Optics: measuring and testing – By dispersed light spectroscopy
Patent
1991-06-03
1992-10-13
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
356319, G01J 300
Patent
active
051555468
ABSTRACT:
A method for quantitatively determining the total organic carbon and vitrinite reflectance of rocks and sediments utilizes the entire visible light spectrum. A sample is prepared and placed in a spectrophotometer. The spectrophotometer has a light source that produces the entire visible light spectrum. A monochromator passes narrow wavelength bands of the source light therethrough to illuminate the sample. The total diffuse reflectance spectrum is obtained from the sample using the spectrophotometer. The reflectance spectral data are processed by determining the first derivative and by comparing it to calibration data of known total organic carbon and vitrinite reflectance.
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Holden et al, "The Observation of Spectral Variation Indicative of Prophyrin Biomarkers in Reflectance Spectra of Source Rock: The Application of Remote Sensing Technology to Petroleum Geochemistry", Seventh Thematic Conference on Remote Sensing for Exploration Geology, Oct. 2-6, 1989.
Balsam William L.
Deaton Bobby C.
Evans F. L.
Hantis K. P.
Mantooth Geoffrey A.
Texas Wesleyan University, Inc.
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