EXPERIMENTAL INVESTIGATION OF RELATIVE PERMEABILITY UPSCALING FROM THE MICRO-SCALE TO THE MACRO-SCALE Page: 3 of 47
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Abstract: The principal challenge of upscaling techniques for multi-phase fluid dynamics in
porous media is to determine which properties on the micro-scale can be used to predict
macroscopic flow and spatial distribution of phases at core- and field-scales. The most
notable outcome of recent theories is the identification of interfacial areas per volume for
multiple phases as a fundamental parameter that determines much of the multi-phase
properties of the porous medium. A formal program of experimental research was begun to
directly test upscaling theories in fluid flow through porous media by comparing
measurements of relative permeability and capillary-saturation with measurements of
interfacial area per volume. During this reporting period, we have shown experimentally that
the coherence detection can be performed in a borescope. The measurement of interfacial
area per volume (IAV), capillary pressure and saturation in two dimensional micro-models
structures has shown the existence of a unique relationship among these hydraulic parameters
for different pore geometry. The measurement of interfacial area per volume on a three-
dimensional natural sample, i.e., sandstone, is essentially completed for imbibition
conditions.ii
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Pyrak-Nolte, Laura J.; Yu, Ping; Cheng, JiangTao; Chen, Daiquan; Giordano, Nicholas; Mustata, Mirela et al. EXPERIMENTAL INVESTIGATION OF RELATIVE PERMEABILITY UPSCALING FROM THE MICRO-SCALE TO THE MACRO-SCALE, report, December 1, 2002; United States. (https://digital.library.unt.edu/ark:/67531/metadc734512/m1/3/: accessed April 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.