Method for determining oil content of an underground formation using cuttings

摘要

Disclosed is a method for evaluating wet soil and water cuttings to determine the hydrocarbon content of the portion of the formation from which the samples came which comprises: mixing said wet sample with a hydrocarbon solvent having dual functionalities, filtering the solvent/wet cuttings solution, quantitatively measuring the emission fluorescence of the solvated sample with a fluorometer, determining the hydrocarbon content of any hydrocarbon present in the wet cuttings by comparing the emission fluorescence of said solvated cuttings to the emission fluorescence of samples from known sources, wherein correlations are drawn between the emission fluorescence of the samples in solvent at said excitation wavelength band and the emission fluorescence of samples for which the various hydrocarbon concentrations are known.