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Fast 4‐D Imaging of Fluid Flow in Rock by High‐Speed Neutron Tomography

Tudisco, Erika LU ; Etxegarai, Maddi; Hall, Stephen LU ; Charalampidou, Elli-Maria; Couples, Gary D.; Lewis, Helen; Tengattini, A. and Kardjilov, Nikolay (2019) In Journal of Geophysical Research: Solid Earth
Abstract
High‐speed neutron tomographies (1‐min acquisition) have been acquired during water invasion into air‐filled samples of both intact and deformed (ex situ) Vosges sandstone. Three‐dimensional volume images have been processed to detect and track the evolution of the waterfront and to calculate full‐field measurement of its speed of advance. The flow process correlates well with known rock properties and is especially sensitive to the distribution of the altered properties associated with observed localized deformation, which is independently characterized by Digital Volume Correlation of X‐ray tomographies acquired before and after the mechanical test. The successful results presented herein open the possibility of in situ analysis of the... (More)
High‐speed neutron tomographies (1‐min acquisition) have been acquired during water invasion into air‐filled samples of both intact and deformed (ex situ) Vosges sandstone. Three‐dimensional volume images have been processed to detect and track the evolution of the waterfront and to calculate full‐field measurement of its speed of advance. The flow process correlates well with known rock properties and is especially sensitive to the distribution of the altered properties associated with observed localized deformation, which is independently characterized by Digital Volume Correlation of X‐ray tomographies acquired before and after the mechanical test. The successful results presented herein open the possibility of in situ analysis of the local evolution of hydraulic properties of rocks due to mechanical deformation. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
fluid flow characterization, neutron tomography, sandstone, sandstone shear bands
in
Journal of Geophysical Research: Solid Earth
publisher
Wiley-Blackwell
ISSN
2169-9313
DOI
10.1029/2018JB016522
language
English
LU publication?
yes
id
55aaf580-56ec-4132-8cdc-ad9baff5655c
date added to LUP
2019-04-26 11:44:55
date last changed
2019-05-09 13:36:21
@article{55aaf580-56ec-4132-8cdc-ad9baff5655c,
  abstract     = {High‐speed neutron tomographies (1‐min acquisition) have been acquired during water invasion into air‐filled samples of both intact and deformed (ex situ) Vosges sandstone. Three‐dimensional volume images have been processed to detect and track the evolution of the waterfront and to calculate full‐field measurement of its speed of advance. The flow process correlates well with known rock properties and is especially sensitive to the distribution of the altered properties associated with observed localized deformation, which is independently characterized by Digital Volume Correlation of X‐ray tomographies acquired before and after the mechanical test. The successful results presented herein open the possibility of in situ analysis of the local evolution of hydraulic properties of rocks due to mechanical deformation.},
  author       = {Tudisco, Erika and Etxegarai, Maddi and Hall, Stephen and Charalampidou, Elli-Maria and Couples, Gary D. and Lewis, Helen and Tengattini, A. and Kardjilov, Nikolay},
  issn         = {2169-9313},
  keyword      = {fluid flow characterization,neutron tomography,sandstone,sandstone shear bands},
  language     = {eng},
  month        = {04},
  publisher    = {Wiley-Blackwell},
  series       = {Journal of Geophysical Research: Solid Earth},
  title        = {Fast 4‐D Imaging of Fluid Flow in Rock by High‐Speed Neutron Tomography},
  url          = {http://dx.doi.org/10.1029/2018JB016522},
  year         = {2019},
}