Shandal Geological Field Survey System · geologicalfieldsurvey.com
Samples0in this session
Hydrogen index (last)—mg HC/g TOC
Kerogen type (last)——
Maturity (last)——
1
Petroleum potential · HI vs TOC
TOC on a log scale against hydrogen index. Vertical lines mark poor, fair, good and very good organic richness; horizontal lines separate gas-prone, mixed and oil-prone organic matter.
2
Kerogen type · pseudo-Van Krevelen
Hydrogen index against oxygen index with the evolution paths of kerogen types I, II and III. Samples move toward the origin as they mature.
3
Maturity · HI vs Tmax
Tmax below 435 °C indicates immature organic matter, 435–470 °C the oil window, and above 470 °C the gas window (Peters & Cassa, 1994).
Sample record
| Sample | TOC | S1 | S2 | S3 | Tmax | HI | OI | PI | Ro calc. | Richness | Product | Kerogen | Maturity |
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