Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR029460 |
Preferential Solute Transport in Low Permeability Zones During Spontaneous Imbibition in Heterogeneous Porous Media | |
Christopher Zahasky; Sally M. Benson | |
2022-01-12 | |
发表期刊 | Water Resources Research
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出版年 | 2022 |
英文摘要 | Multiphase flows in porous media—and the associated solute transport processes—are controlled by a combination of gravity, capillary, and viscous forces. Geologic heterogeneity influences flow and transport processes, yet gaps exist in our understanding of how heterogeneity impacts capillary-driven transport, such as during spontaneous imbibition. Here we use positron emission tomography, combined with a newly developed method for conducting spontaneous imbibition experiments, to observe solute transport into low permeability regions during imbibition. Using an experimentally parameterized 2D numerical model, we demonstrate how capillary-driven flow near the imbibition front can carry solutes into low permeability regions. This process displaces solutes from high permeability zones while the cumulative amount of solute in low permeability zones increases–opposite of what is observed under fully saturated solute transport conditions. These results highlight the complex flow and solute transport behavior that arise during multiphase displacements in heterogeneous geologic porous media. |
领域 | 资源环境 |
URL | 查看原文 |
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/345073 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Christopher Zahasky,Sally M. Benson. Preferential Solute Transport in Low Permeability Zones During Spontaneous Imbibition in Heterogeneous Porous Media[J]. Water Resources Research,2022. |
APA | Christopher Zahasky,&Sally M. Benson.(2022).Preferential Solute Transport in Low Permeability Zones During Spontaneous Imbibition in Heterogeneous Porous Media.Water Resources Research. |
MLA | Christopher Zahasky,et al."Preferential Solute Transport in Low Permeability Zones During Spontaneous Imbibition in Heterogeneous Porous Media".Water Resources Research (2022). |
条目包含的文件 | 条目无相关文件。 |
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