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SUMMARY:T Upscaling Permeability in a Laboratory Context - Mathematics and
  Modelling - Patrick Selvadurai\, McGill University
DTSTART:20100430T140000Z
DTEND:20100430T150000Z
UID:TALK23784@talks.cam.ac.uk
CONTACT:Ms Helen Gardner
DESCRIPTION:Permeability is a key parameter important to a variety of appl
 ications in geological engineering and in the environmental geosciences. T
 he conventional definition of Darcy flow enables the estimation of permeab
 ility at different levels of detail. This lecture will focus on the measur
 ement of surface permeability characteristics of a large cuboidal block of
  Indiana Limestone\, using a surface permeameter. The paper discusses the 
 theoretical developments\, the solution of the resulting triple integral e
 quations and associated computational treatments that enable the mapping o
 f the near surface permeability of the cuboidal region. Other forms of tra
 nsient pulse tests for interface regions are also discussed. This data com
 bined with a kriging procedure is used to develop results for the permeabi
 lity distribution at the interior of the cuboidal region. Upon verificatio
 n of the absence of dominant pathways for fluid flow through the cuboidal 
 region\, estimates are obtained for the “Effective Permeability” of th
 e cuboid using estimates proposed by the Wiener bounds\, Landau and Lifsch
 itz\, King\, Matheron\, Journel et al.\, Dagan and others. The results of 
 these estimates are compared with the geometric mean\, derived form the co
 mputational estimates.
LOCATION:Oatley Seminar Room\, Department of Engineering
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