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Preliminary study of uranium in Pennsylvanian and lower Permian strata in the Powder River Basin, Wyoming and Montana, and the Northern Great Plains

Description: Persistent and widespread radiometric anomalies occur in Pennsylvanian and Lower Permian strata in the subsurface of the northern Great Plains and the Powder River Basin. The primary host lithology of these anomalies is shale interbedded with sandstone, dolomite, and dolomitic sandstone. Samples from the project area indicate that uranium is responsible for some anomalies. In some samples there seems to be a correlation between high uranium content and high organic-carbon content, which possibl… more
Date: November 1, 1977
Creator: Dunagan, J.F. Jr. & Kadish, K.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Acoustic Flow Instruments for Solid/Gas Pipe Flows

Description: Two nonintrusive acoustic flow sensing techniques are reported. One technique, passive in nature, simply measures the bandpassed acoustic noise level produced by particle/particle and particle/wall collisions. The noise levels, given in true RMS voltages or in autocorrelations, show a linear relationship to particle velocity but increase with solid concentration. Therefore, the passive technique requires calibration and a separate measure of solid concentration before it can be used to monitor … more
Date: May 1, 1986
Creator: Sheen, S. H. & Raptis, A. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Microbial enhancement of oil production from carbonate reservoirs

Description: The goal of this work is to evaluate the potential for Microbial Enhanced Oil Recovery (MEOR) in carbonate reservoirs. Specific objectives include: review of the literature pertinent to MEOR in carbonate reservoirs, a study of the microbial ecology of carbonate reservoirs, isolation of microorganisms and their end-products of metabolism on carbonate pore structure, the recovery of residual oil from carbonates in model core systems, and development of models to examine and predict MEOR processes… more
Date: January 1, 1991
Creator: Tanner, R.S.; Knapp, R.M.; McInerney, M.J. & Udegbunam, E.O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reducing the environmental impact on solid wastes from a fluidized-bed combustor

Description: The use of three options for the reduction of the environmental impact of the solid sorbents used to control SO/sub 2/-emission in fluidized-bed coal combustion systems has been experimentally examined. The three options are: (1) the use of chemical reactivity enhancement agents, such as NaCl, (2) the regeneration and reuse of the limestone and (3) the use of synthetic sorbents. The quantity of waste decreases in the order (1) to (3) while the cost increases in the order (1) to (3). Both the us… more
Date: January 1, 1977
Creator: Johnson, I.; Vogel, G. J.; Montagna, J.; Shearer, J.; Snyder, R.; Swift, W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of luminescent bacteria as tracers for geological reservoir characterization

Description: This research project resulted from recognizing the problem of being unable to accurately distinguish communication between wells in producing oil zones which may or may not be continuous. Such a determination is necessary when considering Enhanced Oil Recovery (EOR) whether it is water flooding, carbon dioxide, or other methods which increase the sweep efficiency. Various kinds of chemical tracers are available, but they are expensive and many might be considered hazardous for underground aqui… more
Date: January 1, 1991
Creator: King, J.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Depositional sequence analysis and sedimentologic modeling for improved prediction of Pennsylvanian reservoirs

Description: The objectives of this research are to: (1) assist producers in locating and producing petroleum not currently being produced because of technological problems or the inability to identify details of reservoir compartmentalization (2) to decrease risk in field development, (3) accelerate the retrieval and analysis of baseline geoscience information for initial reservoir description. The interdisciplinary data sought in this research will be used to resolve specific problems in correlation of st… more
Date: January 1, 1992
Creator: Watney, W.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Workshop on sulfur chemistry in flue gas desulfurization

Description: The Flue Gas Desulfurization Workshop was held at Morgantown, West Virginia, June 7-8, 1979. The presentations dealt with the chemistry of sulfur and calcium compounds in scrubbers. DOE and EPRI programs in this area are described. Ten papers have been entered individually into EDB and ERA. (LTN)
Date: May 1, 1980
Creator: Wallace, W.E. Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development program on pressurized fluidized-bed combustion. Annual report, July 1, 1974--June 30, 1975

Description: The feasibility of using fluidized-bed combustors in power and steam plants is being evaluated. The concept involves burning fuels such as coal in a fluidized bed of either a naturally occurring, calcium-containing limestone or dolomite or in a synthetically prepared calcium-containing stone. The calcium oxide in the stone reacts with the sulfur released during combustion to form calcium sulfate, which remains in the bed, thus decreasing the level of SO/sub 2/ in the flue gas. Levels of NO/sub … more
Date: July 1, 1975
Creator: Vogel, G.J.; Cunningham, P. & Fischer, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Uranium potential of southwestern New Mexico (southern Hidalgo County), including observations on crystallization history of lavas and ash tuffs and the release of uranium from them. Final report

