The influence of water level changes on sand bodies at river-dominated delta fronts:The Gubei Sag,Bohai Bay Basin

作     者：Yang Zhang Zheng Shi Ji Li Jun-Wei Wang Bao-Liang Yang Ji-Guo Jiang Yang Zhang;Zheng Shi;Ji Li;Jun-Wei Wang;Bao-Liang Yang;Ji-Guo Jiang

作者机构：Faculty of PetroleumChina University of Petroleum(Beijing)Karamay CampusKaramayXinjiang834000China College of Resources and Environmental EngineeringGuizhou Institute of TechnologyGuiyangGuizhou550003China Experiment Testing InstitutePetroChina Xinjiang Oilfield CompanyKaramayXinjiang834000China Research Institute of Exploration and DevelopmentPetroChina Xinjiang Oilfield CompanyKaramayXinjiang834000China School of GeosciencesChina University of PetroleumQingdaoShandong266580China Zhuangxi Oil Production PlantSinopec Shengli Oilfield CompanyDongyingShandong257000China 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2022年第19卷第1期

页      面：58-73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] 

基　　金：supported by Research Foundation of China University of Petroleum-Beijing at Karamay(No.XQZX20210004) 

主　　题：Water level changes River-dominated delta Delta front sandbodies Paleogene Shahejie Formation Gubei Sag of Bohai Bay Basin 

摘      要：Changes in water level are one of the important factors controlling the constructive characteristics of *** paper studies the influence of water level changes on sand bodies in the third member of the Shahejie Formation(Es3)on the gentle southern slope of the Gubei Sag,Bohai Bay Basin and draw some conclusions that,for complex sand bodies,with the increase in water level the distributary channels bifurcate frequently,from a simple branching shape to a network shape along with the increase in the development of crevasse splays,mouth bars and sheet *** single sand bodies,with an increase in water level in the slope zone of the lake basin close to the source area,the superimposition style transitioned from vertical cutting-stacking and lateral isolation to vertical stitching,isolation and lateral ***,in the central zone of the lake basin far from the source area,the superimposition style transitioned from vertical stitching and lateral stitching to vertical isolation and lateral *** water level stays stable,the greater the distance from the source area the greater the disaggregation ratio of a single sand *** the same distance from the source area,higher water level tends to result in greater disaggregation ratio of a single sand body.