The Upper Cretaceous Austin Chalk is a tremendous hydrocarbon reservoir. The Austin Chalk is partly self-sourced,but is primarily sourced by the underlying Eagle Ford Formation. There have been numerous studies investigating the fracture network in the Austin Chalk to understand hydrocarbon migration and maximize recovery. However, limited research has been conducted to investigate the natural fracture system of the Eagle Ford formation, and to constrain migration pathway to the overlying Austin Chalk. Such research would reveal hydrocarbons pathways through the Eagle Ford and into the Austin Chalk.
This study investigates the fracture system of the Eagle Ford Formation that potentially served as migration pathways for hydrocarbons to the overlying Austin Chalk. The geochemistry of fracture fill is used to constrain fluid composition and source, and condition and timing of fluid migration. This project focuses on outcrops along U.S. Highway 90 north of Del Rio, as well as various quarries near Del Rio, San Antonio, and Waco in order to characterize the natural fracture system of the Eagle Ford Formation. Thin sections of fracture fill were collected for microstructural analysis to constrain paleostress, and vein crack and sealing mechanism over time. Geochemistry of the vein fill, Rock-Eval, and X-ray fluorescence are analyzed to constrain fluid-rock interaction and hydrocarbon migration.
|Commitee:||Deux, Timothy W., Schubert, Brian|
|School:||University of Louisiana at Lafayette|
|School Location:||United States -- Louisiana|
|Source:||MAI 58/05M(E), Masters Abstracts International|
|Keywords:||Austin Chalk, Eagle Ford, Fractures, Hydrocarbon migration, Structure, Veins|
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