Serial/Series Title
Habitat Evaluation Procedures Report
5
Proceedings of the Workshop on Geothermal Reservoir Engineering
4
Analysis of Devonian Black Shales in Kentucky for Potential Carbon Dioxide Sequestration and Enhanced Natural Gas Production Quarterly Report
3
Development of More-Efficient Gas Flooding Applicable to Shallow Reservoirs Progress Report
3
Petroleum Supply Monthly
3
Annual Illness and Injury Surveillance Report
2
Establishment of an Industry-Driven Consortium Focused on Improving the Production Performance of Domestic Stripper Wells Quarterly Report
2
Fiscal Year 2001
2
Fiscal Year 2002
2
Fiscal Year 2003
2
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Design and Implementation of a CO2 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells In a Shallow Shelf Carbonate Approaching Waterflood Depletion
The first project objective is to utilize reservoir characterization and advanced technologies to optimize the design of a carbon dioxide (CO2) project for the South Cowden Unit (SCU) located in Ector County, Texas. The SCU is a mature, relatively small, shallow shelf carbonate unit nearing waterflood depletion. The second project objective is to demonstrate the performance and economic viability of the project in the field. All work during the fourth quarter falls within the demonstration project.
Date:
October 28, 1999
Creator:
Czirr, Kirk
Object Type:
Report
System:
The UNT Digital Library
Assessment of Unabated Facility Emission Potentials for Evaluating Airborne Radionuclide Monitoring Requirements at Pacific Northwest National Laboratory - 1999
Assessments were performed to evaluate compliance with the airborne radionuclide emission monitoring requirements in the National Emission Standards for Hazardous Air Pollutants (NESHAP--US Code of Federal Regulations, Title 40 Part 61, Subpart H). In these assessments, potential unabated offsite doses were evaluated for emission locations at facilities owned by the US Department of Energy and operated by Pacific Northwest National Laboratory (Pacific Northwest) on the Hanford Site. Two of the facilities evaluated, 325 Building Radiochemical Processing Laboratory, and 331 Building Life Sciences Laboratory met state and federal criteria for continuous sampling of airborne radionuclide emissions. One other building, the 3720 Environmental Sciences Laboratory, was recognized as being in transition with the potential for meeting the continuous sampling criteria.
Date:
September 28, 1999
Creator:
Edwards, D. L.; Shields, K. D.; Sula, M. J. & Ballinger, M. Y.
Object Type:
Report
System:
The UNT Digital Library
Can solid-state laser technology serve usefully beyond fusion ignition facilities?
We have explored the major technical and conceptual issues relating to the suitability of a diode-pumped solid state laser as a driver for an inertial fusion energy power plant. While solid state lasers have long served as the workhorse of inertial confinement fusion physics studies, the deployment of a driver possessing adequate efficiency, reliability, and repetition rate for inertial fusion energy requires the implementation of several technical innovations discussed in this article.
Date:
July 28, 1995
Creator:
Payne, S. A.; Powell, H. T. & Krupke, W. F.
Object Type:
Article
System:
The UNT Digital Library
Overture: object-oriented tools for overset grid applications
The Overture framework is an object-oriented environment for solving partial differential equations in two and three space dimensions. It is a collection of C++ libraries that enables the use of finite difference and finite volume methods at a level that hides the details of the associated data structures. Overture can be used to solve problems in complicated, moving geometries using the method of overlapping grids. It has support for grid generation, difference operators, boundary conditions, data-base access and graphics. Short sample code segments are presented to show the power of this approach.
