A5014501053- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Hydraulic Fracturing and Reservoir Analysis
- Atmospheric and Environmental Gas Dynamics
- Geological formations and processes
- Offshore Engineering and Technologies
- Geological Studies and Exploration
- Reservoir Engineering and Simulation Methods
University of Texas Institute for Geophysics
2022-2023
The University of Texas at Austin
2015-2021
The University of Texas Hydrate Pressure Coring Expedition (UT-GOM2-1) recovered cores at near in situ formation pressures from a gas hydrate reservoir composed sandy silt and clayey beds Green Canyon Block 955 the deep-water Gulf Mexico. expedition results are synthesized linked to other detailed analyses presented this volume. Millimeter- meter-scale interbedded on levee turbidite channel. saturation (the volume fraction pore space occupied by hydrate) silts ranges 79% 93%, there is little...
We interpret the sedimentologic evolution of a deep-water channel-levee deposit in Green Canyon Block 955 (deep-water Gulf Mexico) by analyzing hydrate-bearing pressure cores and nonpressure collected during The University Texas-Gulf Mexico 2-1 (UT-GOM2-1) Hydrate Pressure Coring Expedition that preserve remarkable sedimentary structures. levee is composed alternating beds sandy silt clayey range from millimeters to meters thickness. each couplet records single turbidity current flow which...
We explore the petrophysical behavior of two interbedded lithofacies (sandy silt and clayey silt) that constitute Green Canyon Block 955 hydrate reservoir in deep-water Gulf Mexico by performing experiments on reconstituted samples material. Sandy silts to situ porosity have a permeability 11.8 md (1.18 × 10−14 m2), which is similar intrinsic permeabilities measured intact cores from reservoirs grain size offshore Japan (Nankai Trough) India. Reconstituted much lower 3.84 10−4 (3.84 10−19...
Gas hydrate in the Green Canyon area (Block 955) northern Gulf of Mexico is hosted by relatively clay-free silty levee deposits bounding a Pleistocene submarine channel. During initial phase channel development, axis experienced sediment bypass while to sandy flanking levees formed. Development high prompted gravitational collapse along normal faults dipping toward axis. Extension at was accompanied compression The failure caused rotation and displacement deposits. Later, deposition occurred...
Rapid sedimentation reduces the temperature and raises pore pressure in sedimentary basins. During rapid (>0.5 mm yr−1), cold sediment is buried fast there insufficient heat flow to keep at its steady state conductive equilibrium temperature. In addition, deposition of low permeability mud results overpressure due inability fluid drain. It dramatically expands thickness zone where hydrates are stable (the gas hydrate stability or GHSZ). We explore this effect with one-dimensional models....
Rapid sedimentation reduces the temperature and raises pore pressure in sedimentary basins. During rapid (>0.5 mm yr-1), cold sediment is buried fast there insufficient heat flow to keep at its steady state conductive equilibrium temperature. In addition, deposition of low permeability mud results overpressure due inability fluid drain. It dramatically expands thickness zone where hydrates are stable (the gas hydrate stability or GHSZ). We explore this effect with one-dimensional models....
We present an evolutionary model to describe the pressure and temperature evolution of Terrebonne Basin located in approximately 2100 m water depth northern Gulf Mexico (Figure 1). Based on 2- 3-D seismic biostratigraphic data, deeper central part is composed ∼6500 sediments, which show very young age (Pleistocene, <2.6 Ma) suggesting a rapid average sedimentation rate ∼4.1 mm/year. Our coupled hydrologic geothermal shows that this burial dramatically reduces gradient from what would be...