Sample records for loamy fine sand

  1. DIVISION S-5-PEDOLOGY Secondary Carbonates in Three Fine and Fine-loamy Alfisols in Michigan

    E-Print Network [OSTI]

    Schaetzl, Randall

    DIVISION S-5-PEDOLOGY Secondary Carbonates in Three Fine and Fine-loamy Alfisols in Michigan can be troublesome. We studied three Alfisol pedons in Michigan that contained secondary carbonates are young soils or those in drier climates. The Late Wisconsinan glaciated region of Michigan and nearby

  2. Compressive behavior of fine sand.

    SciTech Connect (OSTI)

    Martin, Bradley E. (Air Force Research Laboratory, Eglin, FL); Kabir, Md. E. (Purdue University, West Lafayette, IN); Song, Bo; Chen, Wayne (Purdue University, West Lafayette, IN)

    2010-04-01T23:59:59.000Z

    The compressive mechanical response of fine sand is experimentally investigated. The strain rate, initial density, stress state, and moisture level are systematically varied. A Kolsky bar was modified to obtain uniaxial and triaxial compressive response at high strain rates. A controlled loading pulse allows the specimen to acquire stress equilibrium and constant strain-rates. The results show that the compressive response of the fine sand is not sensitive to strain rate under the loading conditions in this study, but significantly dependent on the moisture content, initial density and lateral confinement. Partially saturated sand is more compliant than dry sand. Similar trends were reported in the quasi-static regime for experiments conducted at comparable specimen conditions. The sand becomes stiffer as initial density and/or confinement pressure increases. The sand particle size become smaller after hydrostatic pressure and further smaller after dynamic axial loading.

  3. Variation in grain shape and surface textures of fine guartz sands in the South Texas Eolian Sand Sheet

    E-Print Network [OSTI]

    Sims, Donald Ralph

    1984-01-01T23:59:59.000Z

    action on sand grains. Samples were taken from 4 transects subnormal to the prevailing wind direction at approximately 20 mile intervals. Two quartz-grain shape types were recognized in the fine sand fraction: one consisted of predominately angular... and 45 miles southward from Baffin Bay to Port Mansfield (Figure 1). The major factors affecting the formation and accumulation of the South Texas Eolian Sand Sheet are a prevailing wind from the east-southeast, a semi-arid climate and a source...

  4. Effect of sediment concentration on artificial well recharge in a fine sand aquifer 

    E-Print Network [OSTI]

    Rahman, Mohammed Ataur

    1968-01-01T23:59:59.000Z

    EFFECT OF SEDIMENT CONCENTRATION ON ARTIFICIAL WELL RECHARGE IN A FINE SAND AQUIFER A Thesis By MD. ATAUR RAHMAN Submitted to the Graduate College of the Texas ASM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE May 1968 Major Subject: Agricultural Engineering EFFECT OF SEDIMENT CONCENTRATION ON ARTIFICIAL WELL RECHARGE IN A FINE SAND AqUIFER A Thesis By MD. ATAUR RAHMAN Approved as to style and content by: (Chairman of ommitt ) ( a o...

  5. Loami, Illinois: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:Landowners and WindLightingLinthicum,LittleLivonia, New York:Lloyd, NewLoami,

  6. Physical, chemical and mineralogical properties of some soils of the Welder Wildlife Foundation

    E-Print Network [OSTI]

    Kovar, John Alvis

    1963-01-01T23:59:59.000Z

    . ed land Le+alta Niguel 75 TABLE OF CONTENTS (Cont. ) Nueces Tiooano Trlntty Villaoy Zavala 4 0 4 Page Page Physical properti. es of Medio loamy fine sand, Orelia fine sandy loam, and Victoria clay Chemical properties of Medio loamy fine... sand, Orelia f'ine sandy loamiand Victoria clay Exchangeable, extractable& and saturation extract, soluble cations of Medio loamy f'ine sand, Orelia fine sandy loam and Victoria clay Mineralogical properties of Medio loamy fine send~ Orelia fine...

  7. Rotational Cotton Response to Pursuit and Cadre Peter Dotray, Wayne Keeling, Trent Murphree, John Everitt, Associate Professor,

    E-Print Network [OSTI]

    Mukhtar, Saqib

    MATERIALS AND METHODS: Plot Size: 4 rows by 30 feet Soil Type: Brownfield loamy fine sand Planting Date

  8. Control of Russian thistle preplant in peanut Peter Dotray, Wayne Keeling, Todd Baughman, Marty McCormick, Associate

    E-Print Network [OSTI]

    Mukhtar, Saqib

    MATERIALS AND METHODS: Plot Size: 2 rows by 30 feet Soil Type: Brownfield loamy fine sand Application Date

  9. Characterization of the 3-D Properties of the Fine-Grained Turbidite 8 Sand Reservoir, Green Canyon 18, Gulf of Mexico

    E-Print Network [OSTI]

    Plantevin, Matthieu Francois

    2004-09-30T23:59:59.000Z

    -grained turbidity currents is composed of alternating sand and shale layers, whose extension is assumed to be large. They correspond to levee and overbank deposits that are usually associated to channel systems. The high porosity values, coming from unconsolidated...

  10. SAND REPORT SAND2002-xxxx

    E-Print Network [OSTI]

    Istrail, Sorin

    SAND REPORT SAND2002-xxxx Unlimited Release August 2002 Discrete Optimization Models for Protein by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

  11. Liquefaction characteristics of a fine sand

    E-Print Network [OSTI]

    Brandon, Donald Timothy

    1974-01-01T23:59:59.000Z

    of Test Apparatus Split&lug Mold and Tamper 29 33 13 15 16 17 18 Sample Compaction . Assembling Triaxial Chamber . Calibration of Triaxial Chamber . Calibration of Pressure Transducer Sample at the Beginning of Axial Loading Typical... TRIAXIAL TEST PROCEDURE Sam le Pre aration The triaxial test specimens were molded by using a hand tamper and compaction mold, both of' which differed with the type of material being used. A specially built mold was used for those samples made...

  12. Corrosion mechanisms of low level vitrified radioactive waste in a loamy soil M.I. Ojovan1

    E-Print Network [OSTI]

    Sheffield, University of

    Corrosion mechanisms of low level vitrified radioactive waste in a loamy soil M.I. Ojovan1 , W to 19 o C. Both ion-exchange and hydrolysis control the corrosion of this glass. Processing of field disposal facilities, which presumes an understanding of the main glass corrosion mechanisms. The corrosion

  13. New method for sand control and well stimulation in unconsolidated dirty sands

    SciTech Connect (OSTI)

    Aslesen, K.S.; Short, C.J.; Terwilliger, P.L.

    1981-01-01T23:59:59.000Z

    A new technique, the Solder Glass sand consolidation well completion method, has been developed which allows unlimited drawdown and improves productivity in wells completed in unconsolidated formations containing shales and clays. This technique eliminates the problems of sand production and fines migration by artificially consolidating a volume of reservoir sand near the wellbore. The consolidation is resistant to high temperature, chemical attack, and degradation resulting from high velocity fluid flow. Additionally, porosity and permeability in the consolidated volume of reservoir sand are improved as a result of irreversible dehydration of clays. 12 refs.

  14. The extraction of bitumen from western tar sands

    SciTech Connect (OSTI)

    Oblad, A.G.; Bunger, J.W.; Deo, M.D.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

    1990-07-01T23:59:59.000Z

    Topics discussed include: characterization of bitumen impregnated sandstone, water based tar sand separation technology, electrophoretic characterization of bitumen and fine mineral particles, bitumen and tar sand slurry viscosity, the hot water digestion-flotation process, electric field use on breaking water-in-oil emulsions, upgrading of bitumens and bitumen-derived liquids, solvent extraction.

  15. The extraction of bitumen from western tar sands. Annual report

    SciTech Connect (OSTI)

    Oblad, A.G.; Bunger, J.W.; Deo, M.D.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

    1990-07-01T23:59:59.000Z

    Topics discussed include: characterization of bitumen impregnated sandstone, water based tar sand separation technology, electrophoretic characterization of bitumen and fine mineral particles, bitumen and tar sand slurry viscosity, the hot water digestion-flotation process, electric field use on breaking water-in-oil emulsions, upgrading of bitumens and bitumen-derived liquids, solvent extraction.

  16. Tar sand

    SciTech Connect (OSTI)

    McLendon, T.R.; Bartke, T.C.

    1990-01-01T23:59:59.000Z

    Research on tar sand is briefly discussed. The research program supported by the US Department of Energy (DOE) includes a variety of surface extraction schemes. The University of Utah has process development units (PDU) employing fluidized bed, hot, water-assisted, and fluidized-bed/heat-pipe, coupled combustor technology. Considerable process variable test data have been gathered on these systems: (1) a rotary kiln unit has been built recently; (2) solvent extraction processing is being examined; and (3) an advanced hydrogenation upgrading scheme (hydropyrolysis) has been developed. The University of Arkansas, in collaboration with Diversified Petroleum, Inc., has been working on a fatty acid, solvent extraction process. Oleic acid is the solvent/surfactant. Solvent is recovered by adjusting processing fluid concentrations to separate without expensive operations. Western Research Institute has a PDU-scale scheme called the Recycle Oil Pyrolysis and Extraction (ROPE) process, which combines solvent (hot recycle bitumen) and pyrolytic extraction. 14 refs., 19 figs.

  17. The application of triaxial compression tests to the design of sand-asphalt paving mixtures 

    E-Print Network [OSTI]

    Ritter, Leo J

    1940-01-01T23:59:59.000Z

    of Changes in Sand. Orading upon the JLngle of Internal Friction III. Effect of the Initial Void Ratio upon ths ' ingle of Internal friction (Pine Sand. ) . . . . . . . Page 31 35 IV. Xffect oi Dust on the Angle of Internal Jriction in Sand Nixes... after Failure . . , 24 S. Nffsct of Changes in Sand. Grading on the Angle of Internal Friction . . . . . . '. . . . . . . . . . . . . . . . . 32 Relation between ths Angle of Internal Friction ank Initial Yolk Ratio (Fine Sank...

  18. SAND REPORT SAND2005-7937

    E-Print Network [OSTI]

    systems, but remain unlikely given the difficulty in operating large infrastructures even with modern Supervisory Control And Data Acquisition (SCADA) systems. The solution is management by distributed softwareSAND REPORT SAND2005-7937 Unlimited Release Printed January 2006 Agent-Based Control of Distributed

  19. SAND REPORT SAND2001-3515

    E-Print Network [OSTI]

    Hart, William E.

    SAND REPORT SAND2001-3515 Unlimited Release Printed April 2002 DAKOTA, A Multilevel Parallel Object by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

  20. SAND REPORT SAND2001-3796

    E-Print Network [OSTI]

    Hart, William E.

    SAND REPORT SAND2001-3796 Unlimited Release Printed April 2002 DAKOTA, A Multilevel Parallel Object by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

  1. SAND REPORT SAND2004-2871

    E-Print Network [OSTI]

    Bochev, Pavel

    SAND REPORT SAND2004-2871 Unlimited Release August 19, 2004 A Mathematical Framework for Multiscale Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; further dissemination unlimited. #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

  2. SAND REPORT SAND2003-0112

    E-Print Network [OSTI]

    Fuerschbach, Phillip

    SAND REPORT SAND2003-0112 Unlimited Release Printed January 2003 Cold War Context Statement Sandia of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

  3. SAND REPORT SAND2003-3410

    E-Print Network [OSTI]

    Ho, Cliff

    SAND REPORT SAND2003-3410 Unlimited Release Printed September 2003 Chemiresistor Microsensors for In-Situ Monitoring of Volatile Organic Compounds: Final LDRD Report Clifford K. Ho, Lucas K. Mc Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; further dissemination

  4. SAND REPORT SAND2001-3514

    E-Print Network [OSTI]

    Hart, William E.

    SAND REPORT SAND2001-3514 Unlimited Release Printed April 2002 DAKOTA, A Multilevel Parallel Object by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

  5. SAND REPORT SAND2003-2927

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SAND REPORT SAND2003-2927 Unlimited Release Printed August 2003 An Overview of Trilinos Michael Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; further dissemination unlimited. #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

  6. SAND REPORT SAND2004-1777

    E-Print Network [OSTI]

    Walker, Homer F.

    SAND REPORT SAND2004-1777 Unlimited Release Printed May 2004 Globalization techniques for Newton by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

  7. SAND REPORT SAND2003-0799

    E-Print Network [OSTI]

    Ho, Cliff

    SAND REPORT SAND2003-0799 Unlimited Release Printed March 2003 Field Demonstrations Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; further dissemination unlimited. #12;2 Issued by Sandia National Laboratories, operated for the United States Department of Energy

  8. SAND78-1563

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to current standards. SAND78-1563 VIND CHARACTERISTICS FOR FIELD TESTING OF WIND ENERGY CONVERSION SYSTEMS Robert E. Akins Environmental Research Division Sandia...

  9. SAND90-7111

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    M. Gregorek Department of Aeronautical and Astronautical Engineering The Ohio State University Columbus, OH 43220 SNLA LIBRARY II lllll 1 III SAND90-7111 Printed April 1991...

  10. Process for upgrading tar sand bitumen

    SciTech Connect (OSTI)

    Bartholic, D.B.; Reagan, W.J.

    1989-04-04T23:59:59.000Z

    A process is described for upgrading a charge of a tar sand bitumen concentrate containing mineral matter including fine particles which comprises contacting the charge in a riser in the presence of a low boiling organic solvent diluent with finely divided attrition-resistant particles of a hot fluidizable substantially catalytically inert solid which is substantially chemically inert to a solution of mineral acid. The contact of the charge with the particles is at high temperature and short contact time to vaporize the high hydrogen containing components of the bitumen, the period of time being less than that which induces substantial thermal cracking of the charge, at the end of the time separating the vaporizing product from the fluidizable particles. The fluidizable particles now bear a deposit of both combustible solid, adherent particles of fine particles of mineral matter and metals. The particles of inert solid are passed with deposit of combustibles and fine particles of mineral matter to a regenerator to oxidize the combustible portion of the deposits, removing at least a portion of deposit of mineral matter and metals by removing the inert solid from the regenerator and contacting removed inert solid with a hot mineral acid, and recirculating fluidizable solid depleted at least in part of deposited mineral matter to contact with incoming charge of tar sand bitumen concentrate and diluent.

  11. Nutritive value of eastern little bluestem and sweetgum as influenced by canopy condition and soil

    E-Print Network [OSTI]

    Howell, Joe Wynn

    1981-01-01T23:59:59.000Z

    ?'* ) ' ~ . ~d' ) ) d () (~L' 'd ) ~(f ) ) ' () d )y ) (QX) d ) d ( 70() canopy cover condition and four major soil series: Tenaha loamy fine sand, Cuthbert fine sandy loam, Woodtell very fine sandy loam, and Lacerda clay loam found in the National Forest..., Lufkin, Texas. . . . . . . . . . . . 17 Mean soil moisture (%), on a dry weight basis, of the top 30. 5 cm of a Tanaha loamy fine sand (l. f. s. ), Cuthbert fine sandy loam (f. s. l. ), Woodtell very fine sandy loam (v. f. s. l. ), and Lacerda clay...

  12. SAND20096226 Unlimited Release

    E-Print Network [OSTI]

    Plimpton, Steve

    SAND2009­6226 Unlimited Release Printed October 2009 Crossing the Mesoscale No-Man's Land via method and its variants are powerful tools for modeling materials at the mesoscale, meaning at length

  13. Petrographic, stratigraphic, and structural study of the Smackover gray sand (Jurassic) in north Louisiana

    SciTech Connect (OSTI)

    Miciotto, S.A.

    1980-01-01T23:59:59.000Z

    The gas-producing gray sand, a dark gray to black, very fine-grained sand, occurs as 3 sand tongues in the lower member of the Smackover Formation in the subsurface of Bossier, Webster, Claiborne, and Lincoln parishes, Louisiana. A Flaser-bedded silty shale facies indicates deposition on a mid-tidal flat environment. Smackover deposition during the Jurassic in the study area was located on the gently dipping slope between a broad coastal shelf to the north and a basin to the south. The gray sand was deposited over the Norphlet formation and Louann salt before flowage and swelling of the Louann salt began. Uplift and swelling of the Louann salt later in the Jurassic created growing anticlines; sediment slumped off the structural highs of the growing salt anticlines into basinal muds and silts. The Smackover gray sand continues to challenge exploration geologists because of the lateral pinch out of its sand tongues. 11 references.

  14. CONTRACTOR REPORT SAND927005

    E-Print Network [OSTI]

    CONTRACTOR REPORT SAND92­7005 Unlimited Release UC­261 Fatigue of Fiberglass Wind Turbine Blade WIND TURBINE BLADE MATERIALS J.F. Mandell, R.M. Reed, D.D. Samborsky Montana State University Bozeman in wind turbine blades has been explored. Coupon testing was carried out under constant amplitude tensile

  15. SAND932591 Unlimited Release

    E-Print Network [OSTI]

    McCurley, Kevin

    SAND93­2591 Unlimited Release First Printed October 1992 Revised October 29, 1993 Revised June 22. This new algorithm is called SHA­1. In this report we describe a portable and efficient implementation information used in their construction. \\Lambda This work was performed under U.S. Department of Energy

  16. The extraction of bitumen from western oil sands: Volume 1. Final report

    SciTech Connect (OSTI)

    Oblad, A.G.; Dahlstrom, D.A.; Deo, M.D.; Fletcher, J.V.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

    1997-11-26T23:59:59.000Z

    The program is composed of 20 projects, of which 17 are laboratory bench or laboratory pilot scale processes or computer process simulations that are performed in existing facilities on the University of Utah campus in north-east Salt Lake City. These tasks are: (1) coupled fluidized-bed bitumen recovery and coked sand combustion; (2) water-based recovery of bitumen; (3) oil sand pyrolysis in a continuous rotary kiln reactor; (4) oil sand pyrolysis in a large diameter fluidized bed reactor; (5) oil sand pyrolysis in a small diameter fluidized bed reactor; (6) combustion of spent sand in a transport reactor; (7) recovery and upgrading of oil sand bitumen using solvent extraction methods; (8) fixed-bed hydrotreating of Uinta Basin bitumens and bitumen-derived hydrocarbon liquids; (9) ebullieted bed hydrotreating of bitumen and bitumen derived liquids; (10) bitumen upgrading by hydropyrolysis; (11) evaluation of Utah`s major oil sand deposits for the production of asphalt, high-energy jet fuels and other specialty products; (12) characterization of the bitumens and reservoir rocks from the Uinta Basin oil sand deposits; (13) bitumen upgrading pilot plant recommendations; (14) liquid-solid separation and fine tailings thickening; (15) in-situ production of heavy oil from Uinta Basin oil sand deposits; (16) oil sand research and development group analytical facility; and (17) process economics. This volume contains an executive summary and reports for five of these projects. 137 figs., 49 tabs.

  17. The extraction of bitumen from western oil sands: Volume 2. Final report

    SciTech Connect (OSTI)

    Oblad, A.G.; Dahlstrom, D.A.; Deo, M.D.; Fletcher, J.V.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

    1997-11-26T23:59:59.000Z

    The program is composed of 20 projects, of which 17 are laboratory bench or laboratory pilot scale processes or computer process simulations that are performed in existing facilities on the University of Utah campus in north-east Salt Lake City. These tasks are: (1) coupled fluidized-bed bitumen recovery and coked sand combustion; (2) water-based recovery of bitumen; (3) oil sand pyrolysis in a continuous rotary kiln reactor; (4) oil sand pyrolysis in a large diameter fluidized bed reactor; (5) oil sand pyrolysis in a small diameter fluidized bed reactor; (6) combustion of spent sand in a transport reactor; (7) recovery and upgrading of oil sand bitumen using solvent extraction methods; (8) fixed-bed hydrotreating of Uinta Basin bitumens and bitumen-derived hydrocarbon liquids; (9) ebullieted bed hydrotreating of bitumen and bitumen derived liquids; (10) bitumen upgrading by hydropyrolysis; (11) evaluation of Utah`s major oil sand deposits for the production of asphalt, high-energy jet fuels and other specialty products; (12) characterization of the bitumens and reservoir rocks from the Uinta Basin oil sand deposits; (13) bitumen upgrading pilot plant recommendations; (14) liquid-solid separation and fine tailings thickening; (15) in-situ production of heavy oil from Uinta Basin oil sand deposits; (16) oil sand research and development group analytical facility; and (17) process economics. This volume contains reports on nine of these projects, references, and a bibliography. 351 refs., 192 figs., 65 tabs.

  18. Assessment of the KE Basin Sand Filter Inventory In Support of Hazard Categorization

    SciTech Connect (OSTI)

    Ross, Steven B.; Young, Jonathan

    2005-09-28T23:59:59.000Z

    In 1978, the water cleaning system for the KE Basin was upgraded by adding a sand filter and ion exchange columns. Basin water containing finely divided solids is collected by three surface skimmers and pumped to the sand filter. Filtrate from the sand filter is further treated in the ion exchange modules. The suspended solids accumulate in the sand until the pressure drop across the filter reaches established operating limits, at which time the sand filter is backwashed. The backwash is collected in the NLOP, where the solids are allowed to settle as sludge. Figure 2-1 shows a basic piping and instrumentation diagram depicting the relationship among the basin skimmers, sand filter, and NLOP. During the course of deactivation and decommissioning (D&D) of the K-Basins, the sand filter and its media will need to be dispositioned. The isotopic distribution of the sludge in the sand filter has been estimated in KE Basin Sand Filter Monolith DQO (KBC-24705). This document estimates the sand filter contribution to the KE hazard categorization using the data from the DQO.

  19. Investigation of guided waves propagation in pipe buried in sand

    SciTech Connect (OSTI)

    Leinov, Eli; Cawley, Peter; Lowe, Michael J.S. [NDE Group, Department of Mechanical Engineering, Imperial College London, London SW7 2AZ (United Kingdom)

    2014-02-18T23:59:59.000Z

    The inspection of pipelines by guided wave testing is a well-established method for the detection of corrosion defects in pipelines, and is currently used routinely in a variety of industries, e.g. petrochemical and energy. When the method is applied to pipes buried in soil, test ranges tend to be significantly compromised because of attenuation of the waves caused by energy radiating into the soil. Moreover, the variability of soil conditions dictates different attenuation characteristics, which in-turn results in different, unpredictable, test ranges. We investigate experimentally the propagation and attenuation characteristics of guided waves in pipes buried in fine sand using a well characterized full scale experimental apparatus. The apparatus consists of an 8 inch-diameter, 5.6-meters long steel pipe embedded over 3 meters of its length in a rectangular container filled with fine sand, and an air-bladder for the application of overburden pressure. Longitudinal and torsional guided waves are excited in the pipe and recorded using a transducer ring (Guided Ultrasonics Ltd). Acoustic properties of the sand are measured independently in-situ and used to make model predictions of wave behavior in the buried pipe. We present the methodology and the systematic measurements of the guided waves under a range of conditions, including loose and compacted sand. It is found that the application of overburden pressure modifies the compaction of the sand and increases the attenuation, and that the measurement of the acoustic properties of sand allows model prediction of the attenuation of guided waves in buried pipes with a high level of confidence.

  20. Recycling of PET bottles as fine aggregate in concrete

    SciTech Connect (OSTI)

    Frigione, Mariaenrica, E-mail: mariaenrica.frigione@unisalento.i [Department of Engineering for Innovation, University of Salento, Via per Monteroni, 73100 Lecce (Italy)

    2010-06-15T23:59:59.000Z

    An attempt to substitute in concrete the 5% by weight of fine aggregate (natural sand) with an equal weight of PET aggregates manufactured from the waste un-washed PET bottles (WPET), is presented. The WPET particles possessed a granulometry similar to that of the substituted sand. Specimens with different cement content and water/cement ratio were manufactured. Rheological characterization on fresh concrete and mechanical tests at the ages of 28 and 365 days were performed on the WPET/concretes as well as on reference concretes containing only natural fine aggregate in order to investigate the influence of the substitution of WPET to the fine aggregate in concrete. It was found that the WPET concretes display similar workability characteristics, compressive strength and splitting tensile strength slightly lower that the reference concrete and a moderately higher ductility.

  1. SAND88-1807

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection TechnicalResonantNovember11-3779SAND88-1807 * UC-261 Unlimited

  2. SAND92-1381

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection TechnicalResonantNovember11-3779SAND88-1807 * UC-261 Unlimited2-1

  3. SAND94-1057

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection TechnicalResonantNovember11-3779SAND88-1807 * UC-261 Unlimited2-1c.1

  4. SAND94-3039

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection TechnicalResonantNovember11-3779SAND88-1807 * UC-261

  5. On the critical salt concentrations for particle detachment in homogeneous sand and heterogeneous Hanford sediments

    E-Print Network [OSTI]

    Selker, John

    On the critical salt concentrations for particle detachment in homogeneous sand and heterogeneous June 2004 Abstract One of the mechanisms for sudden particle release is a decrease in groundwater salt concentration to below the critical salt concentration (CSC), where repulsion forces between fine particles

  6. Canadian Oil Sands: Canada An Emerging Energy

    E-Print Network [OSTI]

    Boisvert, Jeff

    (collectively "statements") with respect to: expectations regarding crude oil production, global energy demand1 Canadian Oil Sands: Canada ­ An Emerging Energy Superpower 0 University of Alberta February 8 Oil Sands Limited ("Canadian Oil Sands"), Syncrude Canada Ltd. ("Syncrude") and the oil sands industry

  7. Fine Grained Robotics

    E-Print Network [OSTI]

    Flynn, Anita M.

    Fine grained robotics is the idea of solving problems utilizing multitudes of very simple machines in place of one large complex entity. Organized in the proper way, simple machines and simple behaviors can lead to emergent ...

  8. Onsite Wastewater Treatment Systems: Sand Filters 

    E-Print Network [OSTI]

    Lesikar, Bruce J.

    2008-10-23T23:59:59.000Z

    Sand filters are beds of granular material, or sand, drained from underneath so that pretreated wastewater can be treated, collected and distributed to a land application system. This publication explains the treatment, design, operation...

  9. Compression and Creep of Venice Lagoon Sands

    E-Print Network [OSTI]

    Sanzeni, Alex

    A laboratory test program was conducted to evaluate the one-dimensional (1D) compression and creep properties of intact sand (and silty-sand) samples from a deep borehole at the Malamocco Inlet to the Venice Lagoon. The ...

  10. Onsite Wastewater Treatment Systems: Sand Filters

    E-Print Network [OSTI]

    Lesikar, Bruce J.

    2008-10-23T23:59:59.000Z

    Sand filters are beds of granular material, or sand, drained from underneath so that pretreated wastewater can be treated, collected and distributed to a land application system. This publication explains the treatment, design, operation...

  11. WASTEWATER TREATMENT OVER SAND COLUMNS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of the biological mechanisms responsible for wastewater treatment. The first part of the study, conducted on site93/0096 WASTEWATER TREATMENT OVER SAND COLUMNS TREATMENT YIELDS, LOCALISATION OF THE BIOMASS Domestic wastewater treatment by infiltration-percolation is a process that becomming common in France

  12. Treating tar sands formations with karsted zones

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Karanikas, John Michael (Houston, TX)

    2010-03-09T23:59:59.000Z

    Methods for treating a tar sands formation are described herein. The tar sands formation may have one or more karsted zones. Methods may include providing heat from one or more heaters to one or more karsted zones of the tar sands formation to mobilize fluids in the formation. At least some of the mobilized fluids may be produced from the formation.

  13. Availability of the Phosphoric Acid of Finely-Divided Rock Phosphate.

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1935-01-01T23:59:59.000Z

    -poor drainage, grayish brown clay, taken from 2 mi. E. of Lea by. 32650. Lake Charles Clay, 7 to 19 inches deep, Galveston County, d ayish black clay, from 2 mi. E. of League City. 33125. Moscow fine sandy loam, 3 to 7 inches, Polk County, a g imy fine sand... with numerous dark brown to black soft concretic ken 6 mi. W. of Corrigan, near the Groveton Road. 33126. Crockett Clay Loam, 0 to 7 inches, Polk County, surface ot cultivated) a dark brownish gray heavy fine sandy loam to li ~y loam, taken 2% mi. E. of Rock...

  14. Northwest Plume Groundwater System Green-sand Media Removal and Waste Packaging Paducah Gaseous Diffusion Plant, Paducah, Kentucky

    SciTech Connect (OSTI)

    Troutman, M.T.; Richards, C.J.; Tarantino, J.J. [CDM Federal Programs Corporation, 325 Kentucky Avenue, Kevil, KY 42053 (United States)

    2006-07-01T23:59:59.000Z

    The Northwest Plume Groundwater System (NWPGS) was temporarily shut down due to high differential pressures across the green-sand filters. Increased levels of suspended solids were introduced into the system from monitoring well development water, equipment decontamination water, and secondary containment water. These waters were treated for suspended solids through a groundwater pretreatment system but were suspected of causing the high differential pressures in the green-sand filters. Prior to the system being shutdown, the NWPGS had been experiencing increasingly shorter run times between filter backwashes indicating that the normal backwash cycle was not adequately removing the fines. This condition led to the removal and replacement of green-sand media from two filter vessels. Discussions include problems with the removal process, waste packaging specifications, requirements for the disposition of green-sand media, and lessons learned. (authors)

  15. X-ray computed-tomography observations of water flow through anisotropic methane hydrate-bearing sand

    SciTech Connect (OSTI)

    Seol, Yongkoo; Kneafsey, Timothy J.

    2009-06-01T23:59:59.000Z

    We used X-ray computed tomography (CT) to image and quantify the effect of a heterogeneous sand grain-size distribution on the formation and dissociation of methane hydrate, as well as the effect on water flow through the heterogeneous hydrate-bearing sand. A 28 cm long sand column was packed with several segments having vertical and horizontal layers with sands of different grain-size distributions. During the hydrate formation, water redistribution occurred. Observations of water flow through the hydrate-bearing sands showed that water was imbibed more readily into the fine sand, and that higher hydrate saturation increased water imbibition in the coarse sand due to increased capillary strength. Hydrate dissociation induced by depressurization resulted in different flow patterns with the different grain sizes and hydrate saturations, but the relationships between dissociation rates and the grain sizes could not be identified using the CT images. The formation, presence, and dissociation of hydrate in the pore space dramatically impact water saturation and flow in the system.

  16. The Apollo 15 Coarse Fines

    E-Print Network [OSTI]

    Rathbun, Julie A.

    I The Apollo 15 Coarse Fines (4-10 mm) Graham Ryder Sarah Bean Sherman Lunar and Planetary. TX 77058-4399 REFERENCE copy PLEASf 00 NOtr REbOIE #12;( The Apollo 15 Coarse Fines (4-10 mm) Graham. Johnson Space Center Houstqn, Texas JSC# 24035 #12;( THE APOLLO 15 COARSE FINES (4-10 mm) Introduction

  17. Sesame fertilization on lakeland sand

    E-Print Network [OSTI]

    Huerta, Ramon Moreno

    1961-01-01T23:59:59.000Z

    Ma/or Sub]ect: Agronomy SESAME FERTILIZATION ON LAKELAND SAND A Thesis RAMON HUERTA M. Approved as to style and content hy: Chairssn of Conunittee Head of partment January 1961 ACKNOWLEDGEMENTS The author wishes to express his sincere... difference was approached in the third. 8 Ye s 1. 856 + 0, 0509 X 16 POUEDS GF SULFUR PER ACRE Figure 4. Effect of sulfur on yield of sesame seed, winter of 1958-59. The data result1ng fram the sulfur effect during the winter of 1958-59 crop...

  18. SAND 2004-0281P

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved: 5-13-14 FEDERALAmerica High EnergyNationalSpring 2014 NationalFallSAND

  19. technology offer SandTES -High Temperature Sand Thermal Energy Storage

    E-Print Network [OSTI]

    Szmolyan, Peter

    technology offer SandTES - High Temperature Sand Thermal Energy Storage key words: High Temperature Energy Storage | Fluidized Bed | Sand | The invention consists of a fluidized bed with internal heat together with Dr. Eisl of ENRAG GmbH. Background Thermal energy storage (TES) systems are essential

  20. Hydroconversion of heavy oils. [Residue of tar sand bitumen distillation

    SciTech Connect (OSTI)

    Garg, D.

    1986-08-19T23:59:59.000Z

    A method is described for hydroconversion of feedstocks consisting essentially of at least one heavy hydrocarbon oil selected from the group consisting of residue of petroleum oil distillation and the residue of tar sand bitumen distillation to enhance the recovery of 350/sup 0/-650/sup 0/F boiling product fraction. The method comprises treating such feed stock with hydrogen at superatmospheric pressure and in the presence of finely divided active hydrogenation catalyst in consecutive reaction stages. An initial reaction stage is carried out at a temperature in the range of 780/sup 0/-825/sup 0/F, and a subsequent reaction stage is directly carried out after the initial reaction stage at a higher temperature in the range of 800/sup 0/F-860/sup 0/F, the temperature of the subsequent reaction stage being at least 20/sup 0/F higher than that of the initial reaction stage.

  1. Canadian Oil Sands: Canada's Energy Advantage

    E-Print Network [OSTI]

    Boisvert, Jeff

    crude oil production, global energy demand, the estimated reserves and resources at Syncrude, views that the world will need oil for decades to come, the expectations regarding oil sands productive capacityCanadian Oil Sands: Canada's Energy Advantage 0 #12;Forward looking information 1 In the interest

  2. Video Matching Peter Sand and Seth Teller

    E-Print Network [OSTI]

    Ouhyoung, Ming

    Video Matching Peter Sand and Seth Teller MIT Computer Science and Artificial Intelligence robotic motion control systems that would normally be used to ensure registra- tion of multiple video due to moving people, changes in lighting, and/or different exposure settings. e-mail: {sand

  3. SANDIA REPORT SAND2006-7744

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2006-7744 Unlimited Release Printed December 2006 Supersedes SAND2006-2161 Dated of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

  4. SANDIA REPORT SAND2000-2094

    E-Print Network [OSTI]

    SANDIA REPORT SAND2000-2094 Unlimited Release Printed August 2000 Application of the Smart, for the United States Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; distribution is unlimited. #12;August 2000 i SAND2000-2094 Unlimited Release Printed August 2000 Application

  5. SANDIA REPORT SAND99-2758

    E-Print Network [OSTI]

    SANDIA REPORT SAND99-2758 Unlimited Release Printed November 1999 Modeling Decomposition Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; further dissemination unlimited. #12;Inside front cover (disclaimer goes here) 2 #12;SAND99-2758 Unlimited Release Printed

  6. SANDIA REPORT SAND2012-1000

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    SANDIA REPORT SAND2012-1000 Unlimited Release Printed September 2012 Project Report: A Survey for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account · · UNITED STATES OF AM ERICA 2 #12;SAND2012-1000 Unlimited Release Printed September 2012 Project Report

  7. SANDIA REPORT SAND2014-17401

    E-Print Network [OSTI]

    SANDIA REPORT SAND2014-17401 Unlimited Release Printed September 2014 Wave Energy Converter (WEC States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work://www.ntis.gov/help/ordermethods.asp?loc=7-4-0#online #12;3 SAND2014-17401 Unlimited Release Printed September 2014 Wave Energy Converter

  8. SANDIA REPORT SAND2014-2864

    E-Print Network [OSTI]

    SANDIA REPORT SAND2014-2864 Unlimited Release Printed March 2014 User Guidelines and Best Practices to apply Dakota to a simulation problem. This SAND report consti Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE

  9. Shock response of dry sand.

    SciTech Connect (OSTI)

    Reinhart, William Dodd; Thornhill, Tom Finley, III (,; ); Chhabildas, Lalit C.. (..); Vogler, Tracy John; Brown, Justin L.

    2007-08-01T23:59:59.000Z

    The dynamic compaction of sand was investigated experimentally and computationally to stresses of 1.8 GPa. Experiments have been performed in the powder's partial compaction regime at impact velocities of approximately 0.25, 0.5, and 0.75 km/s. The experiments utilized multiple velocity interferometry probes on the rear surface of a stepped target for an accurate measurement of shock velocity, and an impedance matching technique was used to deduce the shock Hugoniot state. Wave profiles were further examined for estimates of reshock states. Experimental results were used to fit parameters to the P-Lambda model for porous materials. For simple 1-D simulations, the P-Lambda model seems to capture some of the physics behind the compaction process very well, typically predicting the Hugoniot state to within 3%.

  10. Continuous fine ash depressurization system

    DOE Patents [OSTI]

    Liu, Guohai (Birmingham, AL); Peng, Wan Wang (Birmingham, AL); Vimalchand, Pannalal (Birmingham, AL)

    2011-11-29T23:59:59.000Z

    A system for depressurizing and cooling a high pressure, high temperature fine solid particles stream having entrained gas therein. In one aspect, the system has an apparatus for cooling the high pressure, high temperature fine solid particles stream having entrained gas therein and a pressure letdown device for depressurization by separating the cooled fine solid particles from a portion of the fine solid particles stream having entrained gas therein, resulting in a lower temperature, lower pressure outlet of solid particles for disposal or handling by downstream equipment.

  11. Beer Bike Violations & Fines 2012 # Water/Balloon Violations Fine

    E-Print Network [OSTI]

    Beer Bike Violations & Fines 2012 # Water/Balloon Violations Fine 1 Consistent under the violating college) 2 Filling balloons with any substance but water $1,500 per offense 3 Hitting Beer Bike Beer Bike shirt $150 per person 12 Unauthorized Entry to Buildings $200 per offense 13 Non

  12. Manufacture of finely divided carbon

    SciTech Connect (OSTI)

    Walker, D.G.

    1980-01-22T23:59:59.000Z

    Finely divided carbon is manufactured by a process producing a gaseous stream containing carbon monoxide by reacting coal and air in a slagging ash gasifier, separating carbon monoxide from the gaseous mixture, and disproportionating the carbon monoxide to produce finely divided carbon and carbon dioxide, the latter of which is recycled to the gasifier.

