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Revista mexicana de física
Print version ISSN 0035-001X
Abstract
MARQUEZ, R and ARAUJO, M. Wavelet analysis for upscaling of two dimensional permeability fields. Rev. mex. fis. [online]. 2006, vol.52, suppl.3, pp.76-80. ISSN 0035-001X.
We use a multiresolution analysis based on a wavelet transform to upscale two-dimensional heterogeneous permeability fields. Results are compared with conventional averaging upscaling schemes using arithmetic, geometric and harmonic averaging. It is found that the wavelet analysis is able to preserve the fine scale heterogeneous features with the increase of the coarse scale size significantly better than the averaging methods, while preserving information required for downsizing the properties of the system.
Keywords : Wavelet transform; upscaling; permeability field; heterogeneity.