Events
Mon | Tue | Wed | Thu | Fri | Sat | Sun |
---|---|---|---|---|---|---|
1 | 2 | |||||
3 | 4 | 5 | 6 | 7 | 8 | 9 |
10 | 11 | 12 | 13 | 14 | 15 | 16 |
17 | 18 | 19 | 20 | 21 | 22 | 23 |
24 | 25 | 26 | 27 | 28 | 29 | 30 |
31 |
Legend | |||||||||||
JSG | BEG | UTIG | EPS |
Soft Rock Seminar: Julio Leva
Start:December 3, 2012 at 12:00 pm
End:
December 3, 2012 at 1:00 pm
Location:
JGB 3.222
Contact:
Rattanaporn Fongngern (Jah), rattanapornf@utexas.edu
BEG Friday Seminar Series: Dr. Osareni Ogiesoba, BEG
Start:December 7, 2012 at 9:00 am
End:
December 7, 2012 at 10:00 am
Location:
J.J. Pickle Research Campus, Bldg. 130, room #1.202
Video Streaming: Not available for this seminar
SEISMIC INVERSION FOR SHALE GAS/OIL IN THE AUSTIN CHALK AND EAGLE FORD SHALE IN A SUBMARINE VOLCANIC TERRAIN, MAVERICK BASIN, SOUTH TEXAS
Osareni (Chris) Ogiesoba
Bureau of Economic Geology (STARR)
Hydrocarbon exploration in the Austin Chalk began in 1916 with the discovery of hydrocarbon traps located in and around volcanic centers (serpentine plugs) encased by Austin Chalk. Owing to the occurrence of hydrocarbons around these serpentine plugs, exploration efforts were focused on identifying surface as well as subsurface locations of volcanic centers within the Austin Chalk. However, with the realization of the existence of fault-related, fractured reservoirs within the Austin Chalk in the 1980’s, fault zones became the main target of exploration—and the drilling spree started. To date, more than 2,000 horizontal wells have been drilled within the Austin Chalk.
Although some of these wells were successful, many others failed either because they did not penetrate hydrocarbon sweet spots, or hydrocarbon-source-rock distribution within and outside the Austin Chalk was unknown. In this project, seismic inversion studies was conducted by combining seismic data with wireline logs to determine sweet spots and predict resistivity distribution (using the deep-induction log) within the Austin Chalk and Eagle Ford Shale in South Texas.
Results show that >90% of productive zones are in the lower part of the Austin Chalk and are associated with Eagle Ford vertical-subvertical en echelon faults, suggesting hydrocarbon migration from the Eagle Ford Shale. Furthermore, the lower Austin Chalk and upper Eagle Ford Shale together appear to constitute a continuous (unconventional) hydrocarbon play.
In addition, local accumulations within the Austin Chalk may be related to Austin TOC-rich zones or migration from the Eagle Ford through fractures. The quality-factor attribute (Q) can serve as a tool for detecting high-water saturated zones. Although Q was not selected as one of the primary attributes for predicting resistivity, it nevertheless can serve as a good reconnaissance tool for predicting resistivity and brittle zones. Wells that have high water production do so because the water-bearing middle Austin Chalk that sits on the downthrown side of Eagle Ford regional faults constitutes a large section of the horizontal well, as evidenced by the Q attribute. Finally, based on the seismic stratigraphic positions of identified submarine volcanic mounds within the Austin Chalk, volcanic activity probably continued up middle Campanian time.
JSG Fall Graduation
Start:December 8, 2012 at 1:00 pm
End:
December 8, 2012 at 3:00 pm
Location:
McCullough Theatre (in the Performing Arts Complex)
Contact:
Erin Negron, erin.negron@jsg.utexas.edu, 512-471-5870
View Event
Event: The Jackson School of Geosciences 2012 Fall Commencement Ceremony and Reception
Speaker: Brewster McCracken
Reception: Immediately following ceremony, at Holland Family Student Center (JGB), refreshments will be served
UTIG Seminar Series: Cornelia Rasmussen, UTIGApril, 26 2024Time: 10:30 AM - 11:30 AMLocation: PRC 196/ROC 1.603 Speaker: Cornelia Rasmussen, Research Associate, University of Texas Institute for Geophysics Host: Krista Soderlund Title: The Emerging Field Of Position-Specific Isotope Analysis: Applications in chemical forensics, exobiology, geo- and environmental sciences Abstract: Complex organics can be found all over our solar system and within each living thing on our planet, be it as part of its physiology or as a contaminant. However, different processes can lead to the formation of chemical identical molecules. This makes answering a number of scientific questions challenging. One example is distinguishing between biotic and abiotic molecules, hence hindering life detection on early Earth but especially on other planetary bodies, such as on Mars, Titan, Enceladus and on meteorites where organics have been detected. Moreover, tracing molecules as they move through the environment can be demanding, yet is essential in studying the flow of organic molecules as well as correlating pollutants with their source. Novel tools to address these challenges are currently being developed. Especially, the emerging field of position-specific isotope analysis is beginning to grant access to the unique intramolecular carbon (13C/12C) isotope fingerprint preserved in complex molecules. This fingerprint can be applied in various scientific disciplines, ranging from forensics to exobiology, geo- and environmental sciences, including geo health. Nuclear magnetic resonance spectroscopy (NMR) has the potential to become a key player in this research area, as it allows the analysis of organics within complex mixtures, all without the need to fragment the molecule into single carbon units or the combustion of the molecule of interest. We have been developing several NMR tools that allow us to investigate the intramolecular carbon isotope distribution within various molecule classes and to test the central hypothesis that the position-specific carbon isotope distribution within complex organics depends on a molecule’s source and formation history. |
Planetary Habitability Seminar SeriesApril, 29 2024Time: 1:00 PM - 2:00 PMLocation: PMA 15.216B UT Center for Planetary Systems Habitability Seminar Series. See website for speaker schedule and more details: View Events Join remotely: https://utexas.zoom.us/j/94052130734 In person: Classroom 15.216B, Physics, Math and Astronomy Bldg. UT Austin, Department of Astronomy 2515 Speedway, Stop C1400 Austin, Texas 78712-1205 |
UTIG Discussion Hour: Kristian Chan - PhD Talk (UTIG)April, 30 2024Time: 2:00 PM - 3:00 PMLocation: ROC 2.201 |