  13. A finite element analysis of pneumatic-tire/sand interactions

    E-Print Network [OSTI]

    Grujicic, Mica

    A finite element analysis of pneumatic-tire/sand interactions during off-road vehicle travel M pneumatic tire and sand during off-road vehicle travel. Keywords Finite element analysis, Road vehicles and for other tire/sand combinations. Since the finite element analysis of the tire/sand interaction enables

  14. Nigeria to step up tar sands activity

    SciTech Connect (OSTI)

    Not Available

    1987-03-01T23:59:59.000Z

    The Nigerian government has directed its Ministry of Mines, Power and Steel to assume responsibility for the exploration and exploitation of tar sands deposits in Bendel, Ondo and Oyo States. The directive resulted from a survey report by the University of Ife's geological consultancy unit on bituminous sand deposits in the area. The statement said the government was satisfied that there were large commercial quantities of the sands in the three states. The survey had reported that Nigeria could recover between 31 and 40 billion barrels of heavy crude from the tar sand deposits. Exploration for hydrocarbons is currently going on in Anambra and Lake Chad basins as well as the Benue Trough. Apart from the Nigerian National Petroleum Corporation, Shell Petroleum and Gulf Oil have begun exploration activities in the Ondo area. Meanwhile, Nigeria has had to import heavy crude from Venezuela, for processing at the Kaduna refinery.

  15. Treating tar sands formations with dolomite

    DOE Patents [OSTI]

    Vinegar, Harold J.; Karanikas, John Michael

    2010-06-08T23:59:59.000Z

    Methods for treating a tar sands formation are described herein. The tar sands formation may include dolomite and hydrocarbons. Methods may include providing heat at less than the decomposition temperature of dolomite from one or more heaters to at least a portion of the formation. At least some of the hydrocarbon fluids are mobilized in the formation. At least some of the hydrocarbon fluids may be produced from the formation.

  16. The first occurrence of a toxodont (Mammalia, Notoungulata) in the United States

    E-Print Network [OSTI]

    Lundelius, Ernest; Bryant, Vaughn M.; Mandel, Rolfe; Thies, Kenneth J.; Thoms, Alston

    2013-01-08T23:59:59.000Z

    Formation at the toxodont locality mostly consist of stratified white (10YR 8/1, dry), very pale brown (10YR 7/2-7/3, dry), pale brown (10YR 6/3, dry), and brown (10YR 5/3, dry) loamy fine sand and very fine to coarse sand interbedded with very fine gravel... variation in the stratigraphy of the Deweyville between the two sections. Wood samples collected at depths of 1.0 and 3.5 m below the Deweyville surface yielded AMS radiocarbon ages of 17,080 ± 90 (ISGS-A1513) and 23,730 ± 100 (ISGS-A1183) yr B...

  17. Effect of sediment concentration on artificial well recharge in a fine sand aquifer

    E-Print Network [OSTI]

    Rahman, Mohammed Ataur

    1968-01-01T23:59:59.000Z

    of the aquifer and also the shape of the water profile in the model aquifer during the period of recharge. CHAPTER II REVIEW OF LITERATURE The flow of water through porous materials follows a law first discovered experimentally in 1856 by Henri Darcy (12), a... WITH TAP WATER AND SEDIMENT-LADEN WATER 74 76 77 Appendix AVERAGE CONDUCTIVITY IN ONE FOOT SECTIONS OF THE AQUIFER 84 LIST OF FIGURES Figure Page 3-1 Model Recharge Well with Accessori. es 14 3-2 Pie-shaped Model Well and Aquifer Sector Viewed...

  18. Provenance and glacial history of very fine quartz sand from the Weddell Sea, Antarctica

    E-Print Network [OSTI]

    Smith, Caryn Hallett

    1988-01-01T23:59:59.000Z

    in which they grew as well as the processes to which they have been exposed, either concurrent with or subsequent to their liberation from the parent rock (Moss, 1966; Mazzullo and Magenheimer, 1987). Accordingly quartz grains from a diversity of source.... Alternatively, Leg 113 drilling results suggest the origin of these central basin sediments are from West Antarctic sources, based on lithic grains thought to have been derived fran the Jurassic and Cretaceous sedimentary rocks of the southern Antarctic...

  19. Occurrence of gas hydrate in Oligocene Frio sand: Alaminos Canyon Block 818: Northern Gulf of Mexico

    SciTech Connect (OSTI)

    Boswell, R.D.; Shelander, D.; Lee, M.; Latham, T.; Collett, T.; Guerin, G.; Moridis, G.; Reagan, M.; Goldberg, D.

    2009-07-15T23:59:59.000Z

    A unique set of high-quality downhole shallow subsurface well log data combined with industry standard 3D seismic data from the Alaminos Canyon area has enabled the first detailed description of a concentrated gas hydrate accumulation within sand in the Gulf of Mexico. The gas hydrate occurs within very fine grained, immature volcaniclastic sands of the Oligocene Frio sand. Analysis of well data acquired from the Alaminos Canyon Block 818 No.1 ('Tigershark') well shows a total gas hydrate occurrence 13 m thick, with inferred gas hydrate saturation as high as 80% of sediment pore space. Average porosity in the reservoir is estimated from log data at approximately 42%. Permeability in the absence of gas hydrates, as revealed from the analysis of core samples retrieved from the well, ranges from 600 to 1500 millidarcies. The 3-D seismic data reveals a strong reflector consistent with significant increase in acoustic velocities that correlates with the top of the gas-hydrate-bearing sand. This reflector extends across an area of approximately 0.8 km{sup 2} and delineates the minimal probable extent of the gas hydrate accumulation. The base of the inferred gas-hydrate zone also correlates well with a very strong seismic reflector that indicates transition into units of significantly reduced acoustic velocity. Seismic inversion analyses indicate uniformly high gas-hydrate saturations throughout the region where the Frio sand exists within the gas hydrate stability zone. Numerical modeling of the potential production of natural gas from the interpreted accumulation indicates serious challenges for depressurization-based production in settings with strong potential pressure support from extensive underlying aquifers.

  20. Analytical mesoscale modeling of aeolian sand transport

    E-Print Network [OSTI]

    Marc Lämmel; Anne Meiwald; Klaus Kroy

    2014-05-03T23:59:59.000Z

    We analyze the mesoscale structure of aeolian sand transport, based on a recently developed two-species continuum model. The calculated sand flux and important average characteristics of the grain trajectories are found to be in remarkable agreement with field and wind-tunnel data. We conclude that the essential mesoscale physics is insensitive to unresolved details on smaller scales and well captured by the coarse-grained analytical model, thus providing a sound basis for precise and numerically efficient mesoscale modeling of aeolian structure formation.

  1. Creating fluid injectivity in tar sands formations

    DOE Patents [OSTI]

    Stegemeier, George Leo; Beer, Gary Lee; Zhang, Etuan

    2012-06-05T23:59:59.000Z

    Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters located in the portion. The heat may be controlled to increase the permeability of at least part of the portion to create an injection zone in the portion with an average permeability sufficient to allow injection of a fluid through the injection zone. A drive fluid and/or an oxidizing fluid may be provided into the injection zone. At least some hydrocarbons including mobilized hydrocarbons are produced from the portion.

  2. Skin friction for steel piles in sand

    E-Print Network [OSTI]

    Sulaiman, Ibrahim Hikmat

    1967-01-01T23:59:59.000Z

    MOVEMENT 4) For dry pile tests at initial void ratio of 0. 63, the assumption of a Coulomb type failure applies and the envelope is shown in Figure 23. The skin friction computed is the total friction caused by applied load. and. the static load caused... Sand 43 22. Skin Friction-Chamber Pressure Ratio Versus Pile Movement for Dense Dry Sand 44 23 ~ 24. Mohr Envelope for Skin Friction Measured. and Assumed. Pile Deformation 49 25 ~ Computed and Actual Load-Movement Curves for Test Pile 1 26...

  3. Creating fluid injectivity in tar sands formations

    DOE Patents [OSTI]

    Stegemeier, George Leo; Beer, Gary Lee; Zhang, Etuan

    2010-06-08T23:59:59.000Z

    Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters located in the portion. The heat may be controlled to increase the permeability of at least part of the portion to create an injection zone in the portion with an average permeability sufficient to allow injection of a fluid through the injection zone. A drive fluid and/or an oxidizing fluid may be provided into the injection zone. At least some hydrocarbons are produced from the portion.

  4. Sand Mountain Electric Cooperative- Residential Heat Pump Loan Program

    Broader source: Energy.gov [DOE]

    The Sand Mountain Electric Cooperative offers a heat pump loan program to eligible residential members. To qualify, members must have had power with Sand Mountain Electric Cooperative for at least...

  5. athabasca tar sands: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    tar sands resources are estimated at 60 to 80 unknown authors 2 Request received (from Norway, regarding e-mail titled "Grandparents Oppose Tar Sands"): Thanks. I have seen them in...

  6. Figure 1. Typical Slow Sand Filter Schematic Supernatant Water

    E-Print Network [OSTI]

    Figure 1. Typical Slow Sand Filter Schematic Headspace Supernatant Water Schmutzdecke Raw water Supernatant drain Filter drain & backfill Sand media Support gravel Drain tile Adjustable weir Overflow weir Vent Control valve Treated Water Effluent flow control structure Overflow Assessing Temperature

  7. Laboratory investigations of effective flow behavior in unsaturated heterogeneous sands

    E-Print Network [OSTI]

    Wildenschild, Dorthe

    Laboratory investigations of effective flow behavior in unsaturated heterogeneous sands D, Lyngby Abstract. Two-dimensional unsaturated flow and transport through heterogeneous sand was investigated under controlled laboratory conditions. The unsaturated hydraulic conductivity of five homogeneous

  8. University of Minnesota UMore Park Sand and Gravel Resources

    E-Print Network [OSTI]

    Netoff, Theoden

    for the extraction or mining of sand, gravel, stone, or other nonmetallic minerals, other than peat, which

  9. Wind-Blown Sand: Threshold of Motion

    E-Print Network [OSTI]

    Swann, Christy Michelle

    2014-11-12T23:59:59.000Z

    ....................................................................................... 43 13 Bedload trap designed for this study .................................................................................. 45 14 Schematic of internal adjustable chimney adjusted to the height of the surface... predicting the threshold for wind-blown sand in natural environments are rooted in the original wind tunnel work of Bagnold (1936). He introduced an empirically-calibrated model of the threshold using shear velocity, 𝑢?: a height independent variable...

  10. CONTRACTOR REPORT SAND97-3002

    E-Print Network [OSTI]

    presents a detailed analysis of the results from fatigue studies of wind turbine blade composite materials are evident in the range of materials currently used in many blades. A preliminary evaluation of knockdownsCONTRACTOR REPORT SAND97-3002 Unlimited Distribution UC-1210 DOE/MSU COMPOSITE MATERIAL FATIGUE

  11. SANDIA REPORT SAND2003-8550

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2003-8550 Unlimited Release Printed October 2003 Stationarity Results Company, for the United States Department of Energy's National Nuclear Security Administration under by Sandia National Laboratories, operated for the United States Department of Energy by Sandia Corporation

  12. SANDIA REPORT SAND2007-0905

    E-Print Network [OSTI]

    Bochev, Pavel

    SANDIA REPORT SAND2007-0905 Unlimited Release Printed February, 2007 Blended Atomistic Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04

  13. SANDIA REPORT SAND2014-17474

    E-Print Network [OSTI]

    SANDIA REPORT SAND2014-17474 Unlimited Release Printed September 2014 Investigation of Wave Energy for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Approved

  14. SANDIA REPORT SAND2006-5315

    E-Print Network [OSTI]

    Lewis, Robert Michael

    SANDIA REPORT SAND2006-5315 Unlimited Release Printed August 2006 A generating set direct search, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security. #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

  15. SANDIA REPORT SAND2007-6422

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2007-6422 Printed October 2007 Resolving the Sign Ambiguity in the Singular Value States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work Martin Company, for the United States Department of Energy's National Nuclear Security Administration

  16. SANDIA REPORT SAND2007-3257

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2007-3257 Unlimited Release Printed May 2007 Nonlinearly-Constrained Optimization for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

  17. SANDIA REPORT SAND2006-5315

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2006-5315 ct search ian algorithm for combination of nstraints . M. Lewis, and V,for the United States Departmentof Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL;Issued by Sandia National Laboratories, operated for the United States Department of Energy by Sandia

  18. SANDIA REPORT SAND2009-0857

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2009-0857 Unlimited Release Printed February 2009 An Optimization Approach for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

  19. SANDIA REPORT SAND2011-3119

    E-Print Network [OSTI]

    SANDIA REPORT SAND2011-3119 Unlimited Release Printed May 2011 Proton Exchange Membrane Fuel Cells Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

  20. SANDIA REPORT SAND2009-6670

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2009-6670 Unlimited Release Printed October 2009 Generalized Bad of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

  1. SANDIA REPORT SAND2013-0501

    E-Print Network [OSTI]

    SANDIA REPORT SAND2013-0501 Unlimited Release Printed February 2013 Vessel Cold-Ironing Using of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National

  2. SANDIA REPORT SAND2007-2706

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2007-2706 Unlimited Release Printed May 2007 Cross-Language Information Retrieval States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy

  3. SANDIA REPORT SAND2005-6864

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2005-6864 Unlimited Release Printed November 2005 Robust Large-scale Parallel for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

  4. SANDIA REPORT SAND2007-6702

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2007-6702 Unlimited Release Printed November 2007 Tensor Decompositions Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security. #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

  5. SANDIA REPORT SAND2008-6553

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2008-6553 Unlimited Release Printed October 2008 Asynchronous parallel hybrid States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy

  6. SANDIA REPORT SAND2006-4466

    E-Print Network [OSTI]

    Howle, Victoria E.

    SANDIA REPORT SAND2006-4466 Unlimited Release Printed July 2006 The Effect of Boundary Conditions Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04

  7. SANDIA REPORT SAND2014-16840

    E-Print Network [OSTI]

    SANDIA REPORT SAND2014-16840 Unlimited Release Printed August 2014 Investigation of Wave Energy for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Approved

  8. SANDIA REPORT SAND2004-8055

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2004-8055 Unlimited Release Printed February 2004 Revisiting Asynchronous of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

  9. SANDIA REPORT SAND2006-7592

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2006-7592 2006 Efficient MATLAB computations with sparse and factored tensorsWaUonunder A #12;Issued by Sandia National Laboratories, operated for the United StatesDepartment of Energy by Sandia Corporation. NOTICE:This report was prepared as an accountof work sponsoredby an agency

  10. SANDIA REPORT SAND2006-2161

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2006-2161 Unlimited Release Printed June 2006 Temporal Analysis of Social for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

  11. SANDIA REPORT SAND2006-4055

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2006-4055 Unlimited Release Printed October 2006 DAKOTA, A Multilevel Parallel Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04

  12. SANDIA REPORT SAND2004-3487

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2004-3487 Unlimited Release Printed July 2004 A Preliminary Report Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL

  13. SANDIA REPORT SAND2011-1877

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2011-1877 Unlimited Release Printed March 2011 Making Tensor Factorizations Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

  14. SANDIA REPORT SAND99-2953

    E-Print Network [OSTI]

    SANDIA REPORT SAND99-2953 Unlimited Release Printed November 1999 a Shaped-Charge Parallel by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract laboratories #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

  15. SANDIA REPORT SAND2008-5844

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2008-5844 Unlimited Release Printed September 2008 Concurrent Optimization for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

  16. SANDIA REPORT SAND2009-4494

    E-Print Network [OSTI]

    SANDIA REPORT SAND2009-4494 Unlimited Release Printed July 2009 Algebraic Connectivity and Graph of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

  17. SANDIA REPORT SAND2004-6391

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2004-6391 Unlimited Release Printed December 2004 APPSPACK 4.0: Asynchronous for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

  18. SANDIA REPORT SAND2011-4130

    E-Print Network [OSTI]

    SANDIA REPORT SAND2011-4130 Unlimited Release DAKOTA JAGUAR 2.1 User's Manual Brian M. Adams Ethan, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Approved

  19. SANDIA REPORT SAND2013-2789

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    SANDIA REPORT SAND2013-2789 Printed April 2013 New Wholesale Power Market Design Using Linked of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored Forward Markets A Study for the DOE Energy Storage Systems Program Leigh S. Tesfatsion, C´esar A. Silva

  20. SANDIA REPORT SAND2014-17460

    E-Print Network [OSTI]

    SANDIA REPORT SAND2014-17460 Unlimited Release Printed September 2014 Wave Energy Converter Effects for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Approved for public

  1. SANDIA REPORT SAND2004-6574

    E-Print Network [OSTI]

    Wilcox, Lucas C.

    SANDIA REPORT SAND2004-6574 Unlimited Release Printed January 4, 2005 Sensitivity Technologies Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04

  2. SANDIA REPORT SAND 2011-3446

    E-Print Network [OSTI]

    SANDIA REPORT SAND 2011- 3446 Unlimited Release Printed October 2011 Phoenix: Complex Adaptive for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. Approved for public

  3. SANDIA REPORT SAND2003-8516

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2003-8516 Unlimited Release Printed September 2003 Optimizing and Empirical Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL

  4. SANDIA REPORT SAND2004-4596

    E-Print Network [OSTI]

    Ho, Cliff

    SANDIA REPORT SAND2004-4596 Unlimited Release Printed September 2004 Sensors for Environmental Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL

  5. SANDIA REPORT SAND2006-6286

    E-Print Network [OSTI]

    SANDIA REPORT SAND2006-6286 Unlimited Release Printed October 2006 Solution-Verified Reliability, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security. #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

  6. SANDIA REPORT SAND2006-4621

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2006-4621 Unlimited Release Printed August 2006 Asynchronous parallel generating Company, for the United States Department of Energy's National Nuclear Security Administration under by Sandia National Laboratories, operated for the United States Department of Energy by Sandia Corporation

  7. SANDIA REPORT SAND2005-0336

    E-Print Network [OSTI]

    Ho, Cliff

    SANDIA REPORT SAND2005-0336 Unlimited Release Printed Month/Year FY04 Field Evaluations of an In Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL

  8. SANDIA REPORT SAND2001-0643

    E-Print Network [OSTI]

    Ho, Cliff

    SANDIA REPORT SAND2001-0643 Unlimited Release Printed March 2001 Review of Chemical Sensors for In of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored, for the United States Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; further

  9. SANDIA REPORT SAND98-2668

    E-Print Network [OSTI]

    SANDIA REPORT SAND98-2668 Unlimited Release Reprinted December 1998 G. Richard Eisler, Paul S 94550 for the United States Department of Energy under Contract DE-AC04-94AL85000 Approved for public for the United States Department of Energy by Sandia Cor- poration, a Lockheed Martin Company. NOTICE

  10. SANDIA REPORT SAND2009-5805

    E-Print Network [OSTI]

    SANDIA REPORT SAND2009-5805 Unlimited Release Printed September 2009 Efficient Algorithms for Mixed of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

  11. SANDIA REPORT SAND2010-1422

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2010-1422 Unlimited Release Printed March 2010 Poblano v1.0: A Matlab Toolbox States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy

  12. SAND93-2591 Unlimited Release

    E-Print Network [OSTI]

    McCurley, Kevin

    was performed under U.S. Department of Energy contract number DE-AC04-76DP00789. This report has been revisedSAND93-2591 Unlimited Release First Printed October 1992 Revised October 29, 1993 Revised June 22. In this report we describe a portable and efficient implementation of SHA-1 in the C language. Performance

  13. SANDIA REPORT SAND2007-1423

    E-Print Network [OSTI]

    Shashkov, Mikhail

    SANDIA REPORT SAND2007-1423 Unlimited Release Printed March 2007 A Multi-Scale Q1/P0 Approach for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. Approved

  14. SANDIA REPORT SAND2006-2079

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2006-2079 Unclassified Unlimited Release Printed April 2006 Multilinear algebra for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

  15. SANDIA REPORT SAND2014-16610

    E-Print Network [OSTI]

    Lehoucq, Rich

    SANDIA REPORT SAND2014-16610 Unlimited Release Printed August 2014 Installing the Anasazi Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

  16. SANDIA REPORT SAND2013-0339

    E-Print Network [OSTI]

    SANDIA REPORT SAND2013-0339 Unlimited Release Printed February 28, 2013 Proceedings States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy

  17. SANDIA REPORT SAND2006-2161

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2006-2161 Unlimited Release Printed April 2006 Temporal Analysis of Social for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

  18. SANDIA REPORT SAND2004-5187

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2004-5187 Unlimited Release Printed October 2004 MATLAB Tensor Classes for Fast of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

  19. SANDIA REPORT SAND2006-6135

    E-Print Network [OSTI]

    SANDIA REPORT SAND2006-6135 Unlimited Release Printed November 2006 Extension /ith Corre Hypercube National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by an agency of the United States Government. Neither

  20. SANDIA REPORT SAND2006-7592

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2006-7592 Unlimited Release Printed December 2006 Efficient MATLAB computations of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

  1. SANDIA REPORT SAND2014-17400

    E-Print Network [OSTI]

    SANDIA REPORT SAND2014-17400 Unlimited Release Printed September 2014 Investigation of Wave Energy Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL

  2. SANDIA REPORT SAND99-1941

    E-Print Network [OSTI]

    Fuerschbach, Phillip

    SANDIA REPORT SAND99-1941 Unlimited Release 828, ,-.-,,LS :xico 87185 and Livermore, California for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account, for the United States Department of Energy under Contract DE-AC04-94AL85000. Approved for public release: further

  3. SANDIA REPORT SAND2008-6109

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2008-6109 Unlimited Release Printed September 2008 Proceedings of the 2008 Sandia for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

  4. SANDIA REPORT SAND2005-4548

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2005-4548 Unlimited Release Printed July 2005 Higher-Order Web Link Analysis States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy

  5. SANDIA REPORT SAND2007-2761

    E-Print Network [OSTI]

    Howle, Victoria E.

    SANDIA REPORT SAND2007-2761 Unlimited Release Printed May 2007 A Taxonomy and Comparison of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

  6. SANDIA REPORT SAND2006-2081

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2006-2081 Unclassified Unlimited Release Printed April 2006 Multilinear operators Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security. #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

  7. SANDIA REPORT SAND2009-6764

    E-Print Network [OSTI]

    Kolda, Tamara G.

    SANDIA REPORT SAND2009-6764 Unlimited Release Printed October 2009 Scalable Tensor Factorizations States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy

  8. DRIVEN PIPE PILES IN DENSE SAND BYRON BYRNE

    E-Print Network [OSTI]

    Byrne, Byron

    DRIVEN PIPE PILES IN DENSE SAND BYRON BYRNE GEOMECHANICS GROUP THE UNIVERSITY OF WESTERN AUSTRALIA #12;Driven Pipe Piles in Dense Sand Byron Byrne Geomechanics Group The University of Western Australia #12;Driven Pipe Piles in Dense Sand Byron Byrne Geomechanics Group The University of Western Australia

  9. Well completion process for formations with unconsolidated sands

    DOE Patents [OSTI]

    Davies, David K. (Kingwood, TX); Mondragon, III, Julius J. (Redondo Beach, CA); Hara, Philip Scott (Monterey Park, CA)

    2003-04-29T23:59:59.000Z

    A method for consolidating sand around a well, involving injecting hot water or steam through well casing perforations in to create a cement-like area around the perforation of sufficient rigidity to prevent sand from flowing into and obstructing the well. The cement area has several wormholes that provide fluid passageways between the well and the formation, while still inhibiting sand inflow.

  10. Stratified chaos in a sand pile formation

    E-Print Network [OSTI]

    Ate Poortinga; Jan G. Wesseling; Coen J. Ritsema

    2014-03-04T23:59:59.000Z

    Sand pile formation is often used to describe stratified chaos in dynamic systems due to self-emergent and scale invariant behaviour. Cellular automata (Bak-Tang-Wiesenfeld model) are often used to describe chaotic behaviour, as simulating physical interactions between individual particles is computationally demanding. In this study, we use a state-of-the-art parallel implementation of the discrete element method on the graphical processing unit to simulate sand pile formation. Interactions between individual grains were simulated using a contact model in an Euler integration scheme. Results show non-linear self-emergent behaviour which is in good agreement with experimental results, theoretical work and self organized criticality (SOC) approaches. Moreover, it was found that the fully deterministic model, where the position and forces on every individual particle can be determined every iteration has a brown noise signal in the x and y direction, where the signal is the z direction is closer to a white noise spectrum.

  11. Guide to preparing SAND reports. Revised

    SciTech Connect (OSTI)

    Locke, T.K. [ed.

    1996-04-01T23:59:59.000Z

    This guide contains basic information needed to produce a SAND report. Its guidelines reflect DOE regulation and Sandia policy. The guide includes basic writing instructions in an annotated sample report; guidance for organization, format, and layout of reports produced by line organizations; and information about conference papers, journal articles, and brochures. The appendixes contain sections on Sandia`s preferred usage, equations, references, copyrights and permissions, and publishing terms.

  12. Aspects of tar sands development in Nigeria

    SciTech Connect (OSTI)

    Adewusi, V.A. (Dept. of Chemical Engineering, Obafemi Awolowo Univ., Ile-Ife (NG))

    1992-07-01T23:59:59.000Z

    Development of Nigerian massive reserves of crude bitumen and associated heavy oil is imminent in view of the impacts that the huge importation of these materials and their products have on the nation's economy, coupled with the depleting reserves of Nigeria and highlights the appropriate production technology options and their environmental implications. The utilization potentials of these resources are also enumerated, as well as the government's role in achieving accelerated, long-term tar sands development in the country.

  13. EA-1581: Sand Hills Wind Project, Wyoming

    Broader source: Energy.gov [DOE]

    The Bureau of Land Management, with DOE’s Western Area Power Administration as a cooperating agency, was preparing this EA to evaluate the environmental impacts of a proposal to construct, operate, and maintain the Sand Hills Wind Energy Facility on private and federal lands in Albany County, Wyoming. If the proposed action had been implemented, Western would have interconnected the proposed facility to an existing transmission line. This project has been canceled.

  14. Dense, finely, grained composite materials

    DOE Patents [OSTI]

    Dunmead, Stephen D. (Davis, CA); Holt, Joseph B. (San Jose, CA); Kingman, Donald D. (Danville, CA); Munir, Zuhair A. (Davis, CA)

    1990-01-01T23:59:59.000Z

    Dense, finely grained composite materials comprising one or more ceramic phase or phase and one or more metallic and/or intermetallic phase or phases are produced by combustion synthesis. Spherical ceramic grains are homogeneously dispersed within the matrix. Methods are provided, which include the step of applying mechanical pressure during or immediately after ignition, by which the microstructures in the resulting composites can be controllably selected.

  15. Policy Analysis of the Canadian Oil Sands Experience

    SciTech Connect (OSTI)

    None, None

    2013-09-01T23:59:59.000Z

    For those who support U.S. oil sands development, the Canadian oil sands industry is often identified as a model the U.S. might emulate, yielding financial and energy security benefits. For opponents of domestic oil sands development, the Canadian oil sands experience illustrates the risks that opponents of development believe should deter domestic policymakers from incenting U.S. oil sands development. This report does not seek to evaluate the particular underpinnings of either side of this policy argument, but rather attempts to delve into the question of whether the Canadian experience has relevance as a foundational model for U.S. oil sands development. More specifically, this report seeks to assess whether and how the Canadian oil sands experience might be predictive or instructive in the context of fashioning a framework for a U.S. oil sands industry. In evaluating the implications of these underpinnings for a prospective U.S. oil sands industry, this report concentrates on prospective development of the oil sands deposits found in Utah.

  16. The potential use of tar sand bitumen as paving asphalt

    SciTech Connect (OSTI)

    Petersen, J.C.

    1987-01-01T23:59:59.000Z

    The properties of several tar sand asphalts prepared in past studies by several different investigators were compared with each other and with the properties of petroleum asphalts. These results were reviewed and discussed with regard to the potential use of tar sand bitumen in pavement applications. The data show that tar sand bitumen has good potential for use in highway pavements that meet today's performance specifications. No deficiencies in the tar sand asphalts were found that would be expected to seriously affect performance. On the other hand, the data indicate that some tar sand asphalts may have superior aging characteristics, being relatively resistant to oxidative age hardening compared with typical petroleum asphalts. Asphalt-aggregate mixtures prepared using two tar sand asphalts also showed acceptable strength properties and excellent resistance to moisture-induced damage.

  17. Oil shale, tar sands, and related materials

    SciTech Connect (OSTI)

    Stauffer, H.C.

    1981-01-01T23:59:59.000Z

    This sixteen-chapter book focuses on the many problems and the new methodology associated with the commercialization of the oil shale and tar sand industry. Topics discussed include: an overview of the Department of Energy's oil shale R, D, and D program; computer simulation of explosive fracture of oil shale; fracturing of oil shale by treatment with liquid sulfur dioxide; chemistry of shale oil cracking; hydrogen sulfide evolution from Colorado oil shale; a possible mechanism of alkene/alkane production in oil shale retorting; oil shale retorting kinetics; kinetics of oil shale char gasification; a comparison of asphaltenes from naturally occurring shale bitumen and retorted shale oils: the influence of temperature on asphaltene structure; beneficiation of Green River oil shale by density methods; beneficiation of Green River oil shale pelletization; shell pellet heat exchange retorting: the SPHER energy-efficient process for retorting oil shale; retorted oil shale disposal research; an investigation into the potential economics of large-scale shale oil production; commercial scale refining of Paraho crude shale oil into military specification fuels; relation between fuel properties and chemical composition; chemical characterization/physical properties of US Navy shale-II fuels; relation between fuel properties and chemical composition: stability of oil shale-derived jet fuel; pyrolysis of shale oil residual fractions; synfuel stability: degradation mechanisms and actual findings; the chemistry of shale oil and its refined products; the reactivity of Cold Lake asphaltenes; influence of thermal processing on the properties of Cold Lake asphaltenes: the effect of distillation; thermal recovery of oil from tar sands by an energy-efficient process; and hydropyrolysis: the potential for primary upgrading of tar sand bitumen.

  18. alberta oil sands: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of maintenance example of strain softening material in the context of an underfoot environment for large mobile mining Joseph, Tim Grain 40 The effect of sand grain size...

  19. alberta oil sand: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of maintenance example of strain softening material in the context of an underfoot environment for large mobile mining Joseph, Tim Grain 40 The effect of sand grain size...

  20. auriferous alluvial sands: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    STATES OF AMERICA 12; SAND2002-xxxx Unlimited Release Printed August 2002 by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under...

  1. The new small-angle diffractometer SAND at IPNS

    SciTech Connect (OSTI)

    Crawford, R.K.; Thiyagarajan, P.; Epperson, J.E.; Trouw, F.; Kleb, R.; Wozniak, D.; Leach, D.

    1995-12-31T23:59:59.000Z

    A new small-angle neutron diffractometer SAND is undergoing commissioning at IPNS pulsed source. This paper provides details of the design and expected performance of this instrument.

  2. SANDIA REPORT SAND2014-3416 Unlimited Release

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    SAND2014-3416 Unlimited Release Printed April 2014 Safety, Codes and Standards for Hydrogen Installations: Hydrogen Fueling System Footprint Metric Development A.P. Harris,...

  3. Heating tar sands formations while controlling pressure

    DOE Patents [OSTI]

    Stegemeier, George Leo (Houston, TX) [Houston, TX; Beer, Gary Lee (Houston, TX) [Houston, TX; Zhang, Etuan (Houston, TX) [Houston, TX

    2010-01-12T23:59:59.000Z

    Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. A pressure in the majority of the section may be maintained below a fracture pressure of the formation. The pressure in the majority of the section may be reduced to a selected pressure after the average temperature reaches a temperature that is above 240.degree. C. and is at or below pyrolysis temperatures of hydrocarbons in the section. At least some hydrocarbon fluids may be produced from the formation.

  4. Heating tar sands formations to visbreaking temperatures

    DOE Patents [OSTI]

    Karanikas, John Michael (Houston, TX); Colmenares, Tulio Rafael (Houston, TX); Zhang, Etuan (Houston, TX); Marino, Marian (Houston, TX); Roes, Augustinus Wilhelmus Maria (Houston, TX); Ryan, Robert Charles (Houston, TX); Beer, Gary Lee (Houston, TX); Dombrowski, Robert James (Houston, TX); Jaiswal, Namit (Houston, TX)

    2009-12-22T23:59:59.000Z

    Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat may be controlled so that at least a majority of the section reaches an average temperature of between 200.degree. C. and 240.degree. C., which results in visbreaking of at least some hydrocarbons in the section. At least some visbroken hydrocarbon fluids may be produced from the formation.

  5. Investigation of sands subjected to dynamic loading 

    E-Print Network [OSTI]

    Reeves, Gary Neil

    1967-01-01T23:59:59.000Z

    INVESTIGATION OF SP&NDS SUBJECTED TO DTNAMIC LOADING A Tucsis By Gary N. Reeves Submitted to the Grad ate Coll Ee of the T xas AGM University in partial fulfillment of the requirements for the deEree of MASTER OF SCIPNCE AuBust 19G7 Major... Subject: Civil EnEineering LABORATORY INVESTIGATION OF SANDS SUBJECTED TO DYNAMIC LOADING A Thesis by Gary N. Reeves Approved as to style and content by: Chairman of Committee Head of Department Membe Me er August 1967 ACIINOWLEDGR&J. 'NTS I...

  6. Oil Sands Feedstocks | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in ManyDepartment of OrderSUBCOMMITTEEEnergy0Department ofSands

  7. Sand Mountain Electric Coop | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit with form HistoryRistma AG Jump to:EnergysourceRamon, California:Sand Mountain

  8. Sand Bluff Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f < RAPID‎ |Rippey Jump to:WY)Project JumpSanMiguel, California:Sand

  9. TESTING OF TMR SAND MANTIS FINAL REPORT

    SciTech Connect (OSTI)

    Krementz, D; William Daugherty, W

    2007-06-12T23:59:59.000Z

    Screening tests of Sand Mantis candidate materials selected for erosion resistance have been completed. The results of this testing identified that over a relatively short period of operation (<1 hour), measurable erosion will occur in each of the candidate zoom tube materials given equal operating exposure. Additionally, this testing has shown that erosion of the rubber discharge hose directly downstream of the vehicle could be expected to limit the service life of the discharge hose. On the basis of these test results, SRNL recommends the following; {lg_bullet} redesign of critical system components (e.g., zoom tube, discharge hose) should be conducted to improve system characteristics relative to erosion and capitalize on the results of this testing, {lg_bullet} continued efforts to deploy the Sand Mantis should include testing to better define and optimize operating parameters, and gain an understanding of system dynamics, {lg_bullet} discontinue wear testing with the selected materials pending redesign of critical system components (1st recommendation) and inclusion of other candidate materials. The final selection of additional candidate materials should be made following design changes, but might include a Stellite alloy or zirconia.

  10. Microstructural characterization of a Canadian oil sand

    E-Print Network [OSTI]

    Dinh, Hong Doan; Nauroy, Jean-François; Tang, Anh-Minh; Souhail, Youssef; 10.1139/T2012-072

    2013-01-01T23:59:59.000Z

    The microstructure of oil sand samples extracted at a depth of 75 m from the estuarine Middle McMurray formation (Alberta, Canada) has been investigated by using high resolution 3D X-Ray microtomography ($\\mu$CT) and Cryo Scanning Electron Microscopy (CryoSEM). $\\mu$CT images evidenced some dense areas composed of highly angular grains surrounded by fluids that are separated by larger pores full of gas. 3D Image analysis provided in dense areas porosity values compatible with in-situ log data and macroscopic laboratory determinations, showing that they are representative of intact states. $\\mu$CT hence provided some information on the morphology of the cracks and disturbance created by gas expansion. The CryoSEM technique, in which the sample is freeze fractured within the SEM chamber prior to observation, provided pictures in which the (frozen) bitumen clearly appears between the sand grains. No evidence of the existence of a thin connate water layer between grains and the bitumen, frequently mentioned in th...

  11. Solvent extraction of bitumen from tar sands

    SciTech Connect (OSTI)

    Hoon, A.Y.; Thomas, S. [Univ. of West Indies, St. Augustine (Trinidad and Tobago)

    1995-12-31T23:59:59.000Z

    This paper reports on the measurement of mass transfer rates for the extraction of bitumen from tar sands using organic solvents. The experiment was carried out in an agitated vessel using a six-blade turbine mixer on a laboratory scale. To facilitate the determination of absolute mass transfer coefficients, tar sands were specially prepared in the form of spherical particles so that mass transfer area can be computed. The variables investigated in the study included: (1) solvent type (kerosene, toluene, benzene), (2) stirrer speed, 25 rpm to 1000 rpm, and (3) particle diameter, 0.4 cm to 1.2 cm. The results indicated that solvency power varied markedly with the various solvents used and that high aromatic content promoted rapid dissolution when compared with paraffinic solvents. The mass transfer rates increased with increasing stirrer speed in accordance with the relationship: k {alpha} N{sup 0.56} where k is the mass transfer coefficient and N the stirrer speed. Increasing particle diameter also resulted in decreased mass transfer rates. The results were satisfactorily correlated in terms of a Frossling type equation, Sh {alpha} Re{sub p}{sup a}Sc{sup b}.

