Pore-scale fluid dynamics resolved in pressure fluctuations at the Darcy scale
Author(s)
Type
Journal Article
Abstract
Complex pore-scale dynamics have been observed during multiphase flow through porous rocks. These dynamics are not incorporated in large scale models for the migration and trapping of subsurface fluids such as CO2 or hydrogen. We show that fluctuations in pressure measured at the core-scale (centimeters) can reflect fluid displacements at the pore-scale (millimeters). The spectral characteristics of pressure data are shown to depend on the flow dynamics, the size of the rock sample, and the heterogeneity of the pore space. These results show that pressure data, transformed into the time-frequency domain using wavelets, provides information about flow dynamics, across scales, that are otherwise challenging to acquire.
Date Issued
2023-09-28
Date Acceptance
2023-08-24
Citation
Geophysical Research Letters, 2023, 50 (18)
ISSN
0094-8276
Publisher
Wiley
Journal / Book Title
Geophysical Research Letters
Volume
50
Issue
18
Copyright Statement
© 2023. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:001066651600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
BRINE
BUBBLE
CO2 PLUME
ENERGY-SPECTRA
Geology
Geosciences, Multidisciplinary
MEDIA
MULTIPHASE FLOW
Physical Sciences
RELATIVE PERMEABILITY
SANDSTONE
Science & Technology
Publication Status
Published
Article Number
e2023GL104473
Date Publish Online
2023-09-19