2004/07/27 by R. Wang, Tina Pavlin, Wang, R. +13
Medicine · Physics and Astronomy · #Advanced MRI Techniques and Applications #Atomic and Subatomic Physics Research #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #NMR spectroscopy and applications #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.cond-mat/0407710
9 pages, includes 3 figures. submitted for publication in MaIn this work we present measurements of permeability, effective porosity and tortuosity on a variety of rockgnetic Resonance Imaging
arxiv created 2004/07/27 · openalex publication_date 2004/07/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this work we present measurements of permeability, effective porosity and tortuosity on a variety of rock samples using NMR/MRI of thermal and laser-polarized gas. Permeability and effective porosity are measured simultaneously using MRI to monitor the inflow of laser-polarized xenon into the rock core. Tortuosity is determined from measurements of the time-dependent diffusion coefficient using thermal xenon in sealed samples. The initial results from a limited number of rocks indicate inverse correlations between tortuosity and both effective porosity and permeability. Further studies to widen the number of types of rocks studied may eventually aid in explaining the poorly understood connection between permeability and tortuosity of rock cores.