National Library of Energy BETA

Sample records for dl dolomitic limestone

  1. The effects of calcitic and dolomitic limestone rates and particle sizes on soil chemical changes, plant nutrient concentration, and yields of corn and Coastal bermudagrass on two acid Texas soils 

    E-Print Network [OSTI]

    Haby, Vincent A

    1969-01-01

    significantly increased Ca to 18 inches, while only the 6-ton/acre rate of fine dolomitic lime- stone increased Ca into the same depth. All dolomitic treatments increased Mg to 18-inch depths. Sampling deeper than 18 inches in the 6 ton/acre dolomitic fine... formed soluble salts with the NO and were leached down as Ca(ND ) Limestone treatments did not produce significant increases in yield of corn or Coastal bermudagrass. The no-lime plots produced 70 bushels of corn and 9. 2 tons of oven-dry Coastal...

  2. Indiana's Trenton limestone geology

    SciTech Connect (OSTI)

    Keith, B.D.

    1981-03-01

    The term Trenton limestone is the stratigraphic designation for a unit in northern Indiana composed of both limestone and dolomite. The Trenton is Middle Ordovician (Champlainian) in age and related clearly to the position of the Cincinnati arch. The limestone is thickest in northern Indiana and thins toward the southeast. Isopach maps of the Trenton limestone and the Maquoketa group above it indicate that the Cincinnati arch did not exist as a positive structural influence to sedimentation until after Ordovician time. Preliminary results of an ongoing study of the Trenton reservoir suggest that second and tertiary recovery there will be limited. Because of the low density of drilling on the Trenton's north flank, however, large areas remain virtually untested; more structural or stratigraphic traps similar to those of the Urbana field could exist. A better definition of the distribution of the dolomite facies will lead to a more accurate assessment of the Trenton's potential.

  3. Doppler Lidar (DL) Handbook

    SciTech Connect (OSTI)

    Newsom, RK

    2012-02-13

    The Doppler lidar (DL) is an active remote sensing instrument that provides range- and time-resolved measurements of radial velocity and attenuated backscatter. The principle of operation is similar to radar in that pulses of energy are transmitted into the atmosphere; the energy scattered back to the transceiver is collected and measured as a time-resolved signal. From the time delay between each outgoing transmitted pulse and the backscattered signal, the distance to the scatterer is inferred. The radial or line-of-sight velocity of the scatterers is determined from the Doppler frequency shift of the backscattered radiation. The DL uses a heterodyne detection technique in which the return signal is mixed with a reference laser beam (i.e., local oscillator) of known frequency. An onboard signal processing computer then determines the Doppler frequency shift from the spectra of the heterodyne signal. The energy content of the Doppler spectra can also be used to determine attenuated backscatter.

  4. Experimental deformation of natural and synthetic dolomite 

    E-Print Network [OSTI]

    Davis, Nathan Ernest

    2005-11-01

    ???????????.?.?? 19 5 Strain rate-stepping experiments coarse-grained dolomite ...???? 20 6 Strain rate-stepping experiments fine-grained dolomite ???....?.. 21 7 Temperature-stepping experiments coarse-grained dolomite ?..?? 22 8...; Erickson, 1994). Early experimental studies are in broad agreement with these field studies, with fracture and flow strengths significantly higher for dolomite (Turner et al, 1954; Handin and Fairbairn, 1955; Higgs and Handin, 1959; Handin et al., 1967...

  5. ARM - Instrument - dl

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

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  6. Treating tar sands formations with dolomite

    DOE Patents [OSTI]

    Vinegar, Harold J.; Karanikas, John Michael

    2013-10-15

    A method for treating a karsted formation containing heavy hydrocarbons and dolomite includes providing heat to at least part of one or more karsted layers in the formation from one or more heaters located in the karsted layers. A temperature in at least one of the karsted layers is allowed to reach a decomposition temperature of dolomite in the formation. The dolomite is allowed to decompose and at least some hydrocarbons are produced from at least one of the karsted layers of the formation.

  7. Treating tar sands formations with dolomite

    DOE Patents [OSTI]

    Vinegar, Harold J.; Karanikas, John Michael

    2010-06-08

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

  8. Dolomite Mountains and the origin of the dolomite rock of which they mainly consist: historical developments and new

    E-Print Network [OSTI]

    Gilli, Adrian

    widely to be the geographical area where dolomite was discovered. The Italian geologist Giovanni Arduino

  9. The Mississippian Leadville Limestone Exploration Play, Utah and Colorado-Exploration Techniques and Studies for Independents

    SciTech Connect (OSTI)

    Thomas Chidsey

    2008-09-30

    The Mississippian (late Kinderhookian to early Meramecian) Leadville Limestone is a shallow, open-marine, carbonate-shelf deposit. The Leadville has produced over 53 million barrels (8.4 million m{sup 3}) of oil/condensate from seven fields in the Paradox fold and fault belt of the Paradox Basin, Utah and Colorado. The environmentally sensitive, 7500-square-mile (19,400 km{sup 2}) area that makes up the fold and fault belt is relatively unexplored. Only independent producers operate and continue to hunt for Leadville oil targets in the region. The overall goal of this study is to assist these independents by (1) developing and demonstrating techniques and exploration methods never tried on the Leadville Limestone, (2) targeting areas for exploration, (3) increasing deliverability from new and old Leadville fields through detailed reservoir characterization, (4) reducing exploration costs and risk especially in environmentally sensitive areas, and (5) adding new oil discoveries and reserves. The final results will hopefully reduce exploration costs and risks, especially in environmentally sensitive areas, and add new oil discoveries and reserves. The study consists of three sections: (1) description of lithofacies and diagenetic history of the Leadville at Lisbon field, San Juan County, Utah, (2) methodology and results of a surface geochemical survey conducted over the Lisbon and Lightning Draw Southeast fields (and areas in between) and identification of oil-prone areas using epifluorescence in well cuttings from regional wells, and (3) determination of regional lithofacies, description of modern and outcrop depositional analogs, and estimation of potential oil migration directions (evaluating the middle Paleozoic hydrodynamic pressure regime and water chemistry). Leadville lithofacies at Libon field include open marine (crinoidal banks or shoals and Waulsortian-type buildups), oolitic and peloid shoals, and middle shelf. Rock units with open-marine and restricted-marine facies constitute a significant reservoir potential, having both effective porosity and permeability when dissolution of skeletal grains, followed by dolomitization, has occurred. Two major types of diagenetic dolomite are observed in the Leadville Limestone at Lisbon field: (1) tight 'early' dolomite consisting of very fine grained (<5 {micro}m), interlocking crystals that faithfully preserve depositional fabrics; and (2) porous, coarser (>100-250 {micro}m), rhombic and saddle crystals that discordantly replace limestone and earlier very fine grained dolomite. Predating or concomitant with late dolomite formation are pervasive leaching episodes that produced vugs and extensive microporosity. Most reservoir rocks within Lisbon field appear to be associated with the second, late type of dolomitization and associated leaching events. Other diagenetic products include pyrobitumen, syntaxial cement, sulfide minerals, anhydrite cement and replacement, and late macrocalcite. Fracturing (solution enlarged) and brecciation (autobrecciation) caused by hydrofracturing are widespread within Lisbon field. Sediment-filled cavities, related to karstification of the exposed Leadville, are present in the upper third of the formation. Pyrobitumen and sulfide minerals appear to coat most crystal faces of the rhombic and saddle dolomites. The fluid inclusion and mineral relationships suggest the following sequence of events: (1) dolomite precipitation, (2) anhydrite deposition, (3) anhydrite dissolution and quartz precipitation, (4) dolomite dissolution and late calcite precipitation, (5) trapping of a mobile oil phase, and (6) formation of bitumen. Fluid inclusions in calcite and dolomite display variable liquid to vapor ratios suggesting reequilibration at elevated temperatures (50 C). Fluid salinities exceed 10 weight percent NaCl equivalent. Low ice melting temperatures of quartz- and calcite-hosted inclusions suggest chemically complex Ca-Mg-bearing brines associated with evaporite deposits were responsible for mineral deposition. The overall conclusion from th

  10. DL-36361 UC-414 I

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

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

    E-Print Network [OSTI]

    Iwasaki, Takeshi

    1970-01-01

    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...

  12. Diagenetic features of Trenton Limestone in northern Indiana: petrographic evidence for Late (Mesogenetic) Dolostone

    SciTech Connect (OSTI)

    Fara, D.R.

    1986-08-01

    Three conventional cores of the entire Trenton section were examined in detail by in-depth visual description, analysis of more than 250 thin sections, scanning electron microscopy, and x-ray diffraction. The cores are located in the northern half of Indiana where they span the major dolostone pinch-out that is the trap for the prolific Trenton oil and gas field. The Trenton Limestone is completely dolomitized in northern Indiana. Dolostone abundance decreases to the south where the dolostone is restricted to the upper few feet of the formation. Two major types of dolostone are recognized. The top 5-20 ft of the Trenton cores consists of medium crystalline nonporous xenotopic ferroan dolostone. Mesogenetic dewatering of the overlying Maquoketa shale is the proposed dolomitizing mechanisms for this ferroan dolostone cap. Below the ferroan dolostone cap in northern Indiana is coarsely crystalline dolostone, which consists of thin intercalated subfacies of porous idiotopic and nonporous xenotopic dolostone. This is the dominant dolostone type and is the reservoir in the Trenton field. The coarsely crystalline dolostone postdates the ferroan dolostone cap, chert nodule formation, and initial pressure solution. Therefore, this dolostone is considered to have formed relatively late in the diagenetic history of the Trenton under mesogenetic conditions. In the northernmost core, nearly all of the secondary dolomitic porosity is plugged by poikilotopic gypsum and minor amounts of calcite and celestite. Other diagenetic features observed in Trenton are also discussed, including silicification, ferroan calcite cement, upper Trenton contact formation, hardgrounds, and pressure solution.

  13. ACM Digital Library )http://www.acm.org/dl(

    E-Print Network [OSTI]

    Lehmann, Daniel

    ­ 111 © , ACM Digital Library ) ( )http://www.acm.org/dl( Web of Science- . . ACM Digital Library -Association for Computing Machinery (ACM), . . " -ACM. ( " :IEEE : IEEE Xplore) : 1.:http://www.acm.org/dl 2. (http

  14. Summary of Research through Phase II/Year 2 of Initially Approved 3 Phase/3 Year Project - Establishing the Relationship between Fracture-Related Dolomite and Primary Rock Fabric on the Distribution of Reservoirs in the Michigan Basin

    SciTech Connect (OSTI)

    G. Grammer

    2007-09-30

    This final scientific/technical report covers the first 2 years (Phases I and II of an originally planned 3 Year/3 Phase program). The project was focused on evaluating the relationship between fracture-related dolomite and dolomite constrained by primary rock fabric in the 3 most prolific reservoir intervals in the Michigan Basin. The characterization of select dolomite reservoirs was the major focus of our efforts in Phases I and II of the project. Structural mapping and log analysis in the Dundee (Devonian) and Trenton/Black River (Ordovician) suggest a close spatial relationship among gross dolomite distribution and regional-scale, wrench fault-related NW-SE and NE-SW structural trends. A high temperature origin for much of the dolomite in these 2 studied intervals (based upon fluid inclusion homogenization temperatures and stable isotopic analyses,) coupled with persistent association of this dolomite in reservoirs coincident with wrench fault-related features, is strong evidence for these reservoirs being influenced by hydrothermal dolomitization. In the Niagaran (Silurian), there is a general trend of increasing dolomitization shelfward, with limestone predominant in more basinward positions. A major finding is that facies types, when analyzed at a detailed level, are directly related to reservoir porosity and permeability in these dolomites which increases the predictability of reservoir quality in these units. This pattern is consistent with our original hypothesis of primary facies control on dolomitization and resulting reservoir quality at some level. The identification of distinct and predictable vertical stacking patterns within a hierarchical sequence and cycle framework provides a high degree of confidence at this point that the results should be exportable throughout the basin. Much of the data synthesis and modeling for the project was scheduled to be part of Year 3/Phase III, but the discontinuation of funding after Year 2 precluded those efforts. Therefore, the results presented in this document are not final, and in many cases represent a report of 'progress to date' as numerous tasks were scheduled to extend into Year 3.

  15. Preservation of limestone material culture with siloxanes 

    E-Print Network [OSTI]

    Miller, Ann Elizabeth

    2001-01-01

    throughout the world. Because of the porous structure of limestone, it is unfortunately relatively susceptible to degradation, especially under modern polluted atmospheric conditions. Over time this degradation takes the form of dissolution, peeling...

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

    E-Print Network [OSTI]

    Haszeldine, Stuart

    Disseminated `jigsaw piece' dolomite in Upper Jurassic shelf sandstones, Central North Sea authigenesis in highly bioturbated marine sandstones. The dolomite is present throughout the Franklin Sandstone throughout the sandstones, irrespective of detrital grain size or clay content. Dolomite authigenesis

  17. Prevention of Salt Damage inPrevention of Salt Damage in LimestoneLimestone

    E-Print Network [OSTI]

    Petta, Jason

    Prevention of Salt Damage inPrevention of Salt Damage in LimestoneLimestone Kathy Whitaker.jpg #12;Introduction: Sodium Sulfate Thenardite: Na2SO4 Mirabilite: Na2SO4·10H2O Salt exposure for 5 weeks the stone by capillary uptake of water containing the dissolved salt. Degradation of mortar. #12

  18. Shallow meteoric alteration and burial diagenesis of massive dolomite in the Castle Reef Formation, northwest Montana 

    E-Print Network [OSTI]

    Whitsitt, Philip Mark

    1989-01-01

    replacement. Partial dissolution of the replacive dolomite and subsequent precipitation of brightly luminescent dolomite overgrowths ( g 0= -5. 3 to -2. 5 40) occurred in shallow burial meteoric 18 environments. Distribution of the bright overgrowths... indicates flow pathways similar to those recognized by g 0 trends in the replacive dolomite. A final stage of red luminescent dolomite formed after further compaction and local dissolution of the bright overgrowths and prior to hydrocarbon migration...

  19. Isdolomiteefficientinacidminedrainagepassiveremediation? Is dolomite efficient in Acid Mine Drainage

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    de Mina (Acid Mine Drainage AMD) · Bajos valores de pH · Altas concentraciones de SO4, Fe, Al yIsdolomiteefficientinacidminedrainagepassiveremediation? Is dolomite efficient in Acid Mine Drainage passive remediation? Francesco Offeddu Instituto de Diagnóstico Ambiental y Estudios del Agua

  20. Limestone, Oklahoma: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: EnergyLebanonTexas:Hill,Photovoltaic JumpLimestone, Oklahoma:

  1. Mathematical Modeling on Open Limestone Channel

    E-Print Network [OSTI]

    Bandstra, Joel; Wu, Naiyi

    2014-01-01

    Acid mine drainage (AMD) is the outflow of acidic water from metal mines or coal mines. When exposed to air and water, metal sulfides from the deposits of the mines are oxidized and produce acid, metal ions and sulfate, which lower the pH value of the water. An open limestone channel (OLC) is a passive and low cost way to neutralize AMD. The dissolution of calcium into the water increases the pH value of the solution. A differential equation model is numerically solved to predict the variation of concentration of each species in the OLC solution. The diffusion of Calcium due to iron precipitates is modeled by a linear equation. The results give the variation of pH value and the concentration of Calcium.

  2. ACL-IJCNLP 2009 NLPIR4DL 2009

    E-Print Network [OSTI]

    and prototype system for faceted navigation in scholarly digital libraries, whereas the study by Wan et alACL-IJCNLP 2009 NLPIR4DL 2009 2009 Workshop on Text and Citation Analysis for Scholarly Digital Libraries Proceedings of the Workshop 7 August 2009 Suntec, Singapore #12;Production and Manufacturing

  3. Acidizing Dolomite Reservoirs Using HCL Acid Prepared with Seawater: Problems and Solutions 

    E-Print Network [OSTI]

    Arensman, Dennis G

    2014-04-28

    Seawater is the only viable water source for many offshore wells with dolomite formations. For these wells it is important to use compatible fluids when stimulating to avoid damaging the formation with calcium sulfate precipitation. Much work has...

  4. Microstructures and Rheology of a Limestone-Shale Thrust Fault 

    E-Print Network [OSTI]

    Wells, Rachel Kristen

    2011-02-22

    AND RHEOLOGY OF A LIMESTONE-SHALE THRUST FAULT A Thesis by RACHEL KRISTEN WELLS 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... 2010 Major Subject: Geology MICROSTRUCTURES AND RHEOLOGY OF A LIMESTONE-SHALE THRUST FAULT A Thesis by RACHEL KRISTEN WELLS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

  5. The foundational inequalities of D.L. Burkholder and some of their ...

    E-Print Network [OSTI]

    2011-08-03

    Aug 3, 2011 ... martingale inequalities of D.L. Burkholder to Lp-bounds for singular integral operators, concentrating on the Hilbert transform, first and sec-.

  6. 87Sr/86Sr Chronostratigraphy and Dolomitization History of the Seroe Domi Formation, Curaao, Netherlands Antilles

    E-Print Network [OSTI]

    Fouke, Bruce W.

    . A.J. Melillo, Chevron U.S.A. Inc., 935 Gravier Street, New Orleans, LA 70112 KEYWORDS: SEDIMENTOLOGY, STRATIGRAPHY, DOLOMITIZATION, SR ISOTOPE AGE MODELS, MIXING ZONE, MIOCENE, PLIOCENE, PLEISTOCENE, WATER-ROCK INTERACTION CONTENT Summary 1. Introduction 2. Geological Setting 3. Methods 4. Lithofacies and Stratigraphy 5

  7. Effective stress law for the permeability of a limestone

    E-Print Network [OSTI]

    Ghabezloo, Siavash; Guédon, Sylvine; Martineau, François

    2008-01-01

    The effective stress law for the permeability of a limestone is studied experimentally by performing constant head permeability tests in a triaxial cell with different conditions of confining pressure and pore pressure. Test results have shown that a pore pressure increase and a confining pressure decrease both result in an increase of the permeability, and that the effect of the pore pressure change on the variation of the permeability is more important than the effect of a change of the confining pressure. A power law is proposed for the variation of the permeability with the effective stress. The permeability effective stress coefficient increases linearly with the differential pressure and is greater than one as soon the differential pressure exceeds few bars. The test results are well reproduced using the proposed permeability-effective stress law. A conceptual pore-shell model based on a detailed observation of the microstructure of the studied limestone is proposed. This model is able to explain the ex...

  8. Fracture testing of Edwards limestone: a statistical treatment 

    E-Print Network [OSTI]

    Redding, David Earl

    1993-01-01

    . This study addresses the behavior of Edwards limestone when subjected to rubber fracture testing. The understanding of a material's behavior under tensile stress loading is limited to a few but highly significant applications. Petroleum reservoir problems.... Next, the effectiveness of assigning statistical distributions to represent an empirical distribution function is The citations on the following pages follow the style of the international Journal of Rock Mechanics and Mining Sciences & Geomechanics...

  9. ITP Glass: Industrial Glass Bandwidth Analysis Final Report,...

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

    replacing limestone or dolomitic limestone with calumite, burnt dolomite, or quick lime, as well as Synsil (a calcium magnesium silicate). Because of the balance of energy...

  10. Intermediate-scale tests of sodium interactions with calcite and dolomite aggregate concretes. [LMFBR

    SciTech Connect (OSTI)

    Randich, E.; Acton, R.U.

    1983-09-01

    Two intermediate-scale tests were performed to compare the behavior of calcite and dolomite aggregate concretes when attacked by molten sodium. The tests were performed as part of an interlaboratory comparison between Sandia National Laboratories and Hanford Engineering Development Laboratories. Results of the tests at Sandia National Laboratories are reported here. The results show that both concretes exhibit similar exothermic reactions with molten sodium. The large difference in reaction vigor suggested by thermodynamic considerations of CO/sub 2/ release from calcite and dolomite was not realized. Penetration rates of 1.4 to 1.7 mm/min were observed for short periods of time with reaction zone temperatures in excess of 800/sup 0/C during the energetic attack. The penetration was not uniform over the entire sodium-concrete contact area. Rapid attack may be localized due to inhomogeneities in the concrete. The chemical reaction zone is less then one cm thick for the calcite concrete but is about seven cm thick for the dolomite concrete.

  11. 2015.07-[] OKhttp://www.dl.itc.u-tokyo.ac.jp/gacos/index.html

    E-Print Network [OSTI]

    Goda, Keisuke

    Works http://www.dl.itc.u-tokyo.ac.jp/gacos/faq/refw.html TREE CiNii Articles Web of Science OPAC #122015.07- [] 1 OKhttp://www.dl.itc.u-tokyo.ac.jp/gacos/index.html TREE TREE p.3 MyOPAC TREE p.5 DOI p.6 OPAC TREE p.7 E-JOURNAL PORTAL p.9 CiNii Articles p.10-11 Web of Science

  12. Modeling ofHybrid (Heat Radiation and Microwave) High Temperature Processing ofLimestone

    E-Print Network [OSTI]

    Yakovlev, Vadim

    Modeling ofHybrid (Heat Radiation and Microwave) High Temperature Processing ofLimestone Shawn M (electromagnetic and thermal) modeling to cover practically valuable scenarios of hybrid (heat radiation is applied to the process of hybrid heating of cylindrical samples of limestone in Ceralink's MAT TM kiln

  13. Fine limestone additions to regulate setting in high volume fly ash mixtures Dale P. Bentz a,

    E-Print Network [OSTI]

    Bentz, Dale P.

    Fine limestone additions to regulate setting in high volume fly ash mixtures Dale P. Bentz a September 2011 Keywords: Blended cement High volume fly ash Isothermal calorimetry Limestone Particle size Setting Strength Ternary blend a b s t r a c t High volume fly ash (HVFA) concrete mixtures are being

  14. Hydration mechanisms of ternary Portland cements containing limestone powder and fly ash

    SciTech Connect (OSTI)

    De Weerdt, K.; Haha, M. Ben; Le Saout, G.; Kjellsen, K.O.; Justnes, H.; Lothenbach, B.

    2011-03-15

    The effect of minor additions of limestone powder on the properties of fly ash blended cements was investigated in this study using isothermal calorimetry, thermogravimetry (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM) techniques, and pore solution analysis. The presence of limestone powder led to the formation of hemi- and monocarbonate and to a stabilisation of ettringite compared to the limestone-free cements, where a part of the ettringite converted to monosulphate. Thus, the presence of 5% of limestone led to an increase of the volume of the hydrates, as visible in the increase in chemical shrinkage, and an increase in compressive strength. This effect was amplified for the fly ash/limestone blended cements due to the additional alumina provided by the fly ash reaction.

  15. SLAM: a sodium-limestone concrete ablation model

    SciTech Connect (OSTI)

    Suo-Anttila, A.J.

    1983-12-01

    SLAM is a three-region model, containing a pool (sodium and reaction debris) region, a dry (boundary layer and dehydrated concrete) region, and a wet (hydrated concrete) region. The model includes a solution to the mass, momentum, and energy equations in each region. A chemical kinetics model is included to provide heat sources due to chemical reactions between the sodium and the concrete. Both isolated model as well as integrated whole code evaluations have been made with good results. The chemical kinetics and water migration models were evaluated separately, with good results. Several small and large-scale sodium limestone concrete experiments were simulated with reasonable agreement between SLAM and the experimental results. The SLAM code was applied to investigate the effects of mixing, pool temperature, pool depth and fluidization. All these phenomena were found to be of significance in the predicted response of the sodium concrete interaction. Pool fluidization is predicted to be the most important variable in large scale interactions.

  16. Origin of high Zn contents in Jurassic limestone of the Jura mountain range and the Burgundy: evidence from Zn speciation

    E-Print Network [OSTI]

    Introduction Jurassic limestone of the Jura mountain range (JMR) and the Burgundy bear anomalously high zincOrigin of high Zn contents in Jurassic limestone of the Jura mountain range and the Burgundy in Jurassic limestone of the Jura mountain range (JMR) and the Burgundy (B), we investigated four loca- tions

  17. paper submission to EuroDL'99, Paris Metadata for Photographs: from Digital Library to Multimedia

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    paper submission to EuroDL'99, Paris Metadata for Photographs: from Digital Library to Multimedia Libraries provide access to an increasing variety of digital multimedia information, including images, photos, sound and video. For many years Libraries and Digital Libraries have been relying

  18. Kinetics of on Goethite: A Pressure Relaxation Study. P. G. GROSSL*, MJ. EICK, D.L.

    E-Print Network [OSTI]

    Sparks, Donald L.

    I Kinetics of on Goethite: A Pressure Relaxation Study. P. G. GROSSL*, MJ. EICK, D.L. SPARKS, and C the adsorption/desorption of the oxyanions, chromate and arsenate, on goethite (a-FeOOH). Experimental conditions included equilibration of a 10 g L-l goethite (surface area 52 m2 g-l) suspension with initial total

  19. Measurement of the B -> Dl nu branching fractions and form factor

    E-Print Network [OSTI]

    Ammar, Raymond G.; Baringer, Philip S.; Bean, Alice; Besson, David Zeke; Coppage, Don; Darling, C.; Davis, Robin E. P.; Kotov, S.; Kravchenko, I.; Kwak, Nowhan; Zhou, L.

    1999-05-01

    Using a sample of 3.3 x 10(6) B-meson decays collected with the CLEO detector at the Cornell Electron Storage Ring, we have studied B- --> D(0)l(-) and (B) over bar(0) --> D(+)l(-) decays, where l(-) can be either e...

  20. A. E. K.Ris Ris-M-Dl^ Title and author(s)

    E-Print Network [OSTI]

    A. E. K.Risø Risø-M-Dl^ Title and author(s) Application of Statistical Linear El -it:tic Fracture illustrations Date October 1 -}? $ Department or group R e a c t o r Group's own registration number(s) 25 crack, same time and ated as statisti- ty functions, tial cracks, f failure prob- program utilizing ce

  1. Effect of limestone reactivity on the digestibility of nutrients in sorghum based diets fed to lactating Holstein cows 

    E-Print Network [OSTI]

    Malasri, Kriangchitt Banphabutr

    1981-01-01

    University, for providing limestone reactivity data, to Mr. Gary Morris of the Iowa Limestone Company for pro- viding limestones and to Dr. Charles E. Gates, Mr. Phil Spector, Mr. Angel A. Custodio and Dr. H. Joseph Newton for help in statistical design...-concentrate-WCS ratio on a dry basis. The concentrate composition is in Table 1. Table 2 shows different reactivities of limestone mixed in the concentrates. According to the data on reactivity measurements in Table 2, limestone 2 is the best, lime- -stone 1...

  2. Benefits and costs of tourism and outdoor recreation in the Natural Park of the Ampezzo Dolomites (Veneto-Italy)

    E-Print Network [OSTI]

    Tempesta, Tiziano

    1 Benefits and costs of tourism and outdoor recreation in the Natural Park of the Ampezzo Dolomites and costs. This is particularly important in the protected areas in the mountains, where ecosystems are fragile and tourism impact may be very dangerous. Nowadays, there is a great lack of information on costs

  3. Interpretations of Tracer Tests Performed in the Culebra Dolomite at the Waste Isolation Pilot Plant Site

    SciTech Connect (OSTI)

    MEIGS,LUCY C.; BEAUHEIM,RICHARD L.; JONES,TOYA L.

    2000-08-01

    This report provides (1) an overview of all tracer testing conducted in the Culebra Dolomite Member of the Rustler Formation at the Waste Isolation Pilot Plant (WPP) site, (2) a detailed description of the important information about the 1995-96 tracer tests and the current interpretations of the data, and (3) a summary of the knowledge gained to date through tracer testing in the Culebra. Tracer tests have been used to identify transport processes occurring within the Culebra and quantify relevant parameters for use in performance assessment of the WIPP. The data, especially those from the tests performed in 1995-96, provide valuable insight into transport processes within the Culebra. Interpretations of the tracer tests in combination with geologic information, hydraulic-test information, and laboratory studies have resulted in a greatly improved conceptual model of transport processes within the Culebra. At locations where the transmissivity of the Culebra is low (< 4 x 10{sup -6} m{sup 2}/s), we conceptualize the Culebra as a single-porosity medium in which advection occurs largely through the primary porosity of the dolomite matrix. At locations where the transmissivity of the Culebra is high (> 4 x 10{sup -6} m{sup 2}/s), we conceptualize the Culebra as a heterogeneous, layered, fractured medium in which advection occurs largely through fractures and solutes diffuse between fractures and matrix at multiple rates. The variations in diffusion rate can be attributed to both variations in fracture spacing (or the spacing of advective pathways) and matrix heterogeneity. Flow and transport appear to be concentrated in the lower Culebra. At all locations, diffusion is the dominant transport process in the portions of the matrix that tracer does not access by flow.

  4. Fluid distribution effect on sonic attenuation in partially saturated limestones

    SciTech Connect (OSTI)

    Cadoret, T. [Elf Exploration Production, Pau (France). Dept. Sismique] [Elf Exploration Production, Pau (France). Dept. Sismique; Mavko, G. [Stanford Univ., CA (United States)] [Stanford Univ., CA (United States); Zinszner, B. [Inst. Francais du Petrole, Rueil Malmaison (France). Lab. de Physique des Roches] [Inst. Francais du Petrole, Rueil Malmaison (France). Lab. de Physique des Roches

    1998-01-01

    Extensional and torsional wave-attenuation measurements are obtained at a sonic frequency around 1 kHz on partially saturated limestones using large resonant bars, 1 m long. To study the influence of the fluid distribution, the authors use two different saturation methods: drying and depressurization. When water saturation (S{sub w}) is higher than 70%, the extensional wave attenuation is found to depend on whether the resonant bar is jacketed. This can be interpreted as the Biot-Gardner-White effect. The experimental results obtained on jacketed samples show that, during a drying experiment, extensional wave attenuation is influenced strongly by the fluid content when S{sub w} is between approximately 70% and 100%. This sensitivity to fluid saturation vanishes when saturation is obtained through depressurization. Using a computer-assisted tomographic (CT) scan, the authors found that, during depressurization, the fluid distribution is homogeneous at the millimetric scale at all saturations. In contrast, during drying, heterogeneous saturation was observed at high water-saturation levels. Thus, the authors interpret the dependence of the extensional wave attenuation upon the saturation method as principally caused by a fluid distribution effect. Torsional attenuation shows no sensitivity to fluid saturation for S{sub w} between 5% and 100%.

  5. ON THE USE OF LIMESTONE DRAINS IN THE PASSIVE TREATMENT OF ACID MINE DRAINAGE (AMD).

    E-Print Network [OSTI]

    Aubertin, Michel

    ON THE USE OF LIMESTONE DRAINS IN THE PASSIVE TREATMENT OF ACID MINE DRAINAGE (AMD). Louis R mining effluent ([metals, [Al], [sulfates], dissolved oxygen, acidity, pH), desired residence time

  6. Trace fossils of Fort Hays Limestone Member of Niobrara Chalk (Upper Cretaceous), west-central Kansas

    E-Print Network [OSTI]

    Frey, R. W.

    1970-07-17

    THE UNIVERSITY OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS ARTICLE 53 (CRETACEOUS 2) TRACE FOSSILS OF FORT HAYS LIMESTONE MEMBER OF NIOBRARA CHALK (UPPER CRETACEOUS), WEST-CENTRAL KANSAS ROBERT W. FREY University of Georgia Marine Institute, Sapelo... Figures, 10 Plates, 4 Tables TRACE FOSSILS OF FORT HAYS LIMESTONE MEMBER OF NIOBRARA CHALK (UPPER CRETACEOUS), WEST-CENTRAL KANSAS' ROBERT W. FREY University of Georgia Marine Institute, Sapelo Island, Georgia CONTENTS PAGE PAGE ABSTRACT 5 Thalassinoides...

  7. Reservoir rock properties of the Arun limestone (Miocene), Arun field, North Sumatra, Indonesia 

    E-Print Network [OSTI]

    Saman, Suryadi

    1995-01-01

    -dolomitized rocks (2.27 to 2.49 gr/cm3 and 14 to 35 API). Three geological factors: sea-level change, paleoclimate, and tectonic setting during Lower to Middle Miocene affected the reservoir quality of the Arun buildup. Uplift of the North Sumatra basin during Lower...

  8. Reaction of Calcite and Dolomite with In-Situ Gelled Acids, Organic Acids, and Environmentally Friendly Chelating Agent (GLDA) 

    E-Print Network [OSTI]

    Rabie, Ahmed 1978-

    2012-11-16

    rpm and 150?F, (Rabie et al. 2011a).?????.??????????????..... 17 Fig. 2.5 Effect of Disk Rotational Speed on the Calcite Dissolution of Pink Desert Limestone in 0.6M GLDA at 200oF and pH of 1.7, 3.8, and 13, (Rabie et al. 2011b...)????????????????...???? 20 Fig. 2.6 Effect of Disk Rotational Speed on the Dissolution Rate of Pink Desert Limestone in 5 wt% In-situ Gelled HCl at 150oF, (Rabie et al. 2011a)???????????????????????...?? 21 Fig. 2.7 Core Flood Setup????????????...????????... 23 Fig. 3...

  9. Rate of reaction of hydrogen sulfide-carbonyl sulfide mixtures with fully calcined dolomite

    SciTech Connect (OSTI)

    Kamath, V.S.; Petrie, T.W.

    1981-01-01

    Kinetic data are obtained by a gravimetric technique for rates of reaction of calcium oxide in fully calcined dolomite with hydrogen sulfide and hydrogen sulfide-carbonyl sulfide mixtures. The data are presented as values for a factor k defined by d(CAO) = -k (CAO) dt. At 600, 700, and 800 degrees C with (H/sub 2/S) from 0.5% to 5.0% by volume and (H/sub 2/S)/(COS) = 20 for mixtures, expressions for k show apparent rate constants and the dependence on sulfurous gas concentration. For example, at 700 degrees C, k = 1.43 x 10/sup -4/ (h2s) 1.06/S and k = 1.70 x 10/sup -4/ (H/sub 2/S + COS) 1.00/s. Since the date show first-order dependence on calcium oxide, k's for H/sub 2/S alone as the sulfurous gas and h2s-cos mixtures can be obtained for the same sample, free from scatter due to variations from sample to sample. Addition of values for k from runs with H/sub 2/S as the only sulfurous gas and runs with COS as the only sulfurous gas are compared to measurements with actual mixtures. K's for the mixtures are approximately 30% higher than the sum of the appropriate separate values.

  10. Conceptual model for transport processes in the Culebra Dolomite Member, Rustler Formation

    SciTech Connect (OSTI)

    Holt, R.M. [Holt Hydrogeology, Placitas, NM (United States)] [Holt Hydrogeology, Placitas, NM (United States)

    1997-08-01

    The Culebra Dolomite Member of the Rustler Formation represents a possible pathway for contaminants from the Waste Isolation Pilot Plant underground repository to the accessible environment. The geologic character of the Culebra is consistent with a double-porosity, multiple-rate model for transport in which the medium is conceptualized as consisting of advective porosity, where solutes are carried by the groundwater flow, and fracture-bounded zones of diffusive porosity, where solutes move through slow advection or diffusion. As the advective travel length or travel time increases, the nature of transport within a double-porosity medium changes. This behavior is important for chemical sorption, because the specific surface area per unit mass of the diffusive porosity is much greater than in the advective porosity. Culebra transport experiments conducted at two different length scales show behavior consistent with a multiple-rate, double-porosity conceptual model for Culebra transport. Tracer tests conducted on intact core samples from the Culebra show no evidence of significant diffusion, suggesting that at the core scale the Culebra can be modeled as a single-porosity medium where only the advective porosity participates in transport. Field tracer tests conducted in the Culebra show strong double-porosity behavior that is best explained using a multiple-rate model.

  11. Accumulation of surface-applied agricultural limestone in acid soils of east Texas 

    E-Print Network [OSTI]

    Allen, Earl Raymond

    1987-01-01

    limestone sample, the lime dealer who supplied the sample, and its source is found in Appendix A. Analyses of Agricultural t, imestone Analyses performed on each sample of agricultural limestone includea: total dissolution analysis, x-ray diffraction... in the surface of limed soils than in the surface of unlimed soils, and a greater proportion of exchange sites were occupied by Ca2+ in the surface of limed soils than in the subsurface. Aluminum saturation was high enough in the subsoil of some sites...

  12. A comparative molecular analysis of water-filled limestone sinkholes in north-eastern Mexicoemi_2324 226..240

    E-Print Network [OSTI]

    A comparative molecular analysis of water-filled limestone sinkholes in north-eastern Mexicoemi sinkholes (cenotes). These cenotes were explored, mapped, and geochemically and microbiologically sampled (Gary et al., 2006a) is host to several water-filled, limestone sinkholes (cenotes). This system is part

  13. Strontium and carbon isotope stratigraphy of the Late Jurassic shallow marine limestone in western Palaeo-Pacific, northwest Borneo

    E-Print Network [OSTI]

    Gilli, Adrian

    Strontium and carbon isotope stratigraphy of the Late Jurassic shallow marine limestone in western-Pacific a b s t r a c t Strontium and carbon isotope stratigraphy was applied to a 202 m-thick shallow marine al., 2002; Philip, 2003). The stratigraphy and palaeontology of Upper Jurassic limestones have been

  14. EVALUATION OF HYDRAULIC RESIDENCE TIME IN THE LIMESTONE DRAINS OF THE LORRAINE SITE, LATULIPPE, QUBEC1

    E-Print Network [OSTI]

    Aubertin, Michel

    : Acid mine drainage (AMD) remains one of the major environmental problems of the mining industry. When: Acid mine drainage, anoxic limestone drains, tracer tests, hydraulic residence time Introduction Acid, underdrain, or cell. The acidic drainage is intercepted while it is anoxic (underground) and directed

  15. Concrete international /january 2010 35 Portland limestone cement (PLC) is produced by

    E-Print Network [OSTI]

    of supplementary cementitious materials (SCMs) such as slag cement or fly ash. PLCs can, therefore, significantly PLCs are combined with slag cement or fly ash. This article presents results from a recent part fly ash, by mass. The PLC was produced by intergrinding limestone with calcium sulfate

  16. Intermediate-scale sodium-concrete reaction tests with basalt and limestone concrete

    SciTech Connect (OSTI)

    Hassberger, J.A.; Muhlestein, L.D.

    1981-01-01

    Ten tests were performed to investigate the chemical reactions and rate and extent of attack between sodium and basalt and limestone concretes. Test temperatures ranged from 510 to 870/sup 0/C (950 to 1600/sup 0/F) and test times from 2 to 24 hours. Sodium hydroxide was added to some of the tests to assess the impact of a sodium hydroxide-aided reaction on the overall penetration characteristics. Data suggest that the sodium penetration of concrete surfaces is limited. Penetration of basalt concrete in the presence of sodium hydroxide is shown to be less severe than attack by the metallic sodium alone. Presence of sodium hydroxide changes the characteristics of sodium penetration of limestone concrete, but no major differences in bulk penetration were observed as compared to penetration by metallic sodium.

  17. Petrography study of two siliceous limestones submitted to alkali-silica reaction

    SciTech Connect (OSTI)

    Monnin, Y. . E-mail: monnin@ensm-douai.fr; Degrugilliers, P.; Bulteel, D.; Garcia-Diaz, E.

    2006-08-15

    This study presents the contribution of petrography to the comprehension of the alkali-silica reaction mechanism applied to two siliceous limestones. A petrography study was made on the two aggregates before reaction to define their relative proportions and types of reactive silica and to observe their distribution in the microstructure. Then a model reactor, constituted by the reactive siliceous limestone aggregate, portlandite and NaOH, was used to measure the swelling due to reaction of the silica with alkalis and the free expansion of the aggregates. The volume evolution between both aggregates was very different and could be explained by the preliminary petrographic study. It appears that the swelling of the aggregates is conditioned by the microstructure of the carbonated matrix, the quantity and the distribution of the reactive silica.

  18. Mechanisms of poron Adsorption on Metal Oxides. C.V. TONER, IV and D.l. SPARKS, Univ. of Delaware.

    E-Print Network [OSTI]

    Sparks, Donald L.

