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Development of a 400 Level 3C Clamped Downhole Seismic Receiver Array for 3D Borehole Seismic Imaging of Gas Reservoirs, Quarterly Report: January 1 - March 31, 2004

Description: Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data n… more
Date: May 31, 2004
Creator: Paulsson, Bjorn N. P.
Partner: UNT Libraries Government Documents Department
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TREATMENT OF HYDROCARBON, ORGANIC RESIDUE AND PRODUCTION CHEMICAL DAMAGE MECHANISMS THROUGH THE APPLICATION OF CARBON DIOXIDE IN NATURAL GAS STORAGE WELLS

Description: Core specimens and several material samples were collected from two natural gas storage reservoirs. Laboratory studies were performed to characterize the samples that were believed to be representative of a reservoir damage mechanism previously identified as arising from the presence of hydrocarbons, organic residues or production chemicals. A series of laboratory experiments were performed to identify the sample materials, use these materials to damage the flow capacity of the core specimens a… more
Date: May 31, 2004
Creator: Pekot, Lawrence J. & Himes, Ron
Partner: UNT Libraries Government Documents Department
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DoE Advanced Ceramic Microturbine

Description: In July 2001, Ingersoll-Rand began work on this program. Its objective was to introduce ceramic hot section components into the IR family of microturbines to permit higher operating temperatures and hence improved efficiency. The IR microturbine product line combines a novel application of industrial turbocharger equipment, our commercially successful recuperator, and proven industrial gas turbine design practices. The objective of the joint development program is to combine the high production… more
Date: May 31, 2004
Creator: IR Energy Systems
Partner: UNT Libraries Government Documents Department
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New Heterogeneous Catalysts for the Selective Reduction of NOx under Lean Conditions. Final Report

Description: The original goal of this program was the identification and design of new noble-metal-based catalysts for the selective catalytic reduction of nitric oxide by hydrocarbons under excess oxygen (i.e., ''lean'') conditions (HC-SCR). Work conducted in the first funding cycle of this award (i.e., 1997-2000) was successful in allowing us to develop an understanding of the fundamental surface chemistry taking place during the adsorption and reaction of nitrogen oxides and propylene on the surface of … more
Date: May 31, 2004
Creator: Amiridis, M. D.
Partner: UNT Libraries Government Documents Department
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Geologic Controls of Hydrocarbon Occurrence in the Southern Appalachian Basin in Eastern Tennessee, Southwestern Virginia, Eastern Kentucky, and Southern West Virginia

Description: This report summarizes the second-year accomplishments of a three-year program to investigate the geologic controls of hydrocarbon occurrence in the southern Appalachian basin in eastern Tennessee, southwestern Virginia, eastern Kentucky, and southern West Virginia. The project: (1) employs the petroleum system approach to understand the geologic controls of hydrocarbons; (2) attempts to characterize the T-P parameters driving petroleum evolution; (3) attempts to obtain more quantitative defini… more
Date: May 31, 2004
Creator: Hatcher, Robert D.
Partner: UNT Libraries Government Documents Department
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Tropical Warm Pool International Cloud Experiment TWP-ICE Cloud and rain characteristics in the Australian Monsoon

Description: The impact of oceanic convection on its environment and the relationship between the characteristics of the convection and the resulting cirrus characteristics is still not understood. An intense airborne measurement campaign combined with an extensive network of ground-based observations is being planned for the region near Darwin, Northern Australia, during January-February, 2006, to address these questions. The Tropical Warm Pool International Cloud Experiment (TWP-ICE) will be the first fie… more
Date: May 31, 2004
Creator: May, P.T., Jakob, C., and Mather, J.H.
Partner: UNT Libraries Government Documents Department
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CROSS-ROLL FLOW FORMING OF ODS ALLOY HEAT EXCHANGER TUBES FOR HOOP CREEP ENHANCEMENT

