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AAPG Bulletin
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AAPG Bulletin; Year: 2019; Issue: January DOI: 10.1306/05111817249
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Figure 5. (A) Transformation ratio versus temperature for Cooper Basin bulk kinetics from Deighton et al. (2003) and Mahlstedt et al. (2015) compared with generic kinetics for organofacies D/E and F from Pepper and Corvi (1995a). Geological heating rate: 3°C/m.y. (B) Relationship between residual hydrogen index (HI) and maturity for the Patchawarra Formation (Fm). Lines: Patchawarra Fm bulk kinetics using an original HI of 300 mg hydrocarbons (HC)/g total organic carbon (TOC). Dots: observed Patchawarra Fm Rock-Eval pyrolysis data maturity trend. Samples with vitrinite reflectance (Ro) < 0.7% are excluded because of HI suppression (Boreham et al., 1999; Sykes and Snowdon, 2002). Sh. = Shale; Tmax = a laboratory measurement obtained from Rock-Eval pyrolysis, indicating the stage of maturation of organic matter.
Figure 5. (A) Transformation ratio versus temperature for Cooper Basin bulk kinetics from Deighton et al. (2003) and Mahlstedt et al. (2015) compared with generic kinetics for organofacies D/E and F from Pepper and Corvi (1995a). Geological heating rate: 3°C/m.y. (B) Relationship between residual hydrogen index (HI) and maturity for the Patchawarra Formation (Fm). Lines: Patchawarra Fm bulk kinetics using an original HI of 300 mg hydrocarbons (HC)/g total organic carbon (TOC). Dots: observed Patchawarra Fm Rock-Eval pyrolysis data maturity trend. Samples with vitrinite reflectance (Ro) < 0.7% are excluded because of HI suppression (Boreham et al., 1999; Sykes and Snowdon, 2002). Sh. = Shale; Tmax = a laboratory measurement obtained from Rock-Eval pyrolysis, indicating the stage of maturation of organic matter.