Effects of Pore Water on the Heterogeneity in Nanopore Structures of Deep Marine Shales: A Multifractal Study on As-Received Shale Samples from the Southern Sichuan Basin, China
文献类型：期刊论文
| 作者 | Gao, Haitao2,3,4; Cheng, Peng3,4; Wu, Wei1; Luo, Chao1; Liu, Shenyang1; Li, Tengfei3,4; Zhou, Qin3,4; Zhong, Kesu1; Tian, Hui3,4 |
| 刊名 | ENERGY & FUELS
 |
| 出版日期 | 2023 |
| 卷号 | 37期号:13页码:9032-9046 |
| 关键词 | ORGANIC-RICH SHALES GAS-ADSORPTION SURFACE-AREA MATTER RESERVOIRS METHANE MARCELLUS MODELS SYSTEM COALS |
| ISSN号 | 0887-0624 |
| DOI | 10.1021/acs.energyfuels.3c00547 |
| 英文摘要 | Shale strata generally contain a certain amount of pore water that accompanies the whole diagenetic and thermal evolution processes of shales. The distribution and occurrence characteristics of pore water significantly influence the nanopore structures of shales, which subsequently affects the accumulation and production of shale oil and gas resources. Based on a set of fresh Wufeng-Longmaxi (WL) shale samples from the deep marine strata in the southern Sichuan Basin, this study investigated the effects of pore water on the pore heterogeneity of shales by a multifractal method. The results show that (1) the deep WL shales have low pore water content (CPW) and water saturation (SEW), with average values of 7.47 mg/g and 35.21%, respectively, and the CPW and SEW of the shales are mainly controlled by clay mineral content. (2) Under dried conditions, the pore heterogeneity of high-probability measure areas has negative relationships with the clay mineral content and pore volumes with pore widths of 4-10 nm, and the pore connectivity is mainly controlled by clay mineral content. Under as-received conditions, however, the pore heterogeneity of low-probability measure areas and pore connectivity have positive relationships with clay mineral content and pore volumes with pore widths less than 4 nm. (3) Under as-received conditions, the pore water mainly occupies the nanopore with pore widths less than 4 nm and reduces the effective pore spaces and connectivity, which reduces the pore heterogeneity of high-probability measure areas and enhances the pore heterogeneity of low-probability measure areas. ? 2023 American Chemical Society |
| WOS研究方向 | Energy & Fuels ; Engineering, Chemical |
| 语种 | 英语 |
| WOS记录号 | WOS:001006208800001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/80333]  |
| 专题 | 有机地球化学国家重点实验室 |
| 作者单位 | 1.Research Institute of Shale Gas, PetroChina Southwest Oil and Gas Fields, Chengdu; 610002, China 2.University of Chinese Academy of Sciences, Beijing; 100049, China 3.CAS Center for Excellence in Deep Earth Science, Guangzhou; 510640, China 4.State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou; 510640, China |
| 推荐引用方式 GB/T 7714 | Gao, Haitao,Cheng, Peng,Wu, Wei,et al. Effects of Pore Water on the Heterogeneity in Nanopore Structures of Deep Marine Shales: A Multifractal Study on As-Received Shale Samples from the Southern Sichuan Basin, China[J]. ENERGY & FUELS,2023,37(13):9032-9046. |
| APA | Gao, Haitao.,Cheng, Peng.,Wu, Wei.,Luo, Chao.,Liu, Shenyang.,...&Tian, Hui.(2023).Effects of Pore Water on the Heterogeneity in Nanopore Structures of Deep Marine Shales: A Multifractal Study on As-Received Shale Samples from the Southern Sichuan Basin, China.ENERGY & FUELS,37(13),9032-9046. |
| MLA | Gao, Haitao,et al."Effects of Pore Water on the Heterogeneity in Nanopore Structures of Deep Marine Shales: A Multifractal Study on As-Received Shale Samples from the Southern Sichuan Basin, China".ENERGY & FUELS 37.13(2023):9032-9046. |
入库方式： OAI收割
来源：广州地球化学研究所
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