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Showing 1 to 20 of 28 for “"Eagle Ford"”.
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Controlling Factors on Condensate Production from the Eagle Ford Shale
This thesis examines the impact on recovery from shale condensate reservoirs of key properties such as porosity and permeability as well as other controlling factors that include the horizontal wells length, liquid drop out and liquid loading around the wellbore. It also addresses the possibility …
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GEOCHEMICAL ANALYSIS OF THE EAGLE FORD SHALE IN WEBB AND DIMMIT COUNTIES, TX
<p>The Late Cretaceous Eagle Ford Shale of South Texas is a mixed carbonate–siliciclastic succession that serves as both a prolific hydrocarbon source and reservoir. This study integrates chemostratigraphy, mineralogical analysis, and elemental ratio proxies to reconstruct depositional environments …
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Anisotropic analysis of unconventional reservoirs using rock physics model: Eagle Ford shale case study
Eagle Ford shale has been of importance in the oil and gas industry with the new advent of unconventional technology in recent years. Previous studies have shown that Eagle Ford shale is a world-class source rock. Rock physics models help characterize the elastic properties of conventional and …
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Controls on the accumulation of organic matter in the Eagle Ford Group, Central Texas, USA.
The Upper Cretaceous Eagle Ford Formation is an organic rich marine mudrock which outcrops across central Texas. This study documents the chemostratigraphic character of the Pepper and Eagle Ford Formations in central Texas using major and trace elements, organic matter abundance, and the isotopic …
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Aerosol formation from oil and gas development in the Eagle Ford Shale in two different seasons
… the influence of UOGD on the air quality in the Eagle Ford Shale (EFS), a region in southeast Texas, through ambient measurements during two different seasons. Instrumentation was deployed to Karnes City, TX, located in the EFS, in the spring and fall of 2023. Instrumentation included ACSM, SEMS, …
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Microseismic guided wave eigenfunction theory with application to event depth classification in the Eagle Ford shale
… and dispersion modes in a model representing the Eagle Ford Shale is then studied. High frequency guided wave energy is found to be largely confined to the Eagle Ford, and the modal energy distribution shows a nodal point in the first higher mode for events originating in the middle of the Eagle …
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Bulk Rock Major and Trace element Chemostratigraphy of the Cretaceous Lower Eagle Ford Formation in South Texas
The Eagle Ford Formation is an unconventional hydrocarbon source rock play in South Texas which produces oil, condensate, and gas from its organic-rich shales deposited in the Late Cretaceous. Twenty-three whole rock samples of the Lower Eagle Ford from a 120.85 ft core from La Salle County, Texas …
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Petrographic and petrophysical characterization of the Eagle Ford Shale in La Salle and Gonzales counties, Gulf Coast Region, Texas
The Eagle Ford Shale is an organic-rich marine carbonate-dominated mudrock located in the Gulf Coast Region, Texas. This mudrock was deposited during the Late Cretaceous and is composed of two main members: the lower and the upper Eagle Ford, which are associated to marine transgression and …
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An Exploratory Study on the Possible Effect of Hydraulic Fracturing Activities on Air Quality in the Eagle Ford Shale Region of Texas.
<h3>Eagle Ford Shale (EFS) play is one out of five major oil and gas formations in Texas, found in the South-Eastern region with approximately 30 counties. In addition to natural gas, it produces crude oil and petroleum liquids which in recent times has resulted in a surge in drilling due to a new …
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Characterization of anisotropy in organic-rich shales: shear and tensile failure, wave velocity, matrix and fracture permeability
… (anisotropy) in the elastic properties of Eagle Ford shale. Throughout the literature, it is usually assumed that the three oriented samples have identical properties when they are drilled closed to each other. However, this assumption is not valid for some Eagle Ford shale facies due to …
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Igneous life cycles: geochemistry of magma from mantle to surface and back again
… record of volcanic ash layers in the Cretaceous Eagle Ford Group to investigate temporal changes in ash composition on <100 kyr timescales. We apply an empirical Ti/Zr-SiO2 relationship to Ti/Zr measurements of 52 Eagle Ford bentonites to reconstruct of ash protolith SiO2 of altered bentonites. …
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Interpretation and Fracture Characterization of Early-Cretaceous Buda Limestone Formation Using Post-Stack 3D Seismic Data in Zavala County, Texas
… in south Texas which unconformably underlies the Eagle Ford Shale. Matrix porosity of the Buda is less than 6%, therefore natural fractures improve the potential for commercial hydrocarbon production from this tight limestone formation. This presents a challenge for producers to identify these …
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Probabilistic Oil and Gas Production Forecasting using Machine Learning
… modelled a complex shale gas reservoir system (Eagle Ford), generating a production forecast with 5% mean absolute percent error. This result is 10%–35% more accurate than traditional decline curve analysis. These forecasts also quantified the epistemic and aleatory uncertainties, providing …
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Depositional History and Stratigraphic Framework of Upper Cretaceous (Campanian to Maastrichtian) Strata in the Minerva-Rockdale Oil Field of Milam County and Adjacent Counties, Texas.
… a regional stratigraphic framework for the Eagle Ford though Navarro Group strata within Milam and surrounding counties, (2) document the sequence-stratigraphic framework for Campanian to Mastrichtian aged strata, (3) recreate and test the depositional shelf plume model developed by …
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Investigating the performance of high viscosity friction reducers used for proppant transport during hydraulic fracturing
… in North America including Permian, Bakken, and Eagle Ford. However, selecting the most suitable fracture fluid system plays an essential role in proppant transport and minimizing or eliminating formation damage.</p> <p>This study investigates the influence of the use of produced water on the …
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Spatially resolved life cycle models for the environmental footprint of electricity generation
… new natural gas developments in the Barnett and Eagle Ford shale regions in Texas, the consumptive water impact of new natural gas development in Texas, the impact of seasonal versus ozone forecast-based pricing for power plant NOx emissions in the state of Texas, and the potential cost and air …
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Investigation of Asphaltene Instability Under Gas Injection in Unconventional Reservoirs and its Impact on Oil Recovery Performance
… scenarios. For the huff-n-puff mode, various Eagle Ford shale cores were used to understand the potential of this mode on asphaltene instability in real shale structures and its influence on oil recovery performance. The plugging impact of asphaltene particles in continuous mode was evaluated …
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Capillary pressure curve and liquid permeability estimation in tight oil reservoirs using pressure decline versus time data
… to estimate the capillary drainage curve for an Eagle Ford shale and it was also used to determine the shale's liquid permeability using the early time data of the pressure decline curve. The data obtained during the experiment could be used to estimate fluid saturations as a function of time …
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Electrofacies, elemental composition, and source rock characteristics along seismic reflectors of the Vaca Muerta Formation in the Loma La Lata area, Neuquen Basin, Argentina
… to plays in the United States such as the Eagle Ford. This study integrated well log, cuttings, and seismic data in the Loma La Lata area of the basin. Electrofacies were generated using well log data, with five electrofacies defined. Cuttings were analyzed for elemental composition, …
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PRODUCTION FORECASTING FOR SHALE OIL: WORKFLOW
… to three of four volatile oil wells in the Eagle Ford shale, with similar results. The analytical model that best matched the wells is called the Stimulated Reservoir Volume (SRV) Bounded Model by the software marketer Kappa. We tested this and other models using a Beta test version of new …
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