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
By: C.E. Barker
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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
Suggested Citation
Barker, C., 1984, 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, v. 7, no. 1, p. 109-112, https://doi.org/10.1111/j.1747-5457.1984.tb00166.x.
| 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 |
| Publication Date | December 18, 2007 |
| 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 |