Portable pulsed nmr instrument and method of use

Details Portable pulsed nmr instrument and method of use Portable pulsed nmr instrument and method of use

G - Physics

01

V

324/1.2

G01V 3/32 (2006.01)

Patent

CA 1179016

ABSTRACT OF THE DISCLOSURE "PORTABLE PULSED NMR INSTRUMENT AND METHOD OF USES" In accordance with the present invention, fluid-flow properties of a rock sample based on NMR response of the hydro- gen nuclei of interstitial fluids within the pore space of such sample, can be swiftly and accurately achieved using a portable NMR instrument. Inherent instrument inadequacies (DC field inhomogeneity and large phase background jitter) are themselves relied upon to increase the data-throughput efficiency, i.e., the number of NMR responses performed per unit time. 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, still results. Also, effects of possible echoes during subsequent measurements are prevented by using both the inhomogeneities of the DC field and the essen- tially random phase spectrum that is inherent in the instrument to average out echoes of prior generated NMR responses .

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