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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Heriot-Watt University
  • University Grenoble Alpes
  • Institut Laue Langevin
  • Helmholtz-Zentrum Berlin for Materials and Energy
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Geoteknik
  • Medicinsk bildbehandling

Nyckelord

Originalspråkengelska
Sidor (från-till)3557-3569
TidskriftJournal of Geophysical Research: Solid Earth
Volym124
Utgivningsnummer4
StatusPublished - 2019 apr 1
PublikationskategoriForskning
Peer review utfördJa

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