  12. Fluid escape from reservoirs: implications from cold seeps, fractures and injected sands

    E-Print Network [OSTI]

    Mazzini, Adriano

    Abstract Fluid escape from reservoirs: implications from cold seeps, fractures and injected sands fluids escape from hydrocarbon reservoirs through permeable networks of fractures, injected sands. Within fractures and injected sands, oxidation of chained hydrocarbons supplies bicarbonate to the co

  13. Biocalcification of Sand through Ureolysis Chiung-Wen Chou1

    E-Print Network [OSTI]

    Aydilek, Ahmet

    . A laboratory study was conducted to evaluate the changes in geomechanical properties of sand attributable that the bacterial cells effectively improved the geomechanical properties of the sand. Growing cells improved and have a tremendous effect on the composition, properties, and geomechanical behavior of earth materials

  14. ALUMINOSILICATE-COATED SILICA SAND FOR REACTIVE TRANSPORT EXPERIMENTS

    E-Print Network [OSTI]

    Flury, Markus

    ALUMINOSILICATE-COATED SILICA SAND FOR REACTIVE TRANSPORT EXPERIMENTS By JORGE ANTONIO JEREZ transport experiments; Dr. Barbara Williams and Jason Shira from University of Idaho for providing access-COATED SILICA SAND FOR REACTIVE TRANSPORT EXPERIMENTS Abstract by Jorge Antonio Jerez Briones, Ph.D. Washington

  15. BENEFICIAL UTILIZATION OF USED FOUNDRY SANDS AS CONSTRUCTION MATERIALS

    E-Print Network [OSTI]

    Wisconsin-Milwaukee, University of

    and state environmental agencies began to pay increasing attention to industrial pollution, safety and wasteBENEFICIAL UTILIZATION OF USED FOUNDRY SANDS AS CONSTRUCTION MATERIALS By Tarun R. Naik Director - 6696 Fax: (414) 229 - 6958 #12;-2- Beneficial Utilization of Used Foundry Sands as Construction

  16. Mechanic Waves in Sand, 3d Simulations O Mouraillea,

    E-Print Network [OSTI]

    Luding, Stefan

    Mechanic Waves in Sand, 3d Simulations O Mouraillea, , W A Mulderb & S Ludinga a Particle propagation. The propagation of rotational energy in itself is studied as well. The control on the inter in granular materials. #12;Wave propagation, MD-Simulations 2 1. Introduction Sand, like other granular

  17. Multispecies Reactive Tracer Test in a Sand and

    E-Print Network [OSTI]

    Multispecies Reactive Tracer Test in a Sand and Gravel Aquifer, Cape Cod, Massachusetts United;Multispecies Reactive Tracer Test in a Sand and Gravel Aquifer, Cape Cod, Massachusetts Part 2 Transport- effectiveness for prevention and control of pollution to air, land, water, and subsurface resources; protection

  18. SHORT COMMUNICATION First Collection Records of Phlebotomine Sand Flies (Diptera

    E-Print Network [OSTI]

    SHORT COMMUNICATION First Collection Records of Phlebotomine Sand Flies (Diptera: Psychodidae) From (2011); DOI: 10.1603/ME10170 ABSTRACT The phlebotomine sand ßies Lutzomyia (Psathyromyia) shannoni (Dyar species were collected from ultraviolet CO2-baited Centers for Disease Control light traps during a state

  19. Household scale slow sand filtration in the Dominican Republic

    E-Print Network [OSTI]

    Donison, Kori S. (Kori Shay), 1981-

    2004-01-01T23:59:59.000Z

    Slow sand filtration is a method of water treatment that has been used for hundreds of years. In the past two decades, there has been resurgence in interest in slow sand filtration, particularly as a low-cost, household-scale ...

  20. Completion methods in thick, multilayered tight gas sands

    E-Print Network [OSTI]

    Ogueri, Obinna Stavely

    2009-05-15T23:59:59.000Z

    Tight gas sands, coal-bed methane, and gas shales are commonly called unconventional reservoirs. Tight gas sands (TGS) are often described as formations with an expected average permeability of 0.1mD or less. Gas production rates from TGS reservoirs...

  1. Completion methods in thick, multilayered tight gas sands

    E-Print Network [OSTI]

    Ogueri, Obinna Stavely

    2008-10-10T23:59:59.000Z

    Tight gas sands, coal-bed methane, and gas shales are commonly called unconventional reservoirs. Tight gas sands (TGS) are often described as formations with an expected average permeability of 0.1mD or less. Gas production rates from TGS reservoirs...

  2. www.nasa.gov WHITE SANDS MISSILE RANGE ACCESS CAPABILITIES

    E-Print Network [OSTI]

    and missile launch, tracking, and recovery · Nuclear effects testing · High-speed sled track · Directed energy weapons testing · Climatic and dynamic environments testing · Atmospheric research · Electronicwww.nasa.gov WHITE SANDS MISSILE RANGE ACCESS CAPABILITIES SUMMARY White Sands Test Facility (WSTF

  3. Method and apparatus for hydrocarbon recovery from tar sands

    DOE Patents [OSTI]

    Westhoff, J.D.; Harak, A.E.

    1988-05-04T23:59:59.000Z

    A method and apparatus for utilizing tar sands having a broad range of bitumen content is disclosed. More particularly, tar sands are pyrolyzed in a cyclone retort with high temperature gases recycled from the cyclone retort to produce oil and hydrocarbon products. The spent tar sands are then burned at 2000/degree/F in a burner to remove residual char and produce a solid waste that is easily disposable. The process and apparatus have the advantages of being able to utilize tar sands having a broad range of bitumen content and the advantage of producing product gases that are free from combustion gases and thereby have a higher heating value. Another important advantage is rapid pyrolysis of the tar sands in the cyclone so as to effectively utilize smaller sized reactor vessels for reducing capitol and operating costs. 1 fig., 1 tab.

  4. Method and apparatus for hydrocarbon recovery from tar sands

    DOE Patents [OSTI]

    Westhoff, James D. (Laramie, WY); Harak, Arnold E. (Laramie, WY)

    1989-01-01T23:59:59.000Z

    A method and apparatus for utilizing tar sands having a broad range of bitumen content is disclosed. More particularly, tar sands are pyrolyzed in a cyclone retort with high temperature gases recycled from the cyclone retort to produce oil and hydrocarbon products. The spent tar sands are then burned at 2000.degree. F. in a burner to remove residual char and produce a solid waste that is easily disposable. The process and apparatus have the advantages of being able to utilize tar sands having a broad range of bitumen content and the advantage of producing product gases that are free from combustion gases and thereby have a higher heating value. Another important advantage is rapid pyrolysis of the tar sands in the cyclone so as to effectively utilize smaller sized reactor vessels for reducing capitol and operating costs.

  5. Heats of dissolution of tar sand bitumen in various solvents

    SciTech Connect (OSTI)

    Ensley, E.K.; Scott, M.

    1988-05-01T23:59:59.000Z

    The dissolution of tar sand bitumen from a tar sand matrix was examined using three solvents: (1) dichloromethane, a polar-polarizable solvent; (2) toluene, a nonpolar-polarizable solvent; and (3) hexane, a nonpolar-nonpolarizable solvent. The dichloromethane had the highest dissolution energy, followed by toluene, with hexane having the lowest dissolution energy. These data were combined with heat of dissolution of recovered bitumen and heat of wetting of spent sand to calculate the bonding energy between bitumen and the mineral matrix. The interfacial bonding energy between tar sand bitumen and the mineral matrix was found to be in the region of 0 to 0.09 cal/g of bitumen, which is very small. This conclusion may find application in recovery of energy or bitumen from bitumen-wet tar sand deposits. 9 refs., 2 tabs.

  6. Roadmap: Fine Arts Interdisciplinary Painting/Sculpture Bachelor of Fine Arts

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Fine Arts ­ Interdisciplinary Painting/Sculpture ­ Bachelor of Fine Arts [CA This roadmap is a recommended semester-by-semester plan of study for this major. However, courses on page 2 Kent Core Requirement 3 #12;Roadmap: Fine Arts ­ Interdisciplinary Painting/Sculpture ­ Bachelor

  7. Roadmap: Fine Arts Interdisciplinary Drawing/Sculpture Bachelor of Fine Arts

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Fine Arts ­ Interdisciplinary Drawing/Sculpture ­ Bachelor of Fine Arts [CA This roadmap is a recommended semester-by-semester plan of study for this major. However, courses on page 2 Kent Core Requirement 3 #12;Roadmap: Fine Arts ­ Interdisciplinary Drawing/Sculpture ­ Bachelor

  8. Acoustic sand detector for fluid flowstreams

    DOE Patents [OSTI]

    Beattie, Alan G. (Corrales, NM); Bohon, W. Mark (Frisco, TX)

    1993-01-01T23:59:59.000Z

    The particle volume and particle mass production rate of particulate solids entrained in fluid flowstreams such as formation sand or fracture proppant entrained in oil and gas production flowstreams is determined by a system having a metal probe interposed in a flow conduit for transmitting acoustic emissions created by particles impacting the probe to a sensor and signal processing circuit which produces discrete signals related to the impact of each of the particles striking the probe. The volume or mass flow rate of particulates is determined from making an initial particle size distribution and particle energy distribution and comparing the initial energy distribution and/or the initial size distribution with values related to the impact energies of a predetermined number of recorded impacts. The comparison is also used to recalibrate the system to compensate for changes in flow velocity.

  9. Advanced Fine Particulate Characterization Methods

    SciTech Connect (OSTI)

    Steven Benson; Lingbu Kong; Alexander Azenkeng; Jason Laumb; Robert Jensen; Edwin Olson; Jill MacKenzie; A.M. Rokanuzzaman

    2007-01-31T23:59:59.000Z

    The characterization and control of emissions from combustion sources are of significant importance in improving local and regional air quality. Such emissions include fine particulate matter, organic carbon compounds, and NO{sub x} and SO{sub 2} gases, along with mercury and other toxic metals. This project involved four activities including Further Development of Analytical Techniques for PM{sub 10} and PM{sub 2.5} Characterization and Source Apportionment and Management, Organic Carbonaceous Particulate and Metal Speciation for Source Apportionment Studies, Quantum Modeling, and High-Potassium Carbon Production with Biomass-Coal Blending. The key accomplishments included the development of improved automated methods to characterize the inorganic and organic components particulate matter. The methods involved the use of scanning electron microscopy and x-ray microanalysis for the inorganic fraction and a combination of extractive methods combined with near-edge x-ray absorption fine structure to characterize the organic fraction. These methods have direction application for source apportionment studies of PM because they provide detailed inorganic analysis along with total organic and elemental carbon (OC/EC) quantification. Quantum modeling using density functional theory (DFT) calculations was used to further elucidate a recently developed mechanistic model for mercury speciation in coal combustion systems and interactions on activated carbon. Reaction energies, enthalpies, free energies and binding energies of Hg species to the prototype molecules were derived from the data obtained in these calculations. Bimolecular rate constants for the various elementary steps in the mechanism have been estimated using the hard-sphere collision theory approximation, and the results seem to indicate that extremely fast kinetics could be involved in these surface reactions. Activated carbon was produced from a blend of lignite coal from the Center Mine in North Dakota and sunflower hulls for the biomass material to be carbonized. The ability to remove mercury from a bituminous coal's derived flue gas was low. Removals of only 15% were attained while injecting 6 lb/Macf of activated carbon upstream of an electrostatic precipitator. Poisoning of sites on the activated carbon by SO{sub 2} and SO{sub 3} contributed to the poor mercury capture performance.

  10. SOUTHERN FINE PARTICULATE MONITORING PROJECT

    SciTech Connect (OSTI)

    Unknown

    2002-04-01T23:59:59.000Z

    This quarterly report presents results and analysis of continuous onsite ambient fine particulate data at the North Birmingham sampling site during the January-March, 2002 study period. The continuous data include PM{sub 2.5} mass concentrations measured by TEOM, particle sulfate using the R&P 8400S monitor, particle size distributions measured by SMPS and APS monitors, and PM{sub 2.5} light scattering extinction coefficient as measured by nephelometer. Some instrumental issues were noted with the upgrade of the APS model 3320 are described in the report, as well as preliminary performance indications for the upgraded instrument. During the quarter preliminary data analysis and modeling studies were conducted to test the potential of the North Birmingham site data for source attribution analyses. Our initial assessment has continued to be optimistic in this regard due to the location of the site relative to several important classes of local and midrange emission sources. We anticipate that these analyses will provide good separations of the effects of major source classes and spatial source clusters, and will provide useful information relevant to PM{sub 2.5} implementation strategies.

  11. Silvicultural practices and tree squirrels (Sciurus L.) in East Texas

    E-Print Network [OSTI]

    Hedrick, Larry Dean

    1973-01-01T23:59:59.000Z

    happened to occur near an upland stream or valley, or in the flatwoods, it was given a high rating. Those plots supporting stands of shortleaf pine mixed with southern red oak and sweetgum were given a low rating as to vegetation. A medium rating... Topography Low fine sands shortleaf-sweetgum hill top Medium loamy sands loblolly-white oak hill side High sandy loams loblolly-water oak valley or flatwoods then summed to provide an index for each plot. The maximum index figure is 9 and the smallest 3...

  12. The Active Potash of the Soil and Its Relation to Pot Experiments.

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1912-01-01T23:59:59.000Z

    --------------------- Norfolk sand --------------------- Susquehana fine sandy loam------ Norfolk fine sand -----------------. Lufkin sand, subsoil ------------, Lufkin sand, subsoil ------------- Lufkin sand, subsoil ------------- Lufkin sand, subsoil... sand ----------------- Norfolk fine sand --,-------------- Norfolk fine sand --------- - ------- Norfclk Ane sandy loam ---------- Norfolk fine sandy loam --------- Norfolk fine sandy loam ---------- Lufkin flne sand ------------------ Lufkin...

  13. Recovery of bitumen from oil sand by steam with chemicals

    SciTech Connect (OSTI)

    Yamazaki, T.

    1988-01-01T23:59:59.000Z

    Recently, oil sand bitumen has become the center of attention as a possible oil energy substitute for the future. Until now, the development of oil sand has been performed by surface miing and conventional steam injection, these methods are limited in respect to resource recovery. A more effective method needs to be developed utilizing in situ recovery. In this study, a new attempt is made for the purpose of enhancing the recovery of bitumen from oil sand by adopting the method of injecting high pressure steam and chemicals such as solvents, surfactants, and others.

  14. aeolian sand transport: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    that trigger dust storms, and the lifting of dust by dust devils and other small-scale vortices. We also discuss the physics of wind-blown sand and dune formation on Venus...

  15. aeolian sands underlain: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    that trigger dust storms, and the lifting of dust by dust devils and other small-scale vortices. We also discuss the physics of wind-blown sand and dune formation on Venus...

  16. asian sand dust: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    that trigger dust storms, and the lifting of dust by dust devils and other small-scale vortices. We also discuss the physics of wind-blown sand and dune formation on Venus...

  17. Mineral Dissolution and Secondary Precipitation on Quartz Sand...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sand in Simulated Hanford Tank Solutions Affecting Subsurface Porosity."Journal of Hydrology 472-473:159-168. doi:10.1016j.jhydrol.2012.09.021 Authors: G Wang W Um...

  18. Kellogg and Russ Forest projects. 2002 Project sand highlights

    E-Print Network [OSTI]

    Kellogg and Russ Forest projects. 2002 Project sand highlights MacCready Reserve a new property of insects Galeerucella calmariensis,and G.pusilla to control purple loosestrife on May 13. #12;New Project

  19. Tree Harvest in an Experimental Sand Ecosystem: Plant Effects on

    E-Print Network [OSTI]

    Vermont, University of

    Tree Harvest in an Experimental Sand Ecosystem: Plant Effects on Nutrient Dynamics and Solute control during this interval. During the 1st year after harvest, K concentrations tripled in shallow soil

  20. Response of Oil Sands Derived Fuels in Diesel HCCI Operation

    Broader source: Energy.gov (indexed) [DOE]

    UT-Battelle for the Department of Energy 2007 DOE DEER Conference Oil sands fuels and refinery intermediates * Provided by Shell Canada (now Royal Dutch Shell) * 17 fuels and...

  1. The potential use of tar sand bitumen as paving asphalt

    SciTech Connect (OSTI)

    Petersen, J.C.

    1988-01-01T23:59:59.000Z

    In this paper several research reports describing the preparation of potential paving asphalts from tar sand bitumen are reviewed and the results of the studies compared. The tar sand asphalts described in the studies were prepared from 1) hot water-recovered bitumen from deposits near San Luis Obispo, California (Edna deposits), and deposits near Vernal and Sunnyside, Utah; and 2) bitumen recovered from the Northwest Asphalt Ridge deposits near Vernal, Utah, by both in situ steamflood and in situ combustion recovery processes. Important properties of the tar sand asphalts compare favorably with those of specification petroleum asphalts. Laboratory data suggest that some tar sand asphalts may have superior aging characteristics and produce more water-resistant paving mixtures than typical petroleum asphalts.

  2. Study of properties of sand asphalt using a torsional rheometer 

    E-Print Network [OSTI]

    Kasula, Lavan Kumar Reddy

    2004-11-15T23:59:59.000Z

    The modeling of Sand Asphalt and experiments to measure their rheological properties are of vital concern to many industrial processes especially highway and roadway pavement construction industry. A variety of hot mix ...

  3. Bathymetric evolution of sand bed forms under partially standing waves

    E-Print Network [OSTI]

    Landry, Blake Jude

    2004-01-01T23:59:59.000Z

    Experiments were conducted in a large wave flume where the interaction between water waves and a movable sand bed were investigated. Monochromatic and poly- chromatic waves of specified amplitudes and period were generated ...

  4. RESEARCH ARTICLE Drag reduction using superhydrophobic sanded Teflon surfaces

    E-Print Network [OSTI]

    Rothstein, Jonathan

    RESEARCH ARTICLE Drag reduction using superhydrophobic sanded Teflon surfaces Dong Song · Robert J- phobic surfaces with random surface microstructure. These superhydrophobic surfaces were fabricated was found to produce the largest pressure drop reduction. 1 Introduction Superhydrophobic surfaces can

  5. An evaluation of the potential end uses of a Utah tar sand bitumen. [Tar sand distillate

    SciTech Connect (OSTI)

    Thomas, K.P.; Harnsberger, P.M.; Guffey, F.D.

    1986-09-01T23:59:59.000Z

    To date the commercial application of tar sand deposits in the United States has been limited to their use as paving materials for county roads, parking lots, and driveways because the material, as obtained from the quarries, does not meet federal highway specifications. The bitumen in these deposits has also been the subject of upgrading and refining studies to produce transportation fuels, but the results have not been encouraging from an economic standpoint. The conversion of tar sand bitumen to transportation fuels cannot compete with crude oil refining. The purposes of this study were two-fold. The first was to produce vacuum distillation residues and determine if their properties met ASTM asphalt specifications. The second was to determine if the distillates could serve as potential feedstocks for the production of aviation turbine fuels. The bitumen used for this study was the oil produced during an in situ steamflood project at the Northwest Asphalt Ridge (Utah) tar sand deposit. Two distillation residues were produced, one at +316/sup 0/C and one at +399/sup 0/C. However, only the lower boiling residue met ASTM specifications, in this case as an AC-30 asphalt. The original oil sample met specifications as an AC-5 asphalt. These residue samples showed some unique properties in the area of aging; however, these properties need to be investigated further to determine the implications. It was also suggested that the low aging indexes and high flow properties of the asphalts may be beneficial for pavements that require good low-temperature performance. Two distillate samples were produced, one at IBP-316/sup 0/C and one at IBP-399/sup 0/C. The chemical and physical properties of these samples were determined, and it was concluded that both samples appear to be potential feedstocks for the production of aviation turbine fuels. However, hydrogenation studies need to be conducted and the properties of the finished fuels determined to verify the prediction. 14 refs., 12 tabs.

  6. Acoustic detection of Immiscible Liquids in Sand

    SciTech Connect (OSTI)

    Geller, Jil T.; Kowalsky, Michael B.; Seifert, Patricia K.; Nihei, Kurt T.

    1999-03-01T23:59:59.000Z

    Laboratory cross-well P-wave transmission at 90 kHz was measured in a 61 cm diameter by 76 cm tall water-saturated sand pack, before and after introducing a non-aqueous phase organic liquid (NAPL) (n-dodecane). In one experiment NAPL was introduced to form a lens trapped by a low permeability layer; a second experiment considered NAPL residual trapped behind the front of flowing NAPL. The NAPL caused significant changes in the travel time and amplitude of first arrivals, as well as the generation of diffracted waves arriving after the direct wave. The spatial variations in NAPL saturation obtained from excavation at the end of the experiment correlated well with the observed variations in the P-wave amplitudes and travel times. NAPL residual saturation changes from NAPL flow channels of 3 to 4% were detectable and the 40 to 80% NAPL saturation in the NAPL lens was clearly visible at acoustic frequencies. The results of these experiments demonstrate that small NAPL saturations may be more easily detected with amplitude rather than travel time data, but that the relationships between the amplitude changes and NAPL saturation maybe more complex than those for velocity.

  7. Process for upgrading tar sand bitumen

    SciTech Connect (OSTI)

    Bartholic, D.B.; Reagan, W.J.

    1989-02-14T23:59:59.000Z

    A process is described for upgrading a charge of a tar sand bitumen concentrate containing metal impurities, colloidal calcium-containing clay and water. It consists of contacting the charge in a riser contacting zone in the presence of a low boiling organic solvent with hot fluidizable attrition-resistant substantially catalytically-inert microspheres, which are 20 to 150 microns in diameter and are composed of previously calcined kaolin clay. The contact takes place at high temperature and short contact time, which permits vaporization of the high hydrogen containing components of the bitumen. The period of time is less than that which induces substantial thermal cracking of the charge. At the end of the time the vaporized produce is separated from the microspheres of calcined kaolin clay, the microspheres of calcined kaolin clay now bearing a deposit of combustible solid, metal impurities and adherent particles of colloidal calcium-containing clay originally contained in the bitumen concentrate, immediately reducing the temperature of the vaporized product to minimize thermal cracking and recovering the product for further refining to produce one or more premium products.

  8. The extraction of bitumen from western tar sands. Annual report, July 1990--July 1991

    SciTech Connect (OSTI)

    Oblad, A.G.; Bunger, J.W.; Deo, M.D.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

    1992-04-01T23:59:59.000Z

    Contents of this report include the following: executive summary; characterization of the native bitumen from the Whiterocks oil sand deposit; influence of carboxylic acid content on bitumen viscosity; water based oil sand separation technology; extraction of bitumen from western oil sands by an energy-efficient thermal method; large- diameter fluidized bed reactor studies; rotary kiln pyrolysis of oil sand; catalytic upgrading of bitumen and bitumen derived liquids; ebullieted bed hydrotreating and hydrocracking; super critical fluid extraction; bitumen upgrading; 232 references; Appendix A--Whiterocks tar sand deposit bibliography; Appendix B--Asphalt Ridge tar sand deposit bibliography; and Appendix C--University of Utah tar sands bibliography.

  9. Immobilization of Rocky Flats Graphite Fines Residue

    SciTech Connect (OSTI)

    Rudisill, T.S.

    1999-04-06T23:59:59.000Z

    The development of the immobilization process for graphite fines has proceeded through a series of experimental programs. The experimental procedures and results from each series of experiments are discussed in this report.

  10. York University Faculty of Fine Arts

    E-Print Network [OSTI]

    , Design, Digital Media, Film, Music, Theatre and Visual Arts. performance, which explores how digital media is transforming performance practice, Dance, Music, Film and Media Studies, Digital Media, or a related Fine Arts

  11. Creating and maintaining a gas cap in tar sands formations

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Karanikas, John Michael (Houston, TX); Dinkoruk, Deniz Sumnu (Houston, TX); Wellington, Scott Lee (Bellaire, TX)

    2010-03-16T23:59:59.000Z

    Methods for treating a tar sands formation are disclosed herein. Methods for treating a tar sands formation may include providing heat to at least part of a hydrocarbon layer in the formation from one or more heaters located in the formation. Pressure may be allowed to increase in an upper portion of the formation to provide a gas cap in the upper portion. At least some hydrocarbons are produced from a lower portion of the formation.

  12. Keys to Profitable Texas Sweet Potato Production, Storage and Marketing.

    E-Print Network [OSTI]

    Roberts, Roland E.; Longbrake, Thomas D.; Cotner, Sam; Menges, Terry; McCraw, B. Dean; Paterson, Donald R.

    1979-01-01T23:59:59.000Z

    consumption. Site Selection and Soil Management A sandy loam, fine sandy loam or loamy fine sand, at least 18 to 24 inches deep, underlaid by a clay loam or sandy clay loam is best suited for sweet potato production. Sandy soils produce smooth skinned... roots of desirable shape. Clay loams and silt loams are un suitable. Use crop rotations which allow at least 3 years before sweet potatoes are planted again on the same land. Some growers are now coming back every other year using land where winter...

  13. Petrological comparison of some tertiary and quaternary sands from Brazos and adjourning counties, Texas

    E-Print Network [OSTI]

    Elsik, William Clinton

    1960-01-01T23:59:59.000Z

    //ipyramids of quartz in the Catahoula sands differ- / / entiates them from P ~ternary sands. The Claiborne sands contain much , , ' / muscovite. Volcarj g glass is common in the Jackson sends. / Angular-s+' gular roundness ratios vary for both Tertiary... and / / / Quaternary sar g. Occasional angular-subangular ratio va1ues in excess / / of 2. 00 are saracteristic of the Quaternary sands. / / Glaua' gite is more common in Tertiary than in Quaternary sands. / / / Add' Lional petrological studies of the clay...

  14. The extraction of bitumen from western tar sands

    SciTech Connect (OSTI)

    Oblad, A.G.; Bunger, J.W.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

    1989-05-01T23:59:59.000Z

    This report represents the work done during the year of May 8, 1987 to June 9, 1988. This year was the first year of a five-year program. The overall objective of the latter is to advance the technologies for recovering bitumen from the tar sands by thermal and water assisted extraction means and upgrading of bitumen to synthetic crude, and conversion of bitumens to specialty products such as asphalt and resins to levels where realistic evaluations of technical and commercial potential can be made. Additionally, it is desired to have the data at a level which is adequate for design of pilot plants of appropriate size deemed necessary for commercial scale-up of the various processes being studied. The main areas for studies covered in this report are modelling and optimization of the hydropyrolysis process for upgrading bitumens, bitumen recovery by pyrolysis of the circle Cliffs tar sands in a fluid bed, pyrolysis of Whiterocks tar sand in a rotary kiln, modelling of the combustor in the coupled fluidized bed with interbed heat transfer using heat pipes, development of superior diluents for use in the water extraction of Utah's tar sands, and fractionation and characterization of the bitumens from Asphalt Ridge and Sunnyside tar sands. 169 refs., 60 figs., 31 tars.

  15. Cosmic Fine Tuning and the Multiverse Hypothesis

    E-Print Network [OSTI]

    Colin S. Coleman

    2012-06-28T23:59:59.000Z

    The observable universe is necessarily hospitable for life. There are indications, however, that the laws of physics and cosmological parameters need not take the form and values observed, and if they were slightly different life could not exist. A common approach to this fine tuning problem is to propose a cosmos with an ensemble of domains, mostly inhospitable for life. A Bayesian method is used to show that this hypothesis is more credible than a homogeneous fine tuned universe. This conclusion is straightforward for a finite ensemble, but can be extended to an infinite ensemble by applying a formulation of the Principle of Mediocrity.

  16. Sand pack residual oil saturations as affected by extraction with various solvents

    E-Print Network [OSTI]

    Murray, Clarence

    1958-01-01T23:59:59.000Z

    of Water Flood Extraction Test (Sand Packs J, K, L, and N) 8. Results of Water Flood Extraction Test (Sand Pack M) TABLES I. Behavior of Oils Mixed with Various Solvents 18 II. Sand and Sand Pack Properties III. Fluid Properties IV. Results of Water... solvents which do not alter the rock-fluM properties. The present work was performed on sand, packs composed of pure ~ Oica sand to provide wetting properties simflar to natural cores and to provide packs with reproducible characteristics. Fluids studied...

  17. Case study of a multiple sand waterflood, Hewitt Unit, OK

    SciTech Connect (OSTI)

    Ruble, D.B.

    1982-03-01T23:59:59.000Z

    Twenty-two sands in the Hewitt field have been flooded simultaneously by Exxon Co. U.S.A.'s Hewitt Unit, and a case history of the operations is detailed. A multiple sand waterflood project requires special optimization methods to improve oil recovery. Injection and production surveillance programs and optimization methods used are highlighted. These include injection wellbore design, injection distribution, production stimulation, polymer augmented injection, and infill drilling. Successful application of these techniques has increased ultimate recovery from this waterflood operation. 3 refs.

  18. Operations research applied to a sand and gravel plant

    E-Print Network [OSTI]

    Cordes, Alfred Henry

    1968-01-01T23:59:59.000Z

    GRAVEL BIN 2 Gat)6 GRAVE L BIN 4 SCREEN 3 DECK 2 ( GO TO Fig. 2) Figure 1. Diagram of the Primary Gravel Circuit Gate 2 Gate 1 16 ROTARY WASHER ( main circuit) Gate 6 17 SCREEN 3 DECK 1 20 SCREEN 3 DECK 2 28 22 GRAVEL BIN 4 GRA VEL...- veyor is used as a method for dewatering the sand product and elevating the product out of the sand bins and into storage bins for loading. Circuit Gates The gates 1 through 6 are' embedded in the circuits to provide for partial changes of flow...

  19. Behavior of a full scale tieback wall in sand

    E-Print Network [OSTI]

    Chung, Moonkyung

    1991-01-01T23:59:59.000Z

    BEHAVIOR OP A PULL SCALE TIEBACK WALL IN SAND A Thesis by MOONKYUNG CHUNG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1991 Major... Subject: Civil Engineering BEHAUIOR OF A FULL SCALE TIEBACR WALL IN SAND A Thesis MOONKYUNG CHUNG Approved as to style and content by ean-Louis Briaud hair of Committee) Derek V. Morris (Member) Christo her C. Mathewson (Member) Jam T. P. ao...

  20. Western Gas Sands Project: stratigrapy of the Piceance Basin

    SciTech Connect (OSTI)

    Anderson, S. (comp.)

    1980-08-01T23:59:59.000Z

    The Western Gas Sands Project Core Program was initiated by US DOE to investigate various low permeability, gas bearing sandstones. Research to gain a better geological understanding of these sandstones and improve evaluation and stimulation techniques is being conducted. Tight gas sands are located in several mid-continent and western basins. This report deals with the Piceance Basin in northwestern Colorado. This discussion is an attempt to provide a general overview of the Piceance Basin stratigraphy and to be a useful reference of stratigraphic units and accompanying descriptions.

  1. SAND96-2345 Distribution Unlimited Release Category UC-261

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection TechnicalResonantNovember11-3779SAND88-1807 * UC-2613 SAND96-2345

  2. LAMINAR: PRACTICAL FINE-GRAINED DECENTRALIZED INFORMATION

    E-Print Network [OSTI]

    Witchel, Emmett

    · Programming language based (PL) · Example: Jif, Flow Caml · Operating system based (OS) · Example: AsbestosLAMINAR: PRACTICAL FINE-GRAINED DECENTRALIZED INFORMATION FLOW CONTROL (DIFC) Indrajit Roy, Donald, SSN, personal calendar... But not every program you run is trusted Bugs in code, malicious plugins

  3. 700:20131001.1211 Fine Sun Sensor

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    700:20131001.1211 Fine Sun Sensor The Laboratory for Atmospheric and Space Physics (LASP) at the University of Colorado, Boulder is a world leader in space-based research including measurements of the Sun with respect to sun center. LASP has built sun position sensors for decades beginning with sensors for sub

  4. University of Florida College of Fine Arts

    E-Print Network [OSTI]

    Watson, Craig A.

    ­ pursuing the degree ­ final project and exams ­ graduation. General information for both Master's degree1 University of Florida College of Fine Arts School of Music GRADUATE STUDIES HANDBOOK Section 1 for International Student Services Graduate Music Placement Exams Graduate Listserv Graduate Advisory Group Section

  5. 7, 96359661, 2007 apportionment of fine

    E-Print Network [OSTI]

    Boyer, Edmond

    ). The air pollution generated in megacities poses a threat to human health and25 the environment; Mexico organic aerosol in Mexico City during the MILAGRO Experiment 2006 E. A. Stone1 , D. C. Snyder1 , R. J fraction of fine particulate matter (PM2.5) in Mexico City. Daily and select 12-h PM2.5 samples were

  6. System for utilizing oil shale fines

    DOE Patents [OSTI]

    Harak, Arnold E. (Laramie, WY)

    1982-01-01T23:59:59.000Z

    A system is provided for utilizing fines of carbonaceous materials such as particles or pieces of oil shale of about one-half inch or less diameter which are rejected for use in some conventional or prior surface retorting process, which obtains maximum utilization of the energy content of the fines and which produces a waste which is relatively inert and of a size to facilitate disposal. The system includes a cyclone retort (20) which pyrolyzes the fines in the presence of heated gaseous combustion products, the cyclone retort having a first outlet (30) through which vapors can exit that can be cooled to provide oil, and having a second outlet (32) through which spent shale fines are removed. A burner (36) connected to the spent shale outlet of the cyclone retort, burns the spent shale with air, to provide hot combustion products (24) that are carried back to the cyclone retort to supply gaseous combustion products utilized therein. The burner heats the spent shale to a temperature which forms a molten slag, and the molten slag is removed from the burner into a quencher (48) that suddenly cools the molten slag to form granules that are relatively inert and of a size that is convenient to handle for disposal in the ground or in industrial processes.

  7. ORIGINAL ARTICLE Fine Particulate Matter and Mortality

    E-Print Network [OSTI]

    Dominici, Francesca

    landmark cohort studies for estimating the chronic effects of fine particulate air pollution (PM2 that the Medicare files can be used to construct on-going cohorts for tracking the risk of air pollution over time- tory diseases, and also with increased mortality.1­6 Chronic effects of air pollution potentially

  8. CONFERENCES | EVENTS | FINE DINING TRINITY HALL

    E-Print Network [OSTI]

    Lasenby, Joan

    CONFERENCES | EVENTS | FINE DINING #12;32 WELCOME WELCOME TO TRINITY HALL CONFERENCE AND EVENTS "If and point the way to the gardens of Trinity Hall. "HENRY JAMES 1878 Trinity Hall is the fifth oldest college from the hustle and bustle of the City, Trinity Hall has a quiet, peaceful air making it perfect

  9. Acoustic emission and compaction creep of quartz sand at subcritical stress

    E-Print Network [OSTI]

    Lenz, Steven Christopher

    2002-01-01T23:59:59.000Z

    -assisted mechanisms. We have investigated the role of cracking during creep compaction of quartz sand by monitoring acoustic emissions (AE). Experiments on water saturated St. Peter quartz sand packs (255 ± 60 []m grain size, initial porosity ~32%) and quartz powder...

  10. Hot alkaline treatment to stimulate and consolidate the heavy oil Bachaquero-01 sand

    E-Print Network [OSTI]

    Valera Villarroel, Cesar Amabilis

    2005-02-17T23:59:59.000Z

    An experimental study was conducted to verify experimentally whether sand consolidation by high-temperature alkaline treatment was possible in the heavy oil Bachaquero-01 reservoir. The experiments were conducted using sand samples from a core taken...

  11. Solvent and water/surfactant process for removal of bitumen from tar sands contaminated with clay

    SciTech Connect (OSTI)

    Guymon, E.P.

    1990-11-06T23:59:59.000Z

    This patent describes a process for removing bitumen from a tar sand contaminated with clay. It comprises: obtaining a tar sand consisting of bitumen and clay mixed with sand; introducing the tar sand into a stripper vessel; dissolving the bitumen with a solvent, the solvent also removing the clay from the sand into a liquid medium formed with the solvent and bitumen; removing the liquid medium from the sand; and washing the sand with water to which a nonionic surface active agent has been added to remove residual bitumen from the sand, the surfactive agent comprising a linear alcohol having carbon atoms within the range on the order of about eight to fifteen carbon atoms and ethoxylate units on the carbon atoms within the range on the order of about two to eight ethoxylate units, the surfactant being present in the water in an effective amount less than about 0.5 percent by volume.

  12. Air quality over the Canadian oil sands: A first assessment using satellite observations

    E-Print Network [OSTI]

    Boersma, Folkert

    to as "oil sands" (or "tar sands")­ are located in the Canadian province of Alberta (see Figure 1a). The oil development and operations [e.g., Kelly et al., 2010], including air quality and acid deposition. Combustion

  13. Air Quality Impact Study for UMore Park Sand and Gravel Resources

    E-Print Network [OSTI]

    Netoff, Theoden

    Air Quality Impact Study for UMore Park Sand and Gravel Resources University of Minnesota Rosemount Elliott Hendrickson Inc. Air Quality Impact Study for UMore Park Sand and Gravel Resources UOFMN 103496 ...........................................................................3 2.8 Air Emissions

  14. Soil erosion rates caused by wind and saltating sand stresses in a wind tunnel

    SciTech Connect (OSTI)

    Ligotke, M.W.

    1993-02-01T23:59:59.000Z

    Wind erosion tests were performed in a wind tunnel in support of the development of long-term protective barriers to cap stabilized waste sites at the Hanford Site. Controlled wind and saltating sand erosive stresses were applied to physical models of barrier surface layers to simulate worst-case eolian erosive stresses. The goal of these tests was to provide information useful to the design and evaluation of the surface layer composition of an arid-region waste site barrier concept that incorporates a deep fine-soil reservoir. A surface layer composition is needed that will form an armor resistant to eolian erosion during periods of extreme dry climatic conditions, especially when such conditions result in the elimination or reduction of vegetation by water deprivation or wildfire. Because of the life span required of Hanford waste barriers, it is important that additional work follow these wind tunnel studies. A modeling effort is planned to aid the interpretation of test results with respect to the suitability of pea gravel to protect the finite-soil reservoir during long periods of climatic stress. It is additionally recommended that wind tunnel tests be continued and field data be obtained at prototype or actual barrier sites. Results wig contribute to barrier design efforts and provide confidence in the design of long-term waste site caps for and regions.

  15. In situ recovery of oil from Utah tar sand: a summary of tar sand research at the Laramie Energy Technology Center

    SciTech Connect (OSTI)

    Marchant, L.C.; Westhoff, J.D.

    1985-10-01T23:59:59.000Z

    This report describes work done by the United States Department of Energy's Laramie Energy Technology Center from 1971 through 1982 to develop technology for future recovery of oil from US tar sands. Work was concentrated on major US tar sand deposits that are found in Utah. Major objectives of the program were as follows: determine the feasibility of in situ recovery methods applied to tar sand deposits; and establish a system for classifying tar sand deposits relative to those characteristics that would affect the design and operation of various in situ recovery processes. Contents of this report include: (1) characterization of Utah tar sand; (2) laboratory extraction studies relative to Utah tar sand in situ methods; (3) geological site evaluation; (4) environmental assessments and water availability; (5) reverse combustion field experiment, TS-1C; (6) a reverse combustion followed by forward combustion field experiment, TS-2C; (7) tar sand permeability enhancement studies; (8) two-well steam injection experiment; (9) in situ steam-flood experiment, TS-1S; (10) design of a tar sand field experiment for air-stream co-injection, TS-4; (11) wastewater treatment and oil analyses; (12) economic evaluation of an in situ tar sand recovery process; and (13) appendix I (extraction studies involving Utah tar sands, surface methods). 70 figs., 68 tabs.