Date:
April 28, 1999
Creator:
Brown, D L; Henshaw, W D & Quinlan, D J
Object Type:
Article
System:
The UNT Digital Library
Opto-mechanical design and fabrication services. Final report
Each of the seven tasks defined under this contract are discussed here. They include: (1) design support for an x-ray spectrometer for the ``Panchuela`` down-hole experiment at the Nevada Test Site; (2) development and demonstration of an optical alignment method for aligning the 180 degree bend achromatic magnetic section of the Ground Test Accelerator; (3) development of magnet support and manipulation concepts for the 17 magnets of the Ground Test Accelerator; (4) design support for the triplett magnet telescope assembly and its support structure (Neutral Particle Beam Program); (5) design and support for the beam diagnostic system for the Argonne Particle Beam experiment; (6) conceptual design for the modification of an Antares Marx tank for use in the Aurora Laser Program; and (7) design of poloidal gap for the Los Alamos ZTH reversed-field pinch machine.
Date:
February 28, 1988
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Improved Efficiency of Miscible CO2 Floods and Enhanced Prospects for CO2 Flooding Heterogeneous Reservoirs
Continued testing the horizontal-well capabilities of MASTER, the DOE's pseudomiscible reservoir simulator, by running simulation tests with several combinations of horizontal and vertical wells and various alternative reservoir descriptions. These sensitivity tests were compared and validated using simulation results from a commercial simulator. This sensitivity study was used in conjunction with our numerical tests on the comparison of foam injection processes and horizontal well injection processes. In addition, a preprocessor used to set up the input file to MASTER and a postprocessor for plotting the well performance were completed. Tests were progressed and the official version of MASTER will be released in the next few months.
Date:
October 28, 1999
Creator:
Grigg, Reid B.
Object Type:
Report
System:
The UNT Digital Library
International petroleum statistics report, March 1994
The International Petroleum Statistics Report presents data on international oil production, demand, imports, exports, and stocks. The report has four sections. Section 1 contains time series data on world oil production, and on oil demand and stocks in the Organization for Economic Cooperation and Development (OECD). This section contains annual data beginning in 1985, and monthly data for the most recent two years. Section 2 presents an oil supply/demand balance for the world. This balance is presented in quarterly intervals for the most recent two years. Section 3 presents data on oil imports by OECD countries. This section contains annual data for the most recent year, quarterly data for the most recent two quarters, and monthly data for the most recent twelve months. Section 4 presents annual time series data on world oil production and oil stocks, demand, and trade in OECD countries. World oil production and OECD demand data are for the years 1970 through 1992; OECD stocks from 1973 through 1992; and OECD trade from 1982 through 1992.
Date:
March 28, 1994
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
A coupled atmosphere-river flow simulation in California during the 1994-1995 winter
Calculation of river flow is important for managing reservoirs and flood forecasting. In the western United States, a complex terrain which is characterized by steep slopes and narrow valleys often cause a substantial rise of river levels in a short period during heavy precipitation events. Since flood control is one of the major tasks of reservoir operation, inaccurate predictions of precipitation and river flow may cause flooding or waste of water resources. Accurate calculations of river flow need accurate liquid water input to the river system at scales of individual watersheds. Precipitation and snowmelt are the most important natural source of water for a river. Reservoir operations significantly affect river flow in the western United States. Factors such as instantaneous soil water content, vegetation cover, terrain slope and ground water table structure are also crucial for river flow calculation. There are two types of precipitation: rain and snowfall. River flow quickly responds to rainfall while snowfall does not directly affect river flow until it melts afterwards. Therefore, these two types of precipitation must be separately provided to the river flow model for correct calculation of river flows. A large portion of snowfall is accumulated at high terrain during winter months …
Date:
September 28, 1995
Creator:
Kim, J. & Miller, N. L.
