In their recent paper, Ruble et al. (2001) use hydrous pyrolysis experiments to correlate oils to source rocks and to derive kinetic parameters for potential source facies in the Green River Formation, Uinta basin. They then use these correlations and kinetic parameters in a basin model to explain the occurrence of overpressured producing intervals. This discussion focuses on their results for the calculation of hydrocarbon-generation kinetics from hydrous pyrolysis data.

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The temperatures of generation predicted by the hydrous pyrolysis-derived kinetics in Ruble et al. (2001) are not consistent with data at either geological or laboratory timescales. This lack of consistency...

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