  16. Depositional environment of the "stringer sand" member, Lower Tuscaloosa Formation (Cretaceous), Mallalieu field, Mississippi 

    E-Print Network [OSTI]

    Cook, Billy Charles

    1968-01-01T23:59:59.000Z

    with the lower Unit being subdivided into an upper "sand and shale section" a middle "marine section", and a lower "massive sand section". The Mississippi Geological Society (1957) subdivided the subsurface Tuscaloosa Group into the Upper, Marine, and Lower...) described the Lower Tuscaloosa Formation of southern Mississippi as a unit of "rapidly alternating sands and shales of shallow marine origin, overlying a nearly unbroken sand sec- tion of still shallower marine or continental origin". Braunstein ai. so...

  17. COSTS MODELS IN DESIGN AND MANUFACTURING OF SAND CASTING PRODUCTS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    COSTS MODELS IN DESIGN AND MANUFACTURING OF SAND CASTING PRODUCTS Nicolas PERRY Ass. Prof., IRCCy.Bernard@irccyn.ec-nantes.fr Abstract: In the early phases of the product life cycle, the costs controls became a major decision tool difficulties, we will present an approach using a concept of cost entity related to the design and realization

  18. forControl,DynamicalSyste sandComputation

    E-Print Network [OSTI]

    Akhmedov, Azer

    "Optimization and Control Theory for Smart (Power) Grids" ESB 1001 April 2 Mustafa Khammash, UCSB 3:00 PM John Lygeros, ETH Zurich 11:00 AM "Stochastic Model Predictive Control: Tractability and HFH 4164Center forControl,DynamicalSyste m sandComputation CC DC Coordinator: Prof. Mustafa Khammash

  19. SAND AND GRAVEL MINING IN COLORADO RIPARIAN HABITATS

    E-Print Network [OSTI]

    Reclamation Specialist Colorado Division of Mined Land Reclamation 723 Centennial Building 1313 Sherman Reclamation Board (MLRB) administers the Colo rado Mined Land Reclamation Act of 1976. This law requires types of mining including sand and gravel mining. The Mined Land Reclamation Division (MLRD

  20. Noise Impact Study for UMore Park Sand and Gravel Resources

    E-Print Network [OSTI]

    Netoff, Theoden

    the sand and gravel mining operation. Mineral extraction is proposed on approximately 1,722 acres of land/landfill lining, clearing and grubbing, mineral extraction, material transporting, material processing including materials to and from the proposed extraction site, importation of non toxic compactable material

  1. Numerical and analytical modeling of sanding onset prediction

    E-Print Network [OSTI]

    Yi, Xianjie

    2004-09-30T23:59:59.000Z

    results vary with the selection of one or another rock strength criterion. In this work, we present four commonly used rock strength criteria in sanding onset prediction and wellbore stability studies: Mohr-Coulomb, Hoek-Brown, Drucker-Prager, and Modified...

  2. SAND2003-8146C Symposium on Thin Films

    E-Print Network [OSTI]

    Volinsky, Alex A.

    SAND2003-8146C Symposium on Thin Films ICM-9 9th International Conference on the Mechanical FRACTURE OF THIN GOLD FILMS N. R. Moody, D. P. Adams*, M. J. Cordill**, D. F. Bahr**, A. A. Volinsky of interfacial fracture energies of thin gold films as a function of film thickness is presented in this paper

  3. Solvent extraction process for recovering bitumen from tar sand

    SciTech Connect (OSTI)

    Hsieh, C.R.; Clifford, R.K.

    1987-06-30T23:59:59.000Z

    This patent describes a process for recovering bitumen from tar sand which comprises: (a) preparing a mixture containing divided tar sand and an organic solvent the ratio of the solvent to the bitumen in the tar sand is at least 2 parts solvent to 1 part bitumen form a bitument/solvent phase with a viscosity low enough to facilitate the physical separation of a significant portion of the bitumen/solvent phase from the mineral matrix of the tar sand; (b) separating by physical means at least a portion of the bitumen/solvent phase from the mineral matrix; (c) mixing the separated mineral matrix of step (b) with additional solvent in a washing stage to recover bitumen remaining with the mineral matrix; (d) introducing the recovered solvent/bitumen mixture from wash step (c) back into step (a); (e) recovering organic solvent from the mineral matrix of step (c) using an aqueous/organic solvent froth flotation phase separation where the majority of the mineral matrix remains with the aqueous phase; (f) recycling the solvent recovered from the phase separation of step (e) back to the washing step of (c); (g) separating bitumen from the bitumen/solvent phase of step (b); and (h) returning solvent collected from step (g) back to step (a).

  4. SANDIA REPORT SAND95-8224 " UC-406

    E-Print Network [OSTI]

    SANDIA REPORT SAND95-8224 " UC-406 Unlimited Release k Printed April 1995 Optimal Control of a CVD of Energy by Sandia Corporation. NOTICE This report was prepared as an account of work sponsored or subcontractors. This report has been reproduced from the best available copy. Available to DOE and DOE

  5. SANDIA REPORT SAND95-8223 q UC-404

    E-Print Network [OSTI]

    by coupling the OPT++ optimization library to the TAC02D finite element heat transfer code. The optimizationSANDIA REPORT SAND95-8223 q UC-404 Unlimited Release Printed April 1995 , . Optimal Heat Transfer UC-404 Optimal Heat Transfer Design of Chemical Vapor Deposition Reactors Christopher D. Moen

  6. SAND962331 Distribution Unlimited Release Category UC405

    E-Print Network [OSTI]

    Devine, Karen

    This manual describes the use of MPSalsa, an unstructured finite element (FE) code for solving chemically, heat transfer, mass transfer, and detailed reactions. In addition, considerable effort has been madeSAND96­2331 Distribution Unlimited Release Category UC­405 Printed September 1996 MPSalsa A FINITE

  7. Implementing Per Bak's Sand Pile Model as a Two-Dimensional Cellular Automaton

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    Implementing Per Bak's Sand Pile Model as a Two-Dimensional Cellular Automaton Leigh Tesfatsion 21 January 2009 Econ 308 Presentation Outline · Brief review: What is a Cellular Automaton? · Sand piles and "self-organized criticality" · Algorithmic description of Per Bak's sand pile model as a two

  8. Geochemical Evidence for an Eolian Sand Dam across the North and South Platte Rivers in Nebraska

    E-Print Network [OSTI]

    Loope, David B.

    Geochemical Evidence for an Eolian Sand Dam across the North and South Platte Rivers in Nebraska that the Nebraska Sand Hills once migrated across the North and South Platte rivers and dammed the largest tributary of the South Platte River, have compositions intermediate between the Nebraska Sand Hills (quartz

  9. The extraction of bitumen from western oil sands. Final report, July 1989--September 1993

    SciTech Connect (OSTI)

    Oblad, A.G.; Bunger, J.W.; Dahlstrom, D.A.; Deo, M.D.; Fletcher, J.V.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

    1994-03-01T23:59:59.000Z

    Research and development of surface extraction and upgrading processes of western tar sands are described. Research areas included modified hot water, fluidized bed, and rotary kiln pyrolysis of tar sands for extraction of bitumen. Bitumen upgrading included solvent extraction of bitumen, and catalytic hydrotreating of bitumen. Characterization of Utah tar sand deposits is also included.

  10. CO2 Mitigation Costs for Canada and the Alberta Oil Sands Justin David Anderson

    E-Print Network [OSTI]

    climate change and climate change regulation are heterogeneous. Canada, and her oil sands industry-Kyoto targets put forward by the opposition are predicted by the model. Oil sands upgrading/refining experiencesCO2 Mitigation Costs for Canada and the Alberta Oil Sands By Justin David Anderson Bachelor

  11. Rain splash of dry sand revealed by high-speed imaging and sticky paper splash targets

    E-Print Network [OSTI]

    Rain splash of dry sand revealed by high-speed imaging and sticky paper splash targets David Jon by raindrop impacts. We use high-speed imaging of drop impacts on dry sand to describe the drop (2007), Rain splash of dry sand revealed by high-speed imaging and sticky paper splash targets, J

  12. Achieving progressive fine granularity scalable coding in H.26L

    E-Print Network [OSTI]

    Shanmugampillai, Muthukumar

    2001-01-01T23:59:59.000Z

    Fine granularity scalable (FGS) coding and progressive fine granularity scalable (PFGS) coding are novel scalable video schemes which are ideally suited for streaming multimedia over networks with varying bandwidth, network conditions and receiver...

  13. The helium fine-structure controversy

    E-Print Network [OSTI]

    Ingvar Lindgren

    2008-10-05T23:59:59.000Z

    There is presently disagreement between theory and experiment as well as between different theoretical calculations concerning the fine-structure splitting of the lowest P state of the neutral helium atom. We believe that we have found a minor error in the formulas used by Drake et al. (Can. J. Phys. 80, 1195 (2002)) in their calculations, and we may have an explanation how the error has occurred. To what extent this might resolve (part of) the discrepancy is not known at present.

  14. How Nature Fine Tunes Protein Stability

    E-Print Network [OSTI]

    Wickstrom, Megan

    2007-07-14T23:59:59.000Z

    UNDERGRADUATE RESEARCH FELLOWS April 2007 Major: Biology ii ABSTRACT How Nature Fine Tunes Protein Stability (April 2007) Megan Wickstrom Department of Biology Texas A&M University Fellows Co-Advisors: Dr. C. Nick Pace Department of Medical Biochemistry... appreciate their loving support. Also, this thesis is dedicated to my fiancé who has been a constant source of motivation and inspiration. v ACKNOWLEDGMENTS I wish to express my sincere thanks and appreciation to my supervisor and mentor, Dr. C. Nick Pace...

  15. Process for treating moisture laden coal fines

    DOE Patents [OSTI]

    Davis, Burl E. (New Kensington, PA); Henry, Raymond M. (Gibsonia, PA); Trivett, Gordon S. (South Surrey, CA); Albaugh, Edgar W. (Birmingham, AL)

    1993-01-01T23:59:59.000Z

    A process is provided for making a free flowing granular product from moisture laden caked coal fines, such as wet cake, by mixing a water immiscible substance, such as oil, with the caked coal, preferably under low shear forces for a period of time sufficient to produce a plurality of free flowing granules. Each granule is preferably comprised of a dry appearing admixture of one or more coal particle, 2-50% by weight water and the water immiscible substance.

  16. antifungal and-or nitrogen: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Is 1.0 to 1.2 lb N recommendations 12;Nitrogen Recommendations for Corn Sands & loamy sand Other soils Yield Potential Organic Balser, Teri C. 9 Itraconazole Loaded Poly...

  17. 2007 Texas High Plains Sunflower Weed Control Guide Brent Bean, Extension Agronomy, Texas A&M-Amarillo, bbean@ag.tamu.edu, 806-677-5600

    E-Print Network [OSTI]

    Mukhtar, Saqib

    2007 Texas High Plains Sunflower Weed Control Guide Brent Bean, Extension Agronomy, Texas A, silty clay, clay. Medium = loam, silt loam, silt, sandy clay loam. Coarse = sand, loamy sand, sandy loam

  18. The extraction of bitumen from western oil sands. Quarterly report, April--June 1993

    SciTech Connect (OSTI)

    Oblad, A.G.; Bunger, J.W.; Deo, M.D.; Fletcher, J.V.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

    1993-07-01T23:59:59.000Z

    Accomplishments are briefly described for the following tasks: environmental impact statement; coupled fluidized bed bitumen recovery and coked sand combustion; water-based recovery of bitumen; rotary kiln process for recovery of bitumen and combustion of coke sand; recovery of bitumen from oil sands using fluidized bed reactors and combustion of spent sands in transport reactors; recovery of bitumen from oil sand and upgrading of bitumen by solvent extraction; catalytic and thermal upgrading of bitumens and bitumen-derived liquids; evaluation of Utah`s major oil sand deposits for the production of asphalt, high energy jet fuels and other specialty products; development of mathematical models for bitumen recovery and processing; completion of the cost examination study of the pilot plant restoration; development studies of equipment for three-product gravity separation of bitumen and sand; determine thickener requirements; and environmental studies of the North Salt Lake pilot plant rehabilitation and eventual operation and those environmental problems associated with eventual commercial products.

  19. Shredded tires and rubber-sand as lightweight backfill

    SciTech Connect (OSTI)

    Lee, J.H.; Salgado, R.; Lovell, C.W. [Purdue Univ., West Lafayette, IN (United States). School of Civil Engineering] [Purdue Univ., West Lafayette, IN (United States). School of Civil Engineering; Bernal, A. [GeoHidra, Caracas (Venezuela)] [GeoHidra, Caracas (Venezuela)

    1999-02-01T23:59:59.000Z

    The growing interest in utilizing waste materials in civil engineering applications has opened the possibility of constructing reinforced soil structures with unconventional backfills. Scrap tires are a high-profile waste material for which several uses have been studied, including the use of shredded tires as backfill. A triaxial testing program was conducted to investigate the stress-strain relationship and strength of tire chips and a mixture of sand and tire chips. The test results and additional information from the literature were used in the numerical modeling of wall backfills, both unreinforced and reinforced with geosynthetics. The numerical modeling results suggest tire shreds, particularly when mixed with sand, may be effectively used as a backfill.

  20. Simultaneous upgrading of tar sand bitumen and coal by corefining

    SciTech Connect (OSTI)

    Hsich, C.R.; Donaldson, W.I.

    1988-08-16T23:59:59.000Z

    A continuous process is described for simultaneously corefining a mixture of comminuted coal and tar sand bitumen to form a liquid refinery feed stock, having improved hydrocarbon content and viscosity and reduced organo-metallic and metal components, which process comprises: (a) combining bitumen substantially separated from tar sands with comminuted raw coal at a coal to liquid weight ratio of from about 1:2 to about 1 to 50 to form a slurry mixture; (b) subjecting the slurry mixture resulting from step (a) to hydrocracking conditions in the absence of added catalyst to produce off-gases and a mixture of co-refined bitumen and coal liquid and coal ash residues; and (c) recovering the corefined improve coal-bitumen liquid as a refinery feedstock.

  1. SAND 2009-0463P DAKOTA 101DAKOTA 101

    E-Print Network [OSTI]

    SAND 2009-0463P DAKOTA 101DAKOTA 101 C lib tiCalibration http://www.cs.sandia.gov/dakota Learning: osborne1 analytic test problem, with i = 1,...,33: i ii dxsdxsdxsxrxrxf 1 )( 2 )()( 2 )()( 2 (more coming soon) 4 #12;Example Data Set (osborne1)Example Data Set (osborne1) 1 2 1 1.2 0.8 0 4 0

  2. EA-1978: Sand Creek Winds, McCone County, Montana

    Broader source: Energy.gov [DOE]

    Western Area Power Administration (Western) is preparing an EA to analyze the potential environmental impacts of the proposed Sand Creek Winds Project, a 75-MW wind farm between the towns of Circle and Wolf Point in McCone County, Montana. The proposed wind farm would interconnect to Western’s existing Wolf Point to Circle 115-kV transmission line approximately 18 miles north of Wolf Point.

  3. An experimental investigation of sand transport in inclined eccentric annuli

    E-Print Network [OSTI]

    McClellan, John Christopher

    1991-01-01T23:59:59.000Z

    of Ihoyo and Tomren mentioned above. Also noted was the effect of a cuttings bed sliding, in inclinations up to the 60-degree range, after circulation was stopped. Other researchers have also noted this effect and the incipient dangers to drilling... suspension, heterogeneous suspension, saltation, clusters, dunes, continuous moving beds, and stationary beds. Similar to the author's research, they used sand particles continuously circulated at a set concentration. In their conclusions they state: 1...

  4. Heat transfer and oil displacement models for tar sands reservoirs

    SciTech Connect (OSTI)

    Ward, C.E.; Ward, G.D.

    1984-09-01T23:59:59.000Z

    A convective heat transfer model and one dimensional displacement model applicable to tar sands and heavy oils for use with a microcomputer are presented. The convective heat transfer model describes the temperature profiles in a thermal operation. The displacement model offers insight into the effect of process variables on the steam/oil or air/oil ratio of thermal operations. A method is presented for predicting the fuel burn in a fireflood.

  5. Leaf water potential in Pinus taeda L. as related to fluctuating soil water and atmospheric conditions

    E-Print Network [OSTI]

    Ellison, Stanley Lee

    1969-01-01T23:59:59.000Z

    growing on Bienville loamy fine sand near Rusk, Texas. The average available water storage capacity was 9. 50 inches in the 8-foot profile. Siruiltaneous measurements of leaf water potential and environmental variables were made weekly at two hour... pressure 2 deficit, temperature, and wind (R 0. 78). A regression equation relating total daily water stress to only vapor pressure deficit and soil water content in the 0- to 4-foot soil layer was also signifi- 2= cant (R = 0. 76). The total daily...

  6. The Hegar cache (41HR1030)

    E-Print Network [OSTI]

    Galan, Victor Joseph

    2009-05-15T23:59:59.000Z

    in the survey area, the most important factor is the variation in water content throughout the matrix (Van Dam and Schlager 2000:435). Soil grain size and porosity directly affect density; therefore, disturbances from plowing, excavation and re... increase reflectivity (Van Dam and Schlager 2000:435) thereby confusing interpretations. Water and iron-rich minerals, in the form of plinthite, are present on the Hegar site. Soils on the site are Boy loamy fine sand (NRCS 2005). The Boy Series is a...

  7. The effect of temperature on a variable permeability, two-stage sand consolidation technique

    E-Print Network [OSTI]

    Barger, Blane Rene

    1985-01-01T23:59:59.000Z

    consolidation processes. In 1961, Hower con- ducted large scale sand consolidation tests to determine the reasons of successes and failures for chemical sand consolidation efforts. He con- cluded that most failures were due to i mproper completion procedures... of Petroleum Technolo (December 1977) 1664, 1672. 2. Brooks, F. A. , Muecke, T. W. , Ri ckey, W. P. , Kerver, J. K. : "Externally Catalyzed Epoxy for Sand Control, " Journal of Petroleum Technology (June 1974) 589-594. 3. Hower, W. F. : "Large Scale...

  8. active fine particulates: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sciences and Ecology Websites Summary: Effects of Sampling Conditions on the Size Distribution of Fine Particulate Matter Emitted from complex because the dilution...

  9. airborne fine particulate: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sciences and Ecology Websites Summary: Effects of Sampling Conditions on the Size Distribution of Fine Particulate Matter Emitted from complex because the dilution...

  10. ambient fine particulate: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sciences and Ecology Websites Summary: Effects of Sampling Conditions on the Size Distribution of Fine Particulate Matter Emitted from complex because the dilution...

  11. Determining sand-body geometries for waterflood reservoirs: Examples from Oklahoma

    SciTech Connect (OSTI)

    Kreisa, R.D.; Pinero, E. (Mobil Research and Development Corp., Dallas, TX (USA))

    1987-02-01T23:59:59.000Z

    Waterflood projects require an accurate knowledge of reservoir geometry and well-to-well continuity. However, sandstones with thin, multiple-pay zones can be extremely difficult to correlate with confidence. Two case studies of Pennsylvanian sandstones in Oklahoma illustrate how a model for the depositional history of such reservoirs can be an effective tool for determining reservoir continuity. In contrast, correlation criteria such as similar wireline log signatures and relative sand-body thicknesses are not reliable in many situations. In Southwest Logan field (Beaver County), 5 to 15-ft thick reservoir sands formed as shallow marine sand ridges. Their dimensions were approximated from height-to-width ratios of modern sand ridges. Then the reservoir sands were mapped using wireline logs and core data. Individual reservoir sands were approximately 1-2 km wide and stacked en echelon vertically. Thus, a line-drive waterflood pattern oriented parallel to the axes of the ridges is recommended. Tatums field (Carter County) consists of 5 to 50-ft thick sandstones deposited in various deltaic environments. Distributary channel sands have good continuity downdip, but are narrow and lenticular across depositional strike. Crevasse splay and other bay-fill sands were deposited marginal to the channels and are extremely discontinuous. This depositional model can be used to improve flood patterns for these sands, leading to improved sweep efficiency. In both examples, for effective mapping, the depositional facies models have been used to register reservoir quality and wireline log signatures.

  12. Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Oil Sands Derived Fuels 2003 DEER Conference Presentation: National Research Council Canada, Ottawa, Ontario, Canada 2003deerneill.pdf More Documents & Publications Development...

  13. Study of pore pressure variation during liquefaction using two constitutive models for sand

    E-Print Network [OSTI]

    Taiebat, Mahdi; Shahir, Hadi; Pak, Ali

    2007-01-01T23:59:59.000Z

    of liquefiable sand in the centrifuge test. Keywords: Fullyof Liquefaction Analyses by Centrifuge Studies - Laboratory18. [19] Tan TS, Scott RF. Centrifuge scaling considerations

  14. Non-Incineration Treatment to Reduce Benzene and VOC Emissions from Green Sand Molding Systems

    SciTech Connect (OSTI)

    Fred S. Cannon; Robert C. Voigt

    2002-06-28T23:59:59.000Z

    Final report describing laboratory, pilot scale and production scale evaluation of advanced oxidation systems for emissions and cost reduction in metal casting green sand systems.

  15. The extraction of bitumen from western oil sands. Quarterly report, July--September, 1993

    SciTech Connect (OSTI)

    Oblad, A.G.; Bunger, J.W.; Dahlstrom, D.A.; Deo, M.D.; Fletcher, J.V.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

    1993-11-01T23:59:59.000Z

    This report cites task number followed by a brief statement of each task and the action taken this quarter. The tasks are: NEPA environmental information statement; coupled fluidized-bed bitumen recovery and coked sand combustion; water-based recovery of bitumen; rotary kiln process for recovery of bitumen and combustion of coke sand; recovery of bitumen from oil sands using fluidized bed reactors and combustion of spent sands in transport reactors; recovery of bitumen from oil sand and upgrading of bitumen by solvent extraction; catalytic and thermal upgrading of bitumens and bitumen-derived liquids; evaluation of Utah`s major oil sand deposits for the production of asphalt, high energy jet fuels, and other specialty products; development of mathematical models for bitumen recovery and processing; completion of the cost estimation study of the pilot plant restoration; development studies of equipment for three-product gravity separation of bitumen and sand; development studies of disposal of sand by conveying or pumping of high solids concentration sand-water slurries; and environmental studies of the North Salt Lake pilot plant rehabilitation and eventual operation and those environmental problems associated with eventual commercial products.

  16. Costs Models in Design and Manufacturing of Sand Casting Products

    E-Print Network [OSTI]

    Nicolas Perry; Magali Mauchand; Alain Bernard

    2010-11-26T23:59:59.000Z

    In the early phases of the product life cycle, the costs controls became a major decision tool in the competitiveness of the companies due to the world competition. After defining the problems related to this control difficulties, we will present an approach using a concept of cost entity related to the design and realization activities of the product. We will try to apply this approach to the fields of the sand casting foundry. This work will highlight the enterprise modelling difficulties (limits of a global cost modelling) and some specifics limitations of the tool used for this development. Finally we will discuss on the limits of a generic approach.

  17. Systems and methods for producing hydrocarbons from tar sands formations

    DOE Patents [OSTI]

    Li, Ruijian (Katy, TX); Karanikas, John Michael (Houston, TX)

    2009-07-21T23:59:59.000Z

    A system for treating a tar sands formation is disclosed. A plurality of heaters are located in the formation. The heaters include at least partially horizontal heating sections at least partially in a hydrocarbon layer of the formation. The heating sections are at least partially arranged in a pattern in the hydrocarbon layer. The heaters are configured to provide heat to the hydrocarbon layer. The provided heat creates a plurality of drainage paths for mobilized fluids. At least two of the drainage paths converge. A production well is located to collect and produce mobilized fluids from at least one of the converged drainage paths in the hydrocarbon layer.

  18. PDC bit proves effective at South Graham Deese Sand unit

    SciTech Connect (OSTI)

    Preslar, P.L.; McDermaid, D.

    1983-10-01T23:59:59.000Z

    In the past two years, Polycrystalline Diamond Compact Bits have gained acceptance in the United States with many spot applications in soft to medium hard formations. Diamond Compact Bits were chosen by Tenneco's Mid-Continent Division Drilling Department to be used at its South Graham Deese Sand Unit in Southern Oklahoma. Drilling in the field is complicated by a plunging anticline which has caused deviation problems in excess of 20. Previous wells were drilled in 24 days, excluding completion time, using conventional rotary bits and applying light bit weight to control deviation. Presently, by using a PDC bit, similar wells can be drilled in as little as 10 days.

  19. Production from multiple zones of a tar sands formation

    DOE Patents [OSTI]

    Karanikas, John Michael; Vinegar, Harold J

    2013-02-26T23:59:59.000Z

    A method for treating a tar sands formation includes providing heat to at least part of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat is allowed to transfer from the heaters to at least a portion of the formation. Fluids are produced from the formation through at least one production well that is located in at least two zones in the formation. The first zone has an initial permeability of at least 1 darcy. The second zone has an initial of at most 0.1 darcy. The two zones are separated by a substantially impermeable barrier.

  20. Renewable Energy Opportunities at White Sands Missile Range, New Mexico

    SciTech Connect (OSTI)

    Chvala, William D.; Solana, Amy E.; States, Jennifer C.; Warwick, William M.; Weimar, Mark R.; Dixon, Douglas R.

    2008-09-01T23:59:59.000Z

    The document provides an overview of renewable resource potential at White Sands Missile Range (WSMR) based primarily upon analysis of secondary data sources supplemented with limited on-site evaluations. The effort was funded by the U.S. Army Installation Management Command (IMCOM) as follow-on to the 2005 DoD Renewable Energy Assessment. This effort focuses on grid-connected generation of electricity from renewable energy sources and also ground source heat pumps (GSHPs) for heating and cooling buildings, as directed by IMCOM.

  1. User`s manual for SNL-SAND-II code

    SciTech Connect (OSTI)

    Griffin, P.J.; Kelly, J.G. [Sandia National Labs., Albuquerque, NM (United States); VanDenburg, J.W. [Science and Engineering Associates, Inc., Albuquerque, NM (United States)

    1994-04-01T23:59:59.000Z

    Sandia National Laboratories, in the process of characterizing the neutron environments at its reactor facilities, has developed an enhanced version of W. McElroy`s original SAND-II code. The enhanced input, output, and plotting interfaces make the code much easier to use. The basic physics and operation of the code remain unchanged. Important code enhancements include the interfaces to the latest ENDF/B-VI and IRDF-90 dosimetry-quality cross sections and the ability to use silicon displacement-sensitive devices as dosimetry sensors.

  2. SAND97-8490 UC-404 Unlimited Release

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection TechnicalResonantNovember11-3779SAND88-1807 * UC-2613

  3. SANDIA REPORT SAND2011-3779 Unlimited Release

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection TechnicalResonantNovember11-3779SAND88-1807.VUQ.SAUQ.P6.02;3779

  4. SANDIA REPORT SAND2011-9011 Unlimited Release

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection TechnicalResonantNovember11-3779SAND88-1807.VUQ.SAUQ.P6.02;3779011

  5. Appraisal of the tight sands potential of the Sand Wash and Great Divide Basins. Final report, June 1989--June 1991

    SciTech Connect (OSTI)

    Not Available

    1993-08-01T23:59:59.000Z

    The volume of future tight gas reserve additions is difficult to estimate because of uncertainties in the characterization and extent of the resource and the performance and cost-effectiveness of stimulation and production technologies. Ongoing R&D by industry and government aims to reduce the risks and costs of producing these tight resources, increase the certainty of knowledge of their geologic characteristics and extent, and increase the efficiency of production technologies. Some basins expected to contain large volumes of tight gas are being evaluated as to their potential contribution to domestic gas supplies. This report describes the results of one such appraisal. This analysis addresses the tight portions of the Eastern Greater Green River Basin (Sand Wash and Great Divide Subbasins in Northwestern Colorado and Southwestern Wyoming, respectively), with respect to estimated gas-in-place, technical recovery, and potential reserves. Geological data were compiled from public and proprietary sources. The study estimated gas-in-place in significant (greater than 10 feet net sand thickness) tight sand intervals for six distinct vertical and 21 areal units of analysis. These units of analysis represent tight gas potential outside current areas of development. For each unit of analysis, a ``typical`` well was modeled to represent the costs, recovery and economics of near-term drilling prospects in that unit. Technically recoverable gas was calculated using reservoir properties and assumptions about current formation evaluation and extraction technology performance. Basin-specific capital and operating costs were incorporated along with taxes, royalties and current regulations to estimate the minimum required wellhead gas price required to make the typical well in each of unit of analysis economic.

  6. Potential turbine fuels from western Kentucky tar sand bitumen

    SciTech Connect (OSTI)

    Moore, H.F.; Johnson, C.A.; Sutton, W.A.; Benslay, R.M. (Ashland Petroleum Co., KY (USA))

    1987-04-01T23:59:59.000Z

    The declining quality of petroleum is a particular problem for aviation turbine fuels. Since these fuels are required to meet stringent corrosion, thermal stability and purity specification, very little in the way of contaminants or heteroatoms can be tolerated. However, heavier and more sour crude supplied result in lower straight-run turbine fuel yields, higher sulfur contents, and higher aromatic contents. While all turbine fuels were originally prepared from high quality stocks by distillation, many commercial and military fuels now require hydrotreatment to meet specifications. The work described in this program extrapolates these present trends to very heavy feedstocks. Tar sands bitumen and heavy crude oils are low API gravity, high viscosity hydrocarbonaceous materials commonly exhibiting high levels of heteroatomic species, high metals content and high levels of asphaltenes, plus water and solids not readily separated by conventional technology without dilution. Tar sands bitumen is highly cyclic with many polycyclic rings and naphthenic constituents. Sulfur is primarily in thiophenic structures, with nitrogen included in the ring structure. Asphaltenes are in high proportion, with a large amount of sulfur, nitrogen and metallic inclusions. Each of these characteristics represent specific concerns to refiners.

  7. Helium fine structure theory for determination of Krzysztof Pachucki

    E-Print Network [OSTI]

    Pachucki, Krzysztof

    Helium fine structure theory for determination of Krzysztof Pachucki Institute of Theoretical in the calculation of helium fine-structure splitting of the 23 PJ states, based on the quantum electrodynamic theory by comparison with all experimental results for light helium-like ions and with the known large nuclear charge

  8. BIDIMENSIONAL SAND PILE AND ICE PILE MODELS ENRICA DUCHI, ROBERTO MANTACI, HA DUONG PHAN, DOMINIQUE ROSSIN

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    BIDIMENSIONAL SAND PILE AND ICE PILE MODELS ENRICA DUCHI, ROBERTO MANTACI, HA DUONG PHAN, DOMINIQUE ROSSIN Abstract. In this paper we define an extension of the Sand Pile Model SPM and more generally of the Ice Pile Model IPM by adding a further dimension to the system. By drawing a parallel between

  9. Guide to Preparing SAND Reports and other communication products : quick reference guide.

    SciTech Connect (OSTI)

    Not Available

    2009-10-01T23:59:59.000Z

    This Quick Reference Guide supplements the more complete Guide to Preparing SAND Reports and Other Communication Products. It provides limited guidance on how to prepare SAND Reports at Sandia National Laboratories. Users are directed to the in-depth guide for explanations of processes.

  10. Anomalous density dependence of static friction in sand Viktor K. Horvath,1

    E-Print Network [OSTI]

    Jánosi, Imre M.

    Anomalous density dependence of static friction in sand Viktor K. Horva´th,1 Imre M. Ja´nosi,2; revised manuscript received 26 April 1996 We measured experimentally the static friction force Fs on the surface of a glass rod immersed in dry sand. We observed that Fs is extremely sensitive to the closeness

  11. Atmospheric Environment 36 (2002) 503509 Trend of acid rain and neutralization by yellow sand

    E-Print Network [OSTI]

    Atmospheric Environment 36 (2002) 503­509 Trend of acid rain and neutralization by yellow sand 2001; accepted 11 April 2001 Abstract Acid rain and its neutralization by yellow sand in East Asia were was obtained. Firstly, the trend of the acid rain in East Asia due to the rapid increase of Chinese pollutants

  12. Marine Geology 126(1995) 249-269 Longshore sand waves at Southampton Beach, New York

    E-Print Network [OSTI]

    US Army Corps of Engineers

    as early as 1939, few measurements of longshore sand waves have been made, and their dynamic behavior. The model shows wave refraction to be an important mechanism contributing to the longevity of longshore sand waves, acting to retard the otherwise expected diffusion. Model calculations of the migration

  13. The Influence of Topology on Hydraulic Conductivity in a Sand-and-Gravel Aquifer

    E-Print Network [OSTI]

    The Influence of Topology on Hydraulic Conductivity in a Sand-and-Gravel Aquifer by Roger H. Morin1 and tracer testing was conducted in a single well that penetrated a sand-and-gravel aquifer at the U, and tortuosity that primarily control the hydraulic conductivity. Results show that F correlates well with K

  14. Traffic Impact Study for UMore Park Sand and Gravel Resources Project

    E-Print Network [OSTI]

    Netoff, Theoden

    Traffic Impact Study for UMore Park Sand and Gravel Resources Project DRAFT City of Rosemount Impact Study for UMore Park Sand and Gravel Resources Project City of Rosemount and Empire Township Figure 13 Existing Lane Geometry and Intersection Control Figure 14 Mitigation Measures for 2011 and 2030

  15. Velocities of deep water reservoir sands De-hua Han, University of Houston

    E-Print Network [OSTI]

    and glass bean mixture (Zimmer, et al., 2002). Texture of deep-water sands Core samples come from two wellsVelocities of deep water reservoir sands De-hua Han, University of Houston M. Batzle, Colorado the application for DHI techniques. Summary In deep-water sedimentary processes, compaction is a major force

  16. Guide to preparing SAND reports and other communication products : quick reference guide.

    SciTech Connect (OSTI)

    Not Available

    2007-03-01T23:59:59.000Z

    This 'Quick Reference Guide' supplements the more complete 'Guide to Preparing SAND Reports and Other Communication Products'. It provides limited guidance on how to prepare SAND Reports at Sandia National Laboratories. Users are directed to the in-depth guide for explanations of processes.

  17. Fluid escape from reservoirs: implications from cold seeps, fractures and injected sands

    E-Print Network [OSTI]

    Mazzini, Adriano

    Abstract Fluid escape from reservoirs: implications from cold seeps, fractures and injected sands Abstract Fluid escape from reservoirs can take place through (hydraulic) fracturing, sand injection and seepage. Above several Tertiary hydrocarbon reservoirs in the North Sea, substantial amounts of fractures

  18. Pour-point depression of crude oils by addition of tar sand bitumen

    SciTech Connect (OSTI)

    Soderberg, D.J.

    1988-03-01T23:59:59.000Z

    A process is described for reducing the pour point of a crude oil which comprises adding a pour-point depressant selected from the group consisting of a raw tar sands bitumen and hydrotreated tar sands bitumen to form a blend possessing a relatively lower pour point.

  19. Production of bitumen-derived hydrocarbon liquids from Utah's tar sands: Final report

    SciTech Connect (OSTI)

    Oblad, A.G.; Hanson, F.V.

    1988-07-01T23:59:59.000Z

    In previous work done on Utah's tar sands, it had been shown that the fluidized-bed pyrolysis of the sands to produce a bitumen-derived hydrocarbon liquid was feasible. The research and development work conducted in the small-scale equipment utilized as feed a number of samples from the various tar sand deposits of Utah elsewhere. The results from these studies in yields and quality of products and the operating experience gained strongly suggested that larger scale operation was in order to advance this technology. Accordingly, funding was obtained from the State of Utah through Mineral Leasing Funds administered by the College of Mines and Earth Sciences of the University of Utah to design and build a 4-1/2 inch diameter fluidized-bed pilot plant reactor with the necessary feeding and recovery equipment. This report covers the calibration and testing studies carried out on this equipment. The tests conducted with the Circle Cliffs tar sand ore gave good results. The equipment was found to operate as expected with this lean tar sand (less than 5% bitumen saturation). The hydrocarbon liquid yield with the Circle Cliffs tar sand was found to be greater in the pilot plant than it was in the small unit at comparable conditions. Following this work, the program called for an extensive run to be carried out on tar sands obtained from a large representative tar sand deposit to produce barrel quantities of liquid product. 10 refs., 45 figs., 11 tabs.

  20. Liquid phase oxidation kinetics of oil sands bitumen: Models for in situ combustion numerical simulators

    SciTech Connect (OSTI)

    Adegbesan, K.O.; Donnelly, J.K.; Moore, R.G.; Bennion, D.W.

    1986-08-01T23:59:59.000Z

    Multiresponse kinetic models are established for the low-temperature oxidation (LTO) reaction of Athabasca oil sands bitumen. The models provide adequate description of the overall rate of oxygen consumption and of the reactions of the liquid phase bitumen components. The LTO models are suitable for use in the in situ combustion numerical simulators of oil sands.

  1. Empirical model determines energy required to clean sand from well bore

    SciTech Connect (OSTI)

    Appah, D.; Ichara, M. (Univ. of Port Harcourt (Nigeria))

    1994-02-28T23:59:59.000Z

    An empirical hydraulic model has been developed for determining the energy required for cleaning a vertical and nearly vertical well bore plugged with sand particles. The model considers pressure losses and cleanout time and compares sand cleanout time during direct and reverse circulation of water. Good agreement was obtained between the model and experimental results.

  2. Modeling Urban Storm-Water Quality Treatment: Model Development and Application to a Surface Sand Filter

    E-Print Network [OSTI]

    Modeling Urban Storm-Water Quality Treatment: Model Development and Application to a Surface Sand management; Urban areas; Hydraulic models; Sand, filter; Parameters; Estimation; Water treatment. Author. Optimized model parameter values were calculated on a storm by storm basis. Thereafter, a gamma distribution

  3. Fractal dimension based sand ripple suppression for mine hunting with sidescan sonar

    E-Print Network [OSTI]

    Nelson, James

    mine hunting. Manual inspection of such data can be a time consuming task that requires significant1 Fractal dimension based sand ripple suppression for mine hunting with sidescan sonar J. D. B. Nelson and N. G. Kingsbury Abstract--Sand ripples present a difficult challenge to current mine hunting

  4. Reservoir characterization of the upper Merecure and lower Oficina Formations sands in the Leona Este Field, Eastern Venezuela Basin 

    E-Print Network [OSTI]

    Flores Millan, Maria Carolina

    2001-01-01T23:59:59.000Z

    The "S5", "T" and "U1" sands, traditionally described as part of the lower section of the "Oficina" Formation, and the "U2" sand, as part of the upper interval of the "Merecure" Formation, contain the largest oil remaining ...

