Sample records for mt simon sandstone

  1. Tidally dominated depositional environment for the Mt. Simon Sandstone in central Illinois

    SciTech Connect (OSTI)

    Sargent, M.L.; Lasemi, Z. (Illinois State Geological Survey, Champaign, IL (United States))

    1993-03-01T23:59:59.000Z

    Several hundred feet of core from the upper part of the Mt. Simon in central Illinois have been examined macroscopically. Grain sizes and their systematics, bedding characteristics, sedimentary structures, and relationships among beds show that the upper Mt. Simon Sandstone is composed of a series of fining-upward cycles up to 10 m (30 feet) thick. A typical cycle consists, in ascending order, of a sandy subtidal facies, a mixed sand and mud intertidal-flat facies, and a muddy upper tidal-flat facies upward through the succession, the maximum and average grain size becomes progressively finer and the cycles thinner. The lower sandstone of each cycle contains beds that are massive to cross bedded and cross laminated; some beds show scoured reactivation surfaces. A few cycles contain a middle unit characterized by flaser and lenticular bedding and abundant mudcracks. Mudcracks also are common in the shale beds at the top of each cycle. Sedimentary structures such as reactivation surfaces, flaser and lenticular bedding, and mudcracks suggest that these cycles were deposited in peritidal environments. The presence of Skolithos in some cycles suggests very shallow marine conditions. The within-cycle upward fining is caused by regression or progradation that reflects a progressive decrease in current velocity from subtidal to intertidal parts of the tidal flat. Frequent flooding of the tidal flat resulted in repeated fining-upward cycles within the upper part of the Mt. Simon Sandstone.

  2. CO2 flood tests on whole core samples of the Mt. Simon sandstone, Illinois Basin

    SciTech Connect (OSTI)

    O'Connor, William K.; Rush, Gilbert E.

    2005-09-01T23:59:59.000Z

    Geological sequestration of CO2, whether by enhanced oil recovery (EOR), coal-bed methane (CBM) recovery, or saline aquifer injection is a promising near-term sequestration methodology. While tremendous experience exists for EOR, and CBM recovery has been demonstrated in existing fields, saline aquifer injection studies have only recently been initiated. Studies evaluating the availability of saline aquifers suitable for CO2 injection show great potential, however, the long-term fate of the CO2 injected into these ancient aqueous systems is still uncertain. For the subject study, a series of laboratory-scale CO2 flood tests were conducted on whole core samples of the Mt. Simon sandstone from the Illinois Basin. By conducting these tests on whole core samples rather than crushed core, an evaluation of the impact of the CO2 flood on the rock mechanics properties as well as the geochemistry of the core and brine solution has been possible. This empirical data could provide a valuable resource for the validation of reservoir models under development for these engineered CO2 systems.

  3. DOE Partnership Completes Successful CO2 Injection Test in the Mount Simon Sandstone

    Broader source: Energy.gov [DOE]

    The Midwest Regional Carbon Sequestration Partnership, one of seven partnerships in the U.S. Department of Energy's Regional Carbon Sequestration Partnerships program, has successfully injected 1,000 metric tons of carbon dioxide (CO2) into the Mount Simon Sandstone, a deep saline formation that is widespread across much of the Midwest.

  4. Structural and tectonic implications of pre-Mt. Simon strata -- or a lack of such -- in the western part of the Illinois basin

    SciTech Connect (OSTI)

    Sargent, M.L. (Illinois State Geological Survey, Champaign, IL (United States))

    1993-03-01T23:59:59.000Z

    The discovery of a pre-Mt. Simon lithic arenite (arkose) in southwestern Ohio has lead to reevaluation of many basement tests in the region. Several boreholes in adjacent states have been reexamined by others and are now believed to bottom in the Middle Run Formation. Seismic-reflection sections in western Ohio and Indiana have indicated pre-Mt. Simon basins filled with layered rocks that are interpreted to be Middle Run, however, the pre-Mt. Simon basins and east of Illinois. Samples from Illinois basement tests were reexamined to determine whether they had encountered similar strata. All reported crystalline-basement tests in Illinois show diagnostic igneous textures and mineralogical associations. Coarsely crystalline samples in cores show intergrown subhedral grains of quartz, microcline, and sodic plagioclase. Medium-crystalline rocks in cuttings samples show numerous examples of micrographic intergrowths of quartz and K-feldspar. This texture cannot be authigenically grown in a sediment and probably could not have survived a single cycle of erosion and deposition. Aphanitic rocks show porphyritic and spherulitic textures that are distinctly igneous and would be destroyed by weathering. Substantial relief on the Precambrian crystalline surface in Illinois is postulated for major structural features like the LaSalle Anticlinorium, the Sparta Shelf, the Ste. Genevieve Fault zone, etc. Paleotopographic relief up to 300 m (1,000 feet) is documented from drilling on the western flank of the basin.

  5. PowerPoint Presentation

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

    - 400sec 464 MMscfd - Minimum Pressure - 830 psi CAES Aquifer Storage System Geology of Iowa Mt. Simon Sandstone Jordan Sandstone St. Peter Sandstone Glenwood Fm....

  6. CO{sub 2} Injectivity, Storage Capacity, Plume Size, and Reservoir and Seal Integrity of the Ordovician St. Peter Sandstone and the Cambrian Potosi Formation in the Illnois Basin

    SciTech Connect (OSTI)

    Hannes Leetaru; Alan Brown; Donald Lee; Ozgur Senel; Marcia Coueslan

    2012-05-01T23:59:59.000Z

    The Cambro-Ordovician strata of the Illinois and Michigan Basins underlie most of the states of Illinois, Indiana, Kentucky, and Michigan. This interval also extends through much of the Midwest of the United States and, for some areas, may be the only available target for geological sequestration of CO{sub 2}. We evaluated the Cambro-Ordovician strata above the basal Mt. Simon Sandstone reservoir for sequestration potential. The two targets were the Cambrian carbonate intervals in the Knox and the Ordovician St. Peter Sandstone. The evaluation of these two formations was accomplished using wireline data, core data, pressure data, and seismic data from the USDOE-funded Illinois Basin â?? Decatur Project being conducted by the Midwest Geological Sequestration Consortium in Macon County, Illinois. Interpretations were completed using log analysis software, a reservoir flow simulator, and a finite element solver that determines rock stress and strain changes resulting from the pressure increase associated with CO{sub 2} injection. Results of this research suggest that both the St. Peter Sandstone and the Potosi Dolomite (a formation of the Knox) reservoirs may be capable of storing up to 2 million tonnes of CO{sub 2} per year for a 20-year period. Reservoir simulation results for the St. Peter indicate good injectivity and a relatively small CO{sub 2} plume. While a single St. Peter well is not likely to achieve the targeted injection rate of 2 million tonnes/year, results of this study indicate that development with three or four appropriately spaced wells may be sufficient. Reservoir simulation of the Potosi suggest that much of the CO{sub 2} flows into and through relatively thin, high permeability intervals, resulting in a large plume diameter compared with the St. Peter.

  7. Simon Fraser University's

    E-Print Network [OSTI]

    a happy second home in the Indigenous Student Centre. Simon Fraser University recognizes the value graduated from Fraser Valley College in 1980 with a diploma in Social Services. Theresa feels her strength

  8. Student Awards Simon Fraser University

    E-Print Network [OSTI]

    Student Awards Simon Fraser University #12;SIMON FRASER UNIVERSITY Simon Fraser University (SFU-changing and challenging world. SCHOLARSHIPS, BURSARIES AND AWARDS A student award is an investment in people, in education from university because of financial reasons. A bursary is a financial award that is given to a student

  9. IMPROVING SANDSTONE MATRIX STIMULATION OF OIL

    E-Print Network [OSTI]

    Abu-Khamsin, Sidqi

    products and the oil that otherwise would be contacted. This paper pre- sents the resultsIMPROVING SANDSTONE MATRIX STIMULATION OF OIL WELLS BY GAS PRECONDITIONING M. A. Aggour, M. Al, Dhahran, Saudi Arabia ABSTRACT Experience has shown that for sandstone formations, oil wells respond

  10. Porosity prediction in sandstones using erosional unconformities

    SciTech Connect (OSTI)

    Shanmugam, G.

    1989-03-01T23:59:59.000Z

    Erosional unconformities of subaerial origin are created by tectonic uplifts and eustatic sea level fall. Most erosional unconformities developed on sandstones are planes of increased porosity because uplifted sandstones are exposed to undersaturated CO/sub 2/-charged meteoric waters that result in dissolution of unstable framework grains and cements. The chemical weathering of sandstones is intensified in humid regions by the heavy rainfall, soil zones, lush vegetation, and accompanying voluminous production of organic and inorganic acids. Erosional unconformities are considered hydrologically open systems because of abundant supply of fresh meteoric water and relatively unrestricted transport of dissolved constituents away from the site of dissolution, causing a net gain in porosity near unconformities. Thus, porosity in sandstones tends to increase toward overlying unconformities. Such porosity trends have been observed in hydrocarbon-bearing sandstone reservoirs in Alaska, Algeria, Australia, China, Libya, Netherlands, Norwegian North Sea, Norwegian Sea, and Texas. A common attribute of these reservoirs is that they were all subaerially exposed under heavy rainfall conditions. An empirical model has been developed for the Triassic and Jurassic sandstone reservoirs in the Norwegian North Sea on the basis of the observed relationship that shows an increase in porosity in these reservoirs with increasing proximity to the overlying base of Cretaceous unconformity. An important practical attribute of this model is that it allows for the prediction of porosity in the neighboring undrilled areas by recognizing the base of Cretaceous unconformity in seismic reflection profiles and by constructing subcrop maps.

  11. Provenance of Norphlet sandstone, northern Gulf Coast

    SciTech Connect (OSTI)

    Ryan, W.P.; Ward, W.C.; Kuglar, R.L.

    1987-09-01T23:59:59.000Z

    The Upper Jurassic Norphlet sandstone of the northern Gulf Coast is predominantly subarkose, with some arkose in the eastern area and sublitharenite and quartzarenite in the western area. Despite great depths of burial and despite feldspar and rock-fragment constituents, diagenesis has not appreciably altered the composition of Norphlet sandstone. Therefore, reconstruction of original composition of Norphlet sandstone presented little difficulty. Variation in detrital modes of the Norphlet suggests compositionally distinct source terranes. Samples from Florida, Alabama, and Mississippi reflect the influence of metamorphic and plutonic rocks of the Appalachian Piedmont Province and of Triassic-Jurassic volcanic rocks. Sandstones in east Texas, northern Louisiana, and southern Arkansas were derived from sedimentary and metasedimentary rocks of the Ouachita system. The Arbuckle Mountains and Llano uplift may have supplied trace amounts of quartzo-feldspathic and volcanic-rock fragments to the extreme western part of the study area. Norphlet sandstones represent a mixture of collision-orogen-derived sediment from the Appalachian and/or Ouachita system and continental-block-derived sediment from paleohighs and uplifts within the Gulf basin. However, Norphlet sandstones plot in the craton-interior and transitional-continental fields on Q-F-L and QM-F-Lt tectonic-provenance diagrams, because of mineralogically mature source rocks, elimination of unstable grains by abrasion and sorting during deposition, and/or sediment mixing from different source terranes.

  12. Running head: Diagenesis of Beacon Sandstone Diagenetic history of Triassic sandstone from the Beacon Supergroup in

    E-Print Network [OSTI]

    Boyer, Edmond

    1 Running head: Diagenesis of Beacon Sandstone Diagenetic history of Triassic sandstone from of shallow burial diagenesis, contact diagenesis (temperatures of 200-300ºC), and post-contact diagenesis, on the basis of petrographic and geochemical analyses. Shallow burial diagenesis is characterised by minor

  13. Simon Gervais Professor of Finance

    E-Print Network [OSTI]

    Reif, John H.

    Simon Gervais Professor of Finance Faculty CoDirector of the Center for Financial Excellence Simon Gervais is a Full Professor of Finance at The Fuqua School of Business. Prior to joining Fuqua in 2003, he was an Assistant Professor of Finance at the Wharton School of the University of Pennsylvania

  14. ELASTIC ROCK PROPERTIES OF TIGHT GAS SANDSTONES FOR RESERVOIR CHARACTERIZATION

    E-Print Network [OSTI]

    to successfully produce low permeability gas reservoirs. My study links rock physics to well log and seismic data shales to reservoir sandstones. Typically, the presence of gas-saturated sandstones lowers the Vp/Vs evenELASTIC ROCK PROPERTIES OF TIGHT GAS SANDSTONES FOR RESERVOIR CHARACTERIZATION AT RULISON FIELD

  15. Fire Clay coal and sandstone washouts

    SciTech Connect (OSTI)

    Andrews, W.M. Jr.; Hower, J.C. (Univ. of Kentucky, Lexington, KY (United States). Center for Applied Energy Research)

    1992-01-01T23:59:59.000Z

    The Fire Clay coal bed has been studied in a portion of southeastern Kentucky. This seam is easily recognizable by a distinctive flint clay parting. Mine maps, field descriptions, and laboratory investigations were used to investigate this coal bed. Several elongate sandstone bodies cut the seam in the study area. These sandstone bodies are subparallel roughly east-west, and are typically 10[sup 1] to 10[sup 2] m wide, and 10[sup 2] m to tens of kilometers long. These sandstone washouts occur in areas overlain by a larger channel sandstone, which usually is found associated with the thickest areas of the coal seam. In south-central Perry County, a cross section of one washout area was well exposed. North of the washout, a 4 to 7 cm thick cannel coal was present at the base of the sequence. The coal on the north side of the cutout gradually thins from 2 m to 1.5 m away from the washout. On the south side of the washout, the coal thins abruptly from over 1.5 m to 1.25 m within 30 m of the channel. An island of slumped and slickensided coal is present within the washout region. Postdepositional differential compaction of the peat is inferred to be the control on placement of the channel system. The areas of thickest peat compacted the most, creating topographic lows through which the stream moved. The regions of thick coal were probably the result of several controlling factors. Predepositional differential compaction and erosion may have produced relief which influenced peat development. Lithologic and geochemical continuity across the channel is good, supporting postdepositional emplacement of the sandstone bodies.

  16. Human Resources Simon Fraser University

    E-Print Network [OSTI]

    Kavanagh, Karen L.

    Human Resources Simon Fraser University Administrative and Professional Staff Job Description A. Identification Position Number: 31482 Position Title: Administrative Assistant (Human Resources Liaison) Name guidance, direction, coordination and effective management and implementation of SFU's Human Resources

  17. HUMAN RESOURCES SIMON FRASER UNIVERSITY

    E-Print Network [OSTI]

    ) by coordinating budget submissions, estimating and preparing cost projections, liaising with PurchasingHUMAN RESOURCES SIMON FRASER UNIVERSITY ADMINISTRATIVE & PROFESSIONAL JOB DESCRIPTION Position of the position in one or two sentences. Manages the Department's operating, capital, temporary instruction

  18. HUMAN RESOURCES SIMON FRASER UNIVERSITY

    E-Print Network [OSTI]

    funding priorities, budget consideration, application requirements, University policies and proceduresHUMAN RESOURCES SIMON FRASER UNIVERSITY ADMINISTRATIVE & PROFESSIONAL JOB DESCRIPTION Position to Canadian and international funding agencies. The incumbent will assist with the writing and reviewing

  19. Radionuclide transport in sandstones with WIPP brine

    SciTech Connect (OSTI)

    Weed, H.C.; Bazan, F.; Fontanilla, J.; Garrison, J.; Rego, J.; Winslow, A.M.

    1981-02-01T23:59:59.000Z

    Retardation factors (R) have been measured for the transport of /sup 3/H, /sup 95m/Tc, and /sup 85/Sr in WIPP brine using St. Peter, Berea, Kayenta, and San Felipe sandstone cores. If tritium is assumed to have R=1, /sup 95m/Tc has R=1.0 to 1.3 and therefore is essentially not retarded. Strontium-85 has R = 1.0 to 1.3 on St. Peter, Berea, and Kayenta, but R=3 on San Felipe. This is attributed to sorption on the matrix material of San Felipe, which has 45 volume % matrix compared with 1 to 10 volume % for the others. Retardation factors (R/sub s/) for /sup 85/Sr calculated from static sorption measurements are unity for all the sandstones. Therefore, the static and transport results for /sup 85/Sr disagree in the case of San Felipe, but agree for St. Peter, Berea, and Kayenta.

  20. M.T. Thomas Recipient Named | EMSL

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

    M.T. Thomas Recipient Named M.T. Thomas Recipient Named EMSL Recognizes Patrick Roach for Postdoc Achievement Dr. Patrick Roach Patrick Roach, now an environmental scientist at...

  1. SIMON FRASER UNIVERSITY OUTSTANDING ALUMNI AWARDS

    E-Print Network [OSTI]

    Kavanagh, Karen L.

    SIMON FRASER UNIVERSITY OUTSTANDING ALUMNI AWARDS CALL FOR NOMINATIONS Simon Fraser University for the 2013 SFU Outstanding Alumni Awards. Each year the Alumni Association of Simon Fraser University honours Fraser University. The first awards were presented in 1983 and a list of former award winners is attached

  2. A Submarine Welded Ignimbrite-Crystal-Rich Sandstone Facies Associatio...

    Open Energy Info (EERE)

    Ignimbrite-Crystal-Rich Sandstone Facies Association In The Cambrian Tyndall Group, Western Tasmania, Australia Jump to: navigation, search OpenEI Reference LibraryAdd to...

  3. Depositional environment and reservoir morphology of the Upper Wilcox sandstones, Katy gas field, Waller County, Texas 

    E-Print Network [OSTI]

    DePaul, Gilbert John

    1979-01-01T23:59:59.000Z

    and structural characteristics of the field. The Upper Wilcox is divided into the following units, in ascending order, "First Lower Massive" sandstones and "D", "C", "B", "A", "Second Wilcox" and "First Wilcox" interbedded sandstones and shales. The reservoir... and are generally abruptly overla1n by sandstones with sharp or erosional bases. The sandstones change laterally to thin sandstones interlaminated with thick shales. The thick sandstones are submarine, constructional- channel deposits with associated thin...

  4. Seawater can damage Saudi sandstone oil reservoirs

    SciTech Connect (OSTI)

    Dahab, A.S. (King Saud Univ., Riyadh (SA))

    1990-12-10T23:59:59.000Z

    Experiments have shown that formation damage from waterflooding of the Aramco and Alkhafji sandstones of Saudi Arabia will not occur if the salinity of the injected brines is higher than 20% NaCl. Because the connate water in these reservoirs has a high salt content of up to 231,000 ppm, Saudi oil fields are almost always susceptible to formation damage when flooded with seawater (about 38,500 ppm). The productive behavior of a reservoir can be affected by clay crystals developed within rock pores.

  5. Diagenesis of Miocene sandstones, South Louisiana

    E-Print Network [OSTI]

    Smith, Richard Lee

    1983-01-01T23:59:59.000Z

    . The iona in this water may become part of an authigenic constituent of the sandstone (Boles and Franks, 1979). Drilling History Weeks Island Field. ? This field is located in Township 14 South, Ranges 6 and 7 East in Iberia Parish, Louisiana..., following water injection. Tertiary recovery was planned for this high-temperature, high-pre. . sure reservoir ro extract the residual oil (Perry, 1978). East Ba ou Postillion Field. ? This field i located in Townships 12 and 13 South, Ranges 11 and 12...

  6. Simon Fraser University TWARDS 2008

    E-Print Network [OSTI]

    American Statistical Association Fellowship MacEachern, James Geological Association of Canada W.W. Hutchison Medal Mann, Geoff American Political Science Association Michael Harrington Best Book Award Mc Association's Cecilia I. Johnstone Award Broun, David Simon Fraser University Faculty of Science Excellence

  7. Berea Sandstone reservoirs in Ashland and Medina Counties, Ohio

    SciTech Connect (OSTI)

    Hillebrand, L.B.; Coogan, A.H.

    1984-12-01T23:59:59.000Z

    The Berea Sandstone is one of the better known rock formations in Ohio. It occurs at shallow depths throughout a broad belt in central Ohio and crops out to the north and west of these counties. In Ashland and Medina Counties, the Berea may be divided into two separately identifiable units. The upper unit, called the blanket Berea in outcrop, is approximately equivalent to the cap Berea in the subsurface. The second unit, which lies below the cap Berea varies considerably in its thickness. The traditional, long-standing, and generally accepted view is that the Berea Sandstone was deposited in Ashland and Medina Counties in southward-flowing river channels. More recent drilling in these counties has demonstrated that these sand channels are not continuous, but are isolated sandstone bodies in which petroleum has accumulated. The reservoir capacity of the Berea is between 8 and 22% with an average porosity of 15%. The sandstone consists of loosely cemented, medium to fine-grained quartz with only rare shale breaks below the cap Berea. In Ashland and Medina Counties, Berea wells generally produce oil. Initial production in this area ranges between 1 or 2 bbl and to 40 BOPD after treatment. Reservoirs in the Berea Sandstone generally are productive where the sandstones are thick. They are also productive where the sandstone is thinner, but high on structure. Although a high structural position is preferred, the critical consideration is the thickness of the sandstone body and the reservoir geometry.

  8. Architecture of the upper Sego Sandstone, Book Cliffs, Utah

    E-Print Network [OSTI]

    Birkhead, Stanley Scott

    2006-04-12T23:59:59.000Z

    ................................................................................................................... 22 SEDIMENTOLOGY.................................................................................................... 26 Marine Shale with Wavy Sandstones............................................................... 26 Highly... surfaces. The cross-section defines an 8.5 kilometer section that begins in Sego Canyon outside of Thompson Springs, Figure 12-Bedding diagram of major facies transitions with sedimentary logs overlain. SEDIMENTOLOGY Upper Sego Sandstone deposits can...

  9. Compaction of Norphlet sandstones, Rankin County, Mississippi

    SciTech Connect (OSTI)

    McBride, E.F.

    1987-09-01T23:59:59.000Z

    Fabric and porosity changes resulting from compaction were studied in sandstones from three cores sampled at depths between 15,900 and 22,500 ft. Point counts of 30 thin sections indicate that 0.4% of the rock volume was lost by ductile grain deformation and 3% by pressure solution at both grain contacts and at widely spaced stylolites. Pre-cement porosities of eolian sandstone range from 27 to 35% (mean = 29%), indicating that a total of from 10 to 18% porosity (mean = 16%) was lost by compaction (assuming 45% initial porosity). The difference between the total porosity loss and the sum of the other two processes is assumed to be the porosity lost by grain rearrangement (mean = 12.6%). The amount of pressure solution at grain contacts for each well is independent of depth, temperature, and amount of both quartz cement and total cement. Stylolites transect both grains and cements, which indicates they formed late in the diagenetic sequence. Silica released by pressure solution at quartz grain contacts could not be the sole source and was probably not even the major source of quartz cement in the formation, because cementation by quartz preceded the episode of strong pressure solution. In addition, the volume of silica released by pressure solution appears to have been inadequate to provide the volume of quartz cement present.

  10. Microsoft Word - MtRichmond_CX

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

    Dorie Welch Project Manager - KEWM-4 Proposed Action: Mt. Richmond property funding Fish and Wildlife Project No.: 2011-003-00, BPA-007071 Categorical Exclusion Applied (from...

  11. Imprecise reliability by evidential networks Christophe SIMON and Philippe WEBER

    E-Print Network [OSTI]

    Boyer, Edmond

    Imprecise reliability by evidential networks Christophe SIMON and Philippe WEBER October 3, 2008 to adequately tell variability from imprecision. Many representations exist C. Simon and Ph. Weber

  12. Harmonic Cheeger-Simons characters with applications

    E-Print Network [OSTI]

    Richard Green; Varghese Mathai

    2009-02-13T23:59:59.000Z

    We initiate the study of harmonic Cheeger-Simons characters, with applications to smooth versions of the Geometric Langlands program in the abelian case.

  13. Major discoveries in eolian sandstone: facies distribution and stratigraphy of Jurassic Norphlet sandstone, Mobile Bay, Alabama

    SciTech Connect (OSTI)

    Levy, J.B.

    1985-02-01T23:59:59.000Z

    Recent exploratory and development drilling in Mobile Bay, southwest Alabama, has proven prolific gas production from the Norphlet sandstone at depths greater than 20,000 ft with individual well tests of 10-27 MMCFGD. Excellent reservoir qualities are a function of preserved primary porosity and permeability developed in an eolian setting. In Mobile Bay, thick eolian sediments (200-600 ft) lie directly on Pine Hill or Louann evaporites. Three facies of the Norphlet have been recognized: (1) a thin (20-30 ft) basal wet sand flat or sabkha facies, (2) a massive dune facies, and (3) a thin (30-40 ft) upper marine reworked facies. The wet sand flat or sabkha facies is characterized by irregular to wavy horizontally bedded sandstone associated with adhesion ripples. It is probably sporadically developed in response to localized wet lows during earliest Norphlet deposition. The majority of the Norphlet section is characterized by massive wedge-planar and tabular-planar cross-stratified sandstone, interpreted to be stacked dune and dry interdune deposits. Individual dune sets range in height from a few feet to 90 ft. Cross-bed sets exhibit internal stratification patterns similar to large- and small-scale dunes described by G. Kocurek and R. Dott, Jr. The marine reworked facies is characterized by structureless to diffuse or wavy laminated sandstone that reflects a reworking of the dune deposits by the ensuing Smackover transgression. Reservoir quality is affected by textural properties determined by depositional processes associated with these various facies. Diagenetic patterns further reducing reservoir quality occur in the depositionally less-porous sediments. Dune facies sediments exhibit the best reservoir qualities. Variations of reservoir quality within the dune facies are related to dune height and dune versus interdune accumulations.

  14. Feldspar diagenesis in the Yowlumne sandstone, Kern County, California 

    E-Print Network [OSTI]

    Pike, John David

    1981-01-01T23:59:59.000Z

    reactions; (3) precipitation of minerals; and (4) mineral dissolution (Blatt et al, , 1972). Semi-permeable clay membranes commonly change pore water salinity in sandstones. If waters are flowing out of sandstones into shales, the sandstone waters... is reduced Ca~ may be released to pore waters by carbonate dis- solution as shown by the reaction: CaC03 + H+ = Ca~ + HCO3. (3) Reduction in pH may also promote hydrolysis of relatively unstable Ca-silicate minerals, such as plagioclase, selectively...

  15. Agassiz Glacier Glacier National Park, MT

    E-Print Network [OSTI]

    Agassiz Glacier Glacier National Park, MT Greg Pederson photo USGS USGS Repeat Photography Project Glacier Glacier National Park, MT Greg Pederson photo USGS USGS Repeat Photography Project http://nrmsc.usgs.gov/repeatphoto/ 2005 M. V. Walker photo courtesy of GNP archives1943 #12;Blackfoot ­ Jackson Glacier Glacier National

  16. ALSEP-MT-06 APOLLO LUNAR SURFACE

    E-Print Network [OSTI]

    Rathbun, Julie A.

    ALSEP-MT-06 APOLLO LUNAR SURFACE EXPERIMENTS PACKAGE (ALSEP) APOLLO 16 ALSEP ARRAY D FLIGHT July 1971 A #12;ALSEP-MT-06 INTRODUCTION The Apollo 16 LWlar Surface Expe riments Package (ALSEP of the Moon consistent with the scientific objectives of the Apollo Program. The measur ement data

  17. Feldspar diagenesis in the Yowlumne sandstone, Kern County, California

    E-Print Network [OSTI]

    Pike, John David

    1981-01-01T23:59:59.000Z

    FELDSPAR DIAGENESIS IN THE YOWLUMNE SANDSTONE& KERN COUNTY& CALIFORNIA A Thesis by JOHN DAVID PIKE Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... December 1981 Major Subject: Geology FELDSPAR DIAGENESIS IN THE YOWLUMNE SANDSTONE, KERN COUNTY, CALIFORNIA A Thesis by JOHN DAVID PIKE Approved as to style and content by: (Chairman of Committee) ( mber) (Me er) (He'a' of Dep rtment) December...

  18. Provenance and diagenesis of the Ivishak Sandstone, northern Alaska 

    E-Print Network [OSTI]

    Burch, Gary Kenneth

    1984-01-01T23:59:59.000Z

    PROVENANCE AND DIAGENESIS OF THE IVISHAK SANDSTONE, NORTHERN ALASKA A Thesis by GARY KENNETH BURCH Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for tbe degree of MASTER OF SCIENCE... August 1984 Major Subject: Geology PROVENANCE AND DIAGENESIS OF THE IVISHAK SANDSTONE, NORTHERN ALASKA A Thesis by GARY KENNETH BURGH Approved as to style and content by: Jam . Mazzullo (Chairman of Committee) Robert R. Berg (Member) Robert C...

  19. Noncommutative Chern-Simons soliton

    SciTech Connect (OSTI)

    Ghosh, Subir [Physics and Applied Mathematics Unit, Indian Statistical Institute, 203 B. T. Road, Calcutta 700108 (India)

    2004-10-15T23:59:59.000Z

    We have studied noncommutative extension of the relativistic Chern-Simons-Higgs model, in the first nontrivial order in {theta}, with only spatial noncommutativity. Both Lagrangian and Hamiltonian formulations of the problem have been discussed, with the focus being on the canonical and symmetric forms of the energy-momentum tensor. In the Hamiltonian scheme, constraint analysis and the induced Dirac brackets have been provided. The space-time translation generators and their actions on the fields are discussed in detail. The effects of noncommutativity on the soliton solutions have been analyzed thoroughly and we have come up with some interesting observations. Considering the relative strength of the noncommutative effects, we have shown that there is a universal character in the noncommutative correction to the magnetic field--it depends only on {theta}. On the other hand, in the cases of all other observables of physical interest, such as the potential profile, soliton mass, or the electric field, {theta} as well as {tau} (the latter comprised solely of commutative Chern-Simons-Higgs model parameters) appear on similar footings. Lastly, we have shown that noncommutativity imposes a further restriction on the form of the Higgs field so that the Bogomolny-Prasad-Sommerfeld equations are compatible with the full variational equations of motion.

  20. Material invariant properties and reconstruction of microstructure of sandstones by nanoindentation and microporoelastic analysis

    E-Print Network [OSTI]

    Bobko, Christopher Philip, 1981-

    2005-01-01T23:59:59.000Z

    The diversity of sandstones and sandstone properties that exist in nature pose a significant problem for engineers who deal with these materials, whether in oil well exploration and exploitation or art and architectural ...

  1. Digital outcrop mapping of a reservoir-scale incised valley fill, Sego Sandstone, Book Cliffs, Utah

    E-Print Network [OSTI]

    Fey, Matthew F.

    2009-06-02T23:59:59.000Z

    methodologies are demonstrated by mapping rock variations and stratal geometries within several kilometers-long, sub-parallel exposures of the Lower Sego Sandstone in San Arroyo Canyon, Book Cliffs, Utah. The digital outcrop model of the Lower Sego Sandstone...

  2. An investigation of the effectiveness of anhydrous mud acid to remove damage in sandstone formations 

    E-Print Network [OSTI]

    Haase, Dalan David

    1998-01-01T23:59:59.000Z

    The goal of this experimental research was to determine the reactivity of anhydrous mud acid with clay minerals present in sandstone formations and its ability to remove damage in sandstone acidizing. Berea core flood experiments were conducted...

  3. Identification of Pore Structure and Clay Content from Seismic Data within an Argillaceous Sandstone Reservoir 

    E-Print Network [OSTI]

    Schelstrate, Robert

    2014-08-11T23:59:59.000Z

    Sandstone facies are good reservoirs for the accumulation of hydrocarbons in conventional exploration due to high porosity and permeability. Grain size variations within a sandstone reservoir can range from pebbles to shale, depending...

  4. Depositional environment and reservoir morphology of the Upper Wilcox sandstones, Katy gas field, Waller County, Texas

    E-Print Network [OSTI]

    DePaul, Gilbert John

    1979-01-01T23:59:59.000Z

    overbank sandstones. Sandstones become thinner and less frequent upward in the section. Thin sand- stones 1n the predominantly shale section are widespread and exhibit sedimentary structures commonly observed in turbidity-current deposits (ABCDE, ABDE... feet of depth. Production in the Upper Wilcox section is from multiple sandstone units within a shale section on a local structural closure (Fig. 2). The properties of these sandstone units and the local stratigraphic variation determine...

  5. Depositional environment and reservoir morphology of Canyon sandstones, Central Midland Basin, Texas 

    E-Print Network [OSTI]

    Jones, James Winston

    1980-01-01T23:59:59.000Z

    and Irion Counties indicate that Canyon sandstones in Irion County are younger than Canyon sandstones at Jameson field. Canyon sandstones at Brooks field in eastern Irion County (Fig. I) occur above the Fli ppen basinal shale "marker" (Elton, Rodgers... with the underly1ng shale is sharp; 7017 ft. 25 Fig. 9 Sedimentary structures in Canyon "A" sandstones, Union Texas Petroleum Sugg 4-1, Burnt Rock field, Lucky Canyon area, Irion County, Texas. Boldface letters (lower left) refer to photographs; small...

  6. Depositional environment of lower cretaceous Mitchell sandstone, St. Mary and Duty fields, Lafayette County, Arkansas

    E-Print Network [OSTI]

    Mazzullo, Elsa Kapitan

    1983-01-01T23:59:59.000Z

    of the first facies are composed of stacked sandstone sets with a mean grain size of 0. 17 mm (fine grained) and a composition of 78% quartz, 11% rock fragments (predominantly polycrystalline quartz), and 9% matrix. The grain size and quartz : matrix ratio... sediments transported by the easterly-flowing long- shore currents. The thin, carbonaceous washover "A" and "B" sandstones of the second facies and the "A" sandstone of the third facies are finer grained and less quartzose than the barrier sandstones...

  7. Depositional environment of downdip Yegua (Eocene) sandstones, Jackson County, Texas

    E-Print Network [OSTI]

    Whitten, Christopher James

    1988-01-01T23:59:59.000Z

    as the geometry of the growth fault alters the reservoir morphology, The sandstones are fine to medium grained. Grain size within beds fines upward from 0. 40 mm at the base to 0. 13 mm at the top. The sandstones contain an average of 50% quartz... along the downthrown side of a growth fault that has 550 ft (167. 6 m) of throw. The channels form dip-trending bodies on the updip side of the growth fault, but form a strike trending, elongate body on the downthrown side of the fault...

  8. Z .Chemical Geology 152 1998 227256 The thermal and cementation histories of a sandstone petroleum

    E-Print Network [OSTI]

    Z .Chemical Geology 152 1998 227­256 The thermal and cementation histories of a sandstone petroleum-feldspars recovered at various depths from a deep well drilled through a carbonate-cemented sandstone petroleum of a sandstone petroleum xreservoir, Elk Hills, California. Part 2: In situ oxygen and carbon isotopic results

  9. Mt Wheeler Power, Inc | 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 directedAnnual SiteofEvaluatingGroup |JilinLu anMicrogreenMoon LakeMountain ElectricMt Princeton HotMt

  10. Mt. Baker Geothermal Project | 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 JumpMarysville,Missoula,MontereyHill,Spurr GeothermalInformationMtMt. Baker

  11. Evaluating Berea Sandstone reservoirs in eastern Ashland County, Ohio

    SciTech Connect (OSTI)

    Hillebrand, L.B.; Coogan, A.H.

    1986-08-01T23:59:59.000Z

    The Berea Sandstone is a principal oil and gas reservoir in eastern Ashland County. It is stratigraphically situated above the red and gray Bedford shales and below the black Sunbury shale member of the Cuyahoga Formation, all of which are Late Devonian or Early Mississippian in age. In the study area, the Berea Sandstone is found at depths between 400 and 800 ft. It outcrops in an arcuate band to the north and west of the county. Geophysical logs indicate the reservoir capacity of the Berea is between 8 and 22%, with an average porosity of 15%. Generally, the Berea is a loosely cemented, gray to buff quartzose sandstone with few accessory minerals. The cement may be calcite, silica, or minor ferruginous materials. The reservoir geometry in eastern Ashland County is peculiar because these sands thin and thicken within relatively short distances. The long-standing explanation for this phenomenon is that these sands were deposited in incised river channels that had downcut through the Bedford shales as a result of isolated uplift in north-central Ohio. Recent subsurface mapping in this area shows that the continuity of these channels may be challenged. Also, well-ticket data indicate that red shale occurs above the Berea sands. This occurrence and the soft-sediment deformation between the Bedford Shale and Berea Sandstone indicate that these units were deposited contemporaneously rather than as two separate events.

  12. Berea Sandstone gas reservoirs in Portage County, Ohio

    SciTech Connect (OSTI)

    Coogan, A.H.; Heath, L.L.

    1984-12-01T23:59:59.000Z

    The Mississippian Berea Sandstone is a reservoir for shallow gas in Randolph and Suffield townships of Portage County, Ohio. The Berea Sandstone is well known in Ohio from its outcrops at the outskirts of Cleveland. It is among the more productive formations in Ohio where it yields gas, oil, or gas and oil at moderate to very shallow depths. The great differences in reservoir quality, sandstone distribution, and producibility in Berea oil and gas fields are partly related to the use of the term Berea for several sandstone bodies that produce from different structural and stratigraphic settings. In Portage County, the Berea Sandstone is up to 60 ft (18 m) thick and has a porosity in the 15-25% range. The sand is white, medium to fine-grained quartz, poorly cemented, and without substantial shale interbeds. The reservoir lies below the Cap Berea, a gray, cemented thin bed at the base of the Sunbury Shale (driller's Coffee shale). In Portage County, the sand is currently interpreted as fluvial or deltaic. Within the field, thickness of the reservoir and hydrocarbon saturated zone varies little. Natural gas is produced from the top 30 ft (9 m) of the reservoir. The reservoir energy is water drive. The gas fields lie just updip from a steep structural terrace interpreted as a fault zone. The trap for the fields is anticlinal and the Sunbury Shale is the seal. New wells drilled into the reservoir at 400-500 ft (122-152 m) in depth produce gas without water. Initial open flow tested up to 1.0 MMCFGD at an initial reservoir pressure of about 80 psig (552 kPa).

  13. MT STROMLO OBSERVATORY VISITOR GUIDE & WALK

    E-Print Network [OSTI]

    Botea, Adi

    to the Observatory and construction of a new Advanced Instrumentation and Technology Centre was begun. You can watch, the University of NSW, and the Faulkes Telescope Project. Mt Stromlo began operation as the Commonwealth Solar Optical Munitions Factory. After the war, the Observatory changed from solar to stellar astronomy

  14. Petrologic and petrophysical evaluation of the Dallas Center Structure, Iowa, for compressed air energy storage in the Mount Simon Sandstone.

    SciTech Connect (OSTI)

    Heath, Jason E.; Bauer, Stephen J.; Broome, Scott Thomas; Dewers, Thomas A.; Rodriguez, Mark Andrew

    2013-03-01T23:59:59.000Z

    The Iowa Stored Energy Plant Agency selected a geologic structure at Dallas Center, Iowa, for evaluation of subsurface compressed air energy storage. The site was rejected due to lower-than-expected and heterogeneous permeability of the target reservoir, lower-than-desired porosity, and small reservoir volume. In an initial feasibility study, permeability and porosity distributions of flow units for the nearby Redfield gas storage field were applied as analogue values for numerical modeling of the Dallas Center Structure. These reservoir data, coupled with an optimistic reservoir volume, produced favorable results. However, it was determined that the Dallas Center Structure cannot be simplified to four zones of high, uniform permeabilities. Updated modeling using field and core data for the site provided unfavorable results for air fill-up. This report presents Sandia National Laboratories' petrologic and petrophysical analysis of the Dallas Center Structure that aids in understanding why the site was not suitable for gas storage.

  15. ExcellentSwimmers,forJB's60birthday.AntonioDeSimone,SISSA(Trieste,ITALY)1 AntonioDeSimone

    E-Print Network [OSTI]

    Eilbeck, Chris

    ExcellentSwimmers,forJB's60°birthday.AntonioDeSimone,SISSA(Trieste,ITALY)1 AntonioDeSimone SISSA InternationalSchoolforAdvancedStudies Trieste,Italy F.Alouges,ADS,A.Lefebvre,OptimalstrokesforlowReswimmers:anexample J.NonlinearSci,18,277-302(2008) #12;ExcellentSwimmers,forJB's60°birthday.AntonioDeSimone,SISSA(Trieste

  16. Estimating sandstone permeability using network models with pore size distributions

    E-Print Network [OSTI]

    Mathews, Alan Ronald

    1991-01-01T23:59:59.000Z

    the effects of each parameter on the response of the network lattice. A FoR+RAv source code was written to generate and analyze the response of the network model (see Appendix G for source code description and flow chart). The controlling parameters used... in appearance to empirical data. A network model is developed to simulate the pore geometry of a clean, well-sorted sandstone. Pores were modeled as straight capillaries connected in various lattice configurations. Complex lattice configurations produce more...

  17. Oil Trading Simon Basey / November 28, 2013

    E-Print Network [OSTI]

    Sheldon, Nathan D.

    of oil and gas. #12;9 Trading tactics · ARBITRAGE: trade the dislocation of prices between geographicalOil Trading Simon Basey / November 28, 2013 #12;2 What does IST do? Imports crude oil and other Markets BP's equity crude oil, NGLs and natural gas Generates entrepreneurial trading income Manages BP

  18. UNIVERSIDAD SIMON BOLIVAR VICE-RECTORADO ADMINISTRATIVO

    E-Print Network [OSTI]

    Vásquez, Carlos

    DISEÃ?O, ARQUITECTURA Y ARTES PLASTICAS. OFICINA DE ORGANIZACION Y SISTEMAS #12;UNIVERSIDAD SIMON BOLIVAR de 77 L DEPARTAMENTO DE DISEÃ?O, ARQUITECTURA Y ARTES PLASTICAS INDICE DE CONTENIDO 1. ORGANIZACION. 1 DISEÃ?O, ARQUITECTURA Y ARTES PLASTICAS 3. DESCRIPCION DE CARGOS 3.1. Jefatura del Departamento. 3

  19. Controls on hydrocarbon production from Lower Silurian Clinton sandstone reservoir in Portage County, Ohio

    SciTech Connect (OSTI)

    Wilson, J.T.; Coogan, A.H. (Kent State Univ., OH (USA))

    1989-08-01T23:59:59.000Z

    The Lower Silurian Clinton section (Ordovician Queenston Shale to Packer Shell/Brassfield Limestone) represents a deltaic sequence in Portage County where it occurs approximately 25 mi east of the delta edge and 50 mi east of the sandstone depositional limit. In Portage County, the Clinton section is approximately 190 ft thick. The mean sandstone thickness is 53 ft (range from > 100 to < 10 ft). The mean sandstone thickness is much greater than it is for the Clinton sandstone reservoir closer to the delta edge, where hydrocarbon production is comparable to, or surpasses that in Portage County. It is now evident that the occurrence of thick, clean Clinton sandstone is not the only primary geologic factor for high production from the reservoir. Two productive areas were studied to isolate controls on hydrocarbon occurrence and production. One area is structurally low, the other is structurally high, but both have about the same mean Clinton sandstone thickness.

  20. Drilling history and stratigraphic correlation of Rose Run sandstone of northeastern Ohio

    SciTech Connect (OSTI)

    Moyer, C.C.

    1988-08-01T23:59:59.000Z

    To date, 40 known tests have penetrated the Knox unconformity in Ashtabula, Lake, Trumbull, Geauga, and Portage Counties, Ohio. Prior to 1980, there were only 22 tests. Of these, only 10 penetrated and logged rocks older than the Rose Run sandstone. In the period 1980-1986, two Rose Run discoveries were drilled, one in New Lyme Township of Ashtabula County and one in Burton Township of Geauga County. Both discovery wells have been offset. Attempts have been made to correlate these two areas with older tests in northeastern Ohio and with the Rose Run sandstones of Coshocton County. In northeastern Ohio, preliminary studies indicate a Rose Run sandstone and/or dolomite interval approximately 100 ft thick. The upper 50 ft is predominantly sandstone and the lower 50 ft changes locally from sandstone to dolomite. The upper sandy member can be correlated to the A, B, and C sandstone units of Coshocton County.

  1. Environment of deposition of the Yowlumne sandstone: internal morphology and rock properties, Kern County, California 

    E-Print Network [OSTI]

    Royo, Gilberto Rafael

    1986-01-01T23:59:59.000Z

    Pherson, 1978; Berg, 1986) (Figure 1). In the southern and western parts of the basin the sandstone is replaced by cherty shales in which isolated sandstone bodies form excellent reservoirs. Table 1. Stratigraphic section in the Yowlumne area, Kern County...ENVIRONMENT OF DEPOSITION OF THE YOWLUMNE SANDSTONE: INTERNAL MORPHOLOGY AND ROCK PROPERTIES, KERN COUNTY, CALIFORNIA A Thesis by GILBERTO RAFAEL ROYO Submitted to the Graduate College of Texas A8M University in partial fulfillment...

  2. Diagenesis of the Dakota sandstone, West Lindrith Field, Rio Arriba County, New Mexico 

    E-Print Network [OSTI]

    Franklin, Stanley Powell

    1987-01-01T23:59:59.000Z

    , illite, mixed-layer clay, and vermiculite. The composition and texture of the Dakota sandstone has been pervasively altered by the diagenetic processes of compaction, authigenesis, and dissolution. Authigenic cements include quartz overgrowths, calcite... Texture and Mineralogy of Clay Minerals Types and Distribution of Porosity 26 26 35 44 58 PROVENANCE OF THE DAKOTA SANDSTONE DIAGENESIS OF THE DAKOTA SANDSTONE 69 Compaction Authigenesis Cementation Clay Authigenesis Dissolution and Secondary...

  3. Depositional environment of Red Fork sandstones, deep Anadarko Basin, western Oklahoma 

    E-Print Network [OSTI]

    Whiting, Philip Howard

    1982-01-01T23:59:59.000Z

    County (Fig. 2). The thicknesses of the sandstone sequences increases upward from 2. 0 cm to 30. 0 cm. These sandstones are characterized by repetitive sequences of laminated and rippled sandstones overlain by thin pelacic shales. The cored interval... Sedimentary structures in the Red Fork sandstones, Woods Switzer "C" 5-1 (photographs A through D), Southwest Leedey Field, 5-15N-21W, Roger Mills County, and Gulf Sprowls 1 (photographs E through J), 28-13N-23W, Roger Mills County. Boldface letters (lower...

  4. Greybull Sandstone Petroleum Potential on the Crow Indian Reservation, South-Central Montana

    SciTech Connect (OSTI)

    Lopez, David A.

    2002-05-13T23:59:59.000Z

    The focus of this project was to explore for stratigraphic traps that may be present in valley-fill sandstone at the top of the Lower Cretaceous Kootenai Formation. This sandstone interval, generally known as the Greybull Sandstone, has been identified along the western edge of the reservation and is a known oil and gas reservoir in the surrounding region. The Greybull Sandstone was chosen as the focus of this research because it is an excellent, well-documented, productive reservoir in adjacent areas, such as Elk Basin; Mosser Dome field, a few miles northwest of the reservation; and several other oil and gas fields in the northern portion of the Bighorn Basin.

  5. Mt Signal Geothermal Area | 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: navigation, searchOfRose BendMiasole IncMinutemanVistaZephyr)Mountain AirPeak UtilityMt

  6. Mt Rainier Geothermal Area | 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 JumpMarysville,Missoula,MontereyHill,Spurr GeothermalInformationMt Rainier

  7. Mt Ranier Geothermal Area | 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 JumpMarysville,Missoula,MontereyHill,Spurr GeothermalInformationMt RainierRanier

  8. ,"Sweetgrass, MT Natural Gas Pipeline Imports From Canada (MMcf...

    U.S. Energy Information Administration (EIA) Indexed Site

    Sweetgrass, MT Natural Gas Pipeline Imports From Canada (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest...

  9. ,"Whitlash, MT Natural Gas Pipeline Imports From Canada (MMcf...

    U.S. Energy Information Administration (EIA) Indexed Site

    Whitlash, MT Natural Gas Pipeline Imports From Canada (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest...

  10. ,"Babb, MT Natural Gas Pipeline Imports From Canada (MMcf)"

    U.S. Energy Information Administration (EIA) Indexed Site

    Imports From Canada (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Babb, MT...

  11. ,"Havre, MT Natural Gas Pipeline Imports From Canada (MMcf)"

    U.S. Energy Information Administration (EIA) Indexed Site

    Imports From Canada (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Havre, MT...

  12. Water Sampling At Mt Princeton Hot Springs Geothermal Area (Olson...

    Open Energy Info (EERE)

    Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Water Sampling At Mt Princeton Hot Springs Geothermal Area (Olson & Dellechaie, 1976)...

  13. Permeability prediction and drainage capillary pressure simulation in sandstone reservoirs

    E-Print Network [OSTI]

    Wu, Tao

    2005-02-17T23:59:59.000Z

    is estimated by extending the plateau to the right side of the graph (Figure 2.2) to define the extrapolated displacement pressure of Thomeer (1960). 7 Threshold pressure is defined by Katz and Thompson (1986) as the pressure at which mercury forms a...)cos(66.10 c nw P dSfk ??? (3-15) where f is the ?lithology factor?, introduced to account for differences between the model and natural pore structure. An empirically value of 0.216 was found for clean sandstones. Katz and Thompson (1986...

