Patent ID: 11885790
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method, comprising:
performing pyrolysis on a source rock, wherein performing pyrolysis on the source rock comprises heating the source rock in an oven;
obtaining pyrolysis data on the source rock based on performing pyrolysis on the source rock;
determining a hydrocarbon generative potential (S2) of kerogen in the source rock from the pyrolysis data;
determining a total organic carbon (TOC) content (in weight %) of the source rock from the pyrolysis data;
determining a maturity of the reservoir (% Ro) from S2 and TOC;
determining a ratio of an oil specific gravity of the source rock to a density of the source rock (API) using the equation

API=Ln(% Ro/0.2534)/.0345;

obtaining x-ray diffraction (XRD) data for the source rock; and
determining an additional parameter from the pyrolysis data, the X-ray diffraction (XRD) data, or both.