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Petroleum Geology in Deepwater Settings in a Passive Continental Margin of a Marginal Sea: A Case Study from the South China Sea
投稿时间:2020-05-22  修订日期:2020-11-07  点此下载全文
引用本文:ZHANG Gongcheng,FENG Congjun,YAO Xingzong,JI Mo,YANG Haizhang,QU Hongjun,ZENG Qingbo,ZHAO Zhao,SUN Rui.2021.Petroleum Geology in Deepwater Settings in a Passive Continental Margin of a Marginal Sea: A Case Study from the South China Sea[J].ACTA GEOLOGICA SINICA(English edition),95(1):1~20
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DOI:10.1111/1755-6724.14621
作者单位E-mail
ZHANG Gongcheng 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China3 CNOOC Research Institute Co.,?Ltd.,Beijing 100028,China  
FENG Congjun 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China fengcj@nwu.edu.cn 
YAO Xingzong 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China  
JI Mo 3 CNOOC Research Institute Co.,?Ltd.,Beijing 100028,China  
YANG Haizhang 3 CNOOC Research Institute Co.,?Ltd.,Beijing 100028,China  
QU Hongjun 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China  
ZENG Qingbo 3 CNOOC Research Institute Co.,?Ltd.,Beijing 100028,China  
ZHAO Zhao 3 CNOOC Research Institute Co.,?Ltd.,Beijing 100028,China  
SUN Rui 3 CNOOC Research Institute Co.,?Ltd.,Beijing 100028,China  
 
Author NameAffiliationE-mail
ZHANG Gongcheng 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China3 CNOOC Research Institute Co.,?Ltd.,Beijing 100028,China  
FENG Congjun 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China fengcj@nwu.edu.cn 
YAO Xingzong 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China  
JI Mo 3 CNOOC Research Institute Co.,?Ltd.,Beijing 100028,China  
YANG Haizhang 3 CNOOC Research Institute Co.,?Ltd.,Beijing 100028,China  
QU Hongjun 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China  
ZENG Qingbo 3 CNOOC Research Institute Co.,?Ltd.,Beijing 100028,China  
ZHAO Zhao 3 CNOOC Research Institute Co.,?Ltd.,Beijing 100028,China  
SUN Rui 3 CNOOC Research Institute Co.,?Ltd.,Beijing 100028,China  
Abstract:Deepwater oil and gas exploration has become a global hotspot in recent years and the study of the deep waters of marginal seas is an important frontier research area. The South China Sea (SCS) is a typical marginal sea that includes Paleo SCS and New SCS tectonic cycles.The latter includes continental marginal rifting, intercontinental oceanic expansion and oceanic shrinking,which controlled the evolution of basins, and the generation,migration and accumulation of hydrocarbons in the deepwater basins on the continental margin of the northern SCS.In the Paleogene, the basins rifted along the margin of the continent and were filled mainly with sediments in marine-continental transitional environments.In the Neogene–Quaternary, due to thermal subsidence,neritic-abyssal facies sediments from the passive continental margin of the SCS mainly filled the basins.The source rocks include mainly Oligocene coal-bearing deltaic and marine mudstones, which were heated by multiple events with high geothermal temperature and terrestrial heat flow,resulting in the generation of gas and oil.The faults,diapirs and sandstones controlled the migration of hydrocarbons that accumulated principally in a large canyon channel,a continental deepwater fan,and a shelf-margin delta.
keywords:diapir,deepwater fan,gas-rich sag,hydrocarbon accumulation model,Wilson cycles,South China Sea
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