Physics-based models of hysteresis in multiphase flow in porous media
Name
1138228067-MIT.pdf
Size
18 MB
Format
Adobe PDF
Checksum (MD5)
dedaad66eba842da54e111f6cb254a5a
Author(s)
Gu, Zongyu,Ph.D.Massachusetts Institute of Technology.
Advisor(s)
Martin Z. Bazant.
Date Issued
2019
Publisher
Massachusetts Institute of Technology
Abstract
We propose a novel probabilistic framework based on pore-scale probabilistic events to derive a theory of hysteresis in multiphase flow in porous media. In particular, we define the pore-space accessivity to contrast the serial and parallel arrangement of different-radius pore slices, and the radius-resolved saturations to detail the pore-scale distribution of immiscible fluids. We show that accessivity can be measured by mercury cyclic porosimetry. Our microscopic theory of hysteresis produces simple formulae that are suitable for use as hysteresis-enabling constitutive laws for capillary pressure and relative permeabilities in conventional continuum simulations of multiphase flow.
Description
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 161-177).
Subjects
Chemical Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Terms of Use
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