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Publication Citation: Cross-Property Correlations and Permeability Estimation in Sandstone

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Author(s): C H. Arns; M A. Knackstedt; Nicos Martys;
Title: Cross-Property Correlations and Permeability Estimation in Sandstone
Published: October 26, 2005
Abstract: Results from a numerical study examining the cross-property correlations linking fluid permeability to conductive properties and to a number of pore size parameters based on 3D digitized images of sedimentary rock are presented. In particular we focus on correlations based on the pore volume-to-surface-area ratio (Vp/S), a critical channel diameter lc associated with mercury porosimetry measurements, length scales associated with the NMR relaxation time T2, as well as mean survival time . Differences between the length scales are discussed. All correlations give good agreement but permeability estimates based on the critical diameter lc are found to be most reliable.
Citation: Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)
Keywords: critical path length,cross-correlation,Fontainebleau sandstone,formation factor,NMR-T2,surface-to-volume ratio
Research Areas: Building and Fire Research