    Mechanisms of poron Adsorption on Metal Oxides. C.V. TONER, IV· and D.l. SPARKS, Univ. of Delaware in the soil solution. Yet the reaction mechanism has not been firmly established. Pressure-jump relaxation kjnetic experiments were conducted to determine the mechanism ,of borate adsorption on alUlllina (1 Al~03

  19. Measurement of the (B)over-bar->Dl(nu)over-bar partial width and form factor parameters

    E-Print Network [OSTI]

    Ammar, Raymond G.; Baringer, Philip S.; Bean, Alice; Besson, David Zeke; Coppage, Don; Darling, C.; Davis, Robin E. P.; Hancock, N.; Kotov, S.; Kravchenko, I.; Kwak, Nowhan

    1997-09-01

    We have studied the decay (B) over bar --> Dl, where I = e or mu. From a fit to the differential decay rate d Gamma/dw we measure the rate normalization F-D (1)\\V-cb\\ and form factor slope (2)(D), and, using measured...

  20. Hypothetical Distance Learning Program Costs Model A framework for thinking about the comprehensive costs of hosting a DL program

    E-Print Network [OSTI]

    Snider, Barry B.

    Hypothetical Distance Learning Program Costs Model A framework for thinking about the comprehensive costs of hosting a DL program Start-Up Ongoing Explanation 100,000$ 100,000$ FTE needed to develop any or repurpose old courses for the online context. Infrastructure Costs tbd tbd Cost of adding or improving

  1. Characterisation of hydraulic fractures in limestones using X-ray microtomography

    E-Print Network [OSTI]

    Renard, Francois; Desrues, Jacques; Plougonven, Erwan; Ougier-Simonin, Audrey

    2006-01-01

    Hydraulic tension fractures were produced in porous limestones using a specially designed hydraulic cell. The 3D geometry of the samples was imaged using X-ray computed microtomography before and after fracturation. Using these data, it was possible to estimate the permeability tensor of the core samples, extract the path of the rupture and compare it to the heterogeneities initially present in the rock.

  2. Nutrients and Nutrient Nutrient cycles

    E-Print Network [OSTI]

    Mitchell, Randall J.

    : 38,000 Fossil Fuels:Fossil Fuels: 25,000,00025,000,000 Limestone,Limestone, Dolomite:Dolomite: 18 to atmosphere currently exceed outputs because of - Fossil fuel burning - Vegetation burning - Reduced primary

  3. Hydrocarbon Seeps of the Mesozoic Great Valley Group Forearc Strata and Franciscan Complex, Northern and Central California, U.S.A.

    E-Print Network [OSTI]

    Keenan, Kristin Euphrat

    2010-01-01

    Sediments and Their Diagenesis. Elsevier ScientificDolomitization and Limestone Diagenesis. Society of Economictextures, porosity, diagenesis. The American Association of

  4. Establishing the Relationship between Fracture-Related Dolomite and Primary Rock Fabric on the Distribution of Reservoirs in the Michigan Basin

    SciTech Connect (OSTI)

    G. Michael Grammer

    2006-09-30

    This topical report covers the year 2 of the subject 3-year grant, evaluating the relationship between fracture-related dolomite and dolomite constrained by primary rock fabric in the 3 most prolific reservoir intervals in the Michigan Basin (Ordovician Trenton-Black River Formations; Silurian Niagara Group; and the Devonian Dundee Formation). The characterization of select dolomite reservoirs has been the major focus of our efforts in Phase II/Year 2. Fields have been prioritized based upon the availability of rock data for interpretation of depositional environments, fracture density and distribution as well as thin section, geochemical, and petrophysical analyses. Structural mapping and log analysis in the Dundee (Devonian) and Trenton/Black River (Ordovician) suggest a close spatial relationship among gross dolomite distribution and regional-scale, wrench fault related NW-SE and NE-SW structural trends. A high temperature origin for much of the dolomite in the 3 studied intervals (based upon initial fluid inclusion homogenization temperatures and stable isotopic analyses,) coupled with persistent association of this dolomite in reservoirs coincident with wrench fault-related features, is strong evidence for these reservoirs being influenced by hydrothermal dolomitization. For the Niagaran (Silurian), a comprehensive high resolution sequence stratigraphic framework has been developed for a pinnacle reef in the northern reef trend where we had 100% core coverage throughout the reef section. Major findings to date are that facies types, when analyzed at a detailed level, have direct links to reservoir porosity and permeability in these dolomites. This pattern is consistent with our original hypothesis of primary facies control on dolomitization and resulting reservoir quality at some level. The identification of distinct and predictable vertical stacking patterns within a hierarchical sequence and cycle framework provides a high degree of confidence at this point that results will be exportable throughout the basin. Ten petrophysically significant facies have been described in the northern reef trend, providing significantly more resolution than the standard 4-6 that are used most often in the basin (e.g. Gill, 1977). Initial petrophysical characterization (sonic velocity analysis under confining pressures) shows a clear pattern that is dependent upon facies and resulting pore architecture. Primary facies is a key factor in the ultimate diagenetic modification of the rock and the resulting pore architecture. Facies with good porosity and permeability clearly show relatively slow velocity values as would be expected, and low porosity and permeability samples exhibit fast sonic velocity values, again as expected. What is significant is that some facies that have high porosity values, either measured directly or from wireline logs, also have very fast sonic velocity values. This is due to these facies having a pore architecture characterized by more localized pores (vugs, molds or fractures) that are not in communication.

  5. ROLE OF TRIVALENT Mn IN OXIDATION OF ORGANIC MATTER Christopher J. Matocha and D.L. Sparks

    E-Print Network [OSTI]

    Sparks, Donald L.

    organic matter^ M AT E R I A L S A N D M E T H O D S Reactivity studies of solid Mn(lll,IV) (hydr) oxide of available Mn(lli). R E S U L T S No correlation existed between the initial reductive dissolution ratesROLE OF TRIVALENT Mn IN OXIDATION OF ORGANIC MATTER Christopher J. Matocha and D.L. Sparks Dept

  6. The Chachil Limestone (Pliensbachianeearliest Toarcian) Neuqun Basin, Argentina: UePb age calibration and its significance on the Early Jurassic

    E-Print Network [OSTI]

    Galland, Olivier

    The Chachil Limestone (Pliensbachianeearliest Toarcian) Neuquén Basin, Argentina: UePb age Geológico Minero Argentino and CONICET, Av. Julio A. Roca 651, 1322 Buenos Aires, Argentina b Physics Geológicas, Universidad Nacional de la Plata, Calle 1 - # 644, 1900 La Plata, Argentina e Volcanic Basin

  7. Enhancing High Volume Fly Ash Concretes Using Fine Limestone Powder by Jussara Tanesi, Dale Bentz, and Ahmad Ardani

    E-Print Network [OSTI]

    Bentz, Dale P.

    Enhancing High Volume Fly Ash Concretes Using Fine Limestone Powder by Jussara Tanesi, Dale Bentz of replacing 50 % or more of the portland cement in a conventional concrete with fly ash, producing a so-called high volume fly ash (HVFA) concrete. While these mixtures typically perform admirably in the long term

  8. R tuart Haszeldine, University of Edinburgh, Edinburgh, United Kingdom Oil Charge Preserves Deep-Burial Porosity in Sandstones and Limestones

    E-Print Network [OSTI]

    Haszeldine, Stuart

    -Burial Porosity in Sandstones and Limestones Debate since 1920, has equivocated over the effects of oil charge on reservoir quality. Regional information and local case-studies from the North Sea, shows sandstones from. As with sandstones, two types of reservoirs exist, those with regional porosity decline and those with raid porosity

  9. Laboratory evaluation of limestone and lime neutralization of acidic uranium mill tailings solution. Progress report

    SciTech Connect (OSTI)

    Opitz, B.E.; Dodson, M.E.; Serne, R.J.

    1984-02-01

    Experiments were conducted to evaluate a two-step neutralization scheme for treatment of acidic uranium mill tailings solutions. Tailings solutions from the Lucky Mc Mill and Exxon Highland Mill, both in Wyoming, were neutralized with limestone, CaCO/sub 3/, to an intermediate pH of 4.0 or 5.0, followed by lime, Ca(OH)/sub 2/, neutralization to pH 7.3. The combination limestone/lime treatment methods, CaCO/sub 3/ neutralization to pH 4 followed by neutralization with Ca(OH)/sub 2/ to pH 7.3 resulted in the highest quality effluent solution with respect to EPA's water quality guidelines. The combination method is the most cost-effective treatment procedure tested in our studies. Neutralization experiments to evaluate the optimum solution pH for contaminant removal were performed on the same two tailings solutions using only lime Ca(OH)/sub 2/ as the neutralizing agent. The data indicate solution neutralization above pH 7.3 does not significantly increase removal of pH dependent contaminants from solution. Column leaching experiments were performed on the neutralized sludge material (the precipitated solid material which forms as the acidic tailings solutions are neutralized to pH 4 or above). The sludges were contacted with laboratory prepared synthetic ground water until several effluent pore volumes were collected. Effluent solutions were analyzed for macro ions, trace metals and radionuclides in an effort to evaluate the long term effectiveness of attenuating contaminants in sludges formed during solution neutralization. Neutralized sludge leaching experiments indicate that Ca, Na, Mg, Se, Cl, and SO/sub 4/ are the only constituents which show solution concentrations significantly higher than the synthetic ground water in the early pore volumes of long-term leaching studies.

  10. Assessment of the applicability of an anoxic limestone drain for a surface mine in east central Tennessee

    SciTech Connect (OSTI)

    Schmidt, T.W. [Skelly and Loy, Inc., Harrisburg, PA (United States); Hedin, R.S. [Hedin Environmental, Pittsburgh, PA (United States); Lorello, P.R. [Kennecott Energy Company, Gillette, WY (United States)

    1996-12-31

    Anoxic limestone drains (ALDs) are a cost-effective technique for adding alkalinity to acid mine drainage. However, the applicability of an ALD is limited to a rather narrow range of mine drainage chemical conditions due to concerns about the armoring of limestone with ferric hydroxide, the plugging of flow paths with aluminum hydroxide, and the limited solubility of calcite. While the armoring and plugging potentials can be assessed with careful water quality analyses, the solubility of limestone in a particular mine water cannot, at this time, be predicted from mine water chemistry. Thus, the danger always exists that the ALD will generate insufficient alkalinity to completely neutralize the acidic water, resulting in either insufficiently treated discharge or a need for additional treatment. In order to remove uncertainty from the design of a 4,000-ton ALD, we conducted limestone incubation tests and pilot-scale ALD tests. Incubation tests were done using a modified version of the {open_quotes}cubitainer{close_quotes} procedure developed by the United States Bureau of Mines. The pilot ALD consisted of 65 tons of limestone. Hydrologic loading experiments were conducted that provided an assessment of the ALD performance under design flow conditions and flow rates four times higher than the design flow. Under design flow conditions, the pilot ALD discharged water with alkalinity concentrations similar to that predicted by the cubitainer tests (360 parts per million). With increased flow, concentrations of alkalinity in the pilot ALD effluent decreased, with the water becoming net acidic at a flow rate of 15 gallons per minute. The results of the pilot ALD were used to size a full-scale ALD and model ALD performance under a variety of flow conditions.

  11. Compositional and in Vitro Evaluation of Nonwoven Type I Collagen/Poly-dl-lactic Acid Scaffolds for Bone Regeneration

    E-Print Network [OSTI]

    Qiao, Xiangchen; Yang, Xuebin; Tronci, Giuseppe; Wood, David J

    2015-01-01

    Poly-dl-lactic acid (PDLLA) was blended with type I collagen to attempt to overcome the instantaneous gelation of electrospun collagen scaffolds in biological environments. Scaffolds based on blends of type I collagen and PDLLA were investigated for material stability in cell culture conditions (37 {\\deg}C; 5% CO2) in which post-electrospinning glutaraldehyde crosslinking was also applied. The resulting wet-stable webs were cultured with bone marrow stromal cells (HBMSC) for five weeks. Scanning electron microscopy (SEM), confocal laser scanning microscopy (CLSM), Fourier transform infra-red spectroscopy (FTIR) and biochemical assays were used to characterise the scaffolds and the consequent cell-scaffold constructs. To investigate any electrospinning-induced denaturation of collagen, identical PDLLA/collagen and PDLLA/gelatine blends were electrospun and their potential to promote osteogenic differentiation investigated. PDLLA/collagen blends with w/w ratios of 40/60, 60/40 and 80/20 resulted in satisfactory...

  12. Diagenetic history and the evolution of porosity in the Cotton Valley Limestone, Teague Townsite Field, Freestone County, Texas 

    E-Print Network [OSTI]

    Steffensen, Carl Kristian

    1982-01-01

    of Porosity in the Cotton Valley Limestone, Teague Townsite Field, Freestone County, Texas (December, 1982) Carl Kristian Steffensen, B. S. , University of Illinois Chairman of Advisory Committee: Dr. Wayne M. Ahr The Cotton Valey Lime was deposited... during a regressive phase of the Late Jurassic, in a shallow sea with an exten- sive platform. Mild salt tectonism has modified depositional and diagenetic environments through time. The Cotton Valley Lime is composed of thick, massive, oolitic...

  13. Paleoecology and depositional environment of Fort Hays Limestone Member, Niobrara Chalk (Upper Cretaceous), west-central Kansas

    E-Print Network [OSTI]

    Frey, R. W.

    1972-05-12

    OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS ARTICLE 58 (CRETACEOUS 3) PALEOECOLOGY AND DEPOSITIONAL ENVIRONMENT OF FORT HAYS LIMESTONE MEMBER, NIOBRARA CHALK (UPPER CRETACEOUS), WEST-CENTRAL KANSAS ROBERT W. FREY Department of Geology, University of Georgia..., Athens The University of Kansas Paleontological Institute THE UNIVERSITY OF KANSAS PUBLICATIONS MAY 12, 1972 THE UNIVERSITY OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS Article 58 (Cretaceous 3), 72 Pages, 14 Figures, 15 Plates, 6 Tables PALEOECOLOGY...

  14. WHOLE-ROCK 87Sr/86Sr COMPOSITION AND APPARENT STRONTIUM ISOTOPIC AGE OF LIMESTONES FROM SITE 1118, WOODLARK RIFT BASIN, SOUTHWEST PACIFIC (OCEAN DRILLING PROGRAM LEG 180) 

    E-Print Network [OSTI]

    Allan, Tony; Robertson, Alastair H F; Sharp, Timothy R; Trotter, Julie

    2001-01-01

    Limestone from Unit VI (857.1–859.15 meters below seafloor) collected at Site 1118 contains a planktonic foraminiferal fauna indicating a latest Miocene to early Pliocene age. Globorotalia tumida is recorded in Sample ...

  15. DEVELOPMENT OF HIGH EFFICIENCY FLEXIBLE CdTe SOLAR CELLS A.Romeo, M. Arnold, D.L. Btzner, H. Zogg and A.N. Tiwari*

    E-Print Network [OSTI]

    Romeo, Alessandro

    applications that require a very high specific power (ratio of output electrical power to the solar module specific power is an important issue for space solar cells: if satellites are lighter they are easierDEVELOPMENT OF HIGH EFFICIENCY FLEXIBLE CdTe SOLAR CELLS A.Romeo, M. Arnold, D.L. Bätzner, H. Zogg

  16. Kinetics of Adsorption of Selenate and Selonite at the Goethite/Water InterfAce. p.e. ZHANG* and D.L. SPARKS.

    E-Print Network [OSTI]

    Sparks, Donald L.

    Kinetics of Adsorption of Selenate and Selonite at the Goethite/Water InterfAce. p.e. ZHANG* and D.L. SPARKS. Univ. of Delaware. Mechanisms and kinetics of SeO, and Se~ at the goethite/water interface were

  17. Interaction of Phenol and Aniline with Montmorillonite and llliti. D.L. SPARKS and P.C. ZHANG*. Univ. of Delaware.

    E-Print Network [OSTI]

    Sparks, Donald L.

    by the presence of organic matter on the surfaces of colloids and/or degradation of phenol. The latterInteraction of Phenol and Aniline with Montmorillonite and llliti. D.L. SPARKS and P.C. ZHANG*. Univ. of Delaware. The interaction of phenol and aniline with montmorillonite ' and illite at low

  18. Regional analysis of rhythmic bedding in the Fort Hays limestone member, Niobrara Formation (Upper Cretaceous), US western interior

    SciTech Connect (OSTI)

    Laferriere, A.P.

    1987-01-01

    Results of a regional stratigraphic investigation of the rhythmically bedded Fort Hays limestone member of Kansas, Colorado, and New Mexico indicate at least two levels of cyclicity. Regional development of these cycles strongly supports the hypothesis that they are climatic in origin. Departures from simple cyclical patterns resulted from sedimentary effects of Late Cretaceous orogenic activity, erosional events associated with eustatic sea level changes, diagenetic modification, and possibly from interference between orbital parameters having different periodicities. The vulnerability of Milankovitch-type cyclicity to overprinting by tectono-sedimentologic effects makes units such as the Fort Hays useful as indicators of subtle tectonic activity. Regional thickness changes in groups of shale-limestone couplets were identified, correlated, and mapped in the subsurface using geophysical well log information in order to locate subtle structural elements that influenced Fort Hays sedimentation. In the Denver-Julesburg Basin of Colorado and western Kansas, thinning of the section between Fort Hays marker horizons occurs dominantly along northeastwardly trending belts that resulted apparently from Late Cretaceous reactivation of the Transcontinental Arch. Isotopic and petrographic analyses were conducted on pelagic (carbonate matrix) and benthic (inoceramid bivalve) constituents of selected shale/limestone couplets. These data suggest that there was little difference in temperature or salinity between times of terrigenous detrital input and times of nearly pure carbonate deposition. Isotopic information from matrix samples suggests a westward decrease in salinity of surface water in the Western Interior Sea. Isotopic data from largely unaltered inoceramid bivalves indicate bottom-water conditions of near-normal marine salinity.

  19. The effects of acid contact time and rock surfaces on acid fracture conductivity 

    E-Print Network [OSTI]

    Melendez Castillo, Maria Georgina

    2009-06-02

    in rock strength at the contact points for dolomite yielded lower conductivity after closure. The effects of hardness variation on conductivity are higher in dolomite than in limestone and chalk. It is apparent that longer contact times do not always...

  20. Chemical alteration of limestone and marble samples exposed to acid rain and weathering in the eastern United States, 1984--1988

    SciTech Connect (OSTI)

    Reimann, K.J.

    1991-06-01

    In a long-term program that began in 1984, limestone and marble briquettes have been exposed to both anthropogenic acid deposition and natural weathering of four field sites in the eastern United States. Similar tests began at an Ohio site in 1986. Effects of exposure on the briquettes and other materials at the sites are evaluated periodically by several federal agencies cooperating in the National Acid Precipitation Assessment Program (NAPAP). A primary contribution of Argonne National Laboratory to the NAPAP has been chemical analysis to determine changes in the samples caused by exposure to the environment. Wet chemical analysis was used to detect sulfates, nitrates, fluorides, chlorides, and a series of metal cations in sequential layers of stone removed from the briquettes after field exposure. Results from the first four years of the program indicate that rinsing by rain keeps skyward-facing stone relatively clean of reaction products, especially sulfate, the most abundant product. On groundward-facing samples, sulfate concentrations increased linearly with exposure time, and values were proportional to atmospheric SO{sub 2} concentrations at the site. Sulfate concentrations in groundward samples were much higher in limestone than in marble, because of the greater porosity of the limestone. A steep sulfate gradient was seen in both sample types from the surface to the interior. On skyward surfaces, material losses per rain event due to complete dissolution of accumulated sulfates were approximately equal to concentrations measured in runoff. Preexposed limestone samples had sulfate accumulations deep in their interiors, while fresh, unexposed limestone did not. No substantial changes in cation accumulations wee detected in either limestone or marble.

  1. Phase I (Year 1) Summary of Research--Establishing the Relationship between Fracture-Related Dolomite and Primary Rock Fabric on the Distribution of Reservoirs in the Michigan Basin

    SciTech Connect (OSTI)

    G. Michael Grammer

    2005-11-09

    This topical report covers the first 12 months of the subject 3-year grant, evaluating the relationship between fracture-related dolomite and dolomite constrained by primary rock fabric in the 3 most prolific reservoir intervals in the Michigan Basin (Ordovician Trenton-Black River Formations; Silurian Niagara Group; and the Devonian Dundee Formation). Phase I tasks, including Developing a Reservoir Catalog for selected dolomite reservoirs in the Michigan Basin, Characterization of Dolomite Reservoirs in Representative Fields and Technology Transfer have all been initiated and progress is consistent with our original scheduling. The development of a reservoir catalog for the 3 subject formations in the Michigan Basin has been a primary focus of our efforts during Phase I. As part of this effort, we currently have scanned some 13,000 wireline logs, and compiled in excess of 940 key references and 275 reprints that cover reservoir aspects of the 3 intervals in the Michigan Basin. A summary evaluation of the data in these publications is currently ongoing, with the Silurian Niagara Group being handled as a first priority. In addition, full production and reservoir parameter data bases obtained from available data sources have been developed for the 3 intervals in Excel and Microsoft Access data bases. We currently have an excess of 25 million cells of data for wells in the Basin. All Task 2 objectives are on time and on target for Phase I per our original proposal. Our mapping efforts to date, which have focused in large part on the Devonian Dundee Formation, have important implications for both new exploration plays and improved enhanced recovery methods in the Dundee ''play'' in Michigan--i.e. the interpreted fracture-related dolomitization control on the distribution of hydrocarbon reservoirs. In an exploration context, high-resolution structure mapping using quality-controlled well data should provide leads to convergence zones of fault/fracture trends that are not necessarily related to structural elevation. Further work in Phase II will be focused on delineating the relative contribution to fracture-only dolomitization to that which occurs in conjunction with primary facies and/or sequence stratigraphic framework.

  2. EPA's (Environmental Protection Agency's) program for evaluation and demonstration of low-cost retrofit LIMB (Limestone Injection Multistage Burner) technology

    SciTech Connect (OSTI)

    Stern, R.D.

    1987-09-01

    This paper discusses program objectives, approaches, current status and results, future activities, and schedules for EPA's program for research and development, field evaluation, and demonstration of Limestone Injection Multistage Burner (LIMB) technology. Primary emphasis is on: (1) the full-scale demonstration being conducted on Ohio Edison's 104-MW wall-fired Edgewater Station Unit 4; (2) evaluation on a 50 million Btu/hr tangentially fired prototype nearing completion; (3) on-going field evaluation on Richmond Power and Light's 61-MW tangentially fired Whitewater Valley Generating Station Unit 2. The new program for demonstration on Virginia Electric Power's 180-MW tangentially fired Yorktown II Plant is also described. The LIMB process is based on injecting dry sorbents into the boiler for direct capture of SO/sub 2/ from the combustion gases. LIMB combines sorbent injection for SO/sub 2/ control with the use of low-NOx burners, in which staged combustion is utilized for NOx control.

  3. Numerical modeling of carbon dioxide sequestration on the rate of pressure solution creep in limestone: Preliminary results

    E-Print Network [OSTI]

    Renard, Francois; Hellmann, Roland; Collombet, Marielle; Guen, Yvi Le

    2008-01-01

    When carbon dioxide (CO2) is injected into an aquifer or a depleted geological reservoir, its dissolution into solution results in acidification of the pore waters. As a consequence, the pore waters become more reactive, which leads to enhanced dissolution-precipitation processes and a modification of the mechanical and hydrological properties of the rock. This effect is especially important for limestones given that the solubility and reactivity of carbonates is strongly dependent on pH and the partial pressure of CO2. The main mechanism that couples dissolution, precipitation and rock matrix deformation is commonly referred to as intergranular pressure solution creep (IPS) or pervasive pressure solution creep (PSC). This process involves dissolution at intergranular grain contacts subject to elevated stress, diffusion of dissolved material in an intergranular fluid, and precipitation in pore spaces subject to lower stress. This leads to an overall and pervasive reduction in porosity due to both grain indent...

  4. Moduli dispersion and attenuation in limestones in the laboratory L. Adam and M. Batzle, Center for Rock Abuse, Colorado School of Mines

    E-Print Network [OSTI]

    for reservoir characterization. We measure limestone samples in the laboratory to analyze attenuation by injecting brine into the reservoir (Soroka et al., 2005). The carbonate samples used in these experiments is common practice in reservoir rock physics. With knowl- edge of these properties, enhanced oil recovery

  5. Pilot-scale limestone emission control (LEC) process: A development project. Volume 1: Main report and appendices A, B, C, and D. Final report

    SciTech Connect (OSTI)

    Not Available

    1994-03-01

    ETS, Inc., a pollution consulting firm with headquarters in Roanoke, Virginia, has developed a dry, limestone-based flue gas desulfurization (FGD) system. This SO{sub 2} removal system, called Limestone Emission Control (LEC), can be designed for installation on either new or existing coal-fired boilers. In the LEC process, the SO{sub 2} in the flue gas reacts with wetted granular limestone that is contained in a moving bed. A surface layer of principally calcium sulfate (CaSO{sub 4}) is formed on the limestone. Periodic removal of this surface layer by mechanical agitation allows high utilization of the limestone granules. The primary goal of the current study is the demonstration of the techno/economic capability of the LEC system as a post-combustion FGD process capable of use in both existing and future coal-fired boiler facilities burning high-sulfur coal. A nominal 5,000 acfm LEC pilot plant has been designed, fabricated and installed on the slipstream of a 70,000 pph stoker boiler providing steam to Ohio University`s Athens, Ohio campus. The pilot plant was normally operated on the slipstream of the Ohio Univ. boiler plant flue gas, but also had the capability of operating at higher inlet SO{sub 2} concentrations (typically equivalent to 3-1/2% sulfur coal) than those normally available from the flue gas slipstream. This was accomplished by injecting SO{sub 2} gas into the slipstream inlet. The pilot plant was instrumented to provide around-the-clock operation and was fully outfitted with temperature, SO{sub 2}, gas flow and pressure drop monitors.

  6. The use of wet limestone systems for combined removal of SO sub 2 and NO sub x from flue gas

    SciTech Connect (OSTI)

    Lee, G.C. (Bechtel Corp., San Francisco, CA (USA)); Shen, D.X.; Littlejohn, D.; Chang, S.G. (Lawrence Berkeley Lab., CA (USA))

    1990-03-01

    A new approach by utilizing yellow phosphorus in conventional wet limestone systems for high efficiency control of SO{sub 2} and NO{sub x} emissions from power plants has been developed. The addition of yellow phosphorus in the system induces the production of O{sub 3} which subsequently oxidizes NO to NO{sub 2}. The resulting NO{sub 2} dissolves readily and can be reduced to form ammonium ions by dissolved SO{sub 2} under appropriate conditions. Yellow phosphorus is oxidized to yield P{sub 2}O{sub 5} which picks up water to form H{sub 3}PO{sub 4} mists and can be collected as a valuable product. Proof of concept experiments have been performed using a 20 acfm bench-scale system. The results show that better than 90% of SO{sub 2} and NO in simulated flue gas can be removed. Stoichiometric ratios (P/NO) ranging between 0.6 and 1.5 were obtained. This ratio depends on operating conditions as well as the process configuration. A conceptual process flow diagram has been proposed. A preliminary cost evaluation of this approach appears to indicate great economic potential. 22 refs., 8 figs., 1 tab.

  7. Permitting and solid waste management issues for the Bailly Station wet limestone Advanced Flue Gas Desulfurization (AFGD) system

    SciTech Connect (OSTI)

    Bolinsky, F.T. (Pure Air, Allentown, PA (United States)); Ross, J. (Northern Indiana Public Service Co., Hammond, IN (United States)); Dennis, D.S. (United Engineers and Constructors, Inc., Denver, CO (United States). Stearns-Roger Div.); Huston, J.S. (Environmental Alternatives, Inc., Warren NJ (USA))

    1991-01-01

    Pure Air (a general partnership between Air Products and Chemicals, Inc., and Mitsubishi Heavy Industries America, Inc.). is constructing a wet limestone co-current advanced flue gas desulfurization (AFGD) system that has technological and commercial advantages over conventional FGD systems in the United States. The AFGD system is being installed at the Northern Indiana Public Service Company's Bailly Generating Station near Gary, Indiana. The AFGD system is scheduled to be operational by the Summer, 1992. The AFGD system will remove at least 90 percent of the sulfur dioxide (SO{sub 2}) in the flue gas from Boilers 7 and 8 at the Station while burning 3.2 percent sulfur coal. Also as part of testing the AFGD system, 95 percent removal of SO{sub 2} will be demonstrated on coals containing up to 4.5 percent sulfur. At the same time that SO{sub 2} is removed from the flue gas, a gypsum by-product will be produced which will be used for wallboard manufacturing. Since the AFGD system is a pollution control device, one would expect its installation to be received favorably by the public and regulatory agencies. Although the project was well received by regulatory agencies, on public group (Save the Dunes Council) was initially concerned since the project is located adjacent to the Indiana Dunes National Lakeshore. The purpose of this paper is to describe the project team's experiences in obtaining permits/approvals from regulatory agencies and in dealing with the public. 1 ref., 1 fig., 2 tabs.

  8. Reservoir development in bryozoan bafflestone facies of the Ullin (Warsaw) Limestone (Middle Mississippian) in the Illinois basin

    SciTech Connect (OSTI)

    Lasemi, Z.; Treworgy, J.D.; Norby, R.D.; Grube, J.P. (Illinois State Geological Survey, Champaign, IL (United States))

    1994-08-01

    Recent drilling in Enfield South and Johnsonville fields in southern Illinois has encountered prolific petroleum-producing zones within the Ullin (Warsaw) Limestone. This and large cumulative production from a number of older wells in the Illinois basin indicate that the Ullin has greater reservoir potential than previously recognized. The Ullin reservoir facies is mainly a fenestrate bryozoan-dominated bafflestone developed on the flanks of Waulsortian-type mud mounds or on transported skeletal sand buildups. Subsurface geology and petrography reveal such porous bryozoan bafflestone facies (some with shows of oil) at various horizons within the Ullin. However, in part because of water problems in some areas, only the upper part of the Ullin has been tested thus far and, as a result, significant reservoirs in the deeper part of the unit may have been missed. Preliminary data indicate several facies in the Ullin that vary in their aerial distribution in the basin. These facies include (1) skeletal sand-wave facies and/or bryozoan bafflestone in the upper Ullin, (2) bryozoan bafflestone with a dense Waulsortian mud mound core, (3) thick bryozoan bafflestone over a skeletal grainstone facies, and (4) thick mud mound-dominated facies with thin porous flanking bafflestone/grainstone facies. Areas with facies type 1 and 2 have the highest potential for commercial reservoir development. Facies type 3, although quite porous, is commonly wet, and the porous facies type 4 may be localized and not extensive enough to be commercial. Petrographic examination shows excellent preservation of primary intra- and interparticle porosities within the bryozoan bafflestone facies. The generally stable original mineralogy prevented extensive dissolution-reprecipitation and occlusion of porosity. Further, the stable mineralogy and minor early marine cementation prevented later compaction and burial diagenesis.

  9. Corona driven air propulsion for cooling of electronics F. Yang, N.E. Jewell-Larsen, D.L. Brown, K. Pendergrass, D.A. Parker, I.A. Krichtafovitch*, A.V. Mamishev

    E-Print Network [OSTI]

    Mamishev, Alexander

    Corona driven air propulsion for cooling of electronics F. Yang, N.E. Jewell-Larsen, D.L. Brown, K of Washington, Seattle, WA 98105, USA *Chief Scientific Officer, Kronos Air Technologies, Redmond, WA 98052, USA Abstract: The possibility of building a high voltage electrostatic air pump for cooling of microelectronics

  10. Dissolution of a Lunar Glass The Effect of and Organic Acids at 298K MJ. EICK*, D.L SPARKS, D.C. GOLDEN, and D.W. MING, Vniv. of

    E-Print Network [OSTI]

    Sparks, Donald L.

    Dissolution of a Lunar Glass The Effect of and Organic Acids at 298K MJ. EICK*, D.L SPARKS, D acid concentrations of 2 and 20 mM. The organic acids were buffered at pH 7 to separate the effect in the presence of the organic acids with citric acid having a greater effect on the rate of dissolution than

  11. spe438-20 page 1 Garrison, N.J., Busby, C.J., Gans, P.B., Putirka, K., and Wagner, D.L., 2008, A mantle plume beneath California? The mid-Miocene Lovejoy flood basalt, northern

    E-Print Network [OSTI]

    Busby, Cathy

    spe438-20 page 1 1 Garrison, N.J., Busby, C.J., Gans, P.B., Putirka, K., and Wagner, D.L., 2008-Miocene Lovejoy flood basalt, northern California Noah J. Garrison Cathy J. Busby Phillip B. Gans Department basalt. #12;2 Garrison et al. spe438-20 page 2 INTRODUCTION Mid-Miocene volcanism in the northern Sierra

  12. Geology. Most of the Guadalupe River flows through either Glen Rose Limestone, or Fluviatile Terrace Deposits. Combined geologic categories are designated where two geologic units exist in cross section and the channel flows along a boundary between the t

    E-Print Network [OSTI]

    Curran, Joanna C.

    Results Geology. Most of the Guadalupe River flows through either Glen Rose Limestone, or Fluviatile Terrace Deposits. Combined geologic categories are designated where two geologic units exist length. The highest percentage of bedrock coverage per geologic type appears in combined categories (Fig

  13. Regional scale effects of base cation fertilization on Norway spruce and European beech stands situated on acid brown soils: soil and foliar chemistry

    E-Print Network [OSTI]

    Misson, Laurent

    2001-01-01

    M.R. , Nys C. , Effects of lime-induced differences in siteF. , Impact of dolomite lime on the ground vegetation and onof limestone and of limes- tone plus NPK fertilization on

  14. GARGZDAI "KRANTAS" SECONDARY SCHOOL

    E-Print Network [OSTI]

    Borissova, Daniela

    (limestone, dolomite, whiting, marble, gypsum, anhydrite, rock-salt) and water circulates. The areas beneficent. Tectonic movements. #12;FORMING CONDITIONS In Lithuania the intensive sinkhole zone takes the position

  15. Cathodoluminescence petrography and isotope geochemistry of KT impact ejecta deposited 360 km from the Chicxulub crater,

    E-Print Network [OSTI]

    Fouke, Bruce W.

    ** and ALFRED G. FISCHER *Department of Geology, University of Illinois, 245 Natural History Building, 1301 W Barton Creek Formation dolomitized marine limestone overlain by 16 m of dolomitized Albion Formation impact ejecta. The Albion Formation consists of a lower fine- grained »1-m-thick spheroid bed

  16. Stratigraphic and diagenetic controls on the occurrence of porosity in the Mississippian Mission Canyon Formation in the Billings Nose Area, North Dakota 

    E-Print Network [OSTI]

    Beaber, Daniel Edward

    1989-01-01

    , intercrystalline and dissolution, were identified. Intercrystalline porosity formed as the result of partial dolomitization of the dominantly lime mud matrix. Dissolution preferentially removed the limestone grains. Depositional facies controlled... the distribution of grains and, therefore, the distribution of dissolution to some extent. Stratigraphic location controlled the degree of dolomitization. The stratigraphically higher A and B zones were in closer proximity to the dolomitizing fluids from...

  17. Limestone calcination during pulsating combustion

    SciTech Connect (OSTI)

    James, R.E. III (Oak Ridge Associated Universities, Inc., TN (United States)); Richards, G.A. (USDOE Morgantown Energy Technology Center, WV (United States))

    1992-01-01

    METC is currently conducting research on enhanced calcination during pulsating combustion as part of the Heat Engines program. It has been shown elsewhere that rapid, high temperature calcination will result in a calcined product with relatively large surface area, as desired for sulfur capture. It is proposed that such a process may occur during pulsating combustion where the oscillating pressure/velocity field around a particle increases the heat/mass transfer to and from the particle. To test this hypothesis, calcination tests in progress at METC use a novel form of pulse combustion called thermal'' pulse combustion, operating at 60000 BTUH, 100 Hz, and 5--15 psig peak-to- peak amplitude. Two configurations are being studied during the testing: one configuration is injection of sorbent into a refractory lined drop tube being heated by the pulse combustor, and the other configuration is injection of the sorbent into the pulse combustor through its centerbody and along the tailpipe at various positions. To understand the observed behavior, a characterization study of the pulse combustor is being conducted. Different flow rates, equivalence ratios, and injection positions are being tested.

  18. CM200DL-Final.doc

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L OBransenBusinessInitialRadiological Surveys Core Status: new

  19. Microsoft Word - mitchell-dl.doc

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on77 PAGE OFDetection ofOctober10 Years of AERI9 (Released

  20. TEAM0.5DL.doc

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With LivermoreSustainable Landmimic keySystemssystemsoTE ConnectivityI

  1. Chitinozoans in the subsurface Lower Paleozoic of West Texas

    E-Print Network [OSTI]

    Kauffman, A. E.

    1971-10-22

    THE UNIVERSITY OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS October 22, 1971 Paper 54 CHITINOZOANS IN THE SUBSURFACE LOWER PALEOZOIC OF WEST TEXAS A. E. KAUFFMAN Humble Oil & Refining Company, Midland, Texas ABSTRACT Studies based on both comprehensive... are found throughout the West Texas area. As generally accepted by operational petroleum geologists, the Simpson Group comprises the Joins Formation (limestone and dolomite); Oil Creek Formation (sandstone, shale, and limestone); McLish Formation (sand...

  2. Generalized thickness and configuration of the top of the intermediate aquifer, West-Central Florida

    SciTech Connect (OSTI)

    Corral, M.A. Jr.; Wolansky, R.M.

    1984-01-01

    The water-bearing units of the intermediate aquifer consist of discontinuous sand, gravel, shell, and limestone and dolomite beds in the Tamiami Formation of late Miocene age and the Hawthorn Formation of middle Miocene age. Within parts of Polk, Manatee, Hardee, De Soto, Sarasota, and Charlotte Counties, sand and clay beds within the Tampa Limestone that are hydraulically connected to the Hawthorn Formation are also included in the intermediate aquifer. 15 refs.

  3. Integrated Plant for the Municipal Solid Waste of Madrid

    E-Print Network [OSTI]

    Columbia University

    of the project was to recover the energy content of RDF generated by the recycling plant of the city of Madrid neutralisation of the acid flue gases within the oven by the addition of limestone or dolomite, and dry and clean slag, 5. Lower operating and maintenance costs. The plant meets all European environmental legislation

  4. DL-945 1/09 Animal Health Diagnostic Center

    E-Print Network [OSTI]

    Keinan, Alon

    Recommendations for Horse Handlers Related to Contagious Equine Metritis or Other Reproductive System Infections infectious diseases, including Contagious Equine Metritis (CEM). CEM is spread primarily by breeding information regarding Contagious Equine Metritis, see the following fact sheets: (USDA APHIS) http://www

  5. 18 Modeling high-performance HBTs D.L. Pulfrey

    E-Print Network [OSTI]

    Pulfrey, David L.

    which may be useful in the engineering design of high-frequency and high-speed devices-off frequency, fT which, in its turn, is related to the unity gain, power cut-off frequency, fmax. These two circuit suitable for the simulation of HBTs in switching applications. 18.2 Microscopic modeling of HBTs

  6. Facies analyses and environment of deposition for the Jurassic "A" zone of the "Mulussa" (Dolaa) Group, in the Homs block, Syria 

    E-Print Network [OSTI]

    Quintana, Miguel Alfredo

    1988-01-01

    mainly sequences of alternating limestone, dolomite, anhydrite, rare siltstones, and shales. These rocks are interpreted to represent tidal-flat and sabkha deposits along the southeast margin of the Palmyrid trough along the Rutbah high... of the Horns block, with wells and Jurassic outcrops (shaded pattern). Position of Palmyrid Trough within the Arabian Plate (Adapted from Lovelock, 1984) Major structural framework surrounding the Horns block (After Rowell and Swan- son, 1984...

  7. Crinoids of the LaSalle Limestone (Pennsylvanian) of Illinois

    E-Print Network [OSTI]

    Strimple, H. L.; Moore, R. C.

