Relationships between maturity and hydrocarbon generation

Different types of kerogens convert to hydrocarbons at different rates, and they yield different quantities of various hydrocarbon phases. Therefore, one standard relationship between a measured maturity parameter and hydrocarbon generation does not exist. Values such as 0.6% vitrinite reflectance (R_o) are generally associated with the onset of oil generation or indicate the top of the oil window. However, this generality applies only if a source rock is composed of pure type II organic matter (marine kerogen).

See also

• Kerogen type and hydrocarbon generation
• Kerogen type and maturity
• Kerogen type and transformation ratio
• Kerogen types: comparison of maturity measures
• Open- vs closed-system generation modeling
• Thermal maturation

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