文献类型：期刊文献

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

作者：Zhang, Yang Shi, Zheng Li, Ji Wang, Jun-Wei Yang, Bao-Liang Jiang, Ji-Guo

第一作者：Zhang, Yang

通信作者：Shi, Z[1]

机构：[1]China Univ Petr, Fac Petr, Karamay Campus, Karamay 834000, Xinjiang, Peoples R China;[2]Guizhou Inst Technol, Coll Resources & Environm Engn, Guiyang 550003, Guizhou, Peoples R China;[3]PetroChina Xinjiang Oilfield Co, Expt Testing Inst, Karamay 834000, Xinjiang, Peoples R China;[4]PetroChina Xinjiang Oilfield Co, Res Inst Explorat & Dev, Karamay 834000, Xinjiang, Peoples R China;[5]China Univ Petr, Sch Geosci, Qingdao 266580, Shandong, Peoples R China;[6]Sinopec Shengli Oilfield Co, Zhuangxi Oil Prod Plant, Dongying 257000, Shandong, Peoples R China

第一机构：China Univ Petr, Fac Petr, Karamay Campus, Karamay 834000, Xinjiang, Peoples R China

通信机构：corresponding author), Guizhou Inst Technol, Coll Resources & Environm Engn, Guiyang 550003, Guizhou, Peoples R China.|贵州理工学院资源与环境工程学院;贵州理工学院;

年份：2022

卷号：19

期号：1

起止页码：58-73

外文期刊名：PETROLEUM SCIENCE

收录：;EI(收录号：20231113725376);Scopus(收录号：2-s2.0-85123856105);WOS:【SCI-EXPANDED(收录号:WOS:000798182200007)】；

基金：The authors are grateful to Shengli Oil Company of Sinopec Group for their support in completing the research. This work was supported by Research Foundation of China University of Petroleum-Beijing at Karamay (No. XQZX20210004).

语种：英文

外文关键词：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. (C) 2021 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.