Object Type:
Article
System:
The UNT Digital Library
Increasing heavy oil reserves in the Wilmington oil field through advanced reservoir characterization and thermal production technologies. Quarterly technical progress report, March 30, 1995--June 30, 1995
This is the first quarterly technical progress report for the project. Although the contract was awarded on March 30, 1995 and Pre-Award Approval was given on January 26, 1995, the partners of this project initiated work on October 1, 1994. As such, this progress report summarizes the work performed from project inception. The production and injection data, reservoir engineering data, and digitized and normalized log data were all completed sufficiently by the end of the quarter to start work on the basic reservoir engineering and geologic stochastic models. Basic reservoir engineering analysis began June 1 and will continue to March, 1996. Design work for the 5 observation/core holes, oil finger printing of the cored oil sands, and tracers surveys began in January, 1995. The wells will be drilled from July--August, 1995 and tracer injection work is projected to start in October, 1995. A preliminary deterministic 3-D geologic model was completed in June which is sufficient to start work on the stochastic 3-D geologic model. The four proposed horizontal wells (two injectors and two producers) have been designed, equipment has been ordered, and the wells will be drilled from mid-August through September. Four existing steam injection wells were converted to hot …
Date:
July 28, 1995
Creator:
Clarke, D.; Ershaghi, I.; Davies, D.; Phillips, C. & Mondragon, J.
Object Type:
Report
System:
The UNT Digital Library
Detailed chemical kinetic modeling of diesel combustion with oxygenated fuels
The influence of oxygenated hydrocarbons as additives to diesel fuels on ignition, NOx emissions and soot production has been examined using a detailed chemical kinetic reaction mechanism. N-heptane was used as a representative diesel fuel, and methanol, ethanol, dimethyl ether and dimethoxymethane were used as oxygenated fuel additives. It was found that addition of oxygenated hydrocarbons reduced NOx levels and reduced the production of soot precursors. When the overall oxygen content in the fuel reached approximately 25% by mass, production of soot precursors fell effectively to zero, in agreement with experimental studies. The kinetic factors responsible for these observations are discussed.
Date:
October 28, 1999
Creator:
Pitz, W J; Curran, H J; Fisher, E; Glaude, P A; Marinov, N M & Westbrook, C K
Object Type:
Article
System:
The UNT Digital Library
Separation of Flue-Gas Scrubber Sludge into Marketable Products
The reduction of sulfur oxides from high sulfur coal burning utility companies has resulted in the production of huge quantities of wet flue-gas desulfurization scrubber sludge. A typical 400 MW power station burning a coal containing 3.5% sulfur by weight and using a limestone absorbent would produce approximately 177,000 tons (dry weight) of scrubber sludge per year. This brownish colored, finely divided material contains calcium sulfite (CaSO{sub 3} {center_dot} 1/2 H{sub 2}O), calcium sulfate (CaSO{sub 4} {center_dot} 2H{sub 2}O), unreacted limestone (CaCO{sub 3}), and various other impurities such as fly-ash and iron oxide particles. The physical separation of the components of scrubber sludge would result in the re-use of this material. The primary use would be conversion to a highly pure synthetic gypsum. This technical report concentrates on the effect of baffle configuration on the separation of calcium sulfite/sulfate from limestone. The position of the baffles as they related to the feed inlet, and the quantity of the baffles were examined. A clean calcium sulfite/sulfate (less than 2.0% limestone by weight) was achieved with the combination of water-only cyclone and horizontally baffled column.
Date:
February 28, 1998
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Evaluation of the Northern Squawfish Management Program : Final Report of Research, 1990-1996.
This document is the final report of research conducted from 1990-96 by the Oregon Department of Fish and Wildlife (ODFW) to evaluate Bonneville Power Administration (BPA) project 90-077, the Northern Squawfish Management Program (NSMP). The Summary of Project summarizes and integrates the results, conclusions, and recommendations of the evaluation. The report contains research papers that describe how we addressed project objectives, how we reached our conclusions, and why we made our recommendations. The papers are listed and numbered consecutively in the Table of Contents and the numbers are used to reference each paper in the Summary of Project. It is the integration of these individual papers that provides the best picture of the current status of the NSMP.
Date:
October 28, 1998
Creator:
Ward, David L.
