Date of Award
Summer 8-10-2024
Degree Type
Thesis
Degree Name
Master of Science - Geology
Department
Geology
First Advisor
Dr. Julie Bloxson
Second Advisor
Dr. Wesley Brown
Third Advisor
Dr. Zachariah Fleming
Fourth Advisor
Dr. Jenny Reshall
Abstract
The Gulf of Mexico (GOM) Basin has been a significant target for oil and gas since the 1990s and continues today as a leading exploration target. This super basin is home to an estimated 200 BBOE (Billon barrels of oil equivalent), with current production totaling 60 BBOE for both USA and Mexico. Even though the overall depositional evolution of the GOM has allowed for the key elements for petroleum accumulations to be met, a complex structural framework is present. This framework results from the asymmetric spreading of the North American Plate from the Yucatan block crating the GOM basin we see today, coupled with Jurassic Louann Salt deposits precipitated throughout the basin. The subsequent increasing sedimentary load created complex gravity-induced tectonic structures, resulting in various salt stocks and canopies forming in the Louann Salt. This research aims to characterize the structure surrounding the Puma Diapir, located in the southeastern region of the Green Canyon Protraction of the Gulf of Mexico. The seismic dataset is a multiclient 3D depth survey from WesternGeco that combines wide azimuth acquisition (WAZ) and full azimuth acquisition (FAZ) datasets to produce a final image. The base and top of the salt in our study area are carefully mapped using the Kingdom Suite software. These structure maps are used as a visual aid in accessing the structural framework of the salt dome. Within the Puma Diapir, there are two salt feeders into the canopy. Above the allochthonous salt sheet, we find secondary bucket-style minibasins, where the strata are sinking into the underlying salt feeders. The area consists of a variety of normal faults, and reactive salt structures. Above the salt dome, shallow extension faulting is the result of the rising body. Overall, the Puma Diapir shows classic, yet complex structural features associated with salt movement.
Repository Citation
Velasquez, Rodrigo, "STRUCTURAL CHARACTERIZATION OF THE PUMA DIAPIR, GULF OF MEXICO BASIN" (2024). Electronic Theses and Dissertations. 567.
https://scholarworks.sfasu.edu/etds/567
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Tell us how this article helped you.
