Startseite Two-phase water flooding simulations on dynamic adaptive octree grids with two-point nonlinear fluxes
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Two-phase water flooding simulations on dynamic adaptive octree grids with two-point nonlinear fluxes

  • K. Terekhov und Yu. Vassilevski EMAIL logo
Veröffentlicht/Copyright: 1. Juni 2013

Abstract

We present a method for numerical simulation of the two-phase water flooding problem on general polyhedral grids not aligned with permeability tensor K (K-nonorthogonal grids) and dynamic octree grids adapted to the front between the phases. The discretization is based on the cell-centered monotone finite volume (FV) method with the nonlinear two-point flux approximation (TPFA) applicable to general K-non-orthogonal polyhedral grids. We use fully implicit discretization in time to avoid the restriction on the time step caused by the minimal mesh size. In our numerical experiments we demonstrate the superiority of the nonlinear TPFA on a K-non-orthogonal grid over linear TPFA and considerable speed-up of the simulation on a dynamically adapted octree grid with minimal loss in accuracy compared to the simulation on a fine regular grid.


This work was carried out under the auspices of ExxonMobil Upstream Research Company and has been partly supported by RFBR grants 11-01-00971, 12-01-31223, 12- 01-31275, 12-01-33084, Federal contracts 14.740.11.1389, 14.514.11.4057, and Rosatom project ‘Breakthrough’.

Published Online: 2013-06-01
Published in Print: 2013-06

© 2013 by Walter de Gruyter GmbH & Co.

Heruntergeladen am 9.9.2025 von https://www.degruyterbrill.com/document/doi/10.1515/rnam-2013-0016/pdf
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