Differences of Main Enrichment Factors of S1l(1-1)(1) Sublayer Shale Gas in Southern Sichuan Basin
文献类型：期刊论文
| 作者 | Shi, Xuewen3,4; Luo, Chao3,4; Cao GH(曹高辉)2 ; He, Yifan4; Li, Yi4; Zhong, Kesu4; Jiang WB(江文滨)1,2; Lin M(林缅)1,2
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| 刊名 | ENERGIES
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| 出版日期 | 2021-09-01 |
| 卷号 | 14期号:17页码:21 |
| 关键词 | S1l(1-1)(1) sublayer gas content organic pore inorganic pore |
| DOI | 10.3390/en14175472 |
| 通讯作者 | Cao, Gaohui(caogaohui@imech.ac.cn) ; Jiang, Wenbin(jiangwenbin@imech.ac.cn) |
| 英文摘要 | In this study, shale cores from 20 wells in the S1l(1-1)(1) sublayer of Longmaxi Formation buried in shallow shale (<3500 m) and deep shale (>3500 m) in the southern Sichuan Basin, China were collected to compare their pore structures and gas-bearing properties using multiple experiments. Results showed that the deep layer has relatively lower brittle mineral content, which is disadvantageous in terms of the higher requirements it imposes on hydraulic fracturing. Results also showed that the most important factor controlling the differential enrichment of S1l(1-1)(1) shale gas in southern Sichuan Basin is porosity. Moreover, the porosity composition of shallow shale and deep shale has significant differences: the porosity of shallow shale is dominated by organic pores, while for deep shale, both organic and inorganic pores are important. The inorganic pores provide significant storage space for free gas in deep shale; their contribution warrants more attention. We also found that the difference in organic porosity of the shallow and deep shale samples resulted from large differences in pore development ability, while the highest inorganic porosity was concentrated near the optimal mineral composition when the content of quartz plus feldspar plus pyrite was about 70%. This study revealed the primary factor controlling the difference in gas content between shallow and deep shale and detailed the characteristics of microscopic pore structure, providing a basis for the exploration and development of deep shale gas in the Wufeng-Longmaxi Formation in the southern Sichuan Basin. |
| 分类号 | Q3 |
| WOS关键词 | SILURIAN LONGMAXI FORMATIONS ; UPPER ORDOVICIAN WUFENG ; ORGANIC-RICH SHALES ; JIAOSHIBA AREA ; PORE STRUCTURE ; CHINA ; ACCUMULATION ; ADSORPTION ; DIFFUSION ; NORTH |
| 资助项目 | National Natural Science Foundation of China[41872163] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010304] ; Major Engineering Technology Field Test Project of China National Petroleum Corporation[2019F-31-01] |
| WOS研究方向 | Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000694079600001 |
| 资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major Engineering Technology Field Test Project of China National Petroleum Corporation |
| 其他责任者 | Cao, Gaohui ; Jiang, Wenbin |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/87399]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 3.Key Lab Shale Gas Evaluat & Exploitat Sichuan Pro, Chengdu 610051, Peoples R China; 4.Petrochina Southwest Oil & Gas Field Co, Shale Gas Res Inst, Chengdu 610051, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Shi, Xuewen,Luo, Chao,Cao GH,et al. Differences of Main Enrichment Factors of S1l(1-1)(1) Sublayer Shale Gas in Southern Sichuan Basin[J]. ENERGIES,2021,14(17):21. |
| APA | Shi, Xuewen.,Luo, Chao.,曹高辉.,He, Yifan.,Li, Yi.,...&林缅.(2021).Differences of Main Enrichment Factors of S1l(1-1)(1) Sublayer Shale Gas in Southern Sichuan Basin.ENERGIES,14(17),21. |
| MLA | Shi, Xuewen,et al."Differences of Main Enrichment Factors of S1l(1-1)(1) Sublayer Shale Gas in Southern Sichuan Basin".ENERGIES 14.17(2021):21. |
入库方式： OAI收割
来源：力学研究所
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