  5. Alberta bound : the interface between Alberta's environmental policies and the environmental management of three Albertan oil sands companies

    E-Print Network [OSTI]

    Lemphers, Nathan C

    2009-01-01T23:59:59.000Z

    The Athabasca Oil Sands, located in northeastern Alberta, Canada, were for many years anomalous. Two oil sands operators developed their extraction techniques for 30 years, refining their technology before production became ...

  6. Miocene sand distribution of the South Marsh Island and the Vermillion area, offshore Louisiana, Gulf of Mexico

    E-Print Network [OSTI]

    Kim, Jingoo

    1997-01-01T23:59:59.000Z

    This study investigates the Miocene sand distribution of offihore central Louisiana, Gulf of Mexico. Investigating the distribution of this sand, which plays an important role as a reservoir for oil and gas, contributes to petroleum exploration...

  7. Improved fluid bed combustor efficiencies through fines recycle

    SciTech Connect (OSTI)

    Rickman, W.S.

    1980-04-01T23:59:59.000Z

    Carbon burnup efficiencies of 99.9% and higher have been attained on a 0.4-MW(t) atmospheric fluid bed combustor with fines recycle. A cyclone and sintered metal filter system separated the fines from the off-gas stream, returning them at 600/sup 0/C (1150/sup 0/F) to the fluid bed. The fines were metered through a unique rotary valve that also served as a pressure boundary between the fluid bed and the fines recycle hopper. Combustor operation was fully automated with a 100-channel process controller and supervisory computer. This high combustion efficiency is especially significant, since the fuel was graphite sized to less than 5 mm (1.3 in.) maximum size. More than 30% of the feed was fine enough to be quickly entrained, placing a substantial burden on the fines recycle system. Detailed modeling techniques were successfully developed to allow prediction of recycle rates and temperatures needed to maintain high combustion efficiency. This model has now been used to analyze coal combustion tests sponsored by Electric Power Research Institute. Surface reaction rate constants were first determined using combustor data taken during cold, low-flow fines recycle tests. These were then used to predict the effect of higher rates of recycle at various temperatures.

  8. Measurement of Moisture Content in Sand, Slag, and Crucible Materials

    SciTech Connect (OSTI)

    Gray, J.H.

    1999-09-20T23:59:59.000Z

    The deinventory process at Rocky Flats (RFETS) has included moisture content measurements of sand, slag, and crucible (SSC) materials by performing weight loss measurements at 210 degrees - 220 degrees Celsius on representative samples prior to packaging for shipment. Shipping requirements include knowledge of the moisture content. Work at the Savannah River Technology Center (SRTC) showed that the measurement at 210 degrees - 220 degrees Celsius did not account for all of the moisture. The objective of the work in this report was to determine if the measurement at 210 degrees - 220 degrees Celsius at RFETS could be used to set upper bounds on moisture content and therefore, eliminate the need for RFETS to unpack, reanalyze and repack the material.

  9. Centrifuge modeling of LNAPL transport in partially saturated sand

    SciTech Connect (OSTI)

    Esposito, G.; Allersma, H.G.B.; Selvadurai, A.P.S.

    1999-12-01T23:59:59.000Z

    Model tests were performed at the Geotechnical Centrifuge Facility of Delft University of Technology, The Netherlands, to examine the mechanics of light nonaqueous phase liquid (LNAPL) movement in a partially saturated porous granular medium. The experiment simulated a 2D spill of LNAPL in an unsaturated sand prepared at two values of porosity. The duration of the centrifuge model tests corresponded to a prototype equivalent of 110 days. The choice of modeling a 2D flow together with the use of a transparent container enabled direct visual observation of the experiments. Scaling laws developed in connection with other centrifuge modeling studies were used to support the test results. Tests were conducted at two different centrifuge accelerations to verify, by means of the modeling of models technique, the similitude between the different experiments. The paper presents details of the experimental methodologies and the measuring techniques used to evaluate the final distribution of water and LNAPL content in the soils.

  10. Characterization of various bitumen samples from tar sands

    SciTech Connect (OSTI)

    Majid, A.; Bornais, J.; Hutchison, R.A. (National Research Council of Canada, Ottawa, ON (Canada). Div. of Chemistry)

    1989-01-01T23:59:59.000Z

    The authors have investigated twenty three bitumen samples obtained using different separation methods such as: ultracentrifugation, Dean-Stark extraction, solvent extraction employing vigorous agitation, hot water separation and the Solvent Extraction Spherical Agglomeration technique. These samples were extracted from oil sand feedstocks of different grades, Suncor sludge pond tailings and mineral agglomerates obtained form the Solvent Extraction Spherical Agglomeration process. All of the bitumen samples were examined on a comparative basis using various analytical techniques. These included: fractionation into asphaltenes and maltenes: elemental analyses; molecular weight determination using vapour pressure osmometry and gel permeation chromatography, infrared, proton and /sup 13/C nuclear magnetic resonance spectroscopy. Proton /sup 13/C n.m.r. spectroscopic data were used to determine the distribution of various types of hydrogens and carbons in the samples. These data were also used to derive various molecular parameters in order to investigate average molecular structures of different bitumen samples and some of their asphaltene fractions.

  11. Preliminary relative permeability estimates of methanehydrate-bearing sand

    SciTech Connect (OSTI)

    Seol, Yongkoo; Kneafsey, Timothy J.; Tomutsa, Liviu; Moridis,George J.

    2006-05-08T23:59:59.000Z

    The relative permeability to fluids in hydrate-bearingsediments is an important parameter for predicting natural gas productionfrom gas hydrate reservoirs. We estimated the relative permeabilityparameters (van Genuchten alpha and m) in a hydrate-bearing sand by meansof inverse modeling, which involved matching water saturation predictionswith observations from a controlled waterflood experiment. We used x-raycomputed tomography (CT) scanning to determine both the porosity and thehydrate and aqueous phase saturation distributions in the samples. X-rayCT images showed that hydrate and aqueous phase saturations arenon-uniform, and that water flow focuses in regions of lower hydratesaturation. The relative permeability parameters were estimated at twolocations in each sample. Differences between the estimated parametersets at the two locations were attributed to heterogeneity in the hydratesaturation. Better estimates of the relative permeability parametersrequire further refinement of the experimental design, and betterdescription of heterogeneity in the numerical inversions.

  12. Preliminary relative permeability estimates of methanehydrate-bearing sand

    SciTech Connect (OSTI)

    Seol, Yongkoo; Kneafsey, Timothy J.; Tomutsa, Liviu; Moridis,George J.

    2006-05-08T23:59:59.000Z

    The relative permeability to fluids in hydrate-bearing sediments is an important parameter for predicting natural gas production from gas hydrate reservoirs. We estimated the relative permeability parameters (van Genuchten alpha and m) in a hydrate-bearing sand by means of inverse modeling, which involved matching water saturation predictions with observations from a controlled waterflood experiment. We used x-ray computed tomography (CT) scanning to determine both the porosity and the hydrate and aqueous phase saturation distributions in the samples. X-ray CT images showed that hydrate and aqueous phase saturations are non-uniform, and that water flow focuses in regions of lower hydrate saturation. The relative permeability parameters were estimated at two locations in each sample. Differences between the estimated parameter sets at the two locations were attributed to heterogeneity in the hydrate saturation. Better estimates of the relative permeability parameters require further refinement of the experimental design, and better description of heterogeneity in the numerical inversions.

  13. Characterization of various bitumen samples from tar sands

    SciTech Connect (OSTI)

    Majid, A.; Bornais, J.; Hutchison, R.A.

    1988-06-01T23:59:59.000Z

    Bitumen is a complex mixture of a large of number of organic molecules. The composition of bitumen and the nature of their various individual components has been the subject of considerable research during the past two decades. Various modes of extraction of bitumen from oil sands such as heat, extreme mechanical force, chemical agents and solvents could significantly affect some properties of bitumen. Variations in the composition of the oil sands feed stock could also affect the properties of the extracted bitumen. However, the most commonly used analytical techniques such as elemental analyses, density and viscosity cannot detect small compositional differences in the various samples of bitumen. With developments in instrumentation and techniques the structural characterization of complex petroleum fractions employing high resolution proton and 13/sub C/ nuclear magnetic resonance (NMR) spectroscopy is becoming more popular. The parameters describe structural features, such as the fraction of carbon that is aromatic, the number and length of alkyl substituents in an average molecule, the percentage of aromatic carbons that are substituted and the number of aromatic rings per molecule. Given sufficient data these parameters can provide useful characterization of a hydrocarbon mixture. In the authors' laboratories, the authors have collected a number of bitumen samples obtained from different feedstocks employing a variety of extraction techniques. It was of interest to investigate any differences between these samples from different sources. This paper reports a detailed investigation of average structural parameters by the combined use of elemental analyses, molecular weight determinations and proton and 13/sub C/NMR spectroscopy. A total of twenty three butimen samples have been studied.

  14. Uncovering the Microbial Diversity of the Alberta Oil Sands through Metagenomics: A Stepping Stone for Enhanced Oil Recovery and

    E-Print Network [OSTI]

    Voordouw, Gerrit

    the genomes of the subsurface Heavy Oil and Tar Sands (HOTS) reservoirs; the oil sand mine tailings ponds1 Uncovering the Microbial Diversity of the Alberta Oil Sands through Metagenomics: A Stepping Stone for Enhanced Oil Recovery and Environmental Solutions Writing Team: Julia Foght1 , Robert Holt2

  15. A Finely-Predicted Higgs Boson Mass from A Finely-Tuned Weak Scale

    E-Print Network [OSTI]

    Lawrence J. Hall; Yasunori Nomura

    2009-10-19T23:59:59.000Z

    If supersymmetry is broken directly to the Standard Model at energies not very far from the unified scale, the Higgs boson mass lies in the range 128-141 GeV. The end points of this range are tightly determined. Theories with the Higgs boson dominantly in a single supermultiplet predict a mass at the upper edge, (141 \\pm 2) GeV, with the uncertainty dominated by the experimental errors on the top quark mass and the QCD coupling. This edge prediction is remarkably insensitive to the supersymmetry breaking scale and to supersymmetric threshold corrections so that, in a wide class of theories, the theoretical uncertainties are at the level of \\pm 0.4 GeV. A reduction in the uncertainties from the top quark mass and QCD coupling to the level of \\pm 0.3 GeV may be possible at future colliders, increasing the accuracy of the confrontation with theory from 1.4% to 0.4%. Verification of this prediction would provide strong evidence for supersymmetry, broken at a very high scale of ~ 10^{14 \\pm 2} GeV, and also for a Higgs boson that is elementary up to this high scale, implying fine-tuning of the Higgs mass parameter by ~ 20-28 orders of magnitude. Currently, the only known explanation for such fine-tuning is the multiverse.

  16. Polymer treatments for D Sand water injection wells: Sooner D Sand Unit Weld County, Colorado. Final report, April 1997

    SciTech Connect (OSTI)

    Cannon, T.J.

    1998-10-01T23:59:59.000Z

    Polymer-gel treatments in injection wells were evaluated for improving sweep efficiency in the D Sandstone reservoir at the Sooner Unit, Weld County, Colorado. Polymer treatments of injection wells at the Sooner Unit were expected to improve ultimate recovery by 1.0 percent of original-oil-in-place of 70,000 bbl of oil. The Sooner D Sand Unit was a demonstration project under the US Department of Energy Class I Oil Program from which extensive reservoir data and characterization were obtained. Thus, successful application of polymer-gel treatments at the Sooner Unit would be a good case-history example for other operators of waterfloods in Cretaceous sandstone reservoirs in the Denver Basin.

  17. Preliminary studies on the recovery of bitumen from Nigerian tar sands: I. Beneficiation and solvent extraction

    SciTech Connect (OSTI)

    Ademodi, B.; Oshinowo, T.; Sanni, S.A.; Dawodu, O.F.

    1987-01-01T23:59:59.000Z

    Solvent extraction of bitumen from Nigerian tar sands using toluene has been investigated. Pulverization of the tar sands followed by agglomeration in a mechanical shaker resulted in spherical agglomerates having higher bitumen contents than the mined tar sand. The extent of beneficiation was 4% and 19% for the high grade and low grade sands, respectively. Temperature, agitation, and tar sand/solvent (S/L) ratios were found to be significant variables affecting the dissolution of bitumen from the sand. S/L ratio has the greatest effect on extraction efficiency. The rate of bitumen extraction, expressed as extractability eta* showed great dependence on agitation. About 16- and 15-fold increases in extractability were obtained for S/L ratios of 1/20 and 1/5 respectively for a 2.8 fold increase in agitation. At the initial stages of extraction, asphaltene content of the bitumen extracted at 50/sup 0/C was less than that in the bitumen extracted at 25/sup 0/C. This finding could have significant implications for the overall economics of upgrading processes. A high extraction efficiency of about 99% was obtained with stagewise extraction at high tar sand/solvent ratios.

  18. Excess Foundry Sand Characterization and Experimental Investigation in Controlled Low-Strength Material and Hot-Mixing Asphalt

    SciTech Connect (OSTI)

    Paul J. Tikalsky, Hussain U. Bahia, An Deng and Thomas Snyder

    2004-10-15T23:59:59.000Z

    This report provides technical data regarding the reuse of excess foundry sand. The report addresses three topics: a statistically sound evaluation of the characterization of foundry sand, a laboratory investigation to qualify excess foundry sand as a major component in controlled low-strength material (CLSM), and the identification of the best methods for using foundry sand as a replacement for natural aggregates for construction purposes, specifically in asphalt paving materials. The survival analysis statistical technique was used to characterize foundry sand over a full spectrum of general chemical parameters, metallic elements, and organic compounds regarding bulk analysis and leachate characterization. Not limited to characterization and environmental impact, foundry sand was evaluated by factor analyses, which contributes to proper selection of factor and maximization of the reuse marketplace for foundry sand. Regarding the integration of foundry sand into CLSM, excavatable CLSM and structural CLSM containing different types of excess foundry sands were investigated through laboratory experiments. Foundry sand was approved to constitute a major component in CLSM. Regarding the integration of foundry sand into asphalt paving materials, the optimum asphalt content was determined for each mixture, as well as the bulk density, maximum density, asphalt absorption, and air voids at Nini, Ndes, and Nmax. It was found that foundry sands can be used as an aggregate in hot-mix asphalt production, but each sand should be evaluated individually. Foundry sands tend to lower the strength of mixtures and also may make them more susceptible to moisture damage. Finally, traditional anti-stripping additives may decrease the moisture sensitivity of a mixture containing foundry sand, but not to the level allowed by most highway agencies.

  19. Excess Foundry Sand Characterization and Experimental Investigation in Controlled Low-Strength Material and Hot-Mixing Asphalt

    SciTech Connect (OSTI)

    Pauul J. Tikalsky

    2004-10-31T23:59:59.000Z

    This report provides technical data regarding the reuse of excess foundry sand. The report addresses three topics: (1) a statistically sound evaluation of the characterization of foundry sand, (2) a laboratory investigation to qualify excess foundry sand as a major component in controlled low-strength material (CLSM), and (3) the identification of the best methods for using foundry sand as a replacement for natural aggregates for construction purposes, specifically in asphalt paving materials. The survival analysis statistical technique was used to characterize foundry sand over a full spectrum of general chemical parameters, metallic elements, and organic compounds regarding bulk analysis and leachate characterization. Not limited to characterization and environmental impact, foundry sand was evaluated by factor analyses, which contributes to proper selection of factor and maximization of the reuse marketplace for foundry sand. Regarding the integration of foundry sand into CLSM, excavatable CLSM and structural CLSM containing different types of excess foundry sands were investigated through laboratory experiments. Foundry sand was approved to constitute a major component in CLSM. Regarding the integration of foundry sand into asphalt paving materials, the optimum asphalt content was determined for each mixture, as well as the bulk density, maximum density, asphalt absorption, and air voids at N{sub ini}, N{sub des}, and N{sub max}. It was found that foundry sands can be used as an aggregate in hot-mix asphalt production, but each sand should be evaluated individually. Foundry sands tend to lower the strength of mixtures and also may make them more susceptible to moisture damage. Finally, traditional anti-stripping additives may decrease the moisture sensitivity of a mixture containing foundry sand, but not to the level allowed by most highway agencies.

  20. Influence of 8-Oxoguanosine on the Fine Structure of DNA Studied...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    8-Oxoguanosine on the Fine Structure of DNA Studied with Biasing-Potential Replica Exchange Simulations. Influence of 8-Oxoguanosine on the Fine Structure of DNA Studied with...

  1. Bachelor of Fine Arts Lindsey Michelle Allen, Art

    E-Print Network [OSTI]

    Gering, Jon C.

    Bachelor of Fine Arts Lindsey Michelle Allen, Art Todd Christopher Baran, Art Mindy Lynnette Bryant Emily Dian Buford, Psychology Brennen Gail Bushnell, English Andrea Jeanne Calvin, English Erica Marie

  2. AQUEOUS BIPHASE EXTRACTION FOR PROCESSING OF FINE COAL

    SciTech Connect (OSTI)

    K. Osseo-Asare; X. Zeng

    2002-01-01T23:59:59.000Z

    The objective of this research project is to develop an aqueous biphase extraction process for the treatment of fine coals. Aqueous biphase extraction is an advanced separation technology that relies on the ability of an aqueous system consisting of a water-soluble polymer and another component, e.g., another polymer, an inorganic salt, or a nonionic surfactant, to separate into two immiscible aqueous phases. The principle behind the partition of solid particles in aqueous biphase systems is the physicochemical interaction between the solid surface and the surrounding liquid solution. In order to remove sulfur and mineral matter from fine coal with aqueous biphasic extraction, it is necessary to know the partitioning behavior of coal, as well as the inorganic mineral components. Therefore, in this research emphasis was placed on the partitioning behavior of fine coal particles as well as model fine inorganic particles in aqueous biphase systems.

  3. FINE VARIATION AND FRACTAL MEASURES G. A. Edgar

    E-Print Network [OSTI]

    Edgar, Gerald

    FINE VARIATION AND FRACTAL MEASURES G. A. Edgar The Ohio State University revised October, 1994. EDGAR density results are proved for this setting. This paper may be considered a counter­ part of [7

  4. MICROSTRUCTURE AND PROPERTIES OF DUAL PHASE STEELS CONTAINING FINE PRECIPITATES

    E-Print Network [OSTI]

    Gau, J.S.

    2014-01-01T23:59:59.000Z

    and Properties of Dual-Phase Steels, R. A. Kot and J. W.of Niobium Microalloyed Dual- Phase Steel, MetallurgicalAND PROPERTIES OF DUAL PHASE STEELS CONTAINING FINE

  5. Microsoft Word - Finely_NorthValley_CX.docx

    Broader source: Energy.gov (indexed) [DOE]

    Manager - KEWM-4 Proposed Action: Finely Creek and North Valley Creek property funding Fish and Wildlife Project No. and Contract No.: 2002-003-00, BPA-58888 Categorical Exclusion...

  6. Modified approaches for high pressure filtration of fine clean coal

    SciTech Connect (OSTI)

    Yang, J.; Groppo, J.G.; Parekh, B.K. [Center for Applied Energy Research, Lexington, KY (United States)

    1995-12-31T23:59:59.000Z

    Removal of moisture from fine (minus 28 mesh) clean coal to 20% or lower level is difficult using the conventional vacuum dewatering technique. High pressure filtration technique provides an avenue for obtaining low moisture in fine clean coal. This paper describes a couple of novel approaches for dewatering of fine clean coal using pressure filtration which provides much lower moisture in fine clean coal than that obtained using conventional pressure filter. The approaches involve (a) split stream dewatering and (b) addition of paper pulp to the coal slurry. For Pittsburgh No. 8 coal slurry, split stream dewatering at 400 mesh provided filter cake containing 12.9% moisture compared to 24.9% obtained on the feed material. The addition of paper pulp to the slurry provided filter cake containing about 17% moisture.

  7. Deadlock-free fine-grained thread migration

    E-Print Network [OSTI]

    Cho, Myong Hyon

    Several recent studies have proposed fine-grained, hardware-level thread migration in multicores as a solution to power, reliability, and memory coherence problems. The need for fast thread migration has been well documented, ...

  8. Characterization of the L-1 sand using well logs and amplitude attribute analysis 

    E-Print Network [OSTI]

    Ratliff, Thomas Lee

    1989-01-01T23:59:59.000Z

    University Chair of Advisory Committee: Dr. Joel S. Watkins The L-1 sand (located in the Gulf Coastal Plain of Texas) is the first sand of the Miocene and lies just above the Anahuac marine shale. Its thickness ranges from 9? 64 feet throughout the study... area. A relatively thick bed of shale ranging from 126 ? 160 feet lies immediately above it, The data set used for this study consists of a three dimensional seismic survey and existing well control. The L-1 sand thickness, sub-sea depth, reservoir...

  9. Characterization of the L-1 sand using well logs and amplitude attribute analysis

    E-Print Network [OSTI]

    Ratliff, Thomas Lee

    1989-01-01T23:59:59.000Z

    University Chair of Advisory Committee: Dr. Joel S. Watkins The L-1 sand (located in the Gulf Coastal Plain of Texas) is the first sand of the Miocene and lies just above the Anahuac marine shale. Its thickness ranges from 9? 64 feet throughout the study... area. A relatively thick bed of shale ranging from 126 ? 160 feet lies immediately above it, The data set used for this study consists of a three dimensional seismic survey and existing well control. The L-1 sand thickness, sub-sea depth, reservoir...

  10. Sources and distribution of fine quartz sand in the northeastern Gulf of Mexico: a paleogeographic reconstruction using fourier grain shape analysis

    E-Print Network [OSTI]

    Bates, Charles Arthur

    1985-01-01T23:59:59.000Z

    Grail who was originally a committee member, but d1ed dur1ng the research. Special thanks go to my fellow graduate students Diane Westen, Jeff Crisp, Greg Bond, Tom Covington, and Scott Bicknell. Financial support was provided by TEXACO through research... grants. Appreciat1on 1s extended to the people and inst1tutions who prov1ded samples: USGS, Office of Marine Geology; H. C. Kent, Colorado School of Mines; L. J. Doyle, University of South Florida; W. W. Schroeder, Un1vers1ty of Alabama; Dr. Bryant...

  11. Integration of High Temperature Gas-cooled Reactor Technology with Oil Sands Processes

    SciTech Connect (OSTI)

    L.E. Demick

    2011-10-01T23:59:59.000Z

    This paper summarizes an evaluation of siting an HTGR plant in a remote area supplying steam, electricity and high temperature gas for recovery and upgrading of unconventional crude oil from oil sands. The area selected for this evaluation is the Alberta Canada oil sands. This is a very fertile and active area for bitumen recovery and upgrading with significant quantities piped to refineries in Canada and the U.S Additionally data on the energy consumption and other factors that are required to complete the evaluation of HTGR application is readily available in the public domain. There is also interest by the Alberta oil sands producers (OSP) in identifying alternative energy sources for their operations. It should be noted, however, that the results of this evaluation could be applied to any similar oil sands area.

  12. Technologies, markets and challenges for development of the Canadian Oil Sands industry

    E-Print Network [OSTI]

    Lacombe, Romain H.

    2007-01-01T23:59:59.000Z

    This paper provides an overview of the current status of development of the Canadian oil sands industry, and considers possible paths of further development. We outline the key technology alternatives, critical resource ...

  13. Extensional wave attenuation and velocity in partially-saturated sand in the sonic frequency range

    SciTech Connect (OSTI)

    Liu, Z.; Rector, J.W.; Nihei, K.T.; Tomutsa, L.; Myer, L.R.; Nakagawa, S.

    2002-06-17T23:59:59.000Z

    Extensional wave attenuation and velocity measurements on a high permeability Monterey sand were performed over a range of gas saturations for imbibition and degassing conditions. These measurements were conducted using extensional wave pulse propagation and resonance over a 1 - 9 kHz frequency range for a hydrostatic confining pressure of 8.3 MPa. Analysis of the extensional wave data and the corresponding X-ray CT images of the gas saturation show strong attenuation resulting from the presence of the gas (QE dropped from 300 for the dry sand to 30 for the partially-saturated sand), with larger attenuation at a given saturation resulting from heterogeneous gas distributions. The extensional wave velocities are in agreement with Gassmann theory for the test with near-homogeneous gas saturation and with a patchy saturation model for the test with heterogeneous gas saturation. These results show that partially-saturated sands under moderate confining pressure can produce strong intrinsic attenuation for extensional waves.

  14. Spatiotemporal model for the progression of sand blowouts Hezi Yizhaq1

    E-Print Network [OSTI]

    Ashkenazy, Yossi "Yosef"

    , Noam Levin2 and Haim Tsoar3 1 Solar energy and Environmental Physics, BIDR, Ben-Gurion University in Australia. Introduction. ­ Sand dunes cover a vast area of Earth land surface. Their formation and dynamics

  15. The evaluation of waterfrac technology in low-permeability gas sands in the East Texas basin

    E-Print Network [OSTI]

    Tschirhart, Nicholas Ray

    2005-11-01T23:59:59.000Z

    operators believe that low-viscosity, low-proppant concentration fracture stimulation treatments known as ??waterfracs?? produce comparable stimulation results in low-permeability gas sands and are preferred because they are less expensive than gelled...

  16. In Situ Groundwater Arsenic Removal Using Iron Oxide-Coated Sand

    E-Print Network [OSTI]

    Yu, Hongxu

    2010-10-12T23:59:59.000Z

    the sand filter suggest that both reversible adsorption and irreversible precipitation are responsible for removing arsenic from the water. Unlike conventional excavate-and-fill permeable reactive barriers, the treatment capacity of our in situ created...

  17. Characterization Report on Sand, Slag, and Crucible Residues and on Fluoride Residues

    SciTech Connect (OSTI)

    Murray, A.M.

    1999-02-10T23:59:59.000Z

    This paper reports on the chemical characterization of the sand, slag, and crucible (SS and C) residues and the fluoride residues that may be shipped from the Rocky Flats Environmental Technology Site (RFETS) to Savannah River Site (SRS).

  18. Ultrasonic reactor for the recovery of bitumen from tar sand: Final report

    SciTech Connect (OSTI)

    Bunger, J.W.; Miller, J.D.; Johnson, S.A.

    1987-07-28T23:59:59.000Z

    A bench scale ultrasonic reactor was designed for testing to determine its feasiblity for enhancing the dissolution and extraction of bitumen from Utah tar sands using both solvent and water as a liquid medium for dissolution and extraction and to compare the results. The ultrasonic reactor did not significantly enhance dissolution of bitumen into the sovlent. Ultrasonic energy did appear to enhance intraparticle diffusion in consolidated tar sand. The rate of disengagement of the bitumen from the sand in hot water extraction was slightly enhanced and a continuous flow unit may show promise for the recovery of bitumen from tar sands. Assuming that high recovery efficiency can be obtained, the energy requirements for the ultrasonic reactor did not appear to be prohibitive. 5 figs., 3 tabs.

  19. Study of the Behavior of a Commercial Scale Inhibitor on Silica Sand

    E-Print Network [OSTI]

    Vaca Bustamante, Victor

    2010-12-14T23:59:59.000Z

    squeeze lifetimes in order to minimize the number of treatments, thus reducing the cost. The objective of this thesis is to study the adsorption of the commercial scale inhibitor SI onto silica sand. By investigating this intrinsic phenomenon, an optimized...

  20. Bionomics of phlebotomine sand flies (Diptera: Psychodidae) in the province of Al-Baha, Saudi Arabia

    E-Print Network [OSTI]

    Doha, Said Abdallah; Samy, Abdallah Mohammed

    2010-11-01T23:59:59.000Z

    The bionomics of phlebotomine sand flies (Diptera: Psychodidae) were studied for two successive years (January 1996-December 1997) at 12 collecting stations representing six sectors of the province of Al-Baha, Saudi Arabia. The predominant species...

  1. Methane Hydrate Formation and Dissocation in a Partially Saturated Sand--Measurements and Observations

    SciTech Connect (OSTI)

    Kneafsey, Timothy J.; Tomutsa, Liviu; Moridis, George J.; Seol, Yongkoo; Freifeld, Barry; Taylor, Charles E.; Gupta, Arvind

    2005-03-01T23:59:59.000Z

    We performed a sequence of tests on a partially water-saturated sand sample contained in an x-ray transparent aluminum pressure vessel that is conducive to x-ray computed tomography (CT) observation. These tests were performed to gather data for estimation of thermal properties of the sand/water/gas system and the sand/hydrate/water/gas systems, as well as data to evaluate the kinetic nature of hydrate dissociation. The tests included mild thermal perturbations for the estimation of the thermal properties of the sand/water/gas system, hydrate formation, thermal perturbations with hydrate in the stability zone, hydrate dissociation through thermal stimulation, additional hydrate formation, and hydrate dissociation through depressurization with thermal stimulation. Density changes throughout the sample were observed as a result of hydrate formation and dissociation, and these processes induced capillary pressure changes that altered local water saturation.

  2. Guide to preparing SAND reports and other communication products.

    SciTech Connect (OSTI)

    Not Available

    2011-09-01T23:59:59.000Z

    This guide describes the R&A process, Common Look and Feel requirements, and preparation and publishing procedures for communication products at Sandia National Laboratories. Samples of forms and examples of published communications products are provided. This guide takes advantage of the wealth of material now available on the Web as a resource. Therefore, it is best viewed as an electronic document. If some of the illustrations are too small to view comfortably, you can enlarge them on the screen as needed. The format of this document is considerably different than that usually expected of a SAND Report. It was selected to permit the large number of illustrations and examples to be placed closer to the text that references them. In the case of forms, covers, and other items that are included as examples, a link to the Web is provided so that you can access the items and download them for use. This guide details the processes for producing a variety of communication products at Sandia National Laboratories. Figure I-1 shows the general publication development process. Because extensive supplemental material is available from Sandia on the internal web or from external sources (Table I-1), the guide has been shortened to make it easy to find information that you need.

  3. Hydrotreating the native bitumen from the Whiterocks tar sand deposit

    SciTech Connect (OSTI)

    Longstaff, D.C.; Deo, M.D.; Hanson, F.V.

    1993-03-01T23:59:59.000Z

    The bitumen from the Whiterocks oil sand deposit in the Uinta Basin of eastern Utah was hydrotreated in a fixed-bed reactor to determine the extent of upgrading as a function of process operating variables. The process variables investigated included reactor pressure (11.2--16.7 MPa); reactor temperature (641--712 K) and liquid hourly space velocity (0.19--0.77 h{sup {minus}1}). The hydrogen/oil ratio, 890 m{sup 3} m{sup {minus}3} was fixed in all experiments. A sulphided Ni-Mo on alumina hydrodenitrogenation catalyst was used in these studies. The deactivation of the catalyst, 0.2 {degree}C/day, was monitored by thedecline in the API gravity of the total liquid product with time on-stream at a standard set of conditions. The effect of temperature, WHSV, and pressure on denitrogenation, desulphurization, and metals removalwere studied and apparent kinetic parameters determined. The effect of process variables on residue conversion and Conradson carbon residue reduction were also investigated.

  4. Characterization and potential utilization of Whiterocks (Utah) tar sand bitumen

    SciTech Connect (OSTI)

    Tsai, C.H.; Deo, M.D.; Hanson, F.V.; Oblad, A.G. (Lab. of Coal Science, Synthetic Fuels and Catalysis, Dept. of Fuels Engineering, Univ. of Utah, Salt Lake City, UT (US))

    1991-01-01T23:59:59.000Z

    This paper reports on the native Whiterocks (Utah) tar sand bitumen that was separated into several boiling range fractions for detailed analysis and characterization. The lighter fraction (477-617 K) was evaluated for use as a transportation fuel and the residues ({gt}617 K and {gt}728 K) were evaluated for use as road asphalts. The 617 K plus residue from the Whiterocks bitumen can be classified as a viscosity grade AC-10 asphalt whereas the 728 K plus residue failed to meet asphalt specifications. Apart from the asphalt specification tests, several sophisticated techniques were used to characterize these fractions. The detailed structure of the low molecular weight portions of Whiterocks bitumen (477-617 K and 617-728 K) was determined by combined GC-MS. Several physical properties were also measured to evaluate the potential of the 477-617 K fraction as a high density/energy aviation turbine fuel. This lower molecular weight fraction of the bitumen contained predominantly naphthenic hydrocarbons and lesser concentrations of aromatic hydrocarbons. This was confirmed by the FTIR spectra and by the GC-MS analyses. As a result, the 477-617 K fraction appeared to be an excellent candidate as a feedstock for the production of high density, aviation turbine fuels following mild hydrotreating.

  5. Catalyst poisoning during tar-sands bitumen upgrading

    SciTech Connect (OSTI)

    Carruthers, J.D.; Brinen, J.S.; Komar, D.A.; Greenhouse, S. [CYTEC Industries, Stamford, CT (United States)

    1994-12-31T23:59:59.000Z

    A number of hydrotreating catalysts are used in commercial heavy oil upgrading facilities. One of these, a CoO/MoO{sub 3}/Al{sub 2}O{sub 3} catalyst has been evaluated in a pilot plant CSTR for Tar-Sands Bitumen upgrading. Following its use in a test of 200 hours duration, the catalyst was removed, de-oiled, regenerated by air-calcination to remove the coke, and then re-tested. Samples of the coked, fresh and regenerated catalyst were each examined using surface analytical techniques. ESCA and SIMS analysis of the coked and regenerated catalyst samples show, as expected, significant contamination of the catalyst with Ni and V. In addition, the SIMS analysis clearly reveals that the edges of the catalyst pellets are rich in Ca, Mg and Fe while the Ni, V and coke are evenly distributed. Regeneration of the catalyst by calcination removes the carbonaceous material but appears not to change the distribution of the metal contaminants. Retesting of the regenerated catalyst shows a performance similar to that of the fresh catalyst. These data serve to support the view that catalyst deactivation during early use is not due to the skin of Ca and Mg on the pellets but rather via the poisoning of active sites by carbonaceous species.

  6. Hydrotreating the native bitumen from the Whiterocks tar sand deposit

    SciTech Connect (OSTI)

    Longstaff, D.C.; Deo, M.D.; Hanson, F.V.

    1993-01-01T23:59:59.000Z

    The bitumen from the Whiterocks oil sand deposit in the Uinta Basin of eastern Utah was hydrotreated in a fixed-bed reactor to determine the extent of upgrading as a function of process operating variables. The process variables investigated included reactor pressure (11.2--16.7 MPa); reactor temperature (641--712 K) and liquid hourly space velocity (0.19--0.77 h[sup [minus]1]). The hydrogen/oil ratio, 890 m[sup 3] m[sup [minus]3] was fixed in all experiments. A sulphided Ni-Mo on alumina hydrodenitrogenation catalyst was used in these studies. The deactivation of the catalyst, 0.2 [degree]C/day, was monitored by thedecline in the API gravity of the total liquid product with time on-stream at a standard set of conditions. The effect of temperature, WHSV, and pressure on denitrogenation, desulphurization, and metals removalwere studied and apparent kinetic parameters determined. The effect of process variables on residue conversion and Conradson carbon residue reduction were also investigated.

  7. The effect of variable permeability on a two stage sand consolidation technique

    E-Print Network [OSTI]

    Tobola, David Philip

    1985-01-01T23:59:59.000Z

    that was mixed with the resin to reduce viscosity. This develop- ment. reduced the risk of fracturing the formation due to excessive pump pressures from injecting a high viscosity fluid. Hower9 determined that the main reasons for consolida- tion failure..., W. L. : "A New Low-Viscosity, Epoxy Sand-Consolidation Process, " Journal of Petroleum Technolo (December 1978) 1805- 1812. Hower, W. F. and Brown, W: "Large Scale Laboratory Investi- gation of Sand Consolidation Techniques, " Journal...

  8. An Investigation for Disposal of Drill Cuttings into Unconsolidated Sandstones and Clayey Sands

    SciTech Connect (OSTI)

    Mese, Ali; Dvorkin, Jack; Shillinglaw, John

    2000-09-11T23:59:59.000Z

    This project include experimental data and a set of models for relating elastic moduli/porosity/texture and static-to-dynamic moduli to strength and failure relationships for unconsolidated sands and clayey sands. The results of the project should provide the industry with a basis for wider use of oil base drilling fluids in water sensitive formations by implementing drill cutting injection into existing wells at abandoned formations and controlling fracture geometry to prevent ground water contamination.

  9. Effects of repetitive stressing on the strength and deformation of an angular, coarse sand

    E-Print Network [OSTI]

    Dillon, Larry Albert

    1962-01-01T23:59:59.000Z

    III SOIL USED IN INVESTIGATION IV TESTING PROCEDURES AND EQUIPMENT Repeated Loading Unit and Tests Recording of Rate of Stress Application Triaxiai Compression Cell and Tests V RESULTS Deflection Histories Stress Versus Strain Relationships... from Shear Tests on Sand b. Results of Shear Tests on Sand 2. Effect of Repeated Ioading on Stress Versus Deformation Relationship of Silty Clay 3. Typical Stress Versus Strain Relationship fox Repeated Application of Compressive Load to Soil...

