A world-class source rock in southern China formed during the periods from Katian to Rhuddanian: Biostratigraphic distribution, depositional model and shale gas potential

doi:10.1016/j.gr.2023.10.007

NIGPAS OpenIR

	A world-class source rock in southern China formed during the periods from Katian to Rhuddanian: Biostratigraphic distribution, depositional model and shale gas potential
通讯作者	Jin, Zhijun(jinzj1957@pku.edu.cn)
	Nie, Haikuan 1,2,3; Li, Pei 1,2,3; Chen, Qing4,5 ; Jin, Zhijun 3,6; Liu, Quanyou 6; Dang, Wei 7; Chen, Qian 3; Ding, Jianghui 8; Zhai, Changbo 1,2,3
	2024-02-01
发表期刊	GONDWANA RESEARCH
ISSN	1342-937X
卷号	126 页码:267-288
摘要	Typical outcrops and shale gas wells from the upper Ordovician (Katian and Hirnantian) Wufeng Formation to the lower Silurian (Rhuddanian) Longmaxi Formation in the Sichuan Basin of southern China were selected to investigate the shale quality and shale gas potential. The chronostratigraphy was studied based on the graptolite biozones and well logging. The sedimentary environment, depositional facies, biostratigraphic distribution, depositional model and lithological characteristics were characterized. Organic-rich shale primarily developed in the late Katian to the early-middle Rhuddanian. Two organic-rich shale depocentres were identified in the southern and eastern-north-eastern Sichuan Basin. The spatial distribution of organic-rich shale of different graptolite biozones was determined and showed gradual migration northwest. The depocentre of the Dicellograptus complexus Biozone to the Cystograptus vesiculosus Biozone was controlled by paleo-uplift and a submarine high. The black shale typically lacks some graptolite biozones, and even if it is fully developed, the thickness of organic-rich shale is thin and has a poor shale gas source potential. The control effect of the graptolite biozone on shale-gasenrichment helps to evaluate the shale-gas-enriched and productive intervals accurately. This study characterises the organic-rich shale distribution in the Sichuan Basin and helps in assessing organicrich shale and identifying sweet spots of shale gas potential. (c) 2023 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
关键词	Organic-rich shale Graptolite biozone Shale gas Longmaxi Formation Lower Silurian Sichuan Basin
DOI	10.1016/j.gr.2023.10.007
收录类别	SCI
语种	英语
关键词[WOS]	SILURIAN LONGMAXI FORMATION ; ORDOVICIAN WUFENG FORMATION ; SICHUAN BASIN ; YANGTZE REGION ; DISTRIBUTION PATTERN ; NORTH-AFRICA ; RICH SHALES ; HOT SHALES ; EXPLORATION ; GRAPTOLITE
资助项目	National Natural Science Foundation of China[42130803] ; National Natural Science Foundation of China[42202175] ; National Natural Science Foundation of China[41872124]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001098928700001
项目资助者	National Natural Science Foundation of China
出版者	ELSEVIER
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/43109
专题	中国科学院南京地质古生物研究所
通讯作者	Jin, Zhijun
作者单位	1.State Key Lab Shale Oil & Gas Enrichment Mech & Ef, Beijing 102206, Peoples R China 2.SINOPEC, Sinopec Key Lab Shale Oil & Gas Explorat & Prod, Beijing 102206, Peoples R China 3.SINOPEC, Petr Explorat & Prod Res Inst, Beijing 102206, Peoples R China 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China 6.Peking Univ, Inst Energy, Beijing 100871, Peoples R China 7.Xian Shiyou Univ, Sch Earth Sci & Engn, Xian 710065, Peoples R China 8.CNPC Engn Technol Res & Dev Co Ltd, Beijing 102206, Peoples R China
推荐引用方式 GB/T 7714	Nie, Haikuan,Li, Pei,Chen, Qing,et al. A world-class source rock in southern China formed during the periods from Katian to Rhuddanian: Biostratigraphic distribution, depositional model and shale gas potential[J]. GONDWANA RESEARCH,2024,126:267-288.
APA	Nie, Haikuan.,Li, Pei.,Chen, Qing.,Jin, Zhijun.,Liu, Quanyou.,...&Zhai, Changbo.(2024).A world-class source rock in southern China formed during the periods from Katian to Rhuddanian: Biostratigraphic distribution, depositional model and shale gas potential.GONDWANA RESEARCH,126,267-288.
MLA	Nie, Haikuan,et al."A world-class source rock in southern China formed during the periods from Katian to Rhuddanian: Biostratigraphic distribution, depositional model and shale gas potential".GONDWANA RESEARCH 126(2024):267-288.