A fully coupling coal-gas model associated with inertia and slip effects for CBM migration
文献类型：期刊论文
| 作者 | Kang, Jian-hong3; Xia, Tong-qiang1,2; Gao, Feng3; Wang, Xin-xin3 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2016 |
| 卷号 | 75期号:7页码:- |
| 关键词 | Inertia effect Slip effect CBM extraction Coal-gas interactions |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-016-5378-y |
| 英文摘要 | Although inertia and slip effects of gas flow that may impose significant influences on Coalbed methane (CBM) well and reservoir performance have been widely confirmed and studied, and some mathematical models have also been proposed to quantitatively evaluate these two effects, the combined inertia and slip effects on CBM migration were seldom considered in the previous models. In this study, a fully coupled finite element (FE) model of non-Darcy gas flow and coal deformation process with sorption and Klinkenberg effects in the coalbed is developed to quantify CBM migration mechanism. The FE model is validated by comparison with available analytical and numerical solutions. The results indicate that the evolution of coalbed permeability and gas transport in CBM reservoir not only relate with the sorption-induced coal deformation and the pore pressure change, but also closely depend on the coupling inertia (non-Darcy) effect and slip (Klinkenberg) effects. Based on the simulation, it is found that CBM production can be significantly enhanced due to gas slip (Klinkenberg) effect. But when slip effect is significant, the inertia effect will be ignored. The simulation results can improve the understanding of the coal-gas interactions during underground CBM migration and provide a scientific basis for evaluation of the gas-drainage efficiency, design and optimization of drainage systems, etc. However, the different pressure and permeability thresholds corresponding to prominent response of inertia or slip effect should be further determined through experiments and theoretical models in the future. |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000373635400041 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3854]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.China Univ Min & Technol, Sch Elect Power Engn ; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 3.China Univ Min & Technol, Sch Mech & Civil Engn |
| 推荐引用方式 GB/T 7714 | Kang, Jian-hong,Xia, Tong-qiang,Gao, Feng,et al. A fully coupling coal-gas model associated with inertia and slip effects for CBM migration[J]. ENVIRONMENTAL EARTH SCIENCES,2016,75(7):-. |
| APA | Kang, Jian-hong,Xia, Tong-qiang,Gao, Feng,&Wang, Xin-xin.(2016).A fully coupling coal-gas model associated with inertia and slip effects for CBM migration.ENVIRONMENTAL EARTH SCIENCES,75(7),-. |
| MLA | Kang, Jian-hong,et al."A fully coupling coal-gas model associated with inertia and slip effects for CBM migration".ENVIRONMENTAL EARTH SCIENCES 75.7(2016):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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