A Short Note On Permeability Anisotropy In Heterogeneous Porous Media
Name
1992.8 Zhao_Toksoz.pdf
Size
471.66 KB
Format
Adobe PDF
Checksum (MD5)
13f0f4c70c0c75490ba9521ee504ca25
Author(s)
Zhao, Xiaomin
Toksoz, M. Nafi
Date Issued
1992
Publisher
Massachusetts Institute of Technology. Earth Resources Laboratory
Series/Report no.
Earth Resources Laboratory Industry Consortia Annual Report;1992-08
Abstract
This paper presents some new results of theoretical modeling on permeability anisotropy
in heterogeneous porous media. It is shown that the lineation of heterogeneities results
·in permeability anisotropy. However, to produce strong anisotropy, the permeability
contrast between the lineated high permeability region and the background must be
very high. We demonstrate this using two examples. The first is the fracture model
in which the background has negligible permeability compared to the fractures. In the
second example the fractures are replaced by impermeable stripes and the background
has high permeability. In both cases permeability anisotropy with an order of magnitude
difference is produced. These results compare well with the results of laboratory
experiments performed to evaluate permeability anisotropy.
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