Advanced Oil Recovery Technologies for Improved Recovery From Slope Basin Clastic reservoirs, Nash Draw Brushy Canyon Pool, Eddy County, New Mexico (open access)

Advanced Oil Recovery Technologies for Improved Recovery From Slope Basin Clastic reservoirs, Nash Draw Brushy Canyon Pool, Eddy County, New Mexico

The overall goal of this project is to demonstrate that an advanced development drilling and pressure maintenance program based on advanced reservoir management methods can significantly improve oil recovery. The plan included developing a control area using standard reservoir management techniques and comparing its performance to an area developed using advanced methods. A key goal is to transfer advanced methodologies to oil and gas producers in the Permian Basin and elsewhere, and throughout the US oil and gas industry.
Date: April 30, 1998
Creator: Murphy, Mark B.
Object Type: Report
System: The UNT Digital Library
Advanced oil recovery technologies for improved recovery from slope basin clastic reservoirs, Nash Draw Brushy Canyon Pool, Eddy County, NM. Quarterly technical progress report, January 1--March 31, 1998 (open access)

Advanced oil recovery technologies for improved recovery from slope basin clastic reservoirs, Nash Draw Brushy Canyon Pool, Eddy County, NM. Quarterly technical progress report, January 1--March 31, 1998

The overall objective of this project is to demonstrate that a development program--based on advanced reservoir management methods--can significantly improve oil recovery at the Nash Draw Pool (NDP). The plan includes developing a control area using standard reservoir management techniques and comparing its performance to an area developed using advanced reservoir management methods. Specific goals are (1) to demonstrate that an advanced development drilling and pressure maintenance program can significantly improve oil recovery compared to existing technology applications and (2) to transfer these advanced methodologies to oil and gas producers in the Permian Basin and elsewhere throughout the US oil and gas industry. Results obtained to date are summarized for the following: geostatistics and reservoir mapping; reservoir engineering; reservoir characterization/reservoir simulation; miscible recovery simulations; and technology transfer.
Date: April 30, 1998
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Advanced Reservoir Characterization and Evaluation of C02 Gravity Drainage in the Naturally Fractured Sprayberry Trend Area (open access)

Advanced Reservoir Characterization and Evaluation of C02 Gravity Drainage in the Naturally Fractured Sprayberry Trend Area

The objective is to assess the economic feasibility of CO2 flooding of the naturally fractured Straberry Trend Area in west Texas. Research is being conducted in the extensive characterization of the reservoirs, the experimental studies of crude oil/brine/rock (COBR) interaction in the reservoirs, the analytical and numerical simulation of Spraberry reservoirs, and the experimental investigations on CO2 gravity drainage in Spraberry whole cores.
Date: April 30, 1998
Creator: Schechter, David S.
Object Type: Report
System: The UNT Digital Library
Americium/Curium Disposition Life Cycle Planning Study (open access)

Americium/Curium Disposition Life Cycle Planning Study

At the request of the Department of Energy Savannah River Office (DOE- SR), Westinghouse Savannah River Company (WSRC) evaluated concepts to complete disposition of Americium and Curium (Am/Cm) bearing materials currently located at the Savannah River Site (SRS).
Date: April 30, 1998
Creator: Jackson, W.N.; Krupa, J.; Stutts, P.; Nester, S. & Raimesch, R.
Object Type: Report
System: The UNT Digital Library
Application of Advanced Reservoir Characterization, Simulation, and Production Optimization Strategies to Maximize Recovery in Slope and Basin Clastic Reservoirs, West Texas (Delaware Basin) (open access)

Application of Advanced Reservoir Characterization, Simulation, and Production Optimization Strategies to Maximize Recovery in Slope and Basin Clastic Reservoirs, West Texas (Delaware Basin)