    1971-08-04

    , slender; radial facets wide, bearing transverse ridge and ligament pits; arms branching iso- tomously on first primibrach or unbranched, pinnulate; stem pentagonal or round (syn., Scytalecrinidae BATHER, 1899). GENERA.—Scytalocrinus WACHSMUTH & SPRINGER... Contributions cups, and three anal plates in the cup, but differ in having five infrabasals. Fusion of infrabasals, reducing five to three, is a process which may be expected in the evolution of late Paleozoic inadunates. The stem of Hydriocrinus is pentagonal...

  8. Experimental High Velocity Acid Jetting in Limestone Carbonates 

    E-Print Network [OSTI]

    Holland, Christopher

    2014-04-30

    Acid jetting is a well stimulation technique that is used in carbonate reservoirs. It typically involves injecting acid down hole at high flow rates through small orifices which cause high velocities of acid to strike the borehole wall...

  9. Consolidant particle transport in limestone, concrete and bone 

    E-Print Network [OSTI]

    Campbell, Alanna Stacey

    2013-11-28

    The use of chemically compatible nano and fine particle colloidal consolidants is a new development within the field of cultural heritage conservation and applied most widely so far to the historic built environment. The ...

  10. Investigation of Sulfur Removal by Direct Limestone Injection 

    E-Print Network [OSTI]

    Colaluca, M. A.; Maloney, D. J.

    1990-01-01

    by the injected particles. The models were then used to predict extent of capture at the high-pressure, high-temperature, short residence time condition of interest. The goal was to first investigate capture in a single-pulse reactor (combustion bomb...

  11. Limestone County, Alabama: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: EnergyLebanonTexas:Hill,Photovoltaic Jump to:Lima,Energy

  12. Limestone County, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: EnergyLebanonTexas:Hill,Photovoltaic Jump to:Lima,EnergyTexas:

  13. Limestone Creek, Florida: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: EnergyLebanonTexas:Hill,Photovoltaic Jump

  14. A Comparative Study of Dolomite Dissolution in Simple Organic Acids and Chelating Agents 

    E-Print Network [OSTI]

    Adenuga, Olusegun O

    2013-05-03

    into the formations. Alternative fluids such as acetic and formic acid have lent themselves to retarded reaction rates, low corrosivity and reduced tendency to form acid/oil sludge in asphaltene-rich crudes but for high reaction rate problems. Chelating agents...

  15. Dolomite formation in the dynamic deep biosphere: results from the Peru Margin

    E-Print Network [OSTI]

    Gilli, Adrian

    /680, 1229/681 and 1230/685) and analysed for petrography, mineralogy, d13 C, d18 O and 87 Sr/86 Sr values with the d13 C values of the dissolved inorganic carbon in the associated modern porewater. Both petrography

  16. Sabkha and Burrow-Mediated Dolomitization in the Mississippian Debolt Formation, Northwestern

    E-Print Network [OSTI]

    Konhauser, Kurt

    Arduino and Deodat Gratet de Dolomieu in the 18th century. Despite being an abundant mineral in the rock

  17. Evaluation of sulfate resistance of calcined dolomite activated ground granulated plastfurnace slag

    E-Print Network [OSTI]

    Gu, Kai; Jin, Fei; Al-Tabbaa, Abir; Shi, Bin; Tang, Chaosheng

    2015-01-01

    , A., Tewari, V. K., and Prakash, S. (2008). “Utilization of treated spent liquor sludge with fly 577 ash in cement and concrete.” Build. Environ., 43(6), 991–998. 578 Tariq, A., and Yanful, E. K. (2013). “A review of binders used in cemented paste...

  18. CREATING A GEOLOGIC PLAY BOOK FOR TRENTON-BLACK RIVER APPALACHIAN BASIN EXPLORATION

    SciTech Connect (OSTI)

    Douglas G. Patchen; Katharine Lee Avary; John M. Bocan; Michael Hohn; John B. Hickman; Paul D. Lake; James A. Drahovzal; Christopher D. Laughrey; Jaime Kostelnik; Taury Smith; Ron Riley; Mark Baranoski

    2005-04-01

    The Trenton-Black River Appalachian Basin Research Consortium has made significant progress toward their goal of producing a geologic play book for the Trenton-Black River gas play. The final product will include a resource assessment model of Trenton-Black River reservoirs; possible fairways within which to concentrate further studies and seismic programs; and a model for the origin of Trenton-Black River hydrothermal dolomite reservoirs. All seismic data available to the consortium have been examined. Synthetic seismograms constructed for specific wells have enabled researchers to correlate the tops of 15 stratigraphic units determined from well logs to seismic profiles in New York, Pennsylvania, Ohio, West Virginia and Kentucky. In addition, three surfaces for the area have been depth converted, gridded and mapped. A 16-layer velocity model has been developed to help constrain time-to-depth conversions. Considerable progress was made in fault trend delineation and seismic-stratigraphic correlation within the project area. Isopach maps and a network of gamma-ray cross sections supplemented with core descriptions allowed researchers to more clearly define the architecture of the basin during Middle and Late Ordovician time, the control of basin architecture on carbonate and shale deposition and eventually, the location of reservoirs in Trenton Limestone and Black River Group carbonates. The basin architecture itself may be structurally controlled, and this fault-related structural control along platform margins influenced the formation of hydrothermal dolomite reservoirs in original limestone facies deposited in high energy environments. This resulted in productive trends along the northwest margin of the Trenton platform in Ohio. The continuation of this platform margin into New York should provide further areas with good exploration potential. The focus of the petrographic study shifted from cataloging a broad spectrum of carbonate rocks that occur in the Trenton-Black River interval to delineation of regional limestone diagenesis in the basin. A consistent basin-wide pattern of marine and burial diagenesis that resulted in relatively low porosity and permeability in the subtidal facies of these rocks has been documented across the study area. Six diagenetic stages have been recognized: four marine diagenesis stages and two burial diagenesis stages. This dominance of extensive marine and burial diagenesis yielded rocks with low reservoir potential, with the exception of fractured limestone and dolostone reservoirs. Commercial amounts of porosity, permeability and petroleum accumulation appear to be restricted to areas where secondary porosity developed in association with hydrothermal fluid flow along faults and fractures related to basement tectonics. A broad range of geochemical and fluid inclusion analyses have aided in a better understanding of the origin of the dolomites in the Trenton and Black River Groups over the study area. The results of these analyses support a hydrothermal origin for all of the various dolomite types found to date. The fluid inclusion data suggest that all of the dolomite types analyzed formed from hot saline brines. The dolomite is enriched in iron and manganese, which supports a subsurface origin for the dolomitizing brine. Strontium isotope data suggest that the fluids passed through basement rocks or immature siliciclastic rocks prior to forming the dolomites. All of these data suggest a hot, subsurface origin for the dolomites. The project database continued to be redesigned, developed and deployed. Production data are being reformatted for standard relational database management system requirements. Use of the project intranet by industry partners essentially doubled during the reporting period.

  19. STRATIGRAPHY OF THE CAMBO-ORDOVICIAN SUCCESSION IN ILLINOIS

    SciTech Connect (OSTI)

    Lasemi, Yaghoob; Khorasgani, Zohreh; Leetaru, Hannes

    2014-09-30

    The Upper Cambrian through Lower Ordovician succession (Sauk II-III sequences) in the Illinois Basin covers the entire state of Illinois and most of the states of Indiana and Kentucky. To determine lateral and vertical lithologic variations of the rocks within the Cambro-Ordovician deposits that could serve as reservoir or seal for CO2 storage, detailed subsurface stratigraphic evaluation of the succession in Illinois was conducted. The Cambro-Ordovician succession in the Illinois Basin consists of mixed carbonate-siliciclastic deposits. Its thickness ranges from nearly 800 feet in the extreme northwest to nearly 8000 feet in the Reelfoot Rift in the extreme southeastern part of the state. In northern and central Illinois, the Cambro-Ordovician rocks are classified as the Cambrian Knox and the Ordovician Prairie du Chien Groups, which consist of alternating dolomite and siliciclastic units. In the southern and deeper part of the Illinois Basin, the Cambro-Ordovician deposits consist chiefly of fine to coarsely crystalline dolomite capped by the Middle Ordovician Everton Formation. Detailed facies analysis indicates that the carbonate units consist mainly of mudstone to grainstone facies (fossiliferous/oolitic limestone and dolomite) with relics of bioclasts, ooids, intraclasts and peloids recording deposition on a shallow marine ramp setting. The dominant lithology of the Knox and the overlying Prairie du Chien Group is fine to coarsely crystalline, dense dolomite. However, porous and permeable vugular or fractured/cavernous dolomite intervals that grade to dense fine to coarsely crystalline dolomite are present within the dolomite units. Several hundred barrels of fluid were lost in some of these porous intervals during drilling, indicating high permeability. The sandstone intervals are porous and permeable and are texturally and compositionally mature. The permeable sandstone and porous dolomite intervals are laterally extensive and could serve as important reservoirs to store natural gas, CO2 or hazardous waste material. Results of this study show that the Cambro-Ordovician Knox Group in the Illinois Basin and adjacent Midwestern regions may be an attractive target for CO2 sequestration because these rocks are 1) laterally extensive, 2) consist of some porous and permeable dolomite and sandstone intervals, and 3) contain abundant impermeable shale and carbonate seals.

  20. Petroleum potential of lower and middle Paleozoic rocks in Nebraska portion of Mid-Continent

    SciTech Connect (OSTI)

    Carlson, M.P. )

    1989-08-01

    Central North America during the Paleozoic was characterized by northern (Williston) and southern (Anadarko) depositional regimes separated by a stable Transcontinental arch. Nebraska lies on the southern flank of this arch and contains the northern zero edges of the lower and middle Paleozoic rocks of the southern regime. Most of these rocks are secondary dolomites with zones of excellent intercrystalline porosity. The Reagan-LaMotte Sandstones and the overlying Arbuckle dolomites are overlapped by Middle Ordovician rocks toward the Transcontinental arch. Rocks equivalent to the Simpson consist of a basal sand (St. Peter) and overlying interbedded gray-green shales and dolomitic limestones. An uppermost shale facies is present in the Upper Ordovician (Viola-Maquoketa) eastward and southward across Nebraska. The dolomite facies extends northward into the Williston basin. The Silurian dolomites, originally more widely deposited, are overlapped by Devonian dolomites in southeastern Nebraska. Upper Devonian rocks exhibit a regional facies change from carbonate to green-gray shale to black shale southeastward across the Mid-Continent. Mississippian carbonates overlap the Devonian westward and northward across the Transcontinental arch. Pennsylvanian uplift and erosion were widespread, producing numerous stratigraphic traps. Sands related to the basal Pennsylvanian unconformity produce along the Cambridge arch. Arbuckle, Simpson, Viola, and Hunton production is present in the Forest City basin and along the Central Kansas uplift. Although source rocks are scarce and the maturation is marginal, current theories of long-distance oil migration encourage exploration in the extensive lower and middle Paleozoic reservoirs in this portion of the Mid-Continent.

  1. Table of Contents Chapter and Content Pages

    E-Print Network [OSTI]

    Fouke, Bruce W.

    ............................................ 38 - 40 A. Petrography and Composition of Dolomites B. Timing of Dolomitization C. Composition

  2. Formation of dl-limonene in used tire vacuum pyrolysis oils. [dipentene

    SciTech Connect (OSTI)

    Pakdel, H.; Roy, C.; Aubin, H.; Jean, G. ); Coulombe, S. )

    1991-09-01

    Tire recycling has become an important environmental issue recently due to the huge piles of tires that threaten the environment. Thermal decomposition of tire, a synthetic rubber material, enables the recovery of carbon black and liquid hydrocarbon oils. Both have potential economic values. Pyrolysis oils obtained under vacuum conditions contain a significant portion of a volatile, naptha-like fraction with an octane number similar to petroleum naphtha fraction, in addition, contains approximately 15% limonene. Potential applications of vacuum pyrolysis oil and carbon black have been investigated. However, the process economics is greatly influenced by the quality of the oil and carbon black products. This paper discusses limonene formation during used tire vacuum pyrolysis and its postulated reaction mechanism. The limonene separation method from pyrolysis oil, as well as its purification in laboratory scale, and structural characterization are discussed. Large-scale limonene separation and purification is under investigation.

  3. 3.1.1.2 Feed Processing and Handling DL2 Final Report

    SciTech Connect (OSTI)

    Elliott, Douglas C.; Magnuson, Jon K.; Wend, Christopher F.

    2006-09-30

    This milestone report is the deliverable for our Feed Processing and Handling project. It includes results of wet biomass feedstock analysis, slurry pumping information, fungal processing to produce a lignin-rich biorefinery residue and two subcontracted efforts to quantify the amount of wet biomass feedstocks currently available within the corn processing and paper processing industries.

  4. TRIAC: A code for track measurements using image analysis tools D.L. Patiris a

    E-Print Network [OSTI]

    Blekas, Konstantinos

    .G. Ioannides a,* a Nuclear Physics Laboratory, Department of Physics, University of Ioannina, 451 10 Ioannina State Nuclear Track Detectors CR39. The program using image analysis tools counts the number of tracks exposed to a radon rich environment. The system was also tested to differentiate tracks recorded by alpha

  5. TFI: RTEfuST, T{ ftd rDl-.I: 91.1.1.41493997

    E-Print Network [OSTI]

    Bandyopadhyay, Antar

    in the electrical substation area in lSl Campus, Delhi Centre, New Delhi. of work Surface dressing of the gronndour the archltectural drawinqs and the dlrections of engineer-in-charge . (Cost of aluminium snap beading sha be paid on the body / piate with double spring mechanism and door weight upto 125 kg, for doors, including cost

  6. DL-Lite with Attributes and Datatypes Alessandro Artale and Vladislav Ryzhikov

    E-Print Network [OSTI]

    Kontchakov, Roman

    .g., the concept inclusion salary- Real can be used to constrain the range of attribute salary to the type Real. However, this means that even if associated Employee Researcher Professor salary (Real) salary ({35K­70K}) salary ({55K­100K}) Figure 1. Salary example with different concepts, attributes sharing the same name

  7. DEPXRTMEKT OF ENV]RO~:MENTAL F'ROTECTION DlVklOh OF

    Office of Legacy Management (LM)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and Myers Co -VANaval ,, *' ;x-L*Qwner -RL5-OOE. *

  8. ANALYTICAL DATA SHEET ANALYTICAL DEPT. - HEALTH AhD SAFETY DlVlSlDN

    Office of Legacy Management (LM)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and Myers Co -VANaval Ordnance,:n5.5.8GE 1AE;;;: 61c

  9. ANALYTICAL DATA SHEET ANALYTICAL DEPT. - HEALTH Al\rD SAFETY DlVlSlON

    Office of Legacy Management (LM)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and Myers Co -VANaval Ordnance,:n5.5.8GE 1AE;;;:

  10. ANALYTICAL DATA SHEET hlul ANALYTICAL DEPT. - HEALTH ANI SAFETY DlVlSlON

    Office of Legacy Management (LM)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and Myers Co -VANaval Ordnance,:n5.5.8GE 1AE;;;:hlul

  11. DOE/SC-ARM-13-003 ARM Lead Mentor Selection Process DL Sisterson

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HAB Packet HanfordDOE ProjectREMOTE-HANDLED TRU764 The Arctic63 ARM

  12. dlCC Opt: Optimization Software for Renewable Energy Projects - Energy

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLos AlamosSimulationdetonation detection |Innovation Portal Wind

  13. Sulfur removal in advanced two stage pressurized fluidized bed combustion. Technical report, 1 March--31 May 1994

    SciTech Connect (OSTI)

    Abbasian, J.; Chowdiah, P.; Hill, A.H.; Rue, D.M. [Inst. of Gas Technology, Chicago, IL (United States)

    1994-09-01

    The objective of this study is to obtain data on the rates of reaction between hydrogen sulfide (H{sub 2}S) and uncalcined calcium-based sorbents under operating conditions relevant to first stage (carbonizer) of Advanced Two-Stage Pressurized Fluidized-Bed Combustors (PFBC). In these systems the CO{sub 2} partial pressure in the first stage generally exceeds the equilibrium value for calcium carbonate decomposition. Therefore, removal of sulfur compounds takes place through the reaction between H{sub 2}S and calcium carbonate. To achieve this objective, the rates of reaction between hydrogen sulfide and uncalcined calcium-based sorbents will be determined by conducting tests in pressurized thermogravimetric analyzer (TGA) and high-pressure/high-temperature fluidized-bed reactor (HPTR) units. The effects of sorbent type, sorbent particle size, reactor temperature and pressure, and CO{sub 2} and H{sub 2}S partial pressures on the sulfidation reaction rate will be determined. During this quarter a series of sulfidation tests were conducted in the high-pressure/high-temperature fluidized-bed reactor (HPTR) units. The effects of sorbent type, sorbent particle size, reactor temperature and pressure, and CO{sub 2} and H{sub 2}S partial pressures on the sulfidation reaction rate will be determined. During this quarter a series of sulfidation tests were conducted in the high-pressure high-temperature thermogravimetric analyzer (HPTGA unit) using limestone and dolomite. The results suggest that half-calcined dolomite is much more reactive than uncalcined limestone. Also, temperature in the range of 800 to 950 C did not significantly affect the sulfidation reaction rates for both limestone and dolomite.

  14. LIMB Demonstration Project Extension

    SciTech Connect (OSTI)

    Not Available

    1990-09-21

    The DOE LIMB Demonstration Project Extension is a continuation of the EPA Limestone Injection Multistage Burner (LIMB) Demonstration. EPA ultimately expects to show that LIMB is a low cost control technology capable of producing moderate SO{sub x} and NO{sub x} control (50--60 percent) with applicability for retrofit to the major portion of the existing coal-fired boiler population. The current EPA Wall-Fired LIMB Demonstration is a four-year project that includes design and installation of a LIMB system at the 105-MW Unit 4 boiler at Ohio Edison's Edgewater Station in Lorain, Ohio. LIMB Extension testing continued during the quarter with lignosulfonated hydrated lime, pulverized limestone, and hydrated dolomitic lime while firing 1.8% and 3% sulfur coals. Sulfur dioxide removal efficiencies were equivalent to the results found during EPA, base LIMB testing. Sulfur dioxide removal efficiencies were lower than expected while testing with pulverized limestone without humidification. A slight increase in sulfur capture was noted while injecting pulverized limestone at the 187' elevation and with the humidifier outlet temperature at 145{degree}F.

  15. Facies and Reservoir Characterization of the Permian White Rim Sandstone, Black Box Dolomite, and Black Dragon Member of the Triassic

    E-Print Network [OSTI]

    Seamons, Kent E.

    of Geological Sciences, BYU Master of Science Geologic sequestration of anthropogenic carbon dioxide (CO2, and Black Dragon Member of the Triassic Moenkopi Formation for CO2 Storage and Sequestration at Woodside Formation, for CO2 Sequestration at Woodside Field, East-central Utah Walter Harston Department

  16. Value engineering the construction of long tunnels in the dolomites of northern Illinois, United States of America

    SciTech Connect (OSTI)

    Laughton, Christopher; /Fermilab

    2000-01-01

    Fermi National Accelerator Laboratory (Fermilab), a high-energy physics laboratory operated by the Universities Research Association for the US Department of Energy, is developing plans for the construction of accelerator tunnels. The accelerator designs vary as a function of particles accelerated, technologies used and energies targeted. However, all accelerators require the excavation of long tunnels, up to 700 km in length, and tunnel costs represent a major portion of project budgets. This paper documents the findings of two studies undertaken to identify tunnel cost-drivers and outlines steps taken to initiate the ''value engineering'' of the tunnels.

  17. Reviving Abandoned Reservoirs with High-Pressure Air Injection: Application in a Fractured and Karsted Dolomite Reservoir

    SciTech Connect (OSTI)

    Robert Loucks; Stephen C. Ruppel; Dembla Dhiraj; Julia Gale; Jon Holder; Jeff Kane; Jon Olson; John A. Jackson; Katherine G. Jackson

    2006-09-30

    Despite declining production rates, existing reservoirs in the United States contain vast volumes of remaining oil that is not being effectively recovered. This oil resource constitutes a huge target for the development and application of modern, cost-effective technologies for producing oil. Chief among the barriers to the recovery of this oil are the high costs of designing and implementing conventional advanced recovery technologies in these mature, in many cases pressure-depleted, reservoirs. An additional, increasingly significant barrier is the lack of vital technical expertise necessary for the application of these technologies. This lack of expertise is especially notable among the small operators and independents that operate many of these mature, yet oil-rich, reservoirs. We addressed these barriers to more effective oil recovery by developing, testing, applying, and documenting an innovative technology that can be used by even the smallest operator to significantly increase the flow of oil from mature U.S. reservoirs. The Bureau of Economic Geology and Goldrus Producing Company assembled a multidisciplinary team of geoscientists and engineers to evaluate the applicability of high-pressure air injection (HPAI) in revitalizing a nearly abandoned carbonate reservoir in the Permian Basin of West Texas. The Permian Basin, the largest oil-bearing basin in North America, contains more than 70 billion barrels of remaining oil in place and is an ideal venue to validate this technology. We have demonstrated the potential of HPAI for oil-recovery improvement in preliminary laboratory tests and a reservoir pilot project. To more completely test the technology, this project emphasized detailed characterization of reservoir properties, which were integrated to access the effectiveness and economics of HPAI. The characterization phase of the project utilized geoscientists and petroleum engineers from the Bureau of Economic Geology and the Department of Petroleum Engineering (both at The University of Texas at Austin) to define the controls on fluid flow in the reservoir as a basis for developing a reservoir model. The successful development of HPAI technology has tremendous potential for increasing the flow of oil from deep carbonate reservoirs in the Permian Basin, a target resource that can be conservatively estimated at more than 1.5 billion barrels. Successful implementation in the field chosen for demonstration, for example, could result in the recovery of more than 34 million barrels of oil that will not otherwise be produced. Geological and petrophysical analysis of available data at Barnhart field reveals the following important observations: (1) the Barnhart Ellenburger reservoir is similar to most other Ellenburger reservoirs in terms of depositional facies, diagenesis, and petrophysical attributes; (2) the reservoir is characterized by low to moderate matrix porosity much like most other Ellenburger reservoirs in the Permian Basin; (3) karst processes (cave formation, infill, and collapse) have substantially altered stratigraphic architecture and reservoir properties; (4) porosity and permeability increase with depth and may be associated with the degree of karst-related diagenesis; (5) tectonic fractures overprint the reservoir, improving overall connectivity; (6) oil-saturation profiles show that the oil-water contact (OWC) is as much as 125 ft lower than previous estimations; (7) production history and trends suggest that this reservoir is very similar to other solution-gas-drive reservoirs in the Permian Basin; and (8) reservoir simulation study showed that the Barnhart reservoir is a good candidate for HPAI and that application of horizontal-well technology can improve ultimate resource recovery from the reservoir.

  18. Effects of fertilization on the vascular ground vegetation of European beech (Fagus sylvatica L.) and sessile oak (Quercus petraea (Matt.) Lieb.) stands

    E-Print Network [OSTI]

    Misson, Laurent

    2001-01-01

    F. , Impact of dolomite lime on the ground vegetation and ontreatment were applied next to control plots (dolomite lime,dolomite lime + natural phosphate + potassium sulphate).

  19. Carbonate seismic stratigraphy of Cretaceous Paso Caballos basin, Guatemala: new structures in a structureless basin

    SciTech Connect (OSTI)

    Pigott, J.D.; Mazariegos, R.; Forgotson, J.M. Jr.

    1989-03-01

    Previous exploration in the carbonate and evaporite sequences of the Paso Caballos basin focused primarily upon structural plays. Early data acquisition and processing purposely excluded the resolution advantages of broad frequency ranges and ignored the problems of statics. Interpretations based on these data were predictably unsuccessful in this large, presently karsted, Cretaceous shallow marine platform. Seismic stratigraphic analysis of 735.5 km of statics-corrected, broad-band, zero-phase dynamic and Vibroseis data acquired in 1981 and 1982 delineates four seismic sequences within the Cretaceous (in increasing age): The Lacandon-Barton Creek limestone sequence, the upper Coban salt sequence, the middle Coban dolomitic salt sequence, and the Lower Cretaceous dolomitic sequence. The sequences overlying the faulted and folded Lower Cretaceous dolomitic sequence are relatively smooth and dip at a low angle toward a depocenter to the northwest. Within the carbonate section of the upper Coban salt sequence are several large (45 km/sup 2/), mounded structures with substantial lateral and vertical variations in both reflection group configurations and wavelet characteristics. Detailed modeling and attribute analysis offer additional insight into the interpretation of these structures. For example, analysis of one such feature, the Santa Amelia structure, shows notched frequency attenuation off structure, which suggests permeable hydrocarbon-filled porosities on the flank isolated and sealed from a wet structural center.

  20. Biostromal Coral Facies -A Miocene Example from the Leitha Limestone (Austria) and its

    E-Print Network [OSTI]

    Bahamas (Andros,Exu- ma Cays)and theArabian Gulf(Dubai, UAE).Accordingto the model presented of benthic biota in the Arabian Gulf (JebelAli, Dubai, UAE)wasusedto illustrate the likely lateral, 1991;Piller et al.,1996).The coralsgrewona shoal or closeto a string of islands, in a relatively low

  1. Geology of the Northwest Wortham area, Navarro, Limestone, and Freestone counties, Texas 

    E-Print Network [OSTI]

    Brown, Clifford Littleton

    1966-01-01

    conveying ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 33 7, Geometric mean diameter effects on the driving requirements of a pneumatic conveyor . 33 8. Dimensional analysis appliei to pneumatic conveying... OF FIGURES Page The closed-oirouit pneumatic conveyor flow diagzam . . . , , . 10 The piping section after material feeding, showing some piescmeter rings, solenoid valves and ssu. ifold system which leads to the manometer, Also shown is the location...

  2. Paleoenvironmental significance of stromatolites in the Americus Limestone Member (Lower Permian, Midcontinent, USA)

    E-Print Network [OSTI]

    Denver, L. E.; Kaesler, R. L.

    1992-08-01

    , and the bases contain brecciated material with Spirorbis worm tubes, foraminifera-rich sediment, and alga-rich micrite. The roof above the pustules varies from fine peloidal mud to algal and foraminiferal remains with few worm tubes. Desiccation or fracturing.... No alga-rich layers or preserved algal tubules were ob- served. The rock is characterized by horizontal and verti- cal fenestrae up to 2 cm long that are lined with clear, equant spar; but the fenestrae are otherwise open (Fig. 8,6) . Samples from locality...

  3. Paleoautecology of Caninia torquia (Owen) from the Beil Limestone Member (Pennsylvanian, Virgilian), Kansas

    E-Print Network [OSTI]

    Maerz, R. H., Jr.

    1978-06-14

    that supported only sediment-binding algae and other organisms tolerant of a restricted environment. The coral fauna of the Beil Member is dominated by one species of rugose coral, Caninia torquia ( Owen), which is abundant in rocks representing maximum... transgression of the unit, and where phylloid algae formed incipient mounds. Other organisms, particularly bryozoans, commonly encrust the corals; but none displays a preferred position. Corals occur in poorly defined clusters, possibly as the result...

  4. 3D simulations of an injection test done into an unsaturated porous and fractured limestone

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    slopes or the sealing of underground storage sites (hydrocarbon, radioactive and industrial waste to characterize porous and fractured rock environments in which CO2 could be stored. This program focuses

  5. Hydrochemical Impacts of Limestone Rock Mining Ghinwa M. Naja & Rosanna Rivero &

    E-Print Network [OSTI]

    Demers, Nora Egan

    to excavation are causing ecological problems from erosion, formation of sinkholes, biodiversity loss, and heavy

  6. DEPOSITIONAL AND PALEOENVIRONMENTAL SETTINGS OF CRETACEOUS LIMESTONES IN THE GREATER ANTILLES

    E-Print Network [OSTI]

    Bonilla-Rodrí guez, Alvin J.

    2014-12-31

    ranges. In particular, this study shows the practical uses of strontium isotope stratigraphy in tectonically complex areas that lack good biostratigraphic controls. Our results show similar strontium isotope (87Sr/86Sr) derived ages from the middle...

  7. The use of FBC wastes in the reclamation of coal slurry solids. Technical report, March 1, 1992--May 31, 1992

    SciTech Connect (OSTI)

    Dreher, G.B.; Roy, W.R.; Steele, J.D. [Illinois State Geological Survey, Champaign, IL (United States)

    1992-10-01

    Fluidized bed combustion (FBC) is a relatively new technology that is used commercially for the combustion of coal. In Illinois, this technology is valuable because it allows the combustion of Illinois high sulfur coal without pollution of the atmosphere with vast quantities of sulfur oxides. In FBC, coal is mixed with limestone or dolomite either before injection into the combustion chamber or in the combustion chamber. As the coal burns, sulfur in the coal is oxidized to S0{sub 2} and this is trapped by reaction with the limestone or dolomite to form gypsum (CaSO{sub 4} {center_dot} 2H{sub 2}O). Solid by-products from FBC are generally a mixture of calcium oxide, gypsum, coal ash, and unburned coal. The present research project is designed to provide initial data on one possible use of FBC waste. FBC wastes from five different locations in Illinois are mixed with coal slurry solids (CSS) from two different coal preparation plants at Illinois coal mines. In mixtures of FBC waste and coal slurry solids, the alkaline components of the FBC waste are expected to react with acid produced by the oxidation of pyrite in the coal slurry solid. An objective of this research is to determine the chemical composition of aqueous leachates from mixtures of FBC wastes, generated under various operating conditions, and the coal slurry solids. These data will be used in future research into the ability of such mixtures to support seed germination and plant growth. The final goal of this and future research is to determine whether mixed FBC waste and coal slurry solids can be used as a satisfactory growing medium in slurry pond reclamation. The chemical analyses of the 8 starting solids (5 FBC wastes, 2 Css samples, and 1 agricultural limestone sample) were completed.

  8. Paint Rock and southwest Paint Rock fields, Concho County, Texas: Strawn analogs of modern island carbonate facies of Ambergris Cay, Belize

    SciTech Connect (OSTI)

    Reid, A.M.; Mazzullo, S.J.

    1987-02-01

    Lower Strawn (Desmoinesian Goen Limestone) reservoirs at Paint Rock and Southwest Paint Rock fields are a complex of carbonate and associated facies interpreted as having been deposited in various environments on and around large, emergent islands on shallow carbonate shelves. The origin and geometries of the component lithofacies in these fields, and their reservoir diagenetic histories, are similar to those presently accumulating on Ambergris Cay, a linear island complex on the northern shelf of Belize. Paint Rock field originated as a narrow, elongate Chaetetes reef trend that formed the foundation on which the overlying island facies were deposited. As on Ambergris Cay, these reef limestones developed extensive porosity during postdepositional subaerial exposure due to meteoric leaching. In contrast, Southwest Paint Rock field is cored by older island deposits rather than reef limestones. With ensuing stillstand or subsequent sea level rise, beach grainstones were deposited along the windward and leeward margins of the foundation highs in these fields. Tight lagoonal micrites and coals (peat-swamp facies) comprise the inner island facies, and are locally associated with porous supratidal dolomites. These island complexes are transected locally by tidal channels that are filled with nonporous micrites. Repeated sea level fluctuations during the history of these fields resulted in a characteristic cyclic stratigraphy of stacked island facies and reservoirs. The reservoirs in the field are developed in the bedrock or older island cores, as well as in the overlying beach facies and supratidal dolomites. These fields are mappable as linear stratigraphic traps with low-relief closure, and are readily identified by subsurface geologic and facies analyses. Similar shelf island-type fields analogous to these strawn and Holocene Belizean examples are found throughout the Midland basin and Eastern shelf.

  9. Engineering characteristics of bedrock for the proposed superconducting super collider in Illinois

    SciTech Connect (OSTI)

    Bauer, R.A.; Curry, B.; Vaiden, R.C.; Graese, A.M.; Dixon, W.; Su, W.J.

    1985-01-01

    Sixteen test holes were drilled in a 36-township area in northeastern Illinois as part of a geological feasibility study for the proposed Superconducting Super Collider. Bedrock tunneling suitability is being characterized by comprehensive testing of continuous core of lower Silurian, Ordovician and upper Cambrian units. Tests include unconfined compressive (UCS) and indirect tensile strength (ITS), fracture spacing, rock quality designation, drilling rate and water injection tests. Preliminary results indicate that the 38-m thick Wise Lake Formation of the Ordovician Galena Group is best suited for tunnel construction. The Wise Lake is a vuggy, fossiliferous dolomite with subordinate limestone. Two joint sets oriented N50E and N50W are found in this unit with spacings between joints of about 0.8 m. The overlying Maquoketa Shale Group consists of basal shales from 1 to 22 m thick which are overlain by interbeds of dolomitic shale and dolomite. The Silurian Formations are composed chiefly of fine-grained cherty dolomite; engineering characteristics are similar to the Wise Lake Formation. The upper 3 to 4 m of bedrock can be severely jointed and weathered; permeability ranges from 1.0 x 10/sup -3/ to 1.0 x 10/sup -4/ cm/sec. Although the ring design and national location have not been decided, the geotechnical data indicate that the most favorable tunneling conditions at the Illinois site are 130 to 150 m below the ground surface in the Wise Lake Formation of the Galena Group. By comparison, conditions are more favorable than similar test data developed for the successful TARP project in Chicago.

  10. Frank Masci (1)MIPS D/L Review (S6), August 7, 2001 Optical Distortion and its Representation

    E-Print Network [OSTI]

    Masci, Frank

    to represent distortion in FITS headers: ¤ We will adopt the "TNX" representation for now which was initiated by the IAU. An example is the PV-system proposed by Calabretta & Greisen (2000), similar to that used in DSS

  11. Newbie here. Is there any software/site which can poll my utility to D/L my

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg, Oregon: Energy Resources Jump to: navigation,Water &green

  12. PMC·Fr.. U.S. Dl?PARThIENT OFFNFRGY EERE PROJECT MANAGEMENT CE~TER

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy Bills andOrder 422.1, CONDUCT P - . . - - 4 v -

  13. Geologic constraints to fluid flow in the Jurassic Arab D reservoir, eastern Saudi Arabia

    SciTech Connect (OSTI)

    Laing, J.E. (Saudi Aramco, Dhahran (Saudi Arabia))

    1991-08-01

    A giant oil field located in eastern Saudi Arabia has produced several billion barrels of 37{degree} API oil from fewer than 100 wells. The Upper Jurassic Arab Formation is the main producing unit, and is made up of a series of upward-shoaling carbonate and anhydrite members. Porous carbonates of the Arab D member make up the principle oil reservoir, and overlying Arab D anhydrite provides the seal. Principal reservoir facies are stromatoporoid-coral and skeletal grainstones. Reservoir drive is currently provided by flank water injection. Despite more than 30 years of flank water injection (1.5 billion bbl) into the northern area of the field, a thick oil column remains in the Arab D reservoir. Geological factors which affect fluid flow in this area are (1) a downdip facies change from permeable skeletal-stromatoporoid limestone to less permeable micritic limestone, (2) vertical permeability barriers resulting from shoaling-upward cycles, (3) a downdip tar mat, (4) dolomite along the flanks in the upper portion of the reservoir, (5) highly permeable intervals within the skeletal-stromatoporoid limestone, and (6) an updip, north to south facies change from predominantly stromatoporoid-coral grainstone to skeletal grainstone. These factors are considered in reservoir modeling, simulation studies, and planning locations for both water injection and producer wells.

  14. Nitrogen Dioxide Absorption and Sulfite Oxidation in Aqueous Sulfite

    E-Print Network [OSTI]

    Rochelle, Gary T.

    oxidation in limestone slurry scrubbing. Introduction Limestone (CaCO3) slurry scrubbing and lime (Ca

  15. Mineral Resource Information System for Field Lab in the Osage Mineral Reservation Estate

    SciTech Connect (OSTI)

    Carroll, H.B.; Johnson, William I.

    1999-04-27

    The Osage Mineral Reservation Estate is located in Osage County, Oklahoma. Minerals on the Estate are owned by members of the Osage Tribe who are shareholders in the Estate. The Estate is administered by the Osage Agency, Branch of Minerals, operated by the U.S. Bureau of Indian Affairs (BIA). Oil, natural gas, casinghead gas, and other minerals (sand, gravel, limestone, and dolomite) are exploited by lessors. Operators may obtain from the Branch of Minerals and the Osage Mineral Estate Tribal Council leases to explore and exploit oil, gas, oil and gas, and other minerals on the Estate. Operators pay a royalty on all minerals exploited and sold from the Estate. A mineral Resource Information system was developed for this project to evaluate the remaining hydrocarbon resources located on the Estate. Databases on Microsoft Excel spreadsheets of operators, leases, and production were designed for use in conjunction with an evaluation spreadsheet for estimating the remaining hydrocarbons on the Estate.

  16. The use of FBC wastes in the reclamation of coal slurry solids. Technical report, September 1--November 30, 1991

    SciTech Connect (OSTI)

    Dreher, G.B.

    1991-12-31

    Fluidized bed combustion (FBC) is a relatively new technology that is used commercially for the combustion of coal. In Illinois, this technology is valuable because it allows the combustion of Illinois high sulfur coal without pollution of the atmosphere with vast quantities of sulfur oxides. In FBC, coal is mixed with limestone or dolomite either before injection into the combustion chamber or in the combustion chamber. As the coal burns, sulfur in the coal is oxidized to SO{sub 2} and this is trapped by reaction with the limestone or dolomite to form gypsum (CaSO{sub 4}{center_dot}2H{sub 2}O). Solid by-products from FBC are generally a mixture of calcium oxide, gypsum, coal ash, and unburned coal. The present research project is designed to provide initial data on one possible use of FBC waste. FBC wastes from five different locations in the Illinois are mixed with coal slurry solids from two different coal preparation plants at Illinois coal mines. In mixtures of FBC waste and coal slurry solids, the alkaline components of the FBC waste are expected to react with acid produced by the oxidation of pyrite in the coal slurry solid. An objective of this research is to determine the chemical composition of aqueous leachates from mixtures of FBC wastes, generated under various operating conditions, and the coal slurry solids. These data will be used in future research into the ability of such mixtures to support seed germination and plant growth. The ultimate of this and future research is to determine whether mixed FBC waste and coal slurry solids can be slurry pond reclamation.

  17. The use of FBC wastes in the reclamation of coal slurry solids

    SciTech Connect (OSTI)

    Dreher, G.B.

    1991-01-01

    Fluidized bed combustion (FBC) is a relatively new technology that is used commercially for the combustion of coal. In Illinois, this technology is valuable because it allows the combustion of Illinois high sulfur coal without pollution of the atmosphere with vast quantities of sulfur oxides. In FBC, coal is mixed with limestone or dolomite either before injection into the combustion chamber or in the combustion chamber. As the coal burns, sulfur in the coal is oxidized to SO{sub 2} and this is trapped by reaction with the limestone or dolomite to form gypsum (CaSO{sub 4}{center dot}2H{sub 2}O). Solid by-products from FBC are generally a mixture of calcium oxide, gypsum, coal ash, and unburned coal. The present research project is designed to provide initial data on one possible use of FBC waste. FBC wastes from five different locations in the Illinois are mixed with coal slurry solids from two different coal preparation plants at Illinois coal mines. In mixtures of FBC waste and coal slurry solids, the alkaline components of the FBC waste are expected to react with acid produced by the oxidation of pyrite in the coal slurry solid. An objective of this research is to determine the chemical composition of aqueous leachates from mixtures of FBC wastes, generated under various operating conditions, and the coal slurry solids. These data will be used in future research into the ability of such mixtures to support seed germination and plant growth. The ultimate of this and future research is to determine whether mixed FBC waste and coal slurry solids can be slurry pond reclamation.

  18. Critical porosity: The key to relating physical properties to porosity in rocks

    SciTech Connect (OSTI)

    Nur, A.M.; Mavko, G.; Dvorkin, J.; Gal, D.

