoir dominated by sequence boundary surface including overlying eluvial breccia complex and underlying karstic breccia system
出处
《江汉石油学院学报》
CAS
CSCD
北大核心
1999年第1期1-4,共4页
Journal of Jianghan Petroleum Institute
基金
中国博士后基金
关键词
层序地层学
储集层
二叠纪
西南地区
sequence stratigraphy
reservoir
Permian period
southwest China