The objective of this project is to demonstrate that detailed reservoir characterization of slope and basin clastic reservoirs in sandstones of the Delaware Mountain Group in the Delaware Basin of West Texas and New Mexico is a cost effective way to recover a higher percentage of the original oil in place through strategic placement of infill wells and geologically based field development. Project objectives are divided into two major phases. The objectives of the reservoir characterization phase of the project were to provide a detailed understanding of the architecture and heterogeneity of two fields, the Ford Geraldine unit and Ford West field, which produce from the Bell Canyon and Cherry Canyon Formations, respectively, of the Delaware Mountain Group and to compare Bell Canyon and Cherry Canyon reservoirs. Reservoir characterization utilized 3-D seismic data, high-resolution sequence stratigraphy, subsurface field studies, outcrop characterization, and other techniques. Once the reservoir-characterization study of both fields was completed, a pilot area of approximately 1 mi 2 in one of the fields was chosen for reservoir simulation. The objectives of the implementation phase of the project are to (1) apply the knowledge gained from reservoir characterization and simulation studies to increase recovery from the demonstration area, …
Date: April 30, 1998
Creator: Dutton, Shirley P.
Object Type: Report
System: The UNT Digital Library
Biomass Reburning - Modeling/Engineering Studies (open access)

Biomass Reburning - Modeling/Engineering Studies

This project is designed to develop engineering and modeling tools for a family of NO{sub x} control technologies utilizing biomass as a reburning fuel. The second reporting period (January 1- March 31) included kinetic modeling of the reburning process while firing natural gas and biomass. Modeling was done with a kinetic mechanism that combined reactions relevant to reburning from GRI-Mech 2.11 with SNCR reactions. Experimental data obtained in a 1 MMBtu/h Boiler Simulator Facility (BSF) for reburning with natural gas and biomass were modeled using the ODF kinetic code. System was treated as a series of four one-dimensional reactors. Modeling of natural gas reburning qualitatively agrees with experimental data for a wide range of initial conditions. Modeling of furniture waste reburning does not qualitatively match experimental data due to a number of model simplifications. Future work will concentrate on improving the basic reburning model to give quantitative agreement with experiments and on search for better representation of biomass composition in kinetic modeling. Experimental data on biomass reburning are included in Appendix 3. These data were obtained during the reporting period in the scope of a coordinated program funded by the U.S. Department of Agriculture.
Date: April 30, 1998
Creator: Maly, Peter M.; Lissianski, Vitali V. & Zamansky, Vladimir M.
Object Type: Report
System: The UNT Digital Library
Ceramic materials testing and modeling (open access)

Ceramic materials testing and modeling

Certain refractory ceramics (notably oxides) have desirable properties suitable for the construction of ceramic waste containers for long term use in nuclear waste disposal applications. In particular, they are far less prone to environmental corrosion than metals under realistic repository conditions. The aqueous corrosion rates of oxides such as magnesium aluminate spinel (MgAl{sub 2}0{sub 4}) and alumina (Al{sub 2}0{sub 4}) fall in the range of a few millimeters per million years. Oxide ceramics are also not likely to be subject to microbiologically influenced corrosion, which apparently can attack most, if not all, of the available engineering metals. Ceramics have a reputation for poor mechanical performance and large, impermeable objects are not easily fabricated by most current fabrication methods. As a result, the most promising approach for incorporating ceramics in large waste packages appears to be to apply a high density ceramic coating to a supporting metallic structure. Ceramic coatings 2048 applied by a thermal spray technique can be made effectively seamless and provide a method for final closure of the waste package while maintaining low average temperatures for the entire assembly. The corrosion resistance of the ceramic should prevent or delay water penetration to the underlying metal, which will in …
Date: April 30, 1998
Creator: Wilfinger, K. R., LLNL
Object Type: Report
System: The UNT Digital Library
Conceptual design statement of work for the immobilized low-activity waste disposal facility, project W-520 (open access)

Conceptual design statement of work for the immobilized low-activity waste disposal facility, project W-520