    1995-12-31

    Many classes of rock such as sandstones, dolomites, chalks, and cracked igneous rocks have each a distinct characteristic porosity above which the material behaves as s suspension. The porosity at which this system changes, or transforms from isostress to solid load-bearing is defined here as the critical porosity {phi}{sub c}. It is easy to envision that at {phi}{sub c} not only the mechanical moduli, but also other properties such as strength and electrical conductivity, may also undergo transformations. Consequently, the critical porosity must be a fundamental property of a given porous system, not just of one of its physical properties. The observed values of {phi}{sub c} range from .005 for cracked granites to .30 or .40 for limestones, dolomites and sandstones, .60 for chalks and .90 for volcanic glasses. The data suggest that (1) A critical porosity value {phi}{sub c} exists which is typical of a given class of porous materials. Each class is defined on the basis of its common mineralogy or diagenetic porosity reduction processes. (2) Given {phi}{sub c} it may be possible to closely approximate the relation between porosity and velocity, over the entire range of porosity, with a modified mixture relation, in which the mixed components are the pure solid on one end, and a critical suspension on the other. (3) Without {phi}{sub c}, theory cannot yield reliable or useful velocity-porosity relations.

  19. Application of coiled-tubing-drilling technology on a deep underpressured gas reservoir

    SciTech Connect (OSTI)

    1997-06-01

    The Upper-Mississippian Elkton formation is a dolomitized shallow-water carbonate consisting of dense limestones and porous dolomites. The Elkton was deposited in an open-shelf environment as crinoid grainstones, coral packstones, and lime muds. Deposition of impermeable shales and siltstones of the Lower Cretaceous created the lateral and updip seals. Reservoir thickness can be up to 20 m, with porosities reaching 20% and averaging 10%. The reservoir gas contains approximately 0.5% hydrogen sulfide. Well 11-18 was to be completed in the Harmatten Elkton pool. The pool went on production in 1967 at an initial pressure of 23,500 kPa. At the current pressure of 16,800 kPa, the remaining reserves are underpressured at 6.5 kPa/m, and underbalanced horizontal drilling was selected as the most suitable technique for exploiting remaining reserves. Coiled-tubing (CT) technology was selected to ensure continuous underbalanced conditions and maintain proper well control while drilling. The paper describes the equipment, CT drilling summary, and drilling issues.

  20. Rietveld Analysis of X-ray Powder Diffraction Patterns as a Potential Tool for the Identification of Impact-deformed Carbonate Rocks

    SciTech Connect (OSTI)

    Huson, Sarah A.; Foit, Franklin F.; Watkinson, A. J.; Pope, Michael C.

    2009-11-01

    Previous X-ray powder diffraction (XRD) studies revealed that shock deformed carbonates and quartz have broader XRD patterns than those of unshocked samples. Entire XRD patterns, single peak profiles and Rietveld refined parameters of carbonate samples from the Sierra Madera impact crater, west Texas, unshocked equivalent samples from 95 miles north of the crater and the Mission Canyon Formation of southwest Montana and western Wyoming were used to evaluate the use of X-ray powder diffraction as a potential tool for distinguishing impact deformed rocks from unshocked and tectonically deformed rocks. At Sierra Madera dolostone and limestone samples were collected from the crater rim (lower shock intensity) and the central uplift (higher shock intensity). Unshocked equivalent dolostone samples were collected from well cores drilled outside of the impact crater. Carbonate rocks of the Mission Canyon Formation were sampled along a transect across the tectonic front of the Sevier and Laramide orogenic belts. Whereas calcite subjected to significant shock intensities at the Sierra Madera impact crater can be differentiated from tectonically deformed calcite from the Mission Canyon Formation using Rietveld refined peak profiles, weakly shocked calcite from the crater rim appears to be indistinguishable from the tectonically deformed calcite. In contrast, Rietveld analysis readily distinguishes shocked Sierra Madera dolomite from unshocked equivalent dolostone samples from outside the crater and tectonically deformed Mission Canyon Formation dolomite.

  1. Sequence Stratigraphy of the Lower Pennsylvanian (Bashkirian, Morrowan) Round Valley Limestone at Split Mountain (Dinosaur National Monument) and

    E-Print Network [OSTI]

    Seamons, Kent E.

    of Geological Sciences Brigham Young University April 2011 Copyright © 2011 Nathan Robert Davis All Rights Robert Davis Department of Geological Sciences Master of Science The Early Pennsylvanian (Bashkirian are characterized by mudstone and heterozoan wackestone-packstone microfacies (MF1-4) and comprise the lower

  2. An investigation of the creep phenomena exhibited by Solenhofen limestone, halite, and cement under medium confining pressures 

    E-Print Network [OSTI]

    Kendall, Halcombe Augustus

    1958-01-01

    SHORT-T II" 1' - T IN F I GURE 5. CONF INED SHORT-T IME T'- ' T IN vROGR. 8 26 F IGURE 6 F IGURE 7 CREEP TESTS IN PROG+' b~, SH' ~tNG AUXILIARY LOADING DEViCi FA I LURE OF SOLENHOF t N L I I'tc STONc SPECIMENS 2'7 JO FIGURE 8. FAILURE OF CEMENT... IN 19/7 ON ROCK SALT& AND BY 12 LAYS LIBRARY A BIB COLLEGE OF TEXAS IN 19/6~ GR I GGS DEFORMED L I MESTONE UNDER CONF I N ING 1 PRESSURES UP TO 13 F000 ATMOSPHERES ~ HE SHOWED THAT WHEN THE SPECIMENS WERE JACKETED' SO THAT THE KEROSENE (USED...

  3. Geochemical Impacts of Carbon Dioxide, Brine, Trace Metal and Organic Leakage into an Unconfined, Oxidizing Limestone Aquifer

    SciTech Connect (OSTI)

    Bacon, Diana H. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Dai, Zhenxue [Los Alamos National Laboratory, Los Alamos, NM (United States); Zheng, Liange [Lawrence Berkeley National Laboratory, Berkeley, CA (United States)

    2014-12-31

    An important risk at CO2 storage sites is the potential for groundwater quality impacts. As part of a system to assess the potential for these impacts a geochemical scaling function has been developed, based on a detailed reactive transport model of CO2 and brine leakage into an unconfined, oxidizing carbonate aquifer. Stochastic simulations varying a number of geochemical parameters were used to generate a response surface predicting the volume of aquifer that would be impacted with respect to regulated contaminants. The brine was assumed to contain several trace metals and organic contaminants. Aquifer pH and TDS were influenced by CO2 leakage, while trace metal concentrations were most influenced by the brine concentrations rather than adsorption or desorption on calcite. Organic plume sizes were found to be strongly influenced by biodegradation.

  4. Distribution and diversity of ostracode assemblages from the Hamlin Shale and the Americus Limestone (Permian, Wolfcampian) in northeastern Kansas

    E-Print Network [OSTI]

    Peterson, R. M.; Kaesler, R. L.

    1980-07-11

    by an ostracode algal lime mudstone with desiccation fractures partially filled with gyp- sum. W.L. Fisher (1980, personal communica- tion) postulated a carbonate beach or shoal in central Jackson County indicated by inter- bedded pelleted lime mudstones... numbers. Peterson & Kaesler—Ostracode Assemblages in Northeastern Kansas 7 pellet lime packstones to grainstones. Some of these rocks, especially at locality 12, contain abundant ooids and exhibit low-angle cross stratification. They also contain...

  5. Enhanced deformation of limestone and sandstone in the presence of high PCO2 fluids Yvi Le Guen,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    to the injection of large amounts of anthropogenic carbon dioxide will undergo chemical and mechanical The subsurface sequestration of CO2 in geological repositories is frequently cited as a promising solution- sues involved in the long-term sequestration of CO2 in such sites are discussed in an overview by [62

  6. Failure mode analysis for lime/limestone FGD system. Volume III. Plant profiles. Part 1 of 3

    SciTech Connect (OSTI)

    Kenney, S.M.; Rosenberg, H.S.; Nilsson, L.I.O.; Oxley, J.H.

    1984-08-01

    This volume contains plant profiles for: Petersburg 3; Hawthorn 3, 4; La Cygne 1; Jeffry 1, 2; Lawrence 4, 5; Green River 1-3; Cane Run 4, 5; Mill Creek 1, 3; Paddy's Run 6; Clay Boswell 4; Milton R. Young 2; Pleasants 1, 2; and Colstrip 1, 2. (DLC)

  7. Petrological and petrophysical causes for porosity reduction by bitumen plugging, Uwainat limestone (Middle Jurassic), Dukhan field, Qatar 

    E-Print Network [OSTI]

    Abdulla, Hezam Yahya H.

    2002-01-01

    , and fabric whereas the pores formed by diagenetic alteration are related to processes of leaching and pressure dissolution. Intergranular pores are the most abundant pore type present in Uwainat rocks; therefore, they are considered to be the primary...

  8. Geochemical Impacts of Carbon Dioxide, Brine, Trace Metal and Organic Leakage into an Unconfined, Oxidizing Limestone Aquifer

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Bacon, Diana H.; Dai, Zhenxue; Zheng, Liange

    2014-12-31

    An important risk at CO2 storage sites is the potential for groundwater quality impacts. As part of a system to assess the potential for these impacts a geochemical scaling function has been developed, based on a detailed reactive transport model of CO2 and brine leakage into an unconfined, oxidizing carbonate aquifer. Stochastic simulations varying a number of geochemical parameters were used to generate a response surface predicting the volume of aquifer that would be impacted with respect to regulated contaminants. The brine was assumed to contain several trace metals and organic contaminants. Aquifer pH and TDS were influenced by CO2more »leakage, while trace metal concentrations were most influenced by the brine concentrations rather than adsorption or desorption on calcite. Organic plume sizes were found to be strongly influenced by biodegradation.« less

  9. Performance of Typical Concrete Mixtures for Transportation Structures as Influenced by Portland-Limestone Cements from Five Sources

    E-Print Network [OSTI]

    , including 0% SCM, 25% Class C fly ash, 25% Class F fly ash, and 40% slag cement mixtures. All mixtures used

  10. Control of Sulfur Dioxide Emissions from Pulverized Coal-Fired Boilers by Dry Removal with Lime and Limestone Sorbants 

    E-Print Network [OSTI]

    Schwartz, M. H.

    1979-01-01

    Over the past decade increasing concern over the potential environmental impact associated with the emissions of both gaseous and particulate pollutants has resulted in the promulgation of strict regulatory standards ...

  11. Application of reservoir geology of enhanced oil recovery from upper Devonian Nisku Reefs, Alberta, Canada

    SciTech Connect (OSTI)

    Watts, N.R. (AEC Oil and Gas Company, Calgary, Alberta (Canada)); Coppold, M.P. (Imperial Oil Resources Limited (Esso), Calgary, Alberta (Canada)); Douglas, J.L. (Saudi Aramco, Dhahran (Saudi Arabia))

    1994-01-01

    The Upper Devonian West Pembina reef trend of west-central Alberta contains recoverable reserves of over 79 x 10[sup 6] m[sup 3] (500 million bbl) of oil and 1.4 x 10[sup 10] m[sup 3] (500 billion ft[sup 3]) of gas within approximately 50 pinnacle reefs in the Nisku Formation. Although the oil is saturated with gas at original reservoir pressure, primary depletion would soon lower the reservoir pressure below the bubble point, decreasing recovery. Thus, pressure maintenance is applied early in the producing life of the pools through waterflood or miscible flood schemes. Selection of the appropriate enhanced recovery scheme depends upon the internal flow-unit geometry of the reefs. The Bigoray Nisku C pool and the Pembina Nisku L pool form end members of the reservoir spectrum. They can be used as flow-unit models in the geological input for reservoir simulation studies. The Bigoray Nisku C pool is dominantly limestone. The primary textures, well perserved in this reef, provide the key to interpreting the relict textures in fully dolomitized reefs. Due to the presence of horizontal permeability barriers associated with the limestone lithology, the pool is developed with a waterflood displacement scheme. Ultimate recovery is estimated to be on the order of 0.55 x 10[sup 6] m[sup 3] (3.5 million bbl) or 46% or original oil in place (OOIP). The Pembina Nisku L pool is a completely dolomitized reef. In contrast to the Bigoray Nisku C pool, the complete dolomitization reduces the number of generic reservoir flow units observed in the L pool reef from six to three. Due to the excellent reservoir quality and absence of horizontal permeability barriers, it is being exploited by a vertical miscible flood. The Nisku L pool is one of the largest pinnacle reefs discovered in the Nisku reef fairway and contains an estimated 5 x 10[sup 6] m[sup 3] (31 million bbl) OOIP. Ultimate recovery is estimated to be approximately 4.1 x 10[sup 6] m[sup 3] (25.8 million bbl) or 82% of OOIP.

  12. Pressurized fluidized-bed hydroretorting of Eastern oil shales -- Sulfur control

    SciTech Connect (OSTI)

    Roberts, M.J.; Abbasian, J.; Akin, C.; Lau, F.S.; Maka, A.; Mensinger, M.C.; Punwani, D.V.; Rue, D.M. ); Gidaspow, D.; Gupta, R.; Wasan, D.T. ); Pfister, R.M.: Krieger, E.J. )

    1992-05-01

    This topical report on Sulfur Control'' presents the results of work conducted by the Institute of Gas Technology (IGT), the Illinois Institute of Technology (IIT), and the Ohio State University (OSU) to develop three novel approaches for desulfurization that have shown good potential with coal and could be cost-effective for oil shales. These are (1) In-Bed Sulfur Capture using different sorbents (IGT), (2) Electrostatic Desulfurization (IIT), and (3) Microbial Desulfurization and Denitrification (OSU and IGT). The objective of the task on In-Bed Sulfur Capture was to determine the effectiveness of different sorbents (that is, limestone, calcined limestone, dolomite, and siderite) for capturing sulfur (as H{sub 2}S) in the reactor during hydroretorting. The objective of the task on Electrostatic Desulfurization was to determine the operating conditions necessary to achieve a high degree of sulfur removal and kerogen recovery in IIT's electrostatic separator. The objectives of the task on Microbial Desulfurization and Denitrification were to (1) isolate microbial cultures and evaluate their ability to desulfurize and denitrify shale, (2) conduct laboratory-scale batch and continuous tests to improve and enhance microbial removal of these components, and (3) determine the effects of processing parameters, such as shale slurry concentration, solids settling characteristics, agitation rate, and pH on the process.

  13. Pressurized fluidized-bed hydroretorting of Eastern oil shales -- Sulfur control. Topical report for Subtask 3.1, In-bed sulfur capture tests; Subtask 3.2, Electrostatic desulfurization; Subtask 3.3, Microbial desulfurization and denitrification

    SciTech Connect (OSTI)

    Roberts, M.J.; Abbasian, J.; Akin, C.; Lau, F.S.; Maka, A.; Mensinger, M.C.; Punwani, D.V.; Rue, D.M.; Gidaspow, D.; Gupta, R.; Wasan, D.T.; Pfister, R.M.: Krieger, E.J.

    1992-05-01

    This topical report on ``Sulfur Control`` presents the results of work conducted by the Institute of Gas Technology (IGT), the Illinois Institute of Technology (IIT), and the Ohio State University (OSU) to develop three novel approaches for desulfurization that have shown good potential with coal and could be cost-effective for oil shales. These are (1) In-Bed Sulfur Capture using different sorbents (IGT), (2) Electrostatic Desulfurization (IIT), and (3) Microbial Desulfurization and Denitrification (OSU and IGT). The objective of the task on In-Bed Sulfur Capture was to determine the effectiveness of different sorbents (that is, limestone, calcined limestone, dolomite, and siderite) for capturing sulfur (as H{sub 2}S) in the reactor during hydroretorting. The objective of the task on Electrostatic Desulfurization was to determine the operating conditions necessary to achieve a high degree of sulfur removal and kerogen recovery in IIT`s electrostatic separator. The objectives of the task on Microbial Desulfurization and Denitrification were to (1) isolate microbial cultures and evaluate their ability to desulfurize and denitrify shale, (2) conduct laboratory-scale batch and continuous tests to improve and enhance microbial removal of these components, and (3) determine the effects of processing parameters, such as shale slurry concentration, solids settling characteristics, agitation rate, and pH on the process.

  14. Reduction of NO sub x and SO sub 2 emissions from coal burning pulse combustors

    SciTech Connect (OSTI)

    Powell, E.A.; Zinn, B.T.; Miller, N.; Chen, F.

    1990-12-01

    In this investigation, a Rijke pulse combustor was constructed, in which unpulverized coal was burned on a rotating bed where the presence of acoustic velocity oscillations resulted in bed fluidization and intensification of the combustion process. The objectives of this investigation were to determine (1) if the nitrogen oxides emissions of the experimental Rijke pulse combustor could be reduced by air staging the combustion process and (2) if the sulfur dioxide emissions of this pulse combustor could be reduced by the addition of sorbent materials such as limestone to the coal bed or to the gas stream above the bed. Air staging experiments were conducted for total dimensionless air fuel ratios ranging from 1.0 to 1.4 and primary dimensionless air/fuel ratios ranging from 0.6 to 0.9. Injection heights ranged from 20 cm to 52 cm above the coal bed. Air staging was effective in reducing the nitrogen oxides emissions of coal burning Rijke type pulse combustors under the proper conditions. Another series of experiments was conducted using sorbent addition to reduce sulfur dioxide emissions. In some of these experiments, pulverized dolomitic limestone was introduced along with the coal through the coal delivery tube just above the bed, while in the remainder of the experiments, the sorbent was dispersed in an air stream and injected at 15 cm or 23 cm above the coal bed. 9 refs., 49 figs., 9 tabs.

  15. LIMB Demonstration Project Extension and Coolside Demonstration. [Final report

    SciTech Connect (OSTI)

    Goots, T.R.; DePero, M.J.; Nolan, P.S.

    1992-11-10

    This report presents results from the limestone Injection Multistage Burner (LIMB) Demonstration Project Extension. LIMB is a furnace sorbent injection technology designed for the reduction of sulfur dioxide (SO{sub 2}) and nitrogen oxides (NO{sub x}) emissions from coal-fired utility boilers. The testing was conducted on the 105 Mwe, coal-fired, Unit 4 boiler at Ohio Edison`s Edgewater Station in Lorain, Ohio. In addition to the LIMB Extension activities, the overall project included demonstration of the Coolside process for S0{sub 2} removal for which a separate report has been issued. The primary purpose of the DOE LIMB Extension testing, was to demonstrate the generic applicability of LIMB technology. The program sought to characterize the S0{sub 2} emissions that result when various calcium-based sorbents are injected into the furnace, while burning coals having sulfur content ranging from 1.6 to 3.8 weight percent. The four sorbents used included calcitic limestone, dolomitic hydrated lime, calcitic hydrated lime, and calcitic hydrated lime with a small amount of added calcium lignosulfonate. The results include those obtained for the various coal/sorbent combinations and the effects of the LIMB process on boiler and plant operations.

  16. LIMB Demonstration Project Extension and Coolside Demonstration

    SciTech Connect (OSTI)

    Goots, T.R.; DePero, M.J.; Nolan, P.S.

    1992-11-10

    This report presents results from the limestone Injection Multistage Burner (LIMB) Demonstration Project Extension. LIMB is a furnace sorbent injection technology designed for the reduction of sulfur dioxide (SO[sub 2]) and nitrogen oxides (NO[sub x]) emissions from coal-fired utility boilers. The testing was conducted on the 105 Mwe, coal-fired, Unit 4 boiler at Ohio Edison's Edgewater Station in Lorain, Ohio. In addition to the LIMB Extension activities, the overall project included demonstration of the Coolside process for S0[sub 2] removal for which a separate report has been issued. The primary purpose of the DOE LIMB Extension testing, was to demonstrate the generic applicability of LIMB technology. The program sought to characterize the S0[sub 2] emissions that result when various calcium-based sorbents are injected into the furnace, while burning coals having sulfur content ranging from 1.6 to 3.8 weight percent. The four sorbents used included calcitic limestone, dolomitic hydrated lime, calcitic hydrated lime, and calcitic hydrated lime with a small amount of added calcium lignosulfonate. The results include those obtained for the various coal/sorbent combinations and the effects of the LIMB process on boiler and plant operations.

  17. ENERGY UTILIZATION AND ENVIRONMENTAL CONTROL TECHNOLOGIES IN THE COAL-ELECTRIC CYCLE

    E-Print Network [OSTI]

    Ferrell, G.C.

    2010-01-01

    1969. "Scrubber Survey: a Lime/Limestone Trend," ElectricalMills/Kwh Process Limestone Lime Magnesia Cat-Ox Sodium Tonsto Unsaturated Operation of Lime and Limestone Scrubbers,"

  18. RPSEA Final Report

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

    the upper carbonate sequence (Arbuckle) was found to form a few streaks of dolomite-sand with variable thickness of crystalline-dolomite. The lower Precambrian sequence of...

  19. Effects of diesel fuel combustion-modifier additives on In-cylinder soot formation in a heavy-duty Dl diesel engine.

    SciTech Connect (OSTI)

    Musculus, Mark P. (Sandia National Laboratories, Livermore, CA); Dietz, Jeff (The Lubrizol Corp.)

    2005-07-01

    Based on a phenomenological model of diesel combustion and pollutant-formation processes, a number of fuel additives that could potentially reduce in-cylinder soot formation by altering combustion chemistry have been identified. These fuel additives, or ''combustion modifiers'', included ethanol and ethylene glycol dimethyl ether, polyethylene glycol dinitrate (a cetane improver), succinimide (a dispersant), as well as nitromethane and another nitro-compound mixture. To better understand the chemical and physical mechanisms by which these combustion modifiers may affect soot formation in diesel engines, in-cylinder soot and diffusion flame lift-off were measured, using an optically-accessible, heavy-duty, direct-injection diesel engine. A line-of-sight laser extinction diagnostic was employed to measure the relative soot concentration within the diesel jets (''jetsoot'') as well as the rates of deposition of soot on the piston bowl-rim (''wall-soot''). An OH chemiluminescence imaging technique was utilized to measure the lift-off lengths of the diesel diffusion flames so that fresh oxygen entrainment rates could be compared among the fuels. Measurements were obtained at two operating conditions, using blends of a base commercial diesel fuel with various combinations of the fuel additives. The ethanol additive, at 10% by mass, reduced jet-soot by up to 15%, and reduced wall-soot by 30-40%. The other fuel additives also affected in-cylinder soot, but unlike the ethanol blends, changes in in-cylinder soot could be attributed solely to differences in the ignition delay. No statistically-significant differences in the diesel flame lift-off lengths were observed among any of the fuel additive formulations at the operating conditions examined in this study. Accordingly, the observed differences in in-cylinder soot among the fuel formulations cannot be attributed to differences in fresh oxygen entrainment upstream of the soot-formation zones after ignition.

  20. COMMERCIAL FISHERIES OF 'rHF. HAWAllAN ISLANDS, 751 prepare them usually by dl'ying. Most of this work is done on Hawaii, the district

    E-Print Network [OSTI]

    of this work is done on Hawaii, the district of Kona being especially noted for its dried fish. The nehu, while on Hawaii, The general method of preparing the Ittl'g9r species is as follows: The fish are split open from. A considerable quantity of amaama was dried in Kauai during IHOl, but it was all condemned when it reached

  1. 3DlInkjet-printed Origami Antennas for Multi-direction RF Harvesting John Kimionis*, Apostolos Georgiadist, Michael Isakov+, Hang J. Qi+, and Manos M. Tentzeris*

    E-Print Network [OSTI]

    Tentzeris, Manos

    @ece.gatech.edu tCentre Tecnologic de Telecommunicacions de Catalunya, Castelldefels 08860, Spain Email: ageorgiadis

  2. BULLETIN OF TITE UNI+ED STATES FISH COMMISSION. 427 When winter came I took :dl of them (soiiio 18)arid put8them in a

    E-Print Network [OSTI]

    the treaty to which I have referred was iiiade, and also before 1110 Hdifkix Coinmis- ,$oil, were based seiue-boats. Together with many others of the maclrerel fleet that sailed about the same time, he rent

  3. All Stem Cell Publications by CIRM-CSULB Interns Anderson AJ, Haus DL, Hooshmand MJ, Perez H, Sontag CJ, Cummings BJ. 2011. Achieving

    E-Print Network [OSTI]

    Manley, Steven L.

    , Wang X, Xu F, Gu Y, Xu X, Tang J, Zhou H, Zhang X, Gan X, Van Ness G, Ma X, Fu X, Meng Z, Zhang W, Wang YD, Van Ness C, Yu D, Xu R, Van Ness C, Gan Y, Zhou H, Tang J, Lou G, Wang Y, Wu J, Yen Y, #12

  4. Nanoencapsulation of hydrophobic phytochemicals using poly(dl-lactide-co-glycolide) (PLGA) for antioxidant and antimicrobial delivery applications: Guabiroba fruit (Campomanesia xanthocarpa O. Berg) study 

    E-Print Network [OSTI]

    Pereira, Marina; Hill, Laura; Zambiazi, Rui; Mertens-Talcott, Susanne; Talcott, Stephen; Gomes, Carmen

    2015-01-01

    and ABTS radicals' sequestration are shown on Table 3. Unloaded PLGA nanoparticles showed no anti- oxidant effect (data not shown) for both methods. Generally, high scavenging activity is indicated by a small IC50 value (Brand- Williams et al., 1995..., and other normal body functions (McClements, Decker, & Park, 2009; Tan & Nakajima, 2005; Wildman & Kelley, 2007). Specifically, the potential for any physiological venting oxidative criptional activity, 2006). Despite of plication and their r pharmaceutical...

  5. Earth and Planetary ScienceI'etters, lDl (7990)272-280 Elsevier Science Publishers B.V., Amsterdam

    E-Print Network [OSTI]

    Cogne, Jean-Pascal

    RennesI, F-35042 Rennes-Cedex,France b Laboratoire de Tectonique, Uniuersité de Paris VII, F-75230 Paris within two basins opened during the extension, the Lodève and the St-Affrique basins. The paleomagnetic study of six sites (three in each basin) using thermal demagrretization procedures, reveals the presence

  6. Competing Models for the Timing of Cryogenian Glaciation: Evidence From the Kingston Peak Formation, Southeastern California

    E-Print Network [OSTI]

    Mrofka, David Douglas

    2010-01-01

    versus vadose meteoric diagenesis of limestones: evidence6 Figs. —, 1986, Limestone diagenesis - some geochemicalwith applications to carbonate diagenesis: Geochimica et

  7. Development of a Geologic Exploration Model foe the Permo-Pennsylvanian Petroleum System in South-Central Montana

    SciTech Connect (OSTI)

    David A. Lopez

    2007-06-30

    Eolian sands are the main Pennsylvanian Tensleep Sandstone reservoir rocks, and were deposited in a near-shore environment interbedded with near-shore marine and sabkha calcareous and dolomitic rocks. Within the Tensleep, numerous cycles are characterized by basal marine or sabkha calcareous sandstone or dolomitic sandstone overlain by porous and permeable eolian sandstone, which in turn is capped by marine sandstone. The cycles represent the interplay of near-shore marine, sabkha, and eolian environments. On the west side of the project area, both the lower and upper Tensleep are present and the total thickness reaches a maximum of about 240 ft. The lower Tensleep is 100 to 120 ft thick and consists of a sequence of repeating cycles of limey shallow marine sandstone, sandy limestone, and sandy dolomite. The upper Tensleep is generally characterized by cycles of sandy limestone or dolomite, overlain by light-colored, eolian dune sandstone capped by marine limey sandstone. In the central and eastern parts of the project area, only the lower Tensleep is present, but here eolian sandstones are in cycles much like those in the west in the upper Tensleep. The lower Tensleep is quite variable in thickness, ranging from about 25 ft to over 200 ft. Oil accumulations in the Tensleep are best described as structurally modified paleostratigraphic accumulations. At Frannie Field, the irregular oil column can be explained by a post-Tensleep channel scour on the west flank of the anticline. On the Powder River Basin side of the project area, the Soap Creek and Lodge Grass Fields produce from the Permo-Pennsylvanian system. In these two fields, erosional remnants of eolian sandstone control the production, similar to the situation at Frannie Field. At Soap Creek the trap is enhanced by structural closure. In the Lodge Grass area, Tensleep oil is trapped in preserved dunes in the footwall of a Laramide reverse fault. Oil generation and migration was early. Two hypotheses have been presented: migration occurred (1) before mid-Jurassic erosion produced a major regional unconformity or (2) about 82 million years ago. Migration pre-Laramide occurred because oil in both the Bighorn Basin and the Powder River Basin are part of the same petroleum system. Geochemical analyses of oils from producing fields across the region show the oils are all similar and have the same source and generation history. No Phosphoria source rocks exist in the project area of south-central Montana, requiring that oil migrated from distant source areas, probably in central and southwestern Wyoming. Oil shows and production in the Tensleep are absent in the northern part of the project area. This appears to be controlled by the merging of the top of the Tensleep Sandstone and the Jurassic unconformity (top of the Triassic Chugwater Formation). There should be potential for the discovery of oil in Tensleep stratigraphic traps or combination traps everywhere south of the Jurassic-Pennsylvanian Isopach zero contour except where the Tensleep has been exposed by uplift and erosion. Known Tensleep fields in south-central Montana are generally small in area, which agrees with outcrop studies that show eolian dune sequences are generally quite small in lateral extent, on the order of 10 to 40 acres. Although existing fields are small in area, they are very productive; individual wells will probably make 300,000 to 500,000 barrels of oil. In the project area, hydrodynamic considerations are important. All the existing Tensleep fields have active water drives. In many cases, the reservoir pressure today is as it was when initially discovered. In areas of high structural complexity, such as the Lodge Grass-Crow Agency fault and the Lake Basin fault zone, significant structural closure may be necessary to trap oil because of the strong hydrodynamic influence exerted by the underlying Madison Formation aquifer.

  8. Wettability and Oil Recovery by Imbibition and Viscous Displacement from Fractured and Heterogeneous Carbonates

    SciTech Connect (OSTI)

    Norman R. Morrow; Jill Buckley

    2006-04-01

    About one-half of U.S. oil reserves are held in carbonate formations. The remaining oil in carbonate reservoirs is regarded as the major domestic target for improved oil recovery. Carbonate reservoirs are often fractured and have great complexity even at the core scale. Formation evaluation and prediction is often subject to great uncertainty. This study addresses quantification of crude oil/brine/rock interactions and the impact of reservoir heterogeneity on oil recovery by spontaneous imbibition and viscous displacement from pore to field scale. Wettability-alteration characteristics of crude oils were measured at calcite and dolomite surfaces and related to the properties of the crude oils through asphaltene content, acid and base numbers, and refractive index. Oil recovery was investigated for a selection of limestones and dolomites that cover over three orders of magnitude in permeability and a factor of four variation in porosity. Wettability control was achieved by adsorption from crude oils obtained from producing carbonate reservoirs. The induced wettability states were compared with those measured for reservoir cores. The prepared cores were used to investigate oil recovery by spontaneous imbibition and viscous displacement. The results of imbibition tests were used in wettability characterization and to develop mass transfer functions for application in reservoir simulation of fractured carbonates. Studies of viscous displacement in carbonates focused on the unexpected but repeatedly observed sensitivity of oil recovery to injection rate. The main variables were pore structure, mobility ratio, and wettability. The potential for improved oil recovery from rate-sensitive carbonate reservoirs by increased injection pressure, increased injectivity, decreased well spacing or reduction of interfacial tension was evaluated.

  9. Chemical characteristics of waters in Karst Formations at the Oak Ridge Y-12 Plant

    SciTech Connect (OSTI)

    Shevenell, L.A. [Univ. of Nevada, Reno, NV (United States). Nevada Bureau of Mines and Geology

    1994-11-01

    Several waste disposal sites are located adjacent to or on a karst aquifer composed of the Cambrian Maynardville Limestone (Cmn) and the Cambrian Copper Ridge Dolomite (Ccr) at the U.S. Department of Energy Oak Ridge Y-12 Plant in Oak Ridge, TN. Highly variable chemical characteristics (i.e., hardness) can indicate that the portion of the aquifer tapped by a particular well is subject to a significant quick-flow component where recharge to the system is rapid and water levels and water quality change rapidly in response to precipitation events. Water zones in wells at the Y-12 Plant that exhibit quick-flow behavior (i.e., high hydraulic conductivity) are identified based on their geochemical characteristics and variability in geochemical parameters, and observations made during drilling of the wells. The chemical data used in this study consist of between one and 20 chemical analyses for each of 102 wells and multipart monitoring zones. Of these 102 water zones, 10 were consistently undersaturated with respect to calcite suggesting active dissolution. Repeat sampling of water zones shows that both supersaturation and undersaturation with respect to dolomite occurs in 46 water zones. Twelve of the zones had partial pressure of CO{sub 2} near atmospheric values suggesting limited interaction between recharge waters and the gases and solids in the vadose zone and aquifer, and hence, relatively short residence times. The preliminary data suggest that the Cmn is composed of a complicated network of interconnected, perhaps anastomosing, cavities. The degree of interconnection between the identified cavities is yet to be determined, although it is expected that there is a significant vertical and lateral interconnection between the cavities located at shallow depths in the Cnm throughout Bear Creek Valley and the Y-12 Plant area.

  10. Lithological influence of aggregate in the alkali-carbonate reaction

    SciTech Connect (OSTI)

    Lopez-Buendia, A.M. . E-mail: angel.lopez@aidico.es; Climent, V. . E-mail: vcliment@grupogla.com; Verdu, P.

    2006-08-15

    The reactivity of carbonate rock with the alkali content of cement, commonly called alkali-carbonate reaction (ACR), has been investigated. Alkali-silica reaction (ASR) can also contribute in the alkali-aggregate reaction (AAR) in carbonate rock, mainly due to micro- and crypto-crystalline quartz or clay content in carbonate aggregate. Both ACR and ASR can occur in the same system, as has been also evidenced on this paper. Carbonate aggregate samples were selected using lithological reactivity criteria, taking into account the presence of dedolomitization, partial dolomitization, micro- and crypto-crystalline quartz. Selected rocks include calcitic dolostone with chert (CDX), calcitic dolostone with dedolomitization (CDD), limestone with chert (LX), marly calcitic dolostone with partial dolomitization (CD), high-porosity ferric dolostone with clays (FD). To evaluate the reactivity, aggregates were studied using expansion tests following RILEM AAR-2, AAR-5, a modification using LiOH AAR-5Li was also tested. A complementary study was done using petrographic monitoring with polarised light microscopy on aggregates immersed in NaOH and LiOH solutions after different ages. SEM-EDAX has been used to identify the presence of brucite as a product of dedolomitization. An ACR reaction showed shrinkage of the mortar bars in alkaline solutions explained by induced dedolomitization, while an ASR process typically displayed expansion. Neither shrinkage nor expansion was observed when mortar bars were immersed in solutions of lithium hydroxide. Carbonate aggregate classification with AAR pathology risk has been elaborated based on mechanical behaviours by expansion and shrinkage. It is proposed to be used as a petrographic method for AAR diagnosis to complement the RILEM AAR1 specifically for carbonate aggregate. Aggregate materials can be classified as I (non-reactive), II (potentially reactive), and III (probably reactive), considering induced dedolomitization ACR (dedolomitization degree) and ASR.

  11. Stratigraphy and sedimentation of the Unayzah reservoir, central Saudi Arabia

    SciTech Connect (OSTI)

    Senalp, M.; Abdulaziz, A. [Saudi Aramco, Dhahran (Saudi Arabia)

    1995-08-01

    Significant reserves of Arabian super light oil, condensate, and associated gas occur in the various genetically different sandstone bodies of the upper Permian Unayzah and Khuff Formations in Central Saudi Arabia. The Unayzah Formation which rests unconformably on the older formations is composed of red colored, poorly sorted conglomerate, sandstone, siltstone, mudstone, caliche and nodular anhydrite. Facies changes occur due to the presence of various subenvironments and possible faulting and structural growth in the basin during deposition. However, the entire Unayzah Formation shows an overall fining and thinning-upward sequence. It was deposited as coalescing alluvial fans dominated by braided streams which graded into meandering stream and playa lakes under and to semi-arid conditions. Eolian processes were also inferred. A marked unconformity which is indicated by the occurrence of thick caliche and soil horizons separate the Unayzah and the overlying Khuff Formation. The Khuff Formation consists primarily of marine shale, marl, and fine- to very coarse-grained sandstones in the lower parts; shale, limestone, dolomite, and amhydrite in the upper parts. The sandstones were deposited as incised channel fills and their associated low stand deltaic sediments as a result of fluctuating sea level during the deposition of the Khuff Formation. The base of the incised channels represent a sequence boundary. Red colored and rooted paleosols were formed on the underlying marine sediments. During relative sea level rise, good quality reservoir sands were deposited by aggradation within the incised channels. Sand deposition within the channels terminated at the same time, and the area was covered by shallow marine limestones, shales and marls during maximum sea level highstand. Although the Unayzah reservoir occurs in both the Unayzah and the Khuff Formations because of their different geometry, continuity, and reservoir quality, they have been studied separately.

  12. Mesozoic stratigraphy and paleoenvironments of the Exxon 975-1 well, Georges Bank Basin, U. S. North Atlantic outer continental shelf

    SciTech Connect (OSTI)

    Poppe, L.J.; Poag, C.W. . Quissett Labs.)

    1993-03-01

    The Exxon 975--1 well, located in the southeastern part of the Georges Bank Basin, was drilled to a total depth of 4,452 m relative to the Kelly Bushing. The oldest sediments penetrated by the well are Middle Jurassic (Bajocian-Early Bathonian), but unambiguous seismic correlations with the COST G--1 and G--2 wells show that about 6,860 m of Mesozoic and Cenozoic sedimentary rocks rest on the Paleozoic basement at the 975--1 wellsite. The Jurassic/Cretaceous boundary in the well is placed at 1,673 m; the Cretaceous/Tertiary boundary occurs at 384 m. Limestone is predominant below 3,966 m (Iroquois Formation), and at the intervals 3,810--3,246 m and 1,897--1,654 m (lower and upper tongues of the Abenaki Formation). Siliciclastics of the Mohican, undivided Mic Mac-Mohawk, Missisauga, Logan Canyon, and Dawson Canyon Formations dominate the remainder of the Mesozoic section. The Exxon 975--1 well penetrated updip, more terrestrial lithofacies than the COST G--2, Conoco 145--1, and Mobil 312--1 wells. Salt, anhydrite, dolomite, and the micritic textures of the carbonates in the Iroquois Formation of the Exxon 975--1 well suggest hypersaline restricted marine and supratidal depositional environments. The predominantly nonmarine deltaic siliciclastics of the Mohican, Misaine Shale, and Mic Mac-Mohawk units are thicker in the Exxon 975--1 well, whereas marine carbonates of the Scatarie and Bacarro Limestones are usually thinner than at the downdip (seaward) wellsites. Similarly, the Early Cretaceous Missisauga and Logan Canyon Formations represent lower delta plain (alluvial and swamp) and delta front (beach, bar, and lagoon) facies at the Exxon 975--1 wellsite, whereas correlative downdip facies represent shallow marine to delta front deposition.

  13. Carnets de Gologie / Notebooks on Geology -Article 2007/01 (CG2007_A01) Environmental changes during marl-limestone formation

    E-Print Network [OSTI]

    Boyer, Edmond

    paleoenvironmental fluctuations linked to MILANKOVITCH-scale climate variations. However, the impact of diagenesis. Although diagenesis has not altered these rhythmites no strong evidence has been found for linking

  14. Inorganic hazardous air pollutants before and after a limestone flue gas desulfurization system as a function of <10 micrometer particle sizes and unit load

    SciTech Connect (OSTI)

    Maxwell, D.P.; Williams, W.A.; Flora, H.B. II [Radian Corp., Austin, TX (United States)

    1995-12-31

    Radian Corporation collected size-fractionated particulate samples from stack gas at a unit burning high sulfur coal with a venturi scrubber FGD system. Independent sample fractions were collected under high-load and low-load operating conditions and subjected to various techniques designed to measure the total composition and surface-extractable concentrations of selected trace elements. The relationships between unit load, particle-size distribution, total composition, and surface-extractable inorganic species are reported and compared to show the availability of trace elements relevant to potential health risks from flue gas particulate emissions.

