Patent ID: 6377042
Filing Date: 2002-04-23
Classification: G01N,G01R

Abstract:
A method for conducting NMR logging measurements, comprising:(a) providing at least one first echo train acquired using a first set of echo train parameters, said at least one first echo train carrying information concerning a first type of NMR signals; (b) providing at least one second echo train acquired using a second set of echo train parameters, said at least one second echo train carrying information concerning a second type of NMR signals having relaxation characteristics relatively slow compared with the first type of NMR signals; (c) computing an artificial, exponentially decaying third echo train based on information concerning the first and second type of NMR signals: (d) merging said at least one first and said at least one second echo trains in the time domain to obtain a merged echo train carrying information concerning both the first and the second type of NMR signals, said merging step comprising amplitude adjusting of said at least one first echo train to said at least one second echo train using the computed, exponentially decaying third echo train.