中国科学院南京地质古生物研究所机构知识库

QQ客服 官方微博 反馈留言

	Unveiling the Oldest Industrial Shale Gas Reservoir: Insights for the Enrichment Pattern and Exploration Direction of Lower Cambrian Shale Gas in the Sichuan Basin
通讯作者	Zhao, Zhengfu([email protected]) ; Jing, Zhenhua([email protected])
	Zou, Caineng1; Zhao, Zhengfu2,3; Pan, Songqi4; Yin, Jia1,5; Lu, Guanwen1; Fu, Fangliang1,5; Yuan, Ming1; Liu, Hanlin1; Zhang, Guosheng1; Luo, Cui6
	2024-11-01
发表期刊	ENGINEERING
ISSN	2095-8099
卷号	42页码:278-294
摘要	The lower Cambrian Qiongzhusi (C1q) shale in the Sichuan Basin, formerly considered a source rock, recently achieved high gas production (7.388 x 105 m3 d-1) from well Z201 in the Deyang-Anyue rift trough (DART), marking an exploration breakthrough of the world's oldest industrial shale gas reservoir. However, the shale gas enrichment mechanism within the DART is not fully understood. This study reviews the formation of the Qiongzhusi shale gas reservoirs within the DART by comparing them with cotemporaneous deposits outside the DART, and several findings are presented. The gas production interval was correlated with the main phase of the Cambrian explosion (lower Cambrian stage 3). In the early Cambrian ecosystem, dominant animals likely accelerated the settling rates of organic matter (OM) in the upper 1st member of C1q (C1q12) by feeding on small planktonic organisms and producing larger organic fragments and fecal pellets. High primary productivity and euxinic conditions contributed to OM enrichment in the lower 1st member of C1q (C1q11). Additionally, shale reservoirs inside the DART demonstrated better properties than those outside in terms of thickness, brittle minerals, gas content, and porosity. In particular, the abundant OM pores inside the DART facilitated shale gas enrichment, whereas the higher thermal maturity of the shales outside the DART possibly led to the graphitization and collapse of some OM pores. Meanwhile, the overpressure of highproduction wells inside the DART generally reflects better shale gas preservation, benefiting from the shale's self-sealing nature, "upper capping and lower plugging" configuration, and limited faults and microfractures. Considering these insights, we introduced a "ternary enrichment" model for the Qiongzhusi shale gas. Although the current high gas production of Z201 was found at the reservoir 3, two additional reservoirs were identified with significant potential, thus suggesting a "multilayer stereoscopic development" strategy in future shale gas exploration within the DART. (c) 2024 THE AUTHORS. Published by Elsevier LTD on behalf of Chinese Academy of Engineering and Higher Education Press Limited Company. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	Ultradeep shale gas Sichuan Basin Qiongzhusi shale Deyang-Anyue rift trough Well Z201 Ternary enrichment Multilayer stereoscopic development
DOI	10.1016/j.eng.2024.03.007
收录类别	SCI
语种	英语
关键词[WOS]	ORGANIC-MATTER ; QIONGZHUSI FORMATION ; GEOLOGICAL CHARACTERISTICS ; YANGTZE PLATFORM ; MARINE SHALE ; EVOLUTION ; ACCUMULATION ; HYDROCARBON ; POROSITY ; CARBON
资助项目	National Natural Science Foundation of China[U23B20155] ; National Natural Science Foundation of China[42303004] ; China Postdoctoral Science Foundation[2023M730038] ; Science and Technology Research Project for the China National Petroleum Corporation[2021DJ1802] ; Science and Technology Research Project for the China National Petroleum Corporation[2021YJCQ03] ; National Postdoctoral Researcher Program of China[GZC20233111]
WOS研究方向	Engineering
WOS类目	Engineering, Multidisciplinary
WOS记录号	WOS:001366625900001
项目资助者	National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Science and Technology Research Project for the China National Petroleum Corporation ; National Postdoctoral Researcher Program 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/332004/44621
专题	中国科学院南京地质古生物研究所
通讯作者	Zhao, Zhengfu; Jing, Zhenhua
作者单位	1.PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China 2.China Univ Min & Technol, Coll Geosci & Survey Engn, Beijing 100083, Peoples R China 3.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 4.PetroChina Shenzhen New Energy Res Inst, Shenzhen 518054, Peoples R China 5.China Univ Geosci Beijing, Sch Energy & Resource, Beijing 100083, Peoples R China 6.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Zou, Caineng,Zhao, Zhengfu,Pan, Songqi,et al. Unveiling the Oldest Industrial Shale Gas Reservoir: Insights for the Enrichment Pattern and Exploration Direction of Lower Cambrian Shale Gas in the Sichuan Basin[J]. ENGINEERING,2024,42:278-294.
APA	Zou, Caineng.,Zhao, Zhengfu.,Pan, Songqi.,Yin, Jia.,Lu, Guanwen.,...&Jing, Zhenhua.(2024).Unveiling the Oldest Industrial Shale Gas Reservoir: Insights for the Enrichment Pattern and Exploration Direction of Lower Cambrian Shale Gas in the Sichuan Basin.ENGINEERING,42,278-294.
MLA	Zou, Caineng,et al."Unveiling the Oldest Industrial Shale Gas Reservoir: Insights for the Enrichment Pattern and Exploration Direction of Lower Cambrian Shale Gas in the Sichuan Basin".ENGINEERING 42(2024):278-294.

条目包含的文件
条目无相关文件。

内 容：

标 题：

内 容：