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Fluid substitution in porous rocks with aligned cracks: Theory versus numerical modeling

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Date

2018

Authors

Brown, Luke
Gurevich, Boris
Makarynska, Dina
Arns, Christoph
Knackstedt, Mark

Journal Title

Journal ISSN

Volume Title

Publisher

Society of Exploration Geophysicists

Abstract

The effect of penny-shaped cracks on the elastic properties of porous media is modeled using static finite element modeling (FEM) code. Anisotropic Gassmann theory is used to predict the effective properties of the saturated cracked media from their dry properties. There is an excellent agreement between numerical results and theory, with a small error associated with partially inequilibrated patches of fluid in the FEM. These patches of fluid result in a residual stiffness which can be subtracted from the FEM results to further improve agreement with Gassmann theory.

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Keywords

Citation

URI

http://hdl.handle.net/1885/209057

Collections

ANU Research Publications

Source

78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008

Type

Conference paper

Book Title

Entity type

Access Statement

License Rights

DOI

10.1190/1.2369884

Restricted until

2037-12-31

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01_Brown_Fluid_substitution_in_porous_2018.pdf (410.08 KB)

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