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Local wettability reversal during steady-state two-phase flow in porous media.
MedLine Citation:
PMID:  22060540     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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 a 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 a single-phase to a two-phase flow regime. When both phases are mobile, we find a linear relationship between fractional flow and wettability alteration.
Authors:
Santanu Sinha; Morten Grøva; Torgeir Bryge Odegården; Erik Skjetne; Alex Hansen
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-28
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  84     ISSN:  1550-2376     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-11-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136452     Medline TA:  Phys Rev E Stat Nonlin Soft Matter Phys     Country:  -    
Other Details:
Languages:  ENG     Pagination:  037303     Citation Subset:  -    
Affiliation:
Department of Physics, Norwegian University of Science and Technology, N-7491 Trondheim, Norway.
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