Patent ID: 11940398
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Measurement (Instruments)
Classification: CPC G  E | IPC E  G

Claim 14:
15. A system comprising:
a scanning electron microscope (SEM) configured to form an SEM image of a cross-section through a plurality of rock samples;
a computer processor, configured to:
for each of the plurality of the rock samples,
receive a bulk density and a grain density,
determine a first porosity value based, at least in part, on the bulk density and the grain density,
from the SEM image:
determine a second porosity value; and
determine an amount of organic matter, and
determine a thermal maturity index based, at least in part, on the first porosity value, the second porosity value and the amount of organic matter; and

determine a thermal maturity model based, at least in part, on the thermal maturity index for each of the plurality of rock samples.