Multi-measurement NMR analysis based on maximum entropy

Details Multi-measurement NMR analysis based on maximum entropy Multi-measurement NMR analysis based on maximum entropy

2005-11-01

2005-11-01

LeDynh, Bot (Department: 2862)

Electricity: measuring and testing

Particle precession resonance

Using well logging device

Reexamination Certificate

active

06960913

ABSTRACT:
A method is disclosed for extracting information about a system of nuclear spins from a region of an earth formation. Specifically, a set of NMR data is acquired for a fluid sample located either in a borehole or in a laboratory environment. From the set of NMR data, a multi-dimensional distribution is calculated using a mathematical inversion that is independent of prior knowledge of fluid sample properties.

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Hurlimann, M.D. et al., Quantitative Measurement of Two-Dimensional Distribution Functions of Diffusion and Relaxation in Grossly Inhomogenous Fields, Journal of Magnetic Resonance, vol. 157, Jul. 2002, pp. 31-42.

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