This Statement of Work outlines the deliverables and schedule for preparation of the Project W-520 Conceptual Design Report, including, work plans, site development plan, preliminary safety evaluation, and conceptual design.
Date: April 30, 1998
Creator: Pickett, W.W.
Object Type: Report
System: The UNT Digital Library
Development of a Phenomenological Model for Coal Slurry Atomization (open access)

Development of a Phenomenological Model for Coal Slurry Atomization

A contracting flow viscometer was designed and constructed by Adelphi University. Calibration was conducted using a variety of fluids and suspensions.
Date: April 30, 1998
Creator: Dooher, John P.
Object Type: Report
System: The UNT Digital Library
Electron beam distortions in beam-beam compensation set-up (open access)

Electron beam distortions in beam-beam compensation set-up

This article is devoted to electron beam distortions in the ``electron compressor`` setup for beam-beam compensation in the Tevatron collider. Effects of electron space charge force and interaction of the electron beam with impacting elliptical antiproton beam are studied. We make an estimate of longitudinal magnetic field necessary to keep the electron beam distortions low.
Date: April 30, 1998
Creator: Shiltsev, V. & Zinchenko, A.
Object Type: Report
System: The UNT Digital Library
Evaluation of replacement thread lubricants for red lead and graphite in mineral oil (open access)

Evaluation of replacement thread lubricants for red lead and graphite in mineral oil

Eight commercially available thread lubricants were evaluated to determine the best replacement for Red Lead and Graphite in Mineral Oil (RLGMO). The evaluation included coefficient of friction testing, high temperature anti-seizing testing, room temperature anti-galling testing, chemical analysis for detrimental impurities, corrosion testing, off-gas testing, and a review of health and environmental factors. The coefficient of friction testing covered a wide variety of factors including stud, nut, and washer materials, sizes, manufacturing methods, surface coatings, surface finishes, applied loads, run-in cycles, and relubrication. Only one lubricant, Dow Corning Molykote P37, met all the criteria established for a replacement lubricant. It has a coefficient of friction range similar to RLGMO. Therefore, it can be substituted directly for RLGMO without changing the currently specified fastener torque values for the sizes, materials and conditions evaluated. Other lubricants did not perform as well as Molykote P37 in one or more test or evaluation categories.
Date: April 30, 1998
Creator: Jungling, T.L.; Rauth, D.R. & Goldberg, D.
Object Type: Report
System: The UNT Digital Library
Experiments and Computational Modeling of Pulverized-Coal Ignition (open access)

Experiments and Computational Modeling of Pulverized-Coal Ignition

Under typical conditions of pulverized-coal combustion, which is characterized by fine particles heated at very high rates, there is currently a lack of certainty regarding the ignition mechanism of bituminous and lower rank coals. It is unclear whether ignition occurs first at the particle-oxygen interface (heterogeneous ignition) or if it occurs in the gas phase due to ignition of the devolatilization products (homogeneous ignition). There have been no previous studies aimed at determining the dependence of the ignition mechanism on variations in experimental conditions, such as particle size, oxygen concentration, and heating rate. There is a need to improve current mathematical models of ignition to realistically and accurately depict the particle-to-particle variations that exist within a coal sample to enable the extraction of useful reaction parameters from ignition studies, and to interpret ignition data in a more meaningful way. We examine fundamental aspects of coal ignition through experiments to determine the ignition mechanism of various coals by direct observation, and modeling of the ignition process to derive rate constants to provide a more insightful interpretation of data from ignition experiments. The heating source will be a pulsed, carbon-dioxide laser in which both the pulse energy and pulse duration are independently …
Date: April 30, 1998
Creator: Chen, John C.
Object Type: Report
System: The UNT Digital Library
Final Report: Rotating anode x-ray source, January 1, 1996 - April 30, 1998 (open access)

Final Report: Rotating anode x-ray source, January 1, 1996 - April 30, 1998

The 18 KW Rigaku high brilliance rotating anode X-ray source with four-circle qoniometer is used for X-ray diffraction characterization on thin films. This X-ray source can determine the crystal structures of a wide variety of thin materials of the type used in the semiconductor and magnetic data storage industries.
Date: April 30, 1998
Creator: Falco, Charles M.
Object Type: Report
System: The UNT Digital Library
Gulf Coast assessment overview/charge to the workshop (open access)

