Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021WR030748 |
Impact of displacement direction relative to heterogeneity on averaged capillary pressure-saturation curves | |
Javad Shokri; Omar E. Godinez-Brizuela; Hamidreza Erfani; Yongqiang Chen; Masoud Babaei; Brian Berkowitz; Vahid Niasar | |
2022-01-25 | |
发表期刊 | Water Resources Research
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出版年 | 2022 |
英文摘要 | The capillary pressure-saturation relation is one of the key constitutive equations used for modeling multiphase (or partially saturated) flow in porous materials. It is known that this empirical relation depends strongly on dynamic conditions, but the impact of a heterogeneity interface on this relationship has been studied less. The present study employed optical imaging to visualize two-phase drainage under different injection rates and two flow directions, in a heterogeneous micromodel. By analyzing the curvatures of the fluid-fluid interfaces, the averaged capillary pressures for the coarse and fine sections of the micromodel, and the entire micromodel were estimated. Results show that the capillary pressure-saturation relation in the vicinity of a heterogeneity interface does not follow the conventional models proposed in the literature. The averaged capillary pressure over the entire micromodel for the fine-to-coarse direction shows decreasing capillary pressure with decreasing wetting phase saturation. However, in the coarse-to-fine direction, a non-monotonic trend was observed. These initial findings highlight the gaps in the knowledge of upscaling capillary pressure in heterogeneous porous materials. Moreover, discontinuity in saturation was clearly more pronounced for the fine-to-coarse direction, as a result of lower entry capillary resistance against the flow in the coarse section. This article is protected by copyright. All rights reserved. |
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/346026 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Javad Shokri,Omar E. Godinez-Brizuela,Hamidreza Erfani,et al. Impact of displacement direction relative to heterogeneity on averaged capillary pressure-saturation curves[J]. Water Resources Research,2022. |
APA | Javad Shokri.,Omar E. Godinez-Brizuela.,Hamidreza Erfani.,Yongqiang Chen.,Masoud Babaei.,...&Vahid Niasar.(2022).Impact of displacement direction relative to heterogeneity on averaged capillary pressure-saturation curves.Water Resources Research. |
MLA | Javad Shokri,et al."Impact of displacement direction relative to heterogeneity on averaged capillary pressure-saturation curves".Water Resources Research (2022). |
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