Other
Scientific paper
Jul 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993gecoa..57.3261p&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 57, no. 14, p. 3261-3280.
Other
20
Chemical Composition, Crude Oil, Geochemistry, Hydrocarbons, Thermal Stability, Metamorphism (Geology), Paraffins, Pyrolysis
Scientific paper
Accepted petroleum-geochemical paradigms place rigid limits on hydrocarbon (HC) thermal stability: C(15+) HCs begin thermal cracking at R(0) values of 0.9 and are completely thermally destroyed by R(0) = 1.35 percent; C2-C4 HC gases are thermally destroyed by R(0) = 2.0 percent; and methane is thermally destroyed by R(0) = 4.0 percent. The fact that observed data is so far removed from predicted behavior may be due to: a lack of recognition of some important possible controlling parameters of organic matter metamorphism and too much imporance given to other assumed controlling parameters; and assigning HC distribution patterns in petroleum basins to HC thermal cracking when such patterns may be due to other causes.
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