Figure 4.15: Rock-Eval pyrolysis data plots for the Murteree Shale: a) TOC content vs S1 yield; b) TOC content vs S2 yield, c) OI vs HI content; d) Tmax vs HI. Purple dots: effective source rocks (TOC > 2%; S1 + S2 > 3 mg HC/g rock); red dots: samples with either no original generation potential or are spent source rocks. Figure 4.16: Murteree Shale present day TOC map. Figure 4.17: Measured maturity sequence for the Murteree Shale, compared with the Cooper Basin bulk kinetics. Red dots: samples with measured Ro and associated errors. Purple dots: Ro calculated using the Cooper specific Tmax-Ro conversion equation. Solid lines: HI reduction with Ro as defined by the combined Forge 1 and Gidgealpa 6 kinetics, calculated for end member HIo values defined in Table 4.4. Samples with Tmax 435°C ≤ (Ro < 0.7%) are excluded from the plot due to possible HI suppression at low maturities in coaly facies.
Figure 4.15: Rock-Eval pyrolysis data plots for the Murteree Shale: a) TOC content vs S1 yield; b) TOC content vs S2 yield, c) OI vs HI content; d) Tmax vs HI. Purple dots: effective source rocks (TOC > 2%; S1 + S2 > 3 mg HC/g rock); red dots: samples with either no original generation potential or are spent source rocks. Figure 4.16: Murteree Shale present day TOC map. Figure 4.17: Measured maturity sequence for the Murteree Shale, compared with the Cooper Basin bulk kinetics. Red dots: samples with measured Ro and associated errors. Purple dots: Ro calculated using the Cooper specific Tmax-Ro conversion equation. Solid lines: HI reduction with Ro as defined by the combined Forge 1 and Gidgealpa 6 kinetics, calculated for end member HIo values defined in Table 4.4. Samples with Tmax ≤ 435°C (Ro < 0.7%) are excluded from the plot due to possible HI suppression at low maturities in coaly facies.