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

Claim 15:
16. A method of evaluating a source rock, the method comprising:
performing pyrolysis on the source rock, wherein performing pyrolysis on the source rock comprises heating the source rock in an oven;
obtaining pyrolysis data for 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; and

determining a percent loss of a C15+ fraction (% Loss n−C15+) of bitumen of the source rock using the equation

% Loss n−C15+=API/7.2379(1/.4508).