Compositional dual mesh method for single phase flow in heterogeneous porous media -Application to CO2 storage

Dominique Guerillot, J. Bruyelle

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The geological static models of realistic contexts are described with high resolution meshes (HRM) and cannot be directly used as input for fluid flow reservoir simulators due to memory and/or running time constraints. The pragmatic approach consists in averaging the high resolution petrophysical values to assign to a low resolution mesh (LRM) used to perform reservoir simulations. Hence, predictions made with these coarser meshes are inevitably less accurate than those that would have been obtained on HRM. For compositional modelling, the loss of accuracy due to upscaling processes will come not only for the component displacements but also from the solution of the thermodynamic and/or geochemical equilibrium equations. For example, a chemical reaction of an acid on carbonated rock may highly depends on its concentration. Therefore, our main motivation here is to keep an HRM for calculating those chemical equilibriums. We propose to name this innovative approach "Compositional Dual Mesh Method" (CDMM). The CDMM is a formulation with two different meshes: The pressure equation is solved on a LRM using upscaled properties and the transport equation and chemical equilibrium are solved on a HRM.

Original languageEnglish
Title of host publication15th European Conference on the Mathematics of Oil Recovery, ECMOR 2016
PublisherEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Electronic)9462821933, 9789462821934
Publication statusPublished - 2016
Externally publishedYes
Event15th European Conference on the Mathematics of Oil Recovery, ECMOR 2016 - Amsterdam, Netherlands
Duration: 29 Aug 20161 Sep 2016

Other

Other15th European Conference on the Mathematics of Oil Recovery, ECMOR 2016
CountryNetherlands
CityAmsterdam
Period29/8/161/9/16

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ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Energy Engineering and Power Technology
  • Geotechnical Engineering and Engineering Geology

Cite this

Guerillot, D., & Bruyelle, J. (2016). Compositional dual mesh method for single phase flow in heterogeneous porous media -Application to CO2 storage. In 15th European Conference on the Mathematics of Oil Recovery, ECMOR 2016 European Association of Geoscientists and Engineers, EAGE.