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DOI | 10.1002/2017WR021500 |
Numerical Simulation of Multiphase Flow in Nanoporous Organic Matter With Application to Coal and Gas Shale Systems | |
Song, Wenhui1; Yao, Jun1; Ma, Jingsheng2; Sun, Hai1; Li, Yang3; Yang, Yongfei1; Zhang, Lei1 | |
2018-02-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:2页码:1077-1092 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Scotland |
英文摘要 | Fluid flow in nanoscale organic pores is known to be affected by fluid transport mechanisms and properties within confined pore space. The flow of gas and water shows notably different characteristics compared with conventional continuum modeling approach. A pore network flow model is developed and implemented in this work. A 3-D organic pore network model is constructed from 3-D image that is reconstructed from 2-D shale SEM image of organic-rich sample. The 3-D pore network model is assumed to be gas-wet and to contain initially gas-filled pores only, and the flow model is concerned with drainage process. Gas flow considers a full range of gas transport mechanisms, including viscous flow, Knudsen diffusion, surface diffusion, ad/desorption, and gas PVT and viscosity using a modified van der Waals' EoS and a correlation for natural gas, respectively. The influences of slip length, contact angle, and gas adsorption layer on water flow are considered. Surface tension considers the pore size and temperature effects. Invasion percolation is applied to calculate gas-water relative permeability. The results indicate that the influences of pore pressure and temperature on water phase relative permeabilities are negligible while gas phase relative permeabilities are relatively larger in higher temperatures and lower pore pressures. Gas phase relative permeability increases while water phase relative permeability decreases with the shrinkage of pore size. This can be attributed to the fact that gas adsorption layer decreases the effective flow area of the water phase and surface diffusion capacity for adsorbed gas is enhanced in small pore size. |
英文关键词 | multiphase flow pore network model nanoporous organic matter coal and gas shale relative permeability transport mechanisms |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428474500023 |
WOS关键词 | TRANSPORT-PROPERTIES ; SURFACE-DIFFUSION ; METHANE ADSORPTION ; TOMOGRAPHIC-IMAGES ; EFFECTIVE SLIP ; POROUS-MEDIA ; PORE ; NETWORK ; PERMEABILITY ; WATER |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21003 |
专题 | 资源环境科学 |
作者单位 | 1.China Univ Petr East China, Res Ctr Multiphase Flow Porous Media, Qingdao, Peoples R China; 2.Heriot Watt Univ, Sch Energy Geosci Infrastruct & Soc, Edinburgh, Midlothian, Scotland; 3.Sinopec, Dept Oilfield Explorat & Dev, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Song, Wenhui,Yao, Jun,Ma, Jingsheng,et al. Numerical Simulation of Multiphase Flow in Nanoporous Organic Matter With Application to Coal and Gas Shale Systems[J]. WATER RESOURCES RESEARCH,2018,54(2):1077-1092. |
APA | Song, Wenhui.,Yao, Jun.,Ma, Jingsheng.,Sun, Hai.,Li, Yang.,...&Zhang, Lei.(2018).Numerical Simulation of Multiphase Flow in Nanoporous Organic Matter With Application to Coal and Gas Shale Systems.WATER RESOURCES RESEARCH,54(2),1077-1092. |
MLA | Song, Wenhui,et al."Numerical Simulation of Multiphase Flow in Nanoporous Organic Matter With Application to Coal and Gas Shale Systems".WATER RESOURCES RESEARCH 54.2(2018):1077-1092. |
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