Theoretical and experimental study of resonance of blobs in porous media-Reference-Cited by-同舟云学术

Theoretical and experimental study of resonance of blobs in porous media

Published:2012-09-01 Issue:5 Volume:77 Page:EN61-EN71
ISSN:0016-8033
Container-title:GEOPHYSICS
language:en
Short-container-title:GEOPHYSICS

Author:

Hsu Shao-Yiu¹,Katz Joseph²,Hilpert Markus¹

Affiliation:

1. Johns Hopkins University, Department of Geography and Environmental Engineering, Baltimore, Maryland, USA..

2. Johns Hopkins University, Department of Mechanical Engineering, Baltimore, Maryland, USA..

Abstract

We theoretically and experimentally investigated the frequency response of blobs in porous media to an oscillatory pressure difference. (The term blob refers to a connected liquid mass that occupies one or more pores.) To predict the frequency response analytically, we formulated a simple model pore system consisting of a blob in a capillary tube. This model accounts for the frequency-dependent viscous pressure drops in the blob and the surrounding liquid and for the dynamic capillary pressure that occurs due to contact line pinning. By using the planar laser-induced fluorescence technique, we visualized the dynamic response of blobs in porous media. As predicted by our theory, air and liquid blobs surrounded by an immiscible liquid exhibited resonance in a capillary tube. Furthermore, we showed, for the first time, that a liquid blob in a sphere-packing medium exhibits resonance.

Publisher

Society of Exploration Geophysicists

Subject

Geochemistry and Petrology,Geophysics

Link

https://library.seg.org/doi/pdf/10.1190/geo2012-0043.1

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