Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

The Influence of Heterogeneity and Confining Pressure on the Hydromechanics of a Sandstone Using Neutron and X-Ray Imaging

Vieira Lima, F. LU ; Hall, S. LU ; Engqvist, J. LU orcid ; Tudisco, E. LU orcid ; Woracek, R. ; Tengatini, A. and Vestin, P. LU (2025) 5th International Symposium on Geomechanics from Micro to Macro, IS-Grenoble 2024 In IOP Conference Series: Earth and Environmental Science 1480.
Abstract

This study utilizes advanced 3D imaging techniques, combining X-ray and neutron tomography, to investigate the hydromechanical evolution of Idaho Gray sandstone during coupled triaxial permeability tests. The analysis involved correlating mechanical and hydraulic bulk measurements, porosity fields, strain fields derived from Digital Volume Correlation analysis and fluid speed fields derived from time series of neutron tomograms. This experimental approach provides an improved understanding of the relationship between the volume of active pores and bulk hydraulic conductivity on our samples. In particular, the results reveal that the confining pressure and rock porosity heterogeneity play crucial roles in global and local mechanisms,... (More)

This study utilizes advanced 3D imaging techniques, combining X-ray and neutron tomography, to investigate the hydromechanical evolution of Idaho Gray sandstone during coupled triaxial permeability tests. The analysis involved correlating mechanical and hydraulic bulk measurements, porosity fields, strain fields derived from Digital Volume Correlation analysis and fluid speed fields derived from time series of neutron tomograms. This experimental approach provides an improved understanding of the relationship between the volume of active pores and bulk hydraulic conductivity on our samples. In particular, the results reveal that the confining pressure and rock porosity heterogeneity play crucial roles in global and local mechanisms, strain field evolution and fluid flow dynamics.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
IOP Conference Series: Earth and Environmental Science
series title
IOP Conference Series: Earth and Environmental Science
volume
1480
edition
1
pages
4 pages
publisher
IOP Publishing
conference name
5th International Symposium on Geomechanics from Micro to Macro, IS-Grenoble 2024
conference location
Grenoble, France
conference dates
2024-09-23 - 2024-09-27
external identifiers
  • scopus:105003416505
ISSN
1755-1307
DOI
10.1088/1755-1315/1480/1/012002
language
English
LU publication?
yes
additional info
Publisher Copyright: © Published under licence by IOP Publishing Ltd.
id
aa4dd352-bc52-4277-8594-885158c2cf97
date added to LUP
2025-05-12 08:51:25
date last changed
2025-05-19 13:42:12
@inproceedings{aa4dd352-bc52-4277-8594-885158c2cf97,
  abstract     = {{<p>This study utilizes advanced 3D imaging techniques, combining X-ray and neutron tomography, to investigate the hydromechanical evolution of Idaho Gray sandstone during coupled triaxial permeability tests. The analysis involved correlating mechanical and hydraulic bulk measurements, porosity fields, strain fields derived from Digital Volume Correlation analysis and fluid speed fields derived from time series of neutron tomograms. This experimental approach provides an improved understanding of the relationship between the volume of active pores and bulk hydraulic conductivity on our samples. In particular, the results reveal that the confining pressure and rock porosity heterogeneity play crucial roles in global and local mechanisms, strain field evolution and fluid flow dynamics.</p>}},
  author       = {{Vieira Lima, F. and Hall, S. and Engqvist, J. and Tudisco, E. and Woracek, R. and Tengatini, A. and Vestin, P.}},
  booktitle    = {{IOP Conference Series: Earth and Environmental Science}},
  issn         = {{1755-1307}},
  language     = {{eng}},
  publisher    = {{IOP Publishing}},
  series       = {{IOP Conference Series: Earth and Environmental Science}},
  title        = {{The Influence of Heterogeneity and Confining Pressure on the Hydromechanics of a Sandstone Using Neutron and X-Ray Imaging}},
  url          = {{http://dx.doi.org/10.1088/1755-1315/1480/1/012002}},
  doi          = {{10.1088/1755-1315/1480/1/012002}},
  volume       = {{1480}},
  year         = {{2025}},
}