Lattice Boltzmann modeling of gaseous microflow in shale nanoporous media
文献类型：期刊论文
| 作者 | Zuo, Hong2,3,4; Zhai, Cheng1; Deng, Shouchun3; Jiang, Xiaofang3; Javadpour, Farzam4 |
| 刊名 | FUEL
 |
| 出版日期 | 2023-04-01 |
| 卷号 | 337期号:-页码:- |
| ISSN号 | 0016-2361 |
| 关键词 | Lattice Boltzmann method (LBM) Slippage effects Nanoporous media Shale gas Apparent permeability |
| 英文摘要 | Gaseous microflow in nanoporous media of ultratight shale strata was reexamined. Hundreds of nanoscale pore network samples of the Wufeng and Longmaxi shale matrix were reconstructed by ultra-precise FIB-SEM ex-periments and the Quartet Structure Generation Set (QSGS) method. An OpenMP-based, high-performance, parallelized MRT-LBM model to predict shale gas flow in reconstructed nanoporous media was developed accordingly. The MRT-LBM model was validated against the analytical solutions, molecular dynamics simula-tions, and discrete velocity method. The MRT-LBM accurately predicted gaseous microflow in the continuum, slip, and early transition flow regimes. Using this solver, extensive pore-scale simulations of the gas transport in nanoscale pore networks were performed to study the effects of pore heterogeneity and slippage effects on the apparent permeability of shale gas. It has been known that gas slippage and Knudsen diffusion dramatically improve gas flow in a single capillary. Hence, permeability models based on a bundle of capillaries followed the increasing gas flow predictions. However, our modeling results revealed that gas slippage is suppressed by pore tortuosity, wall curvature, and surface roughness. The proportionality factor of the Klinkenberg model decreases with increasing tortuosity and decreasing porosity. We develop an apparent permeability model appropriate for low-porosity and large-tortuosity shale nanoporous media, with a corrected proportionality factor. |
| 学科主题 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000910659200001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35313]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China 2.School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China 3.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 4.Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, University Station, Box X, Austin, TX 78713-8924, USA |
| 推荐引用方式 GB/T 7714 | Zuo, Hong,Zhai, Cheng,Deng, Shouchun,et al. Lattice Boltzmann modeling of gaseous microflow in shale nanoporous media[J]. FUEL,2023,337(-):-. |
| APA | Zuo, Hong,Zhai, Cheng,Deng, Shouchun,Jiang, Xiaofang,&Javadpour, Farzam.(2023).Lattice Boltzmann modeling of gaseous microflow in shale nanoporous media.FUEL,337(-),-. |
| MLA | Zuo, Hong,et al."Lattice Boltzmann modeling of gaseous microflow in shale nanoporous media".FUEL 337.-(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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