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arXiv · 1202.0887

Local Wettability Reversal during Steady-State Two-Phase Flow in Porous Media

Santanu Sinha·Morten Grøva·Torgeir Bryge Ødegården·Erik Skjetne·Alex Hansen
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Abstract

We study the effect of local wettability reversal on remobilizing immobile fluid clusters in steady-state two-phase flow in porous media. We consider a two dimensional network model for porous medium and introduce a wettability alteration mechanism. A qualitative change in the steady state flow patterns, destabilizing the percolating and trapped clusters, is observed as the system wettability is varied. When capillary forces are strong a finite wettability alteration is necessary to move the system from single-phase to two-phase flow regime. For the case of both phases being mobile we find a linear relationship between fractional flow and wettability alteration.

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Santanu Sinha, Morten Grøva, Torgeir Bryge Ødegården, Erik Skjetne, Alex Hansen. 2012-02-04. Local Wettability Reversal during Steady-State Two-Phase Flow in Porous Media. https://doi.org/10.1103/physreve.84.037303

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