Surface Charge Affecting Fluid–Fluid Displacement at Pore Scale
Abstract: Efficiency in fluid–fluid displacement is drastically reduced by viscous fingering, limiting the overall effectiveness in enhanced oil recovery, membrane science, and lateral flow devices used in biomedical applications. Local instabilities at the fluid–fluid interface lead to finger‐like patterns when a less viscous fluid displaces an immiscible fluid of higher viscosity. This widely observed phenomenon in multiphase flow inside porous media is infamously intricate to control, especially for given geometry and viscosity ratio. The presented study uses a highly controlled microfluidic porous network structure with tailored ionic surface strength. The direct correlation of viscous fingering evolution on the porous structure's zeta potential at a pore‐scale level is demonstrated via polyelectrolyte coatings using a layer‐by‐layer technique. Displacement patterns are tuned from vigorous viscous fingering over stable displacement to corner flow events across a broad range of capillary numbers depending on the applied coatings. The experimental data show an increasing trend of oil recovery with increasing surface wettability, consistent with several previous findings. Furthermore, the results reveal that surface zeta potential correlates positively with recovery rate but negatively with the displacement stability quantified by the fractal dimension. These insights enable a more targeted porous media design to obtain optimal multiphase flow control.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Surface Charge Affecting Fluid–Fluid Displacement at Pore Scale ; day:02 ; month:02 ; year:2022 ; extent:9
Advanced materials interfaces ; (02.02.2022) (gesamt 9)
- Creator
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Kalde, Anna
Lippold, Sophia
Loelsberg, Jonas
Mertens, Ann‐Kathrin
Linkhorst, John
Tsai, Peichun Amy
Wessling, Matthias
- DOI
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10.1002/admi.202101895
- URN
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urn:nbn:de:101:1-2022020214091098338755
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:36 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Kalde, Anna
- Lippold, Sophia
- Loelsberg, Jonas
- Mertens, Ann‐Kathrin
- Linkhorst, John
- Tsai, Peichun Amy
- Wessling, Matthias
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Surface Charge Affecting Fluid–Fluid Displacement at Pore Scale
Interactive porous networks for immiscible fluid-fluid displacement
Tailoring Pore Networks – Gas Diffusion Electrodes via Additive Manufacturing
Transport and clogging dynamics of flexible rods in pore constrictions
Wetting-Induced Polyelectrolyte Pore Bridging
On the Resistances of a Slurry Electrode Vanadium Redox Flow Battery
The Dynamics of Nanoparticle-enhanced Fluid Displacement in Porous Media - A Pore-scale Study
Micromodel of a Gas Diffusion Electrode Tracks In‐Operando Pore‐Scale Wetting Phenomena
Silicone based membranes for organic solvent nanofiltration
Blood compatible membranes through surface functionalization
Investigations of electrochemical $CO_2}$-reductions from micro- to macroscale
In-silico and in-situ optimization for enhanced synthesis of functional microgels
Surface Charge Affecting Fluid–Fluid Displacement at Pore Scale
Interactive porous networks for immiscible fluid-fluid displacement
Tailoring Pore Networks – Gas Diffusion Electrodes via Additive Manufacturing
Transport and clogging dynamics of flexible rods in pore constrictions
Wetting-Induced Polyelectrolyte Pore Bridging
On the Resistances of a Slurry Electrode Vanadium Redox Flow Battery
The Dynamics of Nanoparticle-enhanced Fluid Displacement in Porous Media - A Pore-scale Study
Micromodel of a Gas Diffusion Electrode Tracks In‐Operando Pore‐Scale Wetting Phenomena
Silicone based membranes for organic solvent nanofiltration
Blood compatible membranes through surface functionalization
Investigations of electrochemical $CO_2}$-reductions from micro- to macroscale