Development and Hotspots of Sedimentary Response of Glutenite in the Offshore Bohai Bay Basin

被引：0
|
作者：
Liu Q. [1 ,2 ]
Zhu H. [1 ,2 ]
Du X. [3 ]
Xue Y. [3 ]
Yang X. [1 ,2 ]
Yang H. [3 ]
Shi W. [3 ]
Zhou Z. [1 ,2 ]
机构：
[1] Key Laboratory of Tectonics and Petroleum Resources of the Ministry of Education, China University of Geosciences, Wuhan
[2] Faculty of Earth Resources, China University of Geosciences, Wuhan
[3] Tianjin Branch of China National Offshore Oil Corporation Limited, Tianjin
来源：
Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences | 2020年 / 45卷 / 05期
关键词：
Eocene steep slope; Genetic mechanism; Glutenite; Miocene gentle slope; Sedimentary geology; Sedimentary response; The offshore Bohai Bay basin;
D O I：
10.3799/dqkx.2020.010
中图分类号：
学科分类号：
摘要：
With the increasing global energy consumption and deepening glutenite oil and gas reservoirs study, glutenite reservoirs have become a new field of oil and gas exploration, especially since the significant discoveries of conglomeratic reservoirs in the Mahu area, Junggar basin of Xinjiang, and integrated condensate gas field of BZ19-6 in the offshore Bohai Bay basin. At present, the research on the sedimentary response of glutenite is concentrated on the background of steep slope or orogenic belt, focusing on the analysis of the forms, structural styles, controlling factors, depositional modes and differences of alluvial fan, fan delta, nearshore subaqueous fan and sublacustrine fan systems, but there are multiple explanations for the genetic mechanism. Glutenites in the offshore Bohai Bay basin are mainly developed in Eocene steep slope background and early Miocene gentle slope background. Among them, Eocene glutenite presents a near-source accumulation along the fault steep slope belt, and the hotspots focus on its structure identification and period characterization, so as to accurately predict the spatial and temporal distribution of underground glutenite reservoirs. However, at the transition interface of the early Miocene, a set of glutenite is widely distributed and accompanied by magmatic activities. The difficulty lies in defining the response relationship between sedimentological and chronological information of glutenite and the evolution of tectonic plates, and determining the genetic mechanism and development mode of large-scale glutenite reservoirs distribution. Sedimentary response research direction of glutenite will be based on the principles and standard of lithofacies subdivision, to deepen its relationship with regional tectonic events, analyze the infilling processes quantitatively and depict its trap target of industrialization. These results would not only offer better understanding of the formation and evolution of Cenozoic Bohai Bay basin, but also facilitate the exploration of the middle and large-scale oil and gas fields with the type of glutenite in the offshore Bohai Bay basin. © 2020, Editorial Department of Earth Science. All right reserved.
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页码：1676 / 1705
页数：29
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