  10. Paleontological overview of oil shale and tar sands areas in Colorado, Utah, and Wyoming.

    SciTech Connect (OSTI)

    Murphey, P. C.; Daitch, D.; Environmental Science Division

    2009-02-11T23:59:59.000Z

    In August 2005, the U.S. Congress enacted the Energy Policy Act of 2005, Public Law 109-58. In Section 369 of this Act, also known as the ''Oil Shale, Tar Sands, and Other Strategic Unconventional Fuels Act of 2005,'' Congress declared that oil shale and tar sands (and other unconventional fuels) are strategically important domestic energy resources that should be developed to reduce the nation's growing dependence on oil from politically and economically unstable foreign sources. In addition, Congress declared that both research- and commercial-scale development of oil shale and tar sands should (1) be conducted in an environmentally sound manner using management practices that will minimize potential impacts, (2) occur with an emphasis on sustainability, and (3) benefit the United States while taking into account concerns of the affected states and communities. To support this declaration of policy, Congress directed the Secretary of the Interior to undertake a series of steps, several of which are directly related to the development of a commercial leasing program for oil shale and tar sands. One of these steps was the completion of a programmatic environmental impact statement (PEIS) to analyze the impacts of a commercial leasing program for oil shale and tar sands resources on public lands, with an emphasis on the most geologically prospective lands in Colorado, Utah, and Wyoming. For oil shale, the scope of the PEIS analysis includes public lands within the Green River, Washakie, Uinta, and Piceance Creek Basins. For tar sands, the scope includes Special Tar Sand Areas (STSAs) located in Utah. This paleontological resources overview report was prepared in support of the Oil Shale and Tar Sands Resource Management Plan Amendments to Address Land Use Allocations in Colorado, Utah, and Wyoming and PEIS, and it is intended to be used by Bureau of Land Management (BLM) regional paleontologists and field office staff to support future projectspecific analyses. Additional information about the PEIS can be found at http://ostseis.anl.gov.

  11. Data base for hydraulically stimulated gas wells producing from tight sands formations

    SciTech Connect (OSTI)

    Not Available

    1982-03-01T23:59:59.000Z

    A data base was assembled in 1978 consisting of well records from more than 900 hydraulically fractured wells in the Piceance, Uinta, Washakie, Sand Wash, and Denver Basins. The purpose of the present study is to develop a western gas sand computerized data base for hydraulically stimulated gas wells by adapting and expanding the above-mentioned data file. This report describes the data file, tasks accomplished to date, and a sample well record. (DMC)

  12. Effects of Phosphate on Uranium(VI) Adsorption to Goethite-Coated Sand

    E-Print Network [OSTI]

    Roden, Eric E.

    Effects of Phosphate on Uranium(VI) Adsorption to Goethite-Coated Sand T A O C H E N G , M A R K O natural and contaminated environments. We studied U(VI) adsorption on goethite-coated sand (to mimic of increase in U(VI) adsorption. Phosphate was strongly bound by the goethite surface in the low pH range

  13. Influence of two calcium sources on the growth and nodulation of two tropical legumes 

    E-Print Network [OSTI]

    Wood Euceda, Miriam Jeannette

    1986-01-01T23:59:59.000Z

    1. 77 a 2. 04 a 2. 11 a 2. 02 a 1. 88 ab 1. 71 a 1. 98 ab 2. 48 c 2. 08 b Means withsn co umns wi t e same etter are not significantly different by Ouncans multiple range test at P=0. 05. 3. 0 . SAND a H GYPSUM CI LIME 2. 4 Z 1. 8 O... to study the effect of varying the Al/Ca ratio of acid soils, by adding lime or a neutral salt (gypsum), on the establishment and nodulation of tropical legumes. The soils used were a Hearne clay (pH 4. 7), and a Silstid loamy fine sand (pH 4. 6). Lime...

  14. Fine particulate chemical composition and light extinction at Meadview, AZ

    SciTech Connect (OSTI)

    Delbert J. Eatough; Wenxuan Cui; Jeffery Hull; Robert J. Farber [Brigham Young University, Provo, UT (United States). Department of Chemistry and Biochemistry

    2006-12-15T23:59:59.000Z

    The concentration of fine particulate nitrate, sulfate, and carbonaceous material was measured for 12-hr daynight samples using diffusion denuder samplers during the Project Measurement of Haze and Visibility Effects (MOHAVE) July to August 1992 Summer Intensive study at Meadview, AZ, just west of Grand Canyon National Park. Organic material was measured by several techniques. Only the diffusion denuder method measured the semivolatile organic material. Fine particulate sulfate and nitrate (using denuder technology) determined by various groups agreed. Based on the various collocated measurements obtained during the Project MOHAVE study, the precision of the major fine particulate species was {+-} 0.6 {mu}g/m{sup 3} organic material, {+-} 0.3 {mu}g/m{sup 3} ammonium sulfate, and {+-} 0.07 {mu}g/m{sup 3} ammonium nitrate. Fine particulate organic material was the principal particulate contributor to light extinction during the study period, with fine particulate sulfate as the second most important contributor. Particle light extinction was dominated by sulfate and organic material during periods of lowest light extinction. Combination of the extinction data and chemical mass balance analysis of sulfur oxides sources in the region indicate that the major anthropogenic contributors to light extinction were from the Los Angeles, CA, and Las Vegas, NV, urban areas. Mohave Power Project associated secondary sulfate was a negligible contributor to light extinction. 49 refs., 12 figs., 7 tabs.

  15. Lattice complexity and fine graining of symbolic sequence

    E-Print Network [OSTI]

    Da-Guan Ke; Hong Zhang; Qin-Ye Tong

    2008-04-05T23:59:59.000Z

    A new complexity measure named as Lattice Complexity is presented for finite symbolic sequences. This measure is based on the symbolic dynamics of one-dimensional iterative maps and Lempel-Ziv Complexity. To make Lattice Complexity distinguishable from Lempel-Ziv Complexity, an approach called fine-graining process is also proposed. When the control parameter fine-graining order is small enough, the two measures are almost equal. While the order increases, the difference between the two measures becomes more and more significant. Applying Lattice Complexity to logistic map with a proper order, we find that the sequences that are regarded as complex are roughly at the edges of chaotic regions. Further derived properties of the two measures concerning the fine-graining process are also discussed.

  16. Dynamic Behavior of Sand: Annual Report FY 11

    SciTech Connect (OSTI)

    Antoun, T; Herbold, E; Johnson, S

    2012-03-15T23:59:59.000Z

    Currently, design of earth-penetrating munitions relies heavily on empirical relationships to estimate behavior, making it difficult to design novel munitions or address novel target situations without expensive and time-consuming full-scale testing with relevant system and target characteristics. Enhancing design through numerical studies and modeling could help reduce the extent and duration of full-scale testing if the models have enough fidelity to capture all of the relevant parameters. This can be separated into three distinct problems: that of the penetrator structural and component response, that of the target response, and that of the coupling between the two. This project focuses on enhancing understanding of the target response, specifically granular geomaterials, where the temporal and spatial multi-scale nature of the material controls its response. As part of the overarching goal of developing computational capabilities to predict the performance of conventional earth-penetrating weapons, this project focuses specifically on developing new models and numerical capabilities for modeling sand response in ALE3D. There is general recognition that granular materials behave in a manner that defies conventional continuum approaches which rely on response locality and which degrade in the presence of strong response nonlinearities, localization, and phase gradients. There are many numerical tools available to address parts of the problem. However, to enhance modeling capability, this project is pursuing a bottom-up approach of building constitutive models from higher fidelity, smaller spatial scale simulations (rather than from macro-scale observations of physical behavior as is traditionally employed) that are being augmented to address the unique challenges of mesoscale modeling of dynamically loaded granular materials. Through understanding response and sensitivity at the grain-scale, it is expected that better reduced order representations of response can be formulated at the continuum scale as illustrated in Figure 1 and Figure 2. The final result of this project is to implement such reduced order models in the ALE3D material library for general use.

  17. FIELD TESTING & OPTIMIZATION OF CO2/SAND FRACTURING TECHNOLOGY

    SciTech Connect (OSTI)

    Raymond L. Mazza

    2004-11-30T23:59:59.000Z

    These contract efforts involved the demonstration of a unique liquid free stimulation technology which was, at the beginning of these efforts, in 1993 unavailable in the US. The process had been developed, and patented in Canada in 1981, and held promise for stimulating liquid sensitive reservoirs in the US. The technology differs from that conventionally used in that liquid carbon dioxide (CO{sub 2}), instead of water is the base fluid. The CO{sub 2} is pumped as a liquid and then vaporizes at reservoir conditions, and because no other liquids or chemicals are used, a liquid free fracture is created. The process requires a specialized closed system blender to mix the liquid CO{sub 2} with proppant under pressure. These efforts were funded to consist of up to 21 cost-shared stimulation events. Because of the vagaries of CO{sub 2} supplies, service company support and operator interest only 19 stimulation events were performed in Montana, New Mexico, and Texas. Final reports have been prepared for each of the four demonstration groups, and the specifics of those demonstrations are summarized. A summary of the demonstrations of a novel liquid-free stimulation process which was performed in four groups of ''Candidate Wells'' situated in Crockett Co., TX; San Juan Co., NM; Phillips Co., MT; and Blaine Co., MT. The stimulation process which employs CO{sub 2} as the working fluid and the production responses were compared with those from wells treated with conventional stimulation technologies, primarily N{sub 2} foam, excepting those in Blaine Co., MT where the reservoir pressure is too low to clean up spent stimulation liquids. A total of 19 liquid-free CO{sub 2}/sand stimulations were performed in 16 wells and the production improvements were generally uneconomic.

  18. Fine structure transitions of C+ in collisions with H2

    E-Print Network [OSTI]

    Chu, Shih-I; Dalgarno, A.

    1975-01-01T23:59:59.000Z

    ://scitation.aip.org/content/aip/journal/jcp/62/10?ver=pdfcov Published by the AIP Publishing Articles you may be interested in ?doublet substate specific investigation of rotational and fine structure transitions in collisions of OH with H2 and D2 J. Chem. Phys. 95, 5763 (1991); 10... for Astrophysics, Harvard College Observatory and Smithsonian Astrophysical Observatory, Cambridge, Massachusetts 02138 (Received 7 November 1974) Close-coupling calculations are described of the cross sections for the fine-structure excitation of C...

  19. Relationships of seismic amplitudes and gas content of the Miocene Amos Sand, Mobile Bay area, offshore Alabama

    SciTech Connect (OSTI)

    Reif, L.T. (Mobil Oil Company, New Orleans, LA (United States)); Kinsland, G.L. (Univ. of Southwestern Louisiana, Lafayette, LA (United States))

    1993-09-01T23:59:59.000Z

    Mobil Oil Company has collected three-dimensional (3-D) seismic data over Mary Ann field in the Mobile Bay area, Alabama. Although the survey was designed and collected so as to image the deeper Norphlet Sands, amplitude anomalies in the image of the shallow Miocene Amos Sand are evident. Relationships are developed between the seismic amplitudes and net feet of gas in the Amos Sand at the few existing wells. These relationships are used to predict net feet of gas everywhere in the area of the seismic survey. The result is a contoured map of net feet of gas in the Miocene Amos Sand in Mary Ann field.

  20. Fine tuning of graphene-metal adhesion by surface alloying

    E-Print Network [OSTI]

    Alfè, Dario

    Fine tuning of graphene-metal adhesion by surface alloying D. Alfe`1,2 , M. Pozzo1 , E. Miniussi3 route for governing the interaction between graphene and metal through the selective choice characterization of the properties of graphene on a model PtRu surface alloy on Ru(0001), with a concentration

  1. Science fictions: Comment on Godfrey-Smith Arthur Fine

    E-Print Network [OSTI]

    Fine, Arthur

    Science+Business Media B.V. 2008 Abstract This is a comment on Peter Godfrey-Smith's, ``ModelsScience fictions: Comment on Godfrey-Smith Arthur Fine Published online: 2 December 2008 � Springer in a naturalized and deflationary framework. Keywords Hans Vaihinger Á Models Á Fictions Á Peter Godfrey-Smith Hans

  2. MIXTURES OF FINE-GRAINED MINERALS KAOLINITE AND CARBONATE GRAINS

    E-Print Network [OSTI]

    Palomino, Angelica M.

    MIXTURES OF FINE-GRAINED MINERALS À KAOLINITE AND CARBONATE GRAINS ANGELICA M. PALOMINO 1, *, SUSAN, Georgia 30332-0355, USA Abstract--The behavior of mineral mixtures can be significantly different from properties of the individual minerals, and their ensuing effects on interparticle interactions and fabric

  3. Fine-Grained Power Management Using Process-level Profiling

    E-Print Network [OSTI]

    Shi, Weisong

    . To evaluate energy efficiency, the Green Grid group proposed the definition of power usage effectiveness (PUE between performance and energy consumption, fine-grained methods, such as process- level power management-aware decisions based on these information. In addition, we introduce a power-aware system module called Energy

  4. BFA Handbook THE RuskinSCHOOL OF DRAWING & FINE ART

    E-Print Network [OSTI]

    Oxford, University of

    , giving them a firm understanding of constructing practice and a good grounding in health and safety rulesBFA Handbook 2013-2014 THE RuskinSCHOOL OF DRAWING & FINE ART UNIVERSITY OF OXFORD A working guide to essential facts A set of rules and r An explanation of examination criteria and practice A set of health

  5. Time-Varying Fine-Structure Constant Requires Cosmological Constant

    E-Print Network [OSTI]

    R. W. Kuhne

    1999-08-31T23:59:59.000Z

    Webb et al. presented preliminary evidence for a time-varying fine-structure constant. We show Teller's formula for this variation to be ruled out within the Einstein-de Sitter universe, however, it is compatible with cosmologies which require a large cosmological constant.

  6. My Eyes Are Fine. Why Get an Exam?

    E-Print Network [OSTI]

    ; they might lead you to believe that all you need is new eyeglasses. You can protect your eyesight by having or ophthalmologist will ask about your current and past health, your family's medical history and if you're currentlyMy Eyes Are Fine. Why Get an Exam? By Jonna Jefferis If you're like many people, the idea

  7. Unraveling the Excess Air/Coal Fineness Enigma

    E-Print Network [OSTI]

    Laspe, C. G.

    1983-01-01T23:59:59.000Z

    In the use of powered coal as a boiler fuel, the factors involved in heat loss from unburnt carbon in the ash are but partially understood. More finely pulverized coal particles will result in lower carbon-in-ash losses. On the other hand, the finer...

  8. absorption fine structures: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    absorption fine structures First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Photon interference x-ray...

  9. absorption fine structure: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    absorption fine structure First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Photon interference x-ray...

  10. ROTARY FILTER FINES TESTING FOR SMALL COLUMN ION EXCHANGE

    SciTech Connect (OSTI)

    Herman, D.

    2011-08-03T23:59:59.000Z

    SRNL was requested to quantify the amount of 'fines passage' through the 0.5 micron membranes currently used for the rotary microfilter (RMF). Testing was also completed to determine if there is any additional benefit to utilizing a 0.1 micron filter to reduce the amount of fines that could pass through the filter. Quantifying of the amount of fines that passed through the two sets of membranes that were tested was accomplished by analyzing the filtrate by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) for titanium. Even with preparations to isolate the titanium, all samples returned results of less than the instrument's detection limit of 0.184 mg/L. Test results show that the 0.5 micron filters produced a significantly higher flux while showing a negligible difference in filtrate clarity measured by turbidity. The first targeted deployment of the RMF is with the Small Column Ion Exchange (SCIX) at the Savannah River Site (SRS). SCIX uses crystalline silicotitanate (CST) to sorb cesium to decontaminate a clarified salt solution. The passage of fine particles through the filter membranes in sufficient quantities has the potential to impact the downstream facilities. To determine the amount of fines passage, a contract was established with SpinTek Filtration to operate a 3-disk pilot scale unit with prototypic filter disk and various feeds and two different filter disk membranes. SpinTek evaluated a set of the baseline 0.5 micron filter disks as well as a set of 0.1 micron filter disks to determine the amount of fine particles that would pass the membrane and to determine the flux each set produced. The membrane on both disk sets is manufactured by the Pall Corporation (PMM 050). Each set of disks was run with three feed combinations: prototypically ground CST, CST plus monosodium titanate (MST), and CST, MST, plus Sludge Batch 6 (SB6) simulant. Throughout the testing, samples of the filtrate were collected, measured for turbidity, and sent back to SRNL for analysis to quantify the amount of fines that passed through the membrane. It should be noted that even though ground CST was tested, it will be transferred to the Defense Waste Processing Facility (DWPF) feed tank and is not expected to require filtration.

  11. The extraction of bitumen from western oil sands. Annual report, July 1991--July 1992

    SciTech Connect (OSTI)

    Oblad, A.G.; Bunger, J.W.; Dahlstrom, D.A.; Deo, M.D.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

    1992-08-01T23:59:59.000Z

    The University of Utah tar sand research and development program is concerned with research and development on Utah is extensive oil sands deposits. The program has been intended to develop a scientific and technological base required for eventual commercial recovery of the heavy oils from oil sands and processing these oils to produce synthetic crude oil and other products such as asphalt. The overall program is based on mining the oil sand, processing the mined sand to recover the heavy oils and upgrading them to products. Multiple deposits are being investigated since it is believed that a large scale (approximately 20,000 bbl/day) plant would require the use of resources from more than one deposit. The tasks or projects in the program are organized according to the following classification: Recovery technologies which includes thermal recovery methods, water extraction methods, and solvent extraction methods; upgrading and processing technologies which covers hydrotreating, hydrocracking, and hydropyrolysis; solvent extraction; production of specialty products; and environmental aspects of the production and processing technologies. These tasks are covered in this report.

  12. p=constant compression on loose Hostun sand: The case of an anisotropic response

    E-Print Network [OSTI]

    P. Evesque

    2005-07-08T23:59:59.000Z

    Experimental data from axially symmetric compression test at constant mean pressure p on Hostun sand from Flavigny experiments on loose sands are used to study the validity of an "isotropic" modelling at different densities . It is found that the material response is not isotropic even at small deviatoric stress. As an "isotropic" behaviour is found for compression test at constant volume on the same sand, this new result questions the unicity of the trajectory in the classical phase space of soil mechanics (q,p,v), with q being thed deviatoric stress, v the specific volume. This asks whether the space shall be taken larger than 3d or not. Pacs # : 5.40 ; 45.70 ; 62.20 ; 83.70.Fn

  13. Stand-yield prediction for managed ocala sand pine. Forest Service research paper

    SciTech Connect (OSTI)

    Rockwood, D.L.; Yang, B.; Outcalt, K.W.

    1997-04-01T23:59:59.000Z

    Sand pine is a very important species in Florida, producing significant quantities of fiber. The purpose of this study was to develop the site index and stand-level growth and yield equations managers need to make informed decisions. Data were collected from 35 seeded plots of Ocala sand pine covering a range of site indexes, ages, and densities in 1982-83. These plots were remeasured 5 and 10 years later and the data used to develop growth and yield equations by tree component. Equations for both current and future yields in volume and weight measures are given. These equations gave very good results when tested by comparing actual yields with predicted yields for a second set of 22 sand pine plantations measured in the panhandle area of Florida.

  14. Pullout testing of geogrids in tire shreds and rubber-sand

    SciTech Connect (OSTI)

    Bernal, A. [Geohidra, Caracas (Venezuela); Swan, R.H. Jr. [GeoSyntec Consultants, Atlanta, GA (United States); Salgado, R.; Lovell, C.W. [Purdue Univ., West Lafayette, IN (United States)

    1997-12-31T23:59:59.000Z

    The results of a direct shear and pullout testing program conducted to evaluate the interaction properties of three types of flexible geogrids having 2 cm, 5 cm and 10 cm square apertures within two types of backfill materials are presented. The first backfill material was a 5 cm nominal size tire shred fill and the second backfill material was a rubber-sand mixture consisting of a blend of 5 cm tire shreds and sand. Direct shear testing was conducted using a large direct shear box having plan dimensions of 30 cm by 30 cm and a total depth of 23 cm. Pullout tests were carried out in a large pullout box having plan dimensions of 1.2 m in length by 0.9 m in width and 0.5 m depth. Coefficients of interaction between 0.22 to 0.49 for tire shreds and 0.25 to 0.53 for rubber-sand were calculated.

  15. A correlation of United States tar sand bitumen viscosities with NMR spectroscopic parameters

    SciTech Connect (OSTI)

    Netzel, D.A.; Turner, T.F.

    1989-06-01T23:59:59.000Z

    A method has been developed whereby the viscosity of a tar sand bitumen at any temperature can be calculated from nuclear magnetic resonance parameters. The method is semiempirical but is based upon some fundamental theoretical concepts for molecular mobility and intermolecular interactions. Using this method, the viscosities of three United States tar sand bitumens have been correlated to the weighted average spin-spin relaxation rates for the semiliquid, solidlike mobile, and solidlike rigid phases of the bitumens. The results indicate that bitumens with a high viscosity have a greater amount of solidlike rigid phase and lesser amounts of solidlike mobile and semiliquid phases than do the bitumens with low viscosity. It is also shown that the viscosity of a tar sand bitumen over a 100 degree temperature range can be determined from a single NMR experiment conducted near room temperature. 18 refs., 3 figs., 4 tabs.

  16. A correlation of United States tar sand bitumen viscosities with NMR spectroscopic parameters

    SciTech Connect (OSTI)

    Netzel, D.A.; Turner, T.F. (Western Research Institute, Box 3395, Laramie, WY (US))

    1990-01-01T23:59:59.000Z

    A method has been developed whereby the viscosity of a tar sand bitumen at any temperature can be calculated from nuclear magnetic resonance parameters. The method is semi empirical but is based upon some fundamental theoretical concepts for molecular mobility and intermolecular interactions. Using this method, the viscosities of three United States tar sand bitumens have been correlated to the weighted average spin-spin, relaxation rates for the semiliquid, solidlike mobile, and solidlike rigid phases of the bitumens. The results indicate that bitumens with a high viscosity have a greater amount of solidlike rigid phase and lesser amounts of solidlike mobile and semiliquid phases than do the bitumens with low viscosity. It is also shown that the viscosity of a tar sand bitumen over a 100 degree temperature range can be determined from a single NMR experiment conducted near room temperature.

  17. Holocene stratigraphy of the Alabama inner continental shelf: Influence of shelf sand ridges on determining lithofacies architecture

    SciTech Connect (OSTI)

    Davies, D.J.; Parker, S.J. (Geological Survey of Alabama, Tuscaloosa, AL (United States). Energy and Coastal Geology Div.)

    1993-03-01T23:59:59.000Z

    Surface and subsurface distribution of lithofacies from Holocene sediments of the AL inner continental shelf was determined from a series of 59 vibracores and associated surface sediment grab sediments. Five Holocene lithofacies composed of 12 discrete microfacies were delineated based on grain size, color, sedimentary structures, shell content, and fabric of samples. These lithofacies include: (1) Graded Shelly Sand Lithofacies; (2) Clean Sand Lithofacies; (3) Dirty Sand Lithofacies; (4) Biogenic Sediment Lithofacies; and (5) Muddy Sediment Lithofacies. These represent four major depositional environments: The Shelf Sand Sheet Environment (lithofacies 1 and 2); the Sand Ridge Environment (lithofacies 1, 2, and 3); the Bay/Lagoon Environment (lithofacies 3, 4 and 5); and the Muddy Shelf Environment (lithofacies 5). East of the Main Pass of Mobile Bay, the seafloor is composed of a clean Shelf Sand Sheet with oblique shelf sand ridges; Clean Sand and Graded Shelly Sand are the dominant surface sediment types. Coarse shell beds that grade up to quartz sand units (total thickness 0.1 to 3+m) interpreted as tempestites comprise most of the upper portion of the ridges. West of the Pass, the muddier lithofacies (3 and 5) dominate surface samples. Microfacies at depth represent the early Holocene transgressive systems tract; these include the Muddy Shelf Depositional Environment and the filled estuaries and bays of the flooded Pleistocene fluvial valleys represented by the Bay/Lagoon Depositional Environment. The AL inner shelf provides an excellent model of the variability of sedimentation mode in time and space during deposition of a transgressive systems tract. Development of the palimpsest sand sheet/ridge complex progressed on the eastern shelf due to shut off of sediment influx, westward longshore currents, and episodic incidence of major hurricanes. On the western shelf a patchy distribution of muddier sediments developed from input of floodwaters from Mobile Bay.

  18. Request received (from Norway, regarding e-mail titled "Grandparents Oppose Tar Sands"): Thanks. I have seen them in the news here in Norway as well about the Tar Sands.

    E-Print Network [OSTI]

    Hansen, James E.

    Request received (from Norway, regarding e-mail titled "Grandparents Oppose Tar Sands"): Thanks. I have seen them in the news here in Norway as well about the Tar Sands. Question: When you send us by Anne Dalberg, chair of the Sami Church Council. Norway's First Nation - the Sami - showing solidarity

  19. Oil shale, tar sands, and underground coal gasification. Quarterly progress report, July-September, 1983

    SciTech Connect (OSTI)

    Not Available

    1983-10-28T23:59:59.000Z

    Technical progress made for the second quarter, July 1, 1983 through September 30, 1983 are described for three areas, oil shale, tar sand and underground gasification of coal. The oil shale program is divided into the following tasks: chemistry and physics; retort bed analysis; novel processing methods; and environmental impact mitigation. The tar sand investigation covers: recovery processes; preparation; novel processing methods; and environmental impact mitigation. Underground coal gasification covers: recovery processes; field project evaluation; novel processing methods; and environmental impact mitigation. An executive summary is provided for the three programs. 19 figures, 23 tables.

  20. A pressuremeter method for single piles subjected to cyclic lateral loads in sand

    E-Print Network [OSTI]

    Little, Robert Lewis

    1987-01-01T23:59:59.000Z

    of piles in sand subJected to ~~ cyclic horizontal loads, and (0) the proposed method cannot predict the degradation (or lack of it) of piles in sand subjected to ~~ cyclic horizontal loads because the pr essuremeter is a cyclic test. Zn memory of my... and dedication to his own research served as an inspiration for the author. Mr. Tucker's talent in micr ocomputer pr ogr amming and his vii willingness to share his knowledge were invaluable in the reduction of the pressuremeter data. Finally, the author...

  1. In situ heat treatment of a tar sands formation after drive process treatment

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Stanecki, John (Blanco, TX)

    2010-09-21T23:59:59.000Z

    A method for treating a tar sands formation includes providing a drive fluid to a hydrocarbon containing layer of the tar sands formation to mobilize at least some hydrocarbons in the layer. At least some first hydrocarbons from the layer are produced. Heat is provided to the layer from one or more heaters located in the formation. At least some second hydrocarbons are produced from the layer of the formation. The second hydrocarbons include at least some hydrocarbons that are upgraded compared to the first hydrocarbons produced by using the drive fluid.

  2. Western Gas Sands Project: production histories of the Piceance and Uinta basins of Colorado and Utah

    SciTech Connect (OSTI)

    Anderson, S.; Kohout, J. (comp.)

    1980-11-20T23:59:59.000Z

    Current United States geological tight sand designations in the Piceance and Uinta Basins' Western Gas Sands Project include the Mesaverde Group, Fort Union and Wasatch Formations. Others, such as the Dakota, Cedar Mountain, Morrison and Mancos may eventually be included. Future production from these formations will probably be closely associated with existing trends. Cumulative gas production through December 1979, of the Mesaverde Group, Fort Union and Wasatch Formations in the Piceance and Uinta Basins is less than 275 billion cubic feet. This contrasts dramatically with potential gas in place estimates of 360 trillion cubic feet. If the geology can be fully understood and engineering problems surmounted, significant potential reserves can be exploited.

  3. Characterization of trace gases measured over Alberta oil sands mining operations: 76 speciated C2-C10 volatile organic compounds (VOCs), CO2, CH4, CO, NO, NO2, NOy, O3 and SO2

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    over Alberta oil sands mining operations Soc. , 81(7), 1537–over Alberta oil sands mining operations: 76 speciated C 2 –over Alberta oil sands mining operations Burstyn, I. ,

  4. Fine Tuning for Best-Value Super ESPC Deals Using the Responsibility...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fine Tuning for Best-Value Super ESPC Deals Using the Responsibility Matrix Fine Tuning for Best-Value Super ESPC Deals Using the Responsibility Matrix Fact sheet outlines the...

  5. Reservoir characterization of the upper Merecure and lower Oficina Formations sands in the Leona Este Field, Eastern Venezuela Basin

    E-Print Network [OSTI]

    Flores Millan, Maria Carolina

    2001-01-01T23:59:59.000Z

    The "S5", "T" and "U1" sands, traditionally described as part of the lower section of the "Oficina" Formation, and the "U2" sand, as part of the upper interval of the "Merecure" Formation, contain the largest oil remaining reserves of the Leona Este...

  6. Journal of Coastal Research 20 1 4460 West Palm Beach, Florida Winter 2004 Potential Impacts of Sand Mining Offshore of

    E-Print Network [OSTI]

    Hilton, Eric J.

    of dredging or sand mining, we evaluated the differences in the output of various numerical models run with the natural and hypothetical post-dredging bottom conditions. Fenwick and Isle of Wight Shoals offshore dredging scenarios, a one-time removal of 2 106 m3 of sand from each of two shoals and a cumulative removal

  7. A discrete particle approach to simulate the combined effect of blast and sand impact loading of steel plates

    E-Print Network [OSTI]

    Wadley, Haydn

    A discrete particle approach to simulate the combined effect of blast and sand impact loading March 2011 Keywords: Blast loads Experimental tests Sand ejecta Discrete particles Numerical simulations a b s t r a c t The structural response of a stainless steel plate subjected to the combined blast

  8. Stop on Top: SUSY Parameter Regions, Fine-Tuning Constraints

    E-Print Network [OSTI]

    Demir, Durmus Ali

    2014-01-01T23:59:59.000Z

    We analyze common supersymmetric models in order to determine in what parameter regions with what amount of fine-tuning they are capable of accomodating the LHC-allowed top-stop degeneracy window. The stops must be light enough to enable Higgs naturalness yet heavy enough to induce a 125 GeV Higgs boson mass. These two constraints require the two stops to have a large mass splitting. We find that, compared to the usual neutralino-LSP CMSSM, the NUHM and gravitino-LSP CMSSM models possess relatively wide regions in which the light stop weighs close to the top quark. The fine-tuning involved lies in 10^3-10^4 range.

  9. Development of an Advanced Fine Coal Suspension Dewatering Process

    SciTech Connect (OSTI)

    B. K. Parekh; D. P. Patil

    2008-04-30T23:59:59.000Z

    With the advancement in fine coal cleaning technology, recovery of fine coal (minus 28 mesh) has become an attractive route for the U.S. coal industry. The clean coal recovered using the advanced flotation technology i.e. column flotation, contains on average 20% solids and 80% water, with an average particle size of 35 microns. Fine coal slurry is usually dewatered using a vacuum dewatering technique, providing a material with about 25 to 30 percent moisture. The process developed in this project will improve dewatering of fine (0.6mm) coal slurry to less than 20 percent moisture. Thus, thermal drying of dewatered wet coal will be eliminated. This will provide significant energy savings for the coal industry along with some environmental benefits. A 1% increase in recovery of coal and producing a filter cake material of less than 20 % moisture will amount to energy savings of 1900 trillion Btu/yr/unit. In terms of the amount of coal it will be about 0.8% of the total coal being used in the USA for electric power generation. It is difficult to dewater the fine clean coal slurry to about 20% moisture level using the conventional dewatering techniques. The finer the particle, the larger the surface area and thus, it retains large amounts of moisture on the surface. The coal industry has shown some reluctance in using the advanced coal recovery techniques, because of unavailability of an economical dewatering technique which can provide a product containing less than 20% moisture. The U.S.DOE and Industry has identified the dewatering of coal fines as a high priority problem. The goal of the proposed program is to develop and evaluate a novel two stage dewatering process developed at the University of Kentucky, which involves utilization of two forces, namely, vacuum and pressure for dewatering of fine coal slurries. It has been observed that a fine coal filter cake formed under vacuum has a porous structure with water trapped in the capillaries. When this porous cake is subjected to pressure for a short time, the free water present is released from the filter cake. Laboratory studies have shown that depending on the coal type a filter cake containing about 15% moisture could be obtained using the two-stage filtration technique. It was also noted that applying intermittent breaks in vacuum force during cake formation, which disturbed the cake structure, helped in removing moisture from the filter cakes. In this project a novel approach of cleaning coal using column flotation was also developed. With this approach the feed capacity of the column is increased significantly, and the column was also able to recover coarser size coal which usually gets lost in the process. The outcome of the research benefits the coal industry, utility industry, and indirectly the general public. The benefits can be counted in terms of clean energy, cleaner environment, and lower cost power.

  10. Evaluation of hyperbaric filtration for fine coal dewatering. Final report

    SciTech Connect (OSTI)

    Parekh, B.K. [Univ. of Kentucky, Lexington, KY (United States); Hogg, R. [Pennsylvania State Univ., University Park, PA (United States); Fonseca, A. [CONSOL Inc. (United States)

    1996-08-15T23:59:59.000Z

    The main objectives of the project were to investigate the fundamental aspects of particle-liquid interaction in fine coal dewatering, to conduct laboratory and pilot plant studies on the applicability of hyperbaric filter systems and to develop process conditions for dewatering of fine clean coal to less than 20% moisture. The program consisted of three phases, namely Phase 1 -- Model Development, Phase 2 -- Laboratory Studies, Phase 3 -- Pilot Plant Testing. The Pennsylvania State University led efforts in Phase 1, the University of Kentucky in Phase 2, and CONSOL Inc. in Phase 3 of the program. All three organizations were involved in all the three phases of the program. The Pennsylvania State University developed a theoretical model for hyperbaric filtration systems, whereas the University of Kentucky conducted experimental studies to investigate fundamental aspects of particle-liquid interaction and application of high pressure filter in fine coal dewatering. The optimum filtration conditions identified in Phase 1 and 2 were tested in two of the CONSOL Inc. coal preparation plants using an Andritz Ruthner portable hyperbaric filtration unit.

  11. Global Representation of the Fine Structure Constant and its Variation

    E-Print Network [OSTI]

    Michael Edmund Tobar

    2005-02-06T23:59:59.000Z

    The fine structure constant, alpha, is shown to be proportional to the ratio of the quanta of electric and magnetic flux of force of the electron, and provides a new representation, which is global across all unit systems. Consequently, a variation in alpha was shown to manifest due to a differential change in the fraction of the quanta of electric and magnetic flux of force, while a variation in hcross.c was shown to manifest due to the common mode change. The representation is discussed with respect to the running of the fine structure constant at high energies (small distances), and a putative temporal drift. It is shown that the running of the fine structure constant is due to equal components of electric screening (polarization of vacuum) and magnetic anti-screening (magnetization of vacuum), which cause the perceived quanta of electric charge to increase at small distances, while the magnetic flux quanta decreases. This introduces the concept of the bare magnetic flux quanta as well as the bare electric charge. With regards to temporal drift, it is confirmed that it is impossible to determine which fundamental constant is varying if alpha varies.

  12. Stop on Top: SUSY Parameter Regions, Fine-Tuning Constraints

    E-Print Network [OSTI]

    Durmus Ali Demir; Cem Salih Un

    2014-11-18T23:59:59.000Z

    We analyze minimal supersymmetric models in order to determine in what parameter regions with what amount of fine-tuning they are capable of accomodating the LHC-allowed top-stop degeneracy window. The stops must be light enough to enable Higgs naturalness yet heavy enough to induce a 125 GeV Higgs boson mass. These two constraints imply a large mass splitting. By an elaborate scan of the parameter space, we show that stop-on-top scenario requires at least Delta_CMSSM ~ O(10^4) fine-tuning in the CMSSM. By relaxing the CMSSM parameter space with nonuniversal Higgs masses, we find that Delta_NUHM1 ~ O(10^4). The CMSSM with gravitino LSP works slightly better than the NUHM1 model. Compared to all these, the CMSSM with mu<0 and nonuniversal gauginos yield a much smaller fine-tuning Delta_{mu,g} ~ O(100). Our results show that gaugino sector can pave the road towards a more natural stop-on-top scenario.

  13. LI,HOSPEDALES,SONG,GONG: FINE-GRAINED SKETCH-BASED IMAGE RETRIEVAL 1 Fine-Grained Sketch-Based Image Retrieval

    E-Print Network [OSTI]

    Gong, Shaogang

    LI,HOSPEDALES,SONG,GONG: FINE-GRAINED SKETCH-BASED IMAGE RETRIEVAL 1 Fine-Grained Sketch.hospedales@qmul.ac.uk Yi-Zhe Song yizhe.song@qmul.ac.uk Shaogang Gong s.gong@qmul.ac.uk Queen Mary University of London. It may be distributed unchanged freely in print or electronic forms. #12;2 LI,HOSPEDALES,SONG,GONG: FINE

  14. The performance of the small-angle diffractometer, SAND at IPNS.

    SciTech Connect (OSTI)

    Thiyagarajan, P.

    1998-07-17T23:59:59.000Z

    The time-of-flight small-angle diffractometer SAND has been serving the scientific user community since 1996. One notable feature of SAND is its capability to measure the scattered intensity in a wide Q (4{pi}sin{theta}/{lambda}, where 2{theta} is the scattering angle and {lambda} is the wavelength of the neutrons) range of 0.0035 to 0.5 {angstrom}{sup {minus}1} in a single measurement. The optical alignment system makes it easy to set up the instrument and the sample. The cryogenically cooled MgO filter reduces the fast neutrons over two orders of magnitude, while still transmitting over 70% of the cold neutrons. A drum chopper running at 15 Hz suppresses the delayed neutron background. SAND has a variety of ancillary equipment to control the sample environment. In this paper we describe the features of the SAND instrument, compare its data on a few standard samples with those measured at well established centers in the world, and display two scientific examples which take advantage of measuring data in a wide Q-range in a single measurement. With a new set of tight collimators the Q{sub min} can be lowered to 0.002 {angstrom}{sup {minus}1} and the presently installed high-angle bank of detectors will extend the Q{sub max} to 2 {angstrom}{sup {minus}1}.

  15. Oil shale, tar sands, and underground coal gasification. Quarterly progress report, April-June 1984

    SciTech Connect (OSTI)

    Not Available

    1984-08-15T23:59:59.000Z

    Highlights of progress achieved during the quarter ending June 30, 1984 are summarized. This research involves three resource areas: oil shale, tar sands, and underground gasification of coal. Separate abstracts have been prepared for each section for inclusion in the Energy Database. (DMC)

  16. Nuclear Technology & Canadian Oil Sands: Integration of Nuclear Power with In-Situ Oil Extraction

    E-Print Network [OSTI]

    Nuclear Technology & Canadian Oil Sands: Integration of Nuclear Power with In-Situ Oil Extraction A.E. FINAN, K. MIU, A.C. KADAK Massachusetts Institute of Technology Department of Nuclear Science the technical aspects and the economics of utilizing nuclear reactors to provide the energy needed

  17. In Situ Groundwater Arsenic Removal Using Iron Oxide-Coated Sand 

    E-Print Network [OSTI]

    Yu, Hongxu

    2010-10-12T23:59:59.000Z

    environment for in situ removal of arsenic. A sand filter with a fresh iron oxide coating can treat thousands of pore volumes of water contaminated with dozens of ppb arsenic before the coating needs to be regenerated. Arsenic breakthrough curves through...