Gulf Coast assessment overview/charge to the workshop

There are several reasons that the U. S. Global Change Research Program (USGCRP) has initiated the U.S. National Assessment: The Potential Consequences of Climate Variability and Change. The reasons all revolve around answering questions posed in Washington by members of Congress on behalf of their constituents as to why climate change concerns them. This workshop is part of the process for getting better answers to these questions. This paper briefly reviews the science of climate change and the human influence on climate change, discusses future climate change, and considers national and international perspectives on global change. It discusses the potential for mitigation of climate change and the need to cope with climate change. The author explains the U.S. National Assessment.
Date: April 30, 1998
Creator: MacCracken, M C
Object Type: Article
System: The UNT Digital Library
Index of refraction versus oxygen partial pressure for tantalum oxide and silicon dioxide films produced by ion beam deposition (open access)

Index of refraction versus oxygen partial pressure for tantalum oxide and silicon dioxide films produced by ion beam deposition

Tantalum oxide and silicon oxide films were made using an ion beam sputtering system. It was found that even though these films were deposited from oxide targets, additions of oxygen were necessary to achieve stoichiometry and hence index of refraction. It was observed that the tantalum oxide target changed color from white to gray, indicating that the oxygen was being depleted from the target. The addition of oxygen to the chamber during deposition replenished the target and improved film stoichiometry. The deposition rate decreased with increasing oxygen partial pressure. It was experimentally determined that by varying the oxygen partial pressure and keeping all other variables fixed, the index of refraction of the film changed in a predictable manner. That is, as the oxygen partial pressure was increased, the index decreased rapidly initially and then reached a saturation point where it stayed fixed with oxygen content. With this data a coating process can be set up using the minimum amount of oxygen (thus increasing filament lifetime) to produce a fully stoichiometric film that has a fixed index. This paper will present the details of these observations and results.
Date: April 30, 1998
Creator: Goward, W. D.; Petersen, H. E.; Dijaili, S. P. & Walker, J. D.
Object Type: Article
System: The UNT Digital Library
MECHANISTIC STUDIES AND DESIGN OF HIGHLY ACTIVE CUPRATE CATALYSTS FOR THE DIRECT DECOMPOSITION AND SELECTIVE REDUCTION OF NITRIC OXIDE AND HYDROCARBONS TO NITROGEN FOR ABATEMENT OF STACK EMISSIONS (open access)

MECHANISTIC STUDIES AND DESIGN OF HIGHLY ACTIVE CUPRATE CATALYSTS FOR THE DIRECT DECOMPOSITION AND SELECTIVE REDUCTION OF NITRIC OXIDE AND HYDROCARBONS TO NITROGEN FOR ABATEMENT OF STACK EMISSIONS

A flow trough type catalytic reactor system was adequately modified for NO related catalytic and adsorption measurements, including the on-line connection of a digital chemiluminescent NO-NO{sub x} analyzer to the reactor outlet system. Moreover, we have largely completed the installation of an FTIR coupled catalytic system containing a HTEC cell for high temperature DRIFT studies. Three different barium cuprate samples, Ba{sub 2}CuO{sub 3}, BaCuO{sub 2}, and Ba{sub 2}Cu{sub 3}O{sub 5} were synthesized and characterized by powder XRD for catalytic tests. Prior to catalytic studies over these cuprates, a new, liquid indium based supported molten metal catalyst (In-SMMC) was tested in the reduction of NO by various reductants. In the presence of excess O{sub 2} and H{sub 2}O, the In-SMMC proved to be more active for the selective catalytic reduction (SCR) of NO to N{sub 2} by ethanol than most other catalysts. Using C{sub 1}-C{sub 3} alcohols as reductants, self sustained periodic oscillations observed in the NO{sub x} concentrations of reactor effluents indicated the first time that radical intermediates can be involved in the SCR of NO by alcohols. Further, In-SMMC is the only effective and water tolerant SCR catalyst reported thus far which contains SiO{sub 2} support. Thus, this novel …
Date: April 30, 1998
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Modeling of Thomson scattering spectra in high-z, laser produced plasmas (open access)

