Numerical Investigation of an Anisotropic Permeability Model for Bedded Coal Based on the Equivalent Fracture Aperture Coefficient
文献类型：期刊论文
| 作者 | Qi, Xianyin; Fu, Peng; Wang, Shengwei |
| 刊名 | SHOCK AND VIBRATION
 |
| 出版日期 | 2022-05-27 |
| 卷号 | 2022 |
| ISSN号 | 1070-9622 |
| 英文摘要 | Permeability evaluation of bedded coal is always a difficult problem, thereby an improved permeability model is established based on the equivalent fracture aperture coefficient. The equivalent fracture aperture coefficient can reflect the anisotropy of coal in mechanical and seepage properties. This model is executed into COMSOL Multiphysics to perform numerical simulations. The evolutions of permeability, gas pressure, and cumulative gas production on three typical boundary conditions are investigated. Our simulation results show that this model is competent to represent evolution of anisotropic permeability in bedded coal during gas production, which is governed by the competitive effects of desorption and effective stress. Under the same boundary conditions, different equivalent fracture aperture coefficients lead to significantly different trends in anisotropic permeability evolution. Anisotropic permeability changes with gas pressure and time during production, and the magnitude of change depends on both the equivalent fracture aperture coefficient and applied boundary conditions. Our model shows that the bedding characteristics of permeability have a significant effect on gas production forecasts. |
| 学科主题 | Acoustics ; Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000807707000004 |
| 出版者 | HINDAWI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34914]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Yangtze University; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Qi, Xianyin,Fu, Peng,Wang, Shengwei. Numerical Investigation of an Anisotropic Permeability Model for Bedded Coal Based on the Equivalent Fracture Aperture Coefficient[J]. SHOCK AND VIBRATION,2022,2022. |
| APA | Qi, Xianyin,Fu, Peng,&Wang, Shengwei.(2022).Numerical Investigation of an Anisotropic Permeability Model for Bedded Coal Based on the Equivalent Fracture Aperture Coefficient.SHOCK AND VIBRATION,2022. |
| MLA | Qi, Xianyin,et al."Numerical Investigation of an Anisotropic Permeability Model for Bedded Coal Based on the Equivalent Fracture Aperture Coefficient".SHOCK AND VIBRATION 2022(2022). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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