  14. Acidizing of Sandstone Reservoirs Using HF and Organic Acids

    E-Print Network [OSTI]

    Yang, Fei

    2012-10-19T23:59:59.000Z

    funnel and 0.2 µm filter paper. The concentrations of Si, Al, Ca, Mg, Fe in filtrate were analyzed by inductively coupled plasma (ICP) analysis using Optima 7000 DV ICP- OES system and WinLab 32TM software. The solid part was dried under room..., Mg, Fe, Al, and Si by ICP analysis using Optima 7000 DV ICP- OES system and WinLab 32TM software. 2.2.4 Core flood experiments on Berea sandstone cores using different amounts of HF To investigate the effect of HF amount on the outcome...

  15. An Improved Model for Sandstone Acidizing and Study of the Effect of Mineralogy and Temperature on Sandstone Acidizing Treatments and Simulation 

    E-Print Network [OSTI]

    Agarwal, Amit Kumar

    2013-01-14T23:59:59.000Z

    inaccessible to the acid when silica gel precipitates on their surface. The proposed model is shown here to be valid in extrapolating laboratory coreflood data and predicting the effluent acid concentration at various flow rates. The damage during sandstone...

  16. Mineral paragenesis and textures associated with sandstone-hosted roll-front uranium deposits, NW China

    E-Print Network [OSTI]

    Fayek, Mostafa

    Mineral paragenesis and textures associated with sandstone-hosted roll-front uranium deposits, NW Sciences, State Key Laboratory of Mineral Deposit Research, Nanjing University, Nanjing 210093, People, Wuyiyi and Shihongtan sandstone-hosted roll-front uranium deposits, northwest China. The mineralization

  17. CHANGES IN SANDSTONE DISTRIBUTIONS BETWEEN THE UPPER, MIDDLE, AND LOWER FAN IN THE ARKANSAS JACKFORK GROUP 

    E-Print Network [OSTI]

    Mack, Clayton P.

    2010-07-14T23:59:59.000Z

    is deposited moderately even and is quite concentrated throughout the exposure. The middle fan outcrops contain approximately 72.6% sandstone and show similar patterns, except that the amalgamated sandstone beds are not as thick, 5-15m and contain more shale...

  18. Pore water evolution in oilfield sandstones: constraints from oxygen isotope microanalyses of quartz cement

    E-Print Network [OSTI]

    Haszeldine, Stuart

    Pore water evolution in oilfield sandstones: constraints from oxygen isotope microanalyses to trace the origin and evolution of pore waters in three distinct reservoirs of the Brae Formation water evolution was reconstructed from the time of deposition of the sandstones in the Upper Jurassic

  19. Effects of carbon dioxide injection on the displacement of methane and carbonate dissolution in sandstone cores

    E-Print Network [OSTI]

    Maduakor, Ekene Obioma

    2006-10-30T23:59:59.000Z

    psig and temperature of 60oC using a 1 foot long and 1 inch diameter Berea sandstone core. Pure CO2 and treated flue gas (99.433 % mole CO2) were injected into the Berea sandstone core initially saturated with methane at a pressure of 1500 psig and 800...

  20. WPA Omnibus Award MT Wind Power Outreach

    SciTech Connect (OSTI)

    Brian Spangler, Manager Energy Planning and Renewables

    2012-01-30T23:59:59.000Z

    The objective of this grant was to further the development of Montanaâ??s vast wind resources for small, medium, and large scale benefits to Montana and the nation. This was accomplished through collaborative work with wind industry representatives, state and local governments, the agricultural community, and interested citizens. Through these efforts MT Dept Environmental Quality (DEQ) was able to identify development barriers, educate and inform citizens, as well as to participate in regional and national dialogue that will spur the development of wind resources. The scope of DEQâ??s wind outreach effort evolved over the course of this agreement from the development of the Montana Wind Working Group and traditional outreach efforts, to the current focus on working with the stateâ??s university system to deliver a workforce trained to enter the wind industry.

  1. Data Update for Mt. Tom, Holyoke, MA August 2006

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA August 2006 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Elkinton Monthly Data Summary for August 2006 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  2. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA June 2005 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Ray Monthly Data Summary for June 2005 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59.2" N, 72

  3. Data Update for Mt. Tom, Holyoke, MA January 2006

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA January 2006 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Ray Monthly Data Summary for December 2005 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  4. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA May 2007 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for May 2007 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  5. Data Update for Mt. Tom, Holyoke, MA October 2006

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA October 2006 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Elkinton Monthly Data Summary for October 2006 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  6. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA July 2007 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for July 2007 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  7. Data Update for Mt. Tom, Holyoke, MA December 2005

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA December 2005 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Ray Monthly Data Summary for December 2005 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  8. Data Update for Mt. Tom, Holyoke, MA October 2005

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA October 2005 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Ray Monthly Data Summary for October 2005 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  9. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA July 2006 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Elkinton Monthly Data Summary for July 2006 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  10. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA July 2005 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Ray Monthly Data Summary for July 2005 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59.2" N, 72

  11. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA March 2007 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for March 2007 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  12. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA May 2006 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Ray Monthly Data Summary for May 2006 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59.2" N, 72

  13. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA April 2007 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for April 2007 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  14. Data Update for Mt. Tom, Holyoke, MA October 2007

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA October 2007 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for October 2007 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  15. Data Update for Mt. Tom, Holyoke, MA November 2005

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA November 2005 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Ray Monthly Data Summary for November 2005 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  16. Data Update for Mt. Tom, Holyoke, MA January 2008

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA January 2008 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for January 2008 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  17. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA June 2007 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for June 2007 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  18. Data Update for Mt. Tom, Holyoke, MA January 2007

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA January 2007 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for January 2007 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  19. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA April 2008 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for April 2008 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  20. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA March 2008 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for March 2008 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  1. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA June 2006 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Elkinton Monthly Data Summary for June 2006 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  2. Data Update for Mt. Tom, Holyoke, MA November 2006

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA November 2006 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Elkinton Monthly Data Summary for November 2006 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  3. Data Update for Mt. Tom, Holyoke, MA February 2007

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA February 2007 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for February 2007 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  4. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA April 2006 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Ray Monthly Data Summary for April 2006 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59.2" N, 72

  5. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA March 2006 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Ray Monthly Data Summary for March 2006 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59.2" N, 72

  6. Data Update for Mt. Tom, Holyoke, MA August 2005

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA August 2005 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Melissa Ray Monthly Data Summary for August 2005 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  7. Data Update for Mt. Tom, Holyoke, MA Prepared for

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA May 2008 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for May 2008 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  8. Data Update for Mt. Tom, Holyoke, MA August 2007

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Data Update for Mt. Tom, Holyoke, MA August 2007 Prepared for Massachusetts Technology Collaborative 75 North Drive, Westborough, MA 01581 By Puneet Malhotra Monthly Data Summary for August 2007 This update summarizes the monthly data results for the Mt. Tom monitoring site in Holyoke, MA, at 42° 14' 59

  9. Kalman Filtering with Uncertain Noise Covariances Srikiran Kosanam Dan Simon

    E-Print Network [OSTI]

    Simon, Dan

    Kalman Filtering with Uncertain Noise Covariances Srikiran Kosanam Dan Simon Department.kosanam@csuohio.edu d.j.simon@csuohio.edu Abstract - In this paper the robustness of Kalman filtering against uncertainties in process and measurement noise covariances is discussed. It is shown that a standard Kalman

  10. Portland State University's Twelfth Annual SIMON BENSON AWARDS DINNER

    E-Print Network [OSTI]

    Bertini, Robert L.

    Portland State University's Twelfth Annual SIMON BENSON AWARDS DINNER Wednesday, October 19, 2011 Described by Portland Monthly magazine as "an A-list event for the state," the Simon Benson Awards Dinner Benson Awards Dinner offers you or your company the opportunity to join more than one thousand business

  11. Extension of Chern-Simons forms

    SciTech Connect (OSTI)

    Konitopoulos, Spyros; Savvidy, George [Demokritos National Research Center, Ag. Paraskevi, Athens (Greece)

    2014-06-15T23:59:59.000Z

    We investigate metric independent, gauge invariant, and closed forms in the generalized Yang-Mills (YM) theory. These forms are polynomial on the corresponding fields strength tensors – curvature forms and are analogous to the Pontryagin-Chern densities in the YM gauge theory. The corresponding secondary characteristic classes have been expressed in integral form in analogy with the Chern-Simons form. Because they are not unique, the secondary forms can be dramatically simplified by the addition of properly chosen differentials of one-step-lower-order forms. Their gauge variation can also be found yielding the potential anomalies in the gauge field theory.

  12. Kirby Simon | Photosynthetic Antenna Research Center

    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: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron beamJoin2015JustKateKent5 B O N N EKimKirby Simon

  13. Effect of confining pressure on pore volume in tight sandstones

    SciTech Connect (OSTI)

    Sampath, K.

    1982-05-01T23:59:59.000Z

    The effect of confining pressure on the pore volume of some tight sandstones from the Uinta Basin, Utah, was investigated. A new method based on the pressure-volume relationships of a gas was developed and used to measure pore volume reduction. The results were compared with the results obtained using the more common method that involves the measurement of liquid expelled from a saturated core and were found to be in good agreement. Pore volume compressibility of the samples studies is in the range of values reported by other investigators and ranges from 2.0 x 10/sup -6/ to 1.3 x 10/sup -5/ pv/pv/psi at a confining pressure of 5,000 psi.

  14. Depositional environment and reservoir morphology of Spraberry sandstones, Parks field, Midland County, Texas 

    E-Print Network [OSTI]

    Yale, Mark William

    1986-01-01T23:59:59.000Z

    , structureless sand- stones, very thinly laminated and bioturbated siltstones, and thin black shales. Sandstones are either thick or thin bedded, and vary in thickness from 0. 05 ft (0. 02 m) to 14. 5 ft (4. 4 m). Sandstones average 2. 7 ft (0. 8 m.... , 1952; Mardock and Myers, 1951; Bartley, 1952; Wilkinson, 1953; Hubbert and Willis, 1955). The upper member contains three well-defined sandstone beds and intervening beds of black shale and argillaceous limestones. This member is commonly 200 to 250...

  15. The influence of pore fluids on the frictional properties of quartzose sandstone

    E-Print Network [OSTI]

    Blackwell, Michael Lloyd

    1973-01-01T23:59:59.000Z

    the influence of pore fluids on the frictional properties of Tennessee and Coconino Sandstones, a series of triaxial compression tests have been performed. Specimens tested have been dry or they have contained kerosene, distilled water, or solutions of FeC1... Sandstone at different effective confining pressure. 19 Stress-shortening curves of four experiments performed with Tennessee Sandstone at 1 kb effective pressure: dry, saturated with kerosene, water, or 5x10 4 FeC13 solution. 21 Stress-shortening curves...

  16. Facies architecture of the Bluejacket Sandstone in the Eufaula Lake area, Oklahoma: Implications for the reservoir characterization of the Bartlesville Sandstone

    SciTech Connect (OSTI)

    Ye, Liangmiao; Yang, Kexian [Univ. of Tulsa, OK (United States)

    1997-08-01T23:59:59.000Z

    Outcrop studies of the Bluejacket Sandstone (Middle Pennsylvanian) provide significant insights to reservoir architecture of the subsurface equivalent Bartlesville Sandstone. Quarry walls and road cuts in the Lake Eufaula area offer excellent exposures for detailed facies architectural investigations using high-precision surveying, photo mosaics. Directional minipermeameter measurements are being conducted. Subsurface studies include conventional logs, borehole image log, and core data. Reservoir architectures are reconstructed in four hierarchical levels: multi-storey sandstone, i.e. discrete genetic intervals; individual discrete genetic interval; facies within a discrete genetic interval; and lateral accretion bar deposits. In both outcrop and subsurface, the Bluejacket (Bartlesville) Sandstone comprises two distinctive architectures: a lower braided fluvial and an upper meandering fluvial. Braided fluvial deposits are typically 30 to 80 ft thick, and are laterally persistent filling an incised valley wider than the largest producing fields. The lower contact is irregular with local relief of 50 ft. The braided-fluvial deposits consist of 100-400-ft wide, 5-15-ft thick channel-fill elements. Each channel-fill interval is limited laterally by an erosional contact or overbank deposits, and is separated vertically by discontinuous mudstones or highly concentrated mudstone interclast lag conglomerates. Low-angle parallel-stratified or trough cross-stratified medium- to coarse-grained sandstones volumetrically dominate. This section has a blocky well log profile. Meandering fluvial deposits are typically 100 to 150 ft thick and comprise multiple discrete genetic intervals.

  17. CARBON MANAGEMENT TECHNOLOGY CONFERENCE OCTOBER 21-23, 2013 Hilton Alexandria Old Town Alexandria, Virginia Page 1

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    CARBON MANAGEMENT TECHNOLOGY CONFERENCE OCTOBER 21-23, 2013· Hilton Alexandria Old Town· Alexandria University Abstract Carbon Capture and Storage (CCS) projects are subject to monitoring and verification) on Mt. Simon sandstone (USA) #12;CARBON MANAGEMENT TECHNOLOGY CONFERENCE OCTOBER 21-23, 2013· Hilton

  18. Up-Scaling Geochemical Reaction Rates Accompanying Acidic CO2-Saturated Brine Flow in Sandstone Aquifers

    E-Print Network [OSTI]

    New York at Stoney Brook, State University of

    1 Up-Scaling Geochemical Reaction Rates Accompanying Acidic CO2-Saturated Brine Flow in Sandstone models. As a step toward this, network flow models were used to simulate the flow of CO2-saturated brine

  19. Depositional environment and facies relationships of the Canyon sandstone, Val Verde Basin, Texas

    E-Print Network [OSTI]

    Mitchell, Michael Harold

    1975-01-01T23:59:59.000Z

    units of the Bouma turbi- dit. e sequence. The sequence of sedimentary structures and change in grain size indicate that the Canyon sandstone was deposited from a turbidity current flow. Complete bed sets are present within the cored interval...

  20. Ourcrop characterization of sandstone heterogeneity in Carboniferous reservoirs, Black Warrior basin, Alabama

    SciTech Connect (OSTI)

    Pashin, J.C.; Osborne, E.W.; Rindsberg, A.K.

    1991-08-01T23:59:59.000Z

    Where production is currently declining, improved recovery strategies, such as waterflooding, injection, strategic well placement, and infill drilling may be used to increase production of liquid hydrocarbons from reservoir sandstone in the Black Warrior basin. Characterizing reservoir heterogeneity provides information regarding how those strategies can best be applied, and exceptional exposures of asphaltic sandstone in north Alabama enable first-hand observation of such heterogeneity. This report identifies heterogeneity in Carboniferous strata of the Black Warrior basin on the basis of vertical variations, lithofacies analysis. Results of lithofacies analysis and depositional modeling were synthesized with existing models of sandstone heterogeneity to propose methods which may improve hydrocarbon recovery in Carboniferous sandstone reservoirs of the Black Warrior basin. 238 refs., 89 figs. 2 tabs.

  1. Pore-scale modeling of electrical and fluid transport in Berea sandstone

    E-Print Network [OSTI]

    Zhan, Xin

    The purpose of this paper is to test how well numerical calculations can predict transport properties of porous permeable rock, given its 3D digital microtomography (?CT) image. For this study, a Berea 500 sandstone sample ...

  2. The structure and evolution of small-displacement strike-slip faults in porous sandstone

    E-Print Network [OSTI]

    Schafer, Kirk Wyatt

    2002-01-01T23:59:59.000Z

    The early-evolution of fault structure is inferred from analysis of detailed maps of portions of strike-slip faults with uniform displacements ranging from mm to decimeter in porous quartzose sandstone. Emphasis is on assessing the spatial...

  3. Effects of carbon dioxide injection on the displacement of methane and carbonate dissolution in sandstone cores 

    E-Print Network [OSTI]

    Maduakor, Ekene Obioma

    2006-10-30T23:59:59.000Z

    sequestration. This thesis reports the results from experiments conducted on a Berea sandstone core. The experiments include displacement experiments and unconfined compressive strength tests. The displacement experiments were conducted at cell pressures of 1500...

  4. Ground Gravity Survey At Mt Princeton Hot Springs Geothermal...

    Open Energy Info (EERE)

    Notes Gravity low associated with Mt. Princeton Batholith; density contrast of -0.5 gcm3 of valley-fill sediments relative to batholith References J.E. Case, R.F. Sikora...

  5. Integrated Dense Array and Transect MT Surveying at Dixie Valley...

    Open Energy Info (EERE)

    and Deep Fluid Sources Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Integrated Dense Array and Transect MT Surveying at Dixie Valley...

  6. Red Fork sandstones (lower Pennsylvanian) in deeper parts of Anadarko basin, Oklahoma

    SciTech Connect (OSTI)

    Whiting, P.H.; Levine, S.D.

    1983-08-01T23:59:59.000Z

    Red Fork sandstones in the deeper part of the Anadarko basin are the downdip equivalents of fluvial and deltaic sandstones in the Cherokee Group. The sandstones have repetitive, ordered sequences of sedimentary structures in vertical section. Individual bedsets display sharp basal contacts, gradational tops, and contorted bedding. The characteristics indicate these basinal sandstones were deposited by turbidity currents. The sandstones occur as narrow, linear constructional channels that are dip-trending. The lateral change from channel-fill to overbank facies takes place abruptly. The sandstones are very fine-grained litharenites with an average composition of 58% quartz, 8% feldspar, 17% rock fragments, 5% other grains, and 12% matrix. Cement consists mainly of calcite ranging from 2 to 40% of the bulk volume. Quartz content tends to decrease upward and matrix increases upward within bedsets. The compositional grading is accompanied by a decrease in grain size upward within bedsets, indicating deposition during a decreasing flow-regime. Red Fork sandstones are low-permeability reservoirs with an average porosity and permeability of 7.8% and 0.1 md, respectively. Natural gas reservoirs occur mainly in the thicker, channel sequences. The bedding character of the channel and overbank facies is reflected in ..gamma..-ray log responses. Log characters of the two facies are used to interpret turbidite sections of uncored areas. The interpretations are adapted to the East Clinton field for prediction of constuctional channel reservoirs. The interpretation of dip-trending turbidite deposits may aid in exploration and development of the Red Fork sandstones.

  7. Terry sandstone member of the Pierre Shale, Upper Cretaceous, Spindle field, Denver Basin, Colorado 

    E-Print Network [OSTI]

    Helsley, Robert James

    1985-01-01T23:59:59.000Z

    TERRY SANDSTONE MEMBER OF THE PIERRE SHALE, UPPER CRETACEOUS, SPINDLE FIELD, DENVER BASIN, COLORADO A Thesis by ROBERT JAMES HELSLEY Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE August 1985 Major Subject: Geology TERRY SANDSTONE MEMBER OF THE PIERRE SHALE, UPPER CRETACEOUS, SPINDLE FIELD, DENVER BASIN, COLORADO A Thesis by ROBERT JAMES HELSLEY Approved as to style and content by: R. R. Berg...

  8. Depositional environment and reservoir morphology of Canyon sandstones, Central Midland Basin, Texas

    E-Print Network [OSTI]

    Jones, James Winston

    1980-01-01T23:59:59.000Z

    -1, Burnt Rock field. Letters at right of center column indicate turbi dite divisions . . . . . . . . . . 35 14. Grain size, compostion, and bedding types in Canyon sandstones, 7296-7299 feet, Phillips Petroleum Munn 1-A, Jameson field. Letters at right... divisions. . . . . . . . . . . 37 16. Grain size, composition, and bedding types in Canyon sandstones, 7377-7381 feet, Phillips Petroleum Munn 1-A, Jameson field. Letters at right of center column indicate turbi dite divisions...

  9. The geology of the basal sandstone-mudstone unit of the Blackhawk Landslide, Lucerne Valley, California

    E-Print Network [OSTI]

    Kuzior, Jerry Linn

    1983-01-01T23:59:59.000Z

    THE GEOLOGY OF THE BASAL SANDSTONE-MUDSTONE UNIT OF THE BLACKHAWK LANDSLIDE, LUCERNE VALLEY, CALIFORNIA A Thesis by JERRY LINN KUZIOR Submitted to the Graduate College of Texas AAM University in partial fulfillment of the requirements..., which could be in either a wet or dry state, proposed by Woodford and Harriss (1928), Hsu (1975), and Johnson (1978). The sandstone- mudstone unit has a different mechanical significance in each of the proposed models. Therefore, knowing the basic...

  10. Deposition of the Woodbine-Eagleford sandstones, Aggieland field, Brazos County, Texas

    E-Print Network [OSTI]

    DeDominic, Joseph Robert

    1988-01-01T23:59:59.000Z

    . , University of Montana Chair of Advisory Committee: Dr. Robert R. Berg Sandstones of the Upper Cretaceous Woodbine-Eagleford interval produce oil and gas from a stratigraphic trap at Aggieland field . The reservoir has an overall north-south trending... . 110 LIST OF FIGURES Figure Index map of northeast Texas showing major structural features, the location of Aggie- land field and other oil and gas fields which produce from the Woodbine-Eagleford sandstones. Modified from Berg and Leethem (1985...

  11. Depositional environment and reservoir characteristics of Frio Sandstone, McCampbell Deep Field, Aransas County, Texas

    E-Print Network [OSTI]

    Turner, James Rickey

    1977-01-01T23:59:59.000Z

    D EPOS ITIONAL ENVIRONMENT AND RESERVOIR CHARACTERISTICS OF FRIO SANDSTONE, MCCAMPBELL DEEP FIELD, ARANSAS COUNI'Y, TEXAS A Thesis by JAMES RICKEY TURNER Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 'l977 Major Subject: Geology DEPOSITIONAL ENVIRONMENT AND RESERVOIR CHARACTERISTICS OF FRIO SANDSTONE& MCCAMPBELL DEEP FIELD& ARANSAS COUNTY, T EXAS A Thesis by JAMES RICKEY TURNER Approved...

  12. Depositional environment and reservoir morphology of the Frio sandstones, Nine Mile Point Field, Aransas County, Texas

    E-Print Network [OSTI]

    Powell, Raina Rae

    1976-01-01T23:59:59.000Z

    of MASTER OF SCIENCE August 1976 Ma) or Suh) ect: Geology DEPOSZTZONAL ENVIRCNMENT AND RESERVOIR MORPHOLOCY OF THE FRIO SANDSTONES ~ NINE MILE POI?f FIELD y ARANSAS CXIPIY ~ TEXAS Approved as to style and content by: (Chairman of ttee) ead... of Department (M August 1976 Depositional Environment and Reservoir Norphology of the Frio Sandstones, N1ne Nile Point Field, Aransas County~ Texas (August 1975) ~ Rains Rae Powell~ B, S? ~ Stephen F Austin State University Ch~ of Advisory Caamitteee Dr...

  13. The effects of composition and bedding on log response, Yowlumne sandstone, Kern County, California

    E-Print Network [OSTI]

    Fortner, David William

    1988-01-01T23:59:59.000Z

    southwest of Bakersfield (Figures 3 and 4). Stratigraphy The Yowlumne sandstone is Upper Miocene (Mohnian) in age and is found as an isolated, lenticular body of sand within the Antelope Shale member of the Monterey Formation (Table 1) . Upper Miocene...THE EFFECTS OF COMPOSITION AND BEDDING ON LOG RESPONSE, YOWLUMNE SANDSTONE, KERN COUNTY, CALIFORNIA A Thesis by DAVID WILLIAM FORTNER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

  14. Environment of deposition of the Permian Lyons Sandstone at Black Hollow Field, Weld County, Colorado

    E-Print Network [OSTI]

    Frank, David Michael

    1984-01-01T23:59:59.000Z

    ENVIRONMENT OF DEPOSITION OF THE PERMIAN LYONS SANDSTONE AT BLACK HOLLOW FIELD, WELD COUNTY, COLORADO A Thesis by DAVID MICHAEL FRANK Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER QF SCIENCE August 1984 Major Subject: Geology ENVIRONMENT OF DEPOSITION OF THE PERMIAN LYONS SANDSTONE AT BLACK HOLLOW FIELD, WELD COUNTY, COLORADO A Thesis by DAVID MICHAEL FRANK Approved as to style and content by: R. R. Berg...

  15. Diagenesis of the Dakota sandstone, West Lindrith Field, Rio Arriba County, New Mexico

    E-Print Network [OSTI]

    Franklin, Stanley Powell

    1987-01-01T23:59:59.000Z

    Christian University Chairman of Advisory Commiuee: Dr, Thomas T. Tieh The Cretaceous Dakota sandstone at West Lindrith Field, Rio Arriba County, New Mexico consists of lenticular sand bodies interstratified with marine shales. The sandstones... rocks which were deposited under diverse marine and non-marine conditions near the southwestern margin of an epicontinental sea that covered much of the western interior (Owen, 1969) (Fig. 3). Local subsidence and major uplifts in the Cordillera...

  16. Environment of deposition of the upper Jurassic "Gray" sandstones, Terryville field, Lincoln Parish, Louisiana 

    E-Print Network [OSTI]

    Mani, Philip Charles

    1983-01-01T23:59:59.000Z

    as feldspathic subli- tharenites (Folk, 1974). Sandstones occur in a section of dominant dark shale that has a total thickness of 600 ft (182 m) . Cores exhibit thin sandstone beds with repetit'ous sequences of sedimentary structures and textural grading... black shale facies, and a deep marine trace fossil assemblage indicate a basinal environment of deposition. ACKNOWLEDGEMENTS I would like to thank Dr. Robert Berg, Chairman of my committee, for providing the topic and research funds for this study...

  17. Depositional environment of Upper Devonian gas producing sandstones, Westmoreland County, southwestern Pennsylvania 

    E-Print Network [OSTI]

    Work, Rebecca Miller

    1988-01-01T23:59:59.000Z

    DEPOSITIONAL ENVIRONMENT OF UPPER DEVONIAN GAS PRODUCING SANDSTONES, WESTMORELAND COUNTY, SOUTHWESTERN PENNSYLVANIA A Thesis by REBECCA MILLER WORK Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 1988 Major Subject: Geology DEPOSITIONAL ENVIRONMENT OF UPPER DEVONIAN GAS PRODUCING SANDSTONES, WESTMORELAND COUNTY, SOUTHWESTERN PENNSYLVANIA A Thesis REBECCA MILLER WORK Approved as to style...

  18. Provenance and diagenesis of the Cherokee sandstones, deep Anadarko basin, Western Oklahoma 

    E-Print Network [OSTI]

    Levine, Stephen Douglas

    1984-01-01T23:59:59.000Z

    . Fluids expelled from shales, coupled with CO2 from organic alteration, are responsible for dissolution. The sands and shales contain abundant authigenic kaolinite, illite, and chlorite. Kaolinite appears to be more abundant in the northern part... LITERATURE REVIEW. Sandstone Diagenesis. Shale Diagenesis. STUDY METHODS. Petrography X-ray Diffraction Scanning Electron Microscopy. Cathodo-Luminescence. Porosity and Permeability Measurements. Trend Analysis. PETROLOGY OF THE CHEROKEE SANDSTONE...

  19. Depositional environment of lower cretaceous Mitchell sandstone, St. Mary and Duty fields, Lafayette County, Arkansas 

    E-Print Network [OSTI]

    Mazzullo, Elsa Kapitan

    1983-01-01T23:59:59.000Z

    County, Arkansas. Series Group Subgroup Formation Field Number Washita Fredericksburg Paluxy Mooringsport Ferry Lake Comanchean Trinity Glen Rose Shale and limestone First lower anhydrite stringer Hill Sandstone Rodessa Second lower...DEPOSITIONAL ENVIRONMENT OF LOWER CRETACEOUS MITCHELL SANDSTONE, ST. MARY AND DUTY FIELDS, LAFAYETTE COUNTY, ARKANSAS A Thesis by ELSA KAPITAN MAZZULLO Submitted to the Graduate College of Texas A&M University in partial fulfillment...

  20. Depositional environment of upper Wilcox sandstones, Northeast Thompsonville field, Jim Hogg and Webb Counties, Texas 

    E-Print Network [OSTI]

    Tedford, Fredrick John

    1977-01-01T23:59:59.000Z

    DEPOSITIONAL ENVIRONMENT OF UPPER WILCOX SANDSTONES, NORTHEAST THOMPSONVILLE FIELD, JIM HOGG AND WEBB COUNTIES, TEXAS A Thesis by FREDERICK JOHN TEDFORD Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 1977 Major Subject: Geology DEPOSITIONAL ENVIRONMENT OF UPPER WILCOX SANDSTONES, NORTHEAST THOMPSONVILLE FIELD, JIM HOGG AND WEBB COUNTIES, TEXAS A Thesis by FREDERICK JOHN TEDFORD Approved...

  1. Environment of deposition of the Permian Lyons Sandstone at Black Hollow Field, Weld County, Colorado 

    E-Print Network [OSTI]

    Frank, David Michael

    1984-01-01T23:59:59.000Z

    ENVIRONMENT OF DEPOSITION OF THE PERMIAN LYONS SANDSTONE AT BLACK HOLLOW FIELD, WELD COUNTY, COLORADO A Thesis by DAVID MICHAEL FRANK Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER QF SCIENCE August 1984 Major Subject: Geology ENVIRONMENT OF DEPOSITION OF THE PERMIAN LYONS SANDSTONE AT BLACK HOLLOW FIELD, WELD COUNTY, COLORADO A Thesis by DAVID MICHAEL FRANK Approved as to style and content by: R. R. Berg...

  2. The measurement of contact areas and temperature during frictional sliding of Tennessee sandstone 

    E-Print Network [OSTI]

    Teufel, Lawrence William

    1976-01-01T23:59:59.000Z

    THE MEASUREMENT OF CONTACT AREAS AND TEMPERATURE DURING FRICTIONAL SLIDING OF TENNESSEE SANDSTONE A Thesis by LAWRENCE WILLIAM TEUFEL Submit';ed to the Graduate College of Texas ASM University in partial fulfillment of the requirements... for the degree of MASTERS OF SCIENCE August 1976 Major Subiect: Geology THE MEASUREMENT OF CONTACT AREAS AND TEMPERATURES DURING FRICTIONAL SLIDING OF TENNESSEE SANDSTONE A Thesis by LAWRENCE WILLIAM TEUFEL Approved as to sty1e and content by: Cha rma...

  3. Petrology and diagenesis of the Lower Wilcox sandstones, North Milton field area, Harris County, Texas

    E-Print Network [OSTI]

    Miller, Gregory Radford

    1982-01-01T23:59:59.000Z

    PETROLOGY AND DIAGENESIS OF THE LOWER WILCOX SANDSTONES, NORTH MILTON FIELD AREA, HARRIS COUNTY, TEXAS A Thesis by GREGORY RADFORD MILLER Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 198Z Major Subject: Geology PETROLOGY AND DIAGENESIS OF THE LOWER WILCOX SANDSTONES, NORTH MILTON FIELD AREA, HARRIS COUNTY, TEXAS A Thesis by GREGORY RADFORD MILLER Approved as to style and content by...

  4. Depositional environment and hydrodynamic flow in Lower Cretaceous J Sandstone, Lonetree field, Denver basin, Colorado

    E-Print Network [OSTI]

    Bicknell, James Scott

    1985-01-01T23:59:59.000Z

    DEPOSITIONAL ENVIRONMENT AND HYDRODYNAMIC FLOW IN LOWER CRETACEOUS J SANDSTONE, LONETREE FIELD, DENVER BASIN, COLORADO A Thesis by JAMES SCOTT BICKNELL Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE December 1985 Major Subject: Geology DEPOSITIONAL ENVIRONMENT AND HYDRODYNAMIC FLOW IN LOWER CRETACEOUS J SANDSTONE, LONETREE FIELD, DENVER BASIN, COLORADO A Thesis by JAMES SCOTT BICKNELL Approved...

  5. Petroleum geology of Carter sandstone (upper Mississippian), Black Warrior Basin, Alabama

    SciTech Connect (OSTI)

    Bearden, B.L.; Mancini, E.A.

    1985-03-01T23:59:59.000Z

    The presence of combination petroleum traps makes the Black Warrior basin of northwestern Alabama an attractive area for continued hydrocarbon exploration. More than 1,500 wells have been drilled, and more than 90 separate petroleum pools have been discovered. The primary hydrocarbon reservoirs are Upper Mississippian sandstones. The Carter sandstone is the most productive petroleum reservoir in the basin. Productivity of the Carter sandstone is directly related to its environment of deposition. The Carter accumulated within a high constructive elongate to lobate delta, which prograded into the basin from the northwest to the southeast. Carter bar-finger and distal-bar lithofacies constitute the primary hydrocarbon reservoirs. Primary porosity in the Carter sandstone has been reduced by quartz overgrowths and calcite cementation. Petroleum traps in the Carter sandstone in central Fayette and Lamar Counties, Alabama, are primarily stratigraphic and combination (structural-stratigraphic) traps. The potential is excellent for future development of hydrocarbon reservoirs in the Upper Mississippian Carter sandstone. Frontier regions south and east of the known productive limits of the Black Warrior basin are ideal areas for continued exploration.

  6. Finiteness of the noncommutative supersymmetric Maxwell-Chern-Simons theory

    SciTech Connect (OSTI)

    Ferrari, A. F.; Gomes, M.; Silva, A. J. da [Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, 05315-970, Sao Paulo, SP (Brazil); Nascimento, J. R. [Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, 05315-970, Sao Paulo, SP (Brazil); Departamento de Fisica, Universidade Federal da Paraiba, Caixa Postal 5008, 58051-970, Joao Pessoa, Paraiba (Brazil); Petrov, A. Yu.; Silva, E. O. [Departamento de Fisica, Universidade Federal da Paraiba, Caixa Postal 5008, 58051-970, Joao Pessoa, Paraiba (Brazil)

    2008-01-15T23:59:59.000Z

    Within the superfield approach, we prove the absence of UV/IR mixing in the three-dimensional noncommutative supersymmetric Maxwell-Chern-Simons theory at any loop order and demonstrate its finiteness in one, three, and higher loop orders.

  7. Anomalous spin of the Chern-Simons-Georgi-Glashow model

    E-Print Network [OSTI]

    Huo Qiu-Hong; Jiang Yunguo

    2012-05-08T23:59:59.000Z

    With the Coulomb gauge, the Chern-Simons-Georgi-Glashow (CSGG) model is quantized in the Dirac formalism for the constrained system. Combining the Gauss law and Coulomb gauge consistency condition, the difference between the Schwinger angular momentum and canonical angular momentum of the system is found to be an anomalous spin. The reason for this result lies in that the Schwinger energy momentum tensor and the canonical one have different symmetry properties in presence of the Chern-Simons term.

  8. Factors controlling reservoir quality in tertiary sandstones and their significance to geopressured geothermal production. Annual report, May 1, 1979-May 31, 1980

    SciTech Connect (OSTI)

    Loucks, R.G.; Richmann, D.L.; Milliken, K.L.

    1980-07-01T23:59:59.000Z

    Differing extents of diagenetic modification is the factor primarily responsible for contrasting regional reservoir quality of Tertiary sandstones from the Upper and Lower Texas Gulf Coast. Detailed comparison of Frio sandstones from the Chocolate Bayou/Danbury Dome area, Brazoria County, and Vicksburg sandstones from the McAllen Ranch Field area, Hidalgo County, reveals that extent of diagenetic modification is most strongly influenced by (1) detrital mineralogy and (2) regional geothermal gradients. Vicksburg sandstones from the McAllen Ranch Field area are less stable, chemically and mechanically, than Frio sandstones from the Chocolate Bayou/Danbury dome area. Vicksburg sandstones are mineralogically immature and contain greater proportions of feldspars and rock fragments than do Frio sandstones. Thr reactive detrital assemblage of Vicksubrg sandstones is highly susceptible to diagenetic modification. Susceptibility is enhanced by higher than normal geothermal gradients in the McAllen Ranch Field area. Thus, consolidation of Vicksburg sandstones began at shallower depth of burial and precipitation of authigenic phases (especially calcite) was more pervasive than in Frio sandstones. Moreover, the late-stage episode of ferroan calcite precipitation that occluded most secondary porosity in Vicksburg sandstones did not occur significantly in Frio sandstones. Therefore, regional reservoir quality of Frio sandstones from Brazoria County is far better than that characterizing Vicksburg sandstones from Hidalgo County, especially at depths suitable for geopressured geothermal energy production.

  9. The depositional environment and reservoir characteristics of the Upper Morrow "A" sandstone, Postle field, Texas County, Oklahoma 

    E-Print Network [OSTI]

    Travis, Lynn Suzanne

    1987-01-01T23:59:59.000Z

    deposit is conformably overlain by a mature point bar sandstone and related channel shales. A final braided stream episode incises into the lower sandstones and deposited braided bar sandstones. 52 16 Core analysis of PUMU 11 ? 9 showing porosity... regression of the sea into the Anadarko basin toward the southeast. The Sierra Grande Uplift in eastern Colorado and New Mexico was a northwest trending feature separated from the Las Animas arch by a structural trough. The Sierra Grande Uplift became a...

  10. A glimpse of provenance through the diagenetic haze in Smackover sandstones of the Gulf Coast

    SciTech Connect (OSTI)

    Dworkin, S.I. (Univ. of Texas, Austin (USA))

    1990-05-01T23:59:59.000Z

    Late Jurassic Smackover sandstones deposited in the four interior salt basins of the Gulf Coast have been extensively altered, yet their provenance signature has not been grossly modified on QFL and QmFLt plots. Recalculating framework compositions to account for diagenesis suggests that Smackover sandstones were derived from the Ouachita fold and thrust belt and the interior portion of the North American craton. Differences in framework composition between the four basins result from both diagenesis and provenance. Detrital quartz and rock fragments have been lime modified by diagenesis. The south Texas and Mississippi basin sandstones contain more polycrystalline quartz than the other two basins. Rock fragments in the three eastern basins consist primarily of SRFs and low-grade MRFs; south Texas sandstones contain mostly gneiss and schist. Feldspar composition is controlled by the pore fluid chemistry. The South Texas and Mississippi basins contain potassium-rich K-spar whereas the east Texas and Louisiana basins contain mostly albite. A uniform 6% loss (whole rock) of feldspar can be recognized petrographically in all four basins but this loss does not significantly shift the provenance fields on QFL and QmFLt plots. Mississippi basin sandstones plot primarily in the craton interior provenance field supporting derivation of these sands from the ancestral Mississippi river, East Texas sandstones are also dominated by a cratonic provenance area. Louisiana sandstones plot in the recycled orogen field and were primarily derived from a local source in the Ouachita fold belt. The provenance of south Texas sands was the interior zone of the Ouachitas, as indicated by the presence of high-grade metamorphic rock fragments and Rb-Sr dates of detrital muscovite.

  11. Depositional environment of Woodbine and Eagleford sandstones at OSR-Halliday field, Leon and Madison counties, Texas

    E-Print Network [OSTI]

    Bukowski, Charles Thomas

    1984-01-01T23:59:59.000Z

    -3" sandstones were cores approximate'y 230 feet bel w "69-3" sandstones. These thin sandstone units have a ahern bas, 1 contact, are massive at the bottom and rippled or intcrl minated with shales at the top. B'otuzbation is restricted to the tcp o... represents the distributary channel. Fossillferous shales of an irdistributary bay were deposited on top of these sandstones follow- ing abandonment of the channel. A second delta front/distributary channel sequence overlies the interdistributary Lay...

  12. Modeling Functional Data Sources as Relations Simone Santini and Amarnath Gupta

    E-Print Network [OSTI]

    Gupta, Amarnath

    Modeling Functional Data Sources as Relations Simone Santini and Amarnath Gupta University, LNCS 3288, pp. 55­68, 2004. c Springer-Verlag Berlin Heidelberg 2004 #12;56 Simone Santini and Amarnath

  13. Variations of chlorites and illites and porosity in Mississippian sandstone reservoirs in the Illinois basin

    SciTech Connect (OSTI)

    Moore, D.M.; Hughes, R.E. (Illinois State Geological Survey, Champaign (United States))

    1991-03-01T23:59:59.000Z

    Shallow marine, Mississippian, siliclastics in the Illinois basin, although predominantly quartz, contain other minerals that directly influence the porosity and permeability of these reservoir rocks. These sandstones contain more chlorite and kaolinite, relative to illite, than the authors have observed for shales from other Chesterian and Valmeyeran strata. Clay mineral suites in reservoirs appear to be diagenetic. The Aux Vases Sandstone contains illite, illite/smectite, and chlorite; kaolinite is absent. The Cypress Sandstone contains illite, illite/smectite, chlorite, and kaolinite. Chlorite in the Aux Vases Sandstone varies from moderately Fe-rich to Mg-rich, whereas the chlorite in the Cypress Sandstone is uniformly Fe-rich. As the percentage of clay minerals in these rocks decreases, the proportion of chlorite to other clay minerals increases. In some chlorites, the width of the 003 and 005 peaks at half-height is greater than that of the 002 and 004 peaks. This suggests an interlayering of a 7{angstrom} mineral, probably berthierine- or serpentine-like. SEM photos show chlorite coating quartz grains. In some samples there are quartz overgrowths in spite of the presence of a coating of chlorite; in others, chlorite interlayered with the 7{angstrom} phase seems to have interfered with or suppressed overgrowths. Correspondingly, there is a correlation between the 7{angstrom} phase/chlorite and porosity. Therefore, identification of the type of chlorite in a potential reservoir may be an indicator of porosity, as well as a guide for selecting completion and stimulation treatments.

  14. Depositional facies, diagenesis, and reservoir quality of Ivishak sandstone (Sadlerochit Group), Prudhoe Bay field

    SciTech Connect (OSTI)

    McGowen, J.H.; Bloch, S.

    1985-02-01T23:59:59.000Z

    The Sadlerochit Group is a large fan-delta system comparable in size to the modern Kosi River wet alluvial fan of Nepal and India. Braided-stream processes distributed chert gravel and quartz and chert sand in radial fashion to construct the subaerial part of the fan delta. Fluvial energy, slope of the fan surface, and grain size decrease in a north to south basinward direction. There is also a decrease in scale of sedimentation units from source area seaward. Facies of the subaerial fan delta can be broadly categorized as midfan delta (alternating conglomerate and sandstone), distal fan-delta (chiefly sandstone), and abandoned channel-fill, overbank, and pond facies (mudstone, siltstone, fine-grained sandstone). Seaward of the subaerial fan delta are the delta-front and prodelta facies. Subaerial fan-delta and delta-front facies compose the Ivishak sandstone, which grades basinward into the Kavik shale, a prodelta facies. Diagenetic effects were gradually superimposed on the sediments deposited in the Sadlerochit fan-delta system. The sedimentary facies, and in particular their textural characteristics, seem to control the side and degree of diagenesis, including enhancement of porosity and permeability. Comparison of permeability trends among the facies of the Ivishak sandstone with permeability patterns displayed by unconsolidated sands with analogous grain size and texture, indicates that the general trends that existed in the Ivishak sediments are still recognizable in spite of the diagenetic overprint.

  15. m_T2 : the truth behind the glamour

    E-Print Network [OSTI]

    Alan Barr; Christopher Lester; Phil Stephens

    2003-04-23T23:59:59.000Z

    We present the kinematic variable, m_T2, which is in some ways similar to the more familiar `transverse-mass', but which can be used in events where two or more particles have escaped detection. We define this variable and describe the event topologies to which it applies, then present some of its mathematical properties. We then briefly discuss two case studies which show how m_T2 is vital when reconstructing the masses of supersymmetric particles in mSUGRA-like and AMSB-like scenarios at the Large Hadron Collider.

  16. Mt St Helens Geothermal Area | 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 JumpMarysville,Missoula,MontereyHill,Spurr GeothermalInformationMt RainierRanierMt

  17. Petrology and hydrocarbon reservoir potential of Mississippian (Chesterian) sandstones, Black Warrior basin, Mississippi

    SciTech Connect (OSTI)

    Hughes, S.B.; Meylan, M.A.

    1988-09-01T23:59:59.000Z

    The character and reservoir quality of six different Mississippian (Chesterian) sandstone units in frontier areas of the Black Warrior basin of Mississippi have been determined by core inspection, thin-section examination, and x-ray diffractometry. A total of 113 samples from ten wells was taken from cores of the following sandstones: the Lewis, a calcareous sandstone at the top of or just above the Lewis that the authors refer to as the Lewis limestone, the Evans, the Rea, the Sanders, and the Carter. Hydrocarbon production from the basin, which is located in northeastern Mississippi and northwestern Alabama, is mostly shallow gas (with minor gas condensate and oil) from the units. Sample depths range from about 2500 ft (762 m) in northern Chickasaw County to about 5500 ft (1676 m) in Monroe and Lowndes Counties, with the deepest samples coming from almost 11,000 ft (3353 m) in northern Clay County.

  18. Origin of Lower Cretaceous (`Nubian') sandstones of North-east Africa and Arabia from detrital zircon U-Pb SHRIMP dating

    E-Print Network [OSTI]

    Dov, Avigad

    as widespread sandstone sheets, typically are mineralogically and texturally mature. Previous petrographic contain aerially extensive siliciclastic rock units typically dominated by quartz-rich sandstone older sources (Kolodner et al., 2006). Petrogra- phical examination and detrital zircon geochro- nology

  19. Dissimilar diagenetic histories of Jurassic sandstones in the Gulf of Mexico

    SciTech Connect (OSTI)

    Dworkin, S.I. (Baylor Univ., Waco, TX (United States). Dept. of Geology)

    1992-01-01T23:59:59.000Z

    Jurassic sandstones from the LA and MS interior salt basins show different diagenetic histories apparent from the style of framework grain modification, the types of cements precipitated, and the timing of cementation. Differences in diagenetic histories can be attributed to the depositional environment of the sandstones as well as the subsequent evolution of the pore fluids. Feldspars within the sandstones in the two basins show contrasting compositions resulting from diagenesis rather than provenance. Sandstones in the LA basin contain feldspars with end-member albite compositions, whereas the feldspars in the MS basin are dominated by end-member K-feldspar compositions. Potassium-rich brines in the MS basin, which provided the chemical stability for those feldspars, were probably generated through the dissolution of deeply buried bittern salts. The paragenetic sequence for the major cementation events in the LA basin sandstones is quartz, ferroan dolomite, calcite, and anhydrite. The order of cement precipitation in the MS basin is K-feldspar, dolomite, quartz, calcite, and anhydrite. The early dolomite in the MS basin has a composition indicative of a seawater origin and is missing from the LA basin because LA basin sandstones were deposited in deep water and thus lacked an efficient pump. Quartz cement in both basins has oxygen isotopic compositions that indicate relatively early emplacement although the timing of this cement in the two basins differs. The origin of silica for the quartz is inferred to be from dissolving feldspars during shallow burial. The presence of ferroan dolomite in the LA basin indicates that the evolution of the pore fluids continued to vary between the basins late in the burial history. Anhydrite cementation occurred in both basins late in the burial history as a result of remobilization of buried calcium sulfate deposits.

  20. A subsurface study of the Denkman sandstone member, Norphlet Formation, hatters Pond field, Mobile County, Alabama

    SciTech Connect (OSTI)

    Young, L.M.; Anderson, E.G.; Baria, L.R. (Northeast Louisiana Univ., Monroe (USA)); Higginbotham, R.S.

    1990-09-01T23:59:59.000Z

    Hatters Pond field is in east-central Mobile County in southwestern Alabama and it produces from both the Norphlet and Smackover formations. The structural trap involves salt movement along the west side of the Mobile Fault System that resulted in a faulted salt anticline. The Norphlet Formation of southwestern Alabama consists of red to gray siltstone and pinkish to gray sandstone with conglomerate layers. Three facies have been distinguished within the Norphlet Formation: a lower shale, a red siltstone sequence, and an upper quartzose unit. The thickness of the formation ranges from a feather edge to more than 800 ft (234.8 m) in southwestern Alabama. The Upper Jurassic Denkman Sandstone Member of the Norphlet Formation at Hatters Pond field is a medium- to fine-grained, well-sorted arkosic sandstone between the underlying Norphlet redbed lithofacies and the carbonates of the overlying Smackover Formation. Here, the Denkman Member can be subdivided into a massive upper unit and a low- to high-angle cross-stratified lower unit. The sandstones are quartz-rich with a high percentage of feldspars. The majority of the feldspar grains observed are potassium feldspar. Microcline is usually less altered when compared with other types of feldspar grains. The major types of feldspar replacement include illitization, hematitization, dolomitization, chloritization, calcitization, vacuolization, and anhydritization. Carbonate replacement of feldspars is very abundant, mostly by ferroan dolomite. Rock fragments are not abundant in the Denkman Member, although there is good evidence of a metamorphic/volcanic source area. The sandstones are cemented by dolomite, calcite, anhydrite, and quartz and feldspar overgrowths. The lower Denkman unit is slightly more porous than the upper Denkman unit. The pore-lining authigenic clay, illite, greatly reduces permeability and porosity in these sandstones.