  15. Moduli dispersion and attenuation in limestones in the laboratory L. Adam and M. Batzle, Center for Rock Abuse, Colorado School of Mines

    E-Print Network [OSTI]

    pressures. In the laboratory we are able to measure rock properties such as the bulk and shear modulus correlation be- tween bulk modulus dispersion and permeability. We also measure dif- ferent modes of attenuation and find that the attenuation in our fully- saturated samples is mostly due to bulk

  16. The effect of metals and soil pH on the growth of Rhododendron and other alpine plants in limestone soil 

    E-Print Network [OSTI]

    Kaisheva, Maria V

    2008-01-01

    Rhododendrons are economically important plants in horticulture, and many species are threatened in the wild by habitat degradation. It is therefore doubly important that their nutritional needs should be understood.

  17. A study of the effects of limestone rock asphalt screenings on the structural properties of hot-mix asphaltic concrete made with siliceous materials 

    E-Print Network [OSTI]

    Albritton, Oscar Willard

    1958-01-01

    . Z Total yo a 28 9o Bin No. 3 Total 9o oo Igloo Bin No. 4 Total 9o ot Combined Analysis fo 1. 6 30. 8 58. 2 4 ? 10 38 Z0. 5 19 5. 3 25. 8 10 ? 40 43 12. I 14. 3 40 ? 80 36 10. 0 11. 7 21. 7 80 ? 200 0. 6 4. 3 4, 9 Pass 200 0, 9 0. 9.... 6 40 ? 80 36 2. 9 65 11. 7 19 3. 8 18 4 80 ? ZOO Pass ZOO 0. 2 24 0. 9 l. 8 l. 2 6. 3 2. 1 Total 100@a 54. 0/o 100'fo 8, 0'fo 1009'o 18. 0'fo 100/a 20. Ofo 100fo Bin No, I - Allen Farm Pea Gravel . Bin No. 2 - Gifford-Hill Concrete Sand...

  18. Experimental evidence of electrification processes at the 2009 LAquila earthquake mainshock

    E-Print Network [OSTI]

    Nenovski, P

    2015-01-01

    Two types of coseismic magnetic field events are simultaneously observed: transient offset events and magnetic field signal that occurred at the destructive, Mw6.1 LAquila earthquake (EQ) mainshock. The offset event, conventionally interpreted as a signature of piezomagnetic effects, however could not be ascribed as such. The reason is that the presently known geology of the LAquila basin consists mainly of carbonates, dolomites and limestone, thus it does not suggest an appearance of piezomagnetic related effects under EQ fracture/slip events. The second type of coseismic event, the transient magnetic signal starts simultaneously with the offset event and reaches amplitude of 0.8 nT in the total magnetic field. The signal is local one, in the sense that its form differs from the signals of ionospheric/magnetospheric origin confirmed (indirectly) by additional magnetic field data in Italy and Central Europe. The reliability of the observed local signal is examined also: it follows from the fact that the trans...

  19. Indirect fracture delineation in a carbonate reservoir: The Upper Jurassic Hanifa of Abqaiq field, Saudi Arabia

    SciTech Connect (OSTI)

    Bailey, D.L. (Saudi Aramco, Dhahran (Saudi Arabia))

    1991-03-01

    Abqaiq field is a northeast-trending anticline approximately 60 km long and 12 km wide and contains several reservoirs. The Hanifa Reservoir is approximately 100 m thick and consists of fine-grained, muddy limestone with subordinate dolomite and anhydrite. Since discovery of the Hanifa oil pool in 1947, pressure fluctuations have indicated communication with the overlying Arab-D Reservoir. Welltest permeability measurements are approximately 40 times higher than core permeability measurements of the Hanifa. This divergence of Hanifa permeability measurements combined with the indicated Arab-D communication suggests the presence of a natural fracture network. Direct observations of Hanifa cores reveal common, sub-vertical fractures with average apertures <200 microns. With limited core coverage and no oriented cores, a new technique was needed to delineate the areas affected by fractures. A technique combining indirect fracture indicators was devised for Abqaiq field and can be applied to other, similar fields. The actual flow system of the Abqaiq Hanifa is a complex interaction between matrix porosity/permeability and fracture permeability or enhanced permeability. Future development plans allow for low matrix permeability access to much of the Hanifa storage space and high fracture permeability both within the Hanifa and connecting to the Arab-D Reservoir.

  20. Sulfur removal in advanced two stage pressurized fluidized bed combustion. Technical report, September 1--November 30, 1994

    SciTech Connect (OSTI)

    Abbasian, J.; Hill, A.; Wangerow, J.R. [Inst. of Gas Technology, Chicago, IL (United States)

    1994-12-31

    The objective of this study is to obtain data on the rates and the extent of sulfation reactions involving partially sulfided calcium-based sorbents, and oxygen as well as sulfur dioxide, at operating conditions closely simulating those prevailing in the second stage (combustor) of Advanced Two-Stage Pressurized Fluidized-Bed Combustors (PFBC). In these systems the CO{sub 2} partial pressure generally exceeds the equilibrium value for calcium carbonate decomposition. Therefore, calcium sulfate is produced through the reactions between SO{sub 2} and calcium carbonate as well as the reaction between calcium sulfide and oxygen. To achieve this objective, the rates of reaction involving SO{sub 2} and oxygen (gaseous reactant); and calcium sulfide and calcium carbonate (solid reactants), will be determined by conducting tests in a pressurized thermogravimetric analyzer (HPTGA) unit. The effects of sorbent type, sorbent particle size, reactor temperature and pressure; and O{sub 2} as well as SO{sub 2} partial pressures on the sulfation reactions rate will be determined. During this quarter, samples of the selected limestone and dolomite were sulfided in the fluidized-bed reactor. These tests were conducted in both calcining and non-calcining operating conditions to produce partially-sulfided sorbents containing calcium oxide and calcium carbonate, respectively. These samples which represent the carbonizer discharge material, will be used as the feed material in the sulfation tests to be conducted in the HPTGA unit during the next quarter.

  1. TIDD PFBC Demonstration Project

    SciTech Connect (OSTI)

    Not Available

    1994-03-01

    In fluidized bed combustion, coal and sorbent (dolomite or limestone) are fed into a boiler in which air, entering from the bottom, maintains the bed material in a highly turbulent suspended state called fluidization. This turbulence creates good contact between the air and fuel, allowing for high combustion efficiency and excellent adsorption of sulfur dioxide (SO{sub 2}) during the combustion process. In PFBC applications, pressurized air is supplied to the combustor. Pressurizing the air concentrates a larger quantity of oxygen per unit volume. This results in a lower velocity of air through the fuel bed. The lower velocity reduces the total height required for the bed and freeboard above the bed. Also, a smaller plan area is required for the bed area as compared to an atmospheric fluidized bed. This has the advantage of requiring a much smaller pressure vessel to contain the boiler enclosure. The mean bed temperature of a pressurized fluidized bed combustor is typically maintained in the range 1540 to 1580 F. This is well below the ash fusion temperature of coal, yet above the ignition temperature of the coal. Advantages of the low bed temperature are no slag formation and a reduction of NO{sub x} emissions to less than half that of a conventional boiler. The Tidd Plant is a combined cycle pressurized fluidized bed combustion system with a topping gas cycle and a bottoming steam cycle.

  2. DILUTE SURFACTANT METHODS FOR CARBONATE FORMATIONS

    SciTech Connect (OSTI)

    Kishore K. Mohanty

    2004-01-01

    There are many carbonate reservoirs in US (and the world) with light oil and fracture pressure below its minimum miscibility pressure (or reservoir may be naturally fractured). Many carbonate reservoirs are naturally fractured. Waterflooding is effective in fractured reservoirs, if the formation is water-wet. Many fractured carbonate reservoirs, however, are mixed-wet and recoveries with conventional methods are low (less than 10%). Thermal and miscible tertiary recovery techniques are not effective in these reservoirs. Surfactant flooding (or huff-n-puff) is the only hope, yet it was developed for sandstone reservoirs in the past. The goal of this research is to evaluate dilute (hence relatively inexpensive) surfactant methods for carbonate formations and identify conditions under which they can be effective. Anionic surfactants (SS-6656, Alfoterra 35, 38, 63,65,68) have been identified which can change the wettability of the calcite surface to intermediate/water-wet condition as well or better than the cationic surfactant DTAB with a West Texas crude oil in the presence of Na{sub 2}CO{sub 3}. All the carbonate surfaces (Lithographic Limestone, Marble, Dolomite and Calcite) show similar behavior with respect to wettability alteration with surfactant 4-22. Anionic surfactants (5-166, Alfoterra-33 and Alfoterra-38 and Alfoterra-68), which lower the interfacial tension with a West Texas crude oil to very low values (<10{sup -2} nM/m), have also been identified. Plans for the next quarter include conducting wettability, mobilization, and imbibition studies.

  3. Experimental Validation of Passive Safety System Models: Application to Design and Optimization of Fluoride-Salt-Cooled, High-Temperature Reactors

    E-Print Network [OSTI]

    Zweibaum, Nicolas

    2015-01-01

    Portland Cements Containing Fly Ash and Limestone Powder,”replace OPC with high-volume fly ash and limestone powder inof OPC with high-volume fly ash and limestone powder. Their

  4. Seasonal variation of diatoms and dinoflagellates in Monterey Bay, CA determined by Chemtax alanysis of HPLC pigment data

    E-Print Network [OSTI]

    Keating, Kelene

    2013-01-01

    and Benguela), Vol. 1. Garrison, D.L. (1976). ContributionFishery Bulletin 74,183-194. Garrison, D.L. (1979). MontereyResearch 1, 241–265. Garrison, D.L. (1981). Monterey Bay

  5. China Energy and Emissions Paths to 2030

    E-Print Network [OSTI]

    Fridley, David

    2012-01-01

    Blended cement (Additives: fly ash, pozzolans, limestone or/Blended cement (Additives: fly ash, pozzolans, limestone or/one or more additives (fly ash, pozzolans, blast furnace

  6. Geological Problems in Radioactive Waste Isolation: Second Worldwide Review

    E-Print Network [OSTI]

    2010-01-01

    of limestones and sandstones. Some of them are water-n Marls Aleurolite Clayey marls Sandstones Clayey limestonesCretaceous and Jurassic sandstone, shale and sandstone; 3 -

  7. Publications 1997-1999 Department of Soil Sciences

    E-Print Network [OSTI]

    Research 12, 321-327. Andersson, S., Nilsson, S. I. & Valeur, I. 1999. Influence of dolomitic lime on DOC

  8. PROOF COPY [2006-0114] 050606GPY Gassmann fluid substitution and shear modulus variability in carbonates

    E-Print Network [OSTI]

    .8 MHz to estimate the validity of Gassmann's equations for lime- stones and dolomites Wang et al., 1991

  9. Natural analogue synthesis report, TDR-NBS-GS-000027 rev00 icn 02

    E-Print Network [OSTI]

    2002-01-01

    Synthesis Report Table 10.3-6c. Mineral Saturation Indices Mineral Dolomite Hematite Quartz Chalcedony Goethite

  10. Measurements of the semileptonic decays B-bar-->Dl nu -bar and B-bar-->D*l nu -bar using a global fit to DXl nu -bar final states

    E-Print Network [OSTI]

    Fisher, Peter H.

    Semileptonic B? decays to DX??? (?=e or ?) are selected by reconstructing D0? and D+? combinations from a sample of 230×106 ?(4S)-->BB? decays recorded with the BABAR detector at the PEP-II e+e- collider at SLAC. A ...

  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.

    ., 2008). A ship-based survey also conducted in 2005 gave a smaller abundance estimate (1,980, 95% CI 913 and too imprecise to be used for generating advice on sustainable takes (IWC, 2005). For continued advice on the sustainability of the harvest in West Greenland it is important to determine if the abundance of fin whales

  12. 174. THE EFFECTS OF RESIDENCE TIME ON THE RETENTION OF ARSENATE BY GOETHITE. S.E. O'Reilly and D.L. Sparks, Department of Plant and Soil Sciences, University

    E-Print Network [OSTI]

    Sparks, Donald L.

    174. THE EFFECTS OF RESIDENCE TIME ON THE RETENTION OF ARSENATE BY GOETHITE. S.E. O'Reilly and D on goethite. Batch sorption and desorption studies were conducted at pH 6 for periods up to 2 months. Arsenate sorption increased slowly with time. As residence time between arsenate and goethite increased

  13. Measurement of W and Z boson production cross sections B. Abbott, 40 M. Abolins, 37 V. Abramov, 15 B.S. Acharya, 8 I. Adam, 39 D.L. Adams, 49

    E-Print Network [OSTI]

    . Gutierrez, 23 P. Gutierrez, 45 N.J. Hadley, 33 H. Haggerty, 23 S. Hagopian, 21 V. Hagopian, 21 K.S. Hahn, 41

  14. MAGNETIC CONFINEMENT OF RADIOTHERAPY BEAM-DOSE F.D. Becchetti, D.W. Litzenberg, J.M. Moran, T.W. O'Donnell, D.A. Roberts, B.A. Fraass, D.L.

    E-Print Network [OSTI]

    Becchetti, Fred

    MAGNETIC CONFINEMENT OF RADIOTHERAPY BEAM-DOSE PROFILES F.D. Becchetti, D.W. Litzenberg, J.M. Moran the magnetic confinement of HE electron and photon beam-dose profiles for typical radiotherapy beams. The HE magnetic field can provide a substantial improvement and control of the dose profile of clinical electron

  15. Arsenic Occurrence, Mobility, and Retardation in Sandstone and

    E-Print Network [OSTI]

    Sahai, Nita

    Arsenic Occurrence, Mobility, and Retardation in Sandstone and Dolomite Formations of the Fox River were conducted on samples from the Sinnipee Group dolomite and St. Peter sandstone in eastern Wisconsin in the dolomite and sandstone. The released As sub- sequently sorbs on the ferric oxyhydroxides formed

  16. Dilute Acid Hydrolysis of Oligomers in Hydrothermal Pretreatment Hydrolyzate into Monomers with High Yields

    E-Print Network [OSTI]

    Tsai, Yueh-Du

    2012-01-01

    Klass DL. 1998. Biomass for renewable energy, fuels, andNational Renewable Energy Laboratory.2003, Biomass feedstockKlass DL. 1998. Biomass for Renewable Energy, Fuels and

  17. Asparagus and rhubarb are perennial vegetables that produce a new crop year after year for 10 to 15 years or longer if the plants are given adequate care. Because these crops remain in the same

    E-Print Network [OSTI]

    New Hampshire, University of

    of limestone or wood ashes as recommended by the test lab. Fertilizer requirements are also determined

  18. Constraints on Neoproterozoic paleogeography and Paleozoic orogenesis from paleomagnetic records of the Bitter Springs Formation, Amadeus Basin, central Australia

    E-Print Network [OSTI]

    Swanson-Hysell, N. L; Maloof, A. C; Kirschvink, J. L; Evans, D. A. D; Halverson, G. P; Hurtgen, M. T

    2012-01-01

    carbonate rocks of the Paris Basin, France: implications forand Kodama, 2009) Paris Basin Limestones (Belkaaloul and

  19. Marine carbonate embayment system in an Eolian dune terrain, Permian Upper Minnelusa Formation, Rozet Area, Powder River Basin, Wyoming

    SciTech Connect (OSTI)

    Achauer, C.W.

    1987-05-01

    The eolian origin for Minnelusa sandstones has been stressed in numerous published articles. However, the dolomites that are interbedded with the eolian sandstones have received little attention. Isopach mapping of one of the dolomite units (Dolomite I) reflects a marine embayment system whose individual embayments range from 1/2 to 1 mi in width and trend primarily in a northwest direction. Consistently the embayment dolomites pinch out against the flanks of reworked, low relief, broad, eolian dune ridges. So far, 108 mi/sup 2/ of the Dolomite I marine embayment system have been mapped, but the overall extent of the system is undoubtedly much greater. Dolomite I is rarely cored, but cores from stratigraphically higher embayment dolomites in the upper Minnelusa show that these dolomites display the following, shoaling-upward sequence: (1) subtidal, sparingly fossiliferous dolomite; (2) intertidal, algal-laminated or brecciated or mud-cracked dolomite; and (3) very thin, supratidal, nodular anhydrite. The embayments, therefore, became the sites of marine sabkhas located between eolian dunes. Two main conclusions emerge from this study: (1) the juxtaposition of eolian sandstones and marine dolomites in a tectonically stable area suggests that eustatic sea level changes and a very arid climate were responsible for the marked environmental and lithologic changes observed in the upper Minnelusa, and (2) arid, coastal, evaporitic sabkhas bordered by eolian dunes are known from a number of modern and ancient cases, but marine carbonate embayments and associated evaporitic sabkhas that penetrate deeply into eolian sandstone terrains are rare.

  20. The Digital Library Shell Yael Dubinsky

    E-Print Network [OSTI]

    Yehudai, Amiram

    repositories DSpace Fedora #12;8 Agenda Digital Libraries The Digital Library (DL) Shell The project

  1. Establishment and persistence of photoperiodic memory in hamsters

    E-Print Network [OSTI]

    Zucker, Irving

    and autumnal equinoxes); thus, a given intermediate DL can be a harbinger of radically different environmental

  2. ICFA Sardinia July 1-6, 2002 Z. Huang (zrh@aps.anl.gov) CSR Microbunching

    E-Print Network [OSTI]

    compression Berlin CSR Benchmark: Compression #12;ICFA Sardinia July 1-6, 2002 Z. Huang (zrh@aps.anl.gov) LCLS Bunch Compressors (BC)LCLS Bunch Compressors (BC) Linac Linac Linac SC wiggler DL1 Injector DL2 BC1 BC2) · LCLS has more bends than BCs, Dog Legs (DLs) for beam transport (DL1+DL2) · DLs typically have very

  3. THE OHIO RIVER VALLEY CO2 STORAGE PROJECT - PRELIMINARY ASSESSMENT OF DEEP SALINE RESERVOIRS AND COAL SEAMS

    SciTech Connect (OSTI)

    Michael J. Mudd; Howard Johnson; Charles Christopher; T.S. Ramakrishnan, Ph.D.

    2003-08-01

    This report describes the geologic setting for the Deep Saline Reservoirs and Coal Seams in the Ohio River Valley CO{sub 2} Storage Project area. The object of the current project is to site and design a CO{sub 2} injection facility. A location near New Haven, WV, has been selected for the project. To assess geologic storage reservoirs at the site, regional and site-specific geology were reviewed. Geologic reports, deep well logs, hydraulic tests, and geologic maps were reviewed for the area. Only one well within 25 miles of the site penetrates the deeper sedimentary rocks, so there is a large amount of uncertainty regarding the deep geology at the site. New Haven is located along the Ohio River on the border of West Virginia and Ohio. Topography in the area is flat in the river valley but rugged away from the Ohio River floodplain. The Ohio River Valley incises 50-100 ft into bedrock in the area. The area of interest lies within the Appalachian Plateau, on the western edge of the Appalachian Mountain chain. Within the Appalachian Basin, sedimentary rocks are 3,000 to 20,000 ft deep and slope toward the southeast. The rock formations consist of alternating layers of shale, limestone, dolomite, and sandstone overlying dense metamorphic continental shield rocks. The Rome Trough is the major structural feature in the area, and there may be some faults associated with the trough in the Ohio-West Virginia Hinge Zone. The area has a low earthquake hazard with few historical earthquakes. Target injection reservoirs include the basal sandstone/Lower Maryville and the Rose Run Sandstone. The basal sandstone is an informal name for sandstones that overlie metamorphic shield rock. Regional geology indicates that the unit is at a depth of approximately 9,100 ft below the surface at the project site and associated with the Maryville Formation. Overall thickness appears to be 50-100 ft. The Rose Run Sandstone is another potential reservoir. The unit is located approximately 1,100 ft above the basal sandstone and is 100-200 ft thick. The storage capacity estimates for a 20-mile radius from the injection well ranged from 39-78 million tons (Mt) for each formation. Several other oil and gas plays have hydraulic properties conducive for injection, but the formations are generally only 5-50 ft thick in the study area. Overlying the injection reservoirs are thick sequences of dense, impermeable dolomite, limestone, and shale. These layers provide containment above the potential injection reservoirs. In general, it appears that the containment layers are much thicker and extensive than the injection intervals. Other physical parameters for the study area appear to be typical for the region. Anticipated pressures at maximum depths are approximately 4,100 psi based on a 0.45 psi/ft pressure gradient. Temperatures are likely to be 150 F. Groundwater flow is slow and complex in deep formations. Regional flow directions appear to be toward the west-northwest at less than 1 ft per year within the basal sandstone. Vertical gradients are downward in the study area. A review of brine geochemistry indicates that formation fluids have high salinity and dissolved solids. Total dissolved solids ranges from 200,000-325,000 mg/L in the deep reservoirs. Brine chemistry is similar throughout the different formations, suggesting extensive mixing in a mature basin. Unconsolidated sediments in the Ohio River Valley are the primary source of drinking water in the study area.

  4. Petroleum geology of northern central America

    SciTech Connect (OSTI)

    Bishop, W.F.

    1980-07-01

    Major reserves of oil exist in the Reforma area of Tabasco and Chiapas states and the Campeche Shelf of SE Mexico in high-energy, bank-edge, reef-derived or reef-associated carbonate rocks, ranging in age from Late Jurassic to earliest Late Cretaceous. It is the conclusion of this study that the Reforma reservoir facies does not extend into West Guatemala. However, there the potential for major reserves in bank and lagoonal carbonates of similar age is considered excellent. A variety of structures, mostly resulting from salt tectonics, is present. Known reservoir rocks include fractured carbonates with secondary porosity resulting from solution and dolomitization, and limestones with primary intergranular porosity. An indigenous source is likely for the large quantities of oil which have been tested at Rubelsanto. Seals in the form of thick intervals of Cretaceous anhydrite and, in places, of Tertiary fine-grained clastics, are abundant. The area E of Rubelsanto may have considered merit, particularly if detailed structural analysis indicates that similar salt-tectonic features are present. The less deeply-buried areas of Cretaceous carbonates are not highly regarded because: (1) salt is absent; (2) temperatures sufficient for maturation of hydrocarbons may be lacking; and (3) a considerable number of dry holes with no significant shows have been drilled. North Guatemala is somewhat attractive, because the proper combination of unmetamorphosed Paleozoic organic shale on basement highs, well-developed Todos Santos sandstone reservoirs, and the overlying thick evaporite seal could trap sizable hydrocarbon accumulations. However, as degree of metamorphism decreases, presumably basinward, distance from source terrain for detritus increases and reservoirs may be inadequate. 13 figures, 1 table.

  5. Completion Report for Well ER-12-3 Corrective Action Unit 99: Rainier Mesa - Shoshone Mountain

    SciTech Connect (OSTI)

    U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office; Bechtel Nevada Corporation

    2006-05-01

    Well ER-12-3 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office, in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. The well was drilled in March and April 2005 as part of a hydrogeologic investigation program for the Rainier Mesa-Shoshone Mountain Corrective Action Unit. The overall purpose of the well was to gather subsurface data to better characterize the hydrogeology of central Rainier Mesa, especially in the older Tertiary volcanic rocks and Paleozoic sedimentary rocks. The main 47.0-centimeter hole was drilled to a depth of 799.2 meters and cased with 33.97-centimeter casing to 743.1 meters. The hole diameter was then decreased to 31.1 centimeters, and the well was drilled to a total depth of 1,496.0 meters. The completion string consisted of 13.97-centimeter stainless steel casing, with two slotted intervals open to the lower carbonate aquifer, suspended from 19.37-centimeter carbon steel casing. A piezometer string was installed outside the 33.97-centimeter casing to a depth of 467.1 meters to monitor a zone of perched water within the Tertiary volcanic section. Data gathered during and shortly after hole construction include composite drill cuttings samples collected every 3 meters (extra cuttings samples were collected from the Paleozoic rocks for paleontological analyses), sidewall core samples from 35 depths, various geophysical logs, and water level measurements. These data indicate that the well penetrated 674.2 meters of Tertiary volcanic rocks and 821.7 meters of Paleozoic dolomite and limestone. Forty-nine days after the well was completed, but prior to well development and testing, the water level inside the main hole was tagged at the depth of 949.1 meters, and the water level inside the piezometer string was tagged at 379.9 meters.

  6. FURNACE INJECTION OF ALKALINE SORBENTS FOR SULFURIC ACID CONTROL

    SciTech Connect (OSTI)

    Gary M. Blythe

    2000-12-01

    A test program is being sponsored by the US Department of Energy (DOE), EPRI, FirstEnergy, and TVA to investigate furnace injection of alkaline sorbents as a means of reducing sulfuric acid concentrations in the flue gas from coal-fired boilers. This test program is being conducted at the FirstEnergy Bruce Mansfield Plant (BMP), although later testing will be conducted at a TVA plant. A sorbent injection test was conducted the week of April 18, 2000. The test was the first of several short-term (one- to two-week duration) tests to investigate the effectiveness of various alkaline sorbents for sulfuric acid control and the effects of these sorbents on boiler equipment performance. This first short-term test investigated the effect of injecting dry dolomite powder (CaCO{sub 3} {center_dot} MgCO{sub 3}), a mineral similar to limestone, into the furnace of Unit 2. During the test program, various analytical techniques were used to assess the effects of sorbent injection. These primarily included sampling with the controlled condensation system (CCS) for determining flue gas SO{sub 3} content and an acid dew-point (ADP) meter for determining the sulfuric acid dew point (and, indirectly, the concentration of sulfuric acid) of the flue gas. EPA Reference Method 26a was used for determining hydrochloric acid (HCl) and hydrofluoric acid (HF), as well and chlorine (Cl{sub 2}) and fluorine (F{sub 2}) concentrations in the flue gas. Fly ash resistivity was measured using a Southern Research Institute (SRI) point-to-plane resistivity probe, and unburned carbon in fly ash was determined by loss on ignition (LOI). Coal samples were also collected and analyzed for a variety of parameters. Finally, visual observations were made of boiler furnace and convective pass surfaces prior to and during sorbent injection.

  7. Construction and Building Materials, 75 (2015) 1-10, http://dx.doi.org/10.1016/j.conbuildmat.2014.10.042. Multi-Scale Investigation of the Performance of Limestone in Concrete

    E-Print Network [OSTI]

    Bentz, Dale P.

    2015-01-01

    with the aluminate phases present in the cement (and fly #12;2 ash). Conversely, the aragonite polymorph of CaCO3

  8. Depositional environments, diagenesis, and porosity development of Mississippian Chappel carbonates at Thrash and Quanah SE Fields, Hardeman County, Texas 

    E-Print Network [OSTI]

    He, Shiliang T.

    1989-01-01

    /mudstone microfacies (Thrash Field) 5) Argillaceous, spiculitic, crinoid ? bryozoan mudstone/ 32 wackestone micro facies (Quanah SE Field) 6) Dolomitic, spiculiferous, silt ? sized wackestone/mudstone microfacies (Quanah SE Field) 7) Dolomitic, cherty floatstone... crinoi. d-bryozoan mudstona/wackestone Dolomitic, spiculiferous silty wackestone/muc(ALone Well Well to morleratc Pine to medium (0. 007 mm to 0. 00 ~) silty to I'ine to 0. 00 mm) Dul row Discontinuous, p&. anar, thin, laminae Micro(null inn...

  9. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    CYCLONE OPTIMIZATON Gerald H Luttrell Chris J Barbee Peter J Bethell Chris J Wood COAL LIGNITE AND PEAT COAL DESIGN DIAMONDS DOLOMITE ECONOMICS EFFICIENCY EVALUATION...

  10. DENSE MEDIUM CYCLONE OPTIMIZATON Gerald H. Luttrell; Chris J...

    Office of Scientific and Technical Information (OSTI)

    OPTIMIZATON Gerald H. Luttrell; Chris J. Barbee; Peter J. Bethell; Chris J. Wood 01 COAL, LIGNITE, AND PEAT; COAL; DESIGN; DIAMONDS; DOLOMITE; ECONOMICS; EFFICIENCY;...

  11. "Title","Creator/Author","Publication Date","OSTI Identifier...

    Office of Scientific and Technical Information (OSTI)

    Report",,,,"Virginia Polytech Institute and State University","USDOE","01 COAL, LIGNITE, AND PEAT; COAL; DESIGN; DIAMONDS; DOLOMITE; ECONOMICS; EFFICIENCY;...

  12. Teaching Organic Farming and Gardening: Resources for Instructors, 3rd Edition. Part 2 - Applied Soil Science

    E-Print Network [OSTI]

    2015-01-01

    minerals, such as iron, lime (calcium carbonate), and4. Acid soils and liming Lime (calcium carbonate) is addedhigh in calcium (such as lime, gypsum, or dolomite) or by

  13. CONDENSATION IN A MODEL CHICXULUB FIREBALL. D.S. Ebel1 and and L. Grossman1,2, 1Department of the Geophysical Sciences, 5734 South Ellis Ave., 2Enrico Fermi Institute, University of Chicago,

    E-Print Network [OSTI]

    sections [15, 16] of Pemex well Y4 were used, yielding volume fractions 0.568 calcite, 0.270 dolomite, 0

  14. MATERIALS AND MOLECULAR RESEARCH DIVISION. ANNUAL REPORT 1978

    E-Print Network [OSTI]

    Authors, Various

    2011-01-01

    major interest to combustion and pollution studies. Radical-pollution regulations, or dolomite are the preferred sorbents. react with the S02 released during combustion

  15. Miocene shallow-water carbonates on the Eratosthenes Seamount, easternmost Mediterranean Sea 

    E-Print Network [OSTI]

    Robertson, Alastair H F

    1998-01-01

    Miocene shallow-water limestones of the Eratosthenes Seamount add considerably to the picture of widespread and heterogeneous Mediterranean Miocene reef development. Shallow-water limestones were cored at two sites on the ...

  16. PCA R&D SN3148 State-of-the-Art Report on

    E-Print Network [OSTI]

    , concrete, concrete properties durability, hydration, limestone, particle size distribution, permeability is to serve as background technical information for engineers, specifiers, and other concrete technologists. The chemical and physical effects of limestone on fresh and hardened properties of concrete are emphasized

  17. To appear in the ACM SIGGRAPH 2007 conference proceedings Digital Bas-Relief from 3D Scenes

    E-Print Network [OSTI]

    -controlled milling machine to produce (d) a physical bas relief sculpture carved in limestone, roughly 15" tall

  18. International Symposium on Site Characterization for CO2 Geological Storage

    E-Print Network [OSTI]

    Tsang, Chin-Fu

    2006-01-01

    such as channels and sinkholes. Components of re- flectorinver- sions in limestone sinkholes of different sizes and

  19. The Evolution and Life Cycle of Valley Cold Pools

    E-Print Network [OSTI]

    Wilson, Travis Harold

    2015-01-01

    inversions in limestone sinkholes of different sizes andcold-air pools in elevated sinkholes: An idealized numerical

  20. 2001 by the American Society of Ichthyologists and Herpetologists Copeia, 2001(1), pp. 8291

    E-Print Network [OSTI]

    Mason, Robert T.

    gather in huge num- bers around limestone sinkholes. These animals mate soon after emerging from the dens

  1. Specific increase of human entorhinal population synaptic and neuronal activity during retrieval

    E-Print Network [OSTI]

    Halgren, Eric; Wang, Chun Mao; Ulbert, Istvan; Schomer, Donald L.; Knake, Susanne

    2007-01-01

    P, Heit G, Clarke JM, Marinkovic K. Spatio-temporal stagesSchomer DL, Knake S, Marinkovic K, Wu J, et al. ProcessingC, Ulbert I, Schomer DL, Marinkovic K, Halgren E. Responses

  2. Queen's University Belfast -Research Portal Alternative method for producing organic fertiliser from

    E-Print Network [OSTI]

    Paxton, Anthony T.

    from anaerobic digestion liquor and limestone powder Mangwandi, C., Liu, J., Albadarin, A. B., Allen, S Alternative method for producing organic fertiliser from anaerobic digestion liquor and limestone powder: High for producing organic fertiliser from anaerobic digestion liquor and limestone powder: High shear Wet

  3. Performance Cements Focus on Sustainability

    E-Print Network [OSTI]

    with low associated CO2 emissions Blended cements versus separate components Limestone in cement #12;3 High the beneficial re-use of byproducts Maximize use of materials with low associated CO2 emissions Blended cements versus separate components Limestone in cement #12;4 High Limestone Cements 5/21/08 Cost Holcim (US) Inc

  4. Geophysical Prospecting 40,761-783, 1992 ANISOTROPIC Q AND VELOCITY DISPERSION O F

    E-Print Network [OSTI]

    Santos, Juan

    material compositions and proportions. Analyses on sequences of sandstone-limestone and shalelimestone-layered medium are among the components of reservoir rocks: sandstones and limestones, for instance, which with porous or cracked rocks such as sandstones and limestones, respectively, and even shale formations

  5. Scottish Universities Physics Alliance Peer Reviewed Publications

    E-Print Network [OSTI]

    Strathclyde, University of

    for nickel-titanium alloy Swift, DC; Niemczura, JG; Paisley, DL; Johnson, RP; Hauer, A; Hackenberg, RE

  6. Evaluation of 4-H and FFA Members Scores on the 2011-2012 Texas Quality Counts Verification Exam 

    E-Print Network [OSTI]

    Grube, Brittany C.

    2013-05-01

    Experimental results indicated that dolomite dissolution rates increased in all the acid solutions as the disk rotational speeds increased at 150, 200, and 250?F. The dissolution of dolomite in 0.886 M GLDA was found to be surface-reaction limited...

  7. Publications July 8, 2008

    E-Print Network [OSTI]

    Yang, Zong-Liang

    dolomitized carbonate-ramp reservoirs: a case study of the Seminole San Andres unit--Part II, seismic modeling study of a carbonate ramp reservoir: Seminole San Andres Unit, Gaines County, Texas: SPE Reservoir, Charles, ed., 1998, Modeling dolomitized carbonate-ramp reservoirs: a case history of the Seminole San

  8. Nodding Syndrome In Uganda: Risk Factors At Disease Onset Mazumder R1 Palmer VS2,4 Spencer PS2,4 King P2 Stadnik R2 Lasarev M2 Kabahenda M 3 Kitara DL4 Stadler D2 and the Oregon-Uganda Nodding Syndrome Research Team

    E-Print Network [OSTI]

    Chapman, Michael S.

    , Uganda Introduction/Background: · Nodding Syndrome (NS) is a little known seizure disorder epileptic disorder in sub-Saharan Africa. Afr Health Sci. 2013 Jun;13(2):176-82. 2. Foltz JL, Makumbi I. 2013 Jun;13(2):183-198. 5. Kitgum District Local Government. Five Year Development Plan. 2012. 6. World

  9. 323. 1JYNJ;MI(S AND 00!ANTIM3 CF OOGINIC rouJJI'ANl' lNll'RICITrns (}l GAY MINERAlS. Z.Z. 2'bang. Penchu 2'bang and D.L. Sjmks. l:epart:lrent of Plant and Soil Sciences.

    E-Print Network [OSTI]

    Sparks, Donald L.

    323. 1JYNJ;MI(S AND 00!ANTIM3 CF OOGINIC rouJJI'ANl' lNll'RICITrns (}l GAY MINERAlS. Z.Z. 2'bangI.ark. IE 19717-lm The interactions of clay minerals with organic pollutants .ere investigated using

  10. Catalytic iron oxide for lime regeneration in carbonaceous fuel combustion

    DOE Patents [OSTI]

    Shen, Ming-Shing (Rocky Point, NY); Yang, Ralph T. (Middle Island, NY)

    1980-01-01

    Lime utilization for sulfurous oxides absorption in fluidized combustion of carbonaceous fuels is improved by impregnation of porous lime particulates with iron oxide. The impregnation is achieved by spraying an aqueous solution of mixed iron sulfate and sulfite on the limestone before transfer to the fluidized bed combustor, whereby the iron compounds react with the limestone substrate to form iron oxide at the limestone surface. It is found that iron oxide present in the spent limestone acts as a catalyst to regenerate the spent limestone in a reducing environment. With only small quantities of iron oxide the calcium can be recycled at a significantly increased rate.

  11. Carbonaceous fuel combustion with improved desulfurization

    DOE Patents [OSTI]

    Yang, Ralph T. (Middle Island, NY); Shen, Ming-shing (Rocky Point, NY)

    1980-01-01

    Lime utilization for sulfurous oxides adsorption in fluidized combustion of carbonaceous fuels is improved by impregnation of porous lime particulates with iron oxide. The impregnation is achieved by spraying an aqueous solution of mixed iron sulfate and sulfite on the limestone before transfer to the fluidized bed combustor, whereby the iron compounds react with the limestone substrate to form iron oxide at the limestone surface. The iron oxide present in the spent limestone is found to catalyze the regeneration rate of the spent limestone in a reducing environment. Thus both the calcium and iron components may be recycled.

  12. Permian foraminifera from Turkey

    E-Print Network [OSTI]

    Skinner, J. W.

    1969-01-30

    . DALLY 2-1783 A. Tur-22. Permian limestone, Coll. DALLY 2-1784 A. Tur-23. Permian limestone, Coil. DALLY 2-1785 A. Tur-24. Permian limestone, DALLY 2-1786 A. Tur-25. Permian limestone, Coll. DALLY 2-1787 A. Tur-26. Permian limestone, tion. Coll. DALLY 2... 4 (Hist. Nat.), Razprave, p. 385, 386, pl. 2, fig. 7-11; pl. 3, fig. 1-6, 9-13; pl. 8, fig. 2-5. Shell minute, thickly discoidal to subspherical, umbilicate, with broadly rounded periphery; axis of coiling is shorter diameter; mature specimens have 5...

  13. Well ER-6-1 Tracer Test Analysis: Yucca Flat, Nevada Test Site, Nye County, Nevada, Rev. No.: 0

    SciTech Connect (OSTI)

    Greg Ruskauff

    2006-09-01

    The ER-6-1 multiple-well aquifer test-tracer test (MWAT-TT) investigated groundwater flow and transport processes relevant to the transport of radionuclides from sources on the Nevada Test Site (NTS) through the lower carbonate aquifer (LCA) hydrostratigraphic unit (HSU). The LCA, which is present beneath much of the NTS, is the principal aquifer for much of southern Nevada. This aquifer consists mostly of limestone and dolomite, and is pervasively fractured. Groundwater flow in this aquifer is primarily in the fractures, and the hydraulic properties are primarily related to fracture frequency and fracture characteristics (e.g., mineral coatings, aperture, connectivity). The objective of the multiple-well aquifer test (MWAT) was to determine flow and hydraulic characteristics for the LCA in Yucca Flat. The data were used to derive representative flow model and parameter values for the LCA. The items of specific interest are: Hydraulic conductivity; Storage parameters; Dual-porosity behavior; and Fracture flow characteristics. The objective of the tracer transport experiment was to evaluate the transport properties and processes of the LCA and to derive representative transport parameter values for the LCA. The properties of specific interest are: Effective porosity; Matrix diffusion; Longitudinal dispersivity; Adsorption characteristics; and Colloid transport characteristics. These properties substantially control the rate of transport of contaminants in the groundwater system and concentration distributions. To best support modeling at the scale of the corrective action unit (CAU), these properties must be investigated at the field scale. The processes represented by these parameters are affected by in-situ factors that are either difficult to investigate at the laboratory scale or operate at a much larger scale than can be reproduced in the laboratory. Measurements at the field scale provide a better understanding of the effective average parameter values. The scale of this tracer test is still small compared to the scale of a CAU, but is of sufficient scale to be generally representative of the processes that affect in-situ transport. The scale of the tracer test undertaken is limited by the rate of transport in the formation and the resultant time frame required for completing such a test. The measurements at the field scale will provide information for relating laboratory measurements for transport processes to the larger scale. This report describes the analysis of the tracer test data and development of a conceptual model of transport in the LCA in Yucca Flat.

