Nmr instrument and technique utilizing ultrashortened...

Details Nmr instrument and technique utilizing ultrashortened... Nmr instrument and technique utilizing ultrashortened...

G - Physics

01

N

324/1

G01N 24/08 (2006.01) G01R 33/46 (2006.01) G01V 3/14 (2006.01)

Patent

CA 1210448

ABSTRACT OF THE DISCLOSURE COMPUTER-CONTROLLED, PORTABLE PULSED NMR INSTRUMENT AND METHOD OF USE WHEREIN DEPOLARIZATION IS ULTRASHORTENED USING PSEUDO RANDOMLY SPACED AND ORIENTED RF DEPOLARIZATION PULSES In accordance with the present invention, fluid- flow properties of a rock sample based on NMR response of the hydrogen nuclei of interstitial fluids within the pore space of such sample, can be swiftly and accurately achieved using a computer-controlled, portable NMR instrument. Inherent instrument inadequacy of a DC field inhomogeneity is controllably augmented by a depolarizing code (provided via a computer-controller controlling a transmitter-pulser) to ensure complete magnetic memory erasing prior to a new measuring cycle. Result: Even though the instrument is placed at field sites away from the usual processing center, quick analysis of rock samples as during the drilling of a well, results.

456739

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