Object Type:
Report
System:
The UNT Digital Library
A theoretical comparison of evolutionary algorithms and simulated annealing
This paper theoretically compares the performance of simulated annealing and evolutionary algorithms. Our main result is that under mild conditions a wide variety of evolutionary algorithms can be shown to have greater performance than simulated annealing after a sufficiently large number of function evaluations. This class of EAs includes variants of evolutionary strategie and evolutionary programming, the canonical genetic algorithm, as well as a variety of genetic algorithms that have been applied to combinatorial optimization problems. The proof of this result is based on a performance analysis of a very general class of stochastic optimization algorithms, which has implications for the performance of a variety of other optimization algorithm.
Date:
August 28, 1995
Creator:
Hart, W.E.
Object Type:
Article
System:
The UNT Digital Library
The Tunnel Sealing Experiment: An In Situ Demonstration of Technologies for Vault Sealing
Two bulkheads, one composed of high performance concrete and the other of highly compacted sand-bentonite material, have been constructed in a tunnel in unfractured granite rock at the Underground Research Laboratory. The Tunnel Sealing Experiment will characterize the performance of the two bulkheads under applied hydraulic pressures. The chamber between the two bulkheads will be pressurized to approximately 4 MPa, a value representative of the ambient pore pressures in the rock at a depth of 420 m. Instrumentation in the experiment monitors the seepage through and around each bulkhead as well as the changes tot he pure water pressure, and hence changes to the flow directions,in the intact rock. Stresses and displacements in each bulkhead are also monitored. The objective of the experiment is to demonstrate technologies for contrustion of bentonite and concrete bulkheads and to quantify the performance of each bulkhead.
Date:
October 28, 1998
Creator:
Chandler, N.; Cournut, A.; Dixon, D.; Gray, M.; Hara, K. & Tillerson, J.
Object Type:
Article
System:
The UNT Digital Library
Vault lining for 340 waste handling facility, 300 area
Coating systems by Protection Enterprises, Ameron, Carboline, and Steelcote were evaluated. Each manufacturer has a coating system that is acceptable for use in the 340 Vault (see Appendix A). The choice of which system to use will be made after in-place adhesion tests are complete. The Protection Enterprises coating has the greatest potential for acceptable adhesion with minimal surface preparation. Total project cost for engineering and construction is $1,220,000 including 50% for contingency (see Appendix B). If the existing vault coverblock access hatch can satisfy entry requirements, $95,000 can be saved from the removal of coverblocks and the erection and disassembly of the greenhouse.
Date:
April 28, 1997
Creator:
Hollenbeck, R.G.
Object Type:
Report
System:
The UNT Digital Library
Model Watershed Development in Eastern Washington, Administrative Project Support, Annual Progress Report
The purpose of the Model Watershed Coordinator Grant was to help impact water quality and fisheries habitat concerns within the Asotin Creek Watershed by developing relationships between local landowners and resource agencies in the area.
Date:
October 28, 1998
Creator:
Bottman, Bob; Bartels, Duane & Johnson, Bradley J.
Object Type:
Report
System:
The UNT Digital Library
AXAIR and PUFF-PLUME Comparison
A test version of AXAIR has been prepared to compare with PUFF-PLUME. The test version of AXAIR applies the same meteorological conditions as PUFF-PLUME and also the dispersion coefficients have been changed to be the same as those in PUFF-PLUME. The test version of AXAIR and PUFF-PLUME produce virtually the same doses with the differences being less than 3% for the select cases with similar input. Differences and similarities in the models are also addressed.
Date:
September 28, 1995
Creator:
Simpkins, A.A. & Kurzeja, R.J.
Object Type:
Report
System:
The UNT Digital Library
THE COUPLING IMPEDANCE OF THE RHIC INJECTION KICKER SYSTEM.
