Evaluation of petroleum generation and expulsion from a source rock by open and restricted system pyrolysis experiments. Part I. extrapolation of experimentally-derived kinetic parameters to natural systems

Citation
S. Inan et Hj. Schenk, Evaluation of petroleum generation and expulsion from a source rock by open and restricted system pyrolysis experiments. Part I. extrapolation of experimentally-derived kinetic parameters to natural systems, J AN AP PYR, 58, 2001, pp. 213-228
Citations number
33
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
ISSN journal
0165-2370 → ACNP
Volume
58
Year of publication
2001
Pages
213 - 228
Database
ISI
SICI code
0165-2370(200104)58:<213:EOPGAE>2.0.ZU;2-N
Abstract
The kinetic data sets obtained on two different grain-size splits, finely g round (< 0.106 mm) and chip (1-4 mm), of the very same sample show remarkab le differences. The geochemical meaning of these differences were investiga ted by extrapolation of these laboratory-derived kinetic parameters to natu ral setting by help of a 2-D basin modelling software. The results suggest that modelling's predictions are significantly different, from one kinetic data set to the other, in terms of temperatures and timing of petroleum gen eration in nature which are very important from the standpoint of petroleum exploration. Application of laboratory-derived kinetic parameters for simu lation of petroleum generation from sedimentary organic matter (kerogen) in natural system requires great caution. Conventional use of finely ground ( powder) samples in pyrolysis to derive kinetics of petroleum generation is far from representing source rock environments in nature. (C) 2001 Elsevier Science B.V. All rights reserved.