Effect of sedimentary environment on shale lithofacies in the lower third member of the Shahejie Formation, Zhanhua Sag, eastern China

doi:10.1190/INT-2017-0016.1

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院油气资源研究重点实验室

	Effect of sedimentary environment on shale lithofacies in the lower third member of the Shahejie Formation, Zhanhua Sag, eastern China
	Li, Tingwei 1,2; Jiang, Zhenxue 1,2; Xu, Chenlu 3; Yuan, Yuan 3; Wang, Pengfei 1,2; Liu, Guoheng 1; Zhang, Bo 1,2; Ning, Chuanxiang 1,2; Wang, Zhi 1,2
刊名	INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION
	2017-11-01
卷号	5 期号:4 页码:T487-T501
ISSN号	2324-8858
DOI	10.1190/INT-2017-0016.1
文献子类	Article
英文摘要	Research on shale lithofacies is important for shale oil and gas production. This study focused on the lower third member of the Shahejie Formation (Es-3(l)) in the Luo-69 well in the Zhanhua Sag, Jiyang Depression, Bohai Bay Basin, eastern China. Several methods, including thin section observations, total organic carbon (TOC) analysis, X-ray diffraction analysis, quantitative evaluations of minerals by scanning electron microscopy, major and trace-element analyses, and field emission-scanning electron microscopy, are used to investigate the effect of sedimentary environment on the type and distribution of shale lithofacies. Our research indicates that 36 types of shale lithofacies can be classified based on the TOC content, mineral composition, and sedimentary structure, of which five types are identified in the study area. The Es-3(l) shale has a high calcareousmineral content (average of 49.64%), low clay and siliceous minerals contents (averages of 19.54% and 19.02%, respectively), a high TOC content (average of 3.00 wt%), and well-developed horizontal bedding. The sedimentary environment during the deposition of the Es-3(l) shale in the Zhanhua Sag had a warm and moist climate, limited provenance, saline water, and strong reducibility. The sedimentary environment in the early stage had a drier climate, more limited provenance, higher salinity, and stronger reducibility than that in the later stage. Shale lithofacies can reflect a certain sedimentary environment and depositional process; similarly, a depositional environment controls the type and distribution of shale lithofacies. Due to the characteristics of the Es-3(l) sedimentary environment, organic-rich massive mixed shale, organic-rich bedded mixed-calcareous shale, organic-rich laminated calcareous shale, and organic-fair laminated calcareous shale are developed in the Es-3(l) formation from top to bottom.
WOS关键词	MISSISSIPPIAN BARNETT SHALE ; FORT-WORTH BASIN ; OCEANIC ANOXIC EVENT ; NORTH-CENTRAL TEXAS ; REDOX CONDITIONS ; TRACE-ELEMENTS ; SICHUAN BASIN ; GAS SYSTEMS ; GEOCHEMISTRY ; PORES
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SOC EXPLORATION GEOPHYSICISTS
WOS记录号	WOS:000412938100017
资助机构	National Basic Research Program of China (973 Project)(2014CB239105) ; National Basic Research Program of China (973 Project)(2014CB239105) ; National Basic Research Program of China (973 Project)(2014CB239105) ; National Basic Research Program of China (973 Project)(2014CB239105)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/61985]
专题	地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者	Li, Tingwei
作者单位	1.China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing, Peoples R China 2.China Univ Petr, Unconvent Nat Gas Res Inst, Beijing, Peoples R China 3.Chinese Acad Sci, Key Lab Petr Resource Res, Inst Geol & Geophys, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Tingwei,Jiang, Zhenxue,Xu, Chenlu,et al. Effect of sedimentary environment on shale lithofacies in the lower third member of the Shahejie Formation, Zhanhua Sag, eastern China[J]. INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION,2017,5(4):T487-T501.
APA	Li, Tingwei.,Jiang, Zhenxue.,Xu, Chenlu.,Yuan, Yuan.,Wang, Pengfei.,...&Wang, Zhi.(2017).Effect of sedimentary environment on shale lithofacies in the lower third member of the Shahejie Formation, Zhanhua Sag, eastern China.INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION,5(4),T487-T501.
MLA	Li, Tingwei,et al."Effect of sedimentary environment on shale lithofacies in the lower third member of the Shahejie Formation, Zhanhua Sag, eastern China".INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION 5.4(2017):T487-T501.