  1. STRUCTURAL AND STRATIGRAPHIC CONTROLS ON MORROW SANDSTONE RESERVOIR DISTRIBUTION FROM 3-D SEISMIC DATA, POSTLE FIELD, TEXAS

    E-Print Network [OSTI]

    seismic data provides a useful tool to investigate the structural framework. Time structure maps, isochronSTRUCTURAL AND STRATIGRAPHIC CONTROLS ON MORROW SANDSTONE RESERVOIR DISTRIBUTION FROM 3-D SEISMIC and the thin, discontinuous nature of the reservoir sandstones. Modeling was conducted to investigate

  2. Detrital zircon geochronology from the Cambrian-Ordovician Bliss Sandstone, New Mexico: Evidence for contrasting Grenville-age and

    E-Print Network [OSTI]

    Amato, Jeff

    Detrital zircon geochronology from the Cambrian-Ordovician Bliss Sandstone, New Mexico: Evidence and Greg H. Mack Department of Geological Sciences, New Mexico State University, Las Cruces, New Mexico-Ordovician Bliss Sandstone in southern New Mexico are used to test models for the influence and signifi- cance

  3. Discriminant Analysis of XRF Data from Sandstones of Like Facies and Appearance: A Method for Identifying a Regional Unconformity, Paleotopography,

    E-Print Network [OSTI]

    Seamons, Kent E.

    Discriminant Analysis of XRF Data from Sandstones of Like Facies and Appearance: A Method Reserved #12;ABSTRACT Discriminant Analysis of XRF Data from Sandstones of Like Facies and Appearance candidate surfaces. Using statistical discriminant analysis of XRF data, formations bounding an unconformity

  4. Stratigraphic relationships in Woodbine-Eagleford and Sub-Clarksville sandstones, IDS field, Brazos County, Texas

    E-Print Network [OSTI]

    Brogdon, Ron Lee

    1990-01-01T23:59:59.000Z

    -Clarksville Sandstones, IDS Field, Brazos County, Texas. (August 1990) Ron Lee Brogdon, B. A. , Harvard University Chair of Advisory Committee: Dr. Robert R. Berg Sandstones of the Upper-Cretaceous Woodbine-Eagleford interval produce oil and gas from a small... no influence as a hydrocarbon trap. Production from IDS field, like the extent of the reservoir, is small. Nine years of production from 13 wells have yielded only 584 MBBLS of oil. Production is not uniform across the field, but defines a trend which...

  5. Depositional environment of Upper Cretaceous deep Tuscaloosa Sandstones, Profit Island field, east Baton Rouge Parish, Louisiana

    E-Print Network [OSTI]

    Roth, Susan Viola

    1981-01-01T23:59:59.000Z

    in thickness from 12 ft to 17 ft (4 m to 5 m). Finally, thin-bedded, distinctly parallel-laminated and ripple-laminated sandstones represent overbank deposits which range in thickness from 4 ft to 9 ft (1 m to 3 m) ~ Black marine shales with thinly... Island field is in the lower Tuscaloosa sandstones. The exact age of the Tuscaloosa has recently been the subj ect of many stratigraphic studies. It has generally been assumed that the 11 deep Tuscaloosa of Louisiana and the Woodbine of East Texas...

  6. Depositional environment and reservoir morphology of Spraberry sandstones, Parks field, Midland County, Texas

    E-Print Network [OSTI]

    Yale, Mark William

    1986-01-01T23:59:59.000Z

    , structureless sand- stones, very thinly laminated and bioturbated siltstones, and thin black shales. Sandstones are either thick or thin bedded, and vary in thickness from 0. 05 ft (0. 02 m) to 14. 5 ft (4. 4 m). Sandstones average 2. 7 ft (0. 8 m... of a reservoir study at Parks; and Mr. F. E. Hill in Dallas, for providing me with rewarding summer jobs. Mrs. Nina Ronalder, who as the Mobil employee in-charge of the field has been my primary source of data on the Parks field. Finally, I cannot...

  7. Diagenesis of the Terry sandstone member of the Pierre Shale, Spindle field, Weld County, Colorado 

    E-Print Network [OSTI]

    Hays, Phillip Dean

    1986-01-01T23:59:59.000Z

    DIAGENESIS OF THE TERRY SANDSTONE MEMBER OF THE PIERRE SHALE, SPINDLE FIELD, WELD COUNTY, COLORADO A Thesis PHILLIP DEAN HAYS Submitted to the Gradute College of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 1986 Major Subject: Geology DIAGNESIS OF THE TERRY SANDSTONE MEMBER OF THE PIERRE SHALE ~ SP INDLE F I ELD ~ WELD COUNTY ~ COLORADO A Thesis by PHILLIP DEAN HAYS Approved as to style and content by: -, ~jD Thomas T...

  8. The influence of pore fluids on the frictional properties of quartzose sandstone 

    E-Print Network [OSTI]

    Blackwell, Michael Lloyd

    1973-01-01T23:59:59.000Z

    THE INFLUENCE OF PORE FLUIDS ON THE FRICTIONAL PROPERTIES OF QUARTZOSE SANDSTONE A Thesis by MICHAEL LLOYD BLACKWELL Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE May 1973 Ma)or Sub)ect: Geophysics THE INFLUENCE OF PORE FLUIDS ON THE FRICTIONAL PROPERTIES OF QUARTZOSE SANDSTONE A Thesis by MICHAEL LLOYD BLACKHELL Approved as to style and content by: (Chai of Committee) (Head of De rtment) (Member...

  9. Diagenesis of the Terry sandstone member of the Pierre Shale, Spindle field, Weld County, Colorado

    E-Print Network [OSTI]

    Hays, Phillip Dean

    1986-01-01T23:59:59.000Z

    DIAGENESIS OF THE TERRY SANDSTONE MEMBER OF THE PIERRE SHALE, SPINDLE FIELD, WELD COUNTY, COLORADO A Thesis PHILLIP DEAN HAYS Submitted to the Gradute College of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 1986 Major Subject: Geology DIAGNESIS OF THE TERRY SANDSTONE MEMBER OF THE PIERRE SHALE ~ SP INDLE F I ELD ~ WELD COUNTY ~ COLORADO A Thesis by PHILLIP DEAN HAYS Approved as to style and content by: -, ~jD Thomas T...

  10. Environment of deposition of the upper Jurassic "Gray" sandstones, Terryville field, Lincoln Parish, Louisiana

    E-Print Network [OSTI]

    Mani, Philip Charles

    1983-01-01T23:59:59.000Z

    polycrystalline quartz, 0th = other minerals, Nx = matrix. c Sil = silica as grain overgrowths, Cal = calcite. 35 in decreasing amounts from cores S18-1, D20-1, and D19-1. Oolite nucleii are frequently composed of monocrystalline quartz grains and rock... as feldspathic subli- tharenites (Folk, 1974). Sandstones occur in a section of dominant dark shale that has a total thickness of 600 ft (182 m) . Cores exhibit thin sandstone beds with repetit'ous sequences of sedimentary structures and textural grading...

  11. Chern-Simons terms and cocycles in physics and mathematics

    SciTech Connect (OSTI)

    Jackiw, R.

    1984-12-01T23:59:59.000Z

    Contemporary topological research in Yang-Mills theory is reviewed, emphasizing the Chern-Simons terms and their relatives. Three applications of the Chern-Simons terms in physical theory are described: to help understanding gauge theories in even dimensional space-time; gauge field dynamics in odd dimensional space-time; and mathematically coherent description of even-dimensional gauge theories with chiral fermions that are apparently inconsistent due to chiral anomalies. Discussion of these applications is preceded by explanation of the mathematical preliminaries and examples in simple quantum mechanical settings. 24 refs. (LEW)

  12. Chern-Simons classes of flat connections on supermanifolds

    E-Print Network [OSTI]

    JN Iyer; Un Iyer

    2007-07-16T23:59:59.000Z

    In this note we define Chern-Simons classes of a superconnection $D+L$ on a complex supervector bundle $E$ such that $D$ is flat and preserves the grading, and $L$ is an odd endomorphism of $E$ on a supermanifold. As an application we obtain a definition of Chern-Simons classes of a (not necessarily flat) morphism between flat vector bundles on a smooth manifold. We extend Reznikov's theorem on triviality of these classes when the manifold is a compact K\\"ahler manifold or a smooth complex quasi--projective variety, in degrees > 1.

  13. Chern-Simons classes of flat connections on supermanifolds

    E-Print Network [OSTI]

    Iyer, JN

    2007-01-01T23:59:59.000Z

    In this note we define Chern-Simons classes of a superconnection $D+L$ on a complex supervector bundle $E$ such that $D$ is flat and preserves the grading, and $L$ is an odd endomorphism of $E$ on a supermanifold. As an application we obtain a definition of Chern-Simons classes of a (not necessarily flat) morphism between flat vector bundles on a smooth manifold. We extend Reznikov's theorem on triviality of these classes when the manifold is a compact K\\"ahler manifold or a smooth complex quasi--projective variety, in degrees > 1.

  14. AdS Chern-Simons Gravity induces Conformal Gravity

    E-Print Network [OSTI]

    Rodrigo Aros; Danilo E. Diaz

    2013-12-25T23:59:59.000Z

    The leitmotif of this paper is the question of whether four- and higher even-dimensional Conformal Gravities do have a Chern-Simons pedigree. We show that Weyl gravity can be obtained as dimensional reduction of a five-dimensional Chern-Simons action for a suitable (gauged-fixed, tractor-like) five-dimensional AdS connection. The gauge-fixing and dimensional reduction program admits a readily generalization to higher dimensions for the case of certain conformal gravities obtained by contractions of the Weyl tensor.

  15. Dirac matrices for Chern-Simons gravity

    SciTech Connect (OSTI)

    Izaurieta, Fernando; Ramirez, Ricardo; Rodriguez, Eduardo [Departamento de Matematica y Fisica Aplicadas, Universidad Catolica de la Santisima Concepcion, Alonso de Ribera 2850, 4090541 Concepcion (Chile)

    2012-10-06T23:59:59.000Z

    A genuine gauge theory for the Poincare, de Sitter or anti-de Sitter algebras can be constructed in (2n- 1)-dimensional spacetime by means of the Chern-Simons form, yielding a gravitational theory that differs from General Relativity but shares many of its properties, such as second order field equations for the metric. The particular form of the Lagrangian is determined by a rank n, symmetric tensor invariant under the relevant algebra. In practice, the calculation of this invariant tensor can be reduced to the computation of the trace of the symmetrized product of n Dirac Gamma matrices {Gamma}{sub ab} in 2n-dimensional spacetime. While straightforward in principle, this calculation can become extremely cumbersome in practice. For large enough n, existing computer algebra packages take an inordinate long time to produce the answer or plainly fail having used up all available memory. In this talk we show that the general formula for the trace of the symmetrized product of 2n Gamma matrices {Gamma}{sub ab} can be written as a certain sum over the integer partitions s of n, with every term being multiplied by a numerical cofficient {alpha}{sub s}. We then give a general algorithm that computes the {alpha}-coefficients as the solution of a linear system of equations generated by evaluating the general formula for different sets of tensors B{sup ab} with random numerical entries. A recurrence relation between different coefficients is shown to hold and is used in a second, 'minimal' algorithm to greatly speed up the computations. Runtime of the minimal algorithm stays below 1 min on a typical desktop computer for up to n = 25, which easily covers all foreseeable applications of the trace formula.

  16. Going-to-the-Sun Road, Glacier National Park, MT, USA

    E-Print Network [OSTI]

    Going-to-the-Sun Road, Glacier National Park, MT, USA Avalanche Path Atlas Erich H. Peitzsch Daniel..................................................................................................................................... 2 Overview of Red Rock Group avalanche paths, Going-to-the-Sun Road, Glacier National Park, MT................................................................................................................................................... 3 Overview of Lower GTSR group avalanche paths, Going-to-the-Sun Road, Glacier National Park, MT

  17. Phylogeography of pipistrelle-like bats within the Canary Islands, based on mtDNA sequences

    E-Print Network [OSTI]

    Brown, Richard

    Phylogeography of pipistrelle-like bats within the Canary Islands, based on mtDNA sequences J January 2002; received in revised form 7 July 2002 Abstract Evolution of three Canary Island by comparison of 1 kbp of mtDNA (from cytochrome b and 16S rRNA genes) between islands. mtDNA reveals that both

  18. Evaluating the Effects of Environmentally Acceptable Clay Stabilizer on Bandera Sandstone

    E-Print Network [OSTI]

    Emecheta, Akunna C

    2013-08-26T23:59:59.000Z

    Fines migration and clay swelling are major problems encountered in sandstone formations in the petroleum industry which leads to a decline in the level of productivity in the reservoirs. Inorganic salts such as KCl, NH_(4)Cl, and NaCl are used...

  19. Mineral Sequestration of Carbon Dixoide in a Sandstone-Shale System

    SciTech Connect (OSTI)

    Xu, Tianfu; Apps, John A.; Pruess, Karsten

    2004-07-09T23:59:59.000Z

    A conceptual model of CO2 injection in bedded sandstone-shale sequences has been developed using hydrogeologic properties and mineral compositions commonly encountered in Gulf Coast sediments. Numerical simulations were performed with the reactive fluid flow and geochemical transport code TOUGHREACT to analyze mass transfer between sandstone and shale layers and CO2 immobilization through carbonate precipitation. Results indicate that most CO2 sequestration occurs in the sandstone. The major CO2 trapping minerals are dawsonite and ankerite. The CO2 mineral-trapping capacity after 100,000 years reaches about 90 kg per cubic meter of the medium. The CO2 trapping capacity depends on primary mineral composition. Precipitation of siderite and ankerite requires Fe+2 supplied mainly by chlorite and some by hematite dissolution and reduction. Precipitation of dawsonite requires Na+ provided by oligoclase dissolution. The initial abundance of chlorite and oligoclase therefore affects the CO2 mineral trapping capacity. The sequestration time required depends on the kinetic rate of mineral dissolution and precipitation. Dawsonite reaction kinetics is not well understood, and sensitivity regarding the precipitation rate was examined. The addition of CO2 as secondary carbonates results in decreased porosity. The leaching of chemical constituents from the interior of the shale causes slightly increased porosity. The limited information currently available for the mineralogy of natural high-pressure CO2 gas reservoirs is also generally consistent with our simulation. The ''numerical experiments'' give a detailed understanding of the dynamic evolution of a sandstone-shale geochemical system.

  20. Z .Chemical Geology 152 1998 257271 The thermal and cementation histories of a sandstone petroleum

    E-Print Network [OSTI]

    Z .Chemical Geology 152 1998 257­271 The thermal and cementation histories of a sandstone petroleum of the cement formed, the maturation of petroleum in the interbedded shales likely postdates cementation. q 1998 and economic ) Corresponding author. Exxon Production Research Company, P.O 2189, Houston, TX 77252-2189, USA

  1. Three-dimensional seismic stratigraphic study of downdip Yegua sandstones, Edna Field, Jackson County, Texas

    E-Print Network [OSTI]

    Trikania, Andra

    1996-01-01T23:59:59.000Z

    This study reports an investigation of the structure and stratigraphy of the downdip Yegua sandstones at Edna Field, Jackson County, South Texas. The study is based on 22.9 square miles of three dimensional (3-D) seismic data, well-logs from 15...

  2. Depositional environment of Oligocene Hackberry sandstones, Hilde brandt Bayou area, Jefferson County, Texas

    E-Print Network [OSTI]

    Powers, Brian Kennett

    1980-01-01T23:59:59.000Z

    Regional Geology Frio Stratigraphy Production History Methods . CHARACTERISTICS OF HACKBERRY SANDSTONES Introduction Sedimentary Structures Texture . Composition . Clay Identification . Faunal Occurrence . INTERPRETATION Submarine Canyons... Coast illustrating Hackberry embayment Page Electric log dip section through Hi ldebrandt Bayou area, southern Jefferson County, Texas Structure map on top of Frio in southern Jefferson County illustrating location of fields in the Hildebrandt...

  3. Reservoir heterogeneity in Carter Sandstone, North Blowhorn Creek oil unit and vicinity, Black Warrior Basin, Alabama

    SciTech Connect (OSTI)

    Kugler, R.L.; Pashin, J.C.

    1992-05-01T23:59:59.000Z

    This report presents accomplishments made in completing Task 3 of this project which involves development of criteria for recognizing reservoir heterogeneity in the Black Warrior basin. The report focuses on characterization of the Upper Mississippian Carter sandstone reservoir in North Blowhorn Creek and adjacent oil units in Lamar County, Alabama. This oil unit has produced more than 60 percent of total oil extracted from the Black Warrior basin of Alabama. The Carter sandstone in North Blowhorn Creek oil unit is typical of the most productive Carter oil reservoirs in the Black Warrior basin of Alabama. The first part of the report synthesizes data derived from geophysical well logs and cores from North Blowhorn Creek oil unit to develop a depositional model for the Carter sandstone reservoir. The second part of the report describes the detrital and diagenetic character of Carter sandstone utilizing data from petrographic and scanning electron microscopes and the electron microprobe. The third part synthesizes porosity and pore-throat-size-distribution data determined by high-pressure mercury porosimetry and commercial core analyses with results of the sedimentologic and petrographic studies. The final section of the report discusses reservoir heterogeneity within the context of the five-fold classification of Moore and Kugler (1990).

  4. Quartz cementation inhibited by crestal oil charge: Miller deep water sandstone,

    E-Print Network [OSTI]

    Haszeldine, Stuart

    to the structural depth of the reservoir sandstones. Quartz cement volumes increase from the crest of the field porosity. By integrating petrographic observations with results of fluid inclusion measurements and O depths. Quartz cement precipitation condi- tions were constrained by integrating fluid inclusion

  5. Altering Wettability in Gas Condensate Sandstone Reservoirs for Gas Mobillity Improvement

    E-Print Network [OSTI]

    Fernandez Martinez, Ruth Gabriela

    2012-07-16T23:59:59.000Z

    ). ...................................................................... 7 Fig. 6-Productivity Index (PI) vs. reservoir pressure of the Arun Field, showing a sharp drop with decreasing pressure. (Afidick et al. 1994). ................................... 8 Fig. 7-BX1 pressure drop vs. time in Britannia Field, where... for untreated Berea sandstone cores. ................................... 30 Fig. 16-Gas relative permeability of untreated rocks at the endpoints. ............................ 31 Fig. 17-BR1 Liquid Imbibitions...

  6. A New Approach to Designing the Optimum Acid Treatment for Sandstone Reservoirs

    E-Print Network [OSTI]

    Abdelmoneim Mahmoud, Sherif

    2014-08-08T23:59:59.000Z

    , and Fe3O4. The presence of iron oxides in the formation will result in fluorinated complexes ( ( ) , where 1 fluorine complexes applies... only to relatively clean sandstones. In the presence of clays, the dissolved aluminum ions have a greater affinity for fluorine than iron does. Therefore, the iron fluorine complexes do not form and iron hydroxide still precipitates at pH levels...

  7. Using X-ray computed tomography in pore structure characterization for a Berea sandstone: Resolution effect

    E-Print Network [OSTI]

    Hu, Qinhong "Max"

    Using X-ray computed tomography in pore structure characterization for a Berea sandstone Keywords: XCT Pore structure characterization Resolution effect MIP s u m m a r y X-ray computed tomography electron microscopy (Ioannidis et al., 1996), X-ray computed tomography (XCT) with either conventional

  8. Reservoir characterization of Pennsylvanian Sandstone reservoirs. Quarterly progress report, January 1, 1991--March 31, 1991

    SciTech Connect (OSTI)

    Kelkar, B.G.

    1993-08-08T23:59:59.000Z

    The overall objectives of this work are: (i) to investigate the importance of various qualities and quantities of data on the optimization of waterflooding performance; and (ii) to study the application of newly developed geostatistical techniques to analyze available production data to predict future proposals of infill drilling. The study will be restricted to Pennsylvanian sandstone reservoirs commonly found in Oklahoma.

  9. Effect of fluid rheology on enhanced oil recovery in a microfluidic sandstone device

    E-Print Network [OSTI]

    Rothstein, Jonathan

    recovery with that secondary fluid alone. These results clearly demonstrate that the microfluidic sandstone oil in the field will have been recov- ered [1]. The secondary stage of oil recovery is characterized of the oil being recovered [1]. After primary and secondary oil recovery techniques have been exhausted

  10. Depositional and diagenetic controls on reservoir quality of the Norphlet Sandstone, Mary Ann field, offshore Alabama

    SciTech Connect (OSTI)

    Pense, G.M.

    1988-09-01T23:59:59.000Z

    The Norphlet Sandstone is a gas-prone reservoir in the subsurface of the Mobile basin. A nine-stage diagenetic history is proposed that accounts for anomalously high porosity (20%) and permeability (100 md) measured in cores taken from depths as great as 20,000 ft in the block 76-2 well of Mobil's Mary Ann field.

  11. Security Risk Management using Internal Controls Simon Foley,

    E-Print Network [OSTI]

    Foley, Simon

    Security Risk Management using Internal Controls Simon Foley, Department of Computer Science technical concern, it should be considered as just another risk that needs to be managed alongside all other business risks. An Internal Controls approach to security risk management is proposed whereby automated

  12. LUNAR MINERALS James Papike, Lawrence Taylor, and Steven Simon

    E-Print Network [OSTI]

    Rathbun, Julie A.

    LUNAR MINERALS James Papike, Lawrence Taylor, and Steven Simon The lunar rocks described--make it easy to distinguish them from terrestrial rocks. However, the minerals that make up lunar rocks are (with a few notable exceptions) minerals that are also found on Earth. Both lunar and terrestrial rocks

  13. Decentralized Semantic Threat Graphs Simon N. Foley1

    E-Print Network [OSTI]

    Foley, Simon

    Decentralized Semantic Threat Graphs Simon N. Foley1 William M. Fitzgerald1 Cork Constraint.foley@cs.ucc.ie wfitzgerald@4c.ucc.ie Abstract. Threat knowledge-bases such as those maintained by MITRE and NIST provide a basis with which to mitigate known threats to an enterprise. These centralised knowledge-bases assume

  14. DHV water pumping optimization Simon van Mourik1

    E-Print Network [OSTI]

    Rottschäfer, Vivi

    Chapter 6 DHV water pumping optimization Simon van Mourik1 Joris Bierkens2 Hans Stigter1 Martijn for optimizing a drinking water network over a horizon of 48 hours, given variable water demands, energy prices and constraints on the pumping strategy and water levels in the reservoirs. Both the dynamic model and goal

  15. Angular Momentum Generation from Holographic Chern-Simons Models

    E-Print Network [OSTI]

    Chaolun Wu

    2014-12-22T23:59:59.000Z

    We study parity-violating effects, particularly the generation of angular momentum density and its relation to the parity-odd and dissipationless transport coefficient Hall viscosity, in strongly-coupled quantum fluid systems in 2+1 dimensions using holographic method. We employ a class of 3+1-dimensional holographic models of Einstein-Maxwell system with gauge and gravitational Chern-Simons terms coupled to a dynamical scalar field. The scalar can condensate and break the parity spontaneously. We find that when the scalar condensates, a non-vanishing angular momentum density and an associated edge current are generated, and they receive contributions from both gauge and gravitational Chern-Simons terms. The angular momentum density does not satisfy a membrane paradigm form because the vector mode fluctuations from which it is calculated are effectively massive. On the other hand, the emergence of Hall viscosity is a consequence of the gravitational Chern-Simons term alone and it has membrane paradigm form. We present both general analytic results and numeric results which take back-reactions into account. The ratio between Hall viscosity and angular momentum density resulting from the gravitational Chern-Simons term has in general a deviation from the universal 1/2 value obtained from field theory and condensed matter physics.

  16. University of Applied Sciences Georg-Simon-Ohm Fachhochschule Nurnberg

    E-Print Network [OSTI]

    Fiebig, Peter

    ) an der Georg-Simon-Ohm Fachhochschule N¨urnberg C++-Programmiertechniken f¨ur High Performance Computing Access), aber auch manche Multi-Core-Systeme geh¨oren, sind im High Performance Computing (HPC) weit-Optimierung von C++-Code f¨ur High Performance Computing 26 3.1 C

  17. Simulations of Magnetic Shields for Spacecraft Simon G. Shepherd

    E-Print Network [OSTI]

    Shepherd, Simon

    magnetosphere around spacecraft: Propulsion and protection Inflating magnetic field can shield particlesSimulations of Magnetic Shields for Spacecraft Simon G. Shepherd Thayer School of Engineering Brian that controls magnetism will control the universe". -- Dick Tracy Patrick Magari and Darin Knaus Creare, Inc

  18. Noncommutative field theories: The noncommutative Chern-Simons model

    SciTech Connect (OSTI)

    Gomes, M.; Silva, A. J. da [Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, 05315-970, Sao Paulo (Brazil)

    2006-11-03T23:59:59.000Z

    We present some results on the ultraviolet/infrared mixing for canonical field theory in three and four space-time dimensions. Special emphasis is given to the analysis of theories containing the Chern-Simons field and it is argued that for supersymmetric models the effect of the mixing is in general mild leading to consistent theories as far as renormalization is concerned.

  19. Carboniferous terrigenous clastic facies, hydrocarbon producing zones, and sandstone provenance, northern shelf of Black Warrior basin

    SciTech Connect (OSTI)

    Cleaves, A.W.

    1983-09-01T23:59:59.000Z

    Deltaic and barrier-bar depositional systems from the Chester and Pottsville Groups of the Black Warrior basin produce natural gas and minor oil from 11 Mississippian sandstone reservoirs and four Pennsylvanian clastic units. Within the Chester, four major genetic sequences containing cratonic delta systems have been mapped. Chester deltas prograded southeastward onto the stable northern shelf from a cratonic source area, most likey the Ozark uplift. Net sandstone isolith maps for discrete genetic units demonstrate a northwest-to-southeast progradational trend and a tendency for the sub-Millerella units to thicken updip to the line of post-Carboniferous erosinal truncation. An isopach map of the Tuscumbia-Millerella interval shows thickening toward the north, away from the Ouachita orogenic source area. Limited petrographic evidence from Lewis and Carter sandstone bodies associated with the principal subsurface deltaic facies tract indicates a dominance of monocrystalline quartz and chert rock fragments, as well as an absence of lithologic indicators for an orogenic provenance. The Pottsville Group can be broken down into a maximum of 10 regionally mappable subsurface intervals. Widespread delta destructional coal seams and marine reworked sandstone bodies serve as marker units. Pottsville gas production derives from barrier bar facies in the lowest two genetic intervals and from the mixed barrier-bar and deltaic sandstone units of interval 3 (Nason). This Lower Pennsylvanian clastic wedge has its predominant source area to the south in the Ouachita orogenic belt. An isopach map of the total Pottsville documents significant thickening to an excess of 10,000 ft (3,000 m) in central Mississippi. All of the previously mentioned orogenic indicators are noted in the outcropping deltaic Pottsville facies.

  20. Origin of upper Bell Canyon Reservoir Sandstones (Guadalupian), El Mar and Paduca Fields, Southeast New Mexico and West Texas

    E-Print Network [OSTI]

    Weinmeister, Marcus Paul

    1978-01-01T23:59:59.000Z

    210 ft at El Mar and 120 ft at Paduca. Core examination shows that oil production comes primarily from massive sandstones having a gross thickness of over 70 ft. Single beds have a maximum thickness of 6 ft. These massive sandstones are interbedded... with organic-rich shales only 1/8 to 1 in. thick. Within non-producing sections, lithology is dominated by interlaminated siltstones and shales which are commonly bioturbated. The distribution of sandstones is in channel-like trends per- pendicular...

  1. Geothermal energy resource investigations at Mt. Spurr, Alaska

    SciTech Connect (OSTI)

    Turner, D.L.; Wescott, E.M. (eds.)

    1986-12-01T23:59:59.000Z

    Spurr volcano is a composite Quaternary cone of largely andesitic composition located on the west side of Cook Inlet about 80 miles west of Anchorage and about 40 miles from the Beluga electrical transmission line. Geologic mapping (Plate 1-1) shows that the present summit depression was produced by a Mt. St. Helens-type sector collapse, rather than by a caldera collapse. Geochronologic and previous tephrachronologic studies show that there has been an active magmatic system at Spurr volcano during the late Pleistocene-to-Holocene time interval that is of critical interest for geothermal energy resource assessment. Major effort was devoted to geochemical and geophysical surveys of the accessible area south of Mt. Spurr, in addition to geologic mapping and geochronologic studies. Many coincident mercury and helium anomalies were found, suggesting the presence of geothermal systems at depth. Extremely large electrical self-potential anomalies were also found, together with extensive zones of low resistivity discovered by our controlled-source audiomagnetotelluric survey. The juxtaposition of all of these different types of anomalies at certain areas on the south slope of Crater Peak indicates the presence of a geothermal system which should be accessible by drilling to about 2000 ft depth. It is also evident that there is a strong volcanic hazard to be evaluated in considering any development on the south side of Mt. Spurr. This hazardous situation may require angle drilling of production wells from safer areas and placement of power generation facilities at a considerable distance from hazardous areas.

  2. 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 ...

  3. Facies, depositional environments, and reservoir properties of the Shattuck sandstone, Mesa Queen Field and surrounding areas, southeastern New Mexico

    E-Print Network [OSTI]

    Haight, Jared

    2004-09-30T23:59:59.000Z

    The Shattuck Sandstone Member of the Guadalupian age Queen Formation was deposited in back-reef environments on a carbonate platform of the Northwest Shelf (Permian Basin, New Mexico, USA) during a lowstand of sea level. At Mesa Queen Field...

  4. Environment of deposition and reservoir properties of Teapot sandstones (Upper Cretaceous), Well Draw field, Converse County, Wyoming 

    E-Print Network [OSTI]

    Sullivan, John Joseph

    1982-01-01T23:59:59.000Z

    fossils, and reservoir morphology. Three distinct sandstone facies produce oil and gas at Well Draw field. The main producing zone consists of thicker, channel turbidites. The lower two zones are thinly interbedded with shale and have limited reservoir... included in thick marine shales are the Sussex, Shannon, Parkman, and Teckla (Berg, 1975, and Spearing, 1976). A major goal of this study is to determine the deposi- tional setting for subsurface Teapot sandstones of the southern basin area. Previous...

  5. Depositional environment and reservoir characteristics of the lower Vicksburg sandstones, east McAllen Ranch Field, Hidalgo County, Texas

    E-Print Network [OSTI]

    Shoemaker, Philip W

    1978-01-01T23:59:59.000Z

    light and dark color bands; 12642 ? 12643 feet. C, Bedset composed of laminated "B" division, with in- clined laminae cut by a small fault (arrow), overlain by a thin "E" shale division, followed by a massive "A" division; 12645 ? 12646 feet. D... of these sand- stones. The sandstones are present as stacked, non-associated reservoirs, within slump blocks which lie just downdip from an uplifted Jackson shale mass and an associated growth fault. These sandstones produce gas from complexly...

  6. 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

    be difficult to distinguish reservoir from non-reservoir intervals in successions of thinly interbedded sandstones and shales using conventional well logs; (3) There is limited outcrop analogue data that could be used to estimate the geometry and lateral... the depositional geometry and continuity of deep-water reservoir sandstones within the Basal Unit of the Scotland Formation in Woodbourne Trough, beneath Barbados. Observations in the study area were combined with observations of local outcrops of the Scotland...

  7. Hydrogeologic characterization of the Hickory Sandstone Aquifer near Camp Air in northern Mason and southern McCulloch counties, Texas

    E-Print Network [OSTI]

    Delaney, Cynthia Daphine

    1990-01-01T23:59:59.000Z

    Hickory Sandstone is the primary source of ground water for the Western Uano Region of Central Texas. Irrigation from the Hickory Aquifer has been intensive for the past 15 years. Available hydrogeologic data for development of a management model... are very limited. Localized detailed studies of the spatial and temporal variations within the aquifer were conducted to provide data for characterization of the ground-water flow system. Field investigations of the Hickory Sandstone included geologic...

  8. Authigenic clay minerals in sandstones of the Delaware Mountain Group: Bell Canyon and Cherry Canyon Formations, Waha Field, West Texas

    E-Print Network [OSTI]

    Walling, Suzette Denise

    1992-01-01T23:59:59.000Z

    AUTHIGENIC CLAY MINERALS IN SANDSTONES OF THE DELAWARE MOUNTAIN GROUP: BELL CANYON AND CHERRY CANYON FORMATIONS, WAHA FIELD, WEST TEXAS A Thesis by SUZETTE DENISE WALLING 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 1992 Major Subject: Geology AUTHIGENIC CLAY MINERALS IN SANDSTONES OF THE DELAWARE MOUNTAIN GROUP: BELL CANYON AND CHERRY CANYON FORMATIONS, WAHA FIELD, WEST TEXAS...

  9. Diagenesis of Woodbine and Sub-Clarksville sandstones at the Kurten and Iola field areas, Brazos and Grimes Counties, Texas

    E-Print Network [OSTI]

    Frossard, Michael Louis

    1982-01-01T23:59:59.000Z

    Diagenesis of Woodbine' and Sub-Clarksville Sandstones at the Kurten and Iola Field Areas, Brazos and Grimes Counties, Texas A Thesis by MICHAEL LOUIS FROSSARD Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE December 1982 Major Subject: Geology DIAGENESIS OF WOODBINE AND SUB-CLARKSVILLE SANDSTONES AT THE KURTEN AND IOLA FIELD AREAS, BRAZOS AND GRIMES COUNTIES, TEXAS A Thesis by MICHAEL LOUIS FROSSARD...

  10. The environment of deposition of the Oligocene Burbank sandstone, Tulare Lake field, Kings County, California

    E-Print Network [OSTI]

    Goulet, William Haack

    1986-01-01T23:59:59.000Z

    ~ ? ?" A A'"" "?& ~" ?e ? e?e ~ l 330 8::. :: I I I I I I ! Figure 7-Composition and texture of the Burbank sandstone from the Husky KCDC 54-8 core. Grain size fines upwards within beds. CHEVRON SALYER 677 0 I 3099 GRAIN SIZE rnm 2. 0 I, O 0. 5... 0. 25 O. I25 COMPOS I 7 ION % 0 50 IOO I I I I I I ~ FLD MX r. r gl MAX M EAN I3I02 A E RX l3I04 E 0 ~ - l3I06::. ': 8 r N % ~=ii%0 A 0 I3I 8 Figure 8-Composition and texture of the Burbank sandstone from the Chevron Salyer 677 core...

  11. Improved reservoir characterization of the Rose Run sandstone on the East Randolph Field, Portage County, Ohio

    SciTech Connect (OSTI)

    Safley, I.E. [BDM-Oklahoma, Bartlesville, OK (United States); Thomas, J.B. [Belden & Blake Corp., North Canton, OH (United States)

    1996-09-01T23:59:59.000Z

    The East Randolph Field, located in Randolph Township, Portage County, Ohio, produces oil and gas from the Cambrian Rose Run sandstone unit, a member of the Knox Supergroup. Field development and infill drilling opportunities illustrate the need for improved reservoir characterization of the hydrocarbon productive intervals. This reservoir study is conducted under the Department of Energy`s Reservoir Management Program with professionals from BDM-Oklahoma and Belden & Blake Corporation. Well log and core analyses were conducted to determine the reservoir distribution, the heterogeneity of the hydrocarbon producing intervals, and the effects of faulting and fracturing on well productivity. The Rose Run sandstones and interbedded dolomites were subdivided into three productive intervals. Cross sections were constructed for correlation of individual layers and identification of localized faulting. The geologic data was input into GeoGraphix software for construction of structure, net pay, production, and gas- and water-oil ratio maps.

  12. Core analysis in a low permeability sandstone reservoir: Results from the Multiwell Experiment

    SciTech Connect (OSTI)

    Sattler, A.R.

    1989-04-01T23:59:59.000Z

    Over 4100 ft (1100 ft oriented) of Mesaverde core was taken during the drilling of the three Multiwell Experiment (MWX) wells, for study in a comprehensive core analysis program. This core traversed five separate depositional environments (shoreline/marine, coastal, paludal, fluvial, and paralic), and almost every major sand in the Mesaverde at the site was sampled. This paper summarizes MWX core analysis and describes the petrophysical properties at the MWX site; reservoir parameters, including permeabilities of naturally fractured core; and mechanical rock properties including stress-related measurements. Some correlations are made between reservoir properties and mineralogy/petrology data. Comparisons are made between the properties of lenticular and blanket sandstone morphologies existing at the site. This paper provides an overview of a complete core analysis in a low-permeability sandstone reservoir. 66 refs., 17 figs. , 9 tabs.

  13. Depositional environment of jurassic smackover sandstones, Thomasville field, Rankin County, Mississippi

    E-Print Network [OSTI]

    Olsen, Rebecca Sarah Penfield

    1980-01-01T23:59:59.000Z

    of an ancient oil pool. Heat and burial cracked the oil, releasing the lighter, more volatile fractions and leaving a residue of pyrobitumen and heavy oil. On the basis of log character, it is possible to dis- tinguish between most sandstones, limestones... in the grammatical and quantitative editing of the manuscript. Hunt Energy Corporation provided funding, cores, and valuable information on Thomasville field. Hunt's aid to this study is greatly appreciated. Alan Thomson's (Shell Oil Co. ) comments on various...

  14. Depositional environment and facies relationships of the Canyon sandstone, Val Verde Basin, Texas 

    E-Print Network [OSTI]

    Mitchell, Michael Harold

    1975-01-01T23:59:59.000Z

    (Wolfcamp) time, there was an acceleration in the rate of downwarping of the trough as indicated by over 14, 000 ft of Wolfca+ain sediments (Young, 1960). L. These thick Wolfcampian deposits consist largely of interbedded shale and sandstone. The shale... of the American Association of Petroleum Geologists Bulleti. n. concerning many details. The Val Verde Basin is an elongate, asymmetric trough that trends northwest-southeast in southwest Texas (Fig. 1). The basin is presently bounded by the Marathon fold belt...

  15. Facies distribution of upper cretaceous Woodbine Sandstones, southern Kurten Field, Brazos County, Texas 

    E-Print Network [OSTI]

    Leethem, John Thomas

    1984-01-01T23:59:59.000Z

    , discontinuous clay laminae ranging from 1 mm to 2 mm thick. These could have been deposited as clay drapes which filled ripple troughs and outlined ripple lenses. Compaction after deposition appears to have contorted the shale laminae and makes... that extended from the Arctic to the Gulf of Mexico (Reeside, 1957; Gill and Cobban, 1973). The Woodbine Formation consists of sandstones and shales deposited largely in nearshore environments along the margin of the TEXARKANA EQI4 ~ I g ~cy J 0 'z (D...

  16. Properties of natural gas reservoirs in Cotton Valley sandstones, northwest Louisiana

    E-Print Network [OSTI]

    Sonnenberg, Stephen Arnold

    1975-01-01T23:59:59.000Z

    th) n sections using luminescence petrography (Sippel, 196R ), and in small fractured specimens under the scanning elec- tron microscope. Luminescence petrography was used to distinguish authigenic quartz from detrital quartz and to determine... of Davis sandstone, Tenneco Osby, illustrating a quartz surface possibly etched by calcite cement. The calcite was removed by HCl before viewing (9203). Bar represents 10 micr ometers. 53 54 results in triangular pore shapes (Figure 20C). Under...

  17. Depositional environments of Lower Cretaceous Muddy Sandstones, Recluse area, Campbell County, Wyoming

    E-Print Network [OSTI]

    Stoudt, David Luther

    1974-01-01T23:59:59.000Z

    log plotted in conjunction with compositional and textural analysis 17 18 Pan American Norfolk No. A-2 electrical log plotted in conjunction with compositional and textural analysis Arco Heard Federal No. 6 electric log plotted in conjunction... structures and bedding. A core from the Arco Bow and Arrow No. 3 well (NW SE Sec. 25, T. 75N. , R. 75W. ) illustrates the characteristics of two reser- voirs, the fifth and sixth Muddy sandstones. The sixth Muddy is characterized by cross laminations...

  18. Depositional environment of woodbine sandstones, Polk, Tyler and San Jacinto Counties, Texas

    E-Print Network [OSTI]

    Foss, Deane Campbell

    1978-01-01T23:59:59.000Z

    . . . . . . . . . . . . . . . . . . . . . . . . . 73 INTRODUCTION Prior to 1969, oil and gas production from Woodbine sandstones in Texas was restricted to updip areas well north of San Jacinto, Polk, and Tyler Counties (Figure 1). These older Woodbine reservoirs have been interpreted as fluvial... of oil in degrees API c. SITP = shut-in tubing pressure (pounds per square in. ) BHSIP = bottom hole shut-in pressure (pounds per square in. ) 22 while wells in the Seven Oaks field are normally pressured. Accord- ing to Kiatta (1974), Hortense...

  19. Hydrodynamic flow in Lower Cretaceous Muddy Sandstones, Rozet Field, Powder River Basin, Wyoming

    E-Print Network [OSTI]

    Smith, David Arthur

    1984-01-01T23:59:59.000Z

    /km) across the field yields a hydrodynamic oil column of 420 ft (128 m). Capillary pressure differences due to permeability changes account for a oil column of 72 ft (42 m). The combined capillary and hydrodynamic oil columns of 492 ft (150 m) compares... and other Muddy Formation oil fields. Contour interval 1000 ft (305 m). . . Regional east-west cross section showing variable sandstone development in the Muddy interval from Kitty to Rozet Fields. . . . . . . . . Diagrammatic environments the northern...

  20. The effect of various mud filtrates on the permeability of sandstone cores

    E-Print Network [OSTI]

    Pfile, Robert Ambrose

    1954-01-01T23:59:59.000Z

    ' or the Degree of MASTER OF SCIENCE August, 1954 MAJOR SUBJECT: PETROLEUM ENGINEERING THE EFFECT OF VARIOUS MUD FILTRATES ON THE PERMEABILITY OF SANDSTONE CORES A Thesis By Robert A. Pfile Appr ved as to styIe and content by: (Chairman of mmittee... kind and amount of clay contained in the different cores. INTRODUCTION There is general agreement among members of the petroleum industry that the productive capacity of a well penetrating a clay- containing oil sand may be seriously impaired due...

  1. Depositional environment and reservoir characteristics of the upper Frio sandstones, Willamar field, Willacy County, Texas

    E-Print Network [OSTI]

    Caram, Hector Luis

    1988-01-01T23:59:59.000Z

    DEEGSITICNAL ENVIRONMENT AND ~IR CHABACZERISIICS OF THE UPPER FRIO SANDBKNES, WILIAMAR FIEID, WILZACY COUNTY, TEXAS Submitted to the Graduate College of Texas A&M University in partial ~fillment of the reguirements for the degree of MASZER... OF SCIENCE December 1988 Major Subject: Geology DEPOSITIONAL ENVIRCINNENZ AND RESERVOIR CHARACIKRISTICS OF THE UPPER FRIO SANDSTONES, WI~ FIEID WILIACY ~, TEXAS A Thesis HECIOR IIJIS CARAM Approved as to style and content by: ~ R. Berg (Chair...

  2. Environment of deposition of the Pennsylvanian Bartlesville Sandstone, Labette County, Kansas

    E-Print Network [OSTI]

    Johnson, Charles Truman Lars

    1973-01-01T23:59:59.000Z

    were available for study. Published reports on the Bartlesville Sandstone in Kansas, Missouri, and Oklahoma (Bass, 1936, Howe, 1956j Weirich, 1953; Hayes, 1963; Pharos, 1969; Visher, Saitta B. and Phares, 1971) provided additional information..., with the Chautauqua Arch forming a connection between the two uplifts (Figure 2). By Late Devonian time the Chautaugua Arch was no longer active, Eastern Kansas was divided by the Bourbon Arch into the Forest City and Cherokee Basins in Late Mississippian time...

  3. 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...

  4. Depositional environment of Canyon (Cisco) sandstones, North Jameson field Mitchell County, Texas 

    E-Print Network [OSTI]

    Dally, David Jesse

    1983-01-01T23:59:59.000Z

    in the lower shale; 6236 ft (1900. 7 m). Figure 7. Sedimentary structures in Canyon (Cisco) sand- stones, Sun McCa, be B-5, Jameson (North) Strawn field, Mitchell County, Texas. Boldface letters (lower left) refer to photographs; small capital letters...DEPOSITIONAL ENVIRONMENT OF CANYON (CISCO) SANDSTONES, NORTH JAMESON FIELD MITCHELL COUNTY, TEXAS A Thesis DAVID JESSE DALLY Submitted to the Graduate College of' Texas A&M University in partial fulfillment of the requirement for the degree...

  5. Depositional environment and reservoir morphology of the Frio sandstones, Nine Mile Point Field, Aransas County, Texas 

    E-Print Network [OSTI]

    Powell, Raina Rae

    1976-01-01T23:59:59.000Z

    of Department (M August 1976 Depositional Environment and Reservoir Norphology of the Frio Sandstones, N1ne Nile Point Field, Aransas County~ Texas (August 1975) ~ Rains Rae Powell~ B, S? ~ Stephen F Austin State University Ch~ of Advisory Caamitteee Dr...), massive and laminated (AB) ~ and laminated only (B) divisions characterize the Frio, Bedsets are of'ten separated by middle-neritic, h1oturbated shales (E), and occasionally a rippled (C) and finely laminated (D) division are present A and AB bedsets...

  6. Frictional properties between fine grained limestone, dolomite and sandstone along precut surfaces 

    E-Print Network [OSTI]

    Iwasaki, Takeshi

    1970-01-01T23:59:59.000Z

    characteristic parallel lines upon its surface in the direction of slid- ing. If the two materials are the same, both surfaces flow equally, and mutual adhesion and welding occur at the points of contact. In the latter case, frictional work is required... FRICTIONAL PROPERTIES BETNEEN FINE GRAINED I, IMESTONE, DOLOMI"'E AND SANDSTONE ALONG PRECUT SURFACFS A Thesis TAKESHI INASAKI Submitted to the Graduate College of Texas MN University in partial fulfillment of the requirements for the degree...

  7. An In-depth Investigation of an Aluminum Chloride Retarded Mud Acid System on Sandstone Reservoirs

    E-Print Network [OSTI]

    Aneto, Nnenna

    2012-07-16T23:59:59.000Z

    in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Hisham Nasr-El-Din Committee Members, Jerome Schubert Mahmoud El-Halwagi Head of Department, Stephen Holditch May 2012 Major... Committee: Dr. Hisham Nasr-El-Din Sandstone acidizing using mud acid is a quick and complex process where dissolution and precipitation occur simultaneously. Retarded mud acids are less reactive with the rock reducing the reaction rate hence increased...

  8. Strength and failure characteristics of sandstones under moderate pore and confining pressures 

    E-Print Network [OSTI]

    Neathery, Orphie

    1965-01-01T23:59:59.000Z

    PROCEDURE 31 Selection and Preparation of Samples 31 Procedure for Triaxial Tests 32 Physical Property Determination 33 RESULTS 36 Strength and Failure Characteristics 36 Influence of Physical Properties on Strength Characteristics 45 C ON C L US IO... submerged in the oil until the time of their testing. The remaining unsaturated plugs from each sandstone sample were kept for porosity, permeability, sonic velocity and capillary pressure determinations. 32 Procedure for Triaxial Tests In the triaxial...

  9. Depositional environment of Upper Devonian sandstones in Westmoreland County, southwestern Pennsylvania

    E-Print Network [OSTI]

    McGee, Patricia Ann

    1985-01-01T23:59:59.000Z

    standard microscopic techniques. Composition was determined for each thin section by using 100 point counts. Mean size was determined from long axis measurement of 100 monocrystalline quartz grains in each thin section. The rock properties as determined... quartz to monocrystalline quartz to increase with increasing grain size. This relationship is demonstrated by a sample from the Bayard Sandstone (2544. 6) in which the amount of polycrystalline quartz is 41% of the total quartz and the mean grain...

  10. Petrography and prediction of reservoir rock properties in the Sussex Sandstone, Powder River Basin, Wyoming

    E-Print Network [OSTI]

    Shirley, Richard Hoyt

    1977-01-01T23:59:59.000Z

    to determine rock composition and texture. Composition was established by point count of 100 grains. Framework grains were identified and counted as monocrystalline quartz, polycrystalline quartz, volcanic rock fragments, potassium feldspar, plagioclase... and quiet water deposition of shale was resumed. The sandstone is classified as a volcanic aronite based on a det: ital composition averaging 59 percent quartz, including both monccrystalline and polycrystalline varieties, 18 percent rock frag- ments...

  11. Oil recovery by carbon dioxide injection into consolidated and unconsolidated sandstone 

    E-Print Network [OSTI]

    Lin, Fwu-Jin Frank

    1975-01-01T23:59:59.000Z

    a displacement effic1ency approaching 100 percent. (3) Carbon Dioxide neither achieves direct miscible displacement at practical reservoir pressures, like LPG, nor depend upon the presence of light hydrocarbons in the reservoir oil. A f1eld... strong function of pore size dis- tribution, probably contributed a great effect on the oil displacement effic1enc1es between the consolidated sandstone core and the unconsolidated sand pack. 4. No significant over-riding effect of carbon dioxide...