  18. Naturally Saline Boreal Communities as Models for Reclamation of Saline Oil Sand Tailings

    E-Print Network [OSTI]

    Macdonald, Ellen

    mining. Key words: boreal forest, community ecology, oil sands, ordination, reclamation, salinity mining have saline soils; yet, they are required to have similar biodiversity and productivity mining, with anti- cipated rates of disturbance of 2,000 ha/yr (CONRAD 1999). Saline tailings are left

  19. The White House & Tar Sands Remarks in front of the White House on 29 August 2011.

    E-Print Network [OSTI]

    Hansen, James E.

    them b. Cheapest because: (1) direct/indirect subsidies, (2) human health costs not paid by fossil fuel Press Club on 29 August 2011. Figure 1. Total conventional fossil fuel emissions (purple) and 50% of unconventional resources (blue) Figure 1 helps make clear why the tar sands and other unconventional fossil fuels

  20. Extensional wave attenuation and velocity in partially saturated sand in the sonic frequency range

    SciTech Connect (OSTI)

    Liu, Z.; Rector, J.W.; Nihei, K.T.; Tomutsa, L.; Myer, L.R.; Nakagawa, S.

    2001-08-10T23:59:59.000Z

    Extensional wave attenuation and velocity measurements on a high permeability Monterey sand were performed over a range of gas saturations for imbibition and degassing conditions. These measurements were conducted using extensional wave pulse propagation and resonance over a 1-9 kHz frequency range for a hydrostatic confining pressure of 8.3 MPa. Analysis of the extensional wave data and the corresponding X-ray CT images of the gas saturation show strong attenuation resulting from the presence of the gas (Q{sub E} dropped from 300 for the dry sand to 30 for the partially-saturated sand), with larger attenuation at a given saturation resulting from heterogeneous gas distributions. The extensional wave velocities are in agreement with Gassmann theory for the test with near-homogeneous gas saturation and with a patchy saturation model for the test with heterogeneous gas saturation. These results show that partially-saturated sands under moderate confining pressure can produce strong intrinsic attenuation for extensional waves.

  1. BIOTIGER, A NATURAL MICROBIAL PRODUCT FOR ENHANCED HYDROCARBON RECOVERY FROM OIL SANDS.

    SciTech Connect (OSTI)

    Brigmon, R; Topher Berry, T; Whitney Jones, W; Charles Milliken, C

    2008-05-27T23:59:59.000Z

    BioTiger{trademark} is a unique microbial consortia that resulted from over 8 years of extensive microbiology screening and characterization of samples collected from a century-old Polish waste lagoon. BioTiger{trademark} shows rapid and complete degradation of aliphatic and aromatic hydrocarbons, produces novel surfactants, is tolerant of both chemical and metal toxicity and shows good activity at temperature and pH extremes. Although originally developed and used by the U.S. Department of Energy for bioremediation of oil-contaminated soils, recent efforts have proven that BioTiger{trademark} can also be used to increase hydrocarbon recovery from oil sands. This enhanced ex situ oil recovery process utilizes BioTiger{trademark} to optimize bitumen separation. A floatation test protocol with oil sands from Ft. McMurray, Canada was used for the BioTiger{trademark} evaluation. A comparison of hot water extraction/floatation test of the oil sands performed with BioTiger{trademark} demonstrated a 50% improvement in separation as measured by gravimetric analysis in 4 h and a five-fold increase at 25 hr. Since BioTiger{trademark} performs well at high temperatures and process engineering can enhance and sustain metabolic activity, it can be applied to enhance recovery of hydrocarbons from oil sands or other complex recalcitrant matrices.

  2. Mineralogical and chemical variability of fluvial sediments 1. Bedload sand (GangaBrahmaputra, Bangladesh)

    E-Print Network [OSTI]

    Najman, Yani

    Mineralogical and chemical variability of fluvial sediments 1. Bedload sand (Ganga textural, petrographical, mineralogical and chemical data, and in the quantitative description and modeling of relationships among mineralogical and chemical variables for each sample and each grain-size class in each

  3. Reliability of Laser Welding Process for ZE41A-T5 Magnesium Alloy Sand Castings

    E-Print Network [OSTI]

    Medraj, Mamoun

    Reliability of Laser Welding Process for ZE41A-T5 Magnesium Alloy Sand Castings Haider Al-Kazzaz1, National Research Council Canada, Montreal, Canada Laser welding is a promising joining method for magnesium alloys. The process reliability of 2-mm ZE41A-T5 butt joints welded by a 4 kW Nd:YAG laser

  4. Geospatial analysis of a coastal sand dune field evolution: Jockey's Ridge, North Carolina

    E-Print Network [OSTI]

    Mitasova, Helena

    Geospatial analysis of a coastal sand dune field evolution: Jockey's Ridge, North Carolina Helena, geospatial analysis, feature extraction, and quantification of change. These techniques were applied requires in-depth understanding of their evolution. Modern geospatial technologies such as lidar, real time

  5. Production and Pressure Decline Curves for Wet Gas Sands With Closed Outer Boundaries

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    . SPE SPE 23442 Production and Pressure Decline Curves for Wet Gas Sands With Closed Outer, Richardson, TX 7S0834S36 U.5A. Telex, 730989 SPEDAL. ABSTRACT A family of pressure and production decline as gas reservoirs which produce substan- tial amounts of water together with ~as. Production of water

  6. Norway, Canada, the United States, and the Tar Sands James Hansen

    E-Print Network [OSTI]

    Hansen, James E.

    Norway, Canada, the United States, and the Tar Sands 9 May 2013 James Hansen Today 36 Norwegian development, given the fact that Norway saves much of its oil earnings for future generations and given the fact that Norway is not likely among the nations that will suffer most from climate change. I wonder

  7. Traffic Impact Study for UMore Park Sand and Gravel Resources Project

    E-Print Network [OSTI]

    Netoff, Theoden

    Traffic Impact Study for UMore Park Sand and Gravel Resources Project City of Rosemount and Empire Figure 13 Existing Lane Geometry and Intersection Control Figure 14 Mitigation Measures for 2011 and 2030 No Build Conditions Figure 15 2011 Build Initial Lane Geometry and Intersection Control Figure 16 2030

  8. Evolution of seismic velocities in heavy oil sand reservoirs during thermal recovery process

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Evolution of seismic velocities in heavy oil sand reservoirs during thermal recovery process localiser la chambre à vapeur. INTRODUCTION [1] Huge quantities of heavy oils (heavy oil, extra heavy oil. Larribau 64018 Pau Cedex, France Oil and Gas Science and Technology 2012, 67 (6), 1029-1039, doi:10

  9. Abstract.-Kelp bass, Paralabrax clathratus, and barred sand bass, P.

    E-Print Network [OSTI]

    sedentary fish which, in con- trast to kelp bass, are rarely found more than 3 m above the substra- tum472 Abstract.-Kelp bass, Paralabrax clathratus, and barred sand bass, P. nebulifer. are major, have shown that kelp bass prima- rily recruit betweenAugust and Decem- ber. In general, both kelp bass

  10. Integration of nuclear power with oil sands extraction projects in Canada

    E-Print Network [OSTI]

    Finan, Ashley (Ashley E.)

    2007-01-01T23:59:59.000Z

    One of the largest oil reserves in the world is not in the Middle East or in Alaska, but in Canada. This fuel exists in the form of bitumen in Alberta's oil sands. While it takes a tremendous amount of energy to recover ...

  11. Numerical simulation of turbulent, oscillatory flow over sand ripples Brian C. Barr and Donald N. Slinn

    E-Print Network [OSTI]

    Slinn, Donald

    an improved understanding of oscillatory flow over sand ripples. [3] The wave bottom boundary layer (WBBL the ripple crest produce a continuously turbulent boundary layer, differing from results obtained processes; KEYWORDS: turbulent boundary layer, drag coefficient, dissipation rate Citation: Barr, B. C., D

  12. Numerical Simulations of the Wave Bottom Boundary Layer over Sand Ripples

    E-Print Network [OSTI]

    Slinn, Donald

    locations. Under conditions of oscillatory potential flow external to the boundary layer causedNumerical Simulations of the Wave Bottom Boundary Layer over Sand Ripples by Thomas Pierro A Thesis boundary layer are believed to play a major role in the re-suspension and transport of sediment, as well

  13. Light extraction from organic light-emitting diodes for lighting applications by sand-blasting

    E-Print Network [OSTI]

    Light extraction from organic light-emitting diodes for lighting applications by sand@ust.hk Abstract: Light extraction from organic light-emitting diodes (OLEDs) by scattering the light is one of the effective methods for large-area lighting applications. In this paper, we present a very simple and cost

  14. Air and water flows in a large sand box with a two-layer aquifer system

    E-Print Network [OSTI]

    Jiao, Jiu Jimmy

    Air and water flows in a large sand box with a two-layer aquifer system Xingxing Kuang & Jiu Jimmy negative air pressure can be generated in the vadose zone during pumping. The negative air pressure. The initial water-table depth has a significant effect on the generated negative air pressure. The shallower

  15. Production of Natural Gas and Fluid Flow in Tight Sand Reservoirs

    SciTech Connect (OSTI)

    Maria Cecilia Bravo; Mariano Gurfinkel

    2005-06-30T23:59:59.000Z

    This document reports progress of this research effort in identifying possible relationships and defining dependencies between macroscopic reservoir parameters strongly affected by microscopic flow dynamics and production well performance in tight gas sand reservoirs. Based on a critical review of the available literature, a better understanding of the main weaknesses of the current state of the art of modeling and simulation for tight sand reservoirs has been reached. Progress has been made in the development and implementation of a simple reservoir simulator that is still able to overcome some of the deficiencies detected. The simulator will be used to quantify the impact of microscopic phenomena in the macroscopic behavior of tight sand gas reservoirs. Phenomena such as, Knudsen diffusion, electro-kinetic effects, ordinary diffusion mechanisms and water vaporization are being considered as part of this study. To date, the adequate modeling of gas slippage in porous media has been determined to be of great relevance in order to explain unexpected fluid flow behavior in tight sand reservoirs.

  16. Production of Natural Gas and Fluid Flow in Tight Sand Reservoirs

    SciTech Connect (OSTI)

    Maria Cecilia Bravo

    2006-06-30T23:59:59.000Z

    This document reports progress of this research effort in identifying relationships and defining dependencies between macroscopic reservoir parameters strongly affected by microscopic flow dynamics and production well performance in tight gas sand reservoirs. These dependencies are investigated by identifying the main transport mechanisms at the pore scale that should affect fluids flow at the reservoir scale. A critical review of commercial reservoir simulators, used to predict tight sand gas reservoir, revealed that many are poor when used to model fluid flow through tight reservoirs. Conventional simulators ignore altogether or model incorrectly certain phenomena such as, Knudsen diffusion, electro-kinetic effects, ordinary diffusion mechanisms and water vaporization. We studied the effect of Knudsen's number in Klinkenberg's equation and evaluated the effect of different flow regimes on Klinkenberg's parameter b. We developed a model capable of explaining the pressure dependence of this parameter that has been experimentally observed, but not explained in the conventional formalisms. We demonstrated the relevance of this, so far ignored effect, in tight sands reservoir modeling. A 2-D numerical simulator based on equations that capture the above mentioned phenomena was developed. Dynamic implications of new equations are comprehensively discussed in our work and their relative contribution to the flow rate is evaluated. We performed several simulation sensitivity studies that evidenced that, in general terms, our formalism should be implemented in order to get more reliable tight sands gas reservoirs' predictions.

  17. Highway 280 North or South Take the Sand Hill Road exit, head east

    E-Print Network [OSTI]

    Ford, James

    Highway 280 North or South · Take the Sand Hill Road exit, head east · Turn right on Stock Farm for "all" below From Bayshore US Highway 101 NorthFrom Bayshore US Highway 101 North or South · Take · Turn left on Stock Farm Road LKSC ParkingTurn left on Stock Farm Road · Make the next lefthand turn

  18. Importing Abstract Spatial Data into the SAND Database System Hanan Samet

    E-Print Network [OSTI]

    Samet, Hanan

    Importing Abstract Spatial Data into the SAND Database System Hanan Samet Frantisek Brabec Jagan-like interface that allows data to be manually edited before imported into the database. This approach. We present a system that makes a centrally stored spatial database available to off-site users

  19. Multicomponent Transport of Sulfate in a Goethite-Silica Sand System

    E-Print Network [OSTI]

    Sparks, Donald L.

    Multicomponent Transport of Sulfate in a Goethite-Silica Sand System at Variable pH and Ionic of protons and sulfate on goethite and silica were used in combination with a one-dimensional mass-transport model to predict the transport of sulfate at variable pH and ionic strength in a goethite-silica system

  20. Optimal trace selection for AVA processing of shale-sand reservoirs Thomas Guest1

    E-Print Network [OSTI]

    Optimal trace selection for AVA processing of shale-sand reservoirs Thomas Guest1 and Andrew Curtis1 ABSTRACT When processing data, a principal aim is to maximize in- formation inferred from a data the target reservoir. Optimal selections change as prior knowledge of rock param- eters and reservoir fluid

  1. Microstructural characterization of a Canadian oil sand D.H., Delage2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    in dense areas porosity values compatible with in-situ log data and macroscopic laboratory determinations reservoirs in Western Canada and Eastern Venezuela basins. The laboratory characterisation of oil sands at depths ranging from 0 to 700 m (Butler 1997). This formation is underlain by shales and limestones

  2. General syllabus for doctoral (third cycle) education in the arts at the University of Gothenburg Fine Arts

    E-Print Network [OSTI]

    Johannesson, Henrik

    and understanding For the degree of Licentiate of the Arts in Fine Arts and the degree of Doctor of the Arts in Fine and skills For the degree of Licentiate of the Arts in Fine Arts and the degree of Doctor of the Arts in Fine and approach For the degree of Licentiate of the Arts in Fine Arts and the degree of Doctor of the Arts in Fine

  3. EMPLOYMENT FACTS: THE KEYSTONE XL PIPELINE Under the forest in northern Alberta, Canada lie the world's largest deposits of so-called "tar sands,"

    E-Print Network [OSTI]

    Danforth, Bryan Nicholas

    holding ponds of toxic sludge. Production of this oil is increasing and a growing amount of it is already the world's largest deposits of so-called "tar sands," sand mixed with thick, tar-like oil. To produce one barrel of heavy crude oil from tar sands requires strip mining the forest, extracting four tons of earth

  4. Creating a new, sustainable community on the University's 5,000-acre property U seeks public comment on Draft EIS for proposed UMore Park Sand and Gravel

    E-Print Network [OSTI]

    Netoff, Theoden

    comment on Draft EIS for proposed UMore Park Sand and Gravel Resources Project, open house scheduled Impact Statement (EIS) for its proposed Sand & Gravel Resources Project on approximately 1,722 acres approved the Draft Environmental Impact Statement (EIS) for the proposed UMore Park Sand and Gravel

  5. Topological Quantization in Units of the Fine Structure Constant

    SciTech Connect (OSTI)

    Maciejko, Joseph; /Stanford U., Phys. Dept. /Stanford U., Materials Sci. Dept. /SLAC; Qi, Xiao-Liang; /Station Q, UCSB /Stanford U., Phys. Dept. /Stanford U., Materials Sci. Dept. /SLAC; Drew, H.Dennis; /Maryland U.; Zhang, Shou-Cheng; /Stanford U., Phys. Dept. /Stanford U., Materials Sci. Dept. /SLAC

    2011-11-11T23:59:59.000Z

    Fundamental topological phenomena in condensed matter physics are associated with a quantized electromagnetic response in units of fundamental constants. Recently, it has been predicted theoretically that the time-reversal invariant topological insulator in three dimensions exhibits a topological magnetoelectric effect quantized in units of the fine structure constant {alpha} = e{sup 2}/{h_bar}c. In this Letter, we propose an optical experiment to directly measure this topological quantization phenomenon, independent of material details. Our proposal also provides a way to measure the half-quantized Hall conductances on the two surfaces of the topological insulator independently of each other.

  6. Process for preparing fine grain titanium carbide powder

    DOE Patents [OSTI]

    Janney, M.A.

    1985-03-12T23:59:59.000Z

    A method for preparing finely divided titanium carbide powder in which an organotitanate is reacted with a carbon precursor polymer to provide an admixture of the titanium and the polymer at a molecular level due to a crosslinking reaction between the organotitanate and the polymer. The resulting gel is dried, pyrolyzed to drive off volatile components and provide carbon. The resulting solids are then heated at an elevated temperature to convert the titanium and carbon to high-purity titanium carbide powder in a submicron size range.

  7. Fine structure of coupled optical modes in photonic molecules

    SciTech Connect (OSTI)

    Rakovich, Y.P.; Donegan, J.F.; Gerlach, M.; Bradley, A.L. [Semiconductor Photonics Group, Department of Physics, Trinity College, Dublin 2 (Ireland); Connolly, T.M.; Boland, J.J. [Department of Chemistry, Trinity College, Dublin 2 (Ireland); Gaponik, N. [Institute of Physical Chemistry, University of Hamburg, 20146 Hamburg (Germany); Rogach, A. [Photonics and Optoelectronics Group, Physics Department and CeNS, Ludwig-Maximilians Universitaet Muenchen, 80799 Munich (Germany)

    2004-11-01T23:59:59.000Z

    We report on the coherent coupling of whispering gallery modes (WGM) in a photonic molecule formed from two melamine-formaldehyde spherical microcavities with a thin shell of CdTe nanocrystals. Utilizing a microporous polymer structure to orient the photonic molecule, we have excited the photonic molecule both on and off axis. This controllable geometry has allowed the observation of an off-axis fine structure that consists of very sharp peaks resulting from the removal of the WGM degeneracy with respect to the azimuthal quantum number m. The mode splittings are in very good agreement with theory.

  8. Fine-structure constant constraints on Bekenstein-type models

    E-Print Network [OSTI]

    P. M. M. Leal; C. J. A. P. Martins; L. B. Ventura

    2014-07-15T23:59:59.000Z

    Astrophysical tests of the stability of dimensionless fundamental couplings, such as the fine-structure constant $\\alpha$, are an area of much increased recent activity, following some indications of possible spacetime variations at the few parts per million level. Here we obtain updated constraints on the Bekenstein-Sandvik-Barrow-Magueijo model, which is arguably the simplest model allowing for $\\alpha$ variations. Recent accurate spectroscopic measurements allow us to improve previous constraints by about an order of magnitude. We briefly comment on the dependence of the results on the data sample, as well as on the improvements expected from future facilities.

  9. Radial distribution function in x-ray-absorption fine structure

    SciTech Connect (OSTI)

    Stern, E.A.; Ma, Y.; Hanske-Petitpierre, O. (Department of Physics FM-15, University of Washington, Seattle, Washington 98195 (United States)); Bouldin, C.E. (National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States))

    1992-07-01T23:59:59.000Z

    It has been argued that, in systems that have disorder too large to be described by a Gaussian, x-ray-absorption fine-structure (XAFS) spectroscopy alone cannot define the radial distribution function (RDF) because of the lack of low-{ital k} data. We show that the low-{ital k} data can, under certain conditions, be reconstructed using cumulant expansions, which give the correct functional form. This allows XAFS to determine unbiased single-shell RDF's in cases of moderate disorder, without assuming a particular model for the RDF. Some examples are given to illustrate the technique and its limitations.

  10. Fine, New York: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump to:ar-80m.pdfFillmore County, Minnesota: EnergyFinanzasFine, New York:

  11. Hydrogen Atom and Time Variation of Fine-Structure Constant

    E-Print Network [OSTI]

    Mu-Lin Yan

    2009-11-21T23:59:59.000Z

    In this paper, we have solved the de Sitter special relativistic ($\\mathcal{SR}_{cR}$-) Dirac equation of hydrogen in the earth-QSO(quasar) framework reference by means of the adiabatic approach. The aspects of geometry effects of de Sitter space-time described by Beltrami metric are explored and taken into account. It is found that the $\\mathcal{SR}_{cR}$-Dirac equation of hydrogen is a time dependent quantum Hamiltonian system. We provide an explicit calculation to justify the adiabatic approach in dealing with this time-dependent system. Since the radius of de Sitter sphere $R$ is cosmologically large, the evolution of the system is very slow so that the adiabatic approximation legitimately works with high accuracy. We conclude that the electromagnetic fine-structure constant, the electron mass and the Planck constant are time variations. This prediction of fine-structure constant is consistent with the presently available observation data. For confirming it further, experiments/observations are required.

  12. Solar Radio Bursts with Spectral Fine Structures in Preflares

    E-Print Network [OSTI]

    Zhang, Yin; Karlický, Marian; Mészárosová, Hana; Huang, Jing; Tan, Chengming; Simões, Paulo

    2014-01-01T23:59:59.000Z

    A good observation of preflare activities is important for us to understand the origin and triggering mechanism of solar flares, and to predict the occurrence of solar flares. This work presents the characteristics of microwave spectral fine structures as preflare activities of four solar flares observed by Ond\\v{r}ejov radio spectrograph in the frequency range of 0.8--2.0 GHz. We found that these microwave bursts which occurred 1--4 minutes before the onset of flares have spectral fine structures with relatively weak intensities and very short timescales. They include microwave quasi-periodic pulsations (QPP) with very short period of 0.1-0.3 s and dot bursts with millisecond timescales and narrow frequency bandwidths. Accompanying these microwave bursts, there are filament motions, plasma ejection or loop brightening on the EUV imaging observations and non-thermal hard X-ray emission enhancements observed by RHESSI. These facts may reveal certain independent non-thermal energy releasing processes and partic...

  13. Recovery of coal fines from preparation plant effluents

    SciTech Connect (OSTI)

    Choudhry, V. (Praxis Engineers, Inc., Milpitas, CA (USA)); Khan, L. (Illinois State Geological Survey, Champaign, IL (USA)); Yang, D. (Michigan Technological Univ., Houghton, MI (USA))

    1990-01-01T23:59:59.000Z

    The objectives of this project are to test and demonstrate the feasibility of recovering the coal fines which are currently disposed of with plant effluent streams in order to produce a fine clean coal product. This product can then be blended with the coarse clean coal from the preparation plant. Recovery of carbonaceous material from the effluent streams will be effected by means of Michigan Technological University's static tube flotation process in conjunction with pyrite depressants. This process has been successfully demonstrated on a number of coals to reject 85% of the pyritic sulfur and recover 90% of the Btu value. The process parameters will be modified to accept preparation plant effluents in order to produce a low-ash, low-sulfur clean coal product that at a minimum is compatible with the quality requirements of the plant clean coal. This report covers the first quarter of the project. The main activities during this period were the drafting of a project work plan and the collection of four coal preparation plant effluent samples for testing. Effluent slurry samples were collected from four operating preparation plants in Illinois and shipped to Michigan Technological University for experimental work.

  14. Postmortem analysis of sand grain crushing from pile interface using X-ray tomography

    SciTech Connect (OSTI)

    Silva, I. Matias; Combe, Gaeel; Foray, Pierre; Flin, Frederic; Lesaffre, Bernard [Universite de Grenoble, 3SR Lab, UMR 5521 Grenoble-INP, UJF-Grenoble 1, CNRS, Grenoble, France CEN, CNRM-GAME UMR 3589, Meteo France - CNRS, Grenoble (France)

    2013-06-18T23:59:59.000Z

    Pile foundations of offshore platforms, wind and water turbines are typically subjected to a variety of cyclic loading paths due to their complex environment. While many studies focus on global pile behaviour, the soil-pile interface is explored here by a micromechanical study of the soil layer in contact with the pile surface. This work is devoted to the analysis of frozen post-mortem silica sand samples recovered at the pile interface following installation and cyclic loading tests in a calibration chamber using x-ray tomography. An experimental procedure developed for three dimensional (3D) snow imaging was adapted for the recovery of the in-situ sand samples to preserve their structure during tomography scans. 3D images at a pixel size of 7 {mu}m were then obtained using a cryogenic cell. Results confirm the presence of a shear band at the pile surface as well as void ratios changes in the direction of the pile's radius.

  15. Resin-coated sand slurry pack gas deliverabilities: Field and laboratory results

    SciTech Connect (OSTI)

    Wilson, B.; Nelson, C.; Stadleman, J.

    1983-10-01T23:59:59.000Z

    Although through-tubing resin-coated sand slurry packs (RCSSP's) are significantly less expensive than conventional gravel packs, they have not been widely used as a sand control completion technique. This low usage is mainly due to two inherent problems. The first is the high risk of localized pack failure in the perforation tunnels when the RCSSP casing plug is milled out. The second problem is the difficulty associated with predicting flow rates (and therefore economics) of RCSSP completed wells, especially if the casing plug is not milled out. This paper presents a modified velocity coefficient correlation for gas turbulence, an innovative RCSSP completion configuration with an associated simulation technique, and supporting field results that demonstrate an expanded application for RCSSP's in the area of gas well through-tubing plugbacks where, until recently, their general application was thought to be uneconomical.

  16. Method of producing drive fluid in situ in tar sands formations

    DOE Patents [OSTI]

    Mudunuri, Ramesh Raju (Houston, TX); Jaiswal, Namit (Houston, TX); Vinegar, Harold J. (Bellaire, TX); Karanikas, John Michael (Houston, TX)

    2010-03-23T23:59:59.000Z

    Methods of treating a tar sands formation are described herein. Methods for treating a tar sands may include providing heat to at least part of a hydrocarbon layer in the formation from one or more heaters located in the formation. The heat may be allowed to transfer from the heaters to at least a portion of the formation such that a drive fluid is produced in situ in the formation. The drive fluid may move at least some mobilized, visbroken, and/or pyrolyzed hydrocarbons from a first portion of the formation to a second portion of the formation. At least some of the mobilized, visbroken, and/or pyrolyzed hydrocarbons may be produced from the formation.

  17. Methane Hydrate Formation and Dissociation in a PartiallySaturated Core-Scale Sand Sample

    SciTech Connect (OSTI)

    Kneafsey, Timothy J.; Tomutsa, Liviu; Moridis, George J.; Seol,Yongkoo; Freifeld, Barry M.; Taylor, Charles E.; Gupta, Arvind

    2005-11-03T23:59:59.000Z

    We performed a sequence of tests on a partiallywater-saturated sand sample contained in an x-ray transparent aluminumpressure vessel that is conducive to x-ray computed tomography (CT)observation. These tests were performed to gather data for estimation ofthermal properties of the sand/water/gas system and thesand/hydrate/water/gas systems, as well as data to evaluate the kineticnature of hydrate dissociation. The tests included mild thermalperturbations for the estimation of the thermal properties of thesand/water/gas system, hydrate formation, thermal perturbations withhydrate in the stability zone, hydrate dissociation through thermalstimulation, additional hydrate formation, and hydrate dissociationthrough depressurization with thermal stimulation. Density changesthroughout the sample were observed as a result of hydrate formation anddissociation, and these processes induced capillary pressure changes thataltered local water saturation.

  18. Advanced secondary recovery project for the Sooner D Sand Unit, Weld County, Colorado: Final report

    SciTech Connect (OSTI)

    Sippel, M.A.; Cammon, T.J.

    1986-06-01T23:59:59.000Z

    The objective of this project was to increase production at the Sooner D Sand Unit through geologically targeted infill drilling and improved reservoir management of waterflood operations. The Sooner D Sand Unit demonstration project should be an example for other operators to follow for reservoir characterization and exploitation methodologies to increase production by waterflood from the Cretaceous D Sandstone in the Denver-Julesburg (D-J) Basin. This project involved multi-disciplinary reservoir characterization using high-density 3D seismic, detailed stratigraphy and reservoir simulation studies. Infill drilling, water-injection conversion and re-completing some wells to add short-radius laterals were based on the results of the reservoir characterization studies. Production response were evaluated using reservoir simulation and production tests. Technology transfer utilized workshops, presentations and technical papers which emphasized the economic advantages of implementing the demonstrated technologies.

  19. Wave-formed sand ripples at Duck, North Carolina Daniel M. Hanes, Vadim Alymov, and Yeon S. Chang

    E-Print Network [OSTI]

    Kirby, James T.

    Wave-formed sand ripples at Duck, North Carolina Daniel M. Hanes, Vadim Alymov, and Yeon S. Chang], Osborne and Vincent [1993], Vincent and Osborne [1993], Hay and Wilson [1994], Wheatcroft [1994], Thornton

  20. HYDROLOGY AND EROSION IMPACTS OF MINING DERIVED COASTAL SAND DUNES, C H ~ A R A LBAY, CHILE

    E-Print Network [OSTI]

    HYDROLOGY AND EROSION IMPACTS OF MINING DERIVED COASTAL SAND DUNES, C H ~ A R A LBAY, CHILE Daniel, nitrates, iodine, and lithium. Some of the gold and silverandallofthemolybdenumareproducedasby- products

  1. 509Currey & Poulin--Parasites and sand hopper burrowing Do parasites affect burrowing depth and habitat choice of

    E-Print Network [OSTI]

    Poulin, Robert

    1990). through their supralittoral detritivory, feeding on stranded kelp and prodigious burrowing activity, they facilitate the reincorporation of nutrients upon which sediment bacteria and meiofauna rely (Brown 2001). Sand hoppers are primarily nocturnal, burrowing beneath stranded kelp during the day

  2. Sjldne fugle i Danmark og Grnland i 2005 OLE AMSTRUP, ALEX SAND FRICH, TIM HESSELBALLE HANSEN, HENRIK HAANING NIELSEN,

    E-Print Network [OSTI]

    Thorup, Kasper

    Sjældne fugle i Danmark og Grønland i 2005 OLE AMSTRUP, ALEX SAND FRICH, TIM HESSELBALLE HANSEN færdigbehandlede sager fra Danmark, heraf 141 fra 2005. Heri ind- går 8 sager, som SU har behandlet på opfordring

  3. Ecological Responses to Hydrogeomorphic Fluctuations in a Sand Bed Prairie River: River Complexity, Habitat Availability, and Benthic Invertebrates

    E-Print Network [OSTI]

    O'Neill, Brian James

    2010-04-02T23:59:59.000Z

    Rivers with stochastic precipitation have fauna that overcome unique challenges. Organisms surmount these challenges by using refugia. Research was conducted on the sand bed Kansas River (Kaw). I (a) quantified how the hydrology affects the Kaw...

  4. Composition of modern sand from the Sierra Nevada, California, USA: Implications for actualistic petrofacies of continental-margin magmatic arcs

    E-Print Network [OSTI]

    Ingersoll, Raymond V.; Eastmond, Daniel J.

    2007-01-01T23:59:59.000Z

    modern and ancient source rocks: Geology, v. 18, p. 733–736.sand composition and source-rock type, and the secondaryrock types, including Paleozoic and Mesozoic metamorphic terranes, and Cenozoic volcanic cover, is a source

  5. AIAA paper AIAA-2009-2249, SAND Report: 2008-5360A American Institute of Aeronautics and Astronautics

    E-Print Network [OSTI]

    AIAA paper AIAA-2009-2249, SAND Report: 2008-5360A American Institute of Aeronautics, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security

  6. Tar sand extraction by steam stimulation and steam drive: measurement of physical properties

    SciTech Connect (OSTI)

    Linberg, W.R.

    1980-09-10T23:59:59.000Z

    The measurement of the following thermophysical properties of Utah tar sands is in progress: thermal conductivity, specific heat relative permeability, and viscosity (of the recovered bitumen). During the report period (October 1, 1978 to November 1, 1979), experimental procedures have been developed and a basic data set has been measured. Additionally, standard core analysis has been performed for four drill sites in the Asphalt Ridge, Utah area.

  7. Depositional environment of upper cretaceous Lewis sandstones, Sand Wash Basin, Colorado 

    E-Print Network [OSTI]

    Reinarts, Mary Susan

    1981-01-01T23:59:59.000Z

    areas, Moffat County, Colorado. Structure contours are top of Mesaverde. Contour interval is 1, 000 ft ( 305 m). Modified from Whi tley (1962) Generalized subsurface section of the Upper Cretaceous formations in the Sand Wash basin depicting gross... Correlation section parallel to depositional dip, North Craig field area, showing inclined time- stratigraphic units in the Lewis shale which con- tain thick sandstone intervals. Location of section shown in Fig. 23 Strike correlation section, North Craig...

  8. Quantitative Methods for Reservoir Characterization and Improved Recovery: Application to Heavy Oil Sands

    SciTech Connect (OSTI)

    Castle, James W.; Molz, Fred J.; Brame, Scott; Current, Caitlin J.

    2003-02-07T23:59:59.000Z

    Improved prediction of interwell reservoir heterogeneity was needed to increase productivity and to reduce recovery cost for California's heavy oil sands, which contain approximately 2.3 billion barrels of remaining reserves in the Temblor Formation and in other formations of the San Joaquin Valley. This investigation involved application of advanced analytical property-distribution methods conditioned to continuous outcrop control for improved reservoir characterization and simulation.

  9. Quantitative Methods for Reservoir Characterization and Improved Recovery: Application to Heavy Oil Sands

    SciTech Connect (OSTI)

    Castle, James W.; Molz, Fred J.

    2003-02-07T23:59:59.000Z

    Improved prediction of interwell reservoir heterogeneity is needed to increase productivity and to reduce recovery cost for California's heavy oil sands, which contain approximately 2.3 billion barrels of remaining reserves in the Temblor Formation and in other formations of the San Joaquin Valley. This investigation involved application of advanced analytical property-distribution methods conditioned to continuous outcrop control for improved reservoir characterization and simulation.

  10. Unconventional gas resources. [Eastern Gas Shales, Western Gas Sands, Coalbed Methane, Methane from Geopressured Systems

    SciTech Connect (OSTI)

    Komar, C.A. (ed.)

    1980-01-01T23:59:59.000Z

    This document describes the program goals, research activities, and the role of the Federal Government in a strategic plan to reduce the uncertainties surrounding the reserve potential of the unconventional gas resources, namely, the Eastern Gas Shales, the Western Gas Sands, Coalbed Methane, and methane from Geopressured Aquifers. The intent is to provide a concise overview of the program and to identify the technical activities that must be completed in the successful achievement of the objectives.

  11. Western Gas Sands Project status report, 1 February-29 February 1980

    SciTech Connect (OSTI)

    Not Available

    1980-01-01T23:59:59.000Z

    This edition of the WGSP Status Report summarizes the progress during February 1980, of the government-sponsored projects directed toward increasing gas production from low-permeability gas sands of the western United States. The National Laboratories and Energy Technology Centers continued research and experiments toward enhanced gas recovery. The field test and demonstration program continued with various projects, including test data collection by the DOE Well Test Facility at CIG's Miller No. 1 site.

  12. Investigation of tar sand and heavy oil deposits of Wyoming for underground coal gasification applications

    SciTech Connect (OSTI)

    Trudell, L.G.

    1985-02-01T23:59:59.000Z

    A literature review was conducted to identify and evaluate tar sand and heavy oil deposits of Wyoming which are potentially suitable for in situ processing with process heat or combustible gas from underground coal gasification (UCG). The investigation was undertaken as part of a project to develop novel concepts for expanding the role of UCG in maximizing energy recovery from coal deposits. Preliminary evaluations indicate six surface deposits and three shallow heavy oil fields are within 5 miles of coal deposits, the maximum distance judged to be feasible for UCG applications. A tar sand or heavy oil deposit in the northeast Washakie Basin is less than 250 feet above a zone of four coal seams suitable for UCG, and another deposit near Riverton appears to be interbedded with coal. Three shallow light oil fields found to be within 5 miles of coal may be amenable to application of UCG technology for enhanced oil recovery. Sufficient data are not available for estimating the size of Wyoming's tar sand and heavy oil resource which is suitable for UCG development. Additional investigations are recommended to more fully characterize promising deposits and to assess the potential resource for UCG applications. 54 refs., 10 figs., 2 tabs.

  13. Global Sea Level Stabilization-Sand Dune Fixation: A Solar-powered Sahara Seawater Textile Pipeline

    E-Print Network [OSTI]

    Viorel Badescu; Richard B. Cathcart; Alexander A. Bolonkin

    2007-07-21T23:59:59.000Z

    Could anthropogenic saturation with pumped seawater of the porous ground of active sand dune fields in major deserts (e.g., the westernmost Sahara) cause a beneficial reduction of global sea level? Seawater extraction from the ocean, and its deposition on deserted sand dune fields in Mauritania and elsewhere via a Solar-powered Seawater Textile Pipeline (SSTP) can thwart the postulated future global sea level. Thus, Macro-engineering offers an additional cure for anticipated coastal change, driven by global sea level rise, that could supplement, or substitute for (1) stabilizing the shoreline with costly defensive public works (armoring macroprojects) and (2) permanent retreat from the existing shoreline (real and capital property abandonment). We propose Macro-engineering use tactical technologies that sculpt and vegetate barren near-coast sand dune fields with seawater, seawater that would otherwise, as commonly postulated, enlarge Earth seascape area! Our Macro-engineering speculation blends eremology with hydrogeology and some hydromancy. We estimate its cost at 1 billion dollars - about 0.01 per sent of the USA 2007 Gross Domestic Product.

  14. Recovery of heavy crude oil or tar sand oil or bitumen from underground formations

    SciTech Connect (OSTI)

    McKay, A.S.

    1989-07-11T23:59:59.000Z

    This patent describes a method of producing heavy crude oil or tar sand oil or bitumen from an underground formation. The method consists of utilizing or establishing an aqueous fluid communication path within and through the formation between an injection well or conduit and a production well or conduit by introducing into the formation from the injection well or conduit hot water and/or low quality steam at a temperature in the range about 60{sup 0}-130{sup 0}C and at a substantially neutral or alkaline pH to establish or enlarge the aqueous fluid communication path within the formation from the injection well or conduit to the production well or conduit by movement of the introduced hot water or low quality steam through the formation, increasing the temperature of the injected hot water of low quality steam to a temperature in the range about 110{sup 0}-180{sup 0}C while increasing the pH of the injected hot water or low quality steam to a pH of about 10-13 so as to bring about the movement or migration or stripping of the heavy crude oil or tar sand oil or bitumen from the formation substantially into the hot aqueous fluid communication path with the formation and recovering the resulting produced heavy crude oil or tar sand oil or bitumen from the formation as an emulsion containing less than about 30% oil or bitumen from the production well or conduit.