  14. Optimizing Fracture Treatments in a Mississippian "Chat" Reservoir, South-Central Kansas

    SciTech Connect (OSTI)

    K. David Newell; Saibal Bhattacharya; Alan Byrnes; W. Lynn Watney; Willard Guy

    2005-10-01

    This project is a collaboration of Woolsey Petroleum Corporation (a small independent operator) and the Kansas Geological Survey. The project will investigate geologic and engineering factors critical for designing hydraulic fracture treatments in Mississippian ''chat'' reservoirs. Mississippian reservoirs, including the chat, account for 159 million m3 (1 billion barrels) of the cumulative oil produced in Kansas. Mississippian reservoirs presently represent {approx}40% of the state's 5.6*106m3 (35 million barrels) annual production. Although geographically widespread, the ''chat'' is a heterogeneous reservoir composed of chert, cherty dolomite, and argillaceous limestone. Fractured chert with micro-moldic porosity is the best reservoir in this 18- to 30-m-thick (60- to 100-ft) unit. The chat will be cored in an infill well in the Medicine Lodge North field (417,638 m3 [2,626,858 bbls] oil; 217,811,000 m3 [7,692,010 mcf] gas cumulative production; discovered 1954). The core and modern wireline logs will provide geological and petrophysical data for designing a fracture treatment. Optimum hydraulic fracturing design is poorly defined in the chat, with poor correlation of treatment size to production increase. To establish new geologic and petrophysical guidelines for these treatments, data from core petrophysics, wireline logs, and oil-field maps will be input to a fracture-treatment simulation program. Parameters will be established for optimal size of the treatment and geologic characteristics of the predicted fracturing. The fracturing will be performed and subsequent wellsite tests will ascertain the results for comparison to predictions. A reservoir simulation program will then predict the rate and volumetric increase in production. Comparison of the predicted increase in production with that of reality, and the hypothetical fracturing behavior of the reservoir with that of its actual behavior, will serve as tests of the geologic and petrophysical characterization of the oil field. After this feedback, a second well will be cored and logged, and procedure will be repeated to test characteristics determined to be critical for designing cost-effective fracture treatments. Most oil and gas production in Kansas, and that of the Midcontinent oil industry, is dominated by small companies. The overwhelming majority of these independent operators employ less than 20 people. These companies have limited scientific and engineering expertise and they are increasingly needing guidelines and technical examples that will help them to not be wasteful of their limited financial resources and petroleum reserves. To aid these operators, the technology transfer capabilities of the Kansas Geological Survey will disseminate the results of this study to the local, regional, and national oil industry. Internet access, seminars, presentations, and publications by Woolsey Petroleum Company and Kansas Geological Survey geologists and engineers are anticipated.

  15. Geomechanical Analysis and Design Considerations for Thin-Bedded Salt Caverns

    SciTech Connect (OSTI)

    Michael S. Bruno

    2005-06-15

    The bedded salt formations located throughout the United States are layered and interspersed with non-salt materials such as anhydrite, shale, dolomite and limestone. The salt layers often contain significant impurities. GRI and DOE have initialized this research proposal in order to increase the gas storage capabilities by providing operators with improved geotechnical design and operating guidelines for thin bedded salt caverns. Terralog has summarized the geologic conditions, pressure conditions, and critical design factors that may lead to: (1) Fracture in heterogeneous materials; (2) Differential deformation and bedding plane slip; (3) Propagation of damage around single and multiple cavern; and (4) Improved design recommendations for single and multiple cavern configurations in various bedded salt environments. The existing caverns within both the Permian Basin Complex and the Michigan and Appalachian Basins are normally found between 300 m to 1,000 m (1,000 ft to 3,300 ft) depth depending on local geology and salt dissolution depth. Currently, active cavern operations are found in the Midland and Anadarko Basins within the Permian Basin Complex and in the Appalachian and Michigan Basins. The Palo Duro and Delaware Basins within the Permian Basin Complex also offer salt cavern development potential. Terralog developed a number of numerical models for caverns located in thin bedded salt. A modified creep viscoplastic model has been developed and implemented in Flac3D to simulate the response of salt at the Permian, Michigan and Appalachian Basins. The formulation of the viscoplastic salt model, which is based on an empirical creep law developed for Waste Isolation Pilot Plant (WIPP) Program, is combined with the Drucker-Prager model to include the formation of damage and failure. The Permian salt lab test data provided by Pfeifle et al. 1983, are used to validate the assumptions made in the material model development. For the actual cavern simulations two baseline models are developed for single and multiple caverns, respectively. Different parameters that affect damage propagation and deformation of salt cavern, such as cavern pressure, operating conditions, cavern height/diameter ratio, overburden stiffness and roof thickness are analyzed and the respective results summarized. For multiple horizontal caverns numerical models are developed to determine the cavern interaction and the minimum safe center to center distance. A step by step methodology for operators to assess critical cavern design parameters for thin bedded salt formations is also presented.

  16. Improving Gas Flooding Efficiency

    SciTech Connect (OSTI)

    Reid Grigg; Robert Svec; Zheng Zeng; Alexander Mikhalin; Yi Lin; Guoqiang Yin; Solomon Ampir; Rashid Kassim

    2008-03-31

    This study focuses on laboratory studies with related analytical and numerical models, as well as work with operators for field tests to enhance our understanding of and capabilities for more efficient enhanced oil recovery (EOR). Much of the work has been performed at reservoir conditions. This includes a bubble chamber and several core flood apparatus developed or modified to measure interfacial tension (IFT), critical micelle concentration (CMC), foam durability, surfactant sorption at reservoir conditions, and pressure and temperature effects on foam systems.Carbon dioxide and N{sub 2} systems have been considered, under both miscible and immiscible conditions. The injection of CO2 into brine-saturated sandstone and carbonate core results in brine saturation reduction in the range of 62 to 82% brine in the tests presented in this paper. In each test, over 90% of the reduction occurred with less than 0.5 PV of CO{sub 2} injected, with very little additional brine production after 0.5 PV of CO{sub 2} injected. Adsorption of all considered surfactant is a significant problem. Most of the effect is reversible, but the amount required for foaming is large in terms of volume and cost for all considered surfactants. Some foams increase resistance to the value beyond what is practical in the reservoir. Sandstone, limestone, and dolomite core samples were tested. Dissolution of reservoir rock and/or cement, especially carbonates, under acid conditions of CO2 injection is a potential problem in CO2 injection into geological formations. Another potential change in reservoir injectivity and productivity will be the precipitation of dissolved carbonates as the brine flows and pressure decreases. The results of this report provide methods for determining surfactant sorption and can be used to aid in the determination of surfactant requirements for reservoir use in a CO{sub 2}-foam flood for mobility control. It also provides data to be used to determine rock permeability changes during CO{sub 2} flooding due to saturation changes, dissolution, and precipitation.

  17. Geologic reconnaissance of natural fore-reef slope and a large submarine rockfall exposure, Enewetak Atoll

    SciTech Connect (OSTI)

    Halley, R.B.; Slater, R.A.

    1987-05-01

    In 1958 a submarine rockfall exposed a cross section through the reef and fore-reef deposits along the northwestern margin of Enewetak Atoll, Marshall Islands. Removal of more than 10/sup 8/ MT of rock left a cirque-shaped submarine scarp 220 m high, extending back 190 m into the modern reef, and 1000 m along the reef trend. The scarp exposed older, steeply dipping beds below 220 m along which the rockfall detached. They sampled this exposure and the natural fore-reef slope surrounding it in 1984 and 1985 using a manned submersible. The natural slope in this area is characterized by three zone: (1) the reef plate, crest, and near fore reef that extends from sea level to -16 m, with a slope of less than 10/sup 0/, (2) the bypass slope that extends from -16 to -275 m, with slopes of 55/sup 0/ decreasing to 35/sup 0/ near the base, and (3) a debris slope of less than 35/sup 0/ below -275 m. Vertical walls, grooves, and chutes, common on other fore-reef slopes, are sparse on the northwestern slope of Enewetak. The scarp exposes three stratigraphic units that are differentiated by surficial appearance: (1) a near-vertical wall from the reef crest to 76 m that appears rubbly, has occasional debris-covered ledges, and is composed mainly of coral; (2) a vertical to overhanging wall from -76 m to -220 m that is massive and fractured, and has smooth, blocky surfaces; and (3) inclined bedding below -220 m along which the slump block has fractured, exposing a dip slope of hard, dense, white limestone and dolomite that extends below -400 m. Caves occur in all three units. Open cement-lined fractures and voids layered with cements are most common in the middle unit, which now lies within the thermocline. Along the sides of the scarp are exposed fore-reef boulder beds dipping at 30/sup 0/ toward the open sea; the steeper (55/sup 0/) dipping natural surface truncates these beds, which gives evidence of the erosional nature of the bypass slope.

  18. Effects of transcutaneous thermal and electrical stimulation of the teat on pituitary luteinizing hormone, prolactin and oxytocin secretion in ovariectomized, estrogen-treated beef cows following acute weaning 

    E-Print Network [OSTI]

    Cutshaw, Jonetta Lee

    1991-01-01

    ld E dl Cll u 0 dl dl dl td IP Sl 0 0 0 du rd IP E dl Ca 0 ld Ul 23 calves were returned to dams. Stimulation of the Teat and Tail Electrical Stimulation. Electrical stimulation was performed by taping two infant limb... treatment groups (n = 5 per group): 1) control-suckled (CS), 2) weaned plus electrical stimulation of the teat (ESTT), 3) weaned plus electrical stimulation of the tail (ESTL), 4) weaned plus thermal stimulation of the teat (TTT), 5) weaned plus thermal...

  19. Atmos. Chem. Phys., 8, 72057215, 2008 www.atmos-chem-phys.net/8/7205/2008/

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    components of mineral aerosols such as calcite and dolomite can react readily with reactive nitrogen species dehumidifying and humidifying processes, the other two studies focused only on the humidifying process. Al

  20. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Electronic Full Text1 Citations0 Multimedia0 Datasets0 Filter Results Filter by Subject coal (1) coal, lignite, and peat (1) design (1) diamonds (1) dolomite (1) economics (1)...

  1. DENSE MEDIUM CYCLONE OPTIMIZATON (Technical Report) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    that cannot be upgraded in static dense medium separators, can be found in most modern coal plants and in a variety of mineral plants treating iron ore, dolomite, diamonds, potash...

  2. Soil Acidity and Manganese Nutrition of Corn and Soybeans as Affected by Lime and Nitrogen Applications in an Oxisol under a No-Till System

    E-Print Network [OSTI]

    Caires, Eduardo Fávero; Garbuio, Fernando José; Joris, Hélio Antonio Wood; Pereira, Paulo Roberto da Silva Filho

    2009-01-01

    control soil acidity in NT, lime is broadcast on the surfacethat examined the effect of lime and N applications soilacid loamy soil. Dolomitic lime was surface applied and N-NH

  3. Teaching Organic Farming and Gardening: Resources for Instructors, 3rd Edition. Part 1 - Skills and Practices

    E-Print Network [OSTI]

    2015-01-01

    of amendments such as compost and lime d) Allows soil to dryFertilizers such as gypsum/lime can improve soil structure;magnesium carbonate – dolomitic lime: added to acidic soils

  4. eScholarship provides open access, scholarly publishing services to the University of California and delivers a dynamic

    E-Print Network [OSTI]

    today as dolomite-cemented sand with oil inclusions. The laminae in this injectite are easily detected due to preferential iron oxide-cementation of the well-aligned sand laminae, and lack of cement

  5. Diagenetic controls on porosity and permeability in Miocene carbonates, La Molata, Spain

    E-Print Network [OSTI]

    Li, Zhaoqi

    2012-05-31

    and evaporated seawater (43 ppt). The distribution of carbon and oxygen isotopes on the platform, and the Sr data indicate vertical flow of freshwater into the carbonate system. Thus, dolomitization is due to ascending freshwater-mesohaline mixing. This mechanism...

  6. The Effects of Initial Condition of Fracture Surfaces, Acid Spending, and Type on Conductivity of Acid Fracture 

    E-Print Network [OSTI]

    Almomen, Ali Mansour

    2013-07-24

    . Another area of interest is the variation of conductivity along the fracture due to acid spending. We also investigated the contact time, acid system type, and treatment temperature effects on conductivity using San Andres dolomite cores. The results...

  7. A Brief Summary of Dictionary Learning Based Approach for Classification

    E-Print Network [OSTI]

    Shu, Kong

    2012-01-01

    This note presents some representative methods which are based on dictionary learning (DL) for classification. We do not review the sophisticated methods or frameworks that involve DL for classification, such as online DL and spatial pyramid matching (SPM), but rather, we concentrate on the direct DL-based classification methods. Here, the "so-called direct DL-based method" is the approach directly deals with DL framework by adding some meaningful penalty terms. By listing some representative methods, we can roughly divide them into two categories, i.e. (1) directly making the dictionary discriminative and (2) forcing the sparse coefficients discriminative to push the discrimination power of the dictionary. From this taxonomy, we can expect some extensions of them as future researches.

  8. A Brief Summary of Dictionary Learning Based Approach for Classification (revised)

    E-Print Network [OSTI]

    Kong, Shu

    2012-01-01

    This note presents some representative methods which are based on dictionary learning (DL) for classification. We do not review the sophisticated methods or frameworks that involve DL for classification, such as online DL and spatial pyramid matching (SPM), but rather, we concentrate on the direct DL-based classification methods. Here, the "so-called direct DL-based method" is the approach directly deals with DL framework by adding some meaningful penalty terms. By listing some representative methods, we can roughly divide them into two categories, i.e. (1) directly making the dictionary discriminative and (2) forcing the sparse coefficients discriminative to push the discrimination power of the dictionary. From this taxonomy, we can expect some extensions of them as future researches.

  9. Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making. An ENERGY STAR Guide for Energy and Plant Managers

    E-Print Network [OSTI]

    Worrell, Ernst

    2008-01-01

    18 6.2 Raw MaterialsThe most common raw materials used for cement production areThe major component of the raw materials, the limestone or

  10. Research paper Basin-to-platform chemostratigraphy and diagenesis of the

    E-Print Network [OSTI]

    Fouke, Bruce W.

    form 12 December 2004; accepted 20 December 2004 Abstract Cathodoluminescence petrography has been in their original lateral depositional continuity. Cathodoluminescence petrography indicates that the limestones

  11. Paleogene landscape evolution of the central North American Cordillera: Developing topography and hydrology in the Laramide foreland

    E-Print Network [OSTI]

    Davis, SJ; Mulch, A; Carroll, AR; Horton, TW; Chamberlain, CP

    2009-01-01

    Microfossils of the Oil Shale of the Green River Formationded limestone, marl, oil shale (kerogen-rich and ? ssiledelineated by the rich oil shales of the Mahogany Zone (

  12. Chapter Eight Rock Varnish

    E-Print Network [OSTI]

    Dorn, Ron

    Most earth scientists thinking about geochemical sediments envisage strati- graphic sequences shelters in limestone areas Oxalate crust Mostly calcium oxalate and silica with variable concentrations

  13. A Plague of Prisons: The Epidemiology of Mass Incarceration in America

    E-Print Network [OSTI]

    Reiter, KA

    2013-01-01

    problematic account of prison growth. Michigan Law ReviewHIV/AIDS Ward at Limestone Prison. Ann Arbor, MI: UniversityRW (2007) Golden Gulag: Prisons, Surplus, Crisis, and

  14. Energy Efficiency Improvement Opportunities for the Cement Industry

    E-Print Network [OSTI]

    Worrell, Ernst

    2008-01-01

    one or more additives (fly ash, pozzolans, granulated blastlike blast furnace slag, fly ash, coal gangue, limestone,Blast Furnace Slag Fly ash Cinder Coal gangue Lime- stone

  15. Assessment of Energy Efficiency Improvement and CO2 Emission Reduction Potentials in the Cement Industry in China

    E-Print Network [OSTI]

    Hasanbeigi, Ali

    2013-01-01

    can include such materials as fly ash from electric poweradditives (GGBS, pozzolana, fly ash, or limestone), made upfly ash (>20% to fly ash), or

  16. NIST Special Publication 1173 Virtual Cement and Concrete

    E-Print Network [OSTI]

    made with port- land cement clinker, calcium sulfate, fly ash, slag, limestone, and other ma- terials.2 Slags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.3 Fly Ashes

  17. Analysis of Energy-Efficiency Opportunities for the Cement Industry in Shandong Province, China

    E-Print Network [OSTI]

    Price, Lynn

    2010-01-01

    Blended cement (Additives: fly ash, pozzolans, and blastcan include such materials as fly ash from electric poweradditives (GGBS, pozzolana, fly ash, or limestone), made up

  18. ENERGY UTILIZATION AND ENVIRONMENTAL CONTROL TECHNOLOGIES IN THE COAL-ELECTRIC CYCLE

    E-Print Network [OSTI]

    Ferrell, G.C.

    2010-01-01

    with By-Product Credits and Sludge Fixation ($1978). AnnualEvaluation of Lime/Limestone Sludge Disposal Options,"With Byproduct Credits and Sludge Fixation Emission Factors

  19. Project Number: 215219 Project Acronym: SOA4All

    E-Print Network [OSTI]

    Hitzler, Pascal

    ______________________________________________ 14 3.4 WSML-DL V2.0 SYNTAX DEFINITION ________________________________ 15 3.5 ALGORITHMISATION.1.3 Defining the Features of the WSML-DL v2.0 Language Activity N: Activity 2 - Core Research and Development-2013) Dissemination Level PU Public X #12;SOA4All ­FP7 ­ 215219 ­ D3.1.3 Defining the Features of the WSML-DL v2.0

  20. http://www.ecc.u-tokyo.ac.jp/doc/announce/newuser.html http://utroam.nc.u-tokyo.ac.jp/ [

    E-Print Network [OSTI]

    Goda, Keisuke

    OPAC TREEMyOPAC MyOPAC ()10 2 ECCS ECCS http://www.ecc.u-tokyo.ac.jp/doc/announce/newuser.html LAN LANutroam utroamECCS http://utroam.nc.u-tokyo.ac.jp/ [] ECCS http://www.dl.itc.u-tokyo.ac.jp/gacos/faq/gakugai.html http://www.dl.itc.u-tokyo.ac.jp/gacos/ http://www.dl.itc.u-tokyo.ac.jp/gacos/training.html https

  1. 2015.6-Google Scholar [] Google Scholar Scholar

    E-Print Network [OSTI]

    Goda, Keisuke

    Google Scholar OKhttp://www.dl.itc.u-tokyo.ac.jp/gacos/index.html TREE Google Scholar GACoWorks UTokyo Article Link , RefWorks GACoS FAQRefWorks http://www.dl.itc.u-tokyo.ac.jp/gacos/faq/refw.html-VPN Gateway or GW http://www.dl.itc.u-tokyo.ac.jp/gacos/faq/gakugai.html PubMed GACoS P http

  2. DOE and USDA Select Projects for more than $24 Million in Biomass...

    Energy Savers [EERE]

    biobased products. jointsolicitation2009dl.pdf More Documents & Publications Roadmap for Bioenergy and Biobased Products in the United States Feedstock Supply and...

  3. Thermally-activated non-Schmid glide of screw dislocations in W using atomistically-informed kinetic Monte Carlo simulations

    E-Print Network [OSTI]

    2015-01-01

    D.L. , Zhu, T. , 2014. Crystal plasticity model for BCC iron2008. BCC single crystal plasticity modeling and itsbeen implemented in crystal plasticity mod- els, and their

  4. Student public commitment in a school-based diabetes prevention project: impact on physical health and health behavior

    E-Print Network [OSTI]

    2011-01-01

    D. Cusimano, L. DeBar, D. Elliot, H.M. Grund, S. McCormick,363:443-453. Venditti EM, Elliot DL, Faith MS, Firrell LS,

  5. Process evaluation results from the HEALTHY physical education intervention

    E-Print Network [OSTI]

    2011-01-01

    D. Cusimano, L. DeBar, D. Elliot, H. M. Grund, S. McCormick,20. 14. Venditti EM, Elliot DL, Faith MS et al. Rationale,

  6. Effect of Nutrition Changes on Foods Selected by Students in a Middle School-based Diabetes Prevention Intervention Program; the HEALTHY Experience

    E-Print Network [OSTI]

    2012-01-01

    D. Cusimano, L. DeBar, D. Elliot, H.M. Grund, S. McCormick,S43. 12. Venditti EM, Elliot DL, Faith MS, et al. Rational,

  7. Optimal Use of Groundwater and Surface Water to Reduce Land Subsidence 

    E-Print Network [OSTI]

    Acosta-Gonzalez, G.; Reddell, D. L.

    1980-01-01

    Optimal Use of Groundwater and Surface Water to Reduce Land Subsidence G. Acosta-Gonzalez D.L. Reddell Texas Water Resources Institute Texas A&M University ...

  8. Reducing Greenhouse Emissions and Fuel Consumption

    E-Print Network [OSTI]

    Shaheen, Susan; Lipman, Timothy

    2007-01-01

    CNGV: compressed natural gas vehicle Dl CI DV: direct-Compressed natural gas (CNG) vehicles offer similar emissionvehicle ICE : internal combustion engine NG : natural gas

  9. Temperature coefficients for PV modules and arrays: Measurement...

    Office of Scientific and Technical Information (OSTI)

    methods, difficulties, and results King, D.L.; Kratochvil, J.A.; Boyson, W.E. 14 SOLAR ENERGY; SOLAR CELL ARRAYS; SOLAR CELLS; MEASURING METHODS; TEMPERATURE DEPENDENCE;...

  10. How Wood Chip Size Affects Pretreatment Effectiveness of Woody Biomass for Biological Processing

    E-Print Network [OSTI]

    Tam, Jerry

    2013-01-01

    Klass, D.L. , 1998. Biomass for Renewable Energy, Fuels andof woody biomass size reduction for energy production. In:of woody biomass for biofuel production: Energy efficiency,

  11. Previous Events

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

    (pdf) July 20 - July 21, 2015 - Workshop: La Fonda Hotel Advanced Qualification of Additive Manufacturing Materials Workshop June 30, 2015 - DL Dr. Peter Wlfle - Insights...

  12. EERE PowerPoint 97-2004 Template: Green Version

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

    Reservior Technology Research Development and Demonstration ( 2001). Gallup, DL. Ore Geology Reviews(1998) 3 | US DOE Geothermal Office eere.energy.gov Impact of Research: Robust...

  13. MATERIALS AND MOLECULAR RESEARCH DIVISION, ANNUAL REPORT 1976

    E-Print Network [OSTI]

    Authors, Various

    2010-01-01

    Introduction. Aside from UF6, uranium(IV) boro- hydride andPaP62- complexes, but not in the UF6 2- complex. AgaDl, the

  14. ASC eNews Quarterly Newsletter September 2012 | National Nuclear...

    National Nuclear Security Administration (NNSA)

    boundaries," Physical Review B, Vol. 85, No. 1. Maniadis, P., Lookman, T., Saxena, A., Smith, D.L. (2012). "Proposal for Manipulating Functional Interface Properties of Composite...

  15. Advanced Organic Vapor Cycles for Improving Thermal Conversion Efficiency in Renewable Energy Systems

    E-Print Network [OSTI]

    Ho, Tony

    2012-01-01

    DL Chase and PT Kehoe, "GE Combined-Cycle Product Line andand W Stenze, "Combined Cycle Heat Recovery Optimization,"bottoming cycle FOR combined cycle power plants," Applied

  16. Nonprice incentives and energy conservation

    E-Print Network [OSTI]

    Asensio, OI; Delmas, MA; Delmas, MA

    2015-01-01

    individual choices about energy efficiency. Proc. Natl.4. Costa DL, Kahn ME (2013) Energy conservation “nudges” andInformation strategies and energy conservation behavior: a

  17. 6/9/12 9:26 PMWeb of Knowledge [v.5.6] -Web of Science Results Page 1 of 2http://apps.webofknowledge.com.lib-ezproxy.tamu.edu:2048/summary.do?product=WOS&search_mode=GeneralSearch&qid=4&SID=3DjHaDL3fmo654LB9NG&page=1&action=sort&sortBy=LC.D&showFirstPage=

    E-Print Network [OSTI]

    Cui, Shuguang "Robert"

    6/9/12 9:26 PMWeb of Knowledge [v.5.6] - Web of Science Results Page 1 of 2http=SCI-EXPANDED, SSCI, A&HCI, CPCI-S, CPCI- SSH. Lemmatization=On View Web Results >> Results: 285 Page 1 of 29 Sort by: 27 Issue: 3 Pages: 20-34 DOI: 10.1109/MSP.2010.936019 Published: MAY 2010 Times Cited: 33 (from Web

  18. Performance of Concrete Made With Slag Cement and

    E-Print Network [OSTI]

    Performance of Concrete Made With Slag Cement and Portland-Limestone Blended Cement Philadelphia;Today's Discussion ! The materials ! Slag cement ! Portland-limestone cement ! Use in concrete is slag cement? #12;! Non-metallic product of an iron blast furnace ! Granulated ! Ground ! Cementitious

  19. Fuel gas desulfurization

    DOE Patents [OSTI]

    Yang, Ralph T. (Tonawanda, NY); Shen, Ming-Shing (Rocky Point, NY)

    1981-01-01

    A method for removing sulfurous gases such as H.sub.2 S and COS from a fuel gas is disclosed wherein limestone particulates containing iron sulfide provide catalytic absorption of the H.sub.2 S and COS by the limestone. The method is effective at temperatures of 400.degree. C. to 700.degree. C. in particular.

  20. Journal of Sedimentary Research, 2010, v. 80, 943954 Research Article

    E-Print Network [OSTI]

    González, Luis A.

    boreholes advanced to depths of 400­450 cm (top of limestone bedrock) from the Chattanooga Coke Plant (CCP of anthropogenically remolded clay soil fill containing coal clinker, cinder grains, and limestone gravel; most layers of coarse fill were impregnated with creosote and coal tar. Most undisturbed soil (below 1 m depth

  1. Metadata Extraction from Bibliographic Documents for Digital Library

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Metadata Extraction from Bibliographic Documents for Digital Library A. Belaïd1 and D. Besagni2 1 for a digital library (DL), their automatic recognition presents an obvious interest. However as their origin. 1. Introduction The digital library (DL) [1] has become more and more a common tool for everyone

  2. Analyses of sulfur-asphalt field trials in Texas 

    E-Print Network [OSTI]

    Newcomb, David Edward

    1979-01-01

    I I wr r I OI OI OI OI OI OI OI OI OI CL dl OJ OI OI OI OI Ol Crl OOCJCCJ: JJ av v o o o v o a IU fd RI fd fd IU fd fd fU IO 4 4 4 4 IO 4 4 IO C L I \\ I 1 III VI Vl III Vl f/I IU IU IU IU O Cl dl U CLCLCCCLU CL'IZ:LL a n. o. IU lll dl... IO Ol IO I/I (U Crl O ' dl E IOmr mOIOmL/IIO IO P) M CO P) Iff fO fO IO CU Of O Gl O O v O dl dl dl v C O C Cl fd fd fd 5 I- O U-U U I- IU df dl IJ IJ O O O fd fd fd L- LI U Lf E C fd fd O O. ' IU V/I Lf CCI fd UJ O O...

  3. Properties of adsorbates in III-V semiconductors

    E-Print Network [OSTI]

    Winn, Darby L.

    2007-01-01

    5754 (MAR 22 2004). 7. G.M. Credo, P.J. Carson, D.L. Winn,1394 (March 8. G.M. Credo, D.L. Winn and S.K. Buratto, “1265 (April 2001). 9. G.M. Credo, G.M. Lowman, J.A. DeAro,

  4. Applications of Description Logics: State of the Art and Research Challenges

    E-Print Network [OSTI]

    Murawski, Andrzej

    ­4]. They are, how- ever, best known as the basis for ontology languages such as OIL, DAML+OIL and OWL [5 used in, e.g., knowledge manage- ment systems, e-Science, and bio-informatics and medical terminologies expressive power: OWL Lite, OWL DL and OWL Full. Like OWL's predecessor DAML+OIL, OWL Lite and OWL DL

  5. Modeling the Effects of Electrode Composition and Pore Structure on the Performance of Electrochemical Capacitors

    E-Print Network [OSTI]

    Popov, Branko N.

    -6 Energy storage mechanisms in an electrochemical capacitor include separation of charge at the interface storage in DL capacitance is essentially electrostatic in nature, and so DL charge/discharge processes Engineering, University of South Carolina, Swearingen Engineering Center, Columbia, South Carolina 29208, USA

  6. naval postgraduate school, alumni survey 2009 report Office of Institutional Research

    E-Print Network [OSTI]

    Analysis 3 Material Logistics Support Management 1 Shore Installation Management 1 Systems Acquisition Management 3 Leadership Education and Development (DL) 1 Manpower Systems Analysis 1 Material Logistics Material Logistics Support Management 3 Program Management (DL) 2 Supply Chain Management 2 Systems

  7. Khesbn no. 149 - Spring 2007 - Journal

    E-Print Network [OSTI]

    Admin, LAYCC

    2007-01-01

    ryrrf,.t rybrse:XbXu X - 0"l'l nx r1$1l? - Dl'Dl5t6r1 "lltrro'. 'tuuxs yu'rgllpr) nx i:*pi*ulrii:rru>rp lyDll fN .ly:Eyl ? '? ff lltly vtrnrrn nx uDNVJrb orD D'tt Fryn ybr /? t{

  8. Fishery Notes New Fishery Role for

    E-Print Network [OSTI]

    } \\Clen- It t as v.dl ~ educator, '>tated that the gn)v.lng eel L'port Ou~ine\\, . he \\-enttlated \\ltde\\\\oclatlon of Lndemdter In tru tllr\\ Program potllght dl\\lng Irontler the ~tate 01 the art, underv.ater gear Though Ala ka

  9. Publications List Refereed: (78 Total)

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    content yields of Eucalyptus grandis and Eucalyptus robusta in south Florida. Fla. Agr. Exp. Sta. Tech of wood and bark among twenty Eucalyptus grandis progenies. Wood Sci. Technol. 18: 97 100. Rockwood, DL of Eucalyptus grandis for biomass production in Florida. In: Biomass Energy Development: 103 110. Dippon, DR, DL

  10. Non-FMA Ontologies Is the FMA's Compatibility with

    E-Print Network [OSTI]

    Washington at Seattle, University of

    -DL Many ontologies currently implemented in DL #12;NCI Thesaurus (1) "Reference terminology and biomedical related to cancer and biomedical research #12;NCI Thesaurus (2) #12;NCI Thesaurus (3) #12;Heart (FMA) #12;Heart (NCI) #12;Heart (NCI) #12;Heart (NCI) #12;NCI Thesaurus SparQL Query #12;NCI Thesaurus Spar

  11. Sub-crop geologic map of pre-Tertiary rocks in the Yucca Flat and northern Frenchman Flat areas, Nevada Test Site, southern Nevada

    SciTech Connect (OSTI)

    Cole, J.C.; Harris, A.G.; Wahl, R.R.

    1997-10-02

    This map displays interpreted structural and stratigraphic relations among the Paleozoic and older rocks of the Nevada Test Site region beneath the Miocene volcanic rocks and younger alluvium in the Yucca Flat and northern Frenchman Flat basins. These interpretations are based on a comprehensive examination and review of data for more than 77 drillholes that penetrated part of the pre-Tertiary basement beneath these post-middle Miocene structural basins. Biostratigraphic data from conodont fossils were newly obtained for 31 of these holes, and a thorough review of all prior microfossil paleontologic data is incorporated in the analysis. Subsurface relationships are interpreted in light of a revised regional geologic framework synthesized from detailed geologic mapping in the ranges surrounding Yucca Flat, from comprehensive stratigraphic studies in the region, and from additional detailed field studies on and around the Nevada Test Site. All available data indicate the subsurface geology of Yucca Flat is considerably more complicated than previous interpretations have suggested. The western part of the basin, in particular, is underlain by relics of the eastward-vergent Belted Range thrust system that are folded back toward the west and thrust by local, west-vergent contractional structures of the CP thrust system. Field evidence from the ranges surrounding the north end of Yucca Flat indicate that two significant strike-slip faults track southward beneath the post-middle Miocene basin fill, but their subsurface traces cannot be closely defined from the available evidence. In contrast, the eastern part of the Yucca Flat basin is interpreted to be underlain by a fairly simple north-trending, broad syncline in the pre-Tertiary units. Far fewer data are available for the northern Frenchman Flat basin, but regional analysis indicates the pre-Tertiary structure there should also be relatively simple and not affected by thrusting. This new interpretation has implications for ground water flow through pre-Tertiary rocks beneath the Yucca Flat and northern Frenchman Flat areas, and has consequences for ground water modeling and model validation. Our data indicate that the Mississippian Chainman Shale is not laterally extensive confining unit in the western part of the basin because it is folded back onto itself by the convergent structures of the Belted Range and CP thrust systems. Early and Middle Paleozoic limestone and dolomite are present beneath most of both basins and, regardless of structural complications, are interpreted to form a laterally continuous and extensive carbonate aquifer. Structural culmination that marks the French Peak accommodation zone along the topographic divide between the two basins provides a lateral pathway through highly fractured rock between the volcanic aquifers of Yucca Flat and the regional carbonate aquifer. This pathway may accelerate the migration of ground-water contaminants introduced by underground nuclear testing toward discharge areas beyond the Nevada Test Site boundaries. Predictive three-dimensional models of hydrostratigraphic units and ground-water flow in the pre-Tertiary rocks of subsurface Yucca Flat are likely to be unrealistic due to the extreme structural complexities. The interpretation of hydrologic and geochemical data obtained from monitoring wells will be difficult to extrapolate through the flow system until more is known about the continuity of hydrostratigraphic units. 1 plate

  12. Evaluating the Influence of Pore Architecture and Initial Saturation on Wettability and Relative Permeability in Heterogeneous, Shallow-Shelf Carbonates

    SciTech Connect (OSTI)

    Alan P. Byrnes; Saibal Bhattacharya; John Victorine; Ken Stalder

    2007-09-30

    Thin (3-40 ft thick), heterogeneous, limestone and dolomite reservoirs, deposited in shallow-shelf environments, represent a significant fraction of the reservoirs in the U.S. midcontinent and worldwide. In Kansas, reservoirs of the Arbuckle, Mississippian, and Lansing-Kansas City formations account for over 73% of the 6.3 BBO cumulative oil produced over the last century. For these reservoirs basic petrophysical properties (e.g., porosity, absolute permeability, capillary pressure, residual oil saturation to waterflood, resistivity, and relative permeability) vary significantly horizontally, vertically, and with scale of measurement. Many of these reservoirs produce from structures of less than 30-60 ft, and being located in the capillary pressure transition zone, exhibit vertically variable initial saturations and relative permeability properties. Rather than being simpler to model because of their small size, these reservoirs challenge characterization and simulation methodology and illustrate issues that are less apparent in larger reservoirs where transition zone effects are minor and most of the reservoir is at saturations near S{sub wirr}. These issues are further augmented by the presence of variable moldic porosity and possible intermediate to mixed wettability and the influence of these on capillary pressure and relative permeability. Understanding how capillary-pressure properties change with rock lithology and, in turn, within transition zones, and how relative permeability and residual oil saturation to waterflood change through the transition zone is critical to successful reservoir management and as advanced waterflood and improved and enhanced recovery methods are planned and implemented. Major aspects of the proposed study involve a series of tasks to measure data to reveal the nature of how wettability and drainage and imbibition oil-water relative permeability change with pore architecture and initial water saturation. Focus is placed on carbonate reservoirs of widely varying moldic pore systems that represent the major of reservoirs in Kansas and are important nationally and worldwide. A goal of the project is to measure wettability, using representative oils from Kansas fields, on a wide range of moldic-porosity lithofacies that are representative of Kansas and midcontinent shallow-shelf carbonate reservoirs. This investigation will discern the relative influence of wetting and pore architecture. In the midcontinent, reservoir water saturations are frequently greater than 'irreducible' because many reservoirs are largely in the capillary transition zone. This can change the imbibition oil-water relative permeability relations. Ignoring wettability and transition-zone relative permeabilities in reservoir modeling can lead to over- and under-prediction of oil recovery and recovery rates, and less effective improved recovery management. A goal of this project is to measure drainage and imbibition oil-water relative permeabilities for a large representative range of lithofacies at differ ent initial water saturations to obtain relations that can be applied everywhere in the reservoir. The practical importance of these relative permeability and wettability models will be demonstrated by using reservoir simulation studies on theoretical/generic and actual reservoir architectures. The project further seeks to evaluate how input of these new models affects reservoir simulation results at varying scales. A principal goal is to obtain data that will allow us to create models that will show how to accurately simulate flow in the shallow-structure, complex carbonate reservoirs that lie in the transition zone. Tasks involved to meet the project objectives include collection and consolidation of available data into a publicly accessible relational digital database and collection of oil and rock samples from carbonate fields around the state (Task 1). Basic properties of these rocks and oils will be measured and used in wettability tests. Comparison will be performed between crude and synthetic oil wettability and

  13. Combining environmental chemistry, somatic biomarkers, and population genetics: an innovative approach in wildlife ecotoxicology 

    E-Print Network [OSTI]

    Matson, Cole Wesley

    2004-09-30

    -Fluoranthenes/Pyrenes 17.8 < D.L. 5.9 Benz(a)anthracene 3.8 1.0 32.9 Chrysene 17.70.446.1 C1-Chrysenes 26.2< D.L. 14.1 C2-Chrysenes 20.7< D.L. 9.6 C3-Chrysenes 8.2< D.L. 2.0 C4-Chrysenes 2.2< D.L. 5.0 Benzo(b)fluoranthene 11.0 0.3 57.7 Benzo(k)fluoranthene 1.6 0...: ____________________________ ____________________________ John W. Bickham Theo Colborn (Chair of Committee) (Member) ____________________________ ____________________________ Rodney L. Honeycutt Gilbert T. Rowe (Member) (Member) ____________________________ Robert D. Brown (Head...

  14. Identification of an Archean marine oxygen oasis

    SciTech Connect (OSTI)

    Riding, Dr Robert E; Fralick, Dr Philip; Liang, Liyuan

    2014-01-01

    The early Earth was essentially anoxic. A number of indicators suggest the presence of oxygenic photosynthesis 2700 3000 million years (Ma) ago, but direct evidence for molecular oxygen (O2) in seawater has remained elusive. Here we report rare earth element (REE) analyses of 2800 million year old shallowmarine limestones and deep-water iron-rich sediments at Steep Rock Lake, Canada. These show that the seawater from which extensive shallow-water limestones precipitated was oxygenated, whereas the adjacent deeper waters where iron-rich sediments formed were not. We propose that oxygen promoted limestone precipitation by oxidative removal of dissolved ferrous iron species, Fe(II), to insoluble Fe(III) oxyhydroxide, and estimate that at least 10.25 M oxygen concentration in seawater was required to accomplish this at Steep Rock. This agrees with the hypothesis that an ample supply of dissolved Fe(II) in Archean oceans would have hindered limestone formation. There is no direct evidence for the oxygen source at Steep Rock, but organic carbon isotope values and diverse stromatolites in the limestones suggest the presence of cyanobacteria. Our findings support the view that during the Archean significant oxygen levels first developed in protected nutrient-rich shallow marine habitats. They indicate that these environments were spatially restricted, transient, and promoted limestone precipitation. If Archean marine limestones in general reflect localized oxygenic removal of dissolved iron at the margins of otherwise anoxic iron-rich seas, then early oxygen oases are less elusive than has been assumed.