Description: Geological environments present in southwestern New Mexico include thick sequences of sedimentary rock including limestone, conglomerates, sandstone, and shale: igneous intrusions with associated metal deposits; caldera centers, margins, and outflow facies; and basins with marginal faults and thick late Cenozoic sedimentary fillings. Predominant rock types are Paleozoic carbonates, Mesozoic terrigeneous rocks and carbonates, and Cenozoic volcanic rocks and basin-filling terrigeneous rocks. Cons… more
Date: August 1, 1980
Creator: Walton, A.W.; Salter, T.L. & Zetterlund, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Regenerative Process for Desulfurization of High Temperature Combustion and Fuel Gases. Quarterly Progress Report No. 6, July 1--September 30, 1977

Description: The Brookhaven Regeneration Process, which comprises reacting the sulfated limestone with fly ash from a FBC in a solid-solid contacting kiln-type reactor, has been shown to be more promising than other processes currently under development. Much improvement can be made by optimizing the operating conditions which are primarily: gas flow rate, degree of agitation (rpm), additives (both solids and gases, e.g. steam), types of carbon, etc. TGA kinetic studies also showed promising results. Cyclic… more
Date: January 1, 1977
Creator: Yang, R. T.; Albanese, A. S.; Chen, J. M.; Farber, G.; Kainz, F. B.; Pruzansky, J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Demonstration of high-resolution inverse VSP for reservoir characterization applications

Description: The objective of this project is the determination of inverse vertical seismic profiling (VSP) measurements using new experimental field instrumentation capable of providing at least an order of magnitude improvement in the resolution of structural details in comparison with conventional seismic images. This two-year project will entail instrumentation tests under controlled field conditions during the first year followed by full-scale field demonstration tests in a representative oil-bearing r… more
Date: January 1, 1991
Creator: Parra, J.O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Permitting and solid waste management issues for the Bailly Station wet limestone Advanced Flue Gas Desulfurization (AFGD) system

Description: Pure Air (a general partnership between Air Products and Chemicals, Inc., and Mitsubishi Heavy Industries America, Inc.). is constructing a wet limestone co-current advanced flue gas desulfurization (AFGD) system that has technological and commercial advantages over conventional FGD systems in the United States. The AFGD system is being installed at the Northern Indiana Public Service Company's Bailly Generating Station near Gary, Indiana. The AFGD system is scheduled to be operational by the S… more
Date: January 1, 1991
Creator: Bolinsky, F.T. (Pure Air, Allentown, PA (United States)); Ross, J. (Northern Indiana Public Service Co., Hammond, IN (United States)); Dennis, D.S. (United Engineers and Constructors, Inc., Denver, CO (United States). Stearns-Roger Div.) & Huston, J.S. (Environmental Alternatives, Inc., Warren NJ (USA))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Healy clean coal project

Description: The objective of the Healy Clean Coal Project is to demonstrate the integration of an advanced combustor and a heat recovery system with both high and low temperature emission control processes. Resulting emission levels of SO{sub 2}, NO{sub x}, and particulates are expected to be significantly better than the federal New Source Performance Standards. (VC)
Date: March 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coal combustion: Effect of process conditions on char reactivity

Description: The project will quantify the effect of the following pyrolysis conditions on the macropore structure and on the subsequent reactivity of chars: (a) pyrolysis heating rate; (b) final heat treatment temperature (HTT); (c) duration of heat treatment at HTT (or soak time); (d) pyrolysis atmosphere (N{sub 2} or O{sub 2}/N{sub 2} mixtures); (e) coal particle size (100--1,000 {mu}m in diameter); (f) sulfur-capturing additives (limestone); and (g) coal rank. Pyrolysis experiments will be carried out f… more
Date: January 1, 1992
Creator: Zygourakis, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Full-scale laboratory drilling tests on sandstone and dolomite. Final report

Description: Full-scale laboratory drilling experiments were performed under simulated downhole conditions to determine what effect changing various drilling parameters has on penetration rate. The two rock types, typical of deep oil and gas reservoirs, used for the tests were Colton Sandstone and Bonne Terre Dolomite. Drilling was performed with standard 7/sup 7///sub 8/ inch rotary insert bits and water base mud. The results showed the penetration rate to be strongly dependent on bit weight, rotary speed,… more
Date: December 1, 1977
Creator: Black, A.D.; Green, S.J. & Rogers, L.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Depositional sequence analysis and sedimentologic modeling for improved prediction of Pennsylvanian reservoirs

Description: The objectives of this research are to: (1) assist producers in locating and producing petroleum not currently produced because of technological problems or the inability to identify details of reservoir compartmentalization, (2) to decrease risk in field development, and (3) accelerate the retrieval and analysis of baseline geoscience information for initial reservoir description. The interdisciplinary data sought in this research will be used to resolve specific problems in correlation of str… more
Date: January 1, 1991
Creator: Watney, W.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Coal combustion: Effect of process conditions on char reactivity

