Phys. Rev. Lett. 83, 3324–3327 (1999)Probing Porous Media with Gas Diffusion NMR
We show that gas diffusion nuclear magnetic resonance (GD-NMR) provides a powerful technique for probing the structure of porous media. In random packs of glass beads, using both laser-polarized and thermally polarized xenon gas, we find that GD-NMR can accurately measure the pore space surface-area–to–volume ratio, S/Vp, and the tortuosity, α (the latter quantity being directly related to the system's transport properties). We also show that GD-NMR provides a good measure of the tortuosity of sandstone and complex carbonate rocks. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.3324
DOI:
10.1103/PhysRevLett.83.3324
PACS:
81.05.Rm, 47.55.Mh, 66.10.Cb, 76.60.-k
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