  15. Carbon Dioxide-Water Emulsions for Enhanced Oil Recovery and Permanent Sequestration of Carbon Dioxide

    SciTech Connect (OSTI)

    Ryan, David; Golomb, Dan; Shi, Guang; Shih, Cherry; Lewczuk, Rob; Miksch, Joshua; Manmode, Rahul; Mulagapati, Srihariraju; Malepati, Chetankurmar

    2011-09-30

    This project involves the use of an innovative new invention ? Particle Stabilized Emulsions (PSEs) of Carbon Dioxide-in-Water and Water-in-Carbon Dioxide for Enhanced Oil Recovery (EOR) and Permanent Sequestration of Carbon Dioxide. The EOR emulsion would be injected into a semi-depleted oil reservoir such as Dover 33 in Otsego County, Michigan. It is expected that the emulsion would dislocate the stranded heavy crude oil from the rock granule surfaces, reduce its viscosity, and increase its mobility. The advancing emulsion front should provide viscosity control which drives the reduced-viscosity oil toward the production wells. The make-up of the emulsion would be subsequently changed so it interacts with the surrounding rock minerals in order to enhance mineralization, thereby providing permanent sequestration of the injected CO{sub 2}. In Phase 1 of the project, the following tasks were accomplished: 1. Perform laboratory scale (mL/min) refinements on existing procedures for producing liquid carbon dioxide-in-water (C/W) and water-in-liquid carbon dioxide (W/C) emulsion stabilized by hydrophilic and hydrophobic fine particles, respectively, using a Kenics-type static mixer. 2. Design and cost evaluate scaled up (gal/min) C/W and W/C emulsification systems to be deployed in Phase 2 at the Otsego County semi-depleted oil field. 3. Design the modifications necessary to the present CO{sub 2} flooding system at Otsego County for emulsion injection. 4. Design monitoring and verification systems to be deployed in Phase 2 for measuring potential leakage of CO{sub 2} after emulsion injection. 5. Design production protocol to assess enhanced oil recovery with emulsion injection compared to present recovery with neat CO{sub 2} flooding. 6. Obtain Federal and State permits for emulsion injection. Initial research focused on creating particle stabilized emulsions with the smallest possible globule size so that the emulsion can penetrate even low-permeability crude oilcontaining formations or saline aquifers. The term ?globule? refers to the water or liquid carbon dioxide droplets sheathed with ultrafine particles dispersed in the continuous external medium, liquid CO{sub 2} or H{sub 2}O, respectively. The key to obtaining very small globules is the shear force acting on the two intermixing fluids, and the use of ultrafine stabilizing particles or nanoparticles. We found that using Kenics-type static mixers with a shear rate in the range of 2700 to 9800 s{sup -1} and nanoparticles between 100-300 nm produced globule sizes in the 10 to 20 ?m range. Particle stabilized emulsions with that kind of globule size should easily penetrate oil-bearing formations or saline aquifers where the pore and throat size can be on the order of 50 ?m or larger. Subsequent research focused on creating particle stabilized emulsions that are deemed particularly suitable for Permanent Sequestration of Carbon Dioxide. Based on a survey of the literature an emulsion consisting of 70% by volume of water, 30% by volume of liquid or supercritical carbon dioxide, and 2% by weight of finely pulverized limestone (CaCO{sub 3}) was selected as the most promising agent for permanent sequestration of CO{sub 2}. In order to assure penetration of the emulsion into tight formations of sandstone or other silicate rocks and carbonate or dolomite rock, it is necessary to use an emulsion consisting of the smallest possible globule size. In previous reports we described a high shear static mixer that can create such small globules. In addition to the high shear mixer, it is also necessary that the emulsion stabilizing particles be in the submicron size, preferably in the range of 0.1 to 0.2 ?m (100 to 200 nm) size. We found a commercial source of such pulverized limestone particles, in addition we purchased under this DOE Project a particle grinding apparatus that can provide particles in the desired size range. Additional work focused on attempts to generate particle stabilized emulsions with a flow through, static mixer based apparatus under a variety

  16. Exploratory and basic fluidized-bed combustion studies. Quarterly report, January-March 1980

    SciTech Connect (OSTI)

    Johnson, I.; Myles, K.M.; Swift, W.M.

    1980-12-01

    This work supports development studies for both atmospheric and pressurized fluidized-bed coal combustion. Laboratory and process development studies are aimed at providing needed information on limestone utilization, removal of particulates and alkali metal compounds from the flue gas, control of SO/sub 2/ and trace pollutants emissions, and other aspects of fluidized-bed combustion. This report presents information on: (1) the development of a limestone utilization predictive methodology, (2) studies of particle breakup and elutriation, (3) basic studies on limestone sulfation enhancement by hydration, (4) studies of the kinetics of the hydration process, and (5) an investigation of various hydration process concepts.

  17. Circulating Fluidized Bed Combustion Boiler Project 

    E-Print Network [OSTI]

    Farbstein, S. B.; Moreland, T.

    1984-01-01

    the bottom of the combustion chamber as bottom ash and from the baghouse as fly ash. A portion of the heat is absorbed in the combustion chamber, and the remaining heat is recovered in the convection section of the boiler. There are no tubes...-sulfur Illinois coal. Limestone use is projected at 11-14.000 tons per year. Solid residue (ash, spent limestone and calcium sulfate) to be disposed will be 15-22,000 tons per year. This projected use of limestone is based on the use of Illinois No. 6 coal...

  18. Geology of the Upper Schep Creek area, Mason County, Texas 

    E-Print Network [OSTI]

    Marshall, Hollis Dale

    1959-01-01

    'adatio&u&1 between the un(erlyin~. " thin"bedded shales and siitstones and the overlying thick-bedded limestonss, and the contac+ is places at the base of the first thick-bedded limestone. At those places where (he uppex bioherm zone is present... that are littered with characteristic thin slabs of weathered limestone. These outcrops have less brushy and more grassy vegetation that shows as Lighter colored areas on the aerial photo- Btt~t~h ~A&~il: fhs lower contac+ with the . 'sn labs limestone is placed...

  19. Coronal electron confinement by double layers

    SciTech Connect (OSTI)

    Li, T. C.; Drake, J. F.; Swisdak, M.

    2013-12-01

    In observations of flare-heated electrons in the solar corona, a longstanding problem is the unexplained prolonged lifetime of the electrons compared to their transit time across the source. This suggests confinement. Recent particle-in-cell (PIC) simulations, which explored the transport of pre-accelerated hot electrons through ambient cold plasma, showed that the formation of a highly localized electrostatic potential drop, in the form of a double layer (DL), significantly inhibited the transport of hot electrons. The effectiveness of confinement by a DL is linked to the strength of the DL as defined by its potential drop. In this work, we investigate the scaling of the DL strength with the hot electron temperature by PIC simulations and find a linear scaling. We demonstrate that the strength is limited by the formation of parallel shocks. Based on this, we analytically determine the maximum DL strength, and also find a linear scaling with the hot electron temperature. The DL strength obtained from the analytic calculation is comparable to that from the simulations. At the maximum strength, the DL is capable of confining a significant fraction of hot electrons in the source.

  20. Severity of iron deficiency anemia and its relationship to growth and morbidity

    SciTech Connect (OSTI)

    Guarda, N.; Pollitt, E.; Viteri, F.

    1986-03-01

    The relationships between severity of iron deficiency anemia, response to iron treatment, respiratory and gastrointestinal illness and weight changes were assessed before (T1) and after (T2) iron therapy. Seventy-five pre-school children from rural Guatemala received daily oral iron (ferrous sulfate 5 mg/kg/day) for eleven weeks, and were classified into one of three groups: (1) severe iron deficient (Hgb < 9.25 g/dl at T1 and > 1g/dl Hgb response (T2-T1) to Fe Rx; (2) moderately iron deficient (Hgb 9.25 g/dl to 11.5 g/dl and T2-T1 > 1g/dl); (3) normal controls (Hgb > 11.5 g/dl and T2-T1 < 1g/dl). When both severely and moderately anemic children were pooled together, there was a statistical significant difference between the number of days ill with gastrointestinal symptoms of these children and those in the control group. Children with T1 Hgb > 11.5 had more days ill than those classified as severely or moderately anemic. There was no other statistically significant associations between initial Hgb levels and morbidity. On the other hand, there was a statistically significant negative correlation between delta (T2-T1) Hgb and number of days ill with gastrointestinal symptoms. All other covariates accounted for the percentage of days ill from gastrointestinal sorbidity, decreased approximately 1% for each 1% increase in delta Hgb.

  1. MODELING POTENTIAL IMPACTS OF SO2 CO-INJECTED WITH CO2 ON THE KNOX GROUP, WESTERN KENTUCKY

    SciTech Connect (OSTI)

    Zhu, Junfeng; Harris, David; Leetaru, Hannes

    2014-09-30

    Understanding potential long-term impacts of CO2 impurities, such as sulfur and nitrogen compounds, on deep carbon storage reservoirs is of considerable interest because co-injection of the impurities with CO2 can bring significant economic and environmental benefits. The Cambrian–Ordovician Knox Group, a thick sequence of dolostone (Beekmantown Dolomite) with minor dolomitic sandstone (Gunter Sandstone), in western Kentucky, USA, has been evaluated as a prospective CO2 sequestration target. In this study, TOUGHREACT was used to build 1-D radial models to simulate the potential impacts of co-injected CO2 and SO2 on minerals, pore fluids, and porosity and permeability in the Beekmantown Dolomite and the Gunter Sandstone. Co-injection of a mass ratio of 2.5 percent SO2 and 97.5 percent CO2, representative of flue gas from coal-fired plants, was simulated and the co-injection simulations were compared to models with CO2 only injections. The model results suggest that the major impacts of added SO2 for both the Beekmantown and the Gunter rocks were significant enhancement of dissolution of dolomite and precipitation of anhydrite, leading to noticeable increases in porosity and permeability. The Gunter Sandstone appeared to be more active with SO2 than the Beekmantown Dolomite. More dolomite was dissolved in the Gunter than in the Beekmantown with the same SO2 impurity. Consequently, porosity was raised more in the Gunter than in the Beekmantown. On the other hand, the impacts on aluminosilicate minerals appeared to be insignificant in both reservoirs, slightly changing the rates of precipitation/dissolution but the overall reaction paths remained the same.

  2. Three body kinematic endpoints in SUSY models with non-universal Higgs masses.

    E-Print Network [OSTI]

    Lester, Christopher G; Parker, Michael A; White, Martin J

    ˜L, c˜L) ? g˜q 1.5% (u˜R, c˜R) ? g˜q 2.3% g˜ ? ?˜±1 qq¯ 6.8% (u˜L, c˜L) ? ?˜+1 q 63% g˜ ? ?˜01qq¯ 2.2% (u˜L, c˜L) ? ?˜+2 q 2.5% g˜ ? ?˜02qq¯ 3.4% (d˜L, s˜L) ? ?˜01q 2.1% (d˜R, s˜R) ? ?˜01q 98% (d˜L, s˜L) ? ?˜02q 30% (d˜R, s˜R) ? ?˜02q 1% (d˜L, s˜L) ? ?...

  3. Energy Efficiency Improvement Opportunities for the Cement Industry

    E-Print Network [OSTI]

    Worrell, Ernst

    2008-01-01

    Emissions from the Global Cement Industry, Annual Review ofThe Use of Limestone in Portland Cement: a State- of-the-Review, Skokie, IL: Portland Cement Association. Dolores, R.

  4. Evaluation of High Solids Alkaline Pretreatment of Rice Straw

    E-Print Network [OSTI]

    Cheng, Yu-Shen; Zheng, Yi; Yu, Chao Wei; Dooley, Todd M.; Jenkins, Bryan M.; VanderGheynst, Jean S.

    2010-01-01

    19. Oates, J. A. H. (2007). Lime and Limestone 207–211. 20.1–28. 41. Kim, S. H. (2005). Lime pretreatment and enzymaticunwashed biomass. Keywords Lime . Calcium hydroxide . Sodium

  5. Depositional facies and environments of the lower Mineral Wells formation, Pennsylvanian Strawn group, north central Texas 

    E-Print Network [OSTI]

    Bradshaw, Susan Elizabeth

    1996-01-01

    , black mudstones with phosphate nodules, and limestones. The prodelta facies is largely nonfossiliferous and consists of massive mudstones, massive silty mudstones with occasional siltstone lenses, and horizontal planar-and lenticular-laminated muddy...

  6. Dissolved inorganic carbon in soil and shallow groundwater, Konza Prairie LTER Site, NE Kanas, USA

    E-Print Network [OSTI]

    Tsypin, Mikhail

    2011-12-31

    Sources and seasonal trends of dissolved inorganic carbon (DIC) in a shallow limestone aquifer were studied for 1 year at the Konza Prairie LTER (Long-Term Ecological Research) Site in northeastern Kansas, from spring 2010 to spring 2011. Annual...

  7. first make a wise choice, install the tree correctly then avoid common pruning errors.

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    a deep, well developed root system is unlikely to develop (e.g., on exposed Miami limestone which favors hole, and ultimately stability of the tree is improved by digging 4-6 equally spaced trenches radiating

  8. Landform Design Vancouver, BC Oct 2012 BGC Engineering Inc 1

    E-Print Network [OSTI]

    Boisvert, Jeff

    of coal/limestone/salt ­ Melting of permafrost ­ Crustal deformation ­ Mining of metallic ores large areas, it may be immediate or delayed for many years (SME, 1992). Drilling rid being retrieved

  9. Cause of Subsidence Modeling, monitoring and mitigation

    E-Print Network [OSTI]

    Boisvert, Jeff

    of coal/limestone/salt ­ Melting of permafrost ­ Crustal deformation ­ Mining of metallic ores large areas, it may be immediate or delayed for many years (SME, 1992). Drilling rid being retrieved

  10. Three-dimensional displacement-length scaling and maximum dimension of normal faults in layered rocks

    E-Print Network [OSTI]

    and Scholz, 2000], (2) linkage [e.g., Cartwright et al., 1995] or (3) variations in rock properties [Bu on a 30­70° dipping bedding plane of early Maestrichtian continental limestone in the lignite quarry from

  11. The effect of drainage reorganization on paleoaltimetry studies: An example from the Paleogene Laramide foreland

    E-Print Network [OSTI]

    Davis, SJ; Wiegand, BA; Carroll, AR; Chamberlain, CP

    2008-01-01

    microfossils of the oil shale of the Green River Formationinterbedded limestone, marl, oil shale (kerogen-rich marl)is delineated by oil shale and tuff of the Mahogany Zone

  12. SOIL TEST INTERPRETATIONS RECOMMENDATIONS HANDBOOK

    E-Print Network [OSTI]

    Noble, James S.

    1 SOIL TEST INTERPRETATIONS AND RECOMMENDATIONS HANDBOOK Originally written 1983 By Daryl D..................................................20 SOIL ACIDITY AND LIMESTONE...............................................27 EXCHANGEABLE MAGNESIUM No. Page No. I. Nitrogen rate adjustments based upon soil texture, organic matter, and time of major

  13. Pinch valves fight clogging, leaking and wear in FGD systems

    SciTech Connect (OSTI)

    Schneider, L.

    1982-12-01

    Pinch valves can provide a non-sticking, non-leaking, low maintenance system capable of controlling the flow of abrasive limestone slurries such as are found in flue gas desulphurisation units.

  14. Characterization of Rodessa Formation Reservoir (Lower Cretaceous) in Van Field, Van Zandt County, Texas 

    E-Print Network [OSTI]

    Triyana, Yanyan

    2004-09-30

    limestone and sandstone have been altered significantly by diagenetic processes that include micritization, cementation, dissolution, neomorphism and compaction. Dissolution is the main factor that resulted in enhanced porosity and permeability while...

  15. Curriculum Vitae SCOTT MICHAEL FITZPATRICK

    E-Print Network [OSTI]

    Pacific Rim, Circum-Caribbean limestone and coralline environments public archaeology and education ­ Environmental Science Institute, University of Oregon 2012-pr. Associated Faculty ­ Center for Asian and Pacific, Fundamentals of Archaeological Research, Island Archaeology, Pacific Islands Archaeology, Psychoactive

  16. Sandgrouse 30 (2008)190 Recent surveys of resident breeding birds in

    E-Print Network [OSTI]

    Nottingham, University of

    2008-01-01

    dunes, a central limestone plateau, and high altitude igneous rock mountains in the south. Southern cultivate gardens containing fruit and olive trees and vegetables in various wadis. This natural resource, in the form of coastal resorts such as

  17. The passivation of calcite by acid mine water. Column experiments with Fe(III)- SO4-H+ and Fe(III)-Cl-H+ solutions at pH 2

    E-Print Network [OSTI]

    Boi, Marco

    2010-01-01

    reacted with acid-mine drainage in a pulsed limestone bedriver affected by acid mine drainage: the Odiel River (Southfor passive treatment of acid mine drainage with high Al and

  18. Operation of water supply reservoirs for flood mitigation : hydrologic and institutional considerations 

    E-Print Network [OSTI]

    Craney, Patrick Wayne

    1996-01-01

    of water supply storage for flood control purposes. Lake Limestone in Central Texas serves as the case study. The highly variable conditions of the watershed commonly exhibit both hydrologic extremes, floods and droughts. The agency responsible...

  19. What AreWetlands? Wetlands are areas of land that are

    E-Print Network [OSTI]

    George, Edward I.

    for farming and mining of iron ore and limestone. 1892 Floodplain purchased by John and Lydia Morris to add Physocarpus opulifolius common ninebark Vernonia novaboracensis iron weed Look and listen for these local

  20. A.E. Stewart 

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    measured for Berea sandstone and Indiana limestone during triaxial compression tests. The axial permeability of fractured Westerly granite specimens was also measured during hydrostatic compression tests. Acoustic emission (AE) monitoring was performed...

  1. Experimental Study on Rock Deformation and Permeability Variation 

    E-Print Network [OSTI]

    Ding, Jihui

    2013-08-01

    measured for Berea sandstone and Indiana limestone during triaxial compression tests. The axial permeability of fractured Westerly granite specimens was also measured during hydrostatic compression tests. Acoustic emission (AE) monitoring was performed...

  2. Geoarchaeological Investigations in the Upper Neosho River basin, Eastern Kansas

    E-Print Network [OSTI]

    Gottsfield, Andrew Stefan

    2008-11-19

    Argiustolls Kenoma hillslopes on uplands Pre-Holocene alluvial sediments Fine, smectitic, thermic Vertic Argiudolls Labette hillslopes on uplands residuum from limestone and shale Fine, mixed, mesic Udic Argiustolls Lula hillslopes on uplands residuum from...

  3. Investigation of the benefits of carbonate cementation due to addition of low percentage of hydrated lime in the base courses of pavements 

    E-Print Network [OSTI]

    Bhuiyan, Jasim Uddin

    1994-01-01

    Texas, limestone and caliche soil, were tested extensively to examine the effect of carbonate cementation due to the addition of small percentages of lime. Testing included mineralogical analysis of the two materials, strength analysis in terms of texas...

  4. Paleoenvironmental analysis of biohermal facies, Mississippian Lake Valley formation, northern Sacramento Mountains, New Mexico 

    E-Print Network [OSTI]

    Reed, Roy Edwin

    1982-01-01

    Devonian strata and consists of 15 to 60 feet of interbedded, gray, nodular, argillaceous limestone and soft, light gray, calcareous shale thinning southward (Laudon and Bowsher, 1949; and Pray, 1961). The Andrecito Member of the Lake Valley Formation... consists of calcareous shale, thinly-bedded argillaceous limestone, well-sorted crinoidal calcarenites, and thin quartzose siltstone. The unit is 20 to 35 feet thick and thins southward (Pray, 1961). The Alamogordo Member is a medium gray, cherty...

  5. Geology of the West Mason area, Texas 

    E-Print Network [OSTI]

    Polk, Ted Pritchard

    1952-01-01

    Creek limestone bedding following page 26 XI. Point Peak thin bedded shales. following page 29 XII. Point Peak shale beds and small bioherms. . following page 29 XIII. Fig. 1: Point Peak reef structure Fig. Z: Point Peak bioherm and "cabbage heads..." following page 29 XIV. Fig. 1: Point Peak bioherrn and bedding. . . following page 29 Fig. 2: Point Peak weathered out bioherrns XV. Point Peak shale bench. . following page 29 XVI. Fig. 1; San Saba limestone bedding on weathered slope. Fig. 2: San...

  6. Depth-gradient analysis of the Colony Creek Cycle (late Pennsylvanian) of north Texas 

    E-Print Network [OSTI]

    Kennedy, Noel Lynne

    1986-01-01

    Chairman of Advisory Coamittee: Dr. Thomas E. Yancey Late Pennsylvanian depositional cycles consisting of transgres- sive and regressive sequences, and containing thin limestones overlain by thick shales which are in turn overlain by sandstones and... and the Colorado River valley, and has a similar vertical stratigra- phic succession of lithologies in both areas. This succession consists of 1) a thin transgressive limestone, 2) phosphatic dark shale, 3) gray shales with abundant fossils, 4) mixed shale...

  7. RENAL SYSTEM DEVELOPMENT IN THE ZEBRAFISH: A BASIC NEPHROGENESIS MODEL

    E-Print Network [OSTI]

    Tank, Jennifer L.

    -diethylaminobenzaldehyde DL distal late dpi days post injection DSB double-stranded break ESRD end-stage renal disease HDR homology directed repair hpf hours post fertilization IM intermediate mesoderm indels insertion or deletion

  8. Passive intrinsic-linewidth narrowing of ultraviolet extended-cavity diode laser by weak optical feedback

    E-Print Network [OSTI]

    Samutpraphoot, Polnop

    We present a simple method for narrowing the intrinsic Lorentzian linewidth of a commercial ultraviolet grating extended-cavity diode laser (TOPTICA DL Pro) using weak optical feedback from a long external cavity. We achieve ...

  9. Archaeology 2.0: New Approaches to Communication and Collaboration

    E-Print Network [OSTI]

    Kansa, Eric C.; Kansa, Sarah Whitcher; Watrall, Ethan

    2011-01-01

    ACM Conference on Digital Libraries (DL ’98), ed. I. Witten,Personal Data in a Large Digital Library. Proceedings of theAdvanced Technology for Digital Libraries. Retrieved from

  10. TOP500 Supercomputers for June 2004

    E-Print Network [OSTI]

    Strohmaier, Erich; Meuer, Hans W.; Dongarra, Jack; Simon, Horst D.

    2004-01-01

    Infiniband Integrity Superdome, 1.5 GHz, HFabric xSeriesDL140 Xeon 3.06 GHz, Myrinet Integrity Superdome, 1.5 GHz,HPlex Integrity Superdome, 1.5 GHz, HPlex Integrity

  11. Normal Distribution

    E-Print Network [OSTI]

    User

    NORMAL DlSTRlBUTION TABLE. Entries represent the area under the standardized normal distribution from -w to z, Pr(Z

  12. Lithium Ion Electrode Production NDE and QC Considerations

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

    J. Li, R. Born, L.C. Maxey, R.B. Dinwiddie, C. Daniel, and D.L. Wood, "Non-destructive evaluation of slot-die-coated lithium secondary battery electrodes by in-line laser...

  13. MIT Plasma Science & Fusion Center: research, alcator, publications...

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

    Winslow, D.L. - Edge Fluctuation Measurements with a Triple Probe on Alcator C-Mod, FRC, Univ. of TX Elder, J.D. - Univ. of Toronto Poster PDF (4.9MB) Terry, J.L. -...

  14. ANALYSIS OF THE CALIFORNIA ENERGY INDUSTRY

    E-Print Network [OSTI]

    Authors, Various

    2010-01-01

    I! ~J q 5B OFFSHORE Oil PRODUCTION-lOWER ~8 (~ MB/Dl lCW-G""to diminished expenditures for offshore oil production sinceoffshore oil production is expected to peak by 1990, and in

  15. Towards Instance Query Answering for Concepts Relaxed by Similarity Measures Andreas Ecke

    E-Print Network [OSTI]

    Baader, Franz

    `cfAED' Partially supported by DFG in the Collaborative Research Cen- ter 912 "Highly Adaptive Energy-Efficient. A particular DL is characterized by a set of concept construc- tors, which allow to build complex concept

  16. Modeling of Energy Production Decisions: An Alaska Oil Case Study

    E-Print Network [OSTI]

    Leighty, Wayne

    2008-01-01

    and Weimer, D.L. (1984) Oil prices shock, market response,OPEC behavior and world oil prices (pp. 175-185) London:many decades. Recent high oil prices have caused oil-holding

  17. Physical mapping resources for large plant genomes: radiation hybrids for wheat D-genome progenitor Aegilops tauschii

    E-Print Network [OSTI]

    2012-01-01

    0.76 2DL9-0.76-1.00 Radiation hybrid map BE445242 BE497494BE404371 Figure 7 A radiation hybrid map of chromosome 2D (resolution comparative radiation hybrid map as a framework

  18. Soil Organic Carbon Storage and Aggregate Stability in an Arid Mountain Range, White Mountains, CA

    E-Print Network [OSTI]

    Frisbie, Juanita Aapris

    2014-01-01

    D.L. 1989. Responses of Mountain Big Sagebrush to inducedgradient in the Gongga Mountain on the Tibetan plateau. J.relationships in an arid mountain range, Mojave Desert,

  19. ILDS

    Energy Science and Technology Software Center (OSTI)

    003176IBMPC00 Intelligent Leak Detection System  https://www.dropbox.com/sh/aycss2bffzmur10/AAAJvqH8IKmrA93kngsAy45qa?dl=0 

  20. Strategic Plan 2014 2019 Open Forum October 3, 2014

    E-Print Network [OSTI]

    Strategic Plan 2014 ­ 2019 Open Forum October 3, 2014 #12;Broad University Representation ­ Faculty, Staff, Students Strategic Plan Steering Committee Steering Committee Members M'Hammed Abdous (DL Economic Development and Entrepreneurship Community Engagement Strategic Planning Topic Committees Included

  1. Language experience shapes early electrophysiological responses to visual stimuli: The effects of writing system, stimulus length, and presentation duration

    E-Print Network [OSTI]

    Xue, G; Xue, G; Xue, G; Jiang, T; Chen, C; Dong, Q

    2008-01-01

    1563. Gauthier, I. , Curran, T. , Curby, K.M. , Collins,J.W. , Sheinberg, D.L. , Curran, T. , 2006. A reevaluation341, 45–48. Tanaka, J.W. , Curran, T. , 2001. A neural basis

  2. Estimating hydraulic conductivity for the Martian subsurface based on drainage patterns --A case study in the Mare Tyrrhenum Quadrangle

    E-Print Network [OSTI]

    Luo, Wei

    gradient: q = -K dh dl ; ð1Þ where q is the volumetric groundwater flow rate per unit area (or flux); K different hydraulic gradients in the laboratory (Daniel, 1994), by conducting pumping tests in the field

  3. Gas flux and carbonate occurrence at a shallow seep of thermogenic natural gas

    E-Print Network [OSTI]

    2010-01-01

    DL (2008) Disentangling oil weathering at a marine seepAbstract The Coal Oil Point seep field located offshorethe thermo- genic gas and oil seeps located near Coal Oil

  4. Central Valley Salmon: A Perspective on Chinook and Steelhead in the Central Valley of California

    E-Print Network [OSTI]

    Williams, John G.

    2006-01-01

    Management 24:198-210. Marr, DHA. 1965. The influence ofSociety 3(XVII):33. Marr, DHA. 1963. The influence ofBB, Scarnecchia, DL, La Marr, TJ. 1994. Summer distribution

  5. Licensing stop place before laterals : a study of acoustic cues relevant to the perception of stop-lateral sequences

    E-Print Network [OSTI]

    Michaels, Jennifer M. (Jennifer Marie)

    2011-01-01

    In phonological analyses of both adult and child language, a *dl constraint has frequently been used as a shorthand to indicate that coronal stops are dispreferred before laterals (Dinnsen et al. 2001). This dispreference ...

  6. Relationship between beta-cell mass and fasting blood glucose concentration in humans

    E-Print Network [OSTI]

    Ritzel, Robert A; Butler, Alexandra E; Rizza, Robert A; Veldhuis, Johannes D; Butler, Peter C

    2006-01-01

    Between ?-Cell Mass and Fasting Blood Glucose Concentrationnondiabetic, had impaired fasting glu- cose, or had type 26.9 kg/m 2 ), had impaired fasting glucose (?110 mg/dl [6.1

  7. EROSION-CORROSION-WEAR PROGRAM

    E-Print Network [OSTI]

    Levy, Alan V.

    2013-01-01

    MD, Oct. 1979. dl. Oil Shale Retort Components" A. Levy andCorrosion of Metals in Oil Shale Retorts,'' AS! v! WESTEC 'of metals in coal and oil shale conver- sion environments

  8. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    al No abstract prepared. August 2007 The Sloan Digital Sky Survey Monitor Telescope Pipeline Tucker, D.L. ; Kent, S. ; Richmond, M.W. ; Annis, J. ; Smith, J.A. ; Allam, S.S. ;...

  9. Ms. Maria Galanti Site Coordinator

    Office of Environmental Management (EM)

    REPORT FOR PHASES I AND II OF THE REMOVAL OF THE X-760 CHEMICAL ENGINEERING BUILDING AT THE PORTSMOUTH GASEOUS DIFFUSION PLANT, PIKETON, OHIO (DOEPPPO03-0196&Dl)...

  10. An Extended Evaluation of the Readability of Tapered, Animated, and Textured Directed-Edge Representations in Node-Link Graphs

    E-Print Network [OSTI]

    Isenberg, Petra

    arrow ­ S, (b) tapered ­ T, (c) dark-to-light ­ DL (a.k.a intensity ­ I), (d) light-to-dark ­ LD, (e- net. Graphs represent a collection of elements ­ called vertices or nodes ­ as well as the connections

  11. Comparing SNePS with Topbraid/Pellet SNeRG Technical Note 42

    E-Print Network [OSTI]

    Shapiro, Stuart C.

    Comparing SNePS with Topbraid/Pellet SNeRG Technical Note 42 Michael Kandefer and Stuart C. Shapiro Editing Tool (Top Quadrant Inc. 2007) using the Pellet OWL DL Reasoner (Clark & Parsia, LLC 2007

  12. An Asymptotic Numerical Method for Inverse Elastic Shape Design Changxi Zheng

    E-Print Network [OSTI]

    Grinspun, Eitan

    ]: Computational Geom- etry and Object Modeling--Physically based modeling; Keywords: elastic fabrication, 3D printing, finite element methods, nonlinear optimization Links: DL PDF VIDEO CODE 1 Introduction Elastic

  13. The experiencing of the Wayuu lucha in a context of uncertainty : : Neoliberal multiculturalism, political subjectivities, and preocupación in La Guajira, Colombia

    E-Print Network [OSTI]

    Ferrero Botero, Esteban

    2013-01-01

    My conversations with Dora Luz’s exemplify this well, DL:Personal Interview). For Dora Luz, it is a similar case,Julia, Carlos, Dora Luz, Francia, Constanza, Patricia,

  14. Alterations in the vimentin cytoskeleton in response to single impact load in an in vitromodel of cartilage damage in the rat

    E-Print Network [OSTI]

    Henson, Frances M D; Vincent, Thea A

    2008-06-24

    articular cartilage: structure and distribution of actin, tubulin, and vimentin fil- aments. J Histochem Cytochem 2000, 48(10):1307-1320. 13. Lee DA, Knight MM, Bolton JF, Idowu BD, Kayser MV, Bader DL: Chondrocyte deformation within compressed agarose con...

  15. Controls over ozone deposition to a high elevation subalpine forest

    E-Print Network [OSTI]

    Turnipseed, AA; Burns, SP; Moore, DJP; Hu, J; Guenther, AB; Monson, RK

    2009-01-01

    D.L. , Fehsenfeld, F.C. , 1986b. Background ozone andanthropogenic ozone enhancement at Niwot Ridge, Colorado.Day-time variations of ozone eddy ?uxes to maize. Boundary-

  16. Approach to Management of Intravascular Missile Emboli: Review of the Literature and Case Report

    E-Print Network [OSTI]

    Lu, Kevin; Gandhi, Sanjay; Qureshi, Moqueet Arshad; Wright, Andrew S.; Kantathut, Narongrit; Noeller, Thomas P.

    2015-01-01

    A, Drugas GT. Air gun pellet embolization to the rightS, Ropohl D, Bohnert M. Pellet embolization to the rightScharf DL. Delayed shotgun pellet migration to of Retained

  17. Composition of Dioxin-like PCBs in Fish: An Application for Risk

    E-Print Network [OSTI]

    Jackson, Don

    Composition of Dioxin-like PCBs in Fish: An Application for Risk Assessment S A T Y E N D R A P . B in Aroclors and that toxicity varies considerably among the congeners with dioxin-like PCBs (dl

  18. Evaluation and Interconversion of Various Indicator PCB Schemes for PCB and Dioxin-Like PCB Toxic Equivalent Levels in Fish

    E-Print Network [OSTI]

    Arhonditsis, George B.

    Evaluation and Interconversion of Various Indicator PCB Schemes for PCB and Dioxin-Like PCB ToxicPCB schemes in estimating total of PCB congeners (PCB) and dioxin-like PCB toxic equivalent (dl

  19. Effects of calcium carbonate particulate releasing surgical anchors on bone and tendon healing

    E-Print Network [OSTI]

    Medeiros, Jordan-Ryan J. I. K

    2007-01-01

    The Calaxo ® screw, developed by Smith and Nephew, is a novel biomedical composite composed of poly-DL-lactide-co-glycolide (PLLA:PGA) 85:15 and calcium carbonate particulates. Comparisons to an identical surgical anchor ...

  20. Covalent Bonding in Actinide Sandwich Molecules

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

    by: S.G. Minasian (Los Alamos National Laboratory and Berkeley Lab); J.M. Keith, E.R. Batista, K.S. Boland, D.L. Clark, S.A. Kozimor, and R.L. Martin (Los Alamos National...

  1. Recruitment of BAD by the Chlamydia trachomatis vacuole correlates with host-cell survival

    E-Print Network [OSTI]

    2006-01-01

    296: 2345–2347. Vaux DL, Hacker G, Strasser A (1994) AnSF, Schwarz C, Vier J, Hacker G (2001) Characterization ofSF, Harlander T, Vier J, Hacker G (2004) Protection against

  2. Investigating Dual Language Models: A Case Study 

    E-Print Network [OSTI]

    Luevanos-Clemente, Ruby Nicole

    2014-09-26

    The general purpose of this research was to identify the characteristics, along with differences, of the dual language (DL) programs in elementary schools in two central schools in Texas. A secondary purpose was to analyze test scores over time...

  3. A's-1.x.

    E-Print Network [OSTI]

    {ram 242% for ?nding the dl?nm'ex sfpl?c'ef, be my erre twiz'c, yew t/mce ?; march .... elme?: jet in the hooker ef Newgtttim that are we]? eemmet: et-. mettg?' 'Et?

  4. Fabrication of Controlled Release Devices Using Supercritical Antisolvent Method

    E-Print Network [OSTI]

    Lee, Lai Yeng

    In this study, the supercritical antisolvent with enhanced mass transfer method (SASEM) is used to fabricate micro and nanoparticles of biocompatible and biodegradable polymer PLGA (poly DL lactide co glycolic acid). This ...

  5. Test particle simulations of the effect of moving DLs on ion outflow in the auroral downward-current region

    E-Print Network [OSTI]

    Carlson, Charles W.

    -current region from the classical ion-pressure cooker picture. In the moving DL model, a majority of out dynam- ics by reducing the cross-polar cap potential and by acting as an energy sink of the solar wind

  6. A list with links to preprints and web sites may be found at http://space.mit.edu/~jonathan/research.html Publications of Jonathan Gelbord, Ph.D.

    E-Print Network [OSTI]

    Gelbord, Jonathan

    . Gehrels, J. Homan, J.P. Osborne, M. Siegel, A. Beardmore, P. Handbauer, J.M. Gelbord, et al., 2012. "Swift.M. Worrall, D.L. Jauncey, D.A. Schwartz, H.L. Marshall, J.M. Gelbord, and E.S. Perlman, 2012. "Periodic.V. Bicknell, J.E.J. Lovell, D.L. Jauncey, J.M. Gelbord, D.A. Schwartz, E.S. Perlman, H.L. Marshall, M

  7. 2015.6-CiNii Articles Web of Science [] Web of Science CORE COLLECTION

    E-Print Network [OSTI]

    Goda, Keisuke

    ://www.dl.itc.u-tokyo.ac.jp/gacos/index.html OPAC CiNii Articles Web of Science CiNii Articles;2015.6- CiNii Articles Web of Science [] 5 GACoS SSL-VPN Gateway or GW () http://www.dl.itc.u-tokyo.ac.jp/gacos/faq/gakugai.html2015.6- CiNii Articles Web of Science [] 1 Web of Science CORE COLLECTION OKhttp

  8. Oil and Gas Exploration

    E-Print Network [OSTI]

    Tingley, Joseph V.

    , oil and gas, and geothermal activities and accomplishments in Nevada: production statistics Products 23. Sloan dolomite quarry 24. Weiser gypsum quarry Oil Fields 1. Blackburn field 2. North WillowMetals Industrial Minerals Oil and Gas Geothermal Exploration Development Mining Processing Nevada

  9. OCEAN DRILLING PROGRAM CUMULATIVE INDEX GEOGRAPHIC AND SITE INDEX 1AABW Africa SW

    E-Print Network [OSTI]

    OCEAN DRILLING PROGRAM CUMULATIVE INDEX GEOGRAPHIC AND SITE INDEX 1AABW · Africa SW A AABW. See Antarctic Bottom Water AAIW. See Antarctic Intermediate Water Abaco event, geology, 101B27:428­430; 29:1­19 organogenic dolomites, 175B15:1­17 pore water, 175A20:547­553 #12;OCEAN DRILLING PROGRAM CUMULATIVE INDEX

  10. American Journal of Science DECEMBER 2003

    E-Print Network [OSTI]

    Kaufman, Alan Jay

    for this unit and 13 C values ranging from 5.6 to 7.4 permil (n 69). At present, we find no evidence in Brazil, QUADRILA´TERO FERRI´FERO (IRON QUADRANGLE), BRAZIL: A STRATIGRAPHIC RECORD OF EARLY PROTEROZOIC ATMOSPHERIC Supergroup, Brazil and consists of red carbonate facies BIF grading upsection into buff dolomites

  11. EVIDENCE AGAINST THE ALLOCHTHONOUS NATURE OF THE STANBRIDGE NAPPE AT HIGHGATE GORGE, NORTHWESTERN VERMONT

    E-Print Network [OSTI]

    Kidd, William S. F.

    . This contrasts with the conclusions reached by workers in southern Quebec, where this sequence is inferred of the Laurentian shelf sequence (the Milton Dolomite in Quebec, which is in part equivalent to the Gorge Formation) THE STANBRIDGE NAPPE OF SOUTHERN QUEBEC Adjacent to the International Border, in southern Quebec (Figure 1

  12. 2009 CRA -REFERENCES Bachman, George O. 1985. Assessment of Near-Surface Dissolution At and Near the Waste

    E-Print Network [OSTI]

    At and Near the Waste Isolation Pilot Plant (WIPP), Southeastern New Mexico, SAND84-7179, Albuquerque, New.D., 1983, Waste Isolation Pilot Plant (WIPP) Site Gravity Survey and Interpretation: SAND82-2922, p.113. Beauheim, R.L, 1987. Interpretation of the WIPP-13 Multipad Pumping Test of the Culebra Dolomite

  13. PEER-REVIEWED PUBLICATIONS: Land, L. S., 1964, Eolian cross-bedding in the beach dune environment, Sapelo Island, Georgia.

    E-Print Network [OSTI]

    Yang, Zong-Liang

    , Sedimentation in a meandering estuary. Sedimentology, v. 6, p. 191-207. Land, L. S., 1966, Diagenesis from a fossil water table. Sedimentology, v. 14, p. 175-185. Land, L. S., and Epstein, S., 1970, Late Pleistocene diagenesis and dolomitization, North Jamaica. Sedimentology, v. 14, p. 184-200. Land, L. S

  14. The calcite !! aragonite transformation in low-Mg marble: Equilibrium relations, transformation mechanisms, and rates

    E-Print Network [OSTI]

    Hacker, Bradley R.

    mechanisms, and rates Bradley R. Hacker,1 David C. Rubie,2 Stephen H. Kirby,3 and Steven R. Bohlen4 Received in Japan and China that disproportionated to low-Mg calcite and dolomite. Citation: Hacker, B. R., D. C starting material is a single block of Carrara marble obtained from a monument company [Hacker and Kirby

  15. Improved oil recovery in Mississippian carbonate reservoirs of Kansas - near term -- Class 2. Quarterly progress report, July 1, 1995--September 30, 1995

    SciTech Connect (OSTI)

    Carr, T.; Green, D.W.; Willhite, G.P.

    1995-11-01

    The objective of this project is to demonstrate incremental reserves from Osagian and Meramecian dolomite reservoirs in western Kansas through application of reservoir characterization to identify areas of unrecovered mobile petroleum. Specific reservoirs targeted are the Schaben Field in Ness County and the Bindley Field in Hodgeman County.

