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Observation of the relaxivity and thickness of surface phase in porous rock with the combination of PFG NMR and relaxation measurements 被引量:4

Observation of the relaxivity and thickness of surface phase in porous rock with the combination of PFG NMR and relaxation measurements
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摘要 Nuclear magnetic resonance (NMR) relaxation of fluids in porous media is affected by the solid-liquid interface. Quantitative determination of the surface relaxivity is significantly important for both investigation and application of relaxation mechanisms in porous media. A method to estimate the surface relaxivity with the combination of relaxation and diffusion measurements is proposed. According to this method, a criterion for testing the current diffusion and relaxation theory for porous media is available. Nuclear magnetic resonance (NMR) relaxation of fluids in porous media is affected by the solid-liquid interface. Quantitative determination of the surface relaxivity is significantly important for both investigation and application of relaxation mechanisms in porous media. A method to estimate the surface relaxivity with the combination of relaxation and diffusion measurements is proposed. According to this method, a criterion for testing the current diffusion and relaxation theory for porous media is available.
出处 《Science China Mathematics》 SCIE 1996年第9期974-980,共7页 中国科学:数学(英文版)
关键词 ROCK surface RELAXIVITY PFG NMR Bi-exponential decomposition. rock,surface relaxivity, PFG NMR, Bi-exponential decomposition.
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