Research on reservoir bed heterogeneity,interlayers and seal layers and controlling factors of 2+3 sands of upper second member,Shahejie Formation,in the west of the Pucheng Oilfield

作     者：Zhang Wei Zhang Jinliang Xie Jun Zhang Wei1,Zhang Jinliang1,2and Xie Jun1 1 College of Marine Geo-Science,Ocean University of China,Qingdao,Shandong 266100,China 2 College of Resource Science and Technology,Beijing Normal Unicersity,Beijing 100875,China

作者机构：College of Marine Geo-Science Ocean University of China Qingdao Shandong 266100 China College of Resource Science and Technology Beijing Normal Unicersity Beijing 100875 China 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2008年第5卷第2期

页      面：135-144页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

主　　题：Sedimentary system terminal fan reservoir bed heterogeneity interlayer and seal layer 

摘      要：Terminal fans have formed the sedimentary system of the 2＋3 sands of the upper second member, Shahejie formation in the west of the Pucheng Oilfield, Bohai Bay Basin, East China. Based on well logging data and physical properties of the reservoir beds, the 2＋3 sands were divided into 16 sublayers. The heterogeneity of reservoir beds and distribution of interlayers and seal layers in the 2＋3 sands were investigated. The intra-layer heterogeneity and inter-layer heterogeneity primarily belong to the severely heterogeneous classification. The spatial differentiation of sedimentary microfacies resulted in a change of reservoir bed heterogeneity, strong in the middle and southern parts, weak in the northern part. Spatial distribution of interlayers and seal layers is dominated by sedimentary microfacies, and they are thick in north-eastern and middle parts, thin in the south-western part.