Radiant energy – Geological testing or irradiation – With sampling
Patent
1980-10-14
1982-03-23
Smith, Alfred E.
Radiant energy
Geological testing or irradiation
With sampling
250301, 250341, 250252, G01V 500, G01J 100, G01D 1800
Patent
active
043214657
ABSTRACT:
A method for determining kerogen content in oil shale is disclosed. The kerogen content of oil shale is measured by transmitting light of the infrared region of the electromagnetic spectrum through a sample containing comminuted oil shale and determining the amount of light absorbed by the kerogen in such sample. The amount of light of a selected wave number absorbed by the sample of comminuted oil shale is proportional to the Fischer Assay determination of kerogen content of such a sample. An internal standard having an absorbance within the infrared region of the electromagnetic spectrum at a wave number other than wherein oil shale has an absorbance is integrated into the sample of oil shale for providing an indication of the kerogen content within the oil shale sample upon comparison of the relative absorbance at the respective wave number of selected infrared light for the internal standard and the kerogen.
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Shaks, et al., "Infrared Spectra of Organic Minerals", Tr. Vses. Neft. Nauchno-Issled. Geologorazved. Inst., 1974, pp. 329, 131 (Chem. Abs., vol. 84, 76638u, 1976).
Robin, et al., "Contribution of Molecular Water in the Infrared Spectra of Kerogens and Coals", Fuel, 1976, 55(3), pp. 177-183 (Chem. Abs., vol. 85, 110688t, 1976).
Espitalie, et al., "Etude de la Matiere Organique Insoluble (Kerogene) des Argiles du Toarcim du Bassin de Paris", Revue de L'Institut Francais du Petrole, vol. 28, No. 1, Jan. 1973, pp. 37-66.
Compton Leslie E.
Stover Carole S.
Fields Carolyn E.
Occidental Research Corporation
Smith Alfred E.
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