  12. Properties of MT2 in the massless limit

    E-Print Network [OSTI]

    Colin H. Lally; Christopher G. Lester

    2013-09-10T23:59:59.000Z

    Although numerical methods are required to evaluate the stransverse mass, MT2, for general input momenta, non-numerical methods have been proposed for some special clases of input momenta. One special case, considered in this note, is the so-called `massless limit' in which all four daughter objects (comprising one invisible particle and one visible system from each `side' of the event) have zero mass. This note establishes that it is possible to construct a stable and accurate implementation for evaluating MT2 based on an analytic expression valid in that massless limit. Although this implementation is found to have no significant speed improvements over existing evaluation strategies, it leads to an unexpected by-product: namely a secondary variable, that is found to be very similar to MT2 for much of its input-space and yet is much faster to calculate. This is potentially of interest for hardware applications that require very fast estimation of a mass scale (or QCD background discriminant) based on a hypothesis of pair production -- as might be required by a high luminosity trigger for a search for pair production of new massive states undergoing few subsequent decays (eg di-squark or di-slepton production). This is an application to which the contransverse mass MCT has previously been well suited due to its simplicity and ease of evaluation. Though the new variable requires a quadratic root to be found, it (like MCT) does not require iteration to compute, and is found to perform better then MCT in circumstances in which the information from the missing transverse momentum (which the former retains and the latter discards) is both reliable and useful.

  13. Aux Vases Sandstone diagenesis: Implications for hydrocarbon recovery from southern Illinois reservoirs

    SciTech Connect (OSTI)

    Seyler, B.D.; Beaty, D.S.; Huff, B.G. (Illinois State Geological Survey, Champaign (United States))

    1991-03-01T23:59:59.000Z

    The Aux Vases Sandstone (Mississippian) is a problematic yet productive reservoir in the Illinois basin. The Aux Vases Formation was deposited in a mixed siliciclastic-carbonate offshore environment. Hydrocarbon reservoirs are dominantly elongate sandstone bodies interpreted as subtidal facies within a prograding tidally influenced deposystem. Oil saturated zones, in most cases, are composed of fine-grained, cross-bedded, friable, feldspathic quartz sandstone. Resistivity logs, even from productive wells, are typically characterized by unusually low resistivities (2-4 ohms) that lead to high calculated water saturations. X-ray diffraction, SEM/EDS, and thin section studies were used to analyze diagenetic processes that may affect hydrocarbon production in several Aux Vases reservoirs. Diagenetic processes common to the field studied include: (1) early calcite cementation occluding primary porosity and inhibiting compaction, (2) dissolution of feldspar grains to form authigenic clay, (3) dissolution of early calcite cement, (4) diagenesis of detrital clay minerals into new authigenic clay minerals, and (5) multiple stages of quartz overgrowths that reduce porosity. Commonly used drilling and completion practices may adversely affect reservoir quality by reacting with diagenetic products. Loosening of the fine mineral fraction that causes migration of fines and swelling of expandable clay minerals are examples of this type of damage. Knowledge of reservoir mineralogy and diagenesis may influence drilling and completion practices and affect selection of secondary and tertiary recovery methods.

  14. MT Energie GmbH Co KG | 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:LandownersLuther, Oklahoma:EnergyECO Auger <SmarTurbineMIT-MRINewMT Energie

  15. RAPID/Roadmap/17-MT-b | 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 | Roadmap Jump to: navigation, search RAPIDaUT-ab <-MT-b

  16. RAPID/Roadmap/17-MT-d | 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 | Roadmap Jump to: navigation, search RAPIDaUT-ab <-MT-bd

  17. RAPID/Roadmap/5-MT-a | 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 | Roadmap Jump to: navigation, searche <caMT-a <

  18. RAPID/Roadmap/9-MT-a | 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 | Roadmap Jump to:b < RAPID‎ | Roadmap JumpMT-a <

  19. City of Mt Pleasant, Utah (Utility Company) | 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 directedAnnual Siteof EnergyInnovationin Urban TransportMartinsville,Minidoka,City ofIowaMt Pleasant,

  20. Mt Princeton Hot Springs Geothermal Area | 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 directedAnnual SiteofEvaluatingGroup |JilinLu anMicrogreenMoon LakeMountain ElectricMt Princeton Hot Springs

  1. Mt Wheeler Power, Inc (Utah) | 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 directedAnnual SiteofEvaluatingGroup |JilinLu anMicrogreenMoon LakeMountain ElectricMt Princeton Hot

  2. Mt Carmel Public Utility Co | 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 JumpMarysville,Missoula,MontereyHill,Spurr GeothermalInformation Biofuels,(RECP)Mt

  3. Mt St Helens Geothermal Area | Open Energy Information

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    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 JumpMarysville,Missoula,MontereyHill,Spurr GeothermalInformationMt

  4. RAPID/Roadmap/1-MT-a | 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 GeothermalPotentialBiopowerSolidGenerationMethodInformation TexasTexas) Redirect page JumpAK-aHI-aMT-a

  5. RAPID/Roadmap/13-MT-a | 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 GeothermalPotentialBiopowerSolidGenerationMethodInformation TexasTexas)ID-a < RAPID‎ID-a <MT-a

  6. RAPID/Roadmap/4-MT-a | 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 GeothermalPotentialBiopowerSolidGenerationMethodInformatione < RAPID‎ |gWA-eID-b <aibHI-aMT-a

  7. National uranium resource evaluation. Geology and recognition criteria for sandstone uranium deposits of the salt wash type, Colorado Plateau Province. Final report

    SciTech Connect (OSTI)

    Thamm, J.K.; Kovschak, A.A. Jr.; Adams, S.S.

    1981-01-01T23:59:59.000Z

    The uranium-vanadium deposits of the Salt Wash Member of the Morrison Formation in the Colorado Plateau are similar to sandstone uranium deposits elsewhere in the USA. The differences between Salt Wash deposits and other sandstone uranium deposits are also significant. The Salt Wash deposits are unique among sandstone deposits in that they are dominantly vanadium deposits with accessory uranium. The Salt Wash ores generally occur entirely within reduced sandstone, without adjacent tongues of oxidized sandstone. They are more like the deposits of Grants, which similarly occur in reduced sandstones. Recent studies of the Grants deposits have identified alteration assemblages which are asymmetrically distributed about the deposits and provide a basis for a genetic model for those deposits. The alteration types recognized by Shawe in the Slick Rock district may provide similar constraints on ore formation when expanded to broader areas and more complete chemical analyses.

  8. Monitoring and Targeting (M&T): A Low Investment, Low Risk Approach to Energy Cost Savings

    E-Print Network [OSTI]

    McMullan, A.; Rutkowski, M.; Karp, A.

    Monitoring and Targeting (M&T): A Low Investment, Low Risk Approach to Energy Cost Savings Andrew McMullan Mike Rutkowski Alan Karp Vice President President Manager Bus. Development VERITECH, INC. Sterling, VA ABSTRACT Monitoring... and Targeting (M&T) is a disciplined approach to energy management that ensures that energy resources are used to their maximmn economic advantage. M&T serves two principal functions: ? Ongoing, day-to-day control of energy use ? Planned improvements...

  9. ,"Port of Del Bonita, MT Natural Gas Pipeline Imports From Canada...

    U.S. Energy Information Administration (EIA) Indexed Site

    Del Bonita, MT Natural Gas Pipeline Imports From Canada (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest...

  10. Constitution of the Interactive Arts and Technology Student Union of the Simon Fraser Student Society

    E-Print Network [OSTI]

    Constitution of the Interactive Arts and Technology Student Union of the Simon Fraser Student Society May 12, 2010 Article 1 ­ Name The name of the Union shall be the "Interactive Arts and Technology of Interactive Arts and Technology, the University, the Simon Fraser Student Society (hereinafter referred

  11. Industrial Research Chair in Energy Systems for Smart Cities SIMON FRASER UNIVERSITY, CANADA

    E-Print Network [OSTI]

    Industrial Research Chair in Energy Systems for Smart Cities SIMON FRASER UNIVERSITY, CANADA energy, as well as any other renewable energy sources and related technology in alignment The Faculty of Applied Sciences at Simon Fraser University, British Columbia, Canada, invites applications

  12. Rigorous Object-Oriented System Design Anthony J H Simons, University of Sheffield,

    E-Print Network [OSTI]

    Simons, Anthony J. H.

    Rigorous Object-Oriented System Design Anthony J H Simons, University of Sheffield, Monique Snoeck-Oriented System Design Rigorous Object-Oriented System Design Anthony J H Simons, University of Sheffield, Monique is presented. 1. Introduction The vast majority of object-oriented analysis and design methods agree

  13. CHERN-SIMONS CLASSES FOR A SUPERCONNECTION JAYA NN IYER AND UMA N IYER

    E-Print Network [OSTI]

    Iyer, Jaya N,

    CHERN-SIMONS CLASSES FOR A SUPERCONNECTION JAYA NN IYER AND UMA N IYER Abstract. In this note we define the Chern-Simons classes of a flat superconnection, D + L, on a complex Z/2Z-graded vector bundle looked into the case of defining the Chern character of a superconnection D + L on a Z/2Z-graded complex

  14. Page 1 of 4 Policy R50.03 SIMON FRASER UNIVERSITY

    E-Print Network [OSTI]

    of Simon Fraser University. They are valued members of the community, who may be funded through fellowships of designation by others or their source of funding. This Policy does not apply to University Research AssociatesPage 1 of 4 Policy R50.03 SIMON FRASER UNIVERSITY Policies and Procedures Date October 26, 2000

  15. MT-SDF: Scheduled Dataflow Architecture with mini-threads Domenico Pace

    E-Print Network [OSTI]

    Kavi, Krishna

    MT-SDF: Scheduled Dataflow Architecture with mini-threads Domenico Pace University of Pisa Pisa Dataflow (SDF) architecture. We call the new architecture MT-SDF. We introduce mini-threads to execute and quantitative comparison of the mini-threads with the original SDF architecture, and out-of-order superscalar

  16. An assessment of regional climate trends and changes to the Mt. Jaya glaciers of Irian Jaya

    E-Print Network [OSTI]

    Kincaid, Joni L.

    2007-09-17T23:59:59.000Z

    on the Mt. Jaya glaciers has been lacking since the early 1970s. Using IKONOS satellite images, the ice extents of the Mt. Jaya glaciers in 2000, 2002, 2003, 2004, and 2005 were mapped. The mapping indicates that the recessional trend which began in the mid...

  17. Intraspecific evolution of Canary Island Plecotine bats, based on mtDNA sequences

    E-Print Network [OSTI]

    Brown, Richard

    Intraspecific evolution of Canary Island Plecotine bats, based on mtDNA sequences J Pestano1 , RP investigated in the endemic Canary Island bat Plecotus teneriffae, based on B1 kb of mtDNA from the 16S r of differentiation between Canary Islands were quite high relative to Pipis- trelle-like bats, consistent

  18. Visual Field Maps, Population Receptive Field Sizes, and Visual Field Coverage in the Human MT Complex

    E-Print Network [OSTI]

    Dumoulin, Serge O.

    of processing in human motion-selective cortex. I N T R O D U C T I O N Neuroimaging experiments localize human by additional experiments. Defining human MT based on stimulus selectivity means that the identificationVisual Field Maps, Population Receptive Field Sizes, and Visual Field Coverage in the Human MT

  19. A MT System from Turkmen to Turkish Employing Finite State and Statistical Methods

    E-Print Network [OSTI]

    Yanikoglu, Berrin

    between close language pairs can be relatively easier and can still benefit from simple(r) paradigms in MT with a disambiguation post-processing stage based on statistical language models. The very productive inflectionalA MT System from Turkmen to Turkish Employing Finite State and Statistical Methods A. Cüneyd TANTU

  20. Static Length Scales of N=6 Chern-Simons Plasma

    E-Print Network [OSTI]

    Dongsu Bak; Kazem Bitaghsir Fadafan; Hyunsoo Min

    2010-04-19T23:59:59.000Z

    Using gravity description, we compute various static length scales of N=6 Chern Simons plasma in a strongly coupled regime. For this, we consider the CP3 compactification of the type IIA supergravity down to four dimensions, and identify all the low-lying bosonic modes up to masses corresponding to the operator dimension 3 together with all the remaining CP3 invariant modes. We find the true mass gap, the Debye screening mass and the corresponding dual operators to be probed in the field theory side.

  1. Characterization of a sandstone reservoir using seismic methods: Yowlumne Field, Kern County, California 

    E-Print Network [OSTI]

    Proust, Rodrigo Diez

    1988-01-01T23:59:59.000Z

    shale, and 2) the high V;-sones identifled for regions outside these boundaries may contain reservoir-quality rocks. To My Parents ACKNOWLEDGMENTS I wish to express my gratitude to Dr. Anthony Gangi. chairman of my com- mittee, for discussing... ft/s per ft (0. 464 m/s per m) to a maximum depth of 13, 500 ft (4114. 8 m). Rapid lateral variations in lithology prevented him from identifying shales or sandstones using velocities. The variation of velocity with respect to depth was considered...

  2. STRUCTURAL HETEROGENEITIES AND PALEO FLUID FLOW IN AN ANALOG SANDSTONE RESERVOIR 2001-2004

    SciTech Connect (OSTI)

    Pollard, David; Aydin, Atilla

    2005-02-22T23:59:59.000Z

    Fractures and faults are brittle structural heterogeneities that can act both as conduits and barriers with respect to fluid flow in rock. This range in the hydraulic effects of fractures and faults greatly complicates the challenges faced by geoscientists working on important problems: from groundwater aquifer and hydrocarbon reservoir management, to subsurface contaminant fate and transport, to underground nuclear waste isolation, to the subsurface sequestration of CO2 produced during fossil-fuel combustion. The research performed under DOE grant DE-FG03-94ER14462 aimed to address these challenges by laying a solid foundation, based on detailed geological mapping, laboratory experiments, and physical process modeling, on which to build our interpretive and predictive capabilities regarding the structure, patterns, and fluid flow properties of fractures and faults in sandstone reservoirs. The material in this final technical report focuses on the period of the investigation from July 1, 2001 to October 31, 2004. The Aztec Sandstone at the Valley of Fire, Nevada, provides an unusually rich natural laboratory in which exposures of joints, shear deformation bands, compaction bands and faults at scales ranging from centimeters to kilometers can be studied in an analog for sandstone aquifers and reservoirs. The suite of structures there has been documented and studied in detail using a combination of low-altitude aerial photography, outcrop-scale mapping and advanced computational analysis. In addition, chemical alteration patterns indicative of multiple paleo fluid flow events have been mapped at outcrop, local and regional scales. The Valley of Fire region has experienced multiple episodes of fluid flow and this is readily evident in the vibrant patterns of chemical alteration from which the Valley of Fire derives its name. We have successfully integrated detailed field and petrographic observation and analysis, process-based mechanical modeling, and numerical simulation of fluid flow to study a typical sandstone aquifer/reservoir at a variety of scales. We have produced many tools and insights which can be applied to active subsurface flow systems and practical problems of pressing global importance.

  3. Facies distribution of upper cretaceous Woodbine Sandstones, southern Kurten Field, Brazos County, Texas

    E-Print Network [OSTI]

    Leethem, John Thomas

    1984-01-01T23:59:59.000Z

    CI EAST TEXAS TYLER FIELD I SABINE - UPLlFT I' 7 ~ Z 1 . '~+ KURTEN'-, g' ?qS+ +POLK TYLER N TEXAS SEVEN OAKS 0 50 mi SUGAR CREEK 0 80 km Figure 1. Nap of northeast Texas showing major structural features and Woodbine oil production..., anticlines and salt domes were the targets of early exploration in east Texas. The Woodbine sandstones are prolific oil and gas producers in the East Texas basin. Although this mature petroleum province has been productive for more than 50 years, new...

  4. A study of uranium distribution in an upper Jackson lignite-sandstone ore body, South Texas

    E-Print Network [OSTI]

    Chatham, James Randall

    1979-01-01T23:59:59.000Z

    -central Wyoming (Denson, 1959). Since then similar discoveries have been made in North and South Dakota, Montana, Idaho, New Mexico, and most recently, in Texas. Porous, organic-r1ch sediments have repeatedly been proven to be favorable sites for uranium...A STUDY OF URANIUM DISTRIBUTION IN AN UPPER JACKSON LIGNITE-SANDSTONE ORE BODY, SOUTH TEXAS A Thesis James Randall Chatham Subnitted to the Graduate College of Texas A8M University in Partial fulfillment of the requirement for the degree...

  5. Characterization of a sandstone reservoir using seismic methods: Yowlumne Field, Kern County, California

    E-Print Network [OSTI]

    Proust, Rodrigo Diez

    1988-01-01T23:59:59.000Z

    shale, and 2) the high V;-sones identifled for regions outside these boundaries may contain reservoir-quality rocks. To My Parents ACKNOWLEDGMENTS I wish to express my gratitude to Dr. Anthony Gangi. chairman of my com- mittee, for discussing... ft/s per ft (0. 464 m/s per m) to a maximum depth of 13, 500 ft (4114. 8 m). Rapid lateral variations in lithology prevented him from identifying shales or sandstones using velocities. The variation of velocity with respect to depth was considered...

  6. Depositional environment of upper Wilcox sandstones, Northeast Thompsonville field, Jim Hogg and Webb Counties, Texas

    E-Print Network [OSTI]

    Tedford, Fredrick John

    1977-01-01T23:59:59.000Z

    to 200 ft thick at depths of 9, 390 to 13, 700 ft. The sandstones occur in a rapidly thickening section of black marine shale and are located some 20 mi downdip from upper Wilcox rocks that have been interpreted as a marine shelf facies. Cores from.... Funds were provided by General Crude Oil Company in the form of a fellowship grant. Mr. Dick Moore of General Crude supplied elec- tric logs and provided me with several valuable suggestions. Cores and core analyses were provided by Shell Oil Company...

  7. Contrasting depositional processes of Sub-Clarksville and Woodbine reservoir sandstones, Grimes County, Texas

    E-Print Network [OSTI]

    Barton, Robert Andrew

    1982-01-01T23:59:59.000Z

    time allowed, I would liked to have drawn more upon his expertise for this study. I would also like to thank Dr. Tieh, of Geology, for his willingness to look at any "troublesome" thin sections. His good-heartedness, as well as Dr. Stanton... showing the Sub-Clarksville thinning to the east and west in a structure low. . . . 81 21. Isopach of the Sub-Clarksville Sandstone. Contour interval is 5 ft 82 22. Se' mic line that extends northwest- southeast across Hill field showing salt...

  8. Depositional environment of Upper Devonian gas producing sandstones, Westmoreland County, southwestern Pennsylvania

    E-Print Network [OSTI]

    Work, Rebecca Miller

    1988-01-01T23:59:59.000Z

    for each sandstone; for each thin section, 100 monocrystalline quartz grains were counted. 37 LLOYDSVILLE SPORTSMAN ASSOCIATION I GRAIN SIZE mm 2. 0 I. O 0. 5 0. 25 O. I2 COMPOSITION /o CEM % 0 50 100 0 30 I 3I95 C Ep I I I I 3I97 FIRS T BRA... or polycrystalline as determined by the number of crystals within the quartz grain. Monocrystalline quartz is composed of a single crystal, and has simple or wavy extinction. Polycrystalline quartz contains more than one crystal within the grain. If crystals...

  9. Depositional environment of Canyon (Cisco) sandstones, North Jameson field Mitchell County, Texas

    E-Print Network [OSTI]

    Dally, David Jesse

    1983-01-01T23:59:59.000Z

    deposits are dominated by "CE" and "CDE" bedsets that form sequences 0. 1 to 5. 0 ft (0. 0$ to 1. 5 m) thick. Together, these three kinds of deposits form an interbedded sand and shale wedge approximately 150 ft (46 m) thick, thinning basinward. iv... Basins. The sand. stones are part of the Cisco Group and form thin, narrow, dip-trending petroleum reservoirs. These reservoirs form stratigraphic traps in and around older carbonate reefs. Jameson (North) Strawn field is a typical basinal sandstone...

  10. Contrasting processes of deposition for the Eagleford "B" sandstone, Bryan, IDS, and Kurten fields, Brazos County, Texas

    E-Print Network [OSTI]

    Golding, Robert Martin

    1990-01-01T23:59:59.000Z

    of Meridian Oil for production data and Sandra Phillips of Arco Alaska for the loan of a most valuable reference. Thanks go to the many friends I have made while attending A&M but especially to Jack Sanford, Ron Brogdon, Andy Davidoff, and Budi...) Figure Page Index map of Brazos County showing location of major oil and gas fields productive from Eagleford sandstones. 18 Type log for the Kurten field, Amal- gamated Bonanza Lloyd 1, showing log character of the five Woodbine- Eagleford sandstones...

  11. Depositional environment and reservoir characteristics of the lower Vicksburg sandstones, west McAllen Ranch Field, Hidalgo County, Texas

    E-Print Network [OSTI]

    Marshall, William Dustin

    1978-01-01T23:59:59.000Z

    . 5 ft in thickness. This sequence represents AB turbidites probably of channel origin and con- tains minor amounts of shale. Thin-bedded sandstones are dominated by laminated and rippled sandstones of BCD turbidites with bedsets aver- aging 2. 5... at the base to 0. 09 mm at the top. Aver- age detrital compositional is 16 percent monocrystalline quartz, 35 percent feldspar, 39 percent rock fragments, 9 percent matrix and 1 percent other grains. Common cement is calcite as pore fillings and some grain...

  12. Sandstone-carbonate cycles in Tensleep Formation, eastern Bighorn basin and western Powder River basin, Wyoming

    SciTech Connect (OSTI)

    Rittersbacher, D.J.; Wheeler, D.M.; Horne, J.C.

    1986-08-01T23:59:59.000Z

    Outcrop and core study of the Tensleep Formation in the eastern Bighorn basin and western Powder River basin has revealed cyclic deposits of eolian sandstone and marine carbonate. These cycles, several meters to tens of meters thick, represent the rise and fall of sea level on the Wyoming shelf during Pennsylvanian and Early Permian time. Falling sea level was marked by development of a sharp scour surface at the base of each cycle and progradation of eolian dunes over an exposed, shallow carbonate shelf. Subsequent sea level rise resulted in the reworking of eolian sand through wave activity and burrowing organisms. Subtidal carbonates overlies the reworked eolian sands and are sandy at the base, grading upward into fossiliferous dolomite mudstones to wackestones. The sharp scour surface, normally present directly on the subtidal carbonates, indicates that erosion eliminated any regressive marine deposits by deflation to the ground-water table during shoreline progradation or by deflation related to abrupt drop in sea level. Relative sea level changes on the low-relief Wyoming shelf affected large areas during Tensleep deposition. This resulted in widespread sandstone-carbonate cycles that provide the basis for regional correlations of the Tensleep Formation throughout the eastern Bighorn basin and western Powder River basin.

  13. Reservoir heterogeneity in Carboniferous sandstone of the Black Warrior basin. Final report

    SciTech Connect (OSTI)

    Kugler, R.L.; Pashin, J.C.; Carroll, R.E.; Irvin, G.D.; Moore, H.E.

    1994-04-01T23:59:59.000Z

    Although oil production in the Black Warrior basin of Alabama is declining, additional oil may be produced through improved recovery strategies, such as waterflooding, chemical injection, strategic well placement, and infill drilling. High-quality characterization of reservoirs in the Black Warrior basin is necessary to utilize advanced technology to recover additional oil and to avoid premature abandonment of fields. This report documents controls on the distribution and producibility of oil from heterogeneous Carboniferous reservoirs in the Black Warrior basin of Alabama. The first part of the report summarizes the structural and depositional evolution of the Black Warrior basin and establishes the geochemical characteristics of hydrocarbon source rocks and oil in the basin. This second part characterizes facies heterogeneity and petrologic and petrophysical properties of Carter and Millerella sandstone reservoirs. This is followed by a summary of oil production in the Black Warrior basin and an evaluation of seven improved-recovery projects in Alabama. In the final part, controls on the producibility of oil from sandstone reservoirs are discussed in terms of a scale-dependent heterogeneity classification.

  14. Reservoir heterogeneity in carboniferous sandstone of the Black Warrior basin. Final report

    SciTech Connect (OSTI)

    Kugler, R.L.; Pashin, J.C.; Carroll, R.E.; Irvin, G.D.; Moore, H.E.

    1994-06-01T23:59:59.000Z

    Although oil production in the Black Warrior basin of Alabama is declining, additional oil may be produced through improved recovery strategies, such as waterflooding, chemical injection, strategic well placement, and infill drilling. High-quality characterization of reservoirs in the Black Warrior basin is necessary to utilize advanced technology to recover additional oil and to avoid premature abandonment of fields. This report documents controls on the distribution and producibility of oil from heterogeneous Carboniferous reservoirs in the Black Warrior basin of Alabama. The first part of the report summarizes the structural and depositional evolution of the Black Warrior basin and establishes the geochemical characteristics of hydrocarbon source rocks and oil in the basin. This second part characterizes facies heterogeneity and petrologic and petrophysical properties of Carter and Millerella sandstone reservoirs. This is followed by a summary of oil production in the Black Warrior basin and an evaluation of seven improved-recovery projects in Alabama. In the final part, controls on the producibility of oil from sandstone reservoirs are discussed in terms of a scale-dependent heterogeneity classification.

  15. Petrology and hydrocarbon reservoir potential of subsurface Pottsville (Pennsylvanian) sandstones, Black Warrior basin, Mississippi

    SciTech Connect (OSTI)

    Beard, R.H.; Maylan, M.A.

    1987-09-01T23:59:59.000Z

    The Black Warrior basin of Mississippi and Alabama is a Paleozoic foreland basin developed between the North American craton and the Appalachian and Ouachita orogenic belts. The basin fill consists of a middle Mississippian to Lower Pennsylvanian clastic wedge, transitional in character, between Appalachian molasse and Ouachita flysch. Pottsville (Pennsylvanian) sandstones, shales, coals, and thin conglomerates make up the greater part of the wedge, thickening to 11,000 ft in northeast Mississippi. Although the outcropping and near-surface Pottsville is economically importance as a source of coal in Alabama, only minor amounts of gas have been derived from the subsurface Pottsville of Mississippi (Clay and Monroe Counties). Production from the Black Warrior basin, mostly gas, is chiefly from Chesterian (Mississippian) sands and limestones in the shallower part of the basin, principally in Monroe County. Cores of Pottsville sandstones from four wells in the deeper part of the Black Warrior basin (Calhoun and Choctaw Counties) have been examined to determine their petrography, diagenetic history, and reservoir quality. This part of the basin is relatively unexplored, and the primary objective of the study was to determine if suitable hydrocarbon reservoirs are present.

  16. Mixed fluvial systems of Messak Sandstone, a deposit of Nubian lithofacies, southwestern Libya

    SciTech Connect (OSTI)

    Lorenz, J.C.

    1987-05-01T23:59:59.000Z

    The Messak Sandstone is a coarse to pebbly, tabular cross-bedded, Lower Cretaceous deposit of the widespread Nubian lithofacies. It was deposited at the northern edge of the Murzuq basin in southwestern Libya. Although the sedimentary record is predominantly one of braided fluvial systems, a common subfacies within the formation is interpreted to record the passage of straight-crested sand waves across laterally migrating point bars in sinuous rivers, similar to the pattern documented by Singh and Kumar on the modern Ganga and Yamuna Rivers. Because the sand waves were larger on the lower parts of the point bars, lateral migration created diagnostic thinning-upward, unidirectional cosets of tabular cross-beds as well as fining-upward, grain-size trends. Common, thick, interbedded claystones, deposited in associated paludal and lacustrine environments, and high variance in cross-bed dispersion patterns also suggest the local presence of sinuous fluvial systems within the overall braided regime. The Messak Sandstone contains some of the features that led Harms et al to propose an unconventional low-sinuosity fluvial environment for the Nubian lithofacies in Egypt, and the continuously high water levels of this model may explain channel-scale clay drapes and overturned cross-beds in the Messak. However, most of the Messak characteristics are incompatible with the low-sinuosity model, suggesting instead that the fluvial channels in the Murzuq basin alternated between braided and high-sinuosity patterns.

  17. Characterization and fluid flow simulation of naturally fractured Frontier sandstone, Green River Basin, Wyoming

    SciTech Connect (OSTI)

    Harstad, H. [New Mexico Tech, Socorro, NM (United States); Teufel, L.W.; Lorenz, J.C.; Brown, S.R. [Sandia National Labs., Albuquerque, NM (United States). Geomechanics Dept.

    1996-08-01T23:59:59.000Z

    Significant gas reserves are present in low-permeability sandstones of the Frontier Formation in the greater Green River Basin, Wyoming. Successful exploitation of these reservoirs requires an understanding of the characteristics and fluid-flow response of the regional natural fracture system that controls reservoir productivity. Fracture characteristics were obtained from outcrop studies of Frontier sandstones at locations in the basin. The fracture data were combined with matrix permeability data to compute an anisotropic horizontal permeability tensor (magnitude and direction) corresponding to an equivalent reservoir system in the subsurface using a computational model developed by Oda (1985). This analysis shows that the maximum and minimum horizontal permeability and flow capacity are controlled by fracture intensity and decrease with increasing bed thickness. However, storage capacity is controlled by matrix porosity and increases linearly with increasing bed thickness. The relationship between bed thickness and the calculated fluid-flow properties was used in a reservoir simulation study of vertical, hydraulically-fractured and horizontal wells and horizontal wells of different lengths in analogous naturally fractured gas reservoirs. The simulation results show that flow capacity dominates early time production, while storage capacity dominates pressure support over time for vertical wells. For horizontal wells drilled perpendicular to the maximum permeability direction a high target production rate can be maintained over a longer time and have higher cumulative production than vertical wells. Longer horizontal wells are required for the same cumulative production with decreasing bed thickness.

  18. Dakota sandstone and associated rocks adjacent to San Juan sag near Gunnison, Colorado

    SciTech Connect (OSTI)

    Bartleson, B. (Western State College of Colorado, Gunnison (USA))

    1989-09-01T23:59:59.000Z

    The stratigraphy and depositional systems of the Dakota Sandstone and associated rocks were studied in outcrop at the northeastern margin of the San Juan volcanic field in southern Gunnison and northern Saguache Counties, Colorado. This study fills in a major gap in regional Mesozoic stratigraphy and provides a last view of these rocks before they are concealed to the south by the volcanic cover of the San Juan sag, a frontier hydrocarbon basin. Locally, the Burro Canyon Formation is interpreted as a dominantly meandering fluvial system formed under oxidizing conditions similar to the underlying Morrison Formation. The Burro Canyon Formation pinches out along a roughly east-west line just south of US Highway 50 and is missing for about 15 mi south to the edge of the continuous volcanics. The Dakota Sandstone consists of a lower, low-sinuosity fluvial system abruptly overlain by an upper, mostly nearshore marine sequence which grades upward into the offshore Mancos Shale. While the total Dakota thickness is relatively constant, the fluvial system thickens markedly to the south where marine rocks are quite thin. To the north, marine rocks thicken irregularly and fluvial rocks are thin. In this area, the Mancos Shale can be readily subdivided into Graneros, Greenhorn, Carlile, Juana Lopez, and upper Niobrara formations, although the Fort Hays limestone is locally missing. The upper Mancos Shale and Mesaverde Group are also missing, presumably due to late Eocene prevolcanic erosion.

  19. Role of halite in the evolution of sandstone porosity, upper Jurassic Norphlet Formation, Mississippi salt basin

    SciTech Connect (OSTI)

    Schenk, C.J.; Schmoker, J.W. (Geological Survey, Denver, CO (United States))

    1993-09-01T23:59:59.000Z

    Analysis of petrographic point-count data, cement paragenesis, and scanning electron microscopy examination of pores has shown that poikilitic halite cement in sandstones of the Norphlet Formation in a core from Wayne County, Mississippi, formed following cementation by quartz, feldspar, dolomite, and anhydrite. Intergranular volume ranges from 26 to 42%, averaging 35%, indicating that an average of 10% of the rock volume was lost to compaction, and a further 10-15%, was lost to cementation prior to halite cementation, assuming a depositional porosity of about 45%. Most halite occurs as intergranular cement, but some halite is present as intragranular cement within framework feldspars and lithic fragments. Halite is easily removed from a sandstone during coring, slabbing, and thin-section preparation techniques that do not use oil-based fluids and muds, so the amount of porosity in these samples that is a product of artificial removal of halite is unknown. Although the present and former distribution of halite is poorly known, natural halite dissolution could have produced about 20% secondary porosity in the Norphlet Formation at depth in this part of the Mississippi Salt basin.

  20. Impact of monsoons, temperature, and CO2 on the rainfall and ecosystems of Mt. Kenya during the Common Era

    E-Print Network [OSTI]

    Vuille, Mathias

    Impact of monsoons, temperature, and CO2 on the rainfall and ecosystems of Mt. Kenya during Leaf waxes Glacial and early Holocene-age sediments from lakes on Mt. Kenya have documented strong and atmospheric CO2 concentra- tions. However, little is known about climate and ecosystem variations on Mt. Kenya

  1. MT3D: a 3 dimensional magnetotelluric modeling program (user's guide and documentation for Rev. 1)

    SciTech Connect (OSTI)

    Nutter, C.; Wannamaker, P.E.

    1980-11-01T23:59:59.000Z

    MT3D.REV1 is a non-interactive computer program written in FORTRAN to do 3-dimensional magnetotelluric modeling. A 3-D volume integral equation has been adapted to simulate the MT response of a 3D body in the earth. An integro-difference scheme has been incorporated to increase the accuracy. This is a user's guide for MT3D.REV1 on the University of Utah Research Institute's (UURI) PRIME 400 computer operating under PRIMOS IV, Rev. 17.

  2. LANDFORMS GENERATED BY WIND EROSION OF NAVAJO SANDSTONE OUTCROPS AT THE WAVE (COLORADO PLATEAU, UTAH / ARIZONA BORDER)

    E-Print Network [OSTI]

    Nebraska-Lincoln, University of

    LANDFORMS GENERATED BY WIND EROSION OF NAVAJO SANDSTONE OUTCROPS AT THE WAVE (COLORADO PLATEAU that are undercut by wind abrasion. In the photos above and to the left, note the microbially darkened rock surface Bedforms: Direct Evidence for Eolian Abrasion Arizona Utah wind wind wind wind wind wind The Wave "The Wave

  3. Disseminated `jigsaw piece' dolomite in Upper Jurassic shelf sandstones, Central North Sea: an example of cement growth

    E-Print Network [OSTI]

    Haszeldine, Stuart

    : an example of cement growth during bioturbation? JAMES P. HENDRY*1 , MARK WILKINSON , ANTHONY E. FALLICKà crystals and consequent cementation of the grain framework. Continued exchange of Mg2+ and Ca2 on calcite cementation in marine sandstones in recent years has greatly improved our understanding

  4. Effect of Temperature and Solution Composition on the Permeability of St. Peters Sandstone: Role of Iron (III)

    SciTech Connect (OSTI)

    Potter, J.M.; Nur, A.; Dibble, W.E. Jr.

    1980-12-16T23:59:59.000Z

    The purpose of this study was to systematically investigate effects of temperature and fluid composition on the permeability of quartz sandstones. We have concentrated our initial efforts on the time and flow dependence at 2 elevated temperatures (100°C, 200°C).

  5. Characterizing Damage Evolution and Yield in Sandstone Under Triaxial Loading as a Function of Various Effective Pressure

    E-Print Network [OSTI]

    Choens II, Robert C.

    2011-02-22T23:59:59.000Z

    , and validate prevailing models for failure across the brittle-ductile transition. Water saturated cylinders of Berea sandstone (18 percent porosity, 185 mu m grain size) were deformed at an axial strain rate of 4x10^-5 s^-1 to 8x10^-5 s^-1 pore pressures of 10...

  6. CO2 percolation experiment through chlorite/zeolite-rich sandstone (Pretty Hill Formation Otway BasinAustralia)

    E-Print Network [OSTI]

    Demouchy, Sylvie

    CO2 percolation experiment through chlorite/zeolite-rich sandstone (Pretty Hill Formation ­ Otway November 2011 Editor: D.B. Dingwell Keywords: CO2 storage Clay precipitation Carbon Permeability Reactive transport Underground CO2 sequestration is highly recommended as an effective means of significantly

  7. Geology and recognition criteria for sandstone uranium deposits in mixed fluvial-shallow marine sedimentary sequences, South Texas. Final report

    SciTech Connect (OSTI)

    Adams, S.S.; Smith, R.B.

    1981-01-01T23:59:59.000Z

    Uranium deposits in the South Texas Uranium Region are classical roll-type deposits that formed at the margin of tongues of altered sandstone by the encroachment of oxidizing, uraniferous solutions into reduced aquifers containing pyrite and, in a few cases, carbonaceous plant material. Many of the uranium deposits in South Texas are dissimilar from the roll fronts of the Wyoming basins. The host sands for many of the deposits contain essentially no carbonaceous plant material, only abundant disseminated pyrite. Many of the deposits do not occur at the margin of altered (ferric oxide-bearing) sandstone tongues but rather occur entirely within reduced, pyurite-bearing sandstone. The abundance of pyrite within the sands probably reflects the introduction of H/sub 2/S up along faults from hydrocarbon accumulations at depth. Such introductions before ore formation prepared the sands for roll-front development, whereas post-ore introductions produced re-reduction of portions of the altered tongue, leaving the deposit suspended in reduced sandstone. Evidence from three deposits suggests that ore formation was not accompanied by the introduction of significant amounts of H/sub 2/S.

  8. Frio sandstone reservoirs in the deep subsurface along the Texas Gulf Coast: their potential for production of geopressured geothermal energy

    SciTech Connect (OSTI)

    Bebout, D.G.; Loucks, R.G.; Gregory, A.R.

    1983-01-01T23:59:59.000Z

    Detailed geological, geophysical, and engineering studies conducted on the Frio Formation have delineated a geothermal test well site in the Austin Bayou Prospect which extends over an area of 60 square miles. A total of 800 to 900 feet of sandstone will occur between the depths of 13,500 and 16,500 feet. At leat 30 percent of the sand will have core permeabilities of 20 to 60 millidarcys. Temperature at the top of the sandstone section will be 300/sup 0/F. Water, produced at a rate of 20,000 to 40,000 barrels per day, will probably have to be disposed of by injection into shallower sandstone reservoirs. More than 10 billion barrels of water are in place in these sandstone reservoirs of the Austin Bayou Prospect; there should be approximately 400 billion cubic feet of methane in solution in this water. Only 10 percent of the water and methane (1 billion barrels of water and 40 billion cubic feet of methane) will be produced without reinjection of the waste water into the producing formation. Reservoir simulation studies indicate that 90 percent of the methane can be produced with reinjection. 106 figures.

  9. High-resolution stratigraphic and structural characterization of the fault-partitioned Hickory Sandstone aquifer system, Mason County, central Texas

    E-Print Network [OSTI]

    Wilson, Jason Steven

    2001-01-01T23:59:59.000Z

    The Hickory Sandstone is an important aquifer in central Texas and is partitioned by faults that impede cross-fault fluid flow. This study provides a detailed stratigraphic and structural model in the vicinity of a normal, oblique-slip fault...

  10. Dynamic Reservoir Characterization for High Resolution Connectivity Mapping and Conformance Control, Morrow Sandstone Reservoir, Postle Field, Oklahoma

    E-Print Network [OSTI]

    Control, Morrow Sandstone Reservoir, Postle Field, Oklahoma "You've got to know when to hold `em, know units and their connectivity within a valley fill environment in Postle Field, Texas County, Oklahoma. Dynamic Reservoir Characterization at Postle Field Postle Field, Anadarko Basin, Oklahoma, produces from

  11. Hysteretic nonlinear elasticity of Berea sandstone at low-vibrational strain revealed by dynamic acousto-elastic testing

    E-Print Network [OSTI]

    in the Earth. In the laboratory, the disturbance that induces elastic changes is a low-frequency wave sandstone as a function of the applied low-frequency (LF) axial strain (varied from 10À7 to 10À5 the wave speed is measured as a function of the applied static load. Dynamic acousto-elasticity uses low-frequency

  12. Small to large-scale diagenetic variation in Norphlet sandstone, onshore and offshore Mississippi, Alabama, and Florida

    SciTech Connect (OSTI)

    Kugler, R.L.

    1989-03-01T23:59:59.000Z

    The detrital composition of Norphlet sandstone is relatively uniform on a regional scale, consisting of quartz, potassium feldspar, albite, and rock fragments comprised of these minerals. However, the diagenetic character of the sandstones is variable on a scale ranging from the individual laminations to single hydrocarbon-producing fields to regions encompassing several fields or offshore blocks. Small-scale variation results primarily from textural differences related to depositional processes in eolian and shallow marine systems. Degree of feldspar alteration and types of authigenic clay and carbonate minerals vary on a regional scale. Illite, dolomite, ferroan dolomite, and ferroan magnesite (breunnerite) are common in onshore wells in Alabama, whereas magnesium-rich chlorite and calcite are present in offshore Alabama and Florida. However, diagenetic character is more variable on a fieldwide scale than previously recognized. In Hatter's Pond field, Mobile County, Alabama, breunnerite, which has not been described previously in these sandstones, is the dominant cement in some wells but is absent others. Although illite is the most common authigenic clay throughout the field, chlorite is the most abundant clay in some wells. Because of uniformity of detrital composition, diagenetic variations cannot be related to differences in provenance, particularly on the scale of a single field. Factors that must account for variations in diagenesis include (1) differences in burial history relative to thermal sulfate reduction; (2) variation in fluid flow relative to subbasins, structural highs, fault systems, depositional texture, and early diagenetic character of the sandstones; and (3) variation in composition of underlying Louann evaporites.

  13. Interactive Translucent Volume Rendering and Procedural Modeling Joe Kniss Simon Premoze Charles Hansen David Ebert

    E-Print Network [OSTI]

    Kniss, Joe Michael

    Interactive Translucent Volume Rendering and Procedural Modeling Joe Kniss Simon Premoze¶ Charles School of Electrical and Computer Engineering Purdue University Figure 1: A translucent fish rendered. Abstract Direct volume rendering is a commonly used technique in visual- ization applications. Many

  14. The effects of Chern-Simons gravity on bodies orbiting the Earth

    E-Print Network [OSTI]

    Tristan L. Smith; Adrienne L. Erickcek; Robert R. Caldwell; Marc Kamionkowski

    2008-01-08T23:59:59.000Z

    One of the possible low-energy consequences of string theory is the addition of a Chern-Simons term to the standard Einstein-Hilbert action of general relativity. It can be argued that the quintessence field should couple to this Chern-Simons term, and if so, it drives in the linearized theory a parity-violating interaction between the gravito-electric and gravitomagnetic fields. In this paper, the linearized spacetime for Chern-Simons gravity around a massive spinning body is found to include new modifications to the gravitomagnetic field that have not appeared in previous work. The orbits of test bodies and the precession of gyroscopes in this spacetime are calculated, leading to new constraints on the Chern-Simons parameter space due to current satellite experiments.

  15. Cancer Systems Biology Dana Faratian, James L. Bown, V. Anne Smith, Simon P. Langdon,

    E-Print Network [OSTI]

    Smith, V Anne

    245 Chapter 12 Cancer Systems Biology Dana Faratian, James L. Bown, V. Anne Smith, Simon P. Langdon+Business Media, LLC 2010 #12;246 Faratian et al. While cancer can arise from any cell in the body, the commonest

  16. Emergent Semantics Through Interaction in Image Databases Simone Santini, Amarnath Gupta and Ramesh Jain

    E-Print Network [OSTI]

    Gupta, Amarnath

    Emergent Semantics Through Interaction in Image Databases Simone Santini, Amarnath Gupta and Ramesh Laboratory, University of California, San Diego, {ssantini,jain}@ece.ucsd.edu. Amarnath Gupta is with the San

  17. Multiple-scattering in radar systems: A review Alessandro Battaglia a,b,, Simone Tanelli c

    E-Print Network [OSTI]

    Hogan, Robin

    Review Multiple-scattering in radar systems: A review Alessandro Battaglia a,b,Ã, Simone Tanelli c. Tel.: +44 116 2709859. E-mail address: a.battaglia@le.ac.uk (A. Battaglia). Journal of Quantitative Spectroscopy & Radiative Transfer ] (

  18. Adiabatic Pumping of Chern-Simons Axion Coupling

    E-Print Network [OSTI]

    Maryam Taherinejad; David Vanderbilt

    2014-11-06T23:59:59.000Z

    We study the adiabatic pumping of the Chern-Simons axion (CSA) coupling along a parametric loop characterized by a non-zero second Chern number $C^{(2)}$ from the viewpoint of the hybrid Wannier representation, in which the Wannier charge centers (WCCs) are visualized as sheets defined over a projected 2D Brillouin zone. We derive a new formula for the CSA coupling, expressing it as an integral involving Berry curvatures and potentials defined on the WCC sheets. We show that a loop characterized by a non-zero $C^{(2)}$ requires a series of sheet-touching events at which $2\\pi$ quanta of Berry curvature are passed from sheet to sheet, in such a way that $e^2/h$ units of CSA coupling are pumped by a lattice vector by the end of the cycle. We illustrate these behaviors via explicit calculations on a model tight-binding Hamiltonian and discuss their implications.

  19. L mt i tng nghin cu, qu v c nhng quyn li sau

    E-Print Network [OSTI]

    Church, George M.

    . Quyt nh này s không nh hng ti dch v chm sóc mà quý v nhn c ti bnh vin. c nhn mt bn sao ca mu chp thun

  20. TIME-VARIABLEFILTERING OF MtTLTI[CHANNELSIGNALS USING MULTIPLE WINDOWS COHERENCEAND THE WEYL TRANSFORM

    E-Print Network [OSTI]

    Sandsten, Maria

    TIME-VARIABLEFILTERING OF MtTLTI[CHANNELSIGNALS USING MULTIPLE WINDOWS COHERENCEAND THE WEYL between all channel pairs. Time-frequency coherence functions are estimated using the multiple window

  1. Methane Hydrate Dissociation by Depressurization in a Mount Elbert Sandstone Sample: Experimental Observations and Numerical Simulations

    SciTech Connect (OSTI)

    Kneafsey, T.; Moridis, G.J.

    2011-01-15T23:59:59.000Z

    A preserved sample of hydrate-bearing sandstone from the Mount Elbert Test Well was dissociated by depressurization while monitoring the internal temperature of the sample in two locations and the density changes at high spatial resolution using x-ray CT scanning. The sample contained two distinct regions having different porosity and grain size distributions. The hydrate dissociation occurred initially throughout the sample as a result of depressing the pressure below the stability pressure. This initial stage reduced the temperature to the equilibrium point, which was maintained above the ice point. After that, dissociation occurred from the outside in as a result of heat transfer from the controlled temperature bath surrounding the pressure vessel. Numerical modeling of the test using TOUGH+HYDRATE yielded a gas production curve that closely matches the experimentally measured curve.

  2. Geology and log responses of the Rose Run sandstone in Randolph Township, Portage County, Ohio

    SciTech Connect (OSTI)

    Moyer, C.C. [Lomak Petroleum, Hartville, OH (United States)

    1996-09-01T23:59:59.000Z

    Approximately 75 wells have penetrated the Cambrian Rose Run sandstone in Randolph Township, Portage County, Ohio, about half of which should produce well beyond economic payout. Only one deep test (to the Rose Run or deeper) was drilled in this Township prior to 1990. Two separate and distinct Rose Run producing fields exist in the Township; the western field is predominately gas-productive and the east is predominantly oil-productive. Both fields are on the north side of the Akron-Suffield Fault Zone, which is part of a regional cross-strike structural discontinuity extending from the Pittsburgh, Pennsylvania area northwestward to Lake Erie. This feature exhibits control over Berea, Oriskany, Newburg, Clinton, and Rose Run production.

  3. Random mtDNA mutations modulate proliferation capacity in mouse embryonic fibroblasts

    SciTech Connect (OSTI)

    Kukat, Alexandra [Division of Metabolic Diseases, Department of Laboratory Medicine, Karolinska Institute, S-17171 Stockholm (Sweden) [Division of Metabolic Diseases, Department of Laboratory Medicine, Karolinska Institute, S-17171 Stockholm (Sweden); Cologne Excellence Cluster on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne University Clinic, D-50674 Cologne (Germany); Edgar, Daniel [Division of Metabolic Diseases, Department of Laboratory Medicine, Karolinska Institute, S-17171 Stockholm (Sweden)] [Division of Metabolic Diseases, Department of Laboratory Medicine, Karolinska Institute, S-17171 Stockholm (Sweden); Bratic, Ivana [Division of Metabolic Diseases, Department of Laboratory Medicine, Karolinska Institute, S-17171 Stockholm (Sweden) [Division of Metabolic Diseases, Department of Laboratory Medicine, Karolinska Institute, S-17171 Stockholm (Sweden); Cologne Excellence Cluster on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne University Clinic, D-50674 Cologne (Germany); Maiti, Priyanka [Cologne Excellence Cluster on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne University Clinic, D-50674 Cologne (Germany)] [Cologne Excellence Cluster on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne University Clinic, D-50674 Cologne (Germany); Trifunovic, Aleksandra, E-mail: aleksandra.trifunovic@ki.se [Division of Metabolic Diseases, Department of Laboratory Medicine, Karolinska Institute, S-17171 Stockholm (Sweden) [Division of Metabolic Diseases, Department of Laboratory Medicine, Karolinska Institute, S-17171 Stockholm (Sweden); Cologne Excellence Cluster on Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Cologne University Clinic, D-50674 Cologne (Germany)

    2011-06-10T23:59:59.000Z

    Highlights: {yields} Increased mtDNA mutations in MEFs lead to high level of spontaneous immortalization. {yields} This process is independent of endogenous ROS production. {yields} Aerobic glycolysis significantly contributes to spontaneous immortalization of MEFs. -- Abstract: An increase in mtDNA mutation load leads to a loss of critical cells in different tissues thereby contributing to the physiological process of organismal ageing. Additionally, the accumulation of senescent cells that display changes in metabolic function might act in an active way to further disrupt the normal tissue function. We believe that this could be the important link missing in our understanding of the molecular mechanisms of premature ageing in the mtDNA mutator mice. We tested proliferation capacity of mtDNA mutator cells in vitro. When cultured in physiological levels of oxygen (3%) their proliferation capacity is somewhat lower than wild-type cells. Surprisingly, in conditions of increased oxidative stress (20% O{sub 2}) mtDNA mutator mouse embryonic fibroblasts exhibit continuous proliferation due to spontaneous immortalization, whereas the same conditions promote senescence in wild-type cells. We believe that an increase in aerobic glycolysis observed in mtDNA mutator mice is a major mechanism behind this process. We propose that glycolysis promotes proliferation and allows a fast turnover of metabolites, but also leads to energy crisis due to lower ATP production rate. This could lead to compromised replication and/or repair and therefore, in rare cases, might lead to mutations in tumor suppressor genes and spontaneous immortalization.

