文献类型：期刊文献

中文题名：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

第一作者：Yang Zhang

机构：[1]Faculty of Petroleum,China University of Petroleum(Beijing),Karamay Campus,Karamay,Xinjiang,834000,China;[2]College of Resources and Environmental Engineering,Guizhou Institute of Technology,Guiyang,Guizhou,550003,China;[3]Experiment Testing Institute,PetroChina Xinjiang Oilfield Company,Karamay,Xinjiang,834000,China;[4]Research Institute of Exploration and Development,PetroChina Xinjiang Oilfield Company,Karamay,Xinjiang,834000,China;[5]School of Geosciences,China University of Petroleum,Qingdao,Shandong,266580,China;[6]Zhuangxi Oil Production Plant,Sinopec Shengli Oilfield Company,Dongying,Shandong,257000,China

第一机构：Faculty of Petroleum,China University of Petroleum(Beijing),Karamay Campus,Karamay,Xinjiang,834000,China

年份：2022

卷号：19

期号：1

起止页码：58-73

中文期刊名：石油科学：英文版

外文期刊名：Petroleum Science

收录：Scopus;CSCD:【CSCD2021_2022】；PubMed;

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

语种：英文

中文关键词：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 deltas.The 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 sands.For 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 stitching.However,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 isolation.When water level stays stable,the greater the distance from the source area the greater the disaggregation ratio of a single sand body.At the same distance from the source area,higher water level tends to result in greater disaggregation ratio of a single sand body.