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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 77 (1993)

Issue: 9. (September)

First Page: 1502

Last Page: 1508

Title: A Simpler Kinetic Model of Vitrinite Reflectance

Author(s): Noriyuki Suzuki (2), Hideki Matsubayashi (3), Douglas W. Waples (3)


We have developed SIMPLE-Ro as a simpler but conceptually compatible alternative to existing kinetic models for vitrinite reflectance, such as VITRIMAT and EASY%Ro. Where calculations are done using the isothermal-segment approach, SIMPLE-Ro is much faster. Where the constant-heating-rate-segment approach is used, SIMPLE-Ro and EASY%Ro are of similar speed.

SIMPLE-Ro is based on a single activation energy in each time step, rather than on a range. This activation energy changes as a function of Ro, thus simulating the maturity-dependent change in activation-energy distribution observed in nature. SIMPLE-Ro can be calibrated to any desired distribution of activation energies, or can be calibrated against measured Ro data independent of any other kinetic model.

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