Modeling of Thomson scattering spectra in high-z, laser produced plasmas

Theoretical calculations of a Thomson scattering cross section and dynamical form factors are presented for high-Z laser produced inhomogeneous plasmas. Relevance of these results to astrophysical plasmas is pointed out. Comparisons with recent experimental observations are discussed with emphasis on the effects of plasma inhomogeneity, ion-ion collisions and non-Maxwellian distribution functions.
Date: April 30, 1998
Creator: Rozmus, W., LLNL
Object Type: Article
System: The UNT Digital Library
OPTIMIZATION OF ADVANCED FILTER SYSTEMS (open access)

OPTIMIZATION OF ADVANCED FILTER SYSTEMS

Reliable, maintainable and cost effective hot gas particulate filter technology is critical to the successful commercialization of advanced, coal-fired power generation technologies, such as IGCC and PFBC. In pilot plant testing, the operating reliability of hot gas particulate filters have been periodically compromised by process issues, such as process upsets and difficult ash cake behavior (ash bridging and sintering), and by design issues, such as cantilevered filter elements damaged by ash bridging, or excessively close packing of filtering surfaces resulting in unacceptable pressure drop or filtering surface plugging. This test experience has focused the issues and has helped to define advanced hot gas filter design concepts that offer higher reliability. Westinghouse has identified two advanced ceramic barrier filter concepts that are configured to minimize the possibility of ash bridge formation and to be robust against ash bridges should they occur. The ''inverted candle filter system'' uses arrays of thin-walled, ceramic candle-type filter elements with inside-surface filtering, and contains the filter elements in metal enclosures for complete separation from ash bridges. The ''sheet filter system'' uses ceramic, flat plate filter elements supported from vertical pipe-header arrays that provide geometry that avoids the buildup of ash bridges and allows free fall of …
Date: April 30, 1998
Creator: Newby, R. A.; Bruck, G. J.; Alvin, M. A. & Lippert, T. E.
Object Type: Report
System: The UNT Digital Library
Organic solvent topical report (open access)

Organic solvent topical report

This report is the technical basis for the accident and consequence analyses used in the Hanford Tank Farms Basis for Interim Operation. The report also contains the scientific and engineering information and reference material needed to understand the organic solvent safety issue. This report includes comments received from the Chemical Reactions Subcommittee of the Tank Advisory Panel.
Date: April 30, 1998
Creator: Cowley, W. L.
Object Type: Report
System: The UNT Digital Library
PEPCO turbo-Z battery charger system. Technical progress report, calendar quarter ending March 31, 1998 (open access)

PEPCO turbo-Z battery charger system. Technical progress report, calendar quarter ending March 31, 1998

During the First Quarter of 1998, the engineers working on this Grant have dramatically increased the rate of work. They are developing a Flexible Battery Charger Control Board, a Battery Charger Test Stand, and writing software that can be used with both. The status is as follows: (a) Flexible Battery Charger Control Board -- a preliminary electrical design is complete. They are now investigating how the control design might incorporate provisions for an additional Electric Vehicle charging feature. This additional design is based on SAE J2293 -- Recommended Practice for EV Communications. Investigation of J2293 is being considered for controlling a power supply using proprietary Capacitive Charging Coupler, and controlling the power supply with this control board. (b) Battery Test Stand -- the preliminary hardware design is complete. The design includes some very desirable additions to the specifications, including an AC line source for the charger being tested and a battery simulator. Purchasing of the equipment and materials for the test stand is underway. The engineers have been working in the SAE standards setting committees for Electric Vehicles for several years. In particular, they have been working to set the Capacitive Coupler as the standard for connecting an EV to …
Date: April 30, 1998
Creator: Rose, J.
Object Type: Report
System: The UNT Digital Library
Plutonium Immobilization Project, Project Office Quality Assurance Program Description Revision 1 (open access)

