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.
|Commitee:||Gottardi, Raphael, Schubert, Brian, Willis, James|
|School:||University of Louisiana at Lafayette|
|School Location:||United States -- Louisiana|
|Source:||MAI 57/05M(E), Masters Abstracts International|
|Keywords:||Activation energy, Eagle Ford, Kissinger method|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be