Applied Source Rock Geochemistry
Kenneth E. Peters and Mary Rose Cassa
1994, The petroleum system—from source to trap: AAPG Memoir
60
Applied organic geochemistry provides the information needed
to make maps of the richness, type, and thermal maturity of a source rock.
These maps are a necessary step toward determining the stratigraphic and
geographic extent of a pod of active source rock in a petroleum system, and
they are based on geochemical analyses of rock samples from outcrops and wells
that are displayed on logs. These geochemical well logs are based on Rock-Eval
pyrolysis, total organic carbon, vitrinite reflectance, and other rapid,
inexpensive "screening" methods. The logs define (1) potential,
effective, and spent petroleum source rock; (2) the thermal maturation gradient,
including immature, mature, and postmature zones, and (3) in situ and migrated
petroleum shows. Useful geochemical logs require proper sample selection,
preparation, analysis, and interpretation. Detailed studies, including
oil-source rock correlations by biomarker and supporting techniques, are
undertaken on selected samples only after the screening methods are completed.
KAYNAK
https://www.academia.edu/143684904/Applied_Source_Rock_Geochemistry
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