STRUCTURAL CHARACTERIZATION OF THE PUMA DIAPIR, GULF OF MEXICO BASIN

<p>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.</p>

Name thesis:degree_name

Master of Science - Geology

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Geology

Year dc:date.available

2024

Author dc:creator

• Velasquez, Rodrigo

Contributors dc:contributor

• Dr. Julie Bloxson
• Dr. Wesley Brown
• Dr. Zachariah Fleming

• Gulf of Mexico
• Geology
• Geophysics and Seismology
• Tectonics and Structure

Repository record dc:identifier

https://scholarworks.sfasu.edu/etds/567

OAI identifier oai:identifier

oai:scholarworks.sfasu.edu:etds-1615