Effects of italicized angle and turning angle on shale gas nanoflows in non-straight nanopores: A nonequilibrium molecular dynamics study
文献类型：期刊论文
| 作者 | Zhang, Mingmin1,4,5; Guo, Guang-Jun1,4,5; Tian, Huiquan3; Zhang, Zhengcai2; Gao, Kai1,4,5 |
| 刊名 | FUEL
 |
| 出版日期 | 2020-10-15 |
| 卷号 | 278页码:9 |
| 关键词 | Shale gas nanoflow Non-straight nanopore Italicized angle Turning angle Surface roughness |
| ISSN号 | 0016-2361 |
| DOI | 10.1016/j.fuel.2020.118275 |
| 英文摘要 | Non-equilibrium molecular dynamic simulations were performed to investigate the effects of the italicized angle and turning angle of non-straight nanopores on the flux of shale gas, with considering smooth and rough porous surfaces respectively. First, the flux data in smooth nanopores are always larger than that in the rough because the rough surface results in the stronger adsorption and slower flow-velocity profiles than the smooth. Second, the italicized angle promotes the methane flow for both smooth and rough nanopores. It is explained that the energy barrier located at the entrances of nanopores reduces with increasing the italicized angle. Moreover, the average Lennard-Jones (LJ) potential of nanopores, a resistance for particles across these nanopores, also weakens with the angle. Third, however, the turning angle shows different effects depending on the roughness. It impedes the methane flow in smooth nanopores but promotes the flow in rough nanopores. The decisive factor lies in the energy barrier locating at the bending point, which plays a prominent impeding impact in smooth nanopores but unapparent in rough nanopores, while the average LJ potential commonly promotes the flow for both surfaces with increasing the turning angle. To the best of our knowledge, this is the first reported study clearly distinguishing the effects of italicized angle and turning angle on nanoflow. These observations are very useful for understanding the transport of shale gas in tortuous porous networks in shale as well as the flow in carbon nanotubes. |
| WOS关键词 | FAST MASS-TRANSPORT ; METHANE ADSORPTION ; WATER PERMEATION ; ORGANIC-MATTER ; PORE STRUCTURE ; FLOW ; SIMULATION ; MODEL |
| 资助项目 | Chinese Academy of Sciences[ZDBS-LY-DQC003] ; IGGCAS[IGGCAS-201903] ; IGGCAS[SZJJ201901] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10020301] ; National Natural Science Foundation of China[41602038] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000559766200010 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; IGGCAS ; IGGCAS ; IGGCAS ; IGGCAS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; IGGCAS ; IGGCAS ; IGGCAS ; IGGCAS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; IGGCAS ; IGGCAS ; IGGCAS ; IGGCAS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; IGGCAS ; IGGCAS ; IGGCAS ; IGGCAS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/97627]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Guo, Guang-Jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Shandong, Peoples R China 3.Yunnan Univ, Sch Resource Environm & Earth Sci, Kunming 650500, Yunnan, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Mingmin,Guo, Guang-Jun,Tian, Huiquan,et al. Effects of italicized angle and turning angle on shale gas nanoflows in non-straight nanopores: A nonequilibrium molecular dynamics study[J]. FUEL,2020,278:9. |
| APA | Zhang, Mingmin,Guo, Guang-Jun,Tian, Huiquan,Zhang, Zhengcai,&Gao, Kai.(2020).Effects of italicized angle and turning angle on shale gas nanoflows in non-straight nanopores: A nonequilibrium molecular dynamics study.FUEL,278,9. |
| MLA | Zhang, Mingmin,et al."Effects of italicized angle and turning angle on shale gas nanoflows in non-straight nanopores: A nonequilibrium molecular dynamics study".FUEL 278(2020):9. |
入库方式： OAI收割
来源：地质与地球物理研究所
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