Displacement imaging in porous media using the line scan NMR technique

D. van Dusschoten, J. van Noort, H. van As

Research output: Contribution to journalArticleAcademicpeer-review

10 Citations (Scopus)

Abstract

Displacement imaging is a recent, powerful NMR method with which distributions of displacements can be acquired of e.g. fluids within a porous medium. Both motion parallel and perpendicular to the flow direction may be observed within a time window of a few milliseconds to several seconds. By combining displacement imaging with the line scan technique, one-dimensionally resolved measurements with a high temporal resolution (<1 min) of the spatial dependency of motion can be obtained. Here we present displacement images of flow through two simple model systems for soil: an unconsolidated glass bead water system and a sintered glass bead filter. It is demonstrated that the combination of displacement imaging and spatial resolution along a line is important to access both bulk displacement and local displacements in relation to the local porosity.
Original languageEnglish
Pages (from-to)405-416
JournalGeoderma
Volume80
DOIs
Publication statusPublished - 1997

Keywords

  • hydrodynamics
  • liquids
  • fluids
  • flow
  • porous media
  • nuclear magnetic resonance
  • nuclear magnetic resonance spectroscopy

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