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  4. Digital rock physics benchmarks. Pt.II: Computing effective properties
 
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2013
  • Zeitschriftenaufsatz

Titel

Digital rock physics benchmarks. Pt.II: Computing effective properties

Abstract
This is the second and final part of our digital rock physics (DRP) benchmarking study. We use segmented 3-D images (one for Fontainebleau, three for Berea, three for a carbonate, and one for a sphere pack) to directly compute the absolute permeability, the electrical resistivity, and elastic moduli. The numerical methods tested include a finite-element solver (elastic moduli and electrical conductivity), two finite-difference solvers (elastic moduli and electrical conductivity), a Fourier-based Lippmann-Schwinger solver (elastic moduli), a lattice-Boltzmann solver (hydraulic permeability), and the explicit-jump method (hydraulic permeability and electrical conductivity). The set-ups for these numerical experiments, including the boundary conditions and the total model size, varied as well. The results thus produced vary from each other. For example, the highest computed permeability value may differ from the lowest one by a factor of 1.5. Nevertheless, all these result s fall within the ranges consistent with the relevant laboratory data. Our analysis provides the DRP community with a range of possible outcomes which can be expected depending on the solver and its setup.
Author(s)
Andrä, Heiko
Combaret, Nicolas
Dvorkin, Jack
Glatt, Erik
Han, Junehee
Kabel, Matthias
Keehm, Youngseuk
Krzikalla, Fabian
Lee, Minhui
Madonna, Claudio
Marsh, Mike
Mukerji, Tapan
Saenger, Erik H.
Sain, Ratnanabha
Saxena, Nishank
Ricker, Sarah
Wiegmann, Andreas
Zhan, Xin
Zeitschrift
Computers and geosciences
Thumbnail Image
DOI
10.1016/j.cageo.2012.09.008
Language
Englisch
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