IN THIS PAPER, RESULTS FROM IMPEDANCE MEASUREMENTS ON THE RHIC INJECTION KICKERS ARE REPORTED. THE KICKER IS CONFIGURED AS A ''C'' CROSS SECTION MAGNET WITH INTERLEAVED FERRITE AND HIGH-PERMITTIVITY DIELECTRIC SECTIONS TO ACHIEVE A TRAVELLING WAVE STRUCTURE. THE IMPEDANCE WAS MEASURED USING THE WIRE METHOD, AND ACCURATE RESULTS ARE OBTAINED BY INTERPRETING THE FORWARD SCATTERING COEFFICIENT VIA THE LONG-FORMULA. THE FOUR KICKERS WITH THEIR CERAMIC BEAM TUBES CONTRIBUE AT Z/N-0.22 OMEGA/RING IN THE INTERESTING FREQUENCY RANGE FROM 0.1 TO 1 BHZ, AND LESS ABOVE.
Date:
June 28, 1999
Creator:
Hahn, H.
Object Type:
Article
System:
The UNT Digital Library
Postirradiation examination of high-density uranium alloy dispersion fuels.
Two irradiation test vehicles, designated RERTR-1 and RERTR-2, were inserted into the Advanced Test Reactor in Idaho in August 1997. These tests were designed to obtain irradiation performance information on a variety of potential new, high-density uranium alloy dispersion fuels, including U-10Mo,U-8Mo, U-6Mo, U-4Mo, U-9Nb-3Zr, U-6Nb-4Zr, U-5Nb-3Zr, U-6Mo-1Pt, U-6Mo-0.6Ru and U-10Mo-0.05Sn; the intermetallic compounds U{sub 2}Mo and U{sub 3}Si{sub 2} were also included in the fuel test matrix. These fuels are included in the experiments as ''microplates'' (76 mm x 22 mm x 1.3 mm outer dimensions) with a nominal fuel volume loading of 25% and irradiated at relatively low temperature ({approximately} 100 C). RERTR-1 and RERTR-2 were discharged from the reactor in November 1997 and July 1998, respectively, at calculated peak fuel burnups of 45 and 71 at.%-U{sup 235}. Both experiments are currently under examination at the Alpha Gamma Hot Cell Facility at Argonne National Laboratory in Chicago. This paper presents the postirradiation examination results available to date from these experiments.
Date:
October 28, 1998
Creator:
Hayes, S. L.
Object Type:
Article
System:
The UNT Digital Library
Assistance to the states with risk based data management. Quarterly technical progress report, April 1--June 30, 1995
The Tasks of this project are to: (1) complete implementation of a Risk Based Data Management System (RBDMS) in the States of Alaska, Mississippi, Montana, Nebraska; and (2) conduct Area of Review (AOR) Workshops in the states of California, Oklahoma, Kansas, and Texas. The RBDMS was designed to be a comprehensive database with the ability to expand into multiple areas, including oil and gas production. The database includes comprehensive well information for both producing and injection wells. It includes automated features for performing functions redated to AOR analyses, environmental risk analyses, well evaluation, permit evaluation, compliance monitoring, operator bonding assessments, operational monitoring and tracking, and more. This quarterly report describes the status of the development of the RBDMS project in both stated tasks and proposes further steps in its implementation.
Date:
July 28, 1995
Creator:
Paque, M. J.
Object Type:
Report
System:
The UNT Digital Library
Density Functional Theory of Simple Polymers in a Slit Pore: 2. The Role of Compressibility and Field Type
Simple tangent, hard site chains near a hard wall are modeled with a Density Functional (DF) theory that uses the direct correlation function, c(r), as its ''input''. Two aspects of this DF theory are focused upon: (1) the consequences of variations in c(r)'s detailed form; and (2) the correct way to introduce c(r) into the DF formalism. The most important aspect of c(r) is found to be its integrated value, {cflx c}(0). Indeed, it appears that, for fixed {cflx c}(0), all reasonable guesses of the detailed shape of c(r) result in surprisingly similar density distributions, {rho}(r). Of course, the more accurate the c(r), the better the {rho}(r). As long as the length scale introduced by c(r) is roughly the hard site diameter and as long as the solution remains liquid-like, the {rho}(r) is found to be in good agreement with simulation results. The c(r) is used in DF theory to calculate the medium-induced-potential, U{sub M}(r) from the density distribution, {rho}(r). The form of U{sub M}(r) can be chosen to be one of a number of different forms. It is found that the forms for U{sub M}(r), which yield the most accurate results for the wall problem, are also those which …
Date:
October 28, 1999
Creator:
CURRO,JOHN G.; HOOPER,JUSTIN B.; MCCOY,JOHN D.; PILEGGI, MORGAN T. & WEINHOLD,JEFFREY D.
