Key factors of marine shale conductivity in southern China-Part I: The influence factors other than porosity

doi:10.1016/j.petrol.2021.108698

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 深海科学研究部 > 深海地球物理与资源研究室

	Key factors of marine shale conductivity in southern China-Part I: The influence factors other than porosity
	Zhu, Linqi 2,4,6; Ma, Yongsheng 3; Cai, Jianchao 1; Zhang, Chaomo 5; Wu, Shiguo 2,4,6; Zhou, Xueqing 5
刊名	JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
	2021-10-01
卷号	205 页码:20
关键词	Shale gas Conductivity Low-porosity systems Resistivity logging Mineral composition Organic matter Elemental
ISSN号	0920-4105
DOI	10.1016/j.petrol.2021.108698
英文摘要	The complicated response mechanism of shale gas requires that a systematic pilot study is conducted on the influences of resistivity log responses to help with subsequent experimental design, physical derivations and resistivity simulations. The purpose of this research is to clarify the main controlling factors of the resistivity log responses and their semi-quantitative relationship in certain marine shale gas formations. Comprehensive analyses on large core test datasets, including mineralogical, petrological, geochemical and other data, from the Longmaxi-Wufeng Formation and the corresponding resistivity logging curves are carried out in 4 shale gas areas. This research indicates that in low-porosity systems, the mineral composition directly impacts the resistivity. Carbonates with large intergranular pores and even intragranular pores increase the resistivity. The hydrophilic nature of clay decreases the resistivity. When organic matter is not carbonized, the organic matter and biosilica will further increase the resistivity. Pyrite layers will cause a large drop in resistivity (to less than 5 omega m). The resistivity is lower where organic matter carbonization has occurred in the studied reservoir. Mineral components, especially clay minerals and organic matter, are the main controlling factors of the conductivity of low-porosity systems. In addition, we propose that elemental logging can be used to characterize the comprehensive effect of low-porosity s systems on the resistivity of the reservoir and can accurately reflect the resistivity. These results will help to develop future studies on the relationship between the electrical conductivity and saturation of shale gas rocks, which is of great significance.
资助项目	Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology[MGQNLM-KF202004] ; National Key Research and Development Program of China[2019YFC0312301] ; Chinese Academy of Sciences-Special Research Assistant Project ; Open Fund of Key Laboratory of Exploration Technologies for Oil and Gas Resources (Yangtze University), Ministry of Education[K2021-08] ; Open Fund of Key Laboratory of Exploration Technologies for Oil and Gas Resources (Yangtze University), Ministry of Education[K2021-03]
WOS关键词	NUCLEAR-MAGNETIC-RESONANCE ; SICHUAN BASIN ; ORGANIC-MATTER ; ELECTRICAL-RESISTIVITY ; NUMERICAL-SIMULATION ; LONGMAXI FORMATIONS ; WATER SATURATION ; BLACK SHALES ; GAS SHALE ; WELL LOGS
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000669036800001
资助机构	Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; National Key Research and Development Program of China ; Chinese Academy of Sciences-Special Research Assistant Project ; Open Fund of Key Laboratory of Exploration Technologies for Oil and Gas Resources (Yangtze University), Ministry of Education
内容类型	期刊论文
源URL	[http://ir.idsse.ac.cn/handle/183446/8754]
专题	深海科学研究部_深海地球物理与资源研究室
通讯作者	Zhu, Linqi
作者单位	1.China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 3.China Petr & Chem Corp, Beijing 100728, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Peoples R China 5.Yangtze Univ, Key Lab Explorat Technol Oil & Gas Resources, Minist Educ, Wuhan 430100, Peoples R China 6.Chinese Acad Sci, Inst Deep Sea Sci & Engn, 28 Luhuitou Rd, Sanya 572000, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Linqi,Ma, Yongsheng,Cai, Jianchao,et al. Key factors of marine shale conductivity in southern China-Part I: The influence factors other than porosity[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2021,205:20.
APA	Zhu, Linqi,Ma, Yongsheng,Cai, Jianchao,Zhang, Chaomo,Wu, Shiguo,&Zhou, Xueqing.(2021).Key factors of marine shale conductivity in southern China-Part I: The influence factors other than porosity.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,205,20.
MLA	Zhu, Linqi,et al."Key factors of marine shale conductivity in southern China-Part I: The influence factors other than porosity".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 205(2021):20.