  16. APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 0099-2240/97/$04.00 0

    E-Print Network [OSTI]

    Morel, François M. M.

    sediments (28), the formation of placer gold (30), and the precipitation of dolomite at low tempera- tures of the microbial world has expanded in recent years with the discoveries that microbes can use a variety environments, such as geothermal res- ervoir fluids and hot springs, and has been assumed to be abiotic (7). We

  17. We are very curious karst type of landscape where rocks are

    E-Print Network [OSTI]

    Borissova, Daniela

    are speleological objects related to karst phenomena. During rain season, as a result, water pours out of them of dolomite & calcium carbonate soluble in water. Because of that, water goes through the ground to the impermeable layer and is mostly located in karst's underground. Water shapes various karst phenomena. · Dinara

  18. Effect of tebuthiuron on growth and forage quality of selected grasses 

    E-Print Network [OSTI]

    Masters, Robert Andrew

    1981-01-01

    CD N c0 O c0 I/! I/I D al cd a! 0 O 0 '0 I I I al at Ch O N W I dl V C 0 ID ID O Cl CO CO 'Ct I O I Ch Ch I Ct D 0! '0 at CD cd Cl I Cl I O Ch I/I Cl 0' ca 0 Cl CO I tld ) 0 V tN a! C 0! Cl u 8 3 H C 0... Dd N cdO C Cd CD Cl 0! DD Z cdu '0 tD IJ ttl dl 00 Sw E~ I S S S vl DL 0 0 'tj p S C H S S 00 4 S P Vl C 4 g N 0 0?00 E S ta tfl S 0 p 00 dl 4 al 4 S t 4 0 0 W 00 'Q E td Vl I 0 3 00 4 S dl 3 P 4 0 Q tll C 0 S 4 00 dl...

  19. The influence of various pruning levels on the production and quality of six Vitis vinifera (L.) grape varieties in Pecos County, Texas 

    E-Print Network [OSTI]

    Williams, Charles David

    1985-01-01

    ' C 00 5 C'0 4 rl& CLJJ S 01 W LI I W C 10 SJ '4 4LIS dl W 0 cd W 00 JJ S cd 00 cd W W 400 0 SCCc S O C ID "0 W W S Vl S S '0 0 SW Rl O Cd 00 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I... IXI JJ S S4 410 IU JJJO QO E J000 00 C C C S~ 00 C 4 ld C IU 4JJ S 0. th ) cd S S LIH 0 C0'0S dl C S cd 00 S 00 W S W 4 dl C QJO 0 N) E C cd 3 00 W '0 0c-I 4 ql S I CJI JJ 6 Q 0 )SIJJ lU S W S C 00 I S Q ld dl JO I dlEQS A5)C3 9 C dl I...

  20. The Bakken-An Unconventional Petroleum and Reservoir System

    SciTech Connect (OSTI)

    Frederick Sarg

    2011-12-31

    An integrated geologic and geophysical study of the Bakken Petroleum System, in the Williston basin of North Dakota and Montana indicates that: (1) dolomite is needed for good reservoir performance in the Middle Bakken; (2) regional and local fractures play a significant role in enhancing permeability and well production, and it is important to recognize both because local fractures will dominate in on-structure locations; and (3) the organic-rich Bakken shale serves as both a source and reservoir rock. The Middle Bakken Member of the Bakken Formation is the target for horizontal drilling. The mineralogy across all the Middle Bakken lithofacies is very similar and is dominated by dolomite, calcite, and quartz. This Member is comprised of six lithofacies: (A) muddy lime wackestone, (B) bioturbated, argillaceous, calcareous, very fine-grained siltstone/sandstone, (C) planar to symmetrically ripple to undulose laminated, shaly, very fine-grained siltstone/sandstone, (D) contorted to massive fine-grained sandstone, to low angle, planar cross-laminated sandstone with thin discontinuous shale laminations, (E) finely inter-laminated, bioturbated, dolomitic mudstone and dolomitic siltstone/sandstone to calcitic, whole fossil, dolomitic lime wackestone, and (F) bioturbated, shaly, dolomitic siltstone. Lithofacies B, C, D, and E can all be reservoirs, if quartz and dolomite-rich (facies D) or dolomitized (facies B, C, E). Porosity averages 4-8%, permeability averages 0.001-0.01 mD or less. Dolomitic facies porosity is intercrystalline and tends to be greater than 6%. Permeability may reach values of 0.15 mD or greater. This appears to be a determinant of high productive wells in Elm Coulee, Parshall, and Sanish fields. Lithofacies G is organic-rich, pyritic brown/black mudstone and comprises the Bakken shales. These shales are siliceous, which increases brittleness and enhances fracture potential. Mechanical properties of the Bakken reveal that the shales have similar effective stress as the Middle Bakken suggesting that the shale will not contain induced fractures, and will contribute hydrocarbons from interconnected micro-fractures. Organic-rich shale impedance increases with a reduction in porosity and an increase in kerogen stiffness during the burial maturation process. Maturation can be directly related to impedance, and should be seismically mappable. Fractures enhance permeability and production. Regional fractures form an orthogonal set with a dominant NE-SW trend parallel to Ï?1, and a less prominent NW-SE trend. Many horizontal wells are drilled perpendicular to the Ï?1 direction to intersect these fractures. Local structures formed by basement tectonics or salt dissolution generate both hinge parallel and hinge oblique fractures that may overprint and dominate the regional fracture signature. Horizontal microfractures formed by oil expulsion in the Bakken shales, and connected and opened by hydrofracturing provide permeability pathways for oil flow into wells that have been hydro-fractured in the Middle Bakken lithofacies. Results from the lithofacies, mineral, and fracture analyses of this study were used to construct a dual porosity Petrel geo-model for a portion of the Elm Coulee Field. In this field, dolomitization enhances reservoir porosity and permeability. First year cumulative production helps locate areas of high well productivity and in deriving fracture swarm distribution. A fracture model was developed based on high productivity well distribution, and regional fracture distribution, and was combined with favorable matrix properties to build a dual porosity geo-model.

  1. The Bakken - An Unconventional Petroleum and Reservoir System

    SciTech Connect (OSTI)

    Sarg, J.

    2011-12-31

    An integrated geologic and geophysical study of the Bakken Petroleum System, in the Williston basin of North Dakota and Montana indicates that: (1) dolomite is needed for good reservoir performance in the Middle Bakken; (2) regional and local fractures play a significant role in enhancing permeability and well production, and it is important to recognize both because local fractures will dominate in on-structure locations; and (3) the organic-rich Bakken shale serves as both a source and reservoir rock. The Middle Bakken Member of the Bakken Formation is the target for horizontal drilling. The mineralogy across all the Middle Bakken lithofacies is very similar and is dominated by dolomite, calcite, and quartz. This Member is comprised of six lithofacies: (A) muddy lime wackestone, (B) bioturbated, argillaceous, calcareous, very fine-grained siltstone/sandstone, (C) planar to symmetrically ripple to undulose laminated, shaly, very fine-grained siltstone/sandstone, (D) contorted to massive fine-grained sandstone, to low angle, planar cross-laminated sandstone with thin discontinuous shale laminations, (E) finely inter-laminated, bioturbated, dolomitic mudstone and dolomitic siltstone/sandstone to calcitic, whole fossil, dolomitic lime wackestone, and (F) bioturbated, shaly, dolomitic siltstone. Lithofacies B, C, D, and E can all be reservoirs, if quartz and dolomite-rich (facies D) or dolomitized (facies B, C, E). Porosity averages 4-8%, permeability averages 0.001-0.01 mD or less. Dolomitic facies porosity is intercrystalline and tends to be greater than 6%. Permeability may reach values of 0.15 mD or greater. This appears to be a determinant of high productive wells in Elm Coulee, Parshall, and Sanish fields. Lithofacies G is organic-rich, pyritic brown/black mudstone and comprises the Bakken shales. These shales are siliceous, which increases brittleness and enhances fracture potential. Mechanical properties of the Bakken reveal that the shales have similar effective stress as the Middle Bakken suggesting that the shale will not contain induced fractures, and will contribute hydrocarbons from interconnected micro-fractures. Organic-rich shale impedance increases with a reduction in porosity and an increase in kerogen stiffness during the burial maturation process. Maturation can be directly related to impedance, and should be seismically mappable. Fractures enhance permeability and production. Regional fractures form an orthogonal set with a dominant NE-SW trend, and a less prominent NW-SE trend. Many horizontal 1 direction to intersect these fractures. Local structures formed by basement tectonics or salt dissolution generate both hinge parallel and hinge oblique fractures that may overprint and dominate the regional fracture signature. Horizontal microfractures formed by oil expulsion in the Bakken shales, and connected and opened by hydrofracturing provide permeability pathways for oil flow into wells that have been hydro-fractured in the Middle Bakken lithofacies. Results from the lithofacies, mineral, and fracture analyses of this study were used to construct a dual porosity Petrel geo-model for a portion of the Elm Coulee Field. In this field, dolomitization enhances reservoir porosity and permeability. First year cumulative production helps locate areas of high well productivity and in deriving fracture swarm distribution. A fracture model was developed based on high productivity well distribution, and regional fracture distribution, and was combined with favorable matrix properties to build a dual porosity geo-model.

  2. Passive removal of manganese from acid mine drainage

    SciTech Connect (OSTI)

    Brant, D.L.; Ziemkiewicz, P.F. [West Virginia Univ., Morgantown, WV (United States)

    1997-12-31

    Removal of manganese (Mn) from mine drainage is difficult due to the abnormal chemistry of the element. The removal requires the oxidation of Mn(II) (the form found in mine drainage) to the more oxidized forms (Mn(III) or Mn(IV)). The more oxidized forms exist only as solids and will not return to Mn(II) spontaneously. Chemical treatment of Mn often requires a pH near 10 to initiate the oxidation quickly. A stabilized pH of 10 normally causes more harm to aquatic organisms than the Mn and is not desirable, making additional steps in the treatment necessary. Biological removal of Mn can be achieved at near neutral pH levels. The Shade Mining site in Somerset County, PA has been treating Mn to discharge limits since the early 1990`s (reducing Mn concentrations from 12 - 25 mg/L in the influent to <2 mg/L in the effluent). The treatment system consists of an anoxic limestone drain discharging into a wetland to remove iron, aluminum, and acidity, while increasing pH and alkalinity. The wetland effluent flows into two limestone beds (Mn removal). The limestone beds developed a black slime coating as the Mn removal increased. This system continues to remove Mn in all weather conditions and has not required chemical treatment since the black coating appeared on the limestone. A laboratory study was conducted using limestone collected from the Shade site to use the same naturally occurring Mn oxidizing microbes. The lab study compared W removal rates of microbial oxidation, MnO{sub 2} catalyzed limestone, and fresh uncoated limestone. The microbial removal performed the best (25 mg/L Mn reduced to <2 mg/L in 72 hours).

  3. Elastic properties, sp³ fraction, and Raman scattering in low and high pressure synthesized diamond-like boron rich carbides

    SciTech Connect (OSTI)

    Zinin, Pavel V.; Burgess, Katherine; Jia, Ruth; Sharma, Shiv; Ming, Li-Chung; Liu, Yongsheng; Ciston, Jim; Hong, Shiming

    2014-10-07

    Dense BC{sub x} phases with high boron concentration are predicted to be metastable, superhard, and conductors or superconductors depending on boron concentration. However, up to this point, diamond-like boron rich carbides BC{sub x} (dl-BC{sub x}) phases have been thought obtainable only through high pressure and high temperature treatment, necessitating small specimen volume. Here, we use electron energy loss spectroscopy combined with transmission electron microscopy, Raman spectroscopy, surface Brillouin scattering, laser ultrasonics (LU) technique, and analysis of elastic properties to demonstrate that low pressure synthesis (chemical vapor deposition) of BC{sub x} phases may also lead to the creation of diamond-like boron rich carbides. The elastic properties of the dl-BC{sub x} phases depend on the carbon sp²versus sp³ content, which decreases with increasing boron concentration, while the boron bonds determine the shape of the Raman spectra of the dl-BC{sub x} after high pressure-high temperature treatment. Using the estimation of the density value based on the sp³ fraction, the shear modulus ? of dl-BC?, containing 10% carbon atoms with sp³ bonds, and dl-B?C?, containing 38% carbon atoms with sp³ bonds, were found to be ? = 19.3 GPa and ? = 170 GPa, respectively. The presented experimental data also imply that boron atoms lead to a creation of sp³ bonds during the deposition processes.

  4. Reduced repair capacity of a DNA clustered damage site comprised of 8-oxo-7,8-dihydro-2'-deoxyguanosine and 2-deoxyribonolactone results in an increased mutagenic potential of these lesions

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Cunniffe, Siobhan; O’Neill, Peter; Greenberg, Marc M.; Lomax, Martine E.

    2014-04-01

    A signature of ionizing radiation is the induction of DNA clustered damaged sites. Non-double strand break (DSB) clustered damage has been shown to compromise the base excision repair pathway, extending the lifetimes of the lesions within the cluster, compared to isolated lesions. This increases the likelihood the lesions persist to replication and thus increasing the mutagenic potential of the lesions within the cluster. Lesions formed by ionizing radiation include 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodGuo) and 2-deoxyribonolactone (dL). dL poses an additional challenge to the cell as it is not repaired by the short-patch base excision repair pathway. Here we show recalcitrant dL repairmore »is reflected in mutations observed when DNA containing it and a proximal 8-oxodGuo is replicated in Escherichia coli. 8-oxodGuo in close proximity to dL on the opposing DNA strand results in an enhanced frequency of mutation of the lesions within the cluster and a 20 base sequence flanking the clustered damage site in an E. coli based plasmid assay. In vitro repair of a dL lesion is reduced when compared to the repair of an abasic (AP) site and a tetrahydrofuran (THF), and this is due mainly to a reduction in the activity of polymerase ?, leading to retarded FEN1 and ligase 1 activities. This study has given insights in to the biological effects of clusters containing dL.« less

  5. Electric utility engineer`s FGD manual -- Volume 1: FGD process design. Final report

    SciTech Connect (OSTI)

    1996-03-04

    Part 1 of the Electric Utility Engineer`s Flue Gas Desulfurization (FGD) Manual emphasizes the chemical and physical processes that form the basis for design and operation of lime- and limestone-based FGD systems applied to coal- or oil-fired steam electric generating stations. The objectives of Part 1 are: to provide a description of the chemical and physical design basis for lime- and limestone-based wet FGD systems; to identify and discuss the various process design parameters and process options that must be considered in developing a specification for a new FGD system; and to provide utility engineers with process knowledge useful for operating and optimizing a lime- or limestone-based wet FGD system.

  6. Aerosols released during large-scale integral MCCI tests in the ACE Program

    SciTech Connect (OSTI)

    Fink, J.K.; Thompson, D.H.; Spencer, B.W.; Sehgal, B.R.

    1992-04-01

    As part of the internationally sponsored Advanced Containment Experiments (ACE) program, seven large-scale experiments on molten core concrete interactions (MCCIs) have been performed at Argonne National Laboratory. One of the objectives of these experiments is to collect and characterize all the aerosols released from the MCCIs. Aerosols released from experiments using four types of concrete (siliceous, limestone/common sand, serpentine, and limestone/limestone) and a range of metal oxidation for both BWR and PWR reactor core material have been collected and characterized. Release fractions were determined for UO{sup 2}, Zr, the fission-products: BaO, SrO, La{sub 2}O{sub 3}, CeO{sub 2}, MoO{sub 2}, Te, Ru, and control materials: Ag, In, and B{sub 4}C. Release fractions of UO{sub 2} and the fission products other than Te were small in all tests. However, release of control materials was significant.

  7. Aerosols released during large-scale integral MCCI tests in the ACE Program

    SciTech Connect (OSTI)

    Fink, J.K.; Thompson, D.H.; Spencer, B.W. ); Sehgal, B.R. )

    1992-01-01

    As part of the internationally sponsored Advanced Containment Experiments (ACE) program, seven large-scale experiments on molten core concrete interactions (MCCIs) have been performed at Argonne National Laboratory. One of the objectives of these experiments is to collect and characterize all the aerosols released from the MCCIs. Aerosols released from experiments using four types of concrete (siliceous, limestone/common sand, serpentine, and limestone/limestone) and a range of metal oxidation for both BWR and PWR reactor core material have been collected and characterized. Release fractions were determined for UO{sup 2}, Zr, the fission-products: BaO, SrO, La{sub 2}O{sub 3}, CeO{sub 2}, MoO{sub 2}, Te, Ru, and control materials: Ag, In, and B{sub 4}C. Release fractions of UO{sub 2} and the fission products other than Te were small in all tests. However, release of control materials was significant.

  8. Lithostratigraphy and environmental considerations of Cenomanian-Early Turonian shelf carbonates (Rumaila and Mishrif Formations) of Mesopotamian basin, middle and southern Iraq

    SciTech Connect (OSTI)

    Sherwani, G.H.M.; Aqrawi, A.A.M.

    1987-05-01

    Rumaila and Mishrif Formations form the major part of the Cenomanian early Turonian deposits of middle and southern Iraq. The Rumaila Formation consists of lithographic chalky limestone at the lower part and marly limestone and marl at the upper part. The formation represents deep off-shelf deposits, whereas the overlying Mishrif Formation is composed of various types of shallow-shelf carbonates such as rudist-bearing patchy reefs and lagoonal and off-shelf limestones. An environmental model is suggested to delineate the stratigraphic relationships between the above mentioned two formations and to correlate them with their equivalents in central Iraq (i.e., Mahilban, Fahad, and Maotsi Formations). The gradational contact between the two formations and the intertonguing with their equivalents are considered to be the most important stratigraphic phenomena.

  9. DEVELOPMENT OF POLYMER GEL SYSTEMS TO IMPROVE VOLUMETRIC SWEEP AND REDUCE PRODUCING WATER/OIL RATIOS

    SciTech Connect (OSTI)

    G. Paul Willhite; Don W. Green; Stan McCool; Min Cheng; Feiyan Chen

    2004-02-01

    The objectives of the research are to improve the effectiveness of polymer gels to increase volumetric sweep efficiency of fluid displacement processes and to reduce water production in production wells. The research is based on experimental data and conceptual and mathematical models developed from interpretation of experimental data. This report describes two types of mathematical models that were developed. One model type simulates the chemical reactions where polymer molecules are crosslinked to form a 3-dimensional network or gel. The model is based on statistical probabilities of reactions and yields molecular weights averages and distributions as functions of conversion. The second model type simulates the transport of chromium acetate, a common polymer crosslinker, through porous dolomite rock and includes the mechanisms of dolomite dissolution and chromium precipitation. The chromium transport model reasonably agreed with experimental data.

  10. ADVANCED CHARACTERIZATION OF FRACTURED RESERVOIRS IN CARBONATE ROCKS: THE MICHIGAN BASIN

    SciTech Connect (OSTI)

    James R. Wood; William B. Harrison

    2002-12-01

    The purpose of the study was to collect and analyze existing data on the Michigan Basin for fracture patterns on scales ranging form thin section to basin. The data acquisition phase has been successfully concluded with the compilation of several large digital databases containing nearly all the existing information on formation tops, lithology and hydrocarbon production over the entire Michigan Basin. These databases represent the cumulative result of over 80 years of drilling and exploration. Plotting and examination of these data show that contrary to most depictions, the Michigan Basin is in fact extensively faulted and fractured, particularly in the central portion of the basin. This is in contrast to most of the existing work on the Michigan Basin, which tends to show relatively simple structure with few or minor faults. It also appears that these fractures and faults control the Paleozoic sediment deposition, the subsequent hydrocarbon traps and very likely the regional dolomitization patterns. Recent work has revealed that a detailed fracture pattern exists in the interior of the Central Michigan Basin, which is related to the mid-continent gravity high. The inference is that early Precambrian, ({approx}1 Ga) rifting events presumed by many to account for the gravity anomaly subsequently controlled Paleozoic sedimentation and later hydrocarbon accumulation. There is a systematic relationship between the faults and a number of gas and oil reservoirs: major hydrocarbon accumulations consistently occur in small anticlines on the upthrown side of the faults. The main tools used in this study to map the fault/fracture patterns are detailed, close-interval (CI = 10 feet) contouring of the formation top picks accompanied by a new way of visualizing the data using a special color spectrum to bring out the third dimension. In addition, recent improvements in visualization and contouring software were instrumental in the study. Dolomitization is common in the Michigan Basin, and it is crucial in developing reservoir quality rocks in some fields. Data on the occurrence of dolomite was extracted from driller's reports for all reported occurrences in Michigan, nearly 50 fields and over 500 wells. A digital database was developed containing the geographic location of all these wells (latitude-longitude) as well as the elevation of the first encounter of dolomite in the field/reservoir. Analysis shows that these dolomite occurrences are largely confined to the center of the basin, but with some exceptions, such as N. Adams Field. Further, some of the dolomite occurrences show a definite relationship to the fracture pattern described above, suggesting a genetic relationship that needs further work. Other accomplishments of this past reporting period include obtaining a complete land grid for the State of Michigan and further processing of the high and medium resolution DEM files. We also have measured new fluid inclusion data on dolomites from several fields that suggest that the dolomitization occurred at temperatures between 100 and 150 C. Finally, we have extracted the lithologic data for about 5000 wells and are in the process of integrating this data into the overall model for the Michigan Basin.

  11. Compressibility factors for retrograde gases: a new correlation 

    E-Print Network [OSTI]

    Corredor Real, Jairo Hernando

    1991-01-01

    CI o CD ID CI N O CD IA O O CD O 00 CD 00 O O CQ CD CD F) 0& CD O CD O CD N N o o CO IA N 00 CD N N Q) CD CD ID CO P3 O N O O o O VO O 00 N O O CD N CO ICI O O IA LD N N P O N CD O CD O N CO IA N... CD N IA 00 N O ID dl CL O CL Cd O ID 0 e 12 &C O CI O h O e O) O C dl OI O 13 z e Cd CL O 0 e Id K O ID e Cd Q3 Cd Cd ID D I O ID 0$ C e D I e Cd X e Id CL e C Cd 0 0) C dl Cd Cd 0 O Z CI...

  12. Worker lead exposures during renovation of homes with lead-based paint

    SciTech Connect (OSTI)

    Sussell, A.; Gittleman, J.; Singal, M.

    1998-11-01

    The authors evaluated lead exposures among full-time home renovators and part-time volunteers working primarily in pre-1960 homes with lead-based paint. Potentially hazardous lead exposures were measured during two tasks: exterior dry scraping and wet scraping. Maximum exposures were 120 and 63 {micro}g/m{sup 3}, respectively. Exposures during other tasks, including general repair, weatherization, exterior scraping/painting, window replacement, demolition, and plumbing, were low, as were all 13 full-shift personal exposures. Blood lead levels for full-time workers ranged up to 17.5 {micro}g/dl, with a GM of 5.2 {micro}g/dl; the GM for volunteers was 3.2 {micro}g/dl. All of the paint samples collected from work surfaces had detectable amounts of lead, with 65% of the work surfaces tested having an average lead concentration of >0.5%.

  13. Plasmon Resonance in Multilayer Graphene Nanoribbons

    E-Print Network [OSTI]

    Emani, Naresh Kumar; Chung, Ting-Fung; Prokopeva, Ludmila J; Kildishev, Alexander V; Shalaev, Vladimir M; Chen, Yong P; Boltasseva, Alexandra

    2015-01-01

    Plasmon resonance in nanopatterned single layer graphene nanoribbon (SL-GNR), double layer graphene nanoribbon (DL-GNR) and triple layer graphene nanoribbon (TL-GNR) structures is studied both experimentally and by numerical simulations. We use 'realistic' graphene samples in our experiments to identify the key bottle necks in both experiments and theoretical models. The existence of electrical tunable plasmons in such stacked multilayer GNRs was first experimentally verified by infrared microscopy. We find that the strength of the plasmonic resonance increases in DL-GNR when compared to SL-GNRs. However, we do not find a further such increase in TL-GNRs compared to DL-GNRs. We carried out systematic full wave simulations using finite element technique to validate and fit experimental results, and extract the carrier scattering rate as a fitting parameter. The numerical simulations show remarkable agreement with experiments for unpatterned SLG sheet, and a qualitative agreement for patterned graphene sheet. W...

  14. Method for enhancing the desulfurization of hot coal gas in a fluid-bed coal gasifier

    DOE Patents [OSTI]

    Grindley, Thomas (Morgantown, WV)

    1989-01-01

    A process and apparatus for providing additional desulfurization of the hot gas produced in a fluid-bed coal gasifier, within the gasifier. A fluid-bed of iron oxide is located inside the gasifier above the gasification bed in a fluid-bed coal gasifier in which in-bed desulfurization by lime/limestone takes place. The product gases leave the gasification bed typically at 1600.degree. to 1800.degree. F. and are partially quenched with water to 1000.degree. to 1200.degree. F. before entering the iron oxide bed. The iron oxide bed provides additional desulfurization beyond that provided by the lime/limestone.

  15. Method and apparatus for enhancing the desulfurization of hot coal gas in a fluid-bed coal gasifier

    DOE Patents [OSTI]

    Grindley, T.

    1988-04-05

    A process and apparatus for providing additional desulfurization of the hot gas produced in a fluid-bed coal gasifier, within the gasifier is described. A fluid-bed of iron oxide is located inside the gasifier above the gasification bed in a fluid-bed coal gasifier in which in-bed desulfurization by lime/limestone takes place. The product gases leave the gasification bed typically at 1600 to 1800 F and are partially quenched with water to 1000 to 1200 F before entering the iron oxide bed. The iron oxide bed provides additional desulfurization beyond that provided by the lime /limestone. 1 fig.

  16. Geology of the Doss-North area, Mason and Gillespie Counties, Texas 

    E-Print Network [OSTI]

    Coughran, Theodore

    1959-01-01

    !. ', . &. Jjf"'5". ~ 4;:0 +SJ~ -'0 f. ~~'6 +J~. N. "&'~:1$ '(?: ~':c~ t?)dan, C:" J 'Q O' '0 I ''I j 1' P PnvgZOagAP!T CLZ"A~. P~ V:G". Api G The Peso-, forth aron lies within thc semiarid Llano regioni Tho average rain "all is apprcxi. iately 22.... Uluff ci San Saba limestone member VIll. i'ig. Conformable Cambrian-Ordovici"n contact i31uff oi Thrsadglll limestone member 38 IX. I ig. 1: I ig. 2i Unconformable Ordovician-Cretaceous contact Lange's gill conglomerate 6 X. icnssive Cretaceous...

  17. Effects of dietary calcium sources on laying hen performance 

    E-Print Network [OSTI]

    Brister, Roy David

    1980-01-01

    size of the supplemental calcium. The data indicates that the calcium from oyster shell is more available than that from limestone. ACKNOWLEDGEMENTS to . ' The author wishes to express his sincere appreciation Dr. C. R. Creger for his many hours... been fed. 29 12 The correlation between egg shell quality parameters where 2/3 aragonite + 1/3 oyster shells has been fed 30 13 The correlation between egg shell quality parameters where 2/3 limestone + 1/3 oyster shells has been fed 31 LIST...

  18. Shell appraising deepwater discovery off Philippines

    SciTech Connect (OSTI)

    Scherer, M. ); Lambers, E.J.T.; Steffens, G.S. )

    1993-05-10

    Shell International Petroleum Co. Ltd. negotiated a farmout in 1990 from Occidental International Exploration and Production Co. for Block SC-38 in the South China Sea off Palawan, Philippines, following Oxy's discovery of gas in 1989 in a Miocene Nido limestone buildup. Under the terms of the farmout agreement, Shell became operator with a 50% share. Following the disappointing well North Iloc 1, Shell was successful in finding oil and gas in Malampaya 1. Water 700-1,000 m deep, remoteness, and adverse weather conditions have imposed major challenges for offshore operations. The paper describes the tectonic setting; the Nido limestone play; the Malampaya discovery; and Shell's appraisal studies.

  19. Estillville folio, Kentucky-Virginia-Tennessee 

    E-Print Network [OSTI]

    Campbell, Marius R. (Marius Robinson), 1858-1940.

    1894-01-01

    porosities to be high, and a correction must be introduced that accounts for the amount and density of residual hydrocarbons. The corrections are usually small in oil-bearing formations but can be quite large for those formations containing gas. Shale... is authigenic, with kaolinite the dominant type. An early carbonate cement forms 5% of bulk volume and is composed of 64% dolomite and 36% calcite. Pelagic shales are typically very thin and separate individual turbidite sets. These sandstone beds range from...

  20. Department ofEnergy Technology Annual Progress Report

    E-Print Network [OSTI]

    -phase Phenomena 17 2.6. Risø Pulverized Coal Fired Tunnel Furnace 18 2.7. Computer Modelling of Coal Gasification Systems . 21 2.8. Optimal Process Condition for a Dolomite Cracker. 21 2.9. Computer Modelling of Biomass Gasification 22 2.10. LDA Velocity Measurement in a 500 kW Pulverized Coal Flame 22 2.11. 20 MW Circulating

  1. Depositional environment of the Yates Formation in Kermit Field, Winkler County, Texas

    SciTech Connect (OSTI)

    Baker, S.G. (Mobil Exploration and Producing, Denver, CO (USA))

    1990-05-01

    The Yates Formation (Permian Guadalupian) is a series of alternating clastic and carbonate units deposited on a shallow marine shelf in repetitive cycles: (1) a mottled, anhydritic dolomite at the base, (2) an overlying oxidized wind-blown very fine-grained sand and silt, (3) a bioturbated, but otherwise massive, sandstone, and (4) an uppermost massive dolomite containing oolites or skeletal material. A typical cycle is 10-20 ft thick. Deposition of the Yates was controlled by fluctuations in sea level governed by glacial activity and local tectonics. During sea level low stands, carbonates were dolomitized and displaced by anhydrite. This was followed by deposition of wind-blown sediments creating planar horizontal laminae and exposure features (desiccation cracks, tepee structures, and adhesion ripples). During sea level high stands, dunes an the platform were deposited as sheet sands. Lastly, a carbonate layer was deposited before sea level dropped and another cycle began. Sands were transported to the Central Basin platform as eolian dunes from the Pedernal highlands of central New Mexico. Wind direction for the Permian is documented as south-southeast based on mapping of sand dunes in the southwestern US. Quartz size in the clastics ranges from 0.03-0.11 mm, averaging 0.07 mm. The sandstones are homogeneous, well sorted, and most quartz grains are frosted. Except for planar wind laminae, these units contain only indistinct primary sedimentary structures, constrained by small grain size and grain size uniformity within beds. The clastics are 52% monocrystalline quartz, 17% feldspar, 4% rock fragments, 5% other minerals, and 22% matrix (dolomite in the carbonates and authigenic clays in the clastics).

  2. Construction of a diagenetic history and identification with quality ranking of reservoir flow units: Grayson field, Columbia County, Arkansas 

    E-Print Network [OSTI]

    Poole, Kathleen Renee

    2007-04-25

    -Chem Operating, Inc. and Anderson Oil & Gas, Inc provided thin sections from 53 samples collected in the first three field wells by Schatzinger (1993). They were examined to classify pore types genetically. From this information, 40 additional thin sections.../wackstone, wackestone/ mudstone, and microbial boundstone facies is porosity reducing. Though dissolution is present to abundant in most samples, early cementation and compaction as well as late stage dolomite and anhydrite pore filling and grain replacement caused...

  3. The geology of North Fredonia area, McCulloch and San Saba Counties, Texas 

    E-Print Network [OSTI]

    Mosteller, Stanley Alfred

    1957-01-01

    " structure VI ~ Topographic beach developed oa Point Peak shale 35 VI I. Weathered surface of the lisestoae facies ot' the lower Blleaburger . ~ . . . ~ . . . . , . . ~ . . ~ V III. Typical !:. Ilsaburger dolomite topography snd small caves... Ordoviciaa age, consists of gray liwestoae aad grassier doloaite. Rocks of Early Peaasylvaaiaa ege crop out oa the dowathrowa side ef the Fredoaia faalt near the eastern boundary of the area. North to northeast trending aorwal faults disrupt the strata...

  4. Depositional environments, diagenetic history, and porosity development, of the Permian San Andres Formation, Vacuum Field, Lea County, New Mexico 

    E-Print Network [OSTI]

    Robertson, Jeffrey Woolf

    1989-01-01

    in the form of intergranular pores and minor amounts of intragranular pores in fusulinid tests. Diagenetic pore types include intercrystalline pores in the dolomitized lime mud and moldic pores after leaching of pelletoids, oolites, and algal debris. Dark... of preexisting carbonate grains (Kerr and Thomson, 1963). Nodules are common; they may have displaced surrounding lime mud and may be associated with organic material (Ramondetta, 1982). Pore-filling anhydrite is described by Ramondetta as coarse, clear...

  5. Geologic history of the Pettet Zone of the Sligo formation at Lisbon Field, Claiborne Parish, Louisiana 

    E-Print Network [OSTI]

    Ford, James Patrick

    1985-01-01

    . Aragonite allochems were selectively dissolved, and magnesium calcites were stabilized to low magnesium calcite. Abundant aragonite bivalve fragments formed nuclei of superficial ooids. All original oolitic coatings were probably calcite. Dissolution... occluding porosity. Late dissolution and minor replacement and cementation by saddle dolomite and anhydrite occurred in the deep subsurface (below 5000 ft. ). These reactions were related to the depth-temperature dependent migration of hydrocarbons...

  6. Facies analysis of the Caballero Formation and the Andrecito Member of the Lake Valley Formation (Mississippian): implications for Waulsortian bioherm inception, Alamo Canyon area, Sacramento Mountains, New Mexico 

    E-Print Network [OSTI]

    Byrd, Thomas Martin

    1989-01-01

    paleo-equatorial region connecting different biotic provinces on either side of the arch (Sando et al, 1975). Far to the south, deeper waters of the incipient Ouachita trough separated North America from Gondwanaland (Walper, 1977; Scotese et al, 1979... section is approximately 70 ft thick and comprises the Onate, Sly Gap, and Percha Formations (Pray, 1961) (Figure 8). These units are poorly exposed. The Onate Formation iS composed of silty dolomite, shale, siltstone and sandstone. The Sly Gap...

  7. Environments of deposition and diagenesis of the Jurassic Upper Smackover Formation in the Lincoln Parish area, Louisiana 

    E-Print Network [OSTI]

    Palko, Gregory Jonathan

    1980-01-01

    and intraclastic grainstones, argillaceous, dolomitic mudstones to wackestones with nodular anhydrite stringers, and some mas- sive, bioturbated litharenites, graded litharenites, silt- stones and shales. The two shoaling upwards grainstone cycles that were... is present between the cycles i . +he landward core. I+ is a +idal lat microfacies on the lee o. the island ti at develoved during deposition of the "z lime" or lower shoaling cycle. inter-'idee trough or salt withdrawal basin in the southern vast of +he...

  8. Solvation studies on anion radicals of alkyl nitrobenzene derivatives in acetonitrile-alkyl alcohol solvent mixtures at 25 p0 sC 

    E-Print Network [OSTI]

    Chu, William Wen-Chen

    1970-01-01

    the coef- ficients al through a& 1 and Kl through K& for the formula (1) 1 2K1 1 + a3K1K2D2 ''' + t+1 I a (1) 1 + K1Dl K1K2 2 + ~ + K1K2' 'KS where a is the experimentally measured nitrogen hyperfine constant. Dl through D are functions of activities... of solvation complexes Rl through R&+i. Kl through K are equilibrium constants of solvation steps for i = '1 through s, e. q. step 1 through step s. is the number of solvation steps. Usually we apply a least squares approximation to determine...

  9. Simulated effects of changes in the infiltration rate and the hydraulic conductivity structure on the location and configuration of the water table at Yucca Mountain, Nevada 

    E-Print Network [OSTI]

    Jasek, Noreen Ann

    1991-01-01

    dh/dl is the hydraulic gradient where h is the hydraulic head and 1 is the length of the flow path over which the head change is measured. Because both h and 1 have units of length, dh/dl itself is unitless. The deterministic flow equation used... of the steep gradients causing the step- like configuration have been related to two mechanisms: ground water barriers or gradual permeability variations. This study was designed to determine if either or both of the mechanisms could produce the observed...

  10. The process of EDC-NHS Cross-linking of reconstituted collagen fibres increases collagen fibrillar order and alignment

    E-Print Network [OSTI]

    Shepherd, D. V.; Shepherd, D. V.; Ghose, S.; Kew, S. J.; Cameron, R. E.

    2014-11-05

    . Mechanical Properties of collagen fibres: a comparison of reconstituted and rat tail tendon fibres. Biomaterials. 1989;10:38-42. [2] Pins GD, Christiansen DL, Patel R, Silver H. Self-Assembly of Collagen Fibers. Influence of Fibrillar alignment and Decorin... ;89A:363-9. [9] Ellis DL, Yannas IV. Recent advances in tissue synthesis in vivo by use of collagen- glycosaminoglycan copolymers. Biomaterials. 1996;17:291-9. [10] Chau DYS, Collighan RJ, Verderio EAM, Addy VL, Griffin M. The cellular response...

  11. An evaluation of the 3M Organic Vapor Monitor #3500 as a short term exposure limit sampling device for acetone, methyl ethyl ketone, and methyl iso butyl ketone 

    E-Print Network [OSTI]

    Andrew, Lloyd B.

    1982-01-01

    . Six (6) monitors were removed from 3M's resealable envelopes and labeled. The monitors were attached to the aluminum disc so the air movement would be perpendicular to and against the back of the monitor. dl '0 l 0 dt dl dt 0 td 0 IJ 0 0 0 0... the contaminant into the system. The F-values in Table 7 are all greater than 3. 0718 so the null hypothesis is rejected, or Equation 4 is rejected in support of Equation 5. This means there are three different slopes describing the relationship between...

  12. MATH 241 (FS) 4 MATH 243 3 MET 303 3 MET 305 3 CHEM 161 (DP) 3 PHYS 272 3 MET 320 or ICS 111 3 MET Elective 300+ 3

    E-Print Network [OSTI]

    MATH 241 (FS) 4 MATH 243 3 MET 303 3 MET 305 3 CHEM 161 (DP) 3 PHYS 272 3 MET 320 or ICS 111 3 MET Elective 3 FG (A/B/C) 3 MET 101L 1 HSL 101 3 DB 3 DA/DH/DL 3 DA/DH/DL 3 17 14 15 15 MATH 242 4 MATH 244 3 Credits 0 32 61 91 120 Students must take placement exams to be able to register for CHEM 161 and MATH

  13. Analysis of well test data influenced by multiple reservoir boundaries using pressure derivative type curves 

    E-Print Network [OSTI]

    Buzarde, Charles Brett

    1991-01-01

    Well No-Flow Boundary Image Well Figure 2. 2 Real Well and Image Well Pressure Drwadown Patterns After an Extended Flow Period. Real well ~ L rw I m age w e I 1 L ~ rw Figure 2. 3 Single Linear No-flow Barrier Image Well Configuration 22 Apr.... 1 At early times the value of tD will be large while our value of tDL will be small (because rw2 ?L2) Therefore at early times the exponent terms in Eq. 3. 1 have the following values -I p(4t ) -I and exp( ? ) ~ 0 tDL This is the middle time...

  14. Maquoketa Shale Caprock Integrity Evaluation

    SciTech Connect (OSTI)

    Leetaru, Hannes

    2014-09-30

    The Knox Project objective is to evaluate the potential of formations within the Cambrian-Ordovician strata above the Mt. Simon Sandstone (St. Peter Sandstone and Potosi Dolomite) as potential targets for carbon dioxide (CO2) sequestration in the Illinois and Michigan Basins. The suitability of the St. Peter Sandstone and Potosi Dolomite to serve as reservoirs for CO2 sequestration is discussed in separate reports. In this report the data gathered from the Knox project, the Illinois Basin – Decatur Project (IBDP) and Illinois Industrial Carbon Capture and Sequestration project (IL-ICCS) are used to make some conclusions about the suitability of the Maquoketa shale as a confining layer for CO2 sequestration. These conclusions are then upscaled to basin-wide inferences based on regional knowledge. Data and interpretations (stratigraphic, petrophysical, fractures, geochemical, risk, seismic) applicable to the Maquoketa Shale from the above mentioned projects was inventoried and summarized. Based on the analysis of these data and interpretations, the Maquoketa Shale is considered to be an effective caprock for a CO2 injection project in either the Potosi Dolomite or St. Peter Sandstone because it has a suitable thickness (~200ft. ~61m), advantageous petrophysical properties (low effective porosity and low permeability), favorable geomechanical properties, an absence of observable fractures and is regