NMR imaging of materials for transport properties

Details NMR imaging of materials for transport properties NMR imaging of materials for transport properties

1985-08-13

1988-01-12

Levy, Stewart J.

Electricity: measuring and testing

Particle precession resonance

Using well logging device

324307, G01R 3320

Patent

active

047194235

ABSTRACT:
NMR imaging methods are provided for determining spatial diffusion coefficients, formation resistivity factors, mean pore size, and permeability of a porous material. The imaging methods employ a constant magnetic field and two images are obtained for the material, one with a non-imaging gradient and one without a non-imaging gradient. These images are combined to produce diffusion coefficients.

REFERENCES:
patent: 2887673 (1959-05-01), Hahn
patent: 4408161 (1983-10-01), Brown
patent: 4424487 (1984-01-01), Lauffer
patent: 4567440 (1986-01-01), Haselgrove
Analogy Between Diffusion and Electrical Conductivity in Porous Rocks, L. J. Klinkenberg, Bull. of Geol. Soc. of Am., 6/81, vol. 62, pp. 559-564.
NMR Spin-Echo Self-Diffusion Measurements on Fluids Undergoing Restricted Diffusion, D. E. Woessner, J. Phys. Chem., vol. 67, pp. 1365-1367 (1963).
Restricted Self-Diffusion of Protons in Colloidal Systems by the Pulsed-Gradient, Spin-Echo Method, Tanner and Stejskal, Jour. Chem. Phy., vol. 49, No. 4, (1968), pp. 1768-1777.
Molecular Transport Through Assemblages of Microporous Particles, Kocirik and Zikanova, Jour. of Colloid and Inter. Sci., vol. 84, No. 1, 11/81, pp. 240-249.
A Review of Diffusion and Dispersion in Porous Media, Perkins and Johnston, Soc. of Pet. Engin. Jour., Mar. 1963, pp. 70-84.

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