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Transport in Porous Media

, Volume 98, Issue 2, pp 465–484 | Cite as

An Upscaling–Static-Downscaling Scheme for Simulation of Enhanced Oil Recovery Processes

  • Masoud BabaeiEmail author
  • Peter R. King
Article

Abstract

We investigate whether upscaling errors for EOR simulation can be reduced by an upscaling–static-downscaling method where the scales of simulation for the pressure and saturation/concentration switch between coarse simulation model and fine geological model. We apply a static downscaling that has been previously shown to be reliable for water flooding. We use the same algorithm of static downscaling for EOR processes that have been used for water flooding. Different EOR processes are considered: polymer, surfactant and thermal. This range of flooding processes ensures that we are examining more physically complicated systems than water flooding. For these processes, one major difference from water flooding is existence of a secondary front. The effective capturing of this front is a criterion of accuracy for upscaling because, for this front, the coupling of dispersion with the fractional flow creates excessive smearing. A scheme for numerical dispersion control is implemented to both upscaled and downscaled models to determine and reduce the sensitivity to dispersion errors.

Keywords

Upscaling Static downscaling Flux reconstruction  EOR processes Heterogeneous porous media 

Notes

Acknowledgments

The authors would like to thank the editor and the anonymous reviewers for their valuable comments and suggestions to improve the quality of the paper. M.B. also sincerely thanks Prof. M.J. Blunt at Imperial College for constructive suggestions mainly on readability and structure of the paper. Finally, M.B. gratefully appreciates ESPRC-Shell Dorothy Hodgkin Postgraduate scholarship that has enabled him to undertake research at Imperial College London.

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Department of Earth Science & EngineeringImperial College LondonLondonUK

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