  4. Stevens and earlier miocene turbidite sandstones, southern San Joaquin Valley, California

    SciTech Connect (OSTI)

    Webb, G.W.

    1981-03-01T23:59:59.000Z

    A thick marine turbidite succession, dominantly coarse sandstone, underlies the southern part of the San Joaquin Valley. Sands are pebbly to fine grained, commonly poorly sorted, quartzose to arkosic, and are interbedded with dark shales bearing deep-water foraminifers. Graded bedding is common and, with the depths of 2000 to 6000 ft (610 to 1830 m) implied by the fauna, is taken to indicate a turbidity-current origin for most of the sands. The upper, middle, and lower Miocene turbidite section was revealed by extensive coring at Paloma, and is similar to the more widespread and oil and gas productive upper Miocene Stevens sandstone. The central-basin Stevens was deposited as channel sands on deep-sea fans derived from several discrete troughs or canyons on the eastern and southeastern margin of the basin prior to their burial by prograding Santa Margarita sand. Sand channels and lobes in the Bakersfield arch area were controlled locally by compaction structures. The rising Paloma anticline deflected Stevens sands for a time and the very last sands were guided also by incipient folds on the outer Bakersfield arch. Coarse Stevens conglomerates and sands shed from the emergent Temblor Range were deflected by the Buena Vista Hills, Elk Hills, and other anticlinal shoals and were deposited in intervening gaps as thick oil-productive channel sands. They merge with sands from the east side in flowing axially into the distal northwestern basin. Facies recognized in the subsurface include a meander-channel facies developed in the prograded muddy slope area upstream from the massive braided-sand facies.

  5. SIMON FRASER The Applied Research in Ichnology and Sedimentology (ARISE) Group (www.sfu.ca/arise) in the Department of

    E-Print Network [OSTI]

    Dashtgard, Shahin

    SIMON FRASER UNIVERSITY The Applied Research in Ichnology and Sedimentology (ARISE) Group (www at conferences and consortium workshops. Preferred applicants should have strong sedimentological

  6. Geological and petrophysical characterization of the Ferron Sandstone for 3-D simulation of a fluvial-deltaic reservoir. Deliverable 2.5.4, Ferron Sandstone lithologic strip logs, Emergy & Sevier Counties, Utah: Volume I

    SciTech Connect (OSTI)

    Allison, M.L.

    1995-12-08T23:59:59.000Z

    Strip logs for 491 wells were produced from a digital subsurface database of lithologic descriptions of the Ferron Sandstone Member of the Mancos Shale. This subsurface database covers wells from the parts of Emery and Sevier Counties in central Utah that occur between Ferron Creek on the north and Last Chance Creek on the south. The lithologic descriptions were imported into a logging software application designed for the display of stratigraphic data. Strip logs were produced at a scale of one inch equals 20 feet. The strip logs were created as part of a study by the Utah Geological Survey to develop a comprehensive, interdisciplinary, and qualitative characterization of a fluvial-deltaic reservoir using the Ferron Sandstone as a surface analogue. The study was funded by the U.S. Department of Energy (DOE) under the Geoscience/Engineering Reservoir Characterization Program.

  7. Journal of the Geological Society, London, Vol. 154, 1997, pp. 747751, 2 figs, 1 table. Printed in Great Britain Discussion on aluminium loss during sandstone diagenesis

    E-Print Network [OSTI]

    Haszeldine, Stuart

    Journal of the Geological Society, London, Vol. 154, 1997, pp. 747­751, 2 figs, 1 table. Printed in Great Britain Discussion on aluminium loss during sandstone diagenesis Journal, Vol. 153, 1996, pp. 657

  8. Action Principles for Transgression and Chern-Simons AdS Gravities

    E-Print Network [OSTI]

    Pablo Mora

    2014-08-06T23:59:59.000Z

    Chern-Simons gravities are theories with a lagrangian given by a Chern-Simons form constructed from a space-time gauge group. In previous investigations we showed that, for some special field configurations that are solutions of the field equations, the extension from Chern-Simons to Transgression forms as lagrangians, motivated by gauge invariance, automatically yields the boundary terms required to regularize the theory, giving finite conserved charges and black hole thermodynamics. Further work by other researchers showed that one of the action functionals considered in the above mentioned work yields a well defined action principle in the metric (zero torsion) case and for asymptotically Anti de Sitter (AdS) space-times. In the present work we consider several action functionals for Chern-Simons AdS gravity constructed from Transgression forms, and show the action principles to be well defined and the Noether charges and Euclidean action to be finite for field configurations satisfying only that the gauge field curvature (field strength) for the AdS gauge group is asymptotically finite. For that purpose we consider an asymptotic expansion of the vielbein and spin connection that may be regarded as a perturbation of an AdS space-time, but allowing a non zero torsion. Our results are of potential interest for Lovelock gravity theories, as it has been shown that the boundary terms dictated by the transgressions for Chern-Simons gravities are also suitable to regularize Lovelock theories.

  9. Optical Properties Chern-Simons (3+1)D $?$-systems

    E-Print Network [OSTI]

    Luis Huerta

    2014-12-17T23:59:59.000Z

    Chern-Simons (CS) $\\theta$-systems are described by a $\\theta \\int F\\wedge F$ term in the action ($\\theta$ is an adimensional parameter), which does not change field equations in the bulk, but affects the system behaviour when it is bounded. When two of those $\\theta$-systems, each one characterized by a different value of $\\theta$ (even zero), share a common boundary, surface effects are then induced by a CS $\\theta$ term. Here, we study the consequences of the above in the propagation of electromagnetic radiation in $\\theta$-systems. In a previous paper, electromagnetic radiation properties traversing a $\\theta$-vacuum were analyzed where a number of interesting features arise related to polarization and energy distribution. Now, we investigate how electric and magnetic properties of the $\\theta$-system affect the optical response. Apart from the well-known Kerr polarization rotation found for the particular case of topological insulators, we examine in detail the issue and the results could be applied in other contexts where $\\theta$-term accounts for the system dynamics. In particular, we find two different Brewster angles, for $s$ and $p$ polarization of reflected radiation, respectively, with peculiar features derived from the $\\theta$ term influence. Possible applications of these results are discussed.

  10. Origin of upper Bell Canyon Reservoir Sandstones (Guadalupian), El Mar and Paduca Fields, Southeast New Mexico and West Texas 

    E-Print Network [OSTI]

    Weinmeister, Marcus Paul

    1978-01-01T23:59:59.000Z

    with organic-rich shales only 1/8 to 1 in. thick. Within non-producing sections, lithology is dominated by interlaminated siltstones and shales which are commonly bioturbated. The distribution of sandstones is in channel-like trends per- pendicular...-south cross sections, Delaware Basin to the Northwest Shelf. Compiled by R. R. Berg from Meissner (1972). Lithofacies and isopach map of Artesia and Delaware Mountain Groups. Stratigraphic model for basinal deposition of carbonate and shale versus...

  11. Environment of deposition and reservoir characteristics of Lower Pennsylvanian Morrowan sandstones, South Empire field area, Eddy County, New Mexico 

    E-Print Network [OSTI]

    Lambert, Rebecca Bailey

    1986-01-01T23:59:59.000Z

    as seas transgressed across the area (Galley, 1958). Multiple episodes of marine transgression and regression during the Early Paleozoic resulted in a rapid facies change in both a verti- cal and lateral direction. Sandstones and shales are commonly... or trough that sloped to the southeast (Neyer, 1966). Subsidence along the axes of the trough occurring in conjunction with structural movement in the basement allowed for deposition of basinal sediments within the incipient Tobosa Basin in the mid...

  12. Stratal architecture and sedimentology of a portion of the Upper Cambrian Hickory Sandstone, central Texas, U.S.A. 

    E-Print Network [OSTI]

    Perez Teran, Isaac Antonio

    2009-05-15T23:59:59.000Z

    ?????????????????????...31 13 Representative photographs of bioturbation???????...???????39 14 Bedding diagram of HIC03 showing examples of bedset types A and D???..43 15 Bedding diagram of HIC07 showing examples of bedset types A and B?...?..45 16... (Barnes and Schofield 1964; Barnes and Bell 1977). The Upper Hickory is typically 15 to 30 meters thick (Barnes and Bell 1977) and is characterized by coarse grained, moderately well sorted, well rounded quartz sandstone with iron-oxide ooids and cement...

  13. Depostional systems, provenance, and sequence stratigraphy, Carter and [open quotes]Millerella[close quotes] sandstones of northeast Mississippi

    SciTech Connect (OSTI)

    Cleaves, A.W. II (Oklahoma State Univ., Stillwater, OK (United States))

    1993-09-01T23:59:59.000Z

    The subsurface [open quotes]Millerella[close quotes] and Carter sandstones (middle Chesterian) of the Black Warrior basin represent the highest units of the thick Muldon clastics deltaic facies tract. Lowstand marine conditions during Carter deposition allowed for southeastwardly progradation of five distinct deltaic lobe complexes onto the stable northern shelf of the basin. With each of these lobes, both an [open quotes]A[close quotes] (upper) and a [open quotes]B[close quotes] (lower) reservoir unit can be identified. The [open quotes]B[close quotes] sandstone produces from delta-front sheet sands, channel-mouth bars, and possible bar fingers of river-dominated deltas. The more prolific [open quotes]A[close quotes] subdivision contains reservoirs in upper delta-plain point bars, crevasse splays, and distributary channel fills. The most easterly of the lobes, preserved in the Bean's Ferry field of Itawamba County, comprises an amalgamated valley-fill facies that removed a maximum of 250 ft (76 m) of lower Bangor platform carbonates. In contrast, the [open quotes]Millerella[close quotes] sandstone is a series of unconnected pods that formed as marine-reworked sand bodies during a eustatic rise in sea level. The average detrital sand grain composition for four cores taken in Monroe County is 94.7% monocrystalline quartz, 2.9% polycrystalline quartz, 1.6% albite feldspar, 0.1% low-rank metamorphic rock fragments, 0.5 chert, and 0.2% muscovite. These data indicate that neither the Ozark uplift nor the Ouachita orogen could have acted as the principal source area for the Carter and [open quotes]Millerella[close quotes] sandstones. More likely, the sedimentary-igneous terrains along the northern margin of the Illinois basin served this function. A major eustatic lowstand brought this mineralogically mature sediment across the Illinois basin through incised valleys to the northern self of the Black Warrior basin.

  14. The effect of diagenesis on enhanced recovery methods in Frio reservoir sandstones of the middle Texas Gulf Coast

    E-Print Network [OSTI]

    West, Mark Alan

    1981-01-01T23:59:59.000Z

    . (Chairman of Committee) (Member) (H of Depa tment) (Member) ABSTRACT The Effect of Diagenesis on Enhancec Recovery Methods in Frio Reservoi- Sandstones of the Middle Texas Gulf Coast. (May, lg81) Hark Alan West, B. S. , Baylor University Chairman... of Advisory Committee: Dr. Thomas T. Tieh The Frio reservoir sanostcnes at Agua Dulce, Nine Mile Point, McCampbell Deep and Mesquite Bay fields provide an interesting study of how complex diagenetic histories affect reservoir quality. Bur''al depths...

  15. Depositional patterns and reservoir morphology of Guadalupian Cherry Canyon sandstones, Indian Draw Field, Eddy County, New Mexico

    E-Print Network [OSTI]

    Phillips, Sandra

    1981-01-01T23:59:59.000Z

    shown in Fig. 29 119 Isopach of final channel-fill showing the highly sinuous geometry of the thinly interbedded sandstones siltstones and shales. Contour interval 5 ft (1. 5 m). . 121 44 Diagrammatic cross section illustrating the size, shape... at depths ranging from. 3200 to 3350 ft (975 to 1020 m). These reservoir sand- stones occur interbedded with limestones, siltstones and thin shales, and were deposited approximately 10 mi (16 km) downdip from the Guadalupian reef front in the Delaware...

  16. Contrasting processes of deposition for the Eagleford "B" sandstone, Bryan, IDS, and Kurten fields, Brazos County, Texas 

    E-Print Network [OSTI]

    Golding, Robert Martin

    1990-01-01T23:59:59.000Z

    sectional view of Eagleford sand- ridge depositional model showing vertical and lateral facies relationships. Modified from Phillips (1987) and Gaynor and Swift (1988) 83 25 Plan view of Eagleford sand-ridge depo- sitional model showing lateral facies... distribution and rotation of shelf current flow across the ridge. From Phillips (1987) 84 26 Depositional model proposed by Turner and Conger (1981) for Kurten field sandstones. Figure shows prograding Harris Delta, river mouth by-passing, shelf turbidity...

  17. Environment of deposition and reservoir properties of Teapot sandstones (Upper Cretaceous), Well Draw field, Converse County, Wyoming

    E-Print Network [OSTI]

    Sullivan, John Joseph

    1982-01-01T23:59:59.000Z

    = monocrystalline quartz, F = feldspar, Rx = rock fragments including chert, micas, and polycrystalline quartz, Mx = maxtrix, and 0th = other minerals. c Sil = silica as grain overgrowths including minor chert, Cal = calcite including minor dolomite and siderite... fossils, and reservoir morphology. Three distinct sandstone facies produce oil and gas at Well Draw field. The main producing zone consists of thicker, channel turbidites. The lower two zones are thinly interbedded with shale and have limited reservoir...

  18. Environment of deposition and reservoir characteristics of Lower Pennsylvanian Morrowan sandstones, South Empire field area, Eddy County, New Mexico

    E-Print Network [OSTI]

    Lambert, Rebecca Bailey

    1986-01-01T23:59:59.000Z

    New Mexico. The Lower and Middle Morrow intervals in the South Empire field area consist of stacked, fluvial to deltaic sandstones that are interbedded with thin limestones. An understanding of the complex, interfingering relation- ships... of the Tobosa basin, the thinning of Ordovician sediments suggests the initiation of uplift on the Diablo Platform. A period of quiescence punctuated by episodes of regional uplift existed from the late Ordovician to the late Devonian-early Mississ- ippian...

  19. Depositional environment and hydrodynamic flow in Guadalupian Cherry Canyon sandstone, West Ford and West Geraldine fields, Delaware Basin, Texas 

    E-Print Network [OSTI]

    Linn, Anne Marie

    1985-01-01T23:59:59.000Z

    processes. The burial history of the sandstones includes compaction of sediments and development of quartz over growths, precipitation of clays and cements, decementation, a second precipitation of clays and cements, partial dissolution of cements...) noted that the Wheat field has a tilted oil/water contact implying that hydrodynamic flow is present. The influence of hydrodynamic flow on oil entrapment was determined from the analysis of subsurface pressur es derived from drill stem tests...

  20. PHYS 211 Supplement #5 -Hamilton's equations S5 -1 2001 by David Boal, Simon Fraser University. All rights reserved; further copying or resale is strictly prohibited.

    E-Print Network [OSTI]

    Boal, David

    PHYS 211 Supplement #5 - Hamilton's equations S5 - 1 © 2001 by David Boal, Simon Fraser University - Hamilton's equations S5 - 2 © 2001 by David Boal, Simon Fraser University. All rights reserved; further - Hamilton's equations S5 - 3 © 2001 by David Boal, Simon Fraser University. All rights reserved; further

  1. Diagenetic control on permeability baffles and barriers, Carter Sandstone, North Blowhorn Creek oil unit, Black Warrior basin, Alabama

    SciTech Connect (OSTI)

    Kugler, R.L. (Geological Survey of Alabama, Tuscaloosa (United States))

    1991-03-01T23:59:59.000Z

    Mississippian (Chesterian) Carter sandstone is the most productive oil reservoir in the Black Warrior basin of Alabama. In North Blowhorn Creek oil unit, very fine- to medium-grained quartzarenite and sublitharenite occur in an elongate, isolated northwest-southeast trending body, surrounded by shale. The sandstone was deposited in a beach-barrier environment. Most production is from ripple-laminated and horizontal- to low-angle-planar laminated shoreface and foreshore deposits in the central part of the reservoir body. Uneven distribution of diagenetic features creates permeability baffles and barriers at several scales within the reservoir, ranging from microscopic to macroscopic, and increases tortuosity of fluid flow. Early authigenic calcite and ferroan calcite occur only in shell lags deposited in channels within the reservoir body. These originally porous and permeable layers are completely cemented by calcite, ferroan calcite, and ferroan dolomite. Carbonate-cemented shell lags form discontinuous permeability barriers that may be laterally continuous between adjacent wells. Ferroan dolomite is the most abundant cement in Carter sandstone and occludes all pores near the margins of the reservoir body. The pore system within the high-quality portion of the reservoir consists of modified primary and secondary intergranular porosity and microporosity within patches of kaolinite. Porosity and permeability relationships are controlled by the distribution of quartz overgrowths, kaolinite, deformed mudstones fragments, intergranular pressure solution, and stylolite seams. The lateral extent of baffles and barriers created by these diagenetic features is related to depositional texture and ranges from micrometers to meters.

  2. Reservoir characterization of multiple-bar sandstones in the Mississippian Cypress Formation, Tamaroa Field, Perry County, Illinois

    SciTech Connect (OSTI)

    Grube, J.P. (Illinois State Geological Survey, Champaign (United States))

    1991-08-01T23:59:59.000Z

    Tamaroa field produces principally from lenticular sandstones in the upper part of the Chesterian Cypress Formation. These sandstone bodies, interpreted to be marine bars, are typically less than 10 ft thick, 0.25 to 0.5 mi wide,and less than 2 mi long. The bars are vertically stacked and trend northeast-southwest in an en echelon pattern. Spontaneous potential and gamma ray log character, as well as core data, show that shales ranging in thickness from 10 ft to less than 1 ft separate the sandstones. Hydrocarbons are produced from the clean parts of the bars that drape across three structural folds. Multiple structural closures and the stacking of shale-separated bars create discrete reservoir compartments in Tamaroa field. Understanding reservoir compartmentalization is a key factor in designing and infill drilling or waterflood program in a multiple-bar complex such as the one at Tamaroa field. Optimum recovery efficiency therefore can be achieved by using a detailed reservoir model.

  3. The Implementation of a FirstOrder Logic AGM Belief Revision System Simon Dixon and Wayne Wobcke

    E-Print Network [OSTI]

    Dixon, Simon

    The Implementation of a First­Order Logic AGM Belief Revision System Simon Dixon and Wayne Wobcke­mail: simon@cs.su.oz.au, wobcke@cs.su.oz.au Abstract Belief revision is increasingly being seen as central belief revision system. The system is based on classical first­ order logic, and for any finitely

  4. To: SIMON FRASER UNIVERSITY NON-DISCLOSURE AGREEMENT REQUEST Office of Research Services (Fax: 778-782-3477)

    E-Print Network [OSTI]

    To: SIMON FRASER UNIVERSITY NON-DISCLOSURE AGREEMENT REQUEST Office of Research Services (Fax: 778-782-3477) Party 1 to Agreement: Simon Fraser University funding (including student/post-docs funding sources) used in creating Information? Yes No. If yes

  5. Testing Chern-Simons modified gravity with orbiting superconductive gravity gradiometers --- The non-dynamical formulation

    E-Print Network [OSTI]

    Li-E Qiang; Peng Xu

    2015-02-16T23:59:59.000Z

    High precision Superconductivity Gravity Gradiometers (SGG) are powerful tools for relativistic experiments. In this paper, we work out the tidal signals in non-dynamical Chern-Simons modified gravity, which could be measured by orbiting SGGs around Earth. We find that, with proper orientations of multi-axes SGGs, the tidal signals from the Chern-Simons modification can be isolated in the combined data of different axes. Furthermore, for three-axes SGGs, such combined data is the trace of the total tidal matrix, which is invariant under the rotations of SGG axes and thus free from axis pointing errors. Following nearly circular orbits, the tests of the parity-violating Chern-Simons modification and the measurements of the gravitomagnetic sector in parity-conserving metric theories can be carried out independently in the same time. A first step analysis on noise sources is also included.

  6. Testing Chern-Simons modified gravity with orbiting superconductive gravity gradiometers --- The non-dynamical formulation

    E-Print Network [OSTI]

    Qiang, Li-E

    2015-01-01T23:59:59.000Z

    High precision Superconductivity Gravity Gradiometers (SGG) are powerful tools for relativistic experiments. In this paper, we work out the tidal signals in non-dynamical Chern-Simons modified gravity, which could be measured by orbiting SGGs around Earth. We find that, with proper orientations of multi-axes SGGs, the tidal signals from the Chern-Simons modification can be isolated in the combined data of different axes. Furthermore, for three-axes SGGs, such combined data is the trace of the total tidal matrix, which is invariant under the rotations of SGG axes and thus free from axis pointing errors. Following nearly circular orbits, the tests of the parity-violating Chern-Simons modification and the measurements of the gravitomagnetic sector in parity-conserving metric theories can be carried out independently in the same time. A first step analysis on noise sources is also included.

  7. Geologic reservoir characterization of Humphreys sandstone (Pennsylvanian), east Velma field, Oklahoma

    SciTech Connect (OSTI)

    McGowen, M.K.

    1988-02-01T23:59:59.000Z

    East Velma field is located in the Ardmore basin, Stephens County, Oklahoma, on the north flank of a truncated anticline with dips that range from 30/degrees/-60/degrees/. The discovery well of the Humphreys sand unit was drilled in April 1951 and an original oil in place of 32.7 million bbl was calculated. Primary depletion was by solution gas drive with gas reinjection and gravity drainage which was enhanced by the steep structural dip of the field. A waterflood that was initiated in 1983 and a proposed CO/sub 2/ miscible displacement program to further enhance field recovery prompted the need to develop a detailed geologic description of the reservoir. Core studies indicate that the Humphreys sandstone was deposited in a shallow marine, tidally dominated environment. Subfacies include sand-rich tidal flat and tidal channel deposits. The unit is primarily composed of very fine to fine-grained, moderately to well-sorted quartzarenites. Dominant sedimentary structures include bidirectional and unidirectional current ripples, cross-laminations, common slump structures, and zones abundant and scattered burrows.

  8. Using X-Ray Computed Tomography in Pore Structure Characterization for a Berea Sandstone: Resolution Effect

    SciTech Connect (OSTI)

    Peng, Sheng; Hu, Qinhong; Dultz, Stefan; Zhang, Ming

    2012-11-23T23:59:59.000Z

    X-raycomputedtomography (XCT) is a powerful tool for detecting the micro-scale porestructure and has been applied to many natural and synthetic porous media. However, due to the resolution limitations, either non-representative view of the sample or inaccurate results can be produced from the XCT image processing. In this paper, two XCT (micro-CT and CT with synchrotron radiation) with different resolutions of 12.7 ?m and 0.35 ?m, as well as mercury intrusion porosimetry (MIP) with a minimum detection limit of 3 nm, were used for Berea sandstone to investigate the effect of detecting resolution on the porestructure. Several key porestructure parameters, including porosity, pore size distribution, pore connectivity, surface area, hydraulic radius, and aspect ratio were analyzed in a manner of quantitative comparison between different resolutions of XCT and MIP. The low resolution XCT can capture the large-pore porosity, while overestimates the pore size and pore connectivity. The high resolution XCT is more accurate in describing the pore shape, porosity, pore size; however, it is not representative since narrower detecting pore size range and small volume represented. A representative element volume related to large-pore porosity and probably large-pore connectivity with diameter and height of 2.8 mm is obtained through scale effect analysis. Therefore, selecting an appropriate resolution should be a compromise between the pore size and the representative element volume for the specific property or process of interest.

  9. Evaluation of the Berea sandstone formation in eastern Pike County, Kentucky

    SciTech Connect (OSTI)

    Frantz, J.H. Jr. (S.A. Holditch Associates, Inc., Pittsburgh, PA (United States)); Luffel, D. (ResTech Houston, Inc., Houston, TX (United States)); Kubik, W. (K A Energy Consultants, Tulsa, OK (United States))

    1993-08-01T23:59:59.000Z

    The Gas Research Institute (GRI) has been sponsoring a cooperative well program with Ashland Exploration, Inc., (AEI) during the past two years targeting the Devonian Shale and Berea sandstone formations in Pike County of eastern Kentucky. Operators typically complete both the shales and Berea in one well bore in this area. This presentation summarizes the research results of the Berea cooperative well, the COOP 2 (Ashland FMC 80). The specific objectives of the Berea evaluation in the COOP 2 were to develop an integrated reservoir description for stimulation design and predicting long-term well performance, identify geologic production controls, determine the in-situ stress profile, and develop Berea log interpretation models for gas porosity and stress. To satisfy these objectives, data were collected and analyzed from 146 ft of whole core, open-hole geophysical logs, including formation microscanner and digital sonic, in-situ stress measurements, and prefracture production and pressure transient tests. In addition, data from a minifracture, a fracture stimulation treatment, and postfracture performance tests were analyzed. The authors determined the integrated reservoir/hydraulic fracture descriptions from analyzing the data collected in the open- and cased-hole, in addition to the log interpretation models developed to accurately predict gas porosity and stress profiles. Results can be applied by operators to better understand the Berea reservoir in the study area, predict well performance, and design completion procedures and stimulation treatments. The methodology can also be applied to other tight-gas sand formations.

  10. Geochemistry of formation waters from the Lower Silurian Clinton Formation (Albion Sandstone), eastern Ohio

    SciTech Connect (OSTI)

    Sanders, L.L. (Illinois Univ., Chicago (United States))

    1991-10-01T23:59:59.000Z

    Waters of the petroleum-bearing Clinton formation (Albion Sandstone) of eastern Ohio are highly concentrated brines with average total dissolved solids (TDS) of 250,000 ppm. Sodium, calcium, and chloride account for 97% of the TDS. Distribution of divalent metal chlorides (MCl{sub 2}) allows inference of an up-dip paleoflow direction, although present-day flow is probably down-dip paleoflow direction, although present-day flow is probably down-dip. Solute distribution may have been emplaced during early basin development; it thus provides a snapshot of paleoflow. Formation structure alone can not explain MCl{sub 2} trends; they probably also are controlled by regional variation in salt thickness. Major constituent data do not indicate that membrane filtration affected the waters. High bromide content (mean = 1,860 ppm) of the water indicates that they originated from evaporating seawater. They probably are related genetically to the Salina evaporite group. Calculations show that several subsequent diagenetic reactions can account for the observed major ion composition. Recrystallization of aragonite and dolomitization of calcite probably occurred as the waters moved through the big Lime and/or the Packer Shell carbonates. Cation exchange and chlorite formation probably altered water composition during interaction with shales of the Cabot Head formation and within the Clinton. Minor constituents of the waters appear to be controlled by reactions with clays.

  11. Regional diagenetic variation in Norphlet sandstone: Implications for reservoir quality and the origin of porosity

    SciTech Connect (OSTI)

    Kugler, R.L.; McHugh, A. (Univ. of New Orleans, LA (USA))

    1990-09-01T23:59:59.000Z

    Although deeply buried (18,000->20,000 ft) eolian and reworked marine Norphlet arkose and subarkose in Mississippi, Alabama, and Florida have been intensely studied by several workers, fundamental questions remain regarding diagenetic controls on reservoir quality and the origin of porosity. In spite of a regionally uniform framework composition of quartz, albite, and potassium feldspar, the diagenetic character of the unit is variable on a scale ranging from individual laminations to single hydrocarbon-producing fields to areas encompassing several fields or offshore blocks. The presence or absence of clay minerals in various forms clearly is a dominant control on porosity-permeability trends. In deep reservoirs in Mobile Bay and offshore Alabama and Florida, petrographic evidence for dissolution of pervasive authigenic carbonate and/or evaporite minerals to produce high secondary porosity values is equivocal or absent. Although evidence exists for some secondary porosity, much porosity appears to be relict primary porosity. On a regional scale, including both onshore and offshore areas, sandstones with radial, authigenic chlorite coats consistently have high porosity and permeability. In Mobile Bay and offshore Alabama, the distribution of this form of chlorite may be controlled by the presence of precursor clay/iron-oxide grain coats. The occurrence of these coats likely is related to environment of deposition.

  12. Injection of CO2 with H2S and SO2 and Subsequent Mineral Trapping in Sandstone-Shale Formation

    SciTech Connect (OSTI)

    Xu, Tianfu; Apps, John A.; Pruess, Karsten; Yamamoto, Hajime

    2004-09-07T23:59:59.000Z

    Carbon dioxide (CO{sub 2}) injection into deep geologic formations can potentially reduce atmospheric emissions of greenhouse gases. Sequestering less-pure CO{sub 2} waste streams (containing H{sub 2}S and/or SO{sub 2}) would be less expensive or would require less energy than separating CO{sub 2} from flue gas or a coal gasification process. The long-term interaction of these injected acid gases with shale-confining layers of a sandstone injection zone has not been well investigated. We therefore have developed a conceptual model of injection of CO{sub 2} with H{sub 2}S and/or SO{sub 2} into a sandstone-shale sequence, using hydrogeologic properties and mineral compositions commonly encountered in Gulf Coast sediments of the United States. We have performed numerical simulations of a 1-D radial well region considering sandstone alone and a 2-D model using a sandstone-shale sequence under acid-gas injection conditions. Results indicate that shale plays a limited role in mineral alteration and sequestration of gases within a sandstone horizon for short time periods (10,000 years in present simulations). The co-injection of SO{sub 2} results in different pH distribution, mineral alteration patterns, and CO{sub 2} mineral sequestration than the co-injection of H{sub 2}S or injection of CO{sub 2} alone. Simulations generate a zonal distribution of mineral alteration and formation of carbon and sulfur trapping minerals that depends on the pH distribution. The co-injection of SO{sub 2} results in a larger and stronger acidified zone close to the well. Precipitation of carbon trapping minerals occurs within the higher pH regions beyond the acidified zones. In contrast, sulfur trapping minerals are stable at low pH ranges (below 5) within the front of the acidified zone. Corrosion and well abandonment due to the co-injection of SO{sub 2} could be important issues. Significant CO{sub 2} is sequestered in ankerite and dawsonite, and some in siderite. The CO{sub 2} mineral-trapping capability can reach 80 kg per cubic meter of medium. Most sulfur is trapped through alunite precipitation, although some is trapped by anhydrite precipitation and minor amount of pyrite. The addition of the acid gases and induced mineral alteration result in changes in porosity. The limited information currently available on the mineralogy of natural high-pressure acid-gas reservoirs is generally consistent with our simulations.

  13. Superconformal Chern-Simons Partition Functions of Affine D-type Quiver from Fermi Gas

    E-Print Network [OSTI]

    Sanefumi Moriyama; Tomoki Nosaka

    2015-04-29T23:59:59.000Z

    We consider the partition function of the superconformal Chern-Simons theory with the quiver diagram being the affine D-type Dynkin diagram. Rewriting the partition function into that of a Fermi gas system, we show that the perturbative expansions in 1/N are summed up to an Airy function, as in the ABJM theory or more generally the theory of the affine A-type quiver. As a corollary, this provides a proof for the previous proposal in the large N limit. For the special values of the Chern-Simons levels, we further identify three species of the membrane instantons.

  14. Photoproduction through Chern-Simons term induced interactions in holographic QCD

    SciTech Connect (OSTI)

    Domokos, Sophia K.; Harvey, Jeffrey A. [Enrico Fermi Institute and Department of Physics, University of Chicago, Chicago Illinois 60637 (United States); Grigoryan, Hovhannes R. [Physics Division, Argonne National Laboratory, Argonne, Illinois 60439-4843 (United States)

    2009-12-01T23:59:59.000Z

    We employ both top-down and bottom-up holographic dual models of QCD to calculate vertex functions and couplings that are induced by the five-dimensional Chern-Simons term. We use these couplings to study the photoproduction of f{sub 1} mesons. The Chern-Simons-term-induced interaction leads to a simple relation between the polarization of the incoming photon and the final state f{sub 1} meson which should allow a clear separation of this interaction from competing processes.

  15. PARTICLE FILTER WITH EFFICIENT IMPORTANCE SAMPLING AND MODE TRACKING (PF-EIS-MT) AND ITS APPLICATION TO LANDMARK SHAPE TRACKING

    E-Print Network [OSTI]

    Vaswani, Namrata

    PARTICLE FILTER WITH EFFICIENT IMPORTANCE SAMPLING AND MODE TRACKING (PF-EIS-MT) AND ITS a practically implementable particle filtering (PF) method called "PF-EIS-MT" for tracking on large dimensional dimensions and (b) direct application of PF requires an impractically large number of particles. PF-EIS

  16. MSU Human Resources 19 Montana Hall ~ PO Box 172520 ~ Bozeman, MT 59717-2520

    E-Print Network [OSTI]

    Dyer, Bill

    MSU Human Resources 19 Montana Hall ~ PO Box 172520 ~ Bozeman, MT 59717-2520 Tel (406) 994 with the Social Security Administration and State policies, the Human Resources procedure for Name and Address changes has been modified. The Human Resources Department uses two separate forms ­ one for name changes

  17. Dr. Joseph A. Shaw Electrical & Computer Engineering Dept., Montana State University, Bozeman, MT 59717

    E-Print Network [OSTI]

    Lawrence, Rick L.

    Dr. Joseph A. Shaw Electrical & Computer Engineering Dept., Montana State University, Bozeman, MT M.S. Electrical Engineering University of Utah 1987 B.S. Electrical Engineering University of Alaska Experience: 2008 ­ present Professor ­ Electrical & Computer Engineering (ECE) Department, Montana State

  18. Behavioral/Systems/Cognitive Receptive Field Positions in Area MT during Slow Eye

    E-Print Network [OSTI]

    Krekelberg, Bart

    Behavioral/Systems/Cognitive Receptive Field Positions in Area MT during Slow Eye Movements Till S across eye movements. We first tested the hypothesis that motion signals are integrated by neurons whose receptive fields (RFs) do not move with the eye but stay fixed in the world. Specifically, we measured

  19. Hybrid Rule-Based Example-Based MT: Feeding Apertium with Sub-sentential Translation Units

    E-Print Network [OSTI]

    Way, Andy

    Hybrid Rule-Based ­ Example-Based MT: Feeding Apertium with Sub-sentential Translation Units Felipe S´anchez-Mart´inez Mikel L. Forcada Andy Way Dept. Llenguatges i Sistemes Inform`atics Universitat University Dublin 9, Ireland {mforcada,away}@computing.dcu.ie Abstract This paper describes a hybrid machine

  20. Job submission to grid computing environments RP Bruin, TOH White, AM Walker, KF Austen, MT Dove

    E-Print Network [OSTI]

    Cambridge, University of

    Job submission to grid computing environments RP Bruin, TOH White, AM Walker, KF Austen, MT Dove Albemarle Street, London W1S 4BS Abstract The problem of enabling scientist users to submit jobs to grid scientists to work with raw Globus job-submission commands ­ in the end they are likely to end up

  1. The School for Marine Science and The Heat Budget for Mt. Hope Bay

    E-Print Network [OSTI]

    Chen, Changsheng

    SMAST, UMassD SMAST Technical Report No. SMAST-03-0801 The School for Marine Science and Technology not hold during the summer, when heat losses due to tidal exchanges between MHB and NB/SR may be important-fuel-fired electrical generating facility at Brayton Point, Massachusetts, on the Mt. Hope Bay ecosystem. Recent studies

  2. MS2a: Bioinformatics and Computational Biology -16MT Recommended Prerequisites

    E-Print Network [OSTI]

    Goldschmidt, Christina

    MS2a: Bioinformatics and Computational Biology - 16MT Recommended Prerequisites None. In particular of statistical analysis and modelling to be properly interpreted. The fields of Bioinformatics and Computational Biology have this as their subject matter and there is no sharp boundary between them. Bioinformatics has

  3. Secondary oil recovery from selected Carter sandstone oilfields, Black Warrior Basin, Alabama

    SciTech Connect (OSTI)

    Anderson, J.C.

    1993-04-15T23:59:59.000Z

    The objectives of this secondary oil recovery project involving the Carter sandstone in northwest Alabama are: (1) To increase the ultimate economic recovery of oil from the Carter reservoirs, thereby increasing domestic reserves and lessening US dependence on foreign oil; (2) To extensively model, test, and monitor the reservoirs so their management is optimized; and (3) To assimilate and transfer the information and results gathered to other US oil companies to encourage them to attempt similar projects. Start-up water injection began on 0 1/12/93 at the Central Bluff Field, and daily operations began on 01/13/93. These operations include monitoring wellhead pressures at the injector and two producers, and injection water treatment. Water injection was running 200-300 bbl/day at the end of February. Once the unit is pressured-up well testing will be performed. Unitization was approved on 03/01/93.b. For the North Fairview Field correlations and log analyses were used to determine the fluid and rock properties. A summary of these properties is included in Table 1. The results of the log analysis were used to construct the hydrocarbon pore volume map shown on Figure 1. The map was planimetered to determine original oil-in-place (OOIP) values and the hydrocarbon pore volume by tract. The OOIP summed over an tracts by this method is 824.7 Mbbl (Figure 2). Original oil-in-place was also calculated directly: two such independent calculations gave 829.4 Mbbl (Table 1) and 835.6 Mbbl (Table 2). Thus, the three estimates of OOIP are within one percent. The approximately 88% of OOIP remaining provides an attractive target for secondary recovery. Injection start-up is planned for mid-June.

  4. Secondary oil recovery from selected Carter sandstone oilfields--Black Warrior Basin, Alabama. Final report

    SciTech Connect (OSTI)

    Anderson, J.C.

    1995-02-01T23:59:59.000Z

    Producibility problems, such as low reservoir pressure and reservoir heterogeneity, have severely limited oil production from the Central Bluff and North Fairview fields. Specific objectives for this project were: To successfully apply detailed geologic and engineering studies with conventional waterflood technologies to these fields in an effort to increase the ultimate economic recovery of oil from Carter sandstone fields; To extensively model, test and evaluate these technologies; thereby, developing a sound methodology for their use and optimization; and To team with Advanced Resources International and the US DOE to assimilate and transfer the information and results gathered from this study to other oil companies to encourage the widespread use of these technologies. At Central Bluff, water injection facilities were constructed and water injection into one well began in January 1993. Oil response from the waterflood has been observed at both producing wells. One of the producing wells has experienced early water breakthrough and a concomitant drop in secondary oil rate. A reservoir modeling study was initiated to help develop an appropriate operating strategy for Central Bluff. For the North Fairview unit waterflood, a previously abandoned well was converted for water injection which began in late June 1993. The reservoir is being re-pressurized, and unit water production has remained nil since flood start indicating the possible formation of an oil bank. A reservoir simulation to characterize the Carter sand at North Fairview was undertaken and the modeling results were used to forecast field performance. The project was terminated due to unfavorable economics. The factors contributing to this decision were premature water breakthrough at Central Bluff, delayed flood response at North Fairview and stalled negotiations at the South Bluff site.

  5. Study on fine geological modelling of the fluvial sandstone reservoir in Daqing oilfield

    SciTech Connect (OSTI)

    Zhoa Han-Qing [Daqing Research Institute, Helongjiang (China)

    1997-08-01T23:59:59.000Z

    These paper aims at developing a method for fine reservoir description in maturing oilfields by using close spaced well logging data. The main productive reservoirs in Daqing oilfield is a set of large fluvial-deltaic deposits in the Songliao Lake Basin, characterized by multi-layers and serious heterogeneities. Various fluvial channel sandstone reservoirs cover a fairly important proportion of reserves. After a long period of water flooding, most of them have turned into high water cut layers, but there are considerable residual reserves within them, which are difficult to find and tap. Making fine reservoir description and developing sound a geological model is essential for tapping residual oil and enhancing oil recovery. The principal reason for relative lower precision of predicting model developed by using geostatistics is incomplete recognition of complex distribution of fluvial reservoirs and their internal architecture`s. Tasking advantage of limited outcrop data from other regions (suppose no outcrop data available in oilfield) can only provide the knowledge of subtle changing of reservoir parameters and internal architecture. For the specific geometry distribution and internal architecture of subsurface reservoirs (such as in produced regions) can be gained only from continuous infilling logging well data available from studied areas. For developing a geological model, we think the first important thing is to characterize sandbodies geometries and their general architecture`s, which are the framework of models, and then the slight changing of interwell parameters and internal architecture`s, which are the contents and cells of the model. An excellent model should possess both of them, but the geometry is the key to model, because it controls the contents and cells distribution within a model.

  6. Millikelvin cooling of an optically trapped microsphere Tongcang Li, Simon Kheifets, and Mark G. Raizen

    E-Print Network [OSTI]

    Raizen, Mark G.

    of macroscopic observables. In recent years, great progress has been made in cooling micromechanical resonators detection system24 was not sufficient to enable feedback cooling. According to the equipartition theorem1 Millikelvin cooling of an optically trapped microsphere in vacuum Tongcang Li, Simon Kheifets

  7. Knots in $SU\\left(M|N\\right) $ Chern-Simons Field Theory

    E-Print Network [OSTI]

    Xin Liu

    2010-06-04T23:59:59.000Z

    Knots in the Chern-Simons field theory with Lie super gauge group $SU\\left(M|N\\right) $ are studied, and the $% S_{L}\\left(\\alpha,\\beta,z\\right) $ polynomial invariant with skein relations are obtained under the fundamental representation of $\\mathfrak{su}\\left(M|N\\right) $.

  8. A NonFunctional Approach to System Integrity Simon N. Foley, Member, IEEE

    E-Print Network [OSTI]

    Foley, Simon

    , Protocols, Reliability, Software verification and validation, System analysis and design. I. INTRODUCTION1 A Non­Functional Approach to System Integrity Simon N. Foley, Member, IEEE Abstract effectiveness is justified more on the basis of experience and ``best practice'', rather than on any common

  9. Interactive Arts and Technology Student Union Room 245, Simon Fraser University Surrey

    E-Print Network [OSTI]

    Interactive Arts and Technology Student Union Room 245, Simon Fraser University Surrey 2400 Central, For some time now, members of the Executive of the Interactive Arts and Technology Student Union (IATSU on our campus who are not Interactive Arts and Technology students. We have considered several

  10. Bitter to Better --How to Make Bitcoin a Better Currency Simon Barber 1

    E-Print Network [OSTI]

    Shi, Elaine

    Bitter to Better -- How to Make Bitcoin a Better Currency Simon Barber 1 , Xavier Boyen 1 , Elaine. Bitcoin is a distributed digital currency which has attracted a substan- tial number of users. We perform an in-depth investigation to understand what made Bitcoin so successful, while decades of research

  11. Interactive Translucent Volume Rendering and Procedural Modeling Simon Premoze Charles Hansen

    E-Print Network [OSTI]

    Kniss, Joe Michael

    Interactive Translucent Volume Rendering and Procedural Modeling Joe Kniss Simon Premoze¡ Charles rendered from a CT scan of a carp. Left: Blinn-Phong shading. Center and right: translucent volume shading. Abstract Direct volume rendering is a commonly used technique in visual- ization applications. Many

  12. Wind power bidding in a soft penalty market Antonio Giannitrapani, Simone Paoletti, Antonio Vicino, Donato Zarrilli

    E-Print Network [OSTI]

    Giannitrapani, Antonello

    Wind power bidding in a soft penalty market Antonio Giannitrapani, Simone Paoletti, Antonio Vicino, Donato Zarrilli Abstract-- In this paper we consider the problem of offering wind power in a market of the prior wind power statistics, is derived analytically by maximizing the expected profit of the wind power

  13. BEaST: Brain Extraction based on nonlocal Segmentation Technique Simon F. Eskildsena,b,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    BEaST: Brain Extraction based on nonlocal Segmentation Technique Simon F. Eskildsena,b, , PierrickConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, 3801 University Street Research Centre (DRC), UCL Institute of Neurology, Queens Square, London, WC1N 3BG, UK Abstract ­ Brain

  14. Experiment 2 Praktikum: Energy Systems Instructor: MSc Simon Tymen Experiment 2

    E-Print Network [OSTI]

    Rossak, Wilhelm R.

    Experiment 2 Praktikum: Energy Systems Instructor: MSc Simon Tymen Experiment 2 Electro kinds of fuel cells and producing new hydrogen storage materials. NaBH4 is a good alternative operating in three-phase system. Different types of electrocatalysts for hydrogen peroxide reduction have

  15. DAMAGE DETECTION IN A WIND TURBINE BLADE BASED ON TIME SERIES Simon Hoell, Piotr Omenzetter

    E-Print Network [OSTI]

    Boyer, Edmond

    DAMAGE DETECTION IN A WIND TURBINE BLADE BASED ON TIME SERIES METHODS Simon Hoell, Piotr Omenzetter, the consequences are growing sizes of wind turbines (WTs) and erections in remote places, such as off in the past years, thus efficient energy harvesting becomes more important. For the sector of wind energy

  16. Simon Fraser University's School for International Studies invites you to a free public lecture

    E-Print Network [OSTI]

    , and opinions on the questions above, and more generally on the course of economic policy reform in India since to a free public lecture India at the Crossroads: The Meaning of Modi's Victory By Dr. Vivek Dehejia Tuesday, September 23, 2014 17:00 Policy Room 4400 Simon Fraser University, Segal Building 500 Granville Street

  17. Exact beta-functions in softly-broken N=2 Chern-Simons matter theories

    E-Print Network [OSTI]

    I. Jack; C. Luckhurst

    2011-01-21T23:59:59.000Z

    We present exact results for the beta-functions for the soft-breaking parameters in softly-broken N=2 Chern-Simons matter theories in terms of the anomalous dimension in the unbroken theory. We check our results explicitly up to the two loop level.

