Print Email Facebook Twitter Simulation of three-phase displacement mechanisms using a 2D lattice-Boltzmann model Title Simulation of three-phase displacement mechanisms using a 2D lattice-Boltzmann model Author van Kats, F.M. Egberts, P.J.P. Nederlands Instituut voor Toegepaste Geowetenschappen TNO Publication year 1999 Abstract Using a numerical technique, known as the lattice-Boltzmann method, we study immiscible three-phase flow at the pore scale. An important phenomenon at this scale is the spreading of oil onto the gas-water interface. In this paper, we recognize from first principles how injected gas remobilizes initially trapped oil blobs. The two main flow mechanisms which account for this type of remobilization are simulated. These are the double-drainage mechanism and (countercurrent) film flow of oil. The simulations agree qualitatively with experimental findings in the literature. We also simulate steady-state three-phase flow (fixed and equal saturations) in a small segment of a waterwet porous medium under both spreading and nonspreading conditions. The difference between the two conditions with respect to the coefficients in the generalized law of Darcy (which also includes viscous coupling) is investigated. Subject GeosciencesDouble-drainage mechanismFilm flowGeneralized law of DarcyLattice-Boltzmann simulationsOil recoveryPore scaleSpreadingThree-phase flowViscous couplingComputer simulationPorous materialsViscous flowDouble-drainage mechanismsLattice-Boltzmann methodThree phase flowMultiphase flow To reference this document use: http://resolver.tudelft.nl/uuid:3c6f5c0a-39d1-42de-849e-f91f5e40d3c7 DOI https://doi.org/10.1023/a:1006502831641 TNO identifier 234898 Publisher Kluwer Academic Publishers, Dordrecht, Netherlands ISSN 0169-3913 Source Transport in Porous Media, 37 (1), 55-68 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.