Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR021644 |
A Pseudo-Vertical Equilibrium Model for Slow Gravity Drainage Dynamics | |
Becker, Beatrix1; Guo, Be2; Bandilla, Karl3; Celia, Michael A.3; Flemisch, Bernd1; Helmig, Rainer1 | |
2017-12-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; USA |
英文摘要 | Vertical equilibrium (VE) models are computationally efficient and have been widely used for modeling fluid migration in the subsurface. However, they rely on the assumption of instant gravity segregation of the two fluid phases which may not be valid especially for systems that have very slow drainage at low wetting phase saturations. In these cases, the time scale for the wetting phase to reach vertical equilibrium can be several orders of magnitude larger than the time scale of interest, rendering conventional VE models unsuitable. Here we present a pseudo-VE model that relaxes the assumption of instant segregation of the two fluid phases by applying a pseudo-residual saturation inside the plume of the injected fluid that declines over time due to slow vertical drainage. This pseudo-VE model is cast in a multiscale framework for vertically integrated models with the vertical drainage solved as a fine-scale problem. Two types of fine-scale models are developed for the vertical drainage, which lead to two pseudo-VE models. Comparisons with a conventional VE model and a full multidimensional model show that the pseudo-VE models have much wider applicability than the conventional VE model while maintaining the computational benefit of the conventional VE model. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423299000028 |
WOS关键词 | POROUS-MEDIA ; FLUID INJECTION ; CO2 STORAGE ; CARBON SEQUESTRATION ; ILLINOIS BASIN ; SIMULATION ; AQUIFERS ; CURRENTS ; SCALE ; FLOW |
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/21380 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Stuttgart, Dept Hydromech & Modelling Hydrosyst, Stuttgart, Germany; 2.Stanford Univ, Dept Energy Resources Engn, Stanford, CA 94305 USA; 3.Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA |
推荐引用方式 GB/T 7714 | Becker, Beatrix,Guo, Be,Bandilla, Karl,et al. A Pseudo-Vertical Equilibrium Model for Slow Gravity Drainage Dynamics[J]. WATER RESOURCES RESEARCH,2017,53(12). |
APA | Becker, Beatrix,Guo, Be,Bandilla, Karl,Celia, Michael A.,Flemisch, Bernd,&Helmig, Rainer.(2017).A Pseudo-Vertical Equilibrium Model for Slow Gravity Drainage Dynamics.WATER RESOURCES RESEARCH,53(12). |
MLA | Becker, Beatrix,et al."A Pseudo-Vertical Equilibrium Model for Slow Gravity Drainage Dynamics".WATER RESOURCES RESEARCH 53.12(2017). |
条目包含的文件 | 条目无相关文件。 |
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