  15. Solubility of carbon dioxide in tar sand bitumen; Experimental determination and modeling

    SciTech Connect (OSTI)

    Deo, M.D.; Wang, C.J.; Hanson, F.V. (Dept. of Fuels Engineering, Univ. of Utah, Salt Lake City, UT (US))

    1991-03-01T23:59:59.000Z

    This paper reports on an understanding of the solubility of carbon dioxide (CO{sub 2}) in tar sand bitumen that is essential for the development of in situ processes in the recovery of bitumen from tar and deposits. The solubility of CO{sub 2} in the Tar Sand Triangle (Utah), the PR Spring Rainbow I (Utah), and the Athabasca (Canada) tar sand bitumens was determined with the use of a high-pressure microbalance at temperatures of 358.2 and 393.2 K and pressures up to 6.2 MPa. As expected, the solubilities increased with pressure at a given temperature and decreased with increases in temperature. The Peng--Robinson and the Schmidt--Wenzel equations of state were used to match the experimentally observed solubilities. Correlations for the interaction parameters between CO{sub 2} and the bitumen were developed for both equations of state, wherein the interaction parameter could be obtained by using specific gravity and the UOP {ital K} factor for the bitumen. The correlations were developed with the optimum interaction parameters obtained for each of the samples at each temperature.

  16. Oil shale, tar sand, coal research, advanced exploratory process technology jointly sponsored research

    SciTech Connect (OSTI)

    Not Available

    1992-01-01T23:59:59.000Z

    Accomplishments for the quarter are presented for the following areas of research: oil shale, tar sand, coal, advanced exploratory process technology, and jointly sponsored research. Oil shale research includes; oil shale process studies, environmental base studies for oil shale, and miscellaneous basic concept studies. Tar sand research covers process development. Coal research includes; underground coal gasification, coal combustion, integrated coal processing concepts, and solid waste management. Advanced exploratory process technology includes; advanced process concepts, advanced mitigation concepts, and oil and gas technology. Jointly sponsored research includes: organic and inorganic hazardous waste stabilization; development and validation of a standard test method for sequential batch extraction fluid; operation and evaluation of the CO[sub 2] HUFF-N-PUFF Process; fly ash binder for unsurfaced road aggregates; solid state NMR analysis of Mesa Verde Group, Greater Green River Basin, tight gas sands; flow-loop testing of double-wall pipe for thermal applications; characterization of petroleum residue; shallow oil production using horizontal wells with enhanced recovery techniques; and menu driven access to the WDEQ Hydrologic Data Management Systems.

  17. A study of the plastic and elastic strain characteristics of an angular and well-graded sand experiencing cyclic loading

    E-Print Network [OSTI]

    Spencer, William Frank

    1957-01-01T23:59:59.000Z

    A ST%K OP THE PLASTIC AND ELASTIC STRAIN CHARACTERISTICS OF AN ANOULAR AND WELL ARAXSD SAND EXPERXENCIN6 CYCLIC LOADIN6 A Thesis By WILLIAM FRANK SPENCER, ZR. Subnitted to the Graduate School of the Agricultural and Mechanical College... of Texas partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1957 Major Sub/acti Civil Engineering A STOVES OF THE PLASTIC AND ELASTIC STRAIN CHARACTERISTICS OP AN ANOULAR AND WELL SRAXED SAND EXPERIENCING CYCLIC...

  18. The effect of sand grain size distribution on the minimum oil saturation necessary to support in-situ combustion

    E-Print Network [OSTI]

    Daniel, William Marvin

    1973-01-01T23:59:59.000Z

    THE EFFECT OF SAND GRAIN SIZE DISTRIBUTION ON THE MINIMUM OIL SATURATION NECESSARY TO SUPPORT IN-SITU COMBUSTION A Thesis by WILLIAM MARVIN DANIEL Submitted to the Graduate College of Texas ARM University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE May 1973 Major Subject: Petroleum. Engineering THE EFFECT OF SAND GRAIN SIZE DISTRIBUTION ON THE MINIMUM OIL SATURATION NECESSARY TO SUPPORT IN-SITU COMBUSTION A Thesis by WILLIAM MARVIN DANIEL Approved...

  19. Assessment of environmental health and safety issues associated with the commercialization of unconventional gas recovery: Tight Western Sands

    SciTech Connect (OSTI)

    Riedel, E.F.; Cowan, C.E.; McLaughlin, T.J.

    1980-02-01T23:59:59.000Z

    Results of a study to identify and evaluate potential public health and safety problems and the potential environmental impacts from recovery of natural gas from Tight Western Sands are reported. A brief discussion of economic and technical constraints to development of this resource is also presented to place the environmental and safety issues in perspective. A description of the resource base, recovery techniques, and possible environmental effects associated with tight gas sands is presented.

  20. Fine-structure constant constraints on dark energy

    E-Print Network [OSTI]

    Martins, C J A P

    2015-01-01T23:59:59.000Z

    We use astrophysical and atomic clock tests of the stability of the fine-structure constant $\\alpha$, together with Type Ia supernova and Hubble parameter data, to constrain the simplest class of dynamical dark energy models where the same degree of freedom is assumed to provide both the dark energy and (through a dimensionless coupling, $\\zeta$, to the electromagnetic sector) the $\\alpha$ variation. We show how current data tightly constrains a combination of $\\zeta$ and the dark energy equation of state $w_0$. At the $95\\%$ confidence level and marginalizing over $w_0$ we find $|\\zeta|<5\\times10^{-6}$, with the atomic clock tests dominating the constraints. The forthcoming generation of high-resolution ultra-stable spectrographs will enable significantly tighter constraints.

  1. Programmable Differential Delay Circuit With Fine Delay Adjustment

    DOE Patents [OSTI]

    DeRyckere, John F. (Eau Claire, WI); Jenkins, Philip Nord (Eau Claire, WI); Cornett, Frank Nolan (Chippewa Falls, WI)

    2002-07-09T23:59:59.000Z

    Circuitry that provides additional delay to early arriving signals such that all data signals arrive at a receiving latch with same path delay. The delay of a forwarded clock reference is also controlled such that the capturing clock edge will be optimally positioned near quadrature (depending on latch setup/hold requirements). The circuitry continuously adapts to data and clock path delay changes and digital filtering of phase measurements reduce errors brought on by jittering data edges. The circuitry utilizes only the minimum amount of delay necessary to achieve objective thereby limiting any unintended jitter. Particularly, this programmable differential delay circuit with fine delay adjustment is designed to allow the skew between ASICS to be minimized. This includes skew between data bits, between data bits and clocks as well as minimizing the overall skew in a channel between ASICS.

  2. $f(T)$ Theories and Varying Fine Structure Constant

    E-Print Network [OSTI]

    Wei, Hao; Qi, Hao-Yu

    2011-01-01T23:59:59.000Z

    In analogy to $f(R)$ theory, recently $f(T)$ theory has been proposed to drive the current accelerated expansion without invoking dark energy. In the literature, the observational constraints on $f(T)$ theories were obtained mainly by using the cosmological data, such as type Ia supernovae (SNIa), baryon acoustic oscillation (BAO), and cosmic microwave background radiation (CMB). In this work, we instead try to constrain $f(T)$ theories with the varying fine structure "constant", $\\alpha\\equiv e^2/\\hbar c$. We find that the constraints on $f(T)$ theories from the observational $\\Delta\\alpha/\\alpha$ data are very severe. In fact, they make $f(T)$ theories almost indistinguishable from $\\Lambda$CDM model.

  3. DEVELOPMENT OF A NOVEL FINE COAL CLEANING SYSTEM

    SciTech Connect (OSTI)

    Manoj K. Mohanty

    2005-06-01T23:59:59.000Z

    The goal of the proposed project was to develop a novel fine coal separator having the ability to clean 1 mm x 0 size coal in a single processing unit. The novel fine coal separator, named as EG(Enhanced Gravity) Float Cell, utilizes a centrifugal field to clean 1 mm x 250 micron size coal, whereas a flotation environment to clean minus 250 micron coal size fraction. Unlike a conventional enhanced gravity concentrator, which rotates to produce a centrifugal field requiring more energy, the EG Float Cell is fed with a tangential feed slurry to generate an enhanced gravity field without any rotating part. A prototype EG Float Cell unit having a maximum diameter of 60 cm (24 inch) was fabricated during the first-half of the project period followed by a series of exploratory tests to make suitable design modification. Test data indicated that there was a significant concentration of coarse heavy materials in the coarse tailings discharge of the EG Float Cell. The increase in weight (%) of 1 mm x 250 micron (16 x 60 mesh) size fraction from 48.9% in the feed to 72.2% in the coarse tailings discharge and the corresponding increase in the ash content from 56.9% to 87.0% is indicative of the effectiveness of the enhanced gravity section of the EG Float Cell. However, the performance of the flotation section needs to be improved. Some of the possible design modifications may include more effective air sparging system for the flotation section to produce finer bubbles and a better wash water distributor.

  4. (Recovery of coal fines from preparation plant effluents)

    SciTech Connect (OSTI)

    Choudhry, V. (Praxis Engineers, Inc., Milpitas, CA (USA)); Khan, L. (Illinois State Geological Survey, Champaign, IL (USA)); Yang, D. (Michigan Technological Univ., Houghton, MI (USA))

    1991-01-01T23:59:59.000Z

    The objectives of this project are to test and demonstrate the feasibility of recovering coal fines which are currently disposed of with plant effluent streams, in order to produce a fine clean coal product. This product can then be blended with the coarse clean coal from the preparation plant. Recovery of coal from the effluent stream samples will be effected by means of Michigan Technological University's static tube flotation process. This process has been successfully demonstrated on a number of raw coals to reject 85% of the pyritic sulfur and recover 90% of the combustible matter. The process parameters will be modified so that this technology can be applied to preparation plant effluents in order to recover a low-ash, low-sulfur clean coal that is, at a minimum, compatible with the quality of the clean coal currently produced from the preparation plant. The main activities during this period were setting up the static tube test unit to conduct the experimental work as outlined in the project work plan. The first of four effluent slurry samples collected from four operating Illinois preparation plants was tested at Michigan Technological University. The first batch of tests resulted in a clean coal containing 7.5% ash at 94.5% combustible matter recovery. Another test aimed at lowering the ash further analyzed at 3.0% ash and 0.92% total sulfur. In addition, analyses of particle size distribution and sink-float testing of the +200 mesh material were undertaken as a part of the effluent characterization work. 5 tabs.

  5. Class I cultural resource overview for oil shale and tar sands areas in Colorado, Utah and Wyoming.

    SciTech Connect (OSTI)

    O'Rourke, D.; Kullen, D.; Gierek, L.; Wescott, K.; Greby, M.; Anast, G.; Nesta, M.; Walston, L.; Tate, R.; Azzarello, A.; Vinikour, B.; Van Lonkhuyzen, B.; Quinn, J.; Yuen, R.; Environmental Science Division

    2007-11-01T23:59:59.000Z

    In August 2005, the U.S. Congress enacted the Energy Policy Act of 2005, Public Law 109-58. In Section 369 of this Act, also known as the 'Oil Shale, Tar Sands, and Other Strategic Unconventional Fuels Act of 2005', Congress declared that oil shale and tar sands (and other unconventional fuels) are strategically important domestic energy resources that should be developed to reduce the nation's growing dependence on oil from politically and economically unstable foreign sources. The Bureau of Land Management (BLM) is developing a Programmatic Environmental Impact Statement (PEIS) to evaluate alternatives for establishing commercial oil shale and tar sands leasing programs in Colorado, Wyoming, and Utah. This PEIS evaluates the potential impacts of alternatives identifying BLM-administered lands as available for application for commercial leasing of oil shale resources within the three states and of tar sands resources within Utah. The scope of the analysis of the PEIS also includes an assessment of the potential effects of future commercial leasing. This Class I cultural resources study is in support of the Draft Oil Shale and Tar Sands Resource Management Plan Amendments to Address Land Use Allocations in Colorado, Utah, and Wyoming and Programmatic Environmental Impact Statement and is an attempt to synthesize archaeological data covering the most geologically prospective lands for oil shale and tar sands in Colorado, Utah, and Wyoming. This report is based solely on geographic information system (GIS) data held by the Colorado, Utah, and Wyoming State Historic Preservation Offices (SHPOs). The GIS data include the information that the BLM has provided to the SHPOs. The primary purpose of the Class I cultural resources overview is to provide information on the affected environment for the PEIS. Furthermore, this report provides recommendations to support planning decisions and the management of cultural resources that could be impacted by future oil shale and tar sands resource development.

  6. Effects of mining on fine sediment quality; a comparison with regional metal background

    E-Print Network [OSTI]

    Northern British Columbia, University of

    Effects of mining on fine sediment quality; a comparison with regional metal background University Date March 2, 2011 #12;2 Abstract The impact of an abandoned hydraulic gold mine and an open cast copper-gold mine on the quality of fine-grained sediment (

  7. Influence of recycled fine aggregates on the resistance of mortars to magnesium sulfate attack

    SciTech Connect (OSTI)

    Lee, Seung-Tae [Department of Civil Engineering, Kunsan National University, 68 Miryong-dong, Kunsan, Jeonbuk 573-701 (Korea, Republic of)], E-mail: stlee@kunsan.ac.kr

    2009-08-15T23:59:59.000Z

    The influence of recycled fine aggregates, which had been reclaimed from field-demolished concretes, on the resistance of mortar specimens to magnesium sulfate attack was investigated. Mortar specimens were prepared with recycled fine aggregates at different replacement levels (0%, 25%, 50%, 75% and 100% of natural fine aggregate by mass). The mortar specimens were exposed to 4.24% magnesium sulfate solution for about 1 year at ambient temperature, and regularly monitored for visual appearance, compressive strength loss and expansion. Additionally, in order to identify products of magnesium sulfate attack, mortar samples incorporating 0%, 25% and 100% replacement levels of the recycled fine aggregates were examined by X-ray diffraction (XRD) technique. Experimental results confirmed that the use of recycled fine aggregates up to a maximum 50% replacement level is effective under severe magnesium sulfate environment, irrespective of type of recycled fine aggregates. However, the worse performance was observed in mortar specimens incorporating 100% replacement level. It was found that the water absorption of recycled fine aggregates affected deterioration of mortar specimens, especially at a higher replacement level. XRD results indicated that the main cause of deterioration of the mortar specimens was primarily due to the formation of gypsum and thaumasite by magnesium sulfate attack. In addition, it appeared that the conversion of C-S-H into M-S-H by the attack probably influenced mechanical deterioration of mortar specimens with recycled fine aggregates.

  8. Hayaku: Designing and Optimizing Finely Tuned and Portable Interactive Graphics with a Graphical Compiler

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Hayaku: Designing and Optimizing Finely Tuned and Portable Interactive Graphics with a Graphical, France stephane.conversy@enac.fr ABSTRACT Although reactive and graphically rich interfaces are now that supports de- signing finely tuned interactive graphics. With Hayaku, a designer can abstract graphics

  9. Fine-Scale Zonal Flow Suppression of Electron Temperature Gradient Turbulence

    E-Print Network [OSTI]

    Lin, Zhihong

    as an explanation for the long time build up of the zonal flow in ETG turbulence and it is shown that the generationFine-Scale Zonal Flow Suppression of Electron Temperature Gradient Turbulence S.E. Parker , J continue to grow algebraically (proportional to time). These fine-scale zonal flows have a radial wave

  10. Real-time, Photo-realistic, Physically Based Rendering of Fine Scale Human Skin Structure

    E-Print Network [OSTI]

    Haro, Antonio

    structure samples, build models of fine scale structure production, and then render this detail usingReal-time, Photo-realistic, Physically Based Rendering of Fine Scale Human Skin Structure Antonio, which is clearly visible in close-up shots in a film or game. Methods that rely on simple texture

  11. Fine structure of helium and light helium-like ions Krzysztof Pachucki and Vladimir A. Yerokhin

    E-Print Network [OSTI]

    Pachucki, Krzysztof

    1 Fine structure of helium and light helium-like ions Krzysztof Pachucki and Vladimir A. Yerokhin Abstract: Calculational results are presented for the fine-structure splitting of the 23 P state of helium and helium-like ions with the nuclear charge Z up to 10. Theoretical predictions are in agreement

  12. HEP/123-qed Fine structure of alpha decay in odd nuclei

    E-Print Network [OSTI]

    M. Mirea

    2000-01-01T23:59:59.000Z

    Using an ? decay level scheme, the fine structure in odd nuclei is explained by taking into account the radial and rotational couplings between the unpaired valence nucleon and the core of the decaying system. It is shown that the experimental behavior of the ? decay fine structure phenomenon is governed by the dynamical characteristics of the system.

  13. Physically based model of downstream fining in bedrock streams with lateral input

    E-Print Network [OSTI]

    Lajeunesse, Eric

    Click Here for Full Article Physically based model of downstream fining in bedrock streams not show a clear, monotonic pattern of size reduction in the downstream direction. Both abrasion and selective sorting may play important roles in generating downstream fining. The objective of this study

  14. Influence of fine particles on the stability of a humid granular pile

    E-Print Network [OSTI]

    Xixi Huang; Sandrine Bec; J. Colombani

    2014-12-02T23:59:59.000Z

    We have investigated by rotating drum experiments the influence of a small amount of fine particles on the stability of a granular heap. The fine particles are shown to have a strong and ambivalent influence. For low fine particle content, the heap destabilizes by avalanches, and the fine particles tend to fluidize the heap. In contrast, for high fine particle content, they increase the cohesion of the heap, which destabilizes through stick-slip at the drum wall. We interpret and model the fluidification in the avalanching regime, which we show is independent of humidity, by granular lubrication considerations, whereas the stick-slip behavior, highly dependent on humidity, is understood by a solid friction model.

  15. Influence of fine particles on the stability of a humid granular pile

    E-Print Network [OSTI]

    Huang, Xixi; Colombani, J

    2014-01-01T23:59:59.000Z

    We have investigated by rotating drum experiments the influence of a small amount of fine particles on the stability of a granular heap. The fine particles are shown to have a strong and ambivalent influence. For low fine particle content, the heap destabilizes by avalanches, and the fine particles tend to fluidize the heap. In contrast, for high fine particle content, they increase the cohesion of the heap, which destabilizes through stick-slip at the drum wall. We interpret and model the fluidification in the avalanching regime, which we show is independent of humidity, by granular lubrication considerations, whereas the stick-slip behavior, highly dependent on humidity, is understood by a solid friction model.

  16. Olig sand, shallow oil zone, Elk Hills Field, Kern County, California: General reservoir study

    SciTech Connect (OSTI)

    Not Available

    1986-08-01T23:59:59.000Z

    The Olig Sand Reservoirs, classified as part of the Shallow Oil Zone, were studied and evaluated. The reservoirs are located in Section 30R, T30S, R23E and Section 24Z, T30S, R22E, M.D.B. and M., all in Elk Hills Oil Field, Naval Petroleum Reserve No. 1, Kern County, California. The three productive reservoirs studied cover an area of 255 acres, and originally contained 3311 MMCF of gas condensate in 4292 acre-feet of sand. The main reservoir, Fault Block I in Section 30R, has been on production since 1982 and is largely depleted. The reservoirs around wells 324-30R and 385-24Z should still be in a virgin state. They can be depleted either through those wells, when their service as Stevens Zone producers is completed, or by twin well replacements drilled specifically as Olig Sand completions. Thirty-six exhibits have been included to present basic data and study results in a manner that will enhance the readers's understanding of the reservoirs. These exhibits include six maps in the M-series, six sections in the S-Series, and fourteen figures in the F-Series, as well as ten tables. The Appendix includes miscellaneous basic data such as well logs, core analyses, pressure measurements, and well tests. The Calculations Section of the report develops and explains the analytical methods used to define well productivity, determine reserves, and schedule future production of those reserves. Although no MER recommendations have been made for these gas condensate reservoirs, recommended depletion schemes and schedules are presented. These schemes include one eventual recompletion and one new well to maximize present worth of these reservoirs which carry proved reserves of 289 MMCF and probable reserves of 853 MMCF, effective August 1, 1986. In addition, potential future testing is earmarked for wells 322-30R and 344-30R. 11 refs., 14 figs., 10 tabs.

  17. High resolution sequence stratigraphic and reservoir characterization studies of D-07, D-08 and E-01 sands, Block 2 Meren field, offshore Niger Delta

    E-Print Network [OSTI]

    Esan, Adegbenga Oluwafemi

    2004-09-30T23:59:59.000Z

    - to fine-grained poorly-sorted sandstone (delta front facies); (5) muddy silt-to fine- grained wavy-bedded sandstone (lower shoreface facies); (6) very-fine- to fine-grained iv sandy mudstone (lower shoreface facies); and (7) massive, silty shales.... The progradational parasequence set consists of upward-coarsening delta front to upper shoreface facies, whereas the upward- fining retrogradational parasequence sets are composed of middle to lower shoreface deposits overlain by offshore marine shales...

  18. Radiological survey of the radioactive sands and residues at Lowman, Idaho

    SciTech Connect (OSTI)

    Haywood, F.F.; Burden, J.E.; Ellis, B.S.; Loy, E.T.; Shinpaugh, W.H.

    1980-08-01T23:59:59.000Z

    No uranium ore milling was performed at the Lowman site, which is located approximately 0.8 km northeast of the town of Lowman, Idaho. Nevertheless, approximately 80,000 metric tons of radioactive sands and residues from upgrading of heavy minerals by physical processing methods remain on the site grounds. Measurements of external gamma radiation 1 m above the surface showed exposure rates up to 2.4 mR/hr on site, but the exposure rate off site quickly dropped to the background level in all directions. Analysis of surface soil and sediment samples for /sup 226/Ra and /sup 232/Th indicated a limited spread of radioactive material.

  19. Investigation of the thermal conductivity of unconsolidated sand packs containing oil, water, and gas

    E-Print Network [OSTI]

    Gore, David Eugene

    1958-01-01T23:59:59.000Z

    of the requirements for the degree of EASTER OF SCIENCE August, lBSS Najor Subject: Petroleum Engineering INVESTIGATION OF THE THERNAI CONDUCTIVITY OF UNCONSOI IDATED SAND PACKS CONTAINING OII, WATER, AND GAS A Thesis By David E, Gore APProved as to style... expressed in degrees Fahrenheit, and, at 0 oF, , the abscissa would become ini'inite. This restriction does not limit the application of the data to petroleum reservoirs as the tem- perature normally encountered is in excess of 100 oF. The reservoir...

  20. AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for NASA White Sands Test Facility

    SciTech Connect (OSTI)

    Stephen Schey; Jim Francfort

    2014-10-01T23:59:59.000Z

    This report focuses on the NASA White Sands Test Facility (WSTF) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of plug-in electric vehicles (PEVs) into the agencies’ fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle (BEV) or plug-in hybrid electric vehicle (PHEV) (collectively plug-in electric vehicles, or PEVs) can fulfill the mission requirements.

  1. Western gas sands project. Status report, 1 June-30 June 1980

    SciTech Connect (OSTI)

    Not Available

    1980-01-01T23:59:59.000Z

    Progress of the government-sponsored projects during June 1980, that are directed towards increasing gas production from the low permeability gas sands of the western United States, is summarized. Northwest Exploration declined use of their site for the multi-well experiment; additional sites are being contemplated. Experiments began at Bartlesville Energy Technology Center designed to examine fracture closure and crushing strength of bauxite. At Lawrence Livermore Laboratory, work is progressing on the code to calculate fluid motion in an expanding propagation crack.

  2. Acoustic emission and compaction creep of quartz sand at subcritical stress 

    E-Print Network [OSTI]

    Lenz, Steven Christopher

    2002-01-01T23:59:59.000Z

    on St. Peter sand (S-experiment number, grain size = 255 + 60 pm) and disaggregated novaculite (NV-experiment number, grain size = 35 t 12 Iim). The representative burial depths assume a lithostatic gradient of 25 MPa/km, a hydrostatic gradient of 10... 'C (Figure 2). 2. 2. Low Temperature Sample Assembly For all room temperature experiments, a single PFA Teflon heat-shrunk tube (0. 64 mm wall thickness) is sealed to the upper and lower pistons using nickel-chromium tU 5 o 0 o S-03, S-07, NV-02...

  3. Shapes and surface textures of quartz sand grains from glacial deposits: effects of source and transport

    E-Print Network [OSTI]

    Ritter, Christine

    1987-01-01T23:59:59.000Z

    and to define the shapes and surface texture characteristics which distinguish them from quartz grains of non-glacial origin, 2) to determine the effects of source rock upon the shapes and surface textures of glacial quartz grains, 3) to determine..., and there are no differences in shapes and surface textures of glacial and proglacial quartz grains. The results show that the shapes and surface textures of glacial quartz sand grains largely reflect, and thus are controlled by, the lithology of the source rock from which...

  4. Pile design predictions in sand and gravel using in situ tests 

    E-Print Network [OSTI]

    Huff, Linda Grubbs

    1983-01-01T23:59:59.000Z

    methods, using in situ test results, are being developed for use in the design of piles in sand. In this study, these in situ tests and the new design methods are used to predict bearing capacity and settlement for both tension and compression loads... OP CONTENTS INTRODUCTION Background for this Study Scope of this Study ~Pa e 1 1 2 THE TEST SITE Location Borings and Tests The Soil 4 4 4 14 IN SITU TEST PROCEDURES AND RESULTS Pressuremeter Test Procedures Pressuremeter Test...

  5. In situ heat treatment from multiple layers of a tar sands formation

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX)

    2010-11-30T23:59:59.000Z

    A method for treating a tar sands formation is disclosed. The method includes providing a drive fluid to a first hydrocarbon containing layer of the formation to mobilize at least some hydrocarbons in the first layer. At least some of the mobilized hydrocarbons are allowed to flow into a second hydrocarbon containing layer of the formation. Heat is provided to the second layer from one or more heaters located in the second layer. At least some hydrocarbons are produced from the second layer of the formation.

  6. Soil damping constants related to common soil properties in sands and clays

    E-Print Network [OSTI]

    Gibson, Gary Clive

    1968-01-01T23:59:59.000Z

    resisting force approaches a static value: paretic = K I, et ting Pd ~ ic equal R. in equation 1 from Smith's mathcma- dynnmic r. tical model and s?b . tituting equation. 2 and 3 into 1, thc neak dynamic resistance of the soil i Pdynamic = Pstetic... device) to 12 inches. In dense sands this weight was not sufficiently large to fail the sample when 2'-4" SCALE: V2" = I'-0 RELEASE MECHANISM I 20 9. 0 FRAME TO STOP FALL ING WEIGHT l65 LB FRAME RUBBER PADS TRIAXI*L CELL AND SAMPLE O IK...

  7. Western gas sands project. Status report, 1 July-31 July, 1980

    SciTech Connect (OSTI)

    Not Available

    1980-01-01T23:59:59.000Z

    The progress of the government-sponsored projects, directed towards increasing gas production from the low permeability gas sands of the western United States, is summarized. A subcontract was approved between Gas Research Institute and M.D. Wood, Inc. to obtain information on hydraulic fracture length. A meeting was held with Superior Oil Company during July to discuss possible sites for the multi-well experiment. Bartlesville Energy Technology Center continued work toward the assessment of fracture fluid effects on post fracture test times. A full report of the Seismic Formation Mapping Program will be issued by Sandia after review and editing have been completed.

  8. Western Gas Sands Project. Status report, 1 January-31 January 1980

    SciTech Connect (OSTI)

    Not Available

    1980-01-01T23:59:59.000Z

    This report summarizes January, 1980, progress of the government-sponsored projects directed toward increasing gas production from the low-permeability gas sands of the western United States. The USGS continued activities in the four primary areas of interest in the WGSP; coring and logging of Rainbow Resources No. 1-3 Federal well, Sweetwater County, Wyoming, was completed during January. The DOE Well Test Facility was moved to Wattenberg field to monitor well tests at the Colorado Interstate Gas Company cyclic injection site. Sixteen minifracs were conducted at the Nevada Test Site in conjunction with Sandia Mineback program.

  9. Method of condensing vaporized water in situ to treat tar sands formations

    DOE Patents [OSTI]

    Hsu, Chia-Fu (Rijswijk, NL)

    2010-03-16T23:59:59.000Z

    Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. Heat may be allowed to transfer from the heaters to at least a first portion of the formation. Conditions may be controlled in the formation so that water vaporized by the heaters in the first portion is selectively condensed in a second portion of the formation. At least some of the fluids may be produced from the formation.

  10. Environmental, health, safety, and socioeconomic concerns associated with oil recovery from US tar-sand deposits: state-of-knowledge

    SciTech Connect (OSTI)

    Daniels, J.I.; Anspaugh, L.R.; Ricker, Y.E.

    1982-01-08T23:59:59.000Z

    Tar-sand petroleum-extraction procedures undergoing field testing for possible commercial application in the US include both surface (above-ground) and in situ (underground) procedures. The surface tar-sand systems currently being field tested in the US are thermal decomposition processes (retorting), and suspension methods (solvent extraction). Underground bitumen extraction procedures that are also being field tested domestically are in situ combustion and steam-injection. Environmental, health, safety, and socioeconomic concerns associated with construction and operation of 20,000-bbl/d commercial tar-sand surface and in situ facilities have been estimated and are summarized in this report. The principal regulations that commercial tar-sand facilities will need to address are also discussed, and environmental control technologies are summarized and wherever possible, projected costs of emission controls are stated. Finally, the likelihood-of-occurrence of potential environmental, health, and safety problems that have been determined are reviewed, and from this information inference is made as to the environmental acceptability of technologically feasible 20,000-bbl/d commercial tar-sand oil-extraction procedures.

  11. Page 1 of 5 Quick Guide for Weed Control in Texas High Plains Grain Sorghum2009

    E-Print Network [OSTI]

    Mukhtar, Saqib

    Page 1 of 5 Quick Guide for Weed Control in Texas High Plains Grain Sorghum­2009 Brent Bean, Texas is no substitute for the herbicide product labels! It is intended to serve only as a guide for controlling weeds prior to crop emergence. Do not use on soils with less than 1% O.M. or sand, loamy sand or sandy loam

  12. Page 1 of 6 Quick Guide for Weed Control in Texas High Plains Grain Sorghum 2007

    E-Print Network [OSTI]

    Mukhtar, Saqib

    Page 1 of 6 Quick Guide for Weed Control in Texas High Plains Grain Sorghum ­ 2007 Brent Bean for the herbicide product labels! It is intended to serve only as a guide for controlling weeds in sorghum. Because emergence. Do not use on soils with less than 1% O.M. or sand, loamy sand or sandy loam textured. Good

  13. Sand Castle

    E-Print Network [OSTI]

    Holden, E.

    1997-01-01T23:59:59.000Z

    . Bodie's smile was unrepentant. "Sorry, sir." "Ach, get out of here, man, you have training to be busy with, and Jack Crane won't thank me if you're late." Bodie went to the testing-grounds and Cowley sat, thinking about him. It was said..., before he went mad with greed, and with experts like Harriet Sinclair (now retired), Kate Ross, and the military specialist Jack Crane. He had another talk with Bodie, as fruitless as the first. "You're not coming up to scratch," he shouted...

  14. Selecting fines recycle methods to optimize fluid bed combustor performance

    SciTech Connect (OSTI)

    Rickman, W.S.; Fields, D.E.; Brimhall, W.L.; Callahan, S.F.

    1980-05-01T23:59:59.000Z

    Testing and analysis of a number of different fines recycle methods for fluid bed combustors has led to a generalized modeling technique. This model accounts for the effect of pertinent variables in determining overall combustion efficiencies. Computer application of this model has allowed trade-off studies to be performed that show the overall process effects of changes in individual operating parameters. Verification of the model has been accomplished in processing campaigns while combusting fuels such as graphite and bituminous coal. A 0.4 MW test unit was used for the graphite experimental work. Solid fuel was typically crushed to 5 mm maximum screen size. Bed temperatures were normally controlled at 900/sup 0/C; the combustor was an atmospheric unit with maximum in-bed pressures of 0.2 atm. Expanded bed depths ranged from 1.5 to 3 meters. Additional data was taken from recycle tests sponsored by EPRI on the B and W 6 ft x 6 ft fluid bed combustor. These tests used high sulfur coal in a 1.2 meter deep, 850/sup 0/C atmospheric fluidized bed of limestone, with low recycle rates and temperatures. Close agreement between the model and test data has been noted, with combustion efficiency predictions matching experimental results within 1%.

  15. Solder flow over fine line PWB surface finishes

    SciTech Connect (OSTI)

    Hosking, F.M.; Hernandez, C.L.

    1998-08-01T23:59:59.000Z

    The rapid advancement of interconnect technology has stimulated the development of alternative printed wiring board (PWB) surface finishes to enhance the solderability of standard copper and solder-coated surfaces. These new finishes are based on either metallic or organic chemistries. As part of an ongoing solderability study, Sandia National Laboratories has investigated the solder flow behavior of two azole-based organic solderability preservations, immersion Au, immersion Ag, electroless Pd, and electroless Pd/Ni on fine line copper features. The coated substrates were solder tested in the as-fabricated and environmentally-stressed conditions. Samples were processed through an inerted reflow machine. The azole-based coatings generally provided the most effective protection after aging. Thin Pd over Cu yielded the best wetting results of the metallic coatings, with complete dissolution of the Pd overcoat and wetting of the underlying Cu by the flowing solder. Limited wetting was measured on the thicker Pd and Pd over Ni finishes, which were not completely dissolved by the molten solder. The immersion Au and Ag finishes yielded the lowest wetted lengths, respectively. These general differences in solderability were directly attributed to the type of surface finish which the solder came in contact with. The effects of circuit geometry, surface finish, stressing, and solder processing conditions are discussed.

  16. Geometry and continuity of fine-grained reservoir sandstones deformed within an accretionary prism - Basal Unit, West Woodbourne 

    E-Print Network [OSTI]

    Blackman, Ingrid Maria

    2004-09-30T23:59:59.000Z

    The Basal Unit of West Woodbourne Field in Barbados is a 250 m thick succession of finely-interbedded sandstones and mudstones deposited by Paleogene, fine-grained, deep-water systems off the northern South American margin ...

  17. ON THE USE OF EXTENDED X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY TO DETERMINE THE BONDING CONFIGURATIONS OF

    E-Print Network [OSTI]

    Sparks, Donald L.

    ON THE USE OF EXTENDED X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY TO DETERMINE THE BONDING Rights Reserved #12;ON THE USE OF EXTENDED X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY TO DETERMINE

  18. Supercritical fluid extraction of bitumen free solids separated from Athabasca oil sand feed and hot water process tailings pond sludge

    SciTech Connect (OSTI)

    Kotlyar, L.S.; Sparks, B.D.; Woods, J.R.; Ripmeester, J.A. (National Research Council of Canada, Ottawa, ON (Canada). Div. of Chemistry)

    1990-01-01T23:59:59.000Z

    The presence of strongly bound organic matter (SOM), in association with certain solids fractions, causes serious problems in the processability of Athabasca oil sands as well as in the settling and compaction of hot water process tailing pond sludge. It has been demonstrated that a substantial amount of this SOM can be separated from oil sands feed and sludge solids, after removal of bitumen by toluene, using a supercritical fluid extraction (SFE) method. The extracted material is soluble in common organic solvents which allows a direct comparison, between the SOM separated from oil sands and sludges, from the point of view of both gross analysis of the major compound types and detailed analysis of chemical structures.

  19. Mineral Dissolution and Secondary Precipitation on Quartz Sand in Simulated Hanford Tank Solutions Affecting Subsurface Porosity

    SciTech Connect (OSTI)

    Wang, Guohui; Um, Wooyong

    2012-11-23T23:59:59.000Z

    Highly alkaline nuclear waste solutions have been released from underground nuclear waste storage tanks and pipelines into the vadose zone at the U.S. Department of Energy’s Hanford Site in Washington, causing mineral dissolution and re-precipitation upon contact with subsurface sediments. High pH caustic NaNO3 solutions with and without dissolved Al were reacted with quartz sand through flow-through columns stepwise at 45, 51, and 89°C to simulate possible reactions between leaked nuclear waste solution and primary subsurface mineral. Upon reaction, Si was released from the dissolution of quartz sand, and nitrate-cancrinite [Na8Si6Al6O24(NO3)2] precipitated on the quartz surface as a secondary mineral phase. Both steady-state dissolution and precipitation kinetics were quantified, and quartz dissolution apparent activation energy was determined. Mineral alteration through dissolution and precipitation processes results in pore volume and structure changes in the subsurface porous media. In this study, the column porosity increased up to 40.3% in the pure dissolution column when no dissolved Al was present in the leachate, whereas up to a 26.5% porosity decrease was found in columns where both dissolution and precipitation were observed because of the presence of Al in the input solution. The porosity change was also confirmed by calculation using the dissolution and precipitation rates and mineral volume changes.

  20. Comparisons of hydrocarbon and nitrogen distributions in geologically diverse tar sand bitumen

    SciTech Connect (OSTI)

    Holmes, S.A.

    1988-06-01T23:59:59.000Z

    The characteristics of bitumens from different tar sand deposits are generally significantly different and affect the utilization of the resource. The chemical and physical properties of bitumen are a result of maturation reactions on the varied organic sediments. For example, saturated hydrocarbon distributions have been related to the geochemical history of organic matter. Very paraffinic or sometimes paraffinic-naphthenic distributions in organic matter are derived from a nonmarine depositional environment. More aromatic and paraffinic-naphthenic hydrocarbon distributions are derived from organic matter deposited in a marine environment. The characteristics of the bitumen also influence the potential for recovery and subsequent processing of the material. For example, saturated hydrocarbons contribute to the high pour points of recovered oils. The origin and composition of an oil influence its viscosity, API gravity, and coke formation during processing, particularly under low-temperature oxidation conditions. The objective of this work is to determine the chemical and physical properties of several samples of bitumen from geologically diverse tar sand deposits. The compound-type distributions and LTD properties of these bitumens are discussed relative to the depositional environment and processing potential of the organic matter.