Plutonium Immobilization Project, Project Office Quality Assurance Program Description Revision 1

''The quality assurance activity involves the establishment and implementation of the Quality Assurance Program and the development of a Quality Assurance Plan and Procedures. Quality Assurance provides the plans, procedures and controls that are required for repository acceptance and the immobilization plant licensing and design activities.'' The Plutonium Immobilization Project (PIP) has a policy that all development, testing and operational activities be planned and performed in accordance with its customer's needs and expectations, and with a commitment to excellence and continuous improvement. The Immobilization Development and Testing (D&T) Quality Assurance Program establishes implementation requirements which, when completed, will ensure that the program development and test activities conform to the appropriate QA requirements. In order for the program to be effective, a designated quality lead must be in place at the Project Office and each participating site.
Date: April 30, 1998
Creator: Kan, T.
Object Type: Report
System: The UNT Digital Library
Prediction of Gas Injection Performance for Heterogeneous Reservoirs (open access)

Prediction of Gas Injection Performance for Heterogeneous Reservoirs

This report describes research into gas injection processes in four main areas: laboratory experiments to measure three-phase relative permeability; network modeling to predict three-phase relative permeability; benchmark simulations of gas injection and water flooding at the field scale; and the development of fast streamline techniques to study field-scale ow. The aim of the work is to achieve a comprehensive description of gas injection processes from the pore to the core to the reservoir scale. To this end, measurements of three-phase relative pemeability have been made and compared with predictions from pore scale modeling. At the field scale, streamline-based simulation has been extended to compositional displacements, providing a rapid method to predict oil recovery from gas injection.
Date: April 30, 1998
Creator: Franklin M. Orr, Jr. & Blunt, Martin J.
Object Type: Report
System: The UNT Digital Library
Recent advances in the chemical conversion of energetic materials to higher value products (open access)

Recent advances in the chemical conversion of energetic materials to higher value products

The objective of this program is to develop novel R3 (Resource Recovery and Recycling) alternatives to the open burning/open denotation (OB/OD) of surplus energetic materials higher value products potentially provides environmentally sound and cost- effective alternatives to OB/OD. Our recent studies on the conversion of surplus energetic materials (high explosives, propellants). The use of energetic materials as chemical feedstocks for higher value products potentially provides environmentally sound and cost-effective alternatives to OB/OD. Our recent studies on the conversion of surplus energetic materials to higher value products will be described.
Date: April 30, 1998
Creator: Mitchell, A. R.; Pagoria, P. F. & Schmidt, R. D.
Object Type: Article
System: The UNT Digital Library
RoboCon: Operator interface for robotic applications. Final report: RoboCon electrical interfacing -- system architecture, and Interfacing NDDS and LabView (open access)

RoboCon: Operator interface for robotic applications. Final report: RoboCon electrical interfacing -- system architecture, and Interfacing NDDS and LabView

The first appendix contains detailed specifications of the electrical interfacing employed in Robocon. This includes all electrical signals and power requirement descriptions up to and including the interface entry points for external robots and systems. The reader is first presented with an overview of the overall Robocon electrical system, followed by sub-sections describing each module in detail. The appendices contain listings of power requirements and the electrical connectors and cables used, followed by an overall electrical system diagram. Custom electronics employed are also described. The Network Data Delivery Service (NDDS) is a real-time dissemination communications architecture which allows nodes on a network to publish data and subscribe to data published by other nodes while remaining anonymous. The second appendix explains how to facilitate a seamless interface between NDDS and LabView and provides sample source code used to implement an NDDS consumer which writes a string to a socket.
Date: April 30, 1998
Creator: Schempf, H.
Object Type: Report
System: The UNT Digital Library