Multiphysics and multiscale methods for modeling fluid flow through naturally fractured vuggy carbonate reservoirs

Peter Popov*, Linfeng Bi, Yalchin Efendiev, Richard E. Ewing, Guan Qin, Jianglong Li, Yulin Ren

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

18 Scopus citations

Abstract

We present a novel approach for flow simulations through naturally-fractured vuggy carbonate reservoirs. This approach generalizes upscaling methods which have been successfully used to perform reservoir simulations on geological (fine) scales. Typically, vugular porous media is described using both Stokes and Darcy's equations at the fine-scale. We propose the use of simplified model based on Stokes-Brinkman equations. Stokes and Darcy equations can be obtained from these equations by appropriate choice of parameters. Moreover, in the presence of damaged zones between vugular regions and Darcy regions, Stokes-Brinkman equations allow a seamless transition. The upscaling of fine-scale equations is addressed within homogenization theory. Appropriate local problems are solved to compute the effective permeabilities, which are further used for the simulations on the field scale. We present numerical results for homogeneous and heterogeneous background permeability fields. Our results show that the coarse-scale permeability field is greatly affected when the background permeability is heterogeneous. This is due to the fact that the high flow channels connecting some of the vugs significantly alter the upscaled permeability. We compare the coarse-scale pressure obtained from upscaled equations with the averaged fine-scale pressure. The results are in agreement which indicates that the upscaled models are accurate for practical purposes.

Original languageEnglish (US)
Pages1057-1065
Number of pages9
StatePublished - Jul 2 2007
EventSPE 15th Middle East Oil and Gas Show and Conference, MEOS 2007 - Bahrain, Bahrain
Duration: Mar 11 2007Mar 14 2007

Other

OtherSPE 15th Middle East Oil and Gas Show and Conference, MEOS 2007
CountryBahrain
CityBahrain
Period03/11/0703/14/07

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Multiphysics and multiscale methods for modeling fluid flow through naturally fractured vuggy carbonate reservoirs'. Together they form a unique fingerprint.

Cite this