Object Type:
Article
System:
The UNT Digital Library
Electronic effects at interfaces in Cu - Cr, Mo, Ta, Re Multilayers
In this study we characterize electronic effects in short-period ({approx}20 {angstrom}) metallic multilayer films in which 40% of the atoms are at an interface using near-edge (L{sub 3,2}) x-ray absorption. This study investigates Cu/TM where TM = Cr, MO, W, Ta, Re. These immiscible elemental pairs are ideal to study as they form no compounds and exhibit terminal solid solubility. An interest in the charge transfer between elements in alloys and compounds has led to studies using x-ray absorption as described above. Near edge x-ray absorption fine structure (NEXAFS), a technique used for analyzing x-ray absorption near the absorption edge of the element, is especially suited to study the amount of unoccupied states in the conduction band of a metal. The d-metals spectra show large peaks at the absorption edges called ''white lines.'' These are due to the unoccupied d-states just above the Fermi level in these metals. A study of the white lines in the 3d metals show that as the d-band is increasingly occupied the white lines decrease in intensity. Starting with Ti (3d{sup 2} 4s{sup 2}), which has an almost empty d-band and shows strong white lines, the white-line intensities decrease across the Periodic Chart to Cu …
Date:
June 28, 1999
Creator:
Barbee, T. W.; Bello, A. F.; Klepeis, J. E. & Van Buuren, T.
Object Type:
Report
System:
The UNT Digital Library
Structural Evolution of Carbon During Oxidation
The examination of the structural evolution of carbon during oxidation has proven to be of scientific interest. Early modeling work of fluidized bed combustion showed that most of the reactions of interest occurs iOn the micropores, and this work has concentrated on these pores. This work has concentrated on evolution of macroporosity and rnicroporosity of carbons during kinetic controlled oxidation using SAXS, C02 and TEM analysis. Simple studies of fluidized bed combustion of coal chars has shown that many of the events considered fragmentation events previously may in fact be "hidden" or nonaccessible porosity. This makes the study of the microporous combustion characteristics of carbon even more important. The generation of a combustion resistant grid, coupled with measurements of the SAXS and C02 surface areas, fractal analysis and TEM studies has confined that soot particles shrink during their oxidation, as previously suspected. However, this shrinkage results in an overall change in structure. This structure becomes, on a radial basis, much more ordered near the edges, while the center itself becomes transparent to the TEM beam, implying a total lack of structure in this region. Although complex, this carbon structure is probably burning as to keep the density of the soot …
Date:
October 28, 1998
Creator:
Sarofim, Adel F. & Kandas, Angelo
Object Type:
Report
System:
The UNT Digital Library
Design and Implementation of a C02 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells in a Shallow Carbonate Approaching Waterflood Depletion
The first project objective is to utilize reservoir characterization and advanced technologies to optimize the design of a carbon dioxide (CO2) project for the South Cowden Unit (SCU) located in Ector County, Texas. The SCU is a mature, relatively small, shallow shelf carbonate unit nearing waterflood depletion. The second project objective is to demonstrate the performance and economic viability of the project in the field. All work during the fourth quarter falls within the demonstration project.
Date:
April 28, 1998
Creator:
Bles, J. Scott & Dollens, Kimberly B.
Object Type:
Report
System:
The UNT Digital Library