Dissertation/Thesis Abstract

Activation Energies of Kerogen in the Eagle Ford Shale Estimated from Rock Eval Pyrolysis Data: Comparison of Methods Using Single and Multiple Heating Rates
by Perreault, Luke J., M.S., University of Louisiana at Lafayette, 2016, 66; 10615395
Abstract (Summary)

Source rock kinetics have become increasingly important when defining kerogen maturity and building basin models. Recent studies have suggested that the activation energies (Ea) needed for these applications can be obtained using one-run open-system pyrolysis with a single heating rate and a fixed frequency factor (A). This method is thought to be faster and cheaper than using multiple heating rates with a varying frequency factor. In this study both methods were used to find the Ea of seven organic-rich samples from the Eagle Ford Shale. Activation energies for the multiple heating rate method were calculated in accordance to the Kissinger method, while E a values for the single heating rate method were found using the One Run Fixed A (ORFA) kinetic software. The multiple heating rate method implemented heating rates of 5, 10, 20, and 50 °C/min, while the single heating rate method used a standard heating rate of 25 °C/min. Due to the use of a fixed A, the single heating rate method produced larger, more consistent values than the multiple heating rate method. However, these Ea values were not always consistent with previous known values. When the fixed A value used in the single heating rate method was replaced with the A values obtained from the multiple heating rate method, Ea became closer to those found using multiple heating rate method.

Indexing (document details)
Advisor: Borrok, David
Commitee: Gottardi, Raphael, Schubert, Brian, Willis, James
School: University of Louisiana at Lafayette
Department: Geology
School Location: United States -- Louisiana
Source: MAI 57/05M(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Geology, Geochemistry
Keywords: Activation energy, Eagle Ford, Kissinger method
Publication Number: 10615395
ISBN: 9780355853834
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