Search Results

Advanced search parameters have been applied.
open access

Sixty-sixth annual report of the state oil and gas supervisor

Description: This report contains tabulated oil and gas statistics compiled during 1980 in California. On-shore and off-shore oil production, gas production, reserves, drilling activity, enhanced recovery activity, unconventional heavy oil recovery, geothermal operations and financial data are reported. (DMC)
Date: January 1, 1981
Partner: UNT Libraries Government Documents Department
open access

Thermophysical properties of coal liquids. Seventh quarterly technical status report, April 1-June 30, 1981

Description: Measurements of rheological properties have been continued. Measurements at relatively low temperature (450 K) showed that a coarser coal grind shows substantially lower viscosity. It was also shown that coal and solvent obtained from the Fort Lewis plant give slurries of much higher viscosity than slurries from our reference coal and solvent. At higher temperatures (540 K) substantially the same relationships were shown. The effect of solvent-to-coal ratio was also found to be very great. Diff… more
Date: July 17, 1981
Creator: Droege, J. W.; Venkateswar, R. & Chauhan, S. P.
Partner: UNT Libraries Government Documents Department
open access

Effects of composition on properties in an 11-component nuclear waste glass system

Description: Ninety simplified nuclear waste glass compositions within an 11-component oxide composition matrix were tested for crystallinity, viscosity, volatility, and chemical durability. Empirical models of property response as a function of glass composition were developed using statistical experimental design and modeling techniques. A new statistical technique was developed to calculate the effects of oxide components on each property. Independent melts were used to check the prediction accuracy of t… more
Date: September 1, 1981
Creator: Chick, L. A.; Piepel, G. F.; Mellinger, G. B.; May, R. P.; Gray, W. J. & Buckwalter, C. Q.
Partner: UNT Libraries Government Documents Department
open access

Heat transfer in porous media with fluid phase changes

Description: A one-dimensional experimental apparatus was built to study the heat pipe phenomenon. Basically, it consists of a 25 cm long, 2.5 cm I.D. Lexane tube packed with Ottawa sand. The two ends of the tube were subjected to different tempratures, i.e., one above the boiling temperature and the other below. The tube was well insulated so that a uniform one-dimensional heat flux could pass through the sand pack. Presence of the heat pipe phenomenon was confirmed by the temperature and saturation profil… more
Date: June 1, 1981
Creator: Su, H.J.
Partner: UNT Libraries Government Documents Department
open access

Hyperbolic models for two-phase (or two-material) flow

Description: For some time it has been known that many of the two-phase flow models lead to ill-posed problems unless viscous stresses are included. The inclusion of viscous stresses changes the character of the equations from hyperbolic to parabolic. A continuing problem has been to find a well-posed hyperbolic system of equations which provide a reasonable model for two-phase flow, or to show that no such model exists. Another outstanding problem has been to understand why the derivation procedures for mi… more
Date: August 1, 1981
Creator: Hicks, D.L.
Partner: UNT Libraries Government Documents Department
open access

Rheological characterization of cementitious grouts used to dispose of intermediate-level radioactive waste by hydrofracturing at Oak Ridge National Laboratory

Description: The hydrofracturing process is a waste disposal process in use at the Oak Ridge National Laboratory for the permanent disposal of locally generated waste solutions. This process is now being modified for use in the disposal of sludge that results from the sodium hydroxide neutralization of acid waste solutions. In this process, the sludges will be slurried in a bentonite clay suspension and mixed with a solids blend of cement and other additives. The amount of dry solids required for each liter… more
Date: January 1, 1981
Creator: McDaniel, E.W. & Moore, J.G.
Partner: UNT Libraries Government Documents Department
open access

Vacuum deposition of high-quality metal films on porous substrates

Description: A composite mandrel has been developed consisting of a core of low density polymethylpentene foam overcoated with a thin layer of film forming polymer. The surface tension and viscosity of the coating solution are important parameters in obtaining a polymer film which forms a continuous, smooth skin over the core without penetrating into the foam matrix. Water soluble film formers with surface tensions in the range of 45 dynes/cm and minimum viscosities of a few hundred centipoises have been fo… more
Date: January 1, 1981
Creator: Barthell, B. L. & Duchane, D. V.
Partner: UNT Libraries Government Documents Department
open access

Supercritical fluids for reaction and extraction of coal and heavy oils. First quarterly progress report, September 1, 1981-November 30, 1981

Description: A program for the study of supercritical extraction of coal and coal liquids is being carried out. The purpose of this study is aimed at developing a fundamental understanding of supercritical extraction with emphasis on extraction of coal liquids with supercritical water and deashing of coal liquids, SRC-bottoms and possibly shale oils. The study will focus on the use of supercritical extraction techniques for extraction and fractionation of heavy residues which are often mixed with mineral ma… more
Date: December 1, 1981
Creator: Holder, G. D.; Gopal, J. & Deshpande, G. V.
Partner: UNT Libraries Government Documents Department
open access