Description: Mechanically alloyed oxide dispersion strengthened (ODS) Fe-Cr-Al alloy thin walled tubes and sheets, produced via powder processing and consolidation methodologies, are promising materials for eventual use at temperatures up to 1200 C in the power generation industry, far above the temperature capabilities of conventional alloys. Target end-uses range from gas turbine combustor liners to high aspect ratio (L/D) heat exchanger tubes. Grain boundary creep processes at service temperatures, parti… more
Date: May 31, 2004
Creator: Kad, Bimal K.
Partner: UNT Libraries Government Documents Department
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DEVELOPMENT OF IMPROVED ANAEROBIC GROWTH OF BACILLUS MOJAVENSIS STRAIN JF-2 FOR THE PURPOSE OF IMPROVED ANAEROBIC BIOSURFACTANT PRODUCTION FOR ENHANCED OIL RECOVERY

Description: Our work focuses on the use of microorganisms to recover petroleum hydrocarbons that remain entrapped after current recovery technologies reach their economic limit. Capillary forces between the hydrocarbon and aqueous phases are largely responsible for trapping the hydrocarbons in the pores of the rock and large reductions in the interfacial tension between the hydrocarbon and aqueous phases are needed for hydrocarbon mobilization (1-3, 10, 11). Microorganisms produce a variety of biosurfactan… more
Date: May 31, 2004
Creator: McInerney, M.J.; Folmsbee, M. & Nagle, D.
Partner: UNT Libraries Government Documents Department
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Development of Microorganisms With Improved Transport and Biosurfactant Activity for Enhanced Oil Recovery Annual Report

Description: Diverse microorganisms were screened for biosurfactant production and anaerobic growth at elevated salt concentrations to obtain candidates most suitable for microbial oil recovery. Seventy percent of the 205 strains tested, mostly strains of Bacillus mojavensis, Bacillus subtilis, Bacillus licheniformis, and Bacillus sonorensis, produced biosurfactants aerobically and 41% of the strains had biosurfactant activity greater than Bacillus mojavensis JF-2, the current candidate for oil recovery. Bi… more
Date: May 31, 2004
Creator: McInerney, M.J.; Youssef, N.; Fincher, T.; Maudgalya, S. K.; Folmsbee, M. J.; Knapp, R. et al.
Partner: UNT Libraries Government Documents Department
open access

Development of Biosurfactant-Mediated Oil Recovery in Model Porous Systems and Computer Simulations of Biosurfactant-Mediated Oil Recovery

Description: Current technology recovers only one-third to one-half of the oil that is originally present in an oil reservoir. Entrapment of petroleum hydrocarbons by capillary forces is a major factor that limits oil recovery (1, 3, 4). Hydrocarbon displacement can occur if interfacial tension (IFT) between the hydrocarbon and aqueous phases is reduced by several orders of magnitude. Microbially-produced biosurfactants may be an economical method to recover residual hydrocarbons since they are effective at… more
Date: May 31, 2004
Creator: McInerney, M.J.; Maudgalya, S.K.; Knapp, R. & Folmsbee, M.
Partner: UNT Libraries Government Documents Department

[TXSSAR Color Guard at outdoor event, 3]

Description: Photograph of the TXSSAR Color Guard at an outdoor event. They are standing side by side in front of a shade structure, looking at the camera and smiling. People can be seen conversing in the background, on the left and right sides of the photograph.
Date: May 31, 2004
Creator: Texas Society Sons of the American Revolution
Partner: UNT Libraries Special Collections

[TXSSAR Color Guard sits at outdoor event]

Description: Photograph of the TXSSAR Color Guard sitting under a shade structure at an outdoor event. They are sitting side by side, looking out to the right of the camera. Flags have been attached to the backs of the chairs. People can be seen standing in the background, conversing.
Date: May 31, 2004
Creator: Texas Society Sons of the American Revolution
Partner: UNT Libraries Special Collections
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