Network analogues of wettability at the pore scale

Steven Robert McDougall, A B Dixit, Kenneth Stuart Sorbie

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)


This paper examines the macroscopic consequences of wettability variations at the pore scale. Important theoretical issues relating to distributed contact angles are examined and a process simulator capable of simulating the full flooding cycle characteristic of laboratory wettability tests is described. Simulations predict that final waterflood recoveries from weakly water wet (or even weakly oil wet) systems can often exceed those from strongly water-wet systems (even though initial imbibition rates may lead to the opposite conclusion). The underlying pore level physics has been explored by defining a capillarity surface, which incorporates the combined effects of both contact angle and pore dimension during the imbibition process. Finally, a regime-based framework has been developed which may go some way towards reconciling apparently contradictory wettability experiments.
Original languageEnglish
Title of host publicationDevelopments in petrophysics
PublisherGeological Society of London
Number of pages17
ISBN (Print)1897799810
Publication statusPublished - 1997

Publication series

NameGeological Society Special Publications
ISSN (Print)0305-8719


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