  18. Evaluation of an adjoint-based liner impedance eduction J. Primus, E. Piot and F. Simon

    E-Print Network [OSTI]

    Boyer, Edmond

    impedance with grazing flow. Dean [1] introduced an in-situ technique relying on two microphone measurements impedance which minimizes the error between numerical simulations and a set of measured data. The methodEvaluation of an adjoint-based liner impedance eduction technique J. Primus, E. Piot and F. Simon

  19. Pictures: A simple structured graphics model Sigbjorn Finne and Simon Peyton Jones,

    E-Print Network [OSTI]

    Jones, Simon Peyton

    Pictures: A simple structured graphics model Sigbjorn Finne and Simon Peyton Jones, Department­independent model for de­ scribing two­dimensional graphics using a functional language. Graphical scenes the geometric composition of arbitrary pictures. The structured graphics model presented has been implemented

  20. Brunet-Derrida-Simon conjectures Background material Main results Proof overview The genealogy of branching Brownian

    E-Print Network [OSTI]

    Berestycki, Julien

    Brunet-Derrida-Simon conjectures Background material Main results Proof overview The genealogy with constant population size Conjecture 1 : the speed Conjecture 2 : timescale Conjecture 3 : Genealogy 2 Background material So what is the Bolthausen-Sznitman coalescent ? CSBP Genealogy of Neveu's CSBP BBM 3 Main

  1. Evaluating the options for carbon sequestration Clair Gough and Simon Shackley

    E-Print Network [OSTI]

    Watson, Andrew

    Evaluating the options for carbon sequestration Clair Gough and Simon Shackley Tyndall Centre for carbon sequestration Tyndall Centre Technical Report No. 2 November 2002 This is the final report from Tyndall research project IT1.22 (Carbon sequestration: a pilot stage multi-criteria evaluation

  2. New anionic states of the lithium trimer Maciej Gutowski') and Jack Simons

    E-Print Network [OSTI]

    Simons, Jack

    to the high temperatures necessary to heat the metal and the corrosive properties of lithium.' PhotoelectronNew anionic states of the lithium trimer Maciej Gutowski') and Jack Simons Chemistry Department interaction with single, double, and approximate triple excitations calculations to more accurately determine

  3. A Survey of Document Image Retrieval in Digital Libraries Simone Marinai

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Survey of Document Image Retrieval in Digital Libraries Simone Marinai Dipartimento di Sistemi e. Keywords : Digital Library, Document Image Retrieval, Handwriting, Layout Analysis, OCR. 1 Introduction In the last few years, Digital Libraries (DL) became one im- portant application area for Document Image

  4. A Global Personal Energy Meter Simon Hay,Andrew Rice and Andy Hopper

    E-Print Network [OSTI]

    Cambridge, University of

    im- proved estimates by factoring in airline data. The energy consumption trace for an applianceCar: 40 kwH/d A Global Personal Energy Meter Simon Hay,Andrew Rice and Andy Hopper http of the Planet. Phil. Trans. R. Soc. A, 366(1881):3685--3697, October 2008. David JC MacKay. Sustainable Energy

  5. 9. Forza e debolezza del governo locale di Tommaso Vitale e Simone Tosi

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    227 9. Forza e debolezza del governo locale di Tommaso Vitale e Simone Tosi 9.1 Quasi un di governo dei soggetti sul territorio. L'inserimento nell'Obbiettivo 2 dei Fondi Strutturali è stato sue successive evoluzioni ­ non hanno pressoché mai rag- giunto posizioni di governo. Anche sul lato

  6. The Limits of ESS Methodology Simon M. Huttegger Kevin J. S. Zollman

    E-Print Network [OSTI]

    Zollman, Kevin

    The Limits of ESS Methodology Simon M. Huttegger Kevin J. S. Zollman December 31, 2010 Abstract of evolutionarily stable strategy (ESS) can tell us about evolutionary processes. We shall argue that ESS is very on refinements of Nash equilibrium. In the first place, ESS can also be viewed as a Nash equilibrium refinement

  7. A Short Cut to Deforestation Andrew Gill John Launchbury Simon L Peyton Jones

    E-Print Network [OSTI]

    Jones, Simon Peyton

    A Short Cut to Deforestation Andrew Gill John Launchbury Simon L Peyton Jones Department example of just such a transformation is deforestation (Wadler 1990]). Deforestation removes arbitrary]), we know of no mature com- piler that uses deforestation as part of its regular optimisa- tions

  8. Interferometric velocity analysis using physical and nonphysical energy Simon King1

    E-Print Network [OSTI]

    Interferometric velocity analysis using physical and nonphysical energy Simon King1 , Andrew Curtis as apparent energy that could not have propagated between receiver locations -- so-called nonphysical energy. We have developed a novel method of velocity analysis that uses both the physical and nonphysical

  9. THE AUTOMORPHISM TOWER PROBLEM REVISITED WINFRIED JUST, SAHARON SHELAH, AND SIMON THOMAS

    E-Print Network [OSTI]

    Thomas, Simon

    THE AUTOMORPHISM TOWER PROBLEM REVISITED WINFRIED JUST, SAHARON SHELAH, AND SIMON THOMAS Abstract.It is well-known that the automorphism towers of infinite centr* *e Gffwith InnGffvia the natural embedding.) The automorphism tower is said to terminate if there exists

  10. Analysis of Critical Permeabilty, Capillary Pressure and Electrical Properties for Mesaverde Tight Gas Sandstones from Western U.S. Basins

    SciTech Connect (OSTI)

    Alan Byrnes; Robert Cluff; John Webb; John Victorine; Ken Stalder; Daniel Osburn; Andrew Knoderer; Owen Metheny; Troy Hommertzheim; Joshua Byrnes; Daniel Krygowski; Stefani Whittaker

    2008-06-30T23:59:59.000Z

    Although prediction of future natural gas supply is complicated by uncertainty in such variables as demand, liquefied natural gas supply price and availability, coalbed methane and gas shale development rate, and pipeline availability, all U.S. Energy Information Administration gas supply estimates to date have predicted that Unconventional gas sources will be the dominant source of U.S. natural gas supply for at least the next two decades (Fig. 1.1; the period of estimation). Among the Unconventional gas supply sources, Tight Gas Sandstones (TGS) will represent 50-70% of the Unconventional gas supply in this time period (Fig. 1.2). Rocky Mountain TGS are estimated to be approximately 70% of the total TGS resource base (USEIA, 2005) and the Mesaverde Group (Mesaverde) sandstones represent the principal gas productive sandstone unit in the largest Western U.S. TGS basins including the basins that are the focus of this study (Washakie, Uinta, Piceance, northern Greater Green River, Wind River, Powder River). Industry assessment of the regional gas resource, projection of future gas supply, and exploration programs require an understanding of reservoir properties and accurate tools for formation evaluation. The goal of this study is to provide petrophysical formation evaluation tools related to relative permeability, capillary pressure, electrical properties and algorithms for wireline log analysis. Detailed and accurate moveable gas-in-place resource assessment is most critical in marginal gas plays and there is need for quantitative tools for definition of limits on gas producibility due to technology and rock physics and for defining water saturation. The results of this study address fundamental questions concerning: (1) gas storage; (2) gas flow; (3) capillary pressure; (4) electrical properties; (5) facies and upscaling issues; (6) wireline log interpretation algorithms; and (7) providing a web-accessible database of advanced rock properties. The following text briefly discusses the nature of these questions. Section I.2 briefly discusses the objective of the study with respect to the problems reviewed.

  11. Measuring and predicting reservoir heterogeneity in complex deposystems: The fluvial-deltaic Big Injun sandstone in West Virginia

    SciTech Connect (OSTI)

    Patchen, D.G.; Hohn, M.E.; Aminian, K.; Donaldson, A.; Shumaker, R.; Wilson, T.

    1993-04-01T23:59:59.000Z

    The purpose of this research is to develop techniques to measure and predict heterogeneities in oil reservoirs that are the products of complex deposystems. The unit chosen for study is the Lower Mississippian Big Injun sandstone, a prolific oil producer (nearly 60 fields) in West Virginia. This research effort has been designed and is being implemented as an integrated effort involving stratigraphy, structural geology, petrology, seismic study, petroleum engineering, modeling and geostatistics. Sandstone bodies are being mapped within their regional depositional systems, and then sandstone bodies are being classified in a scheme of relative heterogeneity to determine heterogeneity across depositional systems. Facies changes are being mapped within given reservoirs, and the environments of deposition responsible for each facies are being interpreted to predict the inherent relative heterogeneity of each facies. Structural variations will be correlated both with production, where the availability of production data will permit, and with variations in geologic and engineering parameters that affect production. A reliable seismic model of the Big Injun reservoirs in Granny Creek field is being developed to help interpret physical heterogeneity in that field. Pore types are being described and related to permeability, fluid flow and diagenesis, and petrographic data are being integrated with facies and depositional environments to develop a technique to use diagenesis as a predictive tool in future reservoir development. Another objective in the Big Injun study is to determine the effect of heterogeneity on fluid flow and efficient hydrocarbon recovery in order to improve reservoir management. Graphical methods will be applied to Big Injun production data and new geostatistical methods will be developed to detect regional trends in heterogeneity.

  12. Diagenesis of Eolian and fluvial feldspathic sandstones, Norphlet formation (upper Jurassic), Rankin County, Mississippi, and Mobile County, Alabama

    SciTech Connect (OSTI)

    McBride, E.F.; Land, L.S.; Mack, L.E.

    1987-09-01T23:59:59.000Z

    Norphlet sandstones in seven cores from Mississippi and Alabama are arkoses and subarkoses deposited in eolian-dune, interdune, and fluvial environments. Similar to the deeply buried (> 5 km) Tertiary feldspathic sandstones of the Gulf basin, all detrital plagioclase that survived dissolution has been albitized. Fluvial red sandstone lost all initial porosity by the introduction of preburial pedogenic calcite and compaction. Initial porosity of eolian sands was reduced by compaction to an average of 29%; and later by cementation by quartz, carbonates, anhydrite, halite, K-feldspar, and illite. Quartz and anhydrite cements precipitated between 90/sup 0/ and 100/sup 0/C (approximately 2.3 km deep), carbonates and halite cements formed below 120/sup 0/C (< 3 km), and late-stage illite cement formed between 130/sup 0/ and 150/sup 0/C (4-5 km deep). Cements are patchy, and some, especially quartz and anhydrite, are texture-selective, being more abundant in coarser laminae. Secondary porosity, which makes up approximately half the porosity in thin sections, formed by dissolution of detrital grains (feldspar, rock fragments) and cements (anhydrite, carbonate, halite). Reservoir bitumen records an early phase of oil entrapment. Reservoir quality is influenced by the abundance of reservoir bitumen and thread-like illite, both of which bridge pores. Isotopic data suggest that during the first 30 to 40 m.y. of burial, subsurface diagenesis of the Norphlet Formation was dominated by deep-circulating, hot, meteoric water. This phenomenon may be characteristic of the early diagenetic history of rifted basins. 10 figures, 5 tables.

  13. Interpretation of Pennsylvania Bartlesville sandstone in southeastern Kansas and northeastern Oklahoma from continuous dipmeter and gamma-ray logs 

    E-Print Network [OSTI]

    Kranz, Dwight Stanley

    1981-01-01T23:59:59.000Z

    are replaced lat- er ally by channel-fill sequences. The channel-fi 11 sequence is aener- ally 50 to 90 ft (16. 4 to 29. 5 m) thick and is composed of interlami- nated siltstones and shale. The channel-fill sediments are fine grained to clay size... structures, shale character, and soft sediment deformational features in the Middle Bartles- ville Sandstone, J. Lips 1 (JL 1) and Henry Smith 1 (HS 1), South Bartlett Area, LaBette County, Kansas. LIST OF FIGURES - Continued Figure Page 12 13 14...

  14. Depositional environment of Woodbine and Eagleford sandstones at OSR-Halliday field, Leon and Madison counties, Texas 

    E-Print Network [OSTI]

    Bukowski, Charles Thomas

    1984-01-01T23:59:59.000Z

    D POSITIONAL ENYIRONMENT OF VOODBINE AmD EAGLEFORD SANDSTONES AT OSR-HALLIDAY FIFI. D, LEON AND MADISON COUNTIES TEXAS A Th sis by CHARI ES TvOMAS BUKONSKI~ -R Submitted to the Graduate Col]ege of Terse AVA University in partial fulfi... Madison Counties, Texas. (August, 1984) Charles Thomas Bukowski, Jr. , B. S. , Texas A&M L'niversity Chairman of Advisory Committee: Dr. Robert R. Berg OSR-Halliday field is a stratigraphic o31 trap in Leon and Mac'ison counties, Texas. The composition...

  15. Interpretation of Pennsylvania Bartlesville sandstone in southeastern Kansas and northeastern Oklahoma from continuous dipmeter and gamma-ray logs

    E-Print Network [OSTI]

    Kranz, Dwight Stanley

    1981-01-01T23:59:59.000Z

    are replaced lat- er ally by channel-fill sequences. The channel-fi 11 sequence is aener- ally 50 to 90 ft (16. 4 to 29. 5 m) thick and is composed of interlami- nated siltstones and shale. The channel-fill sediments are fine grained to clay size... structures, shale character, and soft sediment deformational features in the Middle Bartles- ville Sandstone, J. Lips 1 (JL 1) and Henry Smith 1 (HS 1), South Bartlett Area, LaBette County, Kansas. LIST OF FIGURES - Continued Figure Page 12 13 14...

  16. Anisotropy and Spatial Variation of Relative Permeability and Lithologic Character of Tensleep Sandstone Reservoirs in the Bighorn and Wind River Basins, Wyoming

    SciTech Connect (OSTI)

    Dunn, Thomas L.

    1996-10-01T23:59:59.000Z

    This multidisciplinary study is designed to provide improvements in advanced reservoir characterization techniques. This goal is to be accomplished through: (1) an examination of the spatial variation and anisotropy of relative permeability in the Tensleep Sandstone reservoirs of Wyoming; (2) the placement of that variation and anisotropy into paleogeographic, depositional, and diagenetic frameworks; (3) the development of pore-system imagery techniques for the calculation of relative permeability; (4) reservoir simulations testing the impact of relative permeability anisotropy and spatial variation on Tensleep Sandstone reservoir enhanced oil recovery; and (5) a geochemical investigation of the spatial and dynamic alteration in sandstone reservoirs that is caused by rock-fluid interaction during CO{sub 2}-enhanced oil recovery processes.

  17. Evaluating impacts of CO2 gas intrusion into a confined sandstone aquifer: Experimental results

    SciTech Connect (OSTI)

    Qafoku, Nikolla; Lawter, Amanda R.; Shao, Hongbo; Wang, Guohui; Brown, Christopher F.

    2014-12-31T23:59:59.000Z

    Deep subsurface storage and sequestration of CO2 has been identified as a potential mitigation technique for rising atmospheric CO2 concentrations. Sequestered CO2 represents a potential risk to overlying aquifers if the CO2 leaks from the deep storage reservoir. Experimental and modeling work is required to evaluate potential risks to groundwater quality and develop a systematic understanding of how CO2 leakage may cause important changes in aquifer chemistry and mineralogy by promoting dissolution/precipitation, adsorption/desorption, and redox reactions. Sediments from the High Plains aquifer in Kansas, United States, were used in this investigation, which is part of the National Risk Assessment Partnership Program sponsored by the US Department of Energy. This aquifer was selected to be representative of consolidated sand and gravel/sandstone aquifers overlying potential CO2 sequestration repositories within the continental US. In this paper, we present results from batch experiments conducted at room temperature and atmospheric pressure with four High Plains aquifer sediments. Batch experiments simulate sudden, fast, and short-lived releases of the CO2 gas as would occur in the case of well failure during injection. Time-dependent release of major, minor, and trace elements were determined by analyzing the contacting solutions. Characterization studies demonstrated that the High Plains aquifer sediments were abundant in quartz and feldspars, and contained about 15 to 20 wt% montmorillonite and up to 5 wt% micas. Some of the High Plains aquifer sediments contained no calcite, while others had up to about 7 wt% calcite. The strong acid extraction tests confirmed that in addition to the usual elements present in most soils, rocks, and sediments, the High Plains aquifer sediments had appreciable amounts of As, Cd, Pb, Cu, and occasionally Zn, which potentially may be mobilized from the solid to the aqueous phase during or after exposure to CO2. However, the results from the batch experiments showed that the High Plains sediments mobilized only low concentrations of trace elements (potential contaminants), which were detected occasionally in the aqueous phase during these experiments. Importantly, these occurrences were more frequent in the calcite-free sediment. Results from these investigations provide useful information to support site selection, risk assessment, and public education efforts associated with geological CO2 storage and sequestration.

  18. THE VALENCE OF TITANIUM IN REFRACTORY FORSTERITE. S. B. Simon1 , S. R. Sutton1,2

    E-Print Network [OSTI]

    Grossman, Lawrence

    THE VALENCE OF TITANIUM IN REFRACTORY FORSTERITE. S. B. Simon1 , S. R. Sutton1,2 and L. Grossman3 and analyzed by electron probe. Titanium K XANES spectra were collected us- ing the GSECARS X-ray microprobe

  19. The Influence of Mantle Petrology on Basin Subsidence During Rifting Nina S.C. Simon & Yuri Y. Podladchikov

    E-Print Network [OSTI]

    Simon, Nina

    The Influence of Mantle Petrology on Basin Subsidence During Rifting Nina S.C. Simon & Yuri Y petrology on basin subsidence during rifting. EOS Transactions of the American Geophysical Union, 86

  20. LOCA simulation in NRU program: data report for the fourth materials experiment (MT-4)

    SciTech Connect (OSTI)

    Wilson, C.L.; Mohr, C.L.; Hesson, G.M.; Wildung, N.J.; Russcher, G.E.; Webb, B.J.; Freshley, M.D.

    1983-07-01T23:59:59.000Z

    A series of in-reactor experiments were conducted using full-length 32-rod pressurized water reactor (PWR) fuel bundles as part of the Loss-of-Coolant Accident (LOCA) Simulation Program by Pacific Northwest Laboratory (PNL). This experiment (MT-4) was funded by the US Nuclear Regulatory Commission (NRC) to evaluate ballooning and rupture during adiabatic heatup in the temperature range of 1033 to 1200K (1400 to 1700/sup 0/F). The 12 rest rods in the center of the 32-rod bundle were initially pressurized to 4.62 MPa (670 psia) to insure rupture in the correct temperature range. All 12 test rods ruptured with an average strain of 43.7% at the maximum flow blockage elevation of 2.68 m (105.4 in.). Experimental data for the MT-4 transient experiment and post-test measurements and photographs of the fuel are presented in this report.

  1. Predictive modeling of CO{sub 2} sequestration in deep saline sandstone reservoirs: Impacts of geochemical kinetics

    SciTech Connect (OSTI)

    Balashov, Victor N.; Guthrie, George D.; Hakala, J. Alexandra; Lopano, Christina L. J.; Rimstidt, Donald; Brantley, Susan L.

    2013-03-01T23:59:59.000Z

    One idea for mitigating the increase in fossil-fuel generated CO{sub 2} in the atmosphere is to inject CO{sub 2} into subsurface saline sandstone reservoirs. To decide whether to try such sequestration at a globally significant scale will require the ability to predict the fate of injected CO{sub 2}. Thus, models are needed to predict the rates and extents of subsurface rock-water-gas interactions. Several reactive transport models for CO{sub 2} sequestration created in the last decade predicted sequestration in sandstone reservoirs of ~17 to ~90 kg CO{sub 2} m{sup -3|. To build confidence in such models, a baseline problem including rock + water chemistry is proposed as the basis for future modeling so that both the models and the parameterizations can be compared systematically. In addition, a reactive diffusion model is used to investigate the fate of injected supercritical CO{sub 2} fluid in the proposed baseline reservoir + brine system. In the baseline problem, injected CO{sub 2} is redistributed from the supercritical (SC) free phase by dissolution into pore brine and by formation of carbonates in the sandstone. The numerical transport model incorporates a full kinetic description of mineral-water reactions under the assumption that transport is by diffusion only. Sensitivity tests were also run to understand which mineral kinetics reactions are important for CO{sub 2} trapping. The diffusion transport model shows that for the first ~20 years after CO{sub 2} diffusion initiates, CO{sub 2} is mostly consumed by dissolution into the brine to form CO{sub 2,aq} (solubility trapping). From 20-200 years, both solubility and mineral trapping are important as calcite precipitation is driven by dissolution of oligoclase. From 200 to 1000 years, mineral trapping is the most important sequestration mechanism, as smectite dissolves and calcite precipitates. Beyond 2000 years, most trapping is due to formation of aqueous HCO{sub 3}{sup -}. Ninety-seven percent of the maximum CO{sub 2} sequestration, 34.5 kg CO{sub 2} per m{sup 3} of sandstone, is attained by 4000 years even though the system does not achieve chemical equilibrium until ~25,000 years. This maximum represents about 20% CO{sub 2} dissolved as CO{sub 2},aq, 50% dissolved as HCO{sub 3}{sup -}{sub ,aq}, and 30% precipitated as calcite. The extent of sequestration as HCO{sub 3}{sup -} at equilibrium can be calculated from equilibrium thermodynamics and is roughly equivalent to the amount of Na+ in the initial sandstone in a soluble mineral (here, oligoclase). Similarly, the extent of trapping in calcite is determined by the amount of Ca2+ in the initial oligoclase and smectite. Sensitivity analyses show that the rate of CO{sub 2} sequestration is sensitive to the mineral-water reaction kinetic constants between approximately 10 and 4000 years. The sensitivity of CO{sub 2} sequestration to the rate constants decreases in magnitude respectively from oligoclase to albite to smectite.

  2. Altered Mitochondrial Retrograde Signaling in Response to mtDNA Depletion or a Ketogenic Diet

    E-Print Network [OSTI]

    Selfridge, Jennifer Eva

    2012-12-31T23:59:59.000Z

    kinase kinase MCI Mild cognitive impairment MCT Monocarboxylate transporter Mfn Mitofusin mtDNA Mitochondrial DNA mTOR Mammalian target of rapamycin mTORC1 mTOR complex 1 MRC Mitochondrial Respiratory Complex NAD(H) Nicotinamide adenine...; Smith et al., 1991; Sultana et al., 2010). Many studies suggest that oxidative damage is also present in individuals with mild cognitive impairment (MCI), a syndromic state that in many cases represents a very early AD clinical stage (Aluise et al...

  3. Global analysis of genetic variation in human arsenic (+ 3 oxidation state) methyltransferase (AS3MT)

    SciTech Connect (OSTI)

    Fujihara, Junko [Department of Legal Medicine, Faculty of Medicine, Shimane University, Izumo, Shimane (Japan); Soejima, Mikiko [Department of Forensic Medicine and Human Genetics, Kurume University School of Medicine, Kurume, Fukuoka (Japan); Yasuda, Toshihiro [Division of Medical Genetics and Biochemistry, Faculty of Medical Sciences, University of Fukui, Eiheiji-cho, Fukui (Japan); Koda, Yoshiro [Department of Forensic Medicine and Human Genetics, Kurume University School of Medicine, Kurume, Fukuoka (Japan); Agusa, Tetsuro [Department of Legal Medicine, Faculty of Medicine, Shimane University, Izumo, Shimane (Japan); Kunito, Takashi [Department of Environmental Sciences, Faculty of Science, Shinshu University, Matsumoto, Nagano (Japan); Tongu, Miki; Yamada, Takaya [Department of Experimental Animals, Center for Integrated Research in Science, Faculty of Medicine, Shimane University, Izumo (Japan); Takeshita, Haruo, E-mail: htakeshi@med.shimane-u.ac.j [Department of Legal Medicine, Faculty of Medicine, Shimane University, Izumo, Shimane (Japan)

    2010-03-15T23:59:59.000Z

    Human arsenic (+ 3 oxidation state) methyltransferase (AS3MT) is known to catalyze the methylation of arsenite. The objective of this study was to investigate the diversity of the AS3MT gene at the global level. The distribution of 18 single nucleotide polymorphisms (SNPs) in AS3MT was performed in 827 individuals from 10 populations (Japanese, Korean, Chinese, Mongolian, Tibetans, Sri Lankan Tamils, Sri Lankan Sinhalese, Nepal Tamangs, Ovambo, and Ghanaian). In the African populations, the A allele in A6144T was not observed; the allele frequencies of C35587 were much lower than those in other populations; the allele frequencies of A37616 and C37950 were relatively higher than those in other populations. Among Asian populations, Mongolians showed a different genotype distribution pattern. A lower C3963 and T6144 frequencies were observed, and, in the C37616A and T37950C polymorphism, the Mongolian population showed higher A37616 and C37950 allele frequencies than other Asian populations, similarly to the African populations. A total of 66 haplotypes were observed in the Ovambo, 48, in the Ghanaian, 99, in the Japanese, 103, in the Korean, 103, in the South Chinese, 20, in the Sri Lankan Tamil, 12, in the Sri Lankan Sinhalese, 21, in the Nepal Tamang, 50, in the Tibetan, and 45, in the Mongolian populations. The D' values between the SNP pairs were extremely high in the Sri Lankan Sinhalese population. Relatively higher D' values were observed in Mongolian and Sri Lankan Tamil populations. Network analysis showed two clusters that may have different origins, African and Asians (Chinese and/or Japanese). The present study is the first to demonstrate the existence of genetic heterogeneity in a world wide distribution of 18 SNPs in AS3MT.

  4. A supermatrix model for N=6 super Chern-Simons-matter theory

    E-Print Network [OSTI]

    Drukker, Nadav

    2009-01-01T23:59:59.000Z

    We construct the Wilson loop operator of N=6 super Chern-Simons-matter which is invariant under half of the supercharges of the theory and is dual to the simplest macroscopic open string in AdS_4 x CP^3. The Wilson loop couples, in addition to the gauge and scalar fields of the theory, also to the fermions in the bi-fundamental representation of the U(N) x U(M) gauge group. These ingredients are naturally combined into a superconnection whose holonomy gives the Wilson loop, which can be defined for any representation of the supergroup U(N|M). Explicit expressions for loops supported along an infinite straight line and along a circle are presented. Using the localization calculation of Kapustin et al. we show that the circular loop is computed by a supermatrix model and discuss the connection to pure Chern-Simons theory with supergroup U(N|M).

  5. A supermatrix model for N=6 super Chern-Simons-matter theory

    E-Print Network [OSTI]

    Nadav Drukker; Diego Trancanelli

    2009-12-16T23:59:59.000Z

    We construct the Wilson loop operator of N=6 super Chern-Simons-matter which is invariant under half of the supercharges of the theory and is dual to the simplest macroscopic open string in AdS_4 x CP^3. The Wilson loop couples, in addition to the gauge and scalar fields of the theory, also to the fermions in the bi-fundamental representation of the U(N) x U(M) gauge group. These ingredients are naturally combined into a superconnection whose holonomy gives the Wilson loop, which can be defined for any representation of the supergroup U(N|M). Explicit expressions for loops supported along an infinite straight line and along a circle are presented. Using the localization calculation of Kapustin et al. we show that the circular loop is computed by a supermatrix model and discuss the connection to pure Chern-Simons theory with supergroup U(N|M).

  6. Quasi-hole solutions in finite noncommutative Maxwell-Chern-Simons theory

    E-Print Network [OSTI]

    Jules Lambert; M. B. Paranjape

    2007-05-15T23:59:59.000Z

    We study Maxwell-Chern-Simons theory in 2 noncommutative spatial dimensions and 1 temporal dimension. We consider a finite matrix model obtained by adding a linear boundary field which takes into account boundary fluctuations. The pure Chern-Simons has been previously shown to be equivalent to the Laughlin description of the quantum Hall effect. With the addition of the Maxwell term, we find that there exists a rich spectrum of excitations including solitons with nontrivial "magnetic flux" and quasi-holes with nontrivial "charges", which we describe in this article. The magnetic flux corresponds to vorticity in the fluid fluctuations while the charges correspond to sources of fluid fluctuations. We find that the quasi-hole solutions exhibit a gap in the spectrum of allowed charge.

  7. Review of potential technologies for the treatment of Methyl tertiary butyl Ether (MtBE) in drinking water

    SciTech Connect (OSTI)

    Brown, A.; Browne, T.E. [Komex H2O Science, Huntington Beach, CA (United States); Devinny, J.S. [Univ. of Southern California, Los Angeles, CA (United States)] [and others

    1997-12-31T23:59:59.000Z

    At present, the state of knowledge on effective treatment technologies for MtBE in drinking water, and groundwater in general, is limited. Research by others is focusing on the remediation of MtBE close to the point of release. The City of Santa Monica, MWD, Komex and USC are currently conducting research into different technologies that could be used to remove MtBE from drinking water supplies. The objectives of the research are to evaluate different treatment technologies to identify cost-effective and technically feasible alternatives for the removal of MtBE from drinking water. The evaluation is considering moderate to high water flow rates (100 to 2,000+ gpm) and low to moderate MtBE concentrations (<2,000 {mu}g/l). The research program includes four phases: (1) Literature Review; (2) Bench Scale Study; (3) Field Scale Pre-pilot Study; and (4) Summary Evaluation. This paper presents some preliminary information and findings from the first phase of this research - the literature review. The review discusses the chemical properties of MtBE and how they affect remediation and thus, an evaluation of alternative treatment technologies. The review of available literature, and the applicability and limitations of the following technologies are presented in detail.

  8. Secondary oil recovery from selected Carter sandstone oilfields, Black Warrior basin, Alabama. [Annual] yearly report, December 1, 1992--November 30, 1993

    SciTech Connect (OSTI)

    Anderson, J.C.

    1994-03-01T23:59:59.000Z

    In this Class I PON, Anderman/Smith Operating Company is targeting three Carter sandstone oilfields (Black Warrior basin) for secondary recovery. Waterfloods are underway in two of the areas -- Central Bluff and North Fairview units. For the third area, South Bluff, negotiations are underway to unitize the field. Once South Bluff is unitized, waterflooding will commence.

  9. Wilcox sandstone reservoirs in the deep subsurface along the Texas Gulf Coast: their potential for production of geopressured geothermal energy. Report of Investigations No. 117

    SciTech Connect (OSTI)

    Debout, D.G.; Weise, B.R.; Gregory, A.R.; Edwards, M.B.

    1982-01-01T23:59:59.000Z

    Regional studies of the lower Eocene Wilcox Group in Texas were conducted to assess the potential for producing heat energy and solution methane from geopressured fluids in the deep-subsurface growth-faulted zone. However, in addition to assembling the necessary data for the geopressured geothermal project, this study has provided regional information of significance to exploration for other resources such as lignite, uranium, oil, and gas. Because the focus of this study was on the geopressured section, emphasis was placed on correlating and mapping those sandstones and shales occurring deeper than about 10,000 ft. The Wilcox and Midway Groups comprise the oldest thick sandstone/shale sequence of the Tertiary of the Gulf Coast. The Wilcox crops out in a band 10 to 20 mi wide located 100 to 200 mi inland from the present-day coastline. The Wilcox sandstones and shales in the outcrop and updip shallow subsurface were deposited primarily in fluvial environments; downdip in the deep subsurface, on the other hand, the Wilcox sediments were deposited in large deltaic systems, some of which were reworked into barrier-bar and strandplain systems. Growth faults developed within the deltaic systems, where they prograded basinward beyond the older, stable Lower Cretaceous shelf margin onto the less stable basinal muds. Continued displacement along these faults during burial resulted in: (1) entrapment of pore fluids within isolated sandstone and shale sequences, and (2) buildup of pore pressure greater than hydrostatic pressure and development of geopressure.

  10. Characterization of Damage in Sandstones along the Mojave Section of the San Andreas Fault: Implications for the Shallow Extent of Damage

    E-Print Network [OSTI]

    Ben-Zion, Yehuda

    Characterization of Damage in Sandstones along the Mojave Section of the San Andreas Fault: Implications for the Shallow Extent of Damage Generation ORY DOR,1,5 JUDITH S. CHESTER,2 YEHUDA BEN-ZION,1 shallow generation of rock damage during an earthquake rupture, we measure the degree of fracture damage

  11. Diagenesis of sandstones from the Douglas Creek member of the Green River Formation (Eocene) at Red Wash field, Uintay County, Utah

    E-Print Network [OSTI]

    Ray, Earl Scott

    1985-01-01T23:59:59.000Z

    , sandstone and some limestone and dolomite beds. The Garden Creek Member at Red Wash Field is about 550 ft (168 m) thick. The Parachute Creek Member, overlying the Garden Creek, is largely oil shale, gray shale, and limestone and dolomite beds...

  12. String solutions in Chern-Simons-Higgs model coupled to an axion

    E-Print Network [OSTI]

    J. Lopez-Sarrion; E. F. Moreno; F. A. Schaposnik; D. Slobinsky

    2006-03-11T23:59:59.000Z

    We study a d=2+1 dimensional Chern-Simons gauge theory coupled to a Higgs scalar and an axion field, finding the form of the potential that allows the existence of selfdual equations and the corresponding Bogomolny bound for the energy of static configurations. We show that the same conditions allow for the N=2 supersymmetric extension of the model, reobtaining the BPS equations from the supersymmetry requirement. Explicit electrically charged vortex-like solutions to these equations are presented.

  13. Preliminary assessment report for Virginia Army National Guard Army Aviation Support Facility, Richmond International Airport, Installation 51230, Sandston, Virginia

    SciTech Connect (OSTI)

    Dennis, C.B.

    1993-09-01T23:59:59.000Z

    This report presents the results of the preliminary assessment (PA) conducted by Argonne National Laboratory at the Virginia Army National Guard (VaARNG) property in Sandston, Virginia. The Army Aviation Support Facility (AASF) is contiguous with the Richmond International Airport. Preliminary assessments of federal facilities are being conducted to compile the information necessary for completing preremedial activities and to provide a basis for establishing corrective actions in response to releases of hazardous substances. The PA is designed to characterize the site accurately and determine the need for further action by examining site activities, quantities of hazardous substances present, and potential pathways by which contamination could affect public health and the environment. The AASF, originally constructed as an active Air Force interceptor base, provides maintenance support for VaARNG aircraft. Hazardous materials used and stored at the facility include JP-4 jet fuel, diesel fuel, gasoline, liquid propane gas, heating oil, and motor oil.

  14. Application of horizontal drilling in the development of a complex turbidite sandstone reservoir, Elk Hills Field, Kern County, California

    SciTech Connect (OSTI)

    Reid, S.A. (Bechtel Petroleum Operations, Inc., Tupman, CA (USA)); McJannet, G.S. (Dept. of Energy, Tupman, CA (USA)); Hart, O.D. (Chevron Inc., Tupman, CA (USA))

    1990-05-01T23:59:59.000Z

    Horizontal drilling techniques have been used at the Elk Hills field, to more effectively produce the complex 26R reservoir. This Stevens zone reservoir of the Miocene Monterey Formation contains turbid sediments deposited in a deep-sea fan setting and consists of several distinct sandstone layers averaging 150 ft thick and usually separated by mudstone beds. Layers in the reservoir dip as much as 50{degree} southwest. An expanding gas cap makes many vertical wells less favorable to operate. Horizontal completions were thought ideal for the pool because (1) original oil-water contact is level and believed stable, (2) water production is low, (3) a horizontal well provides for a long production life; and (4) several sandstone layers can be produced through one well. For the first well, the plan was to redrill an idle well to horizontal along an arc with a radius of 350 ft. The horizontal section was to be up to 1,000 ft long and extend northeast slightly oblique to dip just above the average oil-water contact. The well was drilled in September 1988, reached horizontal nearly as planned, was completed after perforating 210 ft of oil sand, and produced a daily average of 1,000 bbl oil and 8 bbl of water. However, structural influence was stronger than expected, causing the horizontal drill path to turn directly updip away from the bottom-hole target area. The well also encountered variable oil-water contacts, with more than half the horizontal section possibly water productive. Geologic and drilling data from the first well were used for planning another well. This well was drilled in October 1989, and was highly successful with over 1,000 ft of productive interval.

  15. Characterization and mischaracterization of authigenic magnesium-bearing minerals: Examples from Norphlet Sandstone, Alabama, Florida, and Mississippi

    SciTech Connect (OSTI)

    Kugler, R.L. (Geological Survey of Alabama, Tuscaloosa, AL (United States))

    1993-03-01T23:59:59.000Z

    Jurassic Norphlet sandstones are significant gas, condensate, and carbon dioxide reservoirs in the eastern Gulf Coast region. Diagenetic factors affecting the quality of these reservoirs are variable at microscopic to megascopic scales. Major authigenic components of the reservoirs include quartz, albite, K-feldspar, a variety of carbonate minerals, anhydrite, pyrite, illite, and chlorite; minor components include zeolite, tourmaline, apatite, and anatase. Although the diagenetic character of Norphlet sandstone has been intensely investigated, diagenetic pathways and the origin of porosity remain controversial. Characterization of chemically variable authigenic minerals is crucial to understanding fluid migration pathways and rock-water interactions. Detailed polarized-light and electron microscopy, energy- and wavelength-dispersion X-ray microanalysis, and X-ray diffractometry reveal that common authigenic Mg-bearing minerals in Norphlet reservoirs have been overlooked or improperly chemically characterized. Breunnerite has not been identified by other investigators, although it is abundant in cores from some wells. Authigenic chlorite, which is widespread in offshore reservoirs, commonly has been described as being Fe-rich, whereas electron probe microanalyses indicate that this chlorite is Mg-rich. Qualitative chemical characterization of authigenic minerals commonly is determined by EDX analysis during routine observation of textural relationships with a SEM. This type of analysis typically is performed with little regard for beam-sample-detector geometric relationships and other operational parameters. Peak intensities on EDX spectra collected using a lower electron beam potential (10 kV) more closely reflect proportions of Mg and Fe in breunnerite and chlorite. Thus, SEM operating parameters should be carefully considered, even for qualitative chemical analysis.

  16. Applications of mineral carbonation to geological sequestration of CO2

    SciTech Connect (OSTI)

    O'Connor, William K.; Rush, G.E.

    2005-01-01T23:59:59.000Z

    Geological sequestration of CO2 is a promising near-term sequestration methodology. However, migration of the CO2 beyond the natural reservoir seals could become problematic, thus the identification of means to enhance the natural seals could prove beneficial. Injection of a mineral reactant slurry could provide a means to enhance the natural reservoir seals by supplying the necessary cations for precipitation of mineral carbonates. The subject study evaluates the merit of several mineral slurry injection strategies by conduct of a series of laboratory-scale CO2 flood tests on whole core samples of the Mt. Simon sandstone from the Illinois Basin.

  17. Methyl tertiary butyl ether (MtBE) contamination of the City of Santa Monica drinking water supply

    SciTech Connect (OSTI)

    Brown, A.; Farrow, J.R.C. [Komex H2O Science, Huntington Beach, CA (United States); Rodriguez, R.A. [City of Santa Monica, CA (United States)] [and others

    1997-12-31T23:59:59.000Z

    In the summer of 1996, the City of Santa Monica ceased pumping groundwater from two Well Fields (Charnock and Arcadia) used for public drinking water supply due to persistent and increasing concentrations of MtBE in all seven municipal water supply wells. This lost production accounted for 50% of the City`s total drinking water supply. In late 1996, the City, in cooperation with State and Federal agencies, initiated an investigation of MtBE contamination at the two well fields. The objectives of the investigation were as follows: (1) Review available data on the production, use, chemical characteristics, fate and transport, toxicology, and remediation of MtBE; (2) Identify locations of potential sources of MtBE groundwater contamination at the well fields; (3) Develop an understanding of the hydrologic pathways from the potential sources to the drinking water wells; and (4) Evaluate alternative treatment technologies for the removal of MtBE from drinking water. In addition to a review of available information about MtBE, the investigation included an extensive review of literature and available data relevant to the well fields, including well field production histories, site and regional hydrogeology, all well logs and production in the groundwater basins, general groundwater quality, and the record of MtBE detection. Based upon the review of background information, conceptual hydrogeologic models were developed. A detailed review of agency files for over 45 potential source sites was conducted. The information from this review was summarized, and source site screening and ranking criteria were developed. A field program was conducted at the major well field (Charnock), including soil gas surveys, CPTs, soil borings and well installations, geophysics, and aquifer testing. The field program provided site data which allowed the conceptual hydrogeologic model to be refitted to actual site conditions.

  18. The Investigation on Fibrous Veins and Their Host from Mt. Ida, Ouachita Mountains, Arkansas 

    E-Print Network [OSTI]

    Chung, Jae Won

    2004-09-30T23:59:59.000Z

    of the host is given by: ?* = 3b/(16kBV0B) (2) where b is the radius of rock sphere containing one vein or spherical crystal, ?* is the critical value of surrounding host rock viscosity, k is a constant in kinetic law for precipitation/dissolution... goal to test some of these implications. 7 2. GEOLOGY Samples of fibrous veins were collected from Paleozoic Womble Shale around Mt. Ida, Arkansas (Fig. 2). The study area lies within the Benton Uplift of eastern Arkansas. The Benton Uplift...

  19. Water Sampling At Mt Ranier Area (Frank, 1995) | 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-fTri GlobalJump to: navigation, searchOpen EnergyKauaiMt Ranier Area (Frank,

  20. Water Sampling At Mt St Helens Area (Shevenell & Goff, 1995) | Open Energy

    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-fTri GlobalJump to: navigation, searchOpen EnergyKauaiMt Ranier Area

  1. PHYS 390 Lecture 20 -Reactions III -Thermonuclear processes 20 -1 2001 by David Boal, Simon Fraser University. All rights reserved; further resale or copying is strictly prohibited.

    E-Print Network [OSTI]

    Boal, David

    PHYS 390 Lecture 20 - Reactions III - Thermonuclear processes 20 - 1 © 2001 by David Boal, Simon - Reactions III - Thermonuclear processes What's Important: · energy-dependent cross sections · complete rate 20 - Reactions III - Thermonuclear processes 20 - 2 © 2001 by David Boal, Simon Fraser University

  2. Structural and functional studies of a phosphatidic acid-binding antifungal plant defensin MtDef4: Identification of an RGFRRR motif governing fungal cell entry

    SciTech Connect (OSTI)

    Sagaram, Uma S.; El-Mounadi, Kaoutar; Buchko, Garry W.; Berg, Howard R.; Kaur, Jagdeep; Pandurangi, Raghoottama; Smith, Thomas J.; Shah, Dilip

    2013-12-04T23:59:59.000Z

    A highly conserved plant defensin MtDef4 potently inhibits the growth of a filamentous fungus Fusarium graminearum. MtDef4 is internalized by cells of F. graminearum. To determine its mechanism of fungal cell entry and antifungal action, NMR solution structure of MtDef4 has been determined. The analysis of its structure has revealed a positively charged patch on the surface of the protein consisting of arginine residues in its ?-core signature, a major determinant of the antifungal activity of MtDef4. Here, we report functional analysis of the RGFRRR motif of the ?-core signature of MtDef4. The replacement of RGFRRR to AAAARR or to RGFRAA not only abolishes fungal cell entry but also results in loss of the antifungal activity of MtDef4. MtDef4 binds strongly to phosphatidic acid (PA), a precursor for the biosynthesis of membrane phospholipids and a signaling lipid known to recruit cytosolic proteins to membranes. Mutations of RGFRRR which abolish fungal cell entry of MtDef4 also impair its binding to PA. Our results suggest that RGFRRR motif is a translocation signal for entry of MtDef4 into fungal cells and that this positively charged motif likely mediates interaction of this defensin with PA as part of its antifungal action.

  3. A Review of "The Emblem in Scandinavia and the Baltic" by Simon McKeown, and "Emblematic Paintings from Sweden's Age of Greatness. Nils Bielke and the Neo-Stoic Gallery at Skokloster" by Simon McKeown

    E-Print Network [OSTI]

    Burman, Lars

    2009-01-01T23:59:59.000Z

    reviews 185 The Emblem in Scandinavia and the Baltic. Ed. Simon McKeown and Mara R. Wade. Glasgow: Glasgow Emblem Studies 11, 2006. xxvi + 340 pp. + illus. ? 21.99. Simon McKeown, Emblematic Paintings from Sweden?s Age of Greatness. Nils...- and early eighteenth centuries, but the Danish and Swedish realms were geographically vast, and the rise of Sweden as a European great power extraordinary. The cultural influx in Scandinavia was strong and quick, and it is interesting to reflect on how...

  4. Extremal rotating black holes in Einstein-Maxwell-Chern-Simons theory: radially excited solutions and non-uniqueness

    E-Print Network [OSTI]

    Blazquez-Salcedo, Jose Luis

    2015-01-01T23:59:59.000Z

    We study 5-dimensional black holes in Einstein-Maxwell-Chern-Simons theory with free Chern-Simons coupling parameter. We consider an event horizon with spherical topology, and both angular momenta of equal magnitude. In particular, we study extremal black holes, which can be used to obtain the boundary of the domain of existence. Above a critical value of the Chern-Simons coupling constant we find non-static extremal solutions with vanishing angular momentum. These solutions form a sequence which can be labeled by the node number of the magnetic $U(1)$ potential or the inertial dragging. As the node number increases, their mass converges to the mass of the extremal Reissner-Nordstr\\"om solution. The near-horizon geometry of the solutions of this sequence is the same. In general not all near-horizon solutions are found as global solutions, and we show non-uniqueness between extremal solutions and non-extremal ones.

  5. From Doubled Chern-Simons-Maxwell Lattice Gauge Theory to Extensions of the Toric Code

    E-Print Network [OSTI]

    T. Z. Olesen; N. D. Vlasii; U. -J. Wiese

    2015-03-24T23:59:59.000Z

    We regularize compact and non-compact Abelian Chern-Simons-Maxwell theories on a spatial lattice using the Hamiltonian formulation. We consider a doubled theory with gauge fields living on a lattice and its dual lattice. The Hilbert space of the theory is a product of local Hilbert spaces, each associated with a link and the corresponding dual link. The two electric field operators associated with the link-pair do not commute. In the non-compact case with gauge group $\\mathbb{R}$, each local Hilbert space is analogous to the one of a charged "particle" moving in the link-pair group space $\\mathbb{R}^2$ in a constant "magnetic" background field. In the compact case, the link-pair group space is a torus $U(1)^2$ threaded by $k$ units of quantized "magnetic" flux, with $k$ being the level of the Chern-Simons theory. The holonomies of the torus $U(1)^2$ give rise to two self-adjoint extension parameters, which form two non-dynamical background lattice gauge fields that explicitly break the manifest gauge symmetry from $U(1)$ to $\\mathbb{Z}(k)$. The local Hilbert space of a link-pair then decomposes into representations of a magnetic translation group. In the pure Chern-Simons limit of a large "photon" mass, this results in a $\\mathbb{Z}(k)$-symmetric variant of Kitaev's toric code, self-adjointly extended by the two non-dynamical background lattice gauge fields. Electric charges on the original lattice and on the dual lattice obey mutually anyonic statistics with the statistics angle $\\frac{2 \\pi}{k}$. Non-Abelian $U(k)$ Berry gauge fields that arise from the self-adjoint extension parameters may be interesting in the context of quantum information processing.

  6. Induced Spin from the $ISO(2,1)$ Gauge Theory with the Gravitational Chern-Simons Term

    E-Print Network [OSTI]

    Jin-Ho Cho; Hyuk-jae Lee

    1995-06-07T23:59:59.000Z

    In the context of $ISO(2,1)$ gauge theory, we consider $(2+1)$-dimensional gravity with the gravitational Chern-Simons term (CST). This formulation allows the `exact' solution for the system coupled to a massive point particle (which is not the case in the conventional Chern-Simons gravity). The solution exhibits locally trivial structure even with the CST, although still shows globally nontrivialness such as the conical space and the helical time structure. Since the solution is exact, we can say the CST induces spin even for noncritical case of $\\s+\\al m\

  7. Coleman-Weinberg mechanism in a three-dimensional supersymmetric Chern-Simons-matter model

    SciTech Connect (OSTI)

    Ferrari, A. F. [Centro de Ciencias Naturais e Humanas, Universidade Federal do ABC, Rua Santa Adelia, 166, 09210-170, Santo Andre, SP (Brazil); Gallegos, E. A.; Gomes, M.; Silva, A. J. da [Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, 05315-970, Sao Paulo, SP (Brazil); Lehum, A. C. [Escola de Ciencias e Tecnologia, Universidade Federal do Rio Grande do Norte, Caixa Postal 1524, 59072-970, Natal, RN (Brazil); Nascimento, J. R.; Petrov, A. Yu. [Departamento de Fisica, Universidade Federal da Paraiba, Caixa Postal 5008, 58051-970, Joao Pessoa, Paraiba (Brazil)

    2010-07-15T23:59:59.000Z

    Using the superfield formalism, we study the dynamical breaking of gauge symmetry and superconformal invariance in the N=1 three-dimensional supersymmetric Chern-Simons model, coupled to a complex scalar superfield with a quartic self-coupling. This is an analogue of the conformally invariant Coleman-Weinberg model in four spacetime dimensions. We show that a mass for the gauge and matter superfields are dynamically generated after two-loop corrections to the effective superpotential. We also discuss the N=2 extension of our work, showing that the Coleman-Weinberg mechanism in such model is not feasible, because it is incompatible with perturbation theory.

  8. A core-based assessment of the spatial relationship of small faults associated with a basement-controlled, large normal fault in the Hickory Sandstone 

    E-Print Network [OSTI]

    Graff, Mitchell C

    2006-10-30T23:59:59.000Z

    they were purged from the ?density? measures???.. 3 Descriptive statistics for sample data (n = 692) of displacement, gouge thickness and corresponding log transforms????????????. 4 Summary statistics for ln displacement of all four grain sizes for a... K N 0 1 mile 1 km0 UD D U D U U DD D U U C p gC r hC C C r hC p gC p gC p gC r hC r hC r hC K atemcy Study A r ea U K C r hC p gC Cretaceous Cambrian rocks above Hickory Sandstone Hickory Sandstone T own Mountain...

  9. Conceptual Model Summary Report Simulation Framework for Regional Geologic CO{sub 2} Storage Along Arches Province of Midwestern United States

    SciTech Connect (OSTI)

    None

    2011-06-30T23:59:59.000Z

    A conceptual model was developed for the Arches Province that integrates geologic and hydrologic information on the Eau Claire and Mt. Simon formations into a geocellular model. The conceptual model describes the geologic setting, stratigraphy, geologic structures, hydrologic features, and distribution of key hydraulic parameters. The conceptual model is focused on the Mt. Simon sandstone and Eau Claire formations. The geocellular model depicts the parameters and conditions in a numerical array that may be imported into the numerical simulations of carbon dioxide (CO{sub 2}) storage. Geophysical well logs, rock samples, drilling logs, geotechnical test results, and reservoir tests were evaluated for a 500,000 km{sup 2} study area centered on the Arches Province. The geologic and hydraulic data were integrated into a three-dimensional (3D) grid of porosity and permeability, which are key parameters regarding fluid flow and pressure buildup due to CO{sub 2} injection. Permeability data were corrected in locations where reservoir tests have been performed in Mt. Simon injection wells. The final geocellular model covers an area of 600 km by 600 km centered on the Arches Province. The geocellular model includes a total of 24,500,000 cells representing estimated porosity and permeability distribution. CO{sub 2} injection scenarios were developed for on-site and regional injection fields at rates of 70 to 140 million metric tons per year.

  10. Measuring and predicting reservoir heterogeneity in complex deposystems. The fluvial-deltaic Big Injun Sandstone in West Virginia. Final report, September 20, 1991--October 31, 1993

    SciTech Connect (OSTI)

    Hohn, M.E.; Patchen, D.G.; Heald, M.; Aminian, K.; Donaldson, A.; Shumaker, R.; Wilson, T.

