NUCLEAR MAGNETIC RESONANCE TESTING FOR ORGANICS AND FLUIDS IN SOURCE AND RESERVOIR ROCK

摘要

A method of analyzing a geologic sample by NMR is provided for detecting the presence of organic solid and semi-solid materials and saturating fluids by comparing the results of a baseline NMR pulse sequence test with the results of a magnetization transfer contrast NMR pulse sequence test wherein the magnetization transfer NMR test involves a first application of a magnetization transfer contrast preparation RF pulse sequence sufficient to decrease or destroy magnetization coherence attributable to any organic solid and semisolid materials that might be in the geologic sample followed by application of the baseline NMR pulse sequence.