Power-law rheology and flow behavior of low-invasion coring fluids

Description: An improved pressure coring system has been developed in which an extremely viscous polymer mud is extruded by the core and is used to seal and protect the core from flushing by drilling fluids. The polymer mud must be extremely viscous to minimize invasion, yet must be extruded through a long, narrow annular gap with a minimum of pressure buildup. A highly non-Newtonian shear-thinning polymer is utilized in the low invasion coring fluid. This paper describes the measurement and modeling of non… more
Date: August 1, 1981
Creator: McGuire, P. L.
Partner: UNT Libraries Government Documents Department
open access

Thermal phase stability of some simulated Defense waste glasses

Description: Three simulated defense waste glass compositions developed by Savannah River Laboratories were studied to determine viscosity and compositional effects on the comparative thermal phase stabilities of these glasses. The glass compositions are similar except that the 411 glasses are high in lithium and low in sodium compared to the 211 glass, and the T glasses are high in iron and low in aluminum compared to the C glass. Specimens of these glasses were heat treated using isothermal anneals as sho… more
Date: April 1, 1981
Creator: May, R.P.
Partner: UNT Libraries Government Documents Department
open access

Review of SRC-II process product hydrotreating data, for completeness and applicability to the demo plant

Description: The SRC-II product naphtha, gas oil, and whole liquid product hydrotreating data base was reviewed for completeness and applicability to the design of the SRC-II Demonstration Plant. Primary data sources were the Chevron and the UOP experimental hydrotreating work and the PNL bioassay investigations on UOP hydrotreated samples. Secondary data were the hydrotreating data for both the EDS and the H-Coal liquid products. The SRC-II product hydrotreating data are sparse at this point, but in view o… more
Date: March 1, 1981
Creator: Frazier, G.C. & Faruqi, A.
Partner: UNT Libraries Government Documents Department
open access

Heavy oil reservoirs recoverable by thermal technology. Annual report

Description: This volume contains reservoir, production, and project data for target reservoirs thermally recoverable by steam drive which are equal to or greater than 2500 feet deep and contain heavy oil in the 8 to 25/sup 0/ API gravity range. Data were collected from three source types: hands-on (A), once-removed (B), and twice-removed (C). In all cases, data were sought depicting and characterizing individual reservoirs as opposed to data covering an entire field with more than one producing interval or… more
Date: February 1, 1981
Creator: Kujawa, P.
Partner: UNT Libraries Government Documents Department
open access

Dynamic Theory: some shock wave and energy implications

Description: The Dynamic Theory, a unifying five-dimensional theory of space, time, and matter, is examined. The theory predicts an observed discrepancy between shock wave viscosity measurements at low and high pressures in aluminum, a limiting mass-to-energy conversion rate consistent with the available data, and reduced pressures in electromagneticaly contained controlled-fusion plasmas.
Date: February 1, 1981
Creator: Williams, P.E.
Partner: UNT Libraries Government Documents Department
open access

Hydrogen bonding in asphaltenes and coal liquids. Quarterly report, 1 February-30 April 1981

Description: The objective of this project is to investigate the nature and strength of hydrogen bonding and other molecular interactions in coal liquids and their fractions. Determinations are made of the molecular interactions involving the preasphaltene, asphaltent and oil, together with their separated fractions, obtained from coal liquids after hydroprocessing under different processing conditions and accelerated aging. NMR, IR, GC/MS, calorimetric, GPC, ESR, viscosity methods are used to determine str… more
Date: January 1, 1981
Creator: Li, N. C.; Jones, L. & Yaggi, N. F.
Partner: UNT Libraries Government Documents Department
open access

Molten nitrate salt technology development status report

Description: Recognizing thermal energy storage as potentially critical to the successful commercialization of solar thermal power systems, the Department of Energy (DOE) has established a comprehensive and aggressive thermal energy storage technology development program. Of the fluids proposed for heat transfer and energy storage molten nitrate salts offer significant economic advantages. The nitrate salt of most interest is a binary mixture of NaNO/sub 3/ and KNO/sub 3/. Although nitrate/nitrite mixtures … more
Date: March 1981
Creator: Carling, R. W.; Kramer, C. M.; Bradshaw, R. W.; Nissen, D. A.; Goods, S. H.; Mar, R. W. et al.
Partner: UNT Libraries Government Documents Department
open access

Geothermal fracture stimulation technology. Volume III. Geothermal fracture fluids

Description: A detailed study of all available and experimental frac fluid systems is presented. They have been examined and tested for physical properties that are important in the stimulation of hot water geothermal wells. These fluids consist of water-based systems containing high molecular weight polymers in the uncrosslinked and crosslinked state. The results of fluid testing for many systems are summarized specifically at geothermal conditions or until breakdown occurs. Some of the standard tests are … more
Date: January 1, 1981
Partner: UNT Libraries Government Documents Department
open access

