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  4. 岩石圈演化国家重点实验室
Relationship Between Electrical Properties and Sedimentary Environment of the Longmaxi Formation Shale, Southern Sichuan

文献类型：期刊论文

作者Yang Kai5; Zhang Bing4,5; Wang Xuben4,5; He Lanfang3; Yang Hongyu5; Wang Pengwan2; Tang Jialin5; Deng Jixin5; Zhang Cong1
刊名ACTA GEOLOGICA SINICA-ENGLISH EDITION
出版日期2020-10-01
卷号94期号:5页码:1531-1546
关键词shale gas exploration quartz total organic carbon lithofacies electromagnetic method Sichuan basin
ISSN号1000-9515
DOI10.1111/1755-6724.14401
英文摘要The Lower Silurian Longmaxi Formation in the south of Sichuan is a key player in the exploration and development of shale gas in China. Due to a highly complex topographic area, electromagnetic methods (EM) become important exploration means in this area. Many studies have been conducted on the shale mineral composition and electrical properties of shale, however, the correlation between sedimentary environments and the electrical properties of shale remain poorly understood. The electrical properties and sedimentary environment of the organic-rich shale of the Longmaxi Formation have been studied by means of X-ray diffraction, organic geochemistry, scanning electron microscopy and complex resistivity measurements. The discovered high quartz content of the Longmaxi Formation shale results in low resistivity. Deep-water shelf biogenic quartz contributes lower resistivity more than that of shallow-water terrigenous quartz. The deep-water anoxic and organic sedimentary environment led to major enrichment of pyrite, leading to a high polarization effect in shale. We present the correlation between the lithofacies types and electrical properties of Longmaxi Formation. The mixed siliceous shale lithofacies is the most favorable among the three lithofacies, which is characterized by high total organic carbon (TOC) content, high brittleness mineral content, high polarization and low resistivity ("three high and one low"). This feature is an effective identification of shale gas reservoirs by electromagnetic prospecting. Our study can provide constraints on electrical parameters of rocks for electromagnetic "sweet spot" exploration of shale gas, and so this has important geological significance to shale gas exploration and development.
WOS关键词ORGANIC-MATTER ACCUMULATION ; GAS ACCUMULATION ; DEPOSITIONAL ENVIRONMENT ; CHINA IMPLICATIONS ; RICH SHALES ; EXPLORATION ; BASIN ; WUFENG ; QUARTZ ; ROCK
资助项目National Natural Science Foundation[41502111] ; National Natural Science Foundation[91755215] ; National Natural Science Foundation[U1262206] ; Unconventional Oil and Gas Geology Key Laboratory of China Geological Survey[DD20160170]
WOS研究方向Geology
语种英语
WOS记录号WOS:000585902600015
出版者WILEY
资助机构National Natural Science Foundation ; National Natural Science Foundation ; Unconventional Oil and Gas Geology Key Laboratory of China Geological Survey ; Unconventional Oil and Gas Geology Key Laboratory of China Geological Survey ; National Natural Science Foundation ; National Natural Science Foundation ; Unconventional Oil and Gas Geology Key Laboratory of China Geological Survey ; Unconventional Oil and Gas Geology Key Laboratory of China Geological Survey ; National Natural Science Foundation ; National Natural Science Foundation ; Unconventional Oil and Gas Geology Key Laboratory of China Geological Survey ; Unconventional Oil and Gas Geology Key Laboratory of China Geological Survey ; National Natural Science Foundation ; National Natural Science Foundation ; Unconventional Oil and Gas Geology Key Laboratory of China Geological Survey ; Unconventional Oil and Gas Geology Key Laboratory of China Geological Survey
源URL[http://ir.iggcas.ac.cn/handle/132A11/98698]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Zhang Bing
作者单位1.China Geol Survey, Key Lab Unconvent Petr Geol, Beijing 100083, Peoples R China
2.PetroChina Hangzhou Inst Petr Geol, Hangzhou 310023, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
4.Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610059, Peoples R China
5.Chengdu Univ Technol, Earth Explorat & Informat Technol Key Lab, Minist Educ, Chengdu 610059, Peoples R China
推荐引用方式
GB/T 7714		 Yang Kai,Zhang Bing,Wang Xuben,et al. Relationship Between Electrical Properties and Sedimentary Environment of the Longmaxi Formation Shale, Southern Sichuan[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2020,94(5):1531-1546.
APA Yang Kai.,Zhang Bing.,Wang Xuben.,He Lanfang.,Yang Hongyu.,...&Zhang Cong.(2020).Relationship Between Electrical Properties and Sedimentary Environment of the Longmaxi Formation Shale, Southern Sichuan.ACTA GEOLOGICA SINICA-ENGLISH EDITION,94(5),1531-1546.
MLA Yang Kai,et al."Relationship Between Electrical Properties and Sedimentary Environment of the Longmaxi Formation Shale, Southern Sichuan".ACTA GEOLOGICA SINICA-ENGLISH EDITION 94.5(2020):1531-1546.

入库方式： OAI收割

来源：地质与地球物理研究所

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