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A method is presented to estimate thermal maturity and concentration of sedimentary organic matter (kerogen) in organic-rich mudrocks using diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). The maturity estimate is based on stochastic regression model built on a diverse set of mudrocks containing type II kerogen and spanning a range of age, lithology, kerogen content, and maturity...
The chemical and physical structure of immobile organic matter partially controls both the thermal evolution of organic rich shales and hydrocarbon production from these unconventional fossil fuel resources. This organic matter is typically classified into two fractions: kerogen, which is defined as insoluble in organic solvent and bitumen, which is defined as soluble. Kerogen and bitumen are complex...
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