    1994-05-01T23:59:59.000Z

    Non-uniform composition and permeability of a reservoir, commonly referred to as reservoir heterogeneity, is recognized as a major factor in the efficient recovery of oil during primary production and enhanced recovery operations. Heterogeneities are present at various scales and are caused by various factors, including folding and faulting, fractures, diagenesis and depositional environments. Thus, a reservoir consists of a complex flow system, or series of flow systems, dependent on lithology, sandstone genesis, and structural and thermal history. Ultimately, however, fundamental flow units are controlled by the distribution and type of depositional environments. Reservoir heterogeneity is difficult to measure and predict, especially in more complex reservoirs such as fluvial-deltaic sandstones. The Appalachian Oil and Natural Gas Research Consortium (AONGRC), a partnership of Appalachian basin state geological surveys in Kentucky, Ohio, Pennsylvania, and West Virginia, and West Virginia University, studied the Lower Mississippian Big Injun sandstone in West Virginia. The Big Injun research was multidisciplinary and designed to measure and map heterogeneity in existing fields and undrilled areas. The main goal was to develop an understanding of the reservoir sufficient to predict, in a given reservoir, optimum drilling locations versus high-risk locations for infill, outpost, or deeper-pool tests.

  11. From Lorentz-Chern-Simons to Massive Gravity in 2+1 Dimensions

    E-Print Network [OSTI]

    del Pino, Simón; Toloza, Adolfo; Zanelli, Jorge

    2015-01-01T23:59:59.000Z

    We propose a generalization of Chiral Gravity, which follows from considering a Chern-Simons action for the spin connection with anti-symmetric contorsion. The theory corresponds to Topologically Massive Gravity at the chiral point non-minimally coupled to an additional scalar mode that gathers the torsion degree of freedom. In this setup, the effective cosmological constant (the inverse of the curvature radius of maximally symmetric solutions) is either negative or zero, and it enters as an integration constant associated to the value of the contorsion at infinity. We explain how this is not in conflict with the Zamolodchikov's $c$-theorem holding in the dual boundary theory. In fact, we conjecture that the theory formulated about three-dimensional Anti-de Sitter space is dual to a two-dimensional conformal field theory whose right- and left-moving central charges are given by $c_{R}=24k$ and $c_{L}=0$, respectively, being $k$ the level of the Chern-Simons action. We study the classical theory both at the li...

  12. Partition Functions of Superconformal Chern-Simons Theories from Fermi Gas Approach

    E-Print Network [OSTI]

    Sanefumi Moriyama; Tomoki Nosaka

    2014-08-14T23:59:59.000Z

    We study the partition function of three-dimensional ${\\mathcal N}=4$ superconformal Chern-Simons theories of the circular quiver type, which are natural generalizations of the ABJM theory, the worldvolume theory of M2-branes. In the ABJM case, it was known that the perturbative part of the partition function sums up to the Airy function as $Z(N)=e^{A}C^{-1/3}\\mathrm{Ai}[C^{-1/3}(N-B)]$ with coefficients $C$, $B$ and $A$ and that for the non-perturbative part the divergences coming from the coefficients of worldsheet instantons and membrane instantons cancel among themselves. We find that many of the interesting properties in the ABJM theory are extended to the general superconformal Chern-Simons theories. Especially, we find an explicit expression of $B$ for general ${\\mathcal N}=4$ theories, a conjectural form of $A$ for a special class of theories, and cancellation in the non-perturbative coefficients for the simplest theory next to the ABJM theory.

  13. From Doubled Chern-Simons-Maxwell Lattice Gauge Theory to Extensions of the Toric Code

    E-Print Network [OSTI]

    Olesen, T Z; Wiese, U -J

    2015-01-01T23:59:59.000Z

    We regularize compact and non-compact Abelian Chern-Simons-Maxwell theories on a spatial lattice using the Hamiltonian formulation. We consider a doubled theory with gauge fields living on a lattice and its dual lattice. The Hilbert space of the theory is a product of local Hilbert spaces, each associated with a link and the corresponding dual link. The two electric field operators associated with the link-pair do not commute. In the non-compact case with gauge group $\\mathbb{R}$, each local Hilbert space is analogous to the one of a charged "particle" moving in the link-pair group space $\\mathbb{R}^2$ in a constant "magnetic" background field. In the compact case, the link-pair group space is a torus $U(1)^2$ threaded by $k$ units of quantized "magnetic" flux, with $k$ being the level of the Chern-Simons theory. The holonomies of the torus $U(1)^2$ give rise to two self-adjoint extension parameters, which form two non-dynamical background lattice gauge fields that explicitly break the manifest gauge symmetry...

  14. MT1-MMP promotes cell growth and ERK activation through c-Src and paxillin in three-dimensional collagen matrix

    SciTech Connect (OSTI)

    Takino, Takahisa; Tsuge, Hisashi; Ozawa, Terumasa [Department of Molecular Virology and Oncology, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192 (Japan)] [Department of Molecular Virology and Oncology, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192 (Japan); Sato, Hiroshi, E-mail: vhsato@kenroku.kanazawa-u.ac.jp [Department of Molecular Virology and Oncology, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192 (Japan)] [Department of Molecular Virology and Oncology, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192 (Japan)

    2010-06-11T23:59:59.000Z

    Membrane-type 1 matrix metalloproteinase (MT1-MMP) is essential for tumor invasion and growth. We show here that MT1-MMP induces extracellular signal-regulated kinase (ERK) activation in cancer cells cultured in collagen gel, which is indispensable for their proliferation. Inhibition of MT1-MMP by MMP inhibitor or small interfering RNA suppressed activation of focal adhesion kinase (FAK) and ERK in MT1-MMP-expressing cancer cells, which resulted in up-regulation of p21{sup WAF1} and suppression of cell growth in collagen gel. Cell proliferation was also abrogated by the inhibitor against ERK pathway without affecting FAK phosphorylation. MT1-MMP and integrin {alpha}{sub v}{beta}{sub 3} were shown to be involved in c-Src activation, which induced FAK and ERK activation in collagen gel. These MT1-MMP-mediated signal transductions were paxillin dependent, as knockdown of paxillin reduced cell growth and ERK activation, and co-expression of MT1-MMP with paxillin induced ERK activation. The results suggest that MT1-MMP contributes to proliferation of cancer cells in the extracellular matrix by activating ERK through c-Src and paxillin.

  15. Rfam: annotating non-coding RNAs in complete genomes Sam Griffiths-Jones*, Simon Moxon, Mhairi Marshall, Ajay Khanna1

    E-Print Network [OSTI]

    Eddy, Sean

    Rfam: annotating non-coding RNAs in complete genomes Sam Griffiths-Jones*, Simon Moxon, Mhairi-coding RNA families, represented by multiple sequence alignments and profile stochastic context free grammars profile stochastic context free grammars (SCFGs), analogous to profile hidden Markov models (HMMs

  16. Rfam: annotating non-coding RNAs in complete Sam Griffiths-Jones*, Simon Moxon, Mhairi Marshall, Ajay Khanna1

    E-Print Network [OSTI]

    Eddy, Sean

    Rfam: annotating non-coding RNAs in complete genomes Sam Griffiths-Jones*, Simon Moxon, MhairiRNA) families, represented by multiple sequence alignments and profile stochastic context- free grammars. Rfam profile stochastic context-free grammars (SCFGs), analogous to profile hidden Markov models (HMMs

  17. Bayesian networks Applications on Dependability, Risk Analysis and Maintenance G. Medina Oliva, P. Weber, C. Simon, B. Iung

    E-Print Network [OSTI]

    Boyer, Edmond

    . Weber, C. Simon, B. Iung CRAN, Nancy-Université, CNRS, Boulevard des Aiguillettes B.P. 70239 F-54506 Vandoeuvre lès Nancy (e-mail: {gabriela.medina-oliva, benoit.iung}@cran.uhp-nancy.fr,{philippe.weber

  18. EXPERIMENTAL TESTS OF COMPETITIVE MARKETS FOR ELECTRIC POWER Simon Ede, Timothy Mount, William Schulze, Robert Thomas, Ray Zimmerman

    E-Print Network [OSTI]

    CSMAE06 EXPERIMENTAL TESTS OF COMPETITIVE MARKETS FOR ELECTRIC POWER Simon Ede, Timothy Mount@cornell.edu, rjt1@cornell.edu, rz10@cornell.edu Abstract Testing the performance of electricity markets have been shown to be efficient. There is evidence from operating electricity markets that prices can

  19. Synthesis of Polyfluorenes with Pendant Silylcarboranes Yoan C. Simon, Joseph J. Peterson, Christine Mangold, Kenneth R. Carter,* and

    E-Print Network [OSTI]

    Synthesis of Polyfluorenes with Pendant Silylcarboranes Yoan C. Simon, Joseph J. Peterson ReceiVed NoVember 3, 2008 ABSTRACT: The synthesis of a novel silylcarborane-containing fluorene monomer-workers on pyrroles and thiophene has underlined the advantage of introducing carboranes as a way to reinforce

  20. Noncommutative field theory: Nonrelativistic fermionic field coupled to the Chern-Simons field in 2+1 dimensions

    SciTech Connect (OSTI)

    Anacleto, M.A.; Gomes, M.; Silva, A.J. da; Spehler, D. [Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, 05315-970, Sao Paulo, SP (Brazil)

    2005-05-15T23:59:59.000Z

    We study a noncommutative nonrelativistic fermionic field theory in 2+1 dimensions coupled to the Chern-Simons field. We perform a perturbative analysis of the model and show that up to one loop the ultraviolet divergences are canceled and the infrared divergences are eliminated by the noncommutative Pauli term.

  1. EIS-0092: Conversion to Coal, Holyoke Water Power Company, Mt. Tom Generating Station Unit 1 Holyoke, Hampden County, Massachusetts

    Broader source: Energy.gov [DOE]

    The Economic Regulatory Administration prepared this statement to assess the environmental impacts of prohibiting Unit 1 of the Mt. Tom Generation Station Unit 1 from using either natural gas or petroleum products as a primary energy source, which would result in the utility burning low-sulfur coal.

  2. Retreat of Glaciers in Glacier National Park In Glacier National Park (GNP), MT some effects of global

    E-Print Network [OSTI]

    Retreat of Glaciers in Glacier National Park In Glacier National Park (GNP), MT some effects of global climate change are strikingly clear. Glacier recession is underway, and many glaciers have already disappeared. The retreat of these small alpine glaciers reflects changes in recent climate as glaciers respond

  3. Reservoir Characterization of Bridgeport and Cypress Sandstones in Lawrence Field Illinois to Improve Petroleum Recovery by Alkaline-Surfactant-Polymer Flood

    SciTech Connect (OSTI)

    Seyler, Beverly; Grube, John; Huff, Bryan; Webb, Nathan; Damico, James; Blakley, Curt; Madhavan, Vineeth; Johanek, Philip; Frailey, Scott

    2012-12-21T23:59:59.000Z

    Within the Illinois Basin, most of the oilfields are mature and have been extensively waterflooded with water cuts that range up to 99% in many of the larger fields. In order to maximize production of significant remaining mobile oil from these fields, new recovery techniques need to be researched and applied. The purpose of this project was to conduct reservoir characterization studies supporting Alkaline-Surfactant-Polymer Floods in two distinct sandstone reservoirs in Lawrence Field, Lawrence County, Illinois. A project using alkaline-surfactantpolymer (ASP) has been established in the century old Lawrence Field in southeastern Illinois where original oil in place (OOIP) is estimated at over a billion barrels and 400 million barrels have been recovered leaving more than 600 million barrels as an EOR target. Radial core flood analysis using core from the field demonstrated recoveries greater than 20% of OOIP. While the lab results are likely optimistic to actual field performance, the ASP tests indicate that substantial reserves could be recovered even if the field results are 5 to 10% of OOIP. Reservoir characterization is a key factor in the success of any EOR application. Reservoirs within the Illinois Basin are frequently characterized as being highly compartmentalized resulting in multiple flow unit configurations. The research conducted on Lawrence Field focused on characteristics that define reservoir compartmentalization in order to delineate preferred target areas so that the chemical flood can be designed and implemented for the greatest recovery potential. Along with traditional facies mapping, core analyses and petrographic analyses, conceptual geological models were constructed and used to develop 3D geocellular models, a valuable tool for visualizing reservoir architecture and also a prerequisite for reservoir simulation modeling. Cores were described and potential permeability barriers were correlated using geophysical logs. Petrographic analyses were used to better understand porosity and permeability trends in the region and to characterize barriers and define flow units. Diagenetic alterations that impact porosity and permeability include development of quartz overgrowths, sutured quartz grains, dissolution of feldspar grains, formation of clay mineral coatings on grains, and calcite cementation. Many of these alterations are controlled by facies. Mapping efforts identified distinct flow units in the northern part of the field showing that the Pennsylvanian Bridgeport consists of a series of thick incised channel fill sequences. The sandstones are about 75-150 feet thick and typically consist of medium grained and poorly sorted fluvial to distributary channel fill deposits at the base. The sandstones become indistinctly bedded distributary channel deposits in the main part of the reservoir before fining upwards and becoming more tidally influenced near their top. These channel deposits have core permeabilities ranging from 20 md to well over 1000 md. The tidally influenced deposits are more compartmentalized compared to the thicker and more continuous basal fluvial deposits. Fine grained sandstones that are laterally equivalent to the thicker channel type deposits have permeabilities rarely reaching above 250 md. Most of the unrecovered oil in Lawrence Field is contained in Pennsylvanian Age Bridgeport sandstones and Mississippian Age Cypress sandstones. These reservoirs are highly complex and compartmentalized. Detailed reservoir characterization including the development of 3-D geologic and geocellular models of target areas in the field were completed to identify areas with the best potential to recover remaining reserves including unswept and by-passed oil. This project consisted of tasks designed to compile, interpret, and analyze the data required to conduct reservoir characterization for the Bridgeport and Cypress sandstones in pilot areas in anticipation of expanded implementation of ASP flooding in Lawrence Field. Geologic and geocellular modeling needed for reservoir characterization and res

  4. Depositional texture-dependent and independent diagenetic control of petrophysical properties, Norphlet sandstone, onshore and offshore Alabama

    SciTech Connect (OSTI)

    Kugler, R.I. (Geological Survey of Alabama, Tuscaloosa, AL (United States))

    1993-09-01T23:59:59.000Z

    Diagenetic factors influencing reservoir heterogeneity vary significantly throughout the region of Norphlet hydrocarbon production. Distribution of some diagenetic components in these eolian reservoirs is controlled by depositional texture. The distribution of these diagenetic components, which create local of widespread barriers and baffles to fluid flow, can be determined by depositional modeling. However, the distribution of other diagenetic components in Norphlet reservoirs, including quartz, clay minerals and pyrobitumen, is independent of depositional texture and cannot be determined by similar modeling. Factors controlling the distribution of texture-independent diagenetic components include the availability of chemical constituents from external sources, past and present positions of hydrocarbon-water contacts, and the time available for diagenetic reactions to proceed. In onshore fields, such as Hatter's Pond field, the position of fluid contacts influences reservoir quality. Permeability is highest above the hydrocarbon-water contact where authigenic illite is less abundant. The opposite relationship occurs in offshore fields in Alabama coastal waters and Federal outer continental shelf areas where sandstone below paleo-hydrocarbon-water contacts or present hydrocarbon-water contacts has the highest reservoir quality. Up to four diagenetic zones may occur stratigraphically. In descending order they are (1) the dominantly quartz-cemented tight zone at the top of the Norphlet; (2) an interval above palo-fluid contacts or present fluid contacts in which pyrobitumen grain coast reduce pore volume and constrict pore throats; (3) an interval between paleo-fluid contacts or present fluid contacts that lacks pyrobitumen and has the highest reservoir quality; and (4) an interval similar to interval 3 that lies below the present gas-water contact. Delineation of controls on the distribution of these intervals is critical to evaluating gas reserves in offshore areas.

  5. Maxwell-Chern-Simons vortices in a CPT-odd Lorentz-violating Higgs Electrodynamics

    E-Print Network [OSTI]

    R. Casana; M. M. Ferreira Jr.; E. da Hora; A. B. F. Neves

    2014-04-18T23:59:59.000Z

    We have studied BPS vortices in a CPT-odd and Lorentz-violating Maxwell-Chern-Simons-Higgs (MCSH) electrodynamics attained from the dimensional reduction of the Carroll-Field-Jackiw-Higgs model. The Lorentz-violating parameter induces a pronounced behavior at origin (for the magnetic/electric fields and energy density) which is absent in the MCSH vortices. For some combination of the Lorentz-violating coefficients there always exist a sufficiently large winding number $n_{0}$ such that for all $% |n|\\geq |n_{0}|$ the magnetic field flips its signal, yielding two well defined regions with opposite magnetic flux. However, the total magnetic flux remains quantized and proportional to the winding number.

  6. Large N non-perturbative effects in $\\mathcal{N}=4$ superconformal Chern-Simons theories

    E-Print Network [OSTI]

    Yasuyuki Hatsuda; Masazumi Honda; Kazumi Okuyama

    2015-05-26T23:59:59.000Z

    We investigate the large $N$ instanton effects of partition functions in a class of $\\mathcal{N}=4$ circular quiver Chern-Simons theories on a three-sphere. Our analysis is based on the supersymmetry localization and the Fermi-gas formalism. The resulting matrix model can be regarded as a two-parameter deformation of the ABJM matrix model, and has richer non-perturbative structures. Based on a systematic semi-classical analysis, we find analytic expressions of membrane instanton corrections. We also exactly compute the partition function for various cases and find some exact forms of worldsheet instanton corrections, which appear as quantum mechanical non-perturbative corrections in the Fermi-gas system.

  7. Einstein-Cartan formulation of Chern-Simons Lorentz-violating Gravity

    E-Print Network [OSTI]

    Marcelo Botta Cantcheff

    2008-07-18T23:59:59.000Z

    We consider a modification of the standard Einstein theory in four dimensions, alternative to R. Jackiw and S.-Y. Pi, Phys. Rev. D 68, 104012 (2003), since it is based on the first-order (Einstein-Cartan) approach to General Relativity, whose gauge structure is manifest. This is done by introducing an additional topological term in the action which becomes a Lorentz-violating term by virtue of the dependence of the coupling on the space-time point. We obtain a condition on the solutions of the Einstein equations, such that they persist in the deformed theory, and show that the solutions remarkably correspond to the classical solutions of a collection of independent 2+1-d (topological) Chern-Simons gravities. Finally, we study the relation with the standard second-order approach and argue that they both coincide to leading order in the modulus of the Lorentz-violating vector field.

  8. Study of Yang–Mills–Chern–Simons theory in presence of the Gribov horizon

    SciTech Connect (OSTI)

    Canfora, Fabrizio, E-mail: canfora@cecs.cl [Centro de Estudios Cientificos (CECs), Valdivia (Chile); Universidad Andres Bello, Av. Republica 440, Santiago (Chile); Gomez, Arturo, E-mail: arturo.gomez@proyectos.uai.cl [Departamento de Ciencias, Facultad de Artes Liberales y Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Viña del Mar. (Chile); Sorella, Silvio Paolo, E-mail: sorella@uerj.br [UERJ, Universidade do Estado do Rio de Janeiro (UERJ), Instituto de Física Teórica, Rua São Francisco Xavier 524, 20550-013, Maracaná, Rio de Janeiro (Brazil); Vercauteren, David, E-mail: vercauteren.uerj@gmail.com [UERJ, Universidade do Estado do Rio de Janeiro (UERJ), Instituto de Física Teórica, Rua São Francisco Xavier 524, 20550-013, Maracaná, Rio de Janeiro (Brazil)

    2014-06-15T23:59:59.000Z

    The two-point gauge correlation function in Yang–Mills–Chern–Simons theory in three dimensional Euclidean space is analysed by taking into account the non-perturbative effects of the Gribov horizon. In this way, we are able to describe the confinement and de-confinement regimes, which naturally depend on the topological mass and on the gauge coupling constant of the theory. -- Highlights: •We implement the Gribov quantization to the Topologically massive Yang–Mills theory. •We find a modified propagator at strong coupling by the Gribov horizon. •The gauge propagator depends on the topological mass and the coupling constant. •By studying the gauge propagator we describe the confined–deconfined regimes.

  9. Free Energy of D_n Quiver Chern-Simons Theories

    E-Print Network [OSTI]

    P. Marcos Crichigno; Christopher P. Herzog; Dharmesh Jain

    2012-11-06T23:59:59.000Z

    We apply the matrix model of Kapustin, Willett and Yaakov to compute the free energy of N=3 Chern-Simons matter theories with D_n quivers in the large N limit. We conjecture a general expression for the free energy that is explicitly invariant under Seiberg duality and show that it can be interpreted as a sum over certain graphs known as signed graphs. Through the AdS/CFT correspondence, this leads to a prediction for the volume of certain tri-Sasaki Einstein manifolds. We also study the unfolding procedure, which relates these D_n quivers to A_{2n-5} quivers. Furthermore, we consider the addition of massive fundamental flavor fields, verifying that integrating these out decreases the free energy in accordance with the F-theorem.

  10. From simplicial Chern-Simons theory to the shadow invariant II

    E-Print Network [OSTI]

    Atle Hahn

    2015-01-18T23:59:59.000Z

    This is the second of a series of papers in which we introduce and study a rigorous "simplicial" realization of the non-Abelian Chern-Simons path integral for manifolds M of the form M = Sigma x S1 and arbitrary simply-connected compact structure groups G. More precisely, we introduce, for general links L in M, a rigorous simplicial version WLO_{rig}(L) of the corresponding Wilson loop observable WLO(L) in the so-called "torus gauge" by Blau and Thompson (Nucl. Phys. B408(1):345-390, 1993). For a simple class of links L we then evaluate WLO_{rig}(L) explicitly in a non-perturbative way, finding agreement with Turaev's shadow invariant |L|.

  11. From simplicial Chern-Simons theory to the shadow invariant I

    E-Print Network [OSTI]

    Atle Hahn

    2015-01-18T23:59:59.000Z

    This is the first of a series of papers in which we introduce and study a rigorous "simplicial" realization of the non-Abelian Chern-Simons path integral for manifolds M of the form M = Sigma x S1 and arbitrary simply-connected compact structure groups G. More precisely, we introduce, for general links L in M, a rigorous simplicial version WLO_{rig}(L) of the corresponding Wilson loop observable WLO(L) in the so-called "torus gauge" by Blau and Thompson (Nucl. Phys. B408(1):345-390, 1993). For a simple class of links L we then evaluate WLO_{rig}(L) explicitly in a non-perturbative way, finding agreement with Turaev's shadow invariant |L|.

  12. Comments on absorption cross section for Chern-Simons black holes in five dimensions

    E-Print Network [OSTI]

    P. A. González; Joel Saavedra

    2011-05-12T23:59:59.000Z

    In this paper we study the effects of black hole mass on the absorption cross section for a massive scalar field propagating in a 5-dimensional topological Chern-Simons black hole at the low-frequency limit. We consider the two branches of black hole solutions $(\\alpha=\\pm 1)$ and we show that, if the mass of black hole increase the absorption cross section decreases at the zero-frequency limit for the branch $\\alpha=-1$ and for the other branch, $\\alpha=1$, the behavior is opposite, if the black hole mass increase the absorption cross section increases. Also we find that beyond a certain frequency value, the mass black hole does not affect the absorption cross section.

  13. Geological and petrophysical characterization of the Ferron Sandstone for 3-D simulation of a fluvial-deltaic reservoir. Annual report, October 1, 1995--September 30, 1996

    SciTech Connect (OSTI)

    Chidsey, T.C. Jr.

    1997-05-01T23:59:59.000Z

    The objective of the Ferron Sandstone project is to develop a comprehensive, interdisciplinary, quantitative characterization of a fluvial-deltaic reservoir to allow realistic inter-well and reservoir-scale models to be developed for improved oil-field development in similar reservoirs world-wide. Quantitative geological and petrophysical information on the Cretaceous Ferron Sandstone in east-central Utah was collected. Both new and existing data is being integrated into a three-dimensional model of spatial variations in porosity, storativity, and tensorial rock permeability at a scale appropriate for inter-well to regional-scale reservoir simulation. Simulation results could improve reservoir management through proper infill and extension drilling strategies, reduction of economic risks, increased recovery from existing oil fields, and more reliable reserve calculations. Transfer of the project results to the petroleum industry is an integral component of the project. This report covers research activities for fiscal year 1995-96, the third year of the project. Most work consisted of interpreting the large quantity of data collected over two field seasons. The project is divided into four tasks: (1) regional stratigraphic analysis, (2) case studies, (3) reservoirs models, and (4) field-scale evaluation of exploration strategies. The primary objective of the regional stratigraphic analysis is to provide a more detailed interpretation of the stratigraphy and gross reservoir characteristics of the Ferron Sandstone as exposed in outcrop. The primary objective of the case-studies work is to develop a detailed geological and petrophysical characterization, at well-sweep scale or smaller, of the primary reservoir lithofacies typically found in a fluvial-dominated deltaic reservoir.

  14. Four-year prospective study of the respiratory effects of volcanic ash from Mt. St. Helens

    SciTech Connect (OSTI)

    Buist, A.S.; Vollmer, W.M.; Johnson, L.R.; Bernstein, R.S.; McCamant, L.E.

    1986-04-01T23:59:59.000Z

    This report describes the 4-yr follow-up of 712 loggers exposed over an extended period to varying levels of fresh volcanic ash from the 1980 eruptions of Mt. St. Helens. Concerns related to the irritant effect the ash might have on the airways and also to its fibrogenic potential if exposures were intense and continued over many years. Our subjects were divided into 3 groups: high, low, and no exposure. Baseline testing was begun in June 1980, 1 month after the major eruption, and follow-up testing continued on an annual basis through 1984; 88% of the loggers have been tested at least 3 times. Analysis of lung function data showed that a significant, exposure-related decline in FEV1 occurred during the first year after the eruption. The decline was short-lived, however, and by 1984 the differences between exposure groups were no longer significant. Self-reported symptoms of cough, phlegm, and wheeze showed a similar pattern. No ash-related changes were seen in chest roentgenograms taken in 1980 and in 1984. Our findings are consistent with the hypothesis that the inhaled ash caused mucus hypersecretion and/or airway inflammation that reversed when the exposure levels decreased. The ash levels to which the loggers were exposed were low compared with permissible occupational levels for nuisance dusts, but generally higher than the total suspended particulate levels permissible in ambient air.

  15. Sequence-Stratigraphic Analysis of the Rollins and the Cozzette Sandstone Members, the Upper Cretaceous Mount Garfield Formation of the Piceance Basin, Colorado.

    E-Print Network [OSTI]

    Ouaichouche, Fatma Zahra

    2011-08-31T23:59:59.000Z

    at the top. Both siltstone and mudstone are locally bioturbated. Siltstone beds (~20 cm) are sharp-based, light brown to gray in color, and are interbeded with mudstone beds. Coal with siltstone Trough-cross bedding Laminae/flaser beddin g/burrows 10 m10... it occurs at the top of the Rollins Sandstone Member. It is laterally continuous, distinctively white colored, and 22 capped with a coal bed (Figure 9). This unit is composed of six subunits arranged in an upward-coarsening trend and is described...

  16. Development of CO2 measurement system in a remote area under harsh observation environment -a case of Mt. Fuji

    E-Print Network [OSTI]

    ) GlassBottle 7/27 11007/27 1100 7/30 11007/30 1100 8/12 17008/12 1700 Measurement; a case of Mt. Fuji summer start at 3,9,15,21(JST) once / day starting at 15:00 (from 16/08/2009) (Glass bottle sampling (1L JMA facilities. We appreciate for their help with the glass bottle sampling and our activities

  17. Assignment 4 BS4a Actuarial Science Oxford MT 2011 IX A.4 Inflation, taxation and project appraisal

    E-Print Network [OSTI]

    Winkel, Matthias

    Assignment 4 ­ BS4a Actuarial Science ­ Oxford MT 2011 IX A.4 Inflation, taxation and project are indexed by reference to the value of a retail price index with a time lag of 8 months. The retail price index value in September 1996 was Q(-8/12) = 200 and in March 1997 was Q(-2/12) = 206. The issue price

  18. 1985/1986 SOMED (School of Mines and Energy Development) project: The effect of temperature, fluid composition, and flow rate on sandstones: implications for enhanced oil recovery methods: Final report

    SciTech Connect (OSTI)

    Donahoe, R.J.

    1986-09-01T23:59:59.000Z

    A low-temperature hydrothermal flow-through study was conducted experimentally examine fluid/rock interactions brought about in sandstones as a result of fluid injection enhanced oil recovery (EOR) methods. Such studies will eventually enable the development of a predictive model for fluid injection EOR methods. The design of the low-temperature hydrothermal flow-through system allows the accurate control of fluid flow rate (0.002-10 ml/min), temperature (0 to 300/sup 0/C) and pressure (1 to 500 bar) while flowing fluids through disaggregated solid samples. Samples of St. Peter Sandstone and two different sandstones of the Norphlet Formation from southern Alabama were interacted with distilled, deionized water and a 1% HC1 solution at 250/sup 0/C, 300 bar and 0.1 or 0.5 ml/min fluid flow rate. Solids were analyzed by x-ray powder diffraction and scanning electron microscopy. Fluid samples were analyzed by atomic absorption spectrophotometry and combination pH electrode. A variety of processes which occur in sandstones subjected to fluid injection EOR methods were documented experimentally. Processes damaging to reservoir permeability included iron fouling, silica fouling, migration of clay fines, and precipitation of other secondary phases. Processes resulting in reservoir stimulation involved the dissolution of sandstone framework and/or authigenic mineral constituents. The most successful fluid injection stimulation can be expected for arkosic sandstones containing high percentages of K-feldspar and illite relative to kaolinite, chlorite and smectite, using dilute HCl injection solutions and high fluid flow rates. Fluid chemical data indicate that equilibrium between the solid and injection fluid is not approached for any of the experiments. Therefore, it does not appear that chemical equilibrium computer programs can be used to model these low-temperature reactions. 12 refs., 11 figs., 4 tabs.

  19. Digenetic Changes in Macro- to Nano-Scale Porosity in the St. Peter Sandstone:L An (Ultra) Small Angle Neutron Scattering and Backscattered Electron Imagining Analysis

    SciTech Connect (OSTI)

    Anovitz, Lawrence {Larry} M [ORNL; Cole, David [Ohio State University; Rother, Gernot [ORNL; Allard Jr, Lawrence Frederick [ORNL; Jackson, Andrew [NIST Center for Neutron Research (NCRN), Gaithersburg, MD; Littrell, Ken [ORNL

    2013-01-01T23:59:59.000Z

    Small- and Ultra-Small Angle Neutron Scattering (SANS and USANS) provide powerful tools for quantitative analysis of porous rocks, yielding bulk statistical information over a wide range of length scales. This study utilized (U)SANS to characterize shallowly buried quartz arenites from the St. Peter Sandstone. Backscattered electron imaging was also used to extend the data to larger scales. These samples contain significant volumes of large-scale porosity, modified by quartz overgrowths, and neutron scattering results show significant sub-micron porosity. While previous scattering data from sandstones suggest scattering is dominated by surface fractal behavior over many orders of magnitude, careful analysis of our data shows both fractal and pseudo-fractal behavior. The scattering curves are composed of subtle steps, modeled as polydispersed assemblages of pores with log-normal distributions. However, in some samples an additional surface-fractal overprint is present, while in others there is no such structure, and scattering can be explained by summation of non-fractal structures. Combined with our work on other rock-types, these data suggest that microporosity is more prevalent, and may play a much more important role than previously thought in fluid/rock interactions.

  20. Investigation of exfoliation joints in Navajo sandstone at the Zion National Park and in granite at the Yosemite National Park by tectonofractographic techniques

    SciTech Connect (OSTI)

    Bahat, D.; Grossenbacher, K.; Karasaki, K.

    1995-04-01T23:59:59.000Z

    Tectonofractographic techniques have been applied to the study of joint exfoliation in the Navajo sandstone at Zion National Park and in the granite at Yosemite National Park. New types of fracture surface morphologies have been observed which enabled the discerning of incipient joints and consequent fracture growth in these rocks. Incipient jointing in the sandstone is mostly manifested by elliptical and circular fractures (meters to tens meters across) initiating from independent origins. They interfere with each other and grow to larger circular fractures producing exfoliation surfaces up to hundreds of meters across. Less frequently, series of large concentric undulations demonstrate the propagation of a large fracture front producing exfoliation from an individual origin. One such fracture front reveals refraction of undulations at a layer boundary. Certain en echelon fringes surround the joint mirror plane with well defined rims of en echelons and hackles which enable the determination of the tensile fracture stress, {sigma}f. Arches in Zion National Park are ubiquitous in shape and size, revealing stages in their evolution by a mechanical process, which was associated with exfoliation, but independent of local faulting. Exfoliation and arching mostly occurred on vertical surfaces of N-NNW and NE sets of prominent joints, but there are also deviations from this general trend. In Yosemite National Park large exfoliations (hundreds of meters in size) developed on the El Capitan cliff by the interaction and merging of many previous smaller incipient joints that vary in size from meters to tens of meter.

  1. Revitalizing a mature oil play: Strategies for finding and producing unrecovered oil in Frio Fluvial-Deltaic Sandstone Reservoirs of South Texas

    SciTech Connect (OSTI)

    McRae, L.E.; Holtz, M.H.; Knox, P.R.

    1995-07-01T23:59:59.000Z

    The Frio Fluvial-Deltaic Sandstone Play of South Texas is one example of a mature play where reservoirs are being abandoned at high rates, potentially leaving behind significant unrecovered resources in untapped and incompletely drained reservoirs. Nearly 1 billion barrels of oil have been produced from Frio reservoirs since the 1940`s, yet more than 1.6 BSTB of unrecovered mobile oil is estimated to remain in the play. Frio reservoirs of the South Texas Gulf Coast are being studied to better characterize interwell stratigraphic heterogeneity in fluvial-deltaic depositional systems and determine controls on locations and volumes of unrecovered oil. Engineering data from fields throughout the play trend were evaluated to characterize variability exhibited by these heterogeneous reservoirs and were used as the basis for resource calculations to demonstrate a large additional oil potential remaining within the play. Study areas within two separate fields have been selected in which to apply advanced reservoir characterization techniques. Stratigraphic log correlations, reservoir mapping, core analyses, and evaluation of production data from each field study area have been used to characterize reservoir variability present within a single field. Differences in sandstone depositional styles and production behavior were assessed to identify zones with significant stratigraphic heterogeneity and a high potential for containing unproduced oil. Detailed studies of selected reservoir zones within these two fields are currently in progress.

  2. Geological and petrophysical characterization of the ferron sandstone for 3-D simulation of a fluvial-deltaic reservoir. Annual report, October 1, 1994--September 30, 1995

    SciTech Connect (OSTI)

    Chidsey, T.C. Jr.; Allison, M.L.

    1996-05-01T23:59:59.000Z

    The objective of the Ferron Sandstone project is to develop a comprehensive, interdisciplinary, quantitative characterization of a fluvial-deltaic reservoir to allow realistic interwell and reservoir-scale models to be developed for improved oil-field development in similar reservoirs world-wide. Quantitative geological and petrophysical information on the Cretaceous Ferron Sandstone in east-central Utah was collected. Both new and existing data is being integrated into a three-dimensional model of spatial variations in porosity, storativity, and tensorial rock permeability at a scale appropriate for inter-well to regional-scale reservoir simulation. Simulation results could improve reservoir management through proper infill and extension drilling strategies, reduction of economic risks, increased recovery from existing oil fields, and more reliable reserve calculations. Transfer of the project results to the petroleum industry is an integral component of the project. This report covers research activities for fiscal year 1994-95, the second year of the project. Most work consisted of developing field methods and collecting large quantities of existing and new data. We also continued to develop preliminary regional and case-study area interpretations. The project is divided into four tasks: (1) regional stratigraphic analysis, (2) case studies, (3) reservoirs models, and (4) field-scale evaluation of exploration strategies.

  3. Geological and petrophysical characterization of the Ferron Sandstone for 3-D simulation of a fluvial-deltaic reservoir. Annual report, September 29, 1993--September 29, 1994

    SciTech Connect (OSTI)

    Allison, M.

    1995-07-01T23:59:59.000Z

    The objective of the Ferron Sandstone project is to develop a comprehensive, interdisciplinary, quantitative characterization of a fluvial-deltaic reservoir to allow realistic inter-well and reservoir-scale models to be developed for improved oil-field development in similar reservoirs world-wide. Quantitative geological and petrophysical information on the Cretaceous Ferron Sandstone in east-central Utah will be collected. Both new and existing data will be integrated into a three-dimensional model of spatial variations in porosity, storativity, and tensorial rock permeability at a scale appropriate for inter-well to regional-scale reservoir simulation. Simulation results could improve reservoir management through proper infill and extension drilling strategies, reduction of economic risks, increased recovery from existing oil fields, and more reliable reserve calculations. Transfer of the project results to the petroleum industry is an integral component of the project. This report covers research activities for fiscal year 1993-94, the first year of the project. Most work consisted of developing field methods and collecting large quantities of existing and new data. We also developed preliminary regional and case-study area interpretations. The project is divided into four tasks: (1) regional stratigraphic analysis, (2) case studies, (3) development of reservoirs models, and (4) field-scale evaluation of exploration strategies.

  4. Dark Matter Particle Spectroscopy at the LHC: Generalizing M(T2) to Asymmetric Event Topologies

    SciTech Connect (OSTI)

    Konar, Partha; /Florida U.; Kong, Kyoungchul; /SLAC; Matchev, Konstantin T.; Park, Myeonghun; /Florida U.; ,

    2012-04-03T23:59:59.000Z

    We consider SUSY-like missing energy events at hadron colliders and critically examine the common assumption that the missing energy is the result of two identical missing particles. In order to experimentally test this hypothesis, we generalize the subsystem M{sub T2} variable to the case of asymmetric event topologies, where the two SUSY decay chains terminate in different 'children' particles. In this more general approach, the endpoint M{sub T2(max)} of the M{sub T2} distribution now gives the mass {tilde M}p({tilde M}{sub c}{sup (a)}, {tilde M}{sub c}{sup (b)}) of the parent particles as a function of two input children masses {tilde M}{sub c}{sup (a)} and {tilde M}{sub c}{sup (b)}. We propose two methods for an independent determination of the individual children masses M{sub c}{sup (a)} and M{sub c}{sup (b)}. First, in the presence of upstream transverse momentum PUTM the corresponding function {tilde M}p({tilde M}{sub c}{sup (a)}, {tilde M}{sub c}{sup (b)}, P{sub UTM}) is independent of P{sub UTM} at precisely the right values of the children masses. Second, the previously discussed MT2 'kink' is now generalized to a 'ridge' on the 2-dimensional surface {tilde M}p({tilde M}{sub c}{sup (a)}, {tilde M}{sub c}{sup (b)}). As we show in several examples, quite often there is a special point along that ridge which marks the true values of the children masses. Our results allow collider experiments to probe a multi-component dark matter sector directly and without any theoretical prejudice.

  5. Uranium hydrogeochemical and stream-sediment reconnaissance of the Mt. Michelson NTMS quadrangle, Alaska

    SciTech Connect (OSTI)

    Zinkl, R.J.; Shettel, D.L. Jr.; Langfeldt, S.L.; Hardy, L.C.; D'Andrea, R.F. Jr. (comps.) [comps.

    1982-04-01T23:59:59.000Z

    This report presents results of a Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) of the Mt. Michelson NTMS quadrangle, Alaska. In addition to this abbreviated data release, more complete data are available to the public in machine-readable form. These machine-readable data, as well as quarterly or semiannual program progress reports containing further information on the HSSR program in general, or on the Los Alamos National Laboratory (LANL) portion of the program in particular, are available from DOE's Technical Library at its Grand Junction Area Office. Presented in this data release are location data, field analyses, and laboratory analyses of several different sample media. For the sake of brevity, many field site observations have not been included in this volume; these data are, however, available on the magnetic tape. Appendices A and B describe the sample media and summarize the analytical results for each medium. The data have been subdivided by one of the Los Alamos National Laboratory sorting programs of Zinkl and others (1981a) into groups of stream-sediment and lake-sediment samples. For each group which contains a sufficient number of observations, statistical tables, tables of raw data, and 1:1,000,000 scale maps of pertinent elements have been included in this report. Also included are maps showing results of multivariate statistical analyses. Information on the field and analytical procedures used by the Los Alamos National Laboratory during sample collection and analysis may be found in any HSSR data release prepared by the Laboratory and will not be included in this report.

  6. Silurian "Clinton" Sandstone Reservoir Characterization for Evaluation of CO2-EOR Potential in the East Canton Oil Field, Ohio

    SciTech Connect (OSTI)

    Riley, Ronald; Wicks, John; Perry, Christopher

    2009-12-30T23:59:59.000Z

    The purpose of this study was to evaluate the efficacy of using CO2-enhanced oil recovery (EOR) in the East Canton oil field (ECOF). Discovered in 1947, the ECOF in northeastern Ohio has produced approximately 95 million barrels (MMbbl) of oil from the Silurian “Clinton” sandstone. The original oil-in-place (OOIP) for this field was approximately 1.5 billion bbl and this study estimates by modeling known reservoir parameters, that between 76 and 279 MMbbl of additional oil could be produced through secondary recovery in this field, depending on the fluid and formation response to CO2 injection. A CO2 cyclic test (“Huff-n-Puff”) was conducted on a well in Stark County to test the injectivity in a “Clinton”-producing oil well in the ECOF and estimate the dispersion or potential breakthrough of the CO2 to surrounding wells. Eighty-one tons of CO2 (1.39 MMCF) were injected over a 20-hour period, after which the well was shut in for a 32-day “soak” period before production was resumed. Results demonstrated injection rates of 1.67 MMCF of gas per day, which was much higher than anticipated and no CO2 was detected in gas samples taken from eight immediately offsetting observation wells. All data collected during this test was analyzed, interpreted, and incorporated into the reservoir characterization study and used to develop the geologic model. The geologic model was used as input into a reservoir simulation performed by Fekete Associates, Inc., to estimate the behavior of reservoir fluids when large quantities of CO2 are injected into the “Clinton” sandstone. Results strongly suggest that the majority of the injected CO2 entered the matrix porosity of the reservoir pay zones, where it diffused into the oil. Evidence includes: (A) the volume of injected CO2 greatly exceeded the estimated capacity of the hydraulic fracture and natural fractures; (B) there was a gradual injection and pressure rate build-up during the test; (C) there was a subsequent, gradual flashout of the CO2 within the reservoir during the ensuing monitored production period; and (D) a large amount of CO2 continually off-gassed from wellhead oil samples collected as late as 3½ months after injection. After the test well was returned to production, it produced 174 bbl of oil during a 60-day period (September 22 to November 21, 2008), which represents an estimated 58 percent increase in incremental oil production over preinjection estimates of production under normal, conditions. The geologic model was used in a reservoir simulation model for a 700-acre model area and to design a pilot to test the model. The model was designed to achieve a 1-year response time and a five-year simulation period. The reservoir simulation modeling indicated that the injection wells could enhance oil production and lead to an additional 20 percent recovery in the pilot area over a five-year period. The base case estimated that by injecting 500 MCF per day of CO2 into each of the four corner wells, 26,000 STBO would be produced by the central producer over the five-year period. This would compare to 3,000 STBO if a new well were drilled without the benefit of CO2 injection. This study has added significant knowledge to the reservoir characterization of the “Clinton” in the ECOF and succeeded in identifying a range on CO2-EOR potential. However, additional data on fluid properties (PVT and swelling test), fractures (oriented core and microseis), and reservoir characteristics (relative permeability, capillary pressure, and wet ability) are needed to further narrow the uncertainties and refine the reservoir model and simulation. After collection of this data and refinement of the model and simulation, it is recommended that a larger scale cyclic- CO2 injection test be conducted to better determine the efficacy of CO2-EOR in the “Clinton” reservoir in the ECOF.

  7. Silurian "Clinton" Sandstone Reservoir Characterization for Evaluation of CO2-EOR Potential in the East Canton Oil Field, Ohio

    SciTech Connect (OSTI)

    Ronald Riley; John Wicks; Christopher Perry

    2009-12-30T23:59:59.000Z

    The purpose of this study was to evaluate the efficacy of using CO2-enhanced oil recovery (EOR) in the East Canton oil field (ECOF). Discovered in 1947, the ECOF in northeastern Ohio has produced approximately 95 million barrels (MMbbl) of oil from the Silurian 'Clinton' sandstone. The original oil-in-place (OOIP) for this field was approximately 1.5 billion bbl and this study estimates by modeling known reservoir parameters, that between 76 and 279 MMbbl of additional oil could be produced through secondary recovery in this field, depending on the fluid and formation response to CO2 injection. A CO2 cyclic test ('Huff-n-Puff') was conducted on a well in Stark County to test the injectivity in a 'Clinton'-producing oil well in the ECOF and estimate the dispersion or potential breakthrough of the CO2 to surrounding wells. Eighty-one tons of CO2 (1.39 MMCF) were injected over a 20-hour period, after which the well was shut in for a 32-day 'soak' period before production was resumed. Results demonstrated injection rates of 1.67 MMCF of gas per day, which was much higher than anticipated and no CO2 was detected in gas samples taken from eight immediately offsetting observation wells. All data collected during this test was analyzed, interpreted, and incorporated into the reservoir characterization study and used to develop the geologic model. The geologic model was used as input into a reservoir simulation performed by Fekete Associates, Inc., to estimate the behavior of reservoir fluids when large quantities of CO2 are injected into the 'Clinton' sandstone. Results strongly suggest that the majority of the injected CO2 entered the matrix porosity of the reservoir pay zones, where it diffused into the oil. Evidence includes: (A) the volume of injected CO2 greatly exceeded the estimated capacity of the hydraulic fracture and natural fractures; (B) there was a gradual injection and pressure rate build-up during the test; (C) there was a subsequent, gradual flashout of the CO2 within the reservoir during the ensuing monitored production period; and (D) a large amount of CO2 continually off-gassed from wellhead oil samples collected as late as 3 1/2 months after injection. After the test well was returned to production, it produced 174 bbl of oil during a 60-day period (September 22 to November 21, 2008), which represents an estimated 58 percent increase in incremental oil production over preinjection estimates of production under normal, conditions. The geologic model was used in a reservoir simulation model for a 700-acre model area and to design a pilot to test the model. The model was designed to achieve a 1-year response time and a five-year simulation period. The reservoir simulation modeling indicated that the injection wells could enhance oil production and lead to an additional 20 percent recovery in the pilot area over a five-year period. The base case estimated that by injecting 500 MCF per day of CO2 into each of the four corner wells, 26,000 STBO would be produced by the central producer over the five-year period. This would compare to 3,000 STBO if a new well were drilled without the benefit of CO2 injection. This study has added significant knowledge to the reservoir characterization of the 'Clinton' in the ECOF and succeeded in identifying a range on CO2-EOR potential. However, additional data on fluid properties (PVT and swelling test), fractures (oriented core and microseis), and reservoir characteristics (relative permeability, capillary pressure, and wet ability) are needed to further narrow the uncertainties and refine the reservoir model and simulation. After collection of this data and refinement of the model and simulation, it is recommended that a larger scale cyclic-CO2 injection test be conducted to better determine the efficacy of CO2-EOR in the 'Clinton' reservoir in the ECOF.

  8. SEQUENCE STRATIGRAPHY AND FACIES ANALYSIS OF THE ROLLINS SANDSTONE MEMBER (MOUNT GARFIELD FORMATION) AND RE-EXAMINATION OF THE CONTACT BETWEEN THE MOUNT GARFIELD AND WILLIAMS FORK FORMATIONS (LATE CRETACEOUS)

    E-Print Network [OSTI]

    Thompson, Jesse David

    2011-08-31T23:59:59.000Z

    there is no upward-climbing geometry at the top of the Mount Garfield Formation, and the Rollins Sandstone Member and the Cameo Wheeler coal zone (of the Williams Fork Formation) are not time-equivalent units. The marine- shoreface deposits within the Rollins...

  9. The generalized cusp in ABJ(M) N = 6 Super Chern-Simons theories

    E-Print Network [OSTI]

    Griguolo, Luca; Martelloni, Gabriele; Seminara, Domenico

    2012-01-01T23:59:59.000Z

    We construct a generalized cusped Wilson loop operator in N = 6 super Chern-Simons-matter theories which is locally invariant under half of the supercharges. It depends on two parameters and interpolates smoothly between the 1/2 BPS line or circle and a pair of antiparallel lines, representing a natural generalization of the quark-antiquark potential in ABJ(M) theories. For particular choices of the parameters we obtain 1/6 BPS configurations that, mapped on S^2 by a conformal transformation, realize a three-dimensional analogue of the wedge DGRT Wilson loop of N = 4. The cusp couples, in addition to the gauge and scalar fields of the theory, also to the fermions in the bifundamental representation of the U(N)xU(M) gauge group and its expectation value is expressed as the holonomy of a suitable superconnection. We discuss the definition of these observables in terms of traces and the role of the boundary conditions of fermions along the loop. We perform a complete two-loop analysis, obtaining an explicit resu...

