A Three-Dimensional Numerical Model for Double Porosity Media with Two Miscible Fluids including Geomechanical Response

Saeed Salimzadeh, Nasser Khalili

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The finite-element formulation of a coupled fluid flow and geomechanics for two-phase fluid flow through fractured porous media is presented. Two porosities, pores and fractures, and five phases are introduced. The two fluids are taken as wetting and non-wetting. The governing equations are derived based on the theory of poroelasticity, the effective stress principle, and the balance equations of mass and momentum, taking into account the solubility of non-wetting fluid into wetting fluid. Spatial and temporal discretisation of the governing equations have been realised through Galerkin method and the finite difference technique, respectively. A three-dimensional numerical code has been developed and validated based on the previously published data in the literature. Various applications of the model have been demonstrated through three field-scale examples.
Original languageEnglish
JournalInternational Journal of Geomechanics
Volume16
Issue number3
Number of pages14
ISSN1532-3641
DOIs
Publication statusPublished - 2015
Externally publishedYes

Keywords

  • Double-porosity medium
  • Fractured reservoirs
  • Two-phase fluid flow
  • Coupled formulation

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