Description: The project will quantify the effect of the following pyrolysis conditions on the macropore structure and on the subsequent reactivity of chars: (a) pyrolysis heating rate; (b) final heat treatment temperature (HTT); (c) duration of heat treatment at HTT (or soak time); (d) pyrolysis atmosphere (N{sub 2} or O{sub 2}/N{sub 2} mixtures); (e) coal particle size (100 {endash} 1000 {mu}m in diameter); (f) sulfur-capturing additives (limestone); and (g) coal rank. Pyrolysis experiments will be carrie… more
Date: January 1, 1991
Creator: Zygourakis, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Microstructural interactions of geologic media with waste radionuclides

Description: A preliminary investigation of the microstructure of four geologic media was taken to examine the interaction of Cs, Sr, Gd and U with those media. Since K/sub D/ measurements often vary by more than an order of magnitude on rocks of the same strata separated by several feet, it was probable that minor rock components play an important role in radionuclide sorption. A qualitative analysis of the rock surfaces after equilibration with solutions of Cs/sup +/, Sr/sup + +/, Gd/sup + + +/ and UO/sub… more
Date: March 1, 1978
Creator: Hinkebein, T. E. & Hlava, P. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Modeling of Integrated Environmental Control Systems for Coal-Fired Power Plants Quarterly Report: November-December 1987

Description: This is the first quarterly report of DOE/PETC Contract No. DE-AC22-87PC79864, entitled, Modeling of Integrated Environmental Control Systems for Coal-Fired Power Plants.'' Refining, creating, and documenting of computer models concerning coal/flue gas cleaning and desulfurization are discussed. (VC)
Date: January 1, 1988
Creator: Rubin, E. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology of the Colado Geothermal Area, Pershing County, Nevada

Description: The Colado geothermal area in south-central Pershing County, Nevada is defined by hot water wells in alluvium just west of the West Humboldt Range. Geothermal gradient holes have encountered temperatures up to 113.5/sup 0/C at a depth of 76 m (250 ft) with a gradient reversal in the alluvium below this depth. The West Humboldt Range consists mainly of Triassic to Jurassic slaty shale to quartzite of the Auld Lang Syne Group. Carbonate rocks of the Jurassic Lovelock Formation have been thrust ov… more
Date: July 1, 1980
Creator: Sibbett, B.S. & Bullett, M.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Regenerative Process for Desulfurization of High Temperature Combustion and Fuel Gases. Progress Report No. 14, October 1-December 31, 1979

Description: The characteristics of Portland Type III cement (PC III) as a potential sorbent for use in a regenerative process for desulfurization of coal in fluidized-bed combustion were examined. The sulfation rates for PC III + 5% amorphous SiO/sub 2/ at temperatures between 860 and 1100/sup 0/C and at 1 atm were studied thermogravimetrically, using a simulated combustion gas mixture containing 0.25% SO/sub 2/. The sulfation rates were found to be independent of temperature between 950 and 1050/sup 0/C. … more
Date: March 1, 1980
Creator: Albanese, A. S. & Sethi, D. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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NUCLA Circulating Atmospheric Fluidized Bed Demonstration Project

Description: This Annual Report on Colorado-Ute Electric Association's NUCLA Circulating Fluidized Bed (CFB) Demonstration Program covers the period from February 1987 through December 1988. The outline for presentation in this report includes a summary of unit operations along with individual sections covering progress in study plan areas that commenced during this reporting period. These include cold-mode shakedown and calibration, plant commercial performance statistics, unit start-up (cold), coal and li… more
Date: January 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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LIMB Demonstration Project Extension

Description: The basic goal of the Limestone Injection Mitigation Burner (LIMB) demonstration is to extend LIMB technology development to a full- scale application on a representative wall-fired utility boiler. The successful retrofit of LIMB to an existing boiler is expected to demonstrate that (a) reductions of 50 percent or greater in SO{sub x} and NO{sub x} emissions can be achieved at a fraction of the cost of add-on FGD systems, (b) boiler reliability, operability, and steam production can be maintain… more
Date: November 15, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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(Relative mobilities and transport mechanisms of trace elements during contact metamorphism of carbonate rocks). Progress report

Description: The main objective of this study is to investigate the relative mobilities and transport mechanisms of major, minor, and trace elements during the contact metamorphism of carbonate rocks. The large contrasts in chemical potentials of SiO/sub 2/, Al/sub 2/O/sub 3/, and CaO across a granitic pluton-limestone contact may induce metasomatism. In addition, rare earth and transition metal elements may act as tracers, and their redistribution during metamorphism may record convective cooling processes… more
Date: unknown
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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