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Continental shale pore structure characteristics and their controlling factors: A case study from the lower third member of the Shahejie Formation, Zhanhua Sag, Eastern China

文献类型：期刊论文

作者Li, Tingwei1,2; Jiang, Zhenxue1,2; Li, Zhuo1,2; Wang, Pengfei1,2; Xu, Chenlu3; Liu, Guoheng1,4; Su, Siyuan1,2; Ning, Chuanxiang1,2
刊名JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
出版日期2017-09-01
卷号45页码:670-692
关键词Zhanhua Sag Es-3(l) Formation Continental shale Pore structure Controlling factors
ISSN号1875-5100
DOI10.1016/j.jngse.2017.06.005
文献子类Article
英文摘要Since shale oil and gas primarily occur in micro-nano pores and fractures, research on pore structure characteristics is important to understand shale oil and gas accumulation mechanisms. Studies on the pore structure of the lower third member of the Shahejie (Es-3(l)) Formation in Zhanhua Sag, Jiyang Depression, Bohai Bay Basin, Eastern China, are quite limited, thereby, restricting further investment on shale oil and gas exploration. We studied continental shale pore structure characteristics and their controlling factors by using a series of laboratory experiments on core samples taken from the Luo-69 Well. The results demonstrate that the Es-3(l) continental shale has a high proportion of calcareous minerals, low siliceous minerals, and low clay minerals. It is characterized by low total organic carbon (TOC) content, low thermal maturity, and Type I and II organic matter. Five different kinds of pore spaces are developed in the shale samples: organic matter-hosted pores, intergranular pores, intercrystalline pores, dissolution pores, and micro-fractures, with the majority of slit-shaped and ink-bottle-shaped pores. Macropores make the greatest contribution to the total pore volume, whereas micropores provide the major surface area. As the organic-rich laminated calcareous shale (ORLCS) presents a larger pore volume, surface area, and mercury withdrawal efficiency, it is a favourable shale lithofacies for shale oil and gas storage and flow. Compared with the Longmaxi marine shale, macropores well-developed in the Es-3(l) shale make great contribution for free hydrocarbon accumulation. Samples with different TOC contents, mineral compositions, thermal maturities, and lamellar layers exhibit distinct differences in pore structure. Mineral composition and thermal maturity primarily affect micropores and mesopores. Macropores are influenced by mineral composition, TOC content, thermal maturity, and lamellar layers. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词MISSISSIPPIAN BARNETT SHALE ; NORTHEASTERN BRITISH-COLUMBIA ; SILURIAN LONGMAXI FORMATION ; GAS-STORAGE CAPACITY ; NORTH-CENTRAL TEXAS ; FORT-WORTH BASIN ; SICHUAN BASIN ; SCATTERING TECHNIQUES ; GEOLOGICAL CONTROLS ; SURFACE-AREA
WOS研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000409150200049
出版者ELSEVIER SCI LTD
资助机构National Basic Research Programme of China (973 Project)(2014CB239105) ; National Basic Research Programme of China (973 Project)(2014CB239105) ; National Basic Research Programme of China (973 Project)(2014CB239105) ; National Basic Research Programme of China (973 Project)(2014CB239105)
源URL[http://ir.iggcas.ac.cn/handle/132A11/61900]  
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Jiang, Zhenxue
作者单位1.China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China
2.China Univ Petr, Unconvent Nat Gas Res Inst, Beijing 102249, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China
4.China Univ Petr, Coll Geosci, Beijing 102249, Peoples R China
推荐引用方式
GB/T 7714		 Li, Tingwei,Jiang, Zhenxue,Li, Zhuo,et al. Continental shale pore structure characteristics and their controlling factors: A case study from the lower third member of the Shahejie Formation, Zhanhua Sag, Eastern China[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2017,45:670-692.
APA Li, Tingwei.,Jiang, Zhenxue.,Li, Zhuo.,Wang, Pengfei.,Xu, Chenlu.,...&Ning, Chuanxiang.(2017).Continental shale pore structure characteristics and their controlling factors: A case study from the lower third member of the Shahejie Formation, Zhanhua Sag, Eastern China.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,45,670-692.
MLA Li, Tingwei,et al."Continental shale pore structure characteristics and their controlling factors: A case study from the lower third member of the Shahejie Formation, Zhanhua Sag, Eastern China".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 45(2017):670-692.

入库方式： OAI收割

来源：地质与地球物理研究所

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