The Role of Local Instabilities in Fluid Invasion into Permeable Media

Abstract Wettability is an important factor which controls the displacement of immiscible fluids in permeable media, with far reaching implications for storage of CO2 in deep saline aquifers, fuel cells, oil recovery, and for the remediation of oil contaminated soils. Considering the paradigmatic ca...

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Autores principales: Kamaljit Singh, Hagen Scholl, Martin Brinkmann, Marco Di Michiel, Mario Scheel, Stephan Herminghaus, Ralf Seemann
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Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/c9a90de3441742c9aadb4d5e9215e3d6
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spelling oai:doaj.org-article:c9a90de3441742c9aadb4d5e9215e3d62021-12-02T11:40:43ZThe Role of Local Instabilities in Fluid Invasion into Permeable Media10.1038/s41598-017-00191-y2045-2322https://doaj.org/article/c9a90de3441742c9aadb4d5e9215e3d62017-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00191-yhttps://doaj.org/toc/2045-2322Abstract Wettability is an important factor which controls the displacement of immiscible fluids in permeable media, with far reaching implications for storage of CO2 in deep saline aquifers, fuel cells, oil recovery, and for the remediation of oil contaminated soils. Considering the paradigmatic case of random piles of spherical beads, fluid front morphologies emerging during slow immiscible displacement are investigated in real time by X-ray micro–tomography and quantitatively compared with model predictions. Controlled by the wettability of the bead matrix two distinct displacement patterns are found. A compact front morphology emerges if the invading fluid wets the beads while a fingered morphology is found for non–wetting invading fluids, causing the residual amount of defending fluid to differ by one order of magnitude. The corresponding crossover between these two regimes in terms of the advancing contact angle is governed by an interplay of wettability and pore geometry and can be predicted on the basis of a purely quasi–static consideration of local instabilities that control the progression of the invading interface.Kamaljit SinghHagen SchollMartin BrinkmannMarco Di MichielMario ScheelStephan HerminghausRalf SeemannNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Kamaljit Singh
Hagen Scholl
Martin Brinkmann
Marco Di Michiel
Mario Scheel
Stephan Herminghaus
Ralf Seemann
The Role of Local Instabilities in Fluid Invasion into Permeable Media
description Abstract Wettability is an important factor which controls the displacement of immiscible fluids in permeable media, with far reaching implications for storage of CO2 in deep saline aquifers, fuel cells, oil recovery, and for the remediation of oil contaminated soils. Considering the paradigmatic case of random piles of spherical beads, fluid front morphologies emerging during slow immiscible displacement are investigated in real time by X-ray micro–tomography and quantitatively compared with model predictions. Controlled by the wettability of the bead matrix two distinct displacement patterns are found. A compact front morphology emerges if the invading fluid wets the beads while a fingered morphology is found for non–wetting invading fluids, causing the residual amount of defending fluid to differ by one order of magnitude. The corresponding crossover between these two regimes in terms of the advancing contact angle is governed by an interplay of wettability and pore geometry and can be predicted on the basis of a purely quasi–static consideration of local instabilities that control the progression of the invading interface.
format article
author Kamaljit Singh
Hagen Scholl
Martin Brinkmann
Marco Di Michiel
Mario Scheel
Stephan Herminghaus
Ralf Seemann
author_facet Kamaljit Singh
Hagen Scholl
Martin Brinkmann
Marco Di Michiel
Mario Scheel
Stephan Herminghaus
Ralf Seemann
author_sort Kamaljit Singh
title The Role of Local Instabilities in Fluid Invasion into Permeable Media
title_short The Role of Local Instabilities in Fluid Invasion into Permeable Media
title_full The Role of Local Instabilities in Fluid Invasion into Permeable Media
title_fullStr The Role of Local Instabilities in Fluid Invasion into Permeable Media
title_full_unstemmed The Role of Local Instabilities in Fluid Invasion into Permeable Media
title_sort role of local instabilities in fluid invasion into permeable media
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/c9a90de3441742c9aadb4d5e9215e3d6
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