Effect of Particle Size on Pore Structure and Fractal Characteristics of Deep Siliceous Shales in Southern Sichuan, China, Measured Using Small-Angle Neutron Scattering and Low-Pressure Nitrogen Adsorption
文献类型：期刊论文
| 作者 | Zhan, Hongming1; Li, Xizhe2; Hu, Zhiming1,2; Chen, Liqing3; Shen WJ(沈伟军)4 ; Guo, Wei1; He, Weikang1,2; Zhou, Yuhang1,2
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| 刊名 | FRACTAL AND FRACTIONAL
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| 出版日期 | 2025-03-01 |
| 卷号 | 9期号:3 |
| 关键词 | fractal dimension shale gas small-angle neutron scattering pore structure particle size |
| ISSN号 | 2504-3110 |
| DOI | 10.3390/fractalfract9030165 |
| 英文摘要 | Granular samples are often used to characterize the pore structure of shale. To systematically analyze the influence of particle size on pore characteristics, case studies were performed on two groups of organic-rich deep shale samples. Multiple methods, including small-angle neutron scattering (SANS), low-pressure nitrogen gas adsorption (LP-N2GA), low-pressure carbon dioxide gas adsorption (LP-CO2GA), and XRD analysis, were adopted to investigate how the crushing process would affect pore structure parameters and the fractal features of deep shale samples. The research indicates that with the decrease in particle size, the measurements from nitrogen adsorption and SANS experiments significantly increase, with relative effects reaching 95.09% and 51.27%, respectively. However, the impact on carbon dioxide adsorption measurements is minor, with a maximum of only 8.97%. This suggests that the comminution process primarily alters the macropore structure, with limited influence on the micropores. Since micropores contribute the majority of the specific surface area in deep shale, the effect of particle size variation on the specific surface area is negligible, averaging only 16.52%. Shales exhibit dual-fractal characteristics. The distribution range of the mass fractal dimension of the experimental samples is 2.658-2.961, which increases as the particle size decreases. The distribution range of the surface fractal dimension is 2.777-2.834, which decreases with the decrease in particle size. |
| 分类号 | 二类/Q1 |
| WOS研究方向 | Mathematics, Interdisciplinary Applications ; Mathematics |
| 语种 | 英语 |
| WOS记录号 | WOS:001452313000001 |
| 资助机构 | This research was funded by the 14th Five-Year Plan of the Ministry of Science and Technology of PetroChina (No. 2021DJ1901) and the Demonstration Project of the National Science and Technology Major Project of the Ministry of Science and Technology of China (No. 2016ZX05062-002-001). |
| 其他责任者 | Zhan, Hongming，Li, Xizhe |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/101477]  |
| 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.Res Inst Petr Explorat & Dev; 2.University of Chinese Academy of Sciences, CAS; 3.China National Petroleum Corporation; 4.Institute of Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Zhan, Hongming,Li, Xizhe,Hu, Zhiming,et al. Effect of Particle Size on Pore Structure and Fractal Characteristics of Deep Siliceous Shales in Southern Sichuan, China, Measured Using Small-Angle Neutron Scattering and Low-Pressure Nitrogen Adsorption[J]. FRACTAL AND FRACTIONAL,2025,9(3). |
| APA | Zhan, Hongming.,Li, Xizhe.,Hu, Zhiming.,Chen, Liqing.,沈伟军.,...&Zhou, Yuhang.(2025).Effect of Particle Size on Pore Structure and Fractal Characteristics of Deep Siliceous Shales in Southern Sichuan, China, Measured Using Small-Angle Neutron Scattering and Low-Pressure Nitrogen Adsorption.FRACTAL AND FRACTIONAL,9(3). |
| MLA | Zhan, Hongming,et al."Effect of Particle Size on Pore Structure and Fractal Characteristics of Deep Siliceous Shales in Southern Sichuan, China, Measured Using Small-Angle Neutron Scattering and Low-Pressure Nitrogen Adsorption".FRACTAL AND FRACTIONAL 9.3(2025). |
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来源：力学研究所
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