The Interplay Between Pore‐Scale Heterogeneity, Surface Roughness, and Wettability Controls Trapping in Two‐Phase Fluid Displacement in Porous Media

Helmut Geistlinger, Saeed Golmohammadi, Bilal Zulfiqar, Steffen Schlueter, Enrico Segre, Ran Holtzman

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Abstract

Predicting the compactness of the invasion front and the amount of trapped fluid left behind is of crucial importance to applications ranging from microfluidics and fuel cells to subsurface storage of carbon and hydrogen. We examine the interplay of wettability, macro‐ and pore scale heterogeneity (pore angularity and pore wall roughness), and its influence on flow patterns formation and trapping efficiency in porous media by a combination of 3D micro‐CT imaging with 2D direct visualization of micromodels. We observe various phase transitions between the following capillary flow regimes (phases): (a) compact advance, (b) wetting and drainage Invasion percolation, (c) Ordinary percolation.
Original languageEnglish
Article numbere2023GL106197
Number of pages8
JournalGeophysical Research Letters
Volume51
Issue number1
Early online date6 Jan 2024
DOIs
Publication statusPublished - 16 Jan 2024

Bibliographical note

© 2024 The Authors.

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

Funder

Deutsche Forschungsgemeinschaft. Grant Numbers: GE 766/12-1, GE 766/12-2
Engineering and Physical Sciences Research Council. Grant Number: EP/V050613/1
Open Access funding enabled and organized by Projekt DEAL.

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