Environmental effects on electron transfer from chlorophyll triplet to quinone: role of dielectric constant, viscosity and quinone structure in cellulose acetate films

Description: The effects of environmental parameters on chlorophyll triplet quenching and electron transfer to quinones have been investigated in a system consisting of donor and acceptor incorporated into a cellulose acetate film which was subsequently exposed to solvent. Triplet quenching by a diffusional mechanism was found to occur in the dry film, with steric effects being a major determinant of quencher effectiveness. No formation of separated radicals was found under these conditions, probably becaus… more
Date: January 1, 1981
Creator: Cheddar, G. & Tollin, G.
Partner: UNT Libraries Government Documents Department
open access

Scaled physical model studies of the steam drive process. Second annual report, September 1978-September 1979

Description: A scaled physical model was operated to simulate steam drive operations in five-spot patterns with reservoir and operational parameters similar to those encountered in California reservoirs. The goal of this study was to elucidate the role of two important controllable parameters, viz., steam injection rate and steam quality and to explore the role of two important factors, oil viscosity and reservoir permeability on the performance of the steam drive. In addition, the influence of bottom water… more
Date: February 1, 1981
Creator: Dosher, T.M.
Partner: UNT Libraries Government Documents Department
open access

Heavy oil reservoirs recoverable by thermal technology. Annual report

Description: This volume contains reservoir, production, and project data for target reservoirs which contain heavy oil in the 8 to 25/sup 0/ API gravity range and are susceptible to recovery by in situ combustion and steam drive. The reservoirs for steam recovery are less than 2500 feet deep to comply with state-of-the-art technology. In cases where one reservoir would be a target for in situ combustion or steam drive, that reservoir is reported in both sections. Data were collectd from three source types:… more
Date: February 1, 1981
Creator: Kujawa, P.
Partner: UNT Libraries Government Documents Department
open access

Boundary layer studies related to fusion theory. Final report

Description: The described work studied the boundary between closed and open field lines in EBT geometry, with emphasis on the microstability properties. These properties were established primarily for drift waves in the lower hybrid range of frequencies. The transport due to these modes was evaluated by a self-consistent treatment, using quasilinear models in a plasma diffusion code. The model was benchmarked against the EDT experimental results from ORNL and the sensitivity to transport model established.… more
Date: September 29, 1981
Partner: UNT Libraries Government Documents Department
open access

Conversion of atactic polypropylene waste to fuel oil. Final report

Description: A stable, convenient thermal pyrolysis process was demonstrated on a large scale pilot plant. The process successfully converted high viscosity copolymer atactic polypropylene to predominantly liquid fuels which could be burned in commercial burners. Energy yield of the process was very high - in excess of 93% including gas phase heating value. Design and operating data were obtained to permit design of a commercial size atactic conversion plant. Atactic polypropylene can be cracked at temperat… more
Date: April 1, 1981
Creator: Bhatia, J.
Partner: UNT Libraries Government Documents Department
open access

Generalized algebraic relation for predicting developing curved channel flow with a k-epsilon model of turbulence

Description: Using algebraic approximations for the Reynolds stress equations a general expression has been derived for C/sub ..mu../ in ..nu../sub t/ = C/sub ..mu../ k/sup 2//epsilon which accounts simultaneously for the effects of streamline curvature and pressure-strain in the flow, including wall-induced influences on the velocity fluctuations. The expression derived can be shown to encompass similar but more specific formulations proposed by Bradshaw, Rodi, and Leschziner and Rodi. The present formulat… more
Date: June 1, 1981
Creator: Humphrey, J.A.C. & Pourahmadi, F.
Partner: UNT Libraries Government Documents Department
open access

Bodcau in situ combustion project. Fourth annual report, September 1, 1979-February 28, 1981

Description: Objective is to demonstrate the technical efficiency and economics of a commercial scale in-situ combustion project in a shallow heavy oil reservoir. Five elongated inverted nine-spot patterns were developed for this demonstration on Cities Service Company's Bodcau Fee B lease in the Bellevue Field, Bossier Parish, Louisiana. The five patterns comprising the demonstration project enclose 19 productive acres and consist of thirty-eight producing, five injection and five observation wells. This r… more
Date: July 1, 1981
Creator: Hardin, G.
Partner: UNT Libraries Government Documents Department
open access

Electronic phenomena at high pressure

Description: High pressure research is undertaken either to investigate intrinsically high pressure phenomena or in order to get a better understanding of the effect of the chemical environment on properties or processes at one atmosphere. Studies of electronic properties which fall in each area are presented. Many molecules and complexes can assume in the excited state different molecular arrangements and intermolecular forces depending on the medium. Their luminescence emission is then very different in a… more
Date: January 1, 1981
Creator: Drickamer, H.G.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen