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A problem with estimating the pseudo- activation energy of kerogen thermal maturation from Connan's time-temperature relation in oil genesis.

Journal of Petroleum Geology

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DOI: 10.1111/j.1747-5457.1984.tb00166.x

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Abstract

Connan's time-temperature relation in oil genesis as derived from first-order reaction kinetics is algebraically correct, but its application to natural petroleum generation is invalidated by the assumption that the ratio of initial kerogen concentration to degraded kerogen concentration is constant from deposition to the initiation of intense oil generation. The ratio can only remain constant if no reaction is occurring and, therefore, Connan's data on 'reaction time' in petroleum generation (assumed to be the age of the sediment) only measures the time elapsed since the system formed. Thus, the widely cited pseudo-activation energy of 11-14 kcal/mole computed from Connan's equation for the start of oil generation from kerogen is meaningless.-Author

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
A problem with estimating the pseudo- activation energy of kerogen thermal maturation from Connan's time-temperature relation in oil genesis.
Series title:
Journal of Petroleum Geology
DOI:
10.1111/j.1747-5457.1984.tb00166.x
Volume
7
Issue:
1
Year Published:
1984
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Petroleum Geology
First page:
109
Last page:
112
Number of Pages:
4