  10. The generalized cusp in ABJ(M) N = 6 Super Chern-Simons theories

    E-Print Network [OSTI]

    Luca Griguolo; Daniele Marmiroli; Gabriele Martelloni; Domenico Seminara

    2013-06-20T23:59:59.000Z

    We construct a generalized cusped Wilson loop operator in N = 6 super Chern-Simons-matter theories which is locally invariant under half of the supercharges. It depends on two parameters and interpolates smoothly between the 1/2 BPS line or circle and a pair of antiparallel lines, representing a natural generalization of the quark-antiquark potential in ABJ(M) theories. For particular choices of the parameters we obtain 1/6 BPS configurations that, mapped on S^2 by a conformal transformation, realize a three-dimensional analogue of the wedge DGRT Wilson loop of N = 4. The cusp couples, in addition to the gauge and scalar fields of the theory, also to the fermions in the bifundamental representation of the U(N)xU(M) gauge group and its expectation value is expressed as the holonomy of a suitable superconnection. We discuss the definition of these observables in terms of traces and the role of the boundary conditions of fermions along the loop. We perform a complete two-loop analysis, obtaining an explicit result for the generalized cusp at the second non-trivial order, from which we read off the interaction potential between heavy 1/2 BPS particles in the ABJ(M) model. Our results open the possibility to explore in the three-dimensional case the connection between localization properties and integrability, recently advocated in D = 4.

  11. Chern-Simons modified gravity as a torsion theory and its interaction with fermions

    SciTech Connect (OSTI)

    Alexander, Stephon; Yunes, Nicolas [Institute for Gravity and the Cosmos, Department of Physics, The Pennsylvania State University, University Park, PA 16802 (United States)

    2008-06-15T23:59:59.000Z

    We study the tetrad formulation of Chern-Simons (CS) modified gravity, which adds a Pontryagin term to the Einstein-Hilbert action with a spacetime-dependent coupling field. We first verify that CS modified gravity leads to a theory with torsion, where this tensor is given by an antisymmetric product of the Riemann tensor and derivatives of the CS coupling. We then calculate the torsion in the far field of a weakly gravitating source within the parameterized post-Newtonian formalism, and specialize the result to Earth. We find that CS torsion vanishes only if the coupling vanishes, thus generically leading to a modification of gyroscopic precession, irrespective of the coupling choice. Perhaps most interestingly, we couple fermions to CS modified gravity via the standard Dirac action and find that these further correct the torsion tensor. Such a correction leads to two new results: (i) a generic enhancement of CS modified gravity by the Dirac equation and axial fermion currents; (ii) a new two-fermion interaction, mediated by an axial current and the CS correction. We conclude with a discussion of the consequences of these results in particle detectors and realistic astrophysical systems.

  12. Gauge theory deformations and novel Yang-Mills Chern-Simons field theories with torsion

    E-Print Network [OSTI]

    Stephen C. Anco

    2004-09-16T23:59:59.000Z

    A basic problem of classical field theory, which has attracted growing attention over the past decade, is to find and classify all nonlinear deformations of linear abelian gauge theories. The first part of this paper summarizes and significantly elaborates a field- theoretic deformation method developed in earlier work. As a key contribution presented here, a universal geometrical structure common to a large class of nonlinear gauge theory examples is uncovered. This structure is derived geometrically from the deformed gauge symmetry and is characterized by a covariant derivative operator plus a nonlinear field strength, related through the curvature of the covariant derivative. The scope of these results encompasses Yang-Mills theory, Freedman-Townsend theory, Einstein gravity theory, in addition to their many interesting types of novel generalizations that have been found in the past several years. The second part of the paper presents a new geometrical type of Yang-Mills generalization in three dimensions motivated from considering torsion in the context of nonlinear sigma models with Lie group targets (chiral theories). The generalization is derived by a deformation analysis of linear abelian Yang-Mills Chern-Simons gauge theory. Torsion is introduced geometrically through a duality with chiral models obtained from the chiral field form of self-dual 2+2 dimensional Yang-Mills theory under reduction to 2+1 dimensions. Field-theoretic and geometric features of the resulting nonlinear gauge theories with torsion are discussed.

  13. Index theorem, spin Chern Simons theory and fractional magnetoelectric effect in strongly correlated topological insulators

    E-Print Network [OSTI]

    K. -S. Park; H. Han

    2011-05-31T23:59:59.000Z

    Making use of index theorem and spin Chern Simons theory, we construct an effective topological field theory of strongly correlated topological insulators coupling to a nonabelian gauge field $ SU(N) $ with an interaction constant $ g $ in the absence of the time-reversal symmetry breaking. If $ N $ and $ g $ allow us to define a t'Hooft parameter $ \\lambda $ of effective coupling as $ \\lambda = N g^{2} $, then our construction leads to the fractional quantum Hall effect on the surface with Hall conductance $ \\sigma_{H}^{s} = \\frac{1}{4\\lambda} \\frac{e^{2}}{h} $. For the magnetoelectric response described by a bulk axion angle $ \\theta $, we propose that the fractional magnetoelectric effect can be realized in gapped time reversal invariant topological insulators of strongly correlated bosons or fermions with an effective axion angle $ \\theta_{eff} = \\frac{\\pi}{2 \\lambda} $ if they can have fractional excitations and degenerate ground states on topologically nontrivial and oriented spaces. Provided that an effective charge is given by $ e_{eff} = \\frac{e}{\\sqrt{2 \\lambda}} $, it is shown that $ \\sigma_{H}^{s} = \\frac{e_{eff}^{2}}{2h} $, resulting in a surface Hall conductance of gapless fermions with $ e_{eff} $ and a pure axion angle $ \\theta = \\pi $.

  14. Noncommutative Chern-Simons gauge and gravity theories and their geometric Seiberg-Witten map

    E-Print Network [OSTI]

    Paolo Aschieri; Leonardo Castellani

    2014-11-18T23:59:59.000Z

    We use a geometric generalization of the Seiberg-Witten map between noncommutative and commutative gauge theories to find the expansion of noncommutative Chern-Simons (CS) theory in any odd dimension $D$ and at first order in the noncommutativity parameter $\\theta$. This expansion extends the classical CS theory with higher powers of the curvatures and their derivatives. A simple explanation of the equality between noncommutative and commutative CS actions in $D=1$ and $D=3$ is obtained. The $\\theta$ dependent terms are present for $D\\geq 5$ and give a higher derivative theory on commutative space reducing to classical CS theory for $\\theta\\to 0$. These terms depend on the field strength and not on the bare gauge potential. In particular, as for the Dirac-Born-Infeld action, these terms vanish in the slowly varying field strength approximation: in this case noncommutative and commutative CS actions coincide in any dimension. The Seiberg-Witten map on the $D=5$ noncommutative CS theory is explored in more detail, and we give its second order $\\theta$-expansion for any gauge group. The example of extended $D=5$ CS gravity, where the gauge group is $SU(2,2)$, is treated explicitly.

  15. Dark energy and Chern-Simons like gravity from a dynamical four-form

    E-Print Network [OSTI]

    Patrick Das Gupta

    2011-12-02T23:59:59.000Z

    We consider the dynamics of a four-form field $\\tilde {w} $, treating it as a distinct physical degree of freedom, independent of the metric. The equations of motion are derived from an action which, besides having the standard Hilbert-Einstein term and the matter part, consists of a new action for $\\tilde {w} $. The evolution of $\\tilde {w} $ in a flat FRW universe is studied, and it is shown that the parameters of the theory admit solutions wherein it is possible to have an equation of state $p_\\phi \\approx -\\epsilon_\\phi $, so that it leads to an accelerating universe. We also put forward electromagnetic as well as gravitational `Chern-Simons' like terms that arise naturally in 4D, entailing a modified Einstein-Maxwell equation and an enlarged system of Einstein equation involving a Cotton tensor. We demonstrate that the scalar-density associated with $\\tilde {w} $ can be employed to construct a generalized exterior derivative that converts a p-form density to a (p+1)-form density of identical weight.

  16. Observations of roAp stars at the Mt. Dushak-Erekdag station of Odessa Astronomical Observatory

    E-Print Network [OSTI]

    T. N. Dorokhova; N. I. Dorokhov

    1998-05-14T23:59:59.000Z

    Since 1992, observations of roAp stars have been carried out using the dual-channel photometer attached to the 0.8m telescope, which is situated in Central Asia, at the Mt. Dushak-Erekdag station of Odessa Astronomical Observatory. Some results of observations of gamma Equ and of HD 134214 are presented. 5 stars were investigated as roAp candidates. The Fourier spectra of 4 stars did not show any variability in the high-frequency region. The Fourier spectrum of HD 99563 revealed a peak at a frequency f=128.9 c/d and with a semi-amplitude of 3.98 mmag.

  17. Chern-Simons gravity with (curvature){sup 2} and (torsion){sup 2} terms and a basis of degree-of-freedom projection operators

    SciTech Connect (OSTI)

    Helayeel-Neto, J. A.; Hernaski, C. A.; Pereira-Dias, B.; Vargas-Paredes, A. A.; Vasquez-Otoya, V. J. [Centro Brasileiro de Pesquisas Fisicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Brazil, CEP 22290-180 (Brazil)

    2010-09-15T23:59:59.000Z

    The effects of (curvature){sup 2}- and (torsion){sup 2}-terms in the Einstein-Hilbert-Chern-Simons Lagrangian are investigated. The purposes are two-fold: (i) to show the efficacy of an orthogonal basis of degree-of-freedom projection operators recently proposed and to ascertain its adequacy for obtaining propagators of general parity-breaking gravity models in three dimensions; (ii) to analyze the role of the topological Chern-Simons term for the unitarity and the particle spectrum of the model squared-curvature terms in connection with dynamical torsion. Our conclusion is that the Chern-Simons term does not influence the unitarity conditions imposed on the parameters of the Lagrangian but significantly modifies the particle spectrum.

  18. A polymorphism in metallothionein 1A (MT1A) is associated with cadmium-related excretion of urinary beta 2?microglobulin

    SciTech Connect (OSTI)

    Lei, Lijian [Department of Occupational Health, School of Public Health, Fudan University, Shanghai (China) [Department of Occupational Health, School of Public Health, Fudan University, Shanghai (China); Department of Epidemiology, School of Public Health, Shanxi Medical University, Shanxi (China); Chang, Xiuli [Department of Occupational Health, School of Public Health, Fudan University, Shanghai (China)] [Department of Occupational Health, School of Public Health, Fudan University, Shanghai (China); Rentschler, Gerda [Department of Occupational and Environmental Medicine, Lund University, SE-22185, Lund (Sweden)] [Department of Occupational and Environmental Medicine, Lund University, SE-22185, Lund (Sweden); Tian, Liting [Department of Occupational Health, School of Public Health, Fudan University, Shanghai (China)] [Department of Occupational Health, School of Public Health, Fudan University, Shanghai (China); Zhu, Guoying; Chen, Xiao [Department of Bone Metabolism, Institute of Radiation Medicine, Fudan University, Shanghai (China)] [Department of Bone Metabolism, Institute of Radiation Medicine, Fudan University, Shanghai (China); Jin, Taiyi, E-mail: tyjinster@gmail.com [Department of Occupational Health, School of Public Health, Fudan University, Shanghai (China)] [Department of Occupational Health, School of Public Health, Fudan University, Shanghai (China); Broberg, Karin, E-mail: karin.broberg_palmgren@med.lu.se [Department of Occupational and Environmental Medicine, Lund University, SE-22185, Lund (Sweden)] [Department of Occupational and Environmental Medicine, Lund University, SE-22185, Lund (Sweden)

    2012-12-15T23:59:59.000Z

    Objectives: Cadmium (Cd) toxicity of the kidney varies between individuals despite similar exposure levels. In humans Cd is mainly bound to metallothioneins (MT), which scavenge its toxic effects. Here we analyzed whether polymorphisms in MT genes MT1A and MT2A influence Cd-related kidney damage. Methods: In a cross-sectional study N = 512 volunteers were selected from three areas in South-Eastern China, which to varying degree were Cd-polluted from a smelter (control area [median Cd in urine U-Cd = 2.67 ?g/L], moderately [U-Cd = 4.23 ?g/L] and highly [U-Cd = 9.13 ?g/L] polluted areas). U-Cd and blood Cd (B-Cd) concentrations were measured by graphite-furnace atomic absorption spectrometry. MT1A rs11076161 (G/A), MT2A rs10636 (G/C) and MT2A rs28366003 (A/G) were determined by Taqman assays; urinary N-Acetyl-beta-(D)-Glucosaminidase (UNAG) by spectrometry, and urinary ?2-microglobulin (UB2M) by ELISA. Results: Higher B-Cd (natural log-transformed) with increasing number of MT1A rs11076161 A-alleles was found in the highly polluted group (p-value trend = 0.033; all p-values adjusted for age, sex, and smoking). In a linear model a significant interaction between rs11076161 genotype and B-Cd was found for UNAG (p = 0.001) and UB2M concentrations (p = 0.001). Carriers of the rs11076161 AA genotype showed steeper slopes for the associations between Cd in blood and natural log-transformed UB2M (? = 1.2, 95% CI 0.72–1.6) compared to GG carriers (? = 0.30, 95% CI 0.15–0.45). Also for UNAG (natural log-transformed) carriers of the AA genotype had steeper slopes (? = 0.55, 95% CI 0.27–0.84) compared to GG carriers (? = 0.018, 95% CI ? 0.79–0.11). Conclusions: MT1A rs11076161 was associated with B-Cd concentrations and Cd-induced kidney toxicity at high exposure levels. -- Highlights: ? Cadmium is toxic to the kidney but the susceptibility differs between individuals. ? The toxic effect of cadmium is scavenged by metallothioneins. ? A common variant of metallothionein 1A was genotyped in 512 cadmium exposed humans. ? Variant carriers of this polymorphism showed more kidney damage from cadmium. ? The frequency of these variants needs to be taken into account in risk assessment.

  19. Geology and petrophysical characterization of the Ferron Sandstone for 3-D simulation of a fluvial-deltaic reservoir. Annual report, October 1, 1996--September 30, 1997

    SciTech Connect (OSTI)

    Chidsey, T.C. Jr.; Anderson, P.B.; Morris, T.H.; Dewey, J.A. Jr.; Mattson, A.; Foster, C.B.; Snelgrove, S.H.; Ryer, T.A.

    1998-05-01T23:59:59.000Z

    The objective of the Ferron Sandstone (Utah) project is to develop a comprehensive, interdisciplinary, quantitative characterization of a fluvial-deltaic reservoir to allow realistic interwell and reservoir-scale models to be developed for improved oil-field development in similar reservoirs world-wide. Both new and existing data is being integrated into a 3-D model of spatial variations in porosity, storativity, and tensorial rock permeability at a scale appropriate for inter-well to regional-scale reservoir simulation. Simulation results could improve reservoir management through proper infill and extension drilling strategies, reduction of economic risks, increased recovery from existing oil fields, and more reliable reserve calculations. The project is divided into four tasks: (1) regional stratigraphic analysis, (2) case studies, (3) reservoirs models, and (4) field-scale evaluation of exploration strategies. The primary objective of the regional stratigraphic analysis is to provide a more detailed interpretation of the stratigraphy and gross reservoir characteristics of the Ferron Sandstone as exposed in outcrop. The primary objective of the case-studies work is to develop a detailed geological and petrophysical characterization, at well-sweep scale or smaller, of the primary reservoir lithofacies typically found in a fluvial-dominated deltaic reservoir. Work on tasks 3 and 4 consisted of developing two- and three-dimensional reservoir models at various scales. The bulk of the work on these tasks is being completed primarily during the last year of the project, and is incorporating the data and results of the regional stratigraphic analysis and case-studies tasks.

  20. Searches for supersymmetry using the MT2 variable in hadronic events produced in pp collisions at 8 TeV

    E-Print Network [OSTI]

    CMS Collaboration

    2015-02-15T23:59:59.000Z

    Searches for supersymmetry (SUSY) are performed using a sample of hadronic events produced in 8 TeV pp collisions at the CERN LHC. The searches are based on the MT2 variable, which is a measure of the transverse momentum imbalance in an event. The data were collected with the CMS detector and correspond to an integrated luminosity of 19.5 inverse femtobarns. Two related searches are performed. The first is an inclusive search based on signal regions defined by the value of the MT2 variable, the hadronic energy in the event, the jet multiplicity, and the number of jets identified as originating from bottom quarks. The second is a search for a mass peak corresponding to a Higgs boson decaying to a bottom quark-antiquark pair, where the Higgs boson is produced as a decay product of a SUSY particle. For both searches, the principal backgrounds are evaluated with data control samples. No significant excess over the expected number of background events is observed, and exclusion limits on various SUSY models are derived.

  1. LOCA simulation in the national research universal reactor program: postirradiation examination results for the third materials experiment (MT-3)

    SciTech Connect (OSTI)

    Rausch, W.N.

    1984-04-01T23:59:59.000Z

    A series of in-reactor experiments were conducted using full-length 32-rod pressurized water reactor (PWR) fuel bundles as part of the Loss-of-Coolant Accident (LOCA) Simulation Program. The third materials experiment (MT-3) was the sixth in the series of thermal-hydraulic and materials deformation/rutpure experiments conducted in the National Research Universal (NRU) reactor, Chalk River, Ontario, Canada. The main objective of the experiment was to evaluate ballooning and rupture during active two-phase cooling in the temperature range from 1400 to 1500/sup 0/F (1030 to 1090 K). The 12 test rods in the center of the 32-rod bundle were initially pressurized to 550 psi (3.8 MPa) to insure rupture in the correct temperature range. All 12 of the rods ruptured, with an average peak bundle strain of approx. 55%. The UKAEA also funded destructive postirradiation examination (PIE) of several of the ruptured rods from the MT-3 experiment. This report describes the work performed and presents the PIE results. Information obtained during the PIE included cladding thickness measurements metallography, and particle size analysis of the cracked and broken fuel pellets.

  2. Characterization of High-OD Ultrathin Infrared Neutral Density Filters Simon G. Kaplan, Leonard M. Hanssen, Alan L. Migdall, and Glenn LefeverButtont

    E-Print Network [OSTI]

    Migdall, Alan

    Characterization of High-OD Ultrathin Infrared Neutral Density Filters Simon G. Kaplan, Leonard M, transmittance 1. INTRODUCTION High optical-density (OD = -1og10(T), where T is transmittance) filters02-laser band. They have the advantage that the OD can be made nearly linear in thickness over

  3. Mineral hints at bright blue rocks deep in the Earth 12 March 2014 Last updated at 21:16 ET | By Simon Redfern Science writer

    E-Print Network [OSTI]

    Machel, Hans

    Mineral hints at bright blue rocks deep in the Earth 12 March 2014 Last updated at 21:16 ET | By Simon Redfern Science writer Minerals preserved in diamond have revealed hints of the bright blue and back, which it has." Blue planet Prof Joseph Smyth of the University of Colorado has spent many

  4. To cite this document: Bechet, S. and Negulescu, C. and Chapin, Vincent and Simon, Frank Integration of CFD tools in aerodynamic design of contra-rotating

    E-Print Network [OSTI]

    Mailhes, Corinne

    efficient aircraft propulsion systems [1]. This concept promises significant reductions of fuel consumption. Béchet and C. A. Negulescu Airbus Operations S.A.S. - Aerodynamics Department, Toulouse, France V. Chapin ISAE DAEP, Toulouse, France F. Simon ONERA DMAE, Toulouse, France Keywords: Contra-Rotating Propellers

  5. Appendix C extra -Grand canonical ensemble Cx5 -1 2002 by David Boal, Simon Fraser University. All rights reserved; further resale or copying is strictly prohibited.

    E-Print Network [OSTI]

    Boal, David

    Appendix C extra - Grand canonical ensemble Cx5 - 1 © 2002 by David Boal, Simon Fraser University ) exp(-�E o ) = Z · Z'. (Cx5.1) Lastly, quantities such as energy and entropy which depend on lnZ, are additive according to Eq. (Cx5.1). Entropy and probability In terms of the partition function, the entropy

  6. PHYS 390 Lecture 12 -Energy and temperature 12 -1 2001 by David Boal, Simon Fraser University. All rights reserved; further copying or resale is strictly prohibited.

    E-Print Network [OSTI]

    Boal, David

    · it has a contribution from a mass energy mc 2 . Where does kinetic energy fit into this? By definition: E, thus releasing energy to the system. This definition can be applied to decays as well: QPHYS 390 Lecture 12 - Energy and temperature 12 - 1 © 2001 by David Boal, Simon Fraser University

  7. PHYS 390 Lecture 22 -Energy production in stars 22 -1 2001 by David Boal, Simon Fraser University. All rights reserved; further resale or copying is strictly prohibited.

    E-Print Network [OSTI]

    Boal, David

    PHYS 390 Lecture 22 - Energy production in stars 22 - 1 © 2001 by David Boal, Simon Fraser, Sec. 5.3 Energy production in PP I Because 3 He production from D is a relatively fast step at T = 15 × 106 K and #12;PHYS 390 Lecture 22 - Energy production in stars 22 - 2 © 2001 by David Boal

  8. PHYS 211 Lecture 15 -Kepler's Laws 15 -1 2001 by David Boal, Simon Fraser University. All rights reserved; further copying or resale is strictly prohibited.

    E-Print Network [OSTI]

    Boal, David

    : Fowles and Cessiday, Chap. 6 One of the major successes of Newton's law of universal gravitation of the planet's orbit. We now use Newton's laws of mechanics and gravitation to explain (or derive) eachPHYS 211 Lecture 15 - Kepler's Laws 15 - 1 © 2001 by David Boal, Simon Fraser University. All

  9. CONTRIBUTION A L'TUDE DE L'OXYDATION DU NIOBIUM par Messieurs D. MOLLIMARD, J. BARDOLLE, D. SIMON, C. PERRIN et G. DALIBARD

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    599 CONTRIBUTION A L'ÉTUDE DE L'OXYDATION DU NIOBIUM par Messieurs D. MOLLIMARD, J. BARDOLLE, D. SIMON, C. PERRIN et G. DALIBARD Résumé. 2014 Le présent travail est une étude de l'oxydation du Niobium work, Niobium oxidation is studied in various conditions of tempera- ture and pressure with respect

  10. A long-term perspective on biomass burning in the Serra da Estrela, Portugal Simon E. Connor a,d,*, Joo Arajo a

    E-Print Network [OSTI]

    Bern, Universität

    A long-term perspective on biomass burning in the Serra da Estrela, Portugal Simon E. Connor a the antiquity of biomass burning and its effects on Mediterranean vegetation at the Atlantic margin. Results in Southern Europe (Moreira et al., 2010). Fires are especially frequent and widespread in the country

  11. Comment on ``A modified leapfrog scheme for shallow water equations'' by Wen-Yih Sun and Oliver M.T. Sun

    E-Print Network [OSTI]

    Williams, Paul

    Commentary Comment on ``A modified leapfrog scheme for shallow water equations'' by Wen-Yih Sun and Oliver M.T. Sun Paul D. Williams Department of Meteorology, University of Reading, UK a r t i c l e i n f integration of the shallow-water equa- tions using the leapfrog time-stepping scheme [Sun Wen-Yih, Sun Oliver

  12. The mitochondrial fatty acid synthesis (mtFASII) pathway is capable of mediating nuclear-mitochondrial cross talk through the PPAR system of transcriptional activation

    SciTech Connect (OSTI)

    Parl, Angelika; Mitchell, Sabrina L.; Clay, Hayley B.; Reiss, Sara; Li, Zhen; Murdock, Deborah G., E-mail: deborah.murdock@vanderbilt.edu

    2013-11-15T23:59:59.000Z

    Highlights: •The function of the mitochondria fatty acid synthesis pathway is partially unknown. •Overexpression of the pathway causes transcriptional activation through PPARs. •Knock down of the pathway attenuates that activation. •The last enzyme in the pathway regulates its own transcription. •Products of the mtFASII pathway are able to drive nuclear transcription. -- Abstract: Mammalian cells contain two fatty acid synthesis pathways, the cytosolic FASI pathway, and the mitochondrial FASII pathway. The selection behind the conservation of the mitochondrial pathway is not completely understood, given the presence of the cytosolic FAS pathway. In this study, we show through heterologous gene reporter systems and PCR-based arrays that overexpression of MECR, the last step in the mtFASII pathway, causes modulation of gene expression through the PPAR pathway. Electromobility shift assays (EMSAs) demonstrate that overexpression of MECR causes increased binding of PPARs to DNA, while cell fractionation and imaging studies show that MECR remains localized to the mitochondria. Interestingly, knock down of the mtFASII pathway lessens the effect of MECR on this transcriptional modulation. Our data are most consistent with MECR-mediated transcriptional activation through products of the mtFASII pathway, although we cannot rule out MECR acting as a coactivator. Further investigation into the physiological relevance of this communication will be necessary to better understand some of the phenotypic consequences of deficits in this pathway observed in animal models and human disease.

  13. COII/tRNA[sup Lys] intergenic 9-bp deletion and other mtDNA markers clearly reveal that the Tharus (Southern Nepal) have oriental affinities

    SciTech Connect (OSTI)

    Passarino, G.; Semino, O.; Santachiara-Benerecetti, A.S.; Modiano, G. (Universita di Tor Vergata (Romania))

    1993-09-01T23:59:59.000Z

    The authors searched for the East Asian mtDNA 9-bp deletion in the intergenic COII/tRNA[sup Lys] region in a sample of 107 Tharus (50 from central Terai and 57 from eastern Terai), a population whose anthropological origin has yet to be completely clarified. The deletion, detected by electrophoresis of the PCR-amplified nt 7392-8628 mtDNA fragment after digestion with HaeIII, was found in about 8% of both Tharu groups but was found in none of the 76 Hindus who were examined as a non-Oriental neighboring control population. A complete triplication of the 9-bp unit, the second case so far reported, was also observed in one eastern Tharu. All the mtDNAs with the deletion, and that with the triplication, were further characterized (by PCR amplification of the relevant mTDNA fragments and their digestion with the appropriate enzymes) to locate them in the Ballinger et al. phylogeny of East Asian mtDNA haplotypes. The deletion was found to be associated with four different haplotypes, two of which are reported for the first time. One of the deletions and especially the triplication could be best explained by the assumption of novel length-change events. Ballinger's classification of East Asian mtDNA haplotypes is mainly based on the phenotypes for the DdeI site at nt 10394 and the AluI site at nt 10397. Analysis of the entire Tharu sample revealed that more than 70% of the Tharus have both sites, the association of which has been suggested as an ancient East Asian peculiarity. These results conclusively indicate that the Tharus have a predominantly maternal Oriental ancestry. Moreover, they show at least one and perhaps two further distinct length mutations, and this suggests that the examined region is a hot spot of rearrangements. 21 refs., 5 figs., 6 tabs.

  14. The massive fermion phase for the U(N) Chern-Simons gauge theory in D=3 at large N

    SciTech Connect (OSTI)

    Bardeen, William A. [Fermilab

    2014-10-01T23:59:59.000Z

    We explore the phase structure of fermions in the U(N) Chern-Simons Gauge theory in three dimensions using the large N limit where N is the number of colors and the fermions are taken to be in the fundamental representation of the U(N) gauge group. In the large N limit, the theory retains its classical conformal behavior and considerable attention has been paid to possible AdS/CFT dualities of the theory in the conformal phase. In this paper we present a solution for the massive phase of the fermion theory that is exact to the leading order of ‘t Hooft’s large N expansion. We present evidence for the spontaneous breaking of the exact scale symmetry and analyze the properties of the dilaton that appears as the Goldstone boson of scale symmetry breaking.

  15. Relating U(N)xU(N) to SU(N)xSU(N) Chern-Simons Membrane theories

    E-Print Network [OSTI]

    Neil Lambert; Constantinos Papageorgakis

    2010-04-14T23:59:59.000Z

    By integrating out the U(1)_B gauge field, we show that the U(n)xU(n) ABJM theory at level k is equivalent to a Z_k identification of the (SU(n)xSU(n))/Z_n Chern-Simons theory, but only when n and k are coprime. As a consequence, the k=1 ABJM model for two M2-branes in R^8 can be identified with the N=8 (SU(2)xSU(2))/Z_2 theory. We also conjecture that the U(2)xU(2) ABJM model at k=2 is equivalent to the N=8 SU(2)xSU(2)-theory.

  16. Secondary oil recovery from selected Carter sandstone oilfields -- Black Warrior Basin, Alabama. Quarterly technical progress report, September 1--November 30, 1993

    SciTech Connect (OSTI)

    Anderson, J.C.

    1994-01-15T23:59:59.000Z

    Anderman/Smith Operating Co. is operating a secondary oil recovery project involving the Carter sandstone in northwest Alabama. The project objectives are: (1) to increase the ultimate economic recovery of oil from the Carter reservoirs, thereby increasing domestic reserves and lessening US dependence on foreign oil; (2) to extensively model, test, and monitor the reservoirs so their management is optimized; and (3) to assimilate and transfer the information and results gathered to other US oil companies to encourage them to attempt similar projects. As a result of waterflood operations at the Central Buff unit, oil production from the Fowler Brasher 7--9 well increased to 40--50 stb/d in late October, and averaged about 45 stb/d in November with no measurable water production. Production at the Fowler Dodson 8--12 was more erratic during the same period. In October, the oil rate for this well increased to nearly 17 stb/d with no reported water production. However, in November the oil production rate declined to about 9 stb/d with an associated average water rate of nearly 17 bpd. Water analysis showed that this produced water was significantly fresher than the connate water produced prior to waterflood operations. This provides evidence for early breakthrough of water injected at the Jones 7--16 well and will be an important consideration in the reservoir modeling study being performed for the unit. There has been essentially no change in the waterflood response at the North Fairview Unit during the last quarter. Oil production rates from the three producing wells have remained unchanged; that is, 3 stb/d for Smith 33-6, 2 stb/d for Perkins 33--11, and 1 stb/d for the Perkins Young 33--10 well.

  17. EXPERIMENTAL INVESTIGATION OF Ti and Fe VALENCE IN CHONDRULE-LIKE MELTS DURING COOLING UNDER CHANGING REDOX CONDITIONS AT LOW PARTIAL PRESSURES. S. B. Simon1

    E-Print Network [OSTI]

    Grossman, Lawrence

    . This idea is being tested experimentally. Initial results were re- ported by [3]; here we report results CHANGING REDOX CONDITIONS AT LOW PARTIAL PRESSURES. S. B. Simon1 , J. R. Beckett2 , S. R. Sutton1,3 and L melted on Fe loops. Three runs are reported here: an isothermal run (I6) at 1400°C for 66 h at 2.75 log

  18. Acute and chronic effects of exposure to a 1-mT magnetic field on the cytoskeleton, stress proteins, and proliferation of astroglial cells in culture

    SciTech Connect (OSTI)

    Bodega, G. [Departamento de Biologia Celular y Genetica, Facultad de Biologia, Universidad de Alcala, 28871 Alcala de Henares, Madrid (Spain)]. E-mail: guillermo.bodega@uah.es; Forcada, I. [Departamento de Biologia Celular y Genetica, Facultad de Biologia, Universidad de Alcala, 28871 Alcala de Henares, Madrid (Spain); Suarez, I. [Departamento de Biologia Celular y Genetica, Facultad de Biologia, Universidad de Alcala, 28871 Alcala de Henares, Madrid (Spain); Fernandez, B. [Departamento de Biologia Celular, Facultad de Biologia, Universidad Complutense, 28040 Madrid (Spain)

    2005-07-01T23:59:59.000Z

    This paper reports the effects of exposure to static, sinusoidal (50 Hz), and combined static/sinusoidal magnetic fields on cultured astroglial cells. Confluent primary cultures of astroglial cells were exposed to a 1-mT sinusoidal, static, or combined magnetic field for 1 h. In another experiment, cells were exposed to the combined magnetic field for 1, 2, and 4 h. The hsp25, hsp60, hsp70, actin, and glial fibrillary acidic protein contents of the astroglial cells were determined by immunoblotting 24 h after exposure. No significant differences were seen between control and exposed cells with respect to their contents of these proteins, neither were any changes in cell morphology observed. In a third experiment to determine the effect of a chronic (11-day) exposure to a combined 1-mT static/sinusoidal magnetic field on the proliferation of cultured astroglial cells, no significant differences were seen between control, sham-exposed, or exposed cells. These results suggest that exposure to 1-mT sinusoidal, static, or combined magnetic fields has no significant effects on the stress, cytoskeletal protein levels in, or proliferation of cultured astroglial cells.

  19. The lithology, environment of deposition, and reservoir evaluation of sandstones in the Upper Queen Formation (Guadalupian, Permian) at Concho Bluff North and Jennifer Fields, Upton and Ector Counties, Texas

    E-Print Network [OSTI]

    Harper, James Broox

    1990-01-01T23:59:59.000Z

    to sandstone and then back to a mudstone, and each cycle records the progradation and retreat of fluvial- deltaic sandflats and mudflats in and out of the back-reef playa. The two fields are considered to be stratigraphic traps on a broad regional.... The playa and mudflats are the non-reservoir facies, and have porosities less than 10% and permeabilities less than 1 md. The North Concho Bluff Field was discovered in 1956, and has produced 7, 515, 218 bbls of oil through 1987. The laterally...

  20. Gauge fixing and classical dynamical r-matrices in ISO(2,1)-Chern-Simons theory

    E-Print Network [OSTI]

    Catherine Meusburger; Torsten Schönfeld

    2012-05-31T23:59:59.000Z

    We apply Dirac's gauge fixing procedure to Chern-Simons theory with gauge group ISO(2,1) on manifolds RxS, where S is a punctured oriented surface of general genus. For all gauge fixing conditions that satisfy certain structural requirements, this yields an explicit description of the Poisson structure on the moduli space of flat ISO(2,1)-connections on S via the resulting Dirac bracket. The Dirac bracket is determined by classical dynamical r-matrices for ISO(2,1). We show that the Poisson structures and classical dynamical r-matrices arising from different gauge fixing conditions are related by dynamical ISO(2,1)-valued transformations that generalise the usual gauge transformations of classical dynamical r-matrices. By means of these transformations, it is possible to classify all Poisson structures and classical dynamical r-matrices obtained from such gauge fixings. Generically these Poisson structures combine classical dynamical r-matrices for non-conjugate Cartan subalgebras of iso(2,1).

  1. versity (MT Assistant o

    E-Print Network [OSTI]

    discipline um vitae, s and contac electronica cmsearch@ 2011, an trategic Fac nitiative ates are en rsities

  2. Log interpretation of shaly sandstones

    E-Print Network [OSTI]

    Baker, Joel Foster

    1987-01-01T23:59:59.000Z

    and Gas, Arco Oil and Gas, and Sun Oil Companies for their contributions of cores, logs, and other valuable data. Their contributions were an immense help in formulating and supporting the ideas developed in my study. I also wish to express gratitute... of Water Saturation page . . 78 79 . . 81 . 87 91 93 VI CONCLUSIONS . 104 REFERENCES CITED APPENDIX I REESE INTRACOASTAL LAND ?2 DATA . 107 . . 111 APPENDIX II ARCO HANKAMER 630 ? 1 DATA 133 APPENDIX III SUN SMITH JR. ?8 DATA VITA 152 163...

  3. Log interpretation of shaly sandstones 

    E-Print Network [OSTI]

    Baker, Joel Foster

    1987-01-01T23:59:59.000Z

    bioturbated, discontinuous, subhori=ontal clay laminae. Some clay is distributed as rounded clasts ranging from 1 to 2 mm in diameter with some up to 30 mm in diameter. The next 7. 5 ft, from 13223 to 13231. 5 ft (4030. 4 to 4033. 0 m), Figure 11...

  4. Simon Fraser University Simon Fraser University

    E-Print Network [OSTI]

    and UniverCity residents). When implemented, the district heating system will support SFU's progress towards

  5. Review of AdS/CFT Integrability, Chapter IV.3: N=6 Chern-Simons and Strings on AdS4xCP3

    E-Print Network [OSTI]

    Thomas Klose

    2012-03-27T23:59:59.000Z

    We review the duality and integrability of N=6 superconformal Chern-Simons theory in three dimensions and IIA superstring theory on the background AdS4xCP3. We introduce both of these models and describe how their degrees of freedom are mapped to excitations of a long-range integrable spin-chain. Finally, we discuss the properties of the Bethe equations, the S-matrix and the algebraic curve that are special to this correspondence and differ from the case of N=4 SYM theory and strings on AdS5xS5.

  6. Experiment Safety Assurance Package for the 40- to 50-GWd/MT Burnup Phase of Mixed Oxide Fuel Irradiation in Small I-Hole Positions in the Advanced Test Reactor

    SciTech Connect (OSTI)

    Khericha, S.T.

    2002-06-30T23:59:59.000Z

    This experiment safety assurance package (ESAP) is a revision of the last MOX ESAP issued in February 2001(Khericha 2001). The purpose of this revision is to identify the changes in the loading pattern and to provide a basis to continue irradiation up to {approx}42 GWd/MT burnup (+ 2.5%) as predicted by MCNP (Monte Carlo N-Particle) transport code before the preliminary postirradiation examination (PIE) results for 40 GWd/MT burnup are available. Note that the safety analysis performed for the last ESAP is still applicable and no additional analysis is required (Khericha 2001). In July 2001, it was decided to reconfigure the test assembly using the loading pattern for Phase IV, Part 3, at the end of Phase IV, Part 1, as the loading pattern for Phase IV, Parts 2 and 3. Three capsule assemblies will be irradiated until the highest burnup capsule assembly accumulates: {approx}50 GWd/MT burnup, based on the MCNP code predictions. The last ESAP suggests that at the end of Phase IV, Part 1, we remove the two highest burnup capsule assemblies ({at} {approx}40 GWd/MT burnup) and send them to ORNL for PIE. Then, irradiate the test assembly using the loading pattern for Phase IV, Part 2, until the highest burnup capsule reaches {approx}40 GWd/MT burnup per MCNP-predicted values.

  7. Experiment Safety Assurance Package for the 40- to 50-GWd/MT Burnup Phase of Mixed Oxide Fuel Irradiation in Small I-Hole Positions in the Advanced Test Reactor

    SciTech Connect (OSTI)

    Khericha, Soli T

    2002-06-01T23:59:59.000Z

    This experiment safety assurance package (ESAP) is a revision of the last MOX ESAP issued in February 2001(Khericha 2001). The purpose of this revision is to identify the changes in the loading pattern and to provide a basis to continue irradiation up to ~42 GWd/MT burnup (+ 2.5% as predicted by MCNP (Monte Carlo N-Particle) transport code before the preliminary postirradiation examination (PIE) results for 40 GWd/MT burnup are available. Note that the safety analysis performed for the last ESAP is still applicable and no additional analysis is required (Khericha 2001). In July 2001, it was decided to reconfigure the test assembly using the loading pattern for Phase IV, Part 3, at the end of Phase IV, Part 1, as the loading pattern for Phase IV, Parts 2 and 3. Three capsule assemblies will be irradiated until the highest burnup capsule assembly accumulates: ~50 GWd/MT burnup, based on the MCNP code predictions. The last ESAP suggests that at the end of Phase IV, Part 1, we remove the two highest burnup capsule assemblies (@ ~40 GWd/MT burnup) and send them to ORNL for PIE. Then, irradiate the test assembly using the loading pattern for Phase IV, Part 2, until the highest burnup capsule reaches ~40 GWd/MT burnup per MCNP-predicted values.

  8. A synthesis and review of geomorphic surfaces of the boundary zone Mt. Taylor to Lucero uplift area, West-Central New Mexico

    SciTech Connect (OSTI)

    Wells, S.G. [NEOTEC, Inc., Albuquerque, NM (United States)

    1989-01-01T23:59:59.000Z

    The Mt. Taylor volcanic field and Lucero uplift of west-central New Mexico occur in a transitional-boundary zone between the tectonically active Basin-and Range province (Rio Grande rift) and the less tectonically active Colorado plateau. The general geomorphology and Cenozoic erosional history has been discussed primarily in terms of a qualitative, descriptive context and without the knowledge of lithospheric processes. The first discussion of geomorphic surfaces suggested that the erosional surface underlying the Mt. Taylor volcanic rocks is correlative with the Ortiz surface of the Rio Grande rift. In 1978 a study supported this hypothesis with K-Ar dates on volcanic rocks within each physiographic province. The correlation of this surface was a first step In the regional analysis of the boundary zone; however, little work has been done to verify this correlation with numerical age dates and quantitatively reconstruct the surface for neotectonic purposes. Those geomorphic surfaces inset below and younger than the ``Ortiz`` surface have been studied. This report provides a summary of this data as well as unpublished data and a conceptual framework for future studies related to the LANL ISR project.

  9. Experiment Safety Assurance Package for the 40- to 52-GWd/MT Burnup Phase of Mixed Oxide Fuel Irradiation in Small I-hole Positions in the Advanced Test Reactor

    SciTech Connect (OSTI)

    S. T. Khericha; R. C. Pedersen

    2003-09-01T23:59:59.000Z

    This experiment safety assurance package (ESAP) is a revision of the last mixed uranium and plutonium oxide (MOX) ESAP issued in June 2002). The purpose of this revision is to provide a basis to continue irradiation up to 52 GWd/MT burnup [as predicted by MCNP (Monte Carlo N-Particle) transport code The last ESAP provided basis for irradiation, at a linear heat generation rate (LHGR) no greater than 9 kW/ft, of the highest burnup capsule assembly to 50 GWd/MT. This ESAP extends the basis for irradiation, at a LHGR no greater than 5 kW/ft, of the highest burnup capsule assembly from 50 to 52 GWd/MT.

  10. Electrically charged finite energy solutions of an $SO(5)$ and an $SU(3)$ Higgs-Chern-Simons--Yang-Mills-Higgs systems in $3+1$ dimensions

    E-Print Network [OSTI]

    Francisco Navarro-Lerida; D. H. Tchrakian

    2014-12-15T23:59:59.000Z

    We study spherically symmetric finite energy solutions of two Higgs-Chern-Simons--Yang-Mills-Higgs (HCS-YMH) models in $3+1$ dimensions, one with gauge group $SO(5)$ and the other with $SU(3)$. The Chern-Simons (CS) densities are defined in terms of both the Yang-Mills (YM) and Higgs fields and the choice of the two gauge groups is made so they do not vanish. The solutions of the $SO(5)$ model carry only electric charge and zero magnetic charge, while the solutions of the $SU(3)$ model are dyons carrying both electric and magnetic charges like the Julia-Zee (JZ) dyon. Unlike the latter however, the electric charge in both models receives an important contribution from the CS dynamics. We pay special attention to the relation between the energies and charges of these solutions. In contrast with the electrically charged JZ dyon of the Yang-Mills-Higgs (YMH) system, whose mass is larger than that of the electrically neutral (magnetic monopole) solutions, the masses of the electrically charged solutions of our HCS-YMH models can be smaller than their electrically neutral counterparts in some parts of the parameter space. To establish this is the main task of this work, which is performed by constructing the HCS-YMH solutions numerically. In the case of the $SU(3)$ HCS-YMH, we have considered the question of angular momentum, and it turns out that it vanishes.

  11. Abundance of fin whales in West Greenland in 2007 M.P. HEIDE-JRGENSEN*, K.L. LAIDRE*+, M. SIMON*, M.L. BURT$, D.L. BORCHERS$ AND M. RASMUSSEN#

    E-Print Network [OSTI]

    Laidre, Kristin L.

    Abundance of fin whales in West Greenland in 2007 M.P. HEIDE-JØRGENSEN*, K.L. LAIDRE*+, M. SIMON transect survey of fin whales (Balaenoptera physalus) conducted off West Greenland in 2007 was used of the survey plane. The abundance estimate furthermore only represents the coastal areas of West Greenland

  12. EXPERIMENTAL EVALUATION OF CHEMICAL SEQUESTRATION OF CARBON DIOXIDE IN DEEP AQUIFER MEDIA - PHASE II

    SciTech Connect (OSTI)

    Neeraj Gupta; Bruce Sass; Jennifer Ickes

    2000-11-28T23:59:59.000Z

    In 1998 Battelle was selected by the U.S. Department of Energy's (DOE) National Energy Technology Laboratory (NETL) under a Novel Concepts project grant to continue Phase II research on the feasibility of carbon dioxide (CO{sub 2}) sequestration in deep saline formations. The focus of this investigation is to conduct detailed laboratory experiments to examine factors that may affect chemical sequestration of CO{sub 2} in deep saline formations. Reactions between sandstone and other geologic media from potential host reservoirs, brine solutions, and CO{sub 2} are being investigated under high-pressure conditions. Some experiments also include sulfur dioxide (SO{sub 2}) gases to evaluate the potential for co-injection of CO{sub 2} and SO{sub 2} related gases in the deep formations. In addition, an assessment of engineering and economic aspects is being conducted. This current Technical Progress Report describes the status of the project as of September 2000. The major activities undertaken during the quarter included several experiments conducted to investigate the effects of pressure, temperature, time, and brine composition on rock samples from potential host reservoirs. Samples (both powder and slab) were taken from the Mt. Simon Sandstone, a potential CO{sub 2} host formation in the Ohio, the Eau Claire Shale, and Rome Dolomite samples that form the caprock for Mt. Simon Sandstone. Also, a sample with high calcium plagioclase content from Frio Formation in Texas was used. In addition, mineral samples for relatively pure Anorthite and glauconite were experimented on with and without the presence of additional clay minerals such as kaolinite and montmorillonite. The experiments were run for one to two months at pressures similar to deep reservoirs and temperatures set at 50 C or 150 C. Several enhancements were made to the experimental equipment to allow for mixing of reactants and to improve sample collection methods. The resulting fluids (gases and liquids) as well as the rock samples were characterized to evaluate the geochemical changes over the experimental period. Preliminary results from the analysis are presented in the report. More detailed interpretation of the results will be presented in the technical report at the end of Phase II.

  13. Visualizing the Surface Infrastructure Used to Move 2 MtCO2/year from the Dakota Gasification Company to the Weyburn CO2 Enhanced Oil Recovery Project: Version of July 1, 2009

    SciTech Connect (OSTI)

    Dooley, James J.

    2009-07-09T23:59:59.000Z

    Google Earth Pro has been employed to create an interactive flyover of the world’s largest operational carbon dioxide capture and storage project. The visualization focuses on the transport and storage of 2 MtCO2/year which is captured from the Dakota Gasification Facility (Beula, North Dakota) and transported 205 miles and injected into the Weyburn oil field in Southeastern Saskatchewan.

  14. Arnaud Rykner, L'incomprhensible dans le tapis (Sur Henry James) , in L'Incomprhensible. Littrature, rel, visuel, sous la dir. de M.-T. Mathet, Paris, L'Harmattan,

    E-Print Network [OSTI]

    Boyer, Edmond

    'Incompréhensible. Littérature, réel, visuel, sous la dir. de M.-T. Mathet, Paris, L'Harmattan, coll. Champs visuels, 2003, p.-T. Mathet, Paris, L'Harmattan, coll. Champs visuels, 2003, p. 137-165. 2 Georges Didi-Huberman et dans un

  15. Simon Fraser University Annual Report Fiscal Year 1998/99 At the heart of the University, the SFU LAt the heart of the University, the SFU LAt the heart of the University, the SFU LAt the heart of the University, the SFU Library is dedicated toibrary is d

    E-Print Network [OSTI]

    SFU Simon Fraser University Annual Report Fiscal Year 1998/99 At the heart of the University, the SFU LAt the heart of the University, the SFU LAt the heart of the University, the SFU LAt the heart

  16. Faddeev-Senjanovic Quantization of SU(n) N=2 Supersymmetric Gauge Field System with Non-Abelian Chern-Simons Topological Term and Its Fractional Spin

    E-Print Network [OSTI]

    Yong-Chang Huang; Qiu-Hong Huo

    2009-01-13T23:59:59.000Z

    Using Faddeev-Senjanovic path integral quantization for constrained Hamilton system, we quantize SU(n) N=2 supersymmetric gauge field system with non-abelian Chern-Simons topological term in 2+1 dimensions, and use consistency of a gauge condition naturally to deduce another gauge condition. Further, we get the generating functional of Green function in phase space, deduce the angular momentum based on the global canonical Noether theorem at quantum level, obtain the fractional spin of this supersymmetric system, and show that the total angular momentum has the orbital angular momentum and spin angular momentum of the non-abelian gauge field. Finally, we find out the anomalous fractional spin and discover that the fractional spin has the contributions of both the group superscript components and the A_0^s (x) charge.

  17. Interview of Simon Schaffer

    E-Print Network [OSTI]

    Schaffer, Simon

    2008-11-17T23:59:59.000Z

    lot; I came back to Cambridge and could see what my career was going to be Third session 2nd July 2008 0:09:07 Think the main theme of my professional lift has been working out the consequences of the idea that communicating knowledge is also making it... .; working with students, teams planning museum exhibitions, broadcasters, has provided me with places where there are opportunities to find out more; have spent the last twenty-five years doing television programmes on the history of science; began when...

  18. Simon Monard Cell Sorting

    E-Print Network [OSTI]

    Hz Amplitude Variables #12;The number of particles per second that the sorter is able to process Sort Speed #12 are indispensable for biological research. They are expensive and complicated. Generally run by dedicated operators;The limiting factor is the number of droplets generated/sec =DDF A high DDF needs high pressure

  19. Presupposing Mandy Simons

    E-Print Network [OSTI]

    Spirtes, Peter

    -cleft construction, illustrated in (3): (3) It was (wasn't) President Obama who went to Afghanistan. The speaker of this sentence appears to take for granted that some salient individual went to Afghanistan, and to be making

  20. RESEARCH ARTICLE Simone Zuccher

    E-Print Network [OSTI]

    Zuccher, Simone

    in the limit of a very small radius, leading to a very specific area, known as the ``fiber coating, such as (1) a parallel conductor (the normal metal) to be used in case of loss of super- conductivity of treatment. The mean final thickness h0 depends on the wire radius r0, the fluid density q, surface tension r