Challenge: Accurately calculate the oil
content for a low-resistivity chert reservoir where the conventional Archie
parameters are not confidently known.
Solution: Directly measure the elemental
concentration of total carbon with Litho Scanner high-definition spectroscopy
service, from which the amount of inorganic carbon associated with carbonate
minerals is subtracted to determine the organic carbon (Corg)
and in turn the oil volume without having to rely on the subdued resistivity
logging response from the chert reservoir.
Results: Quantified the oil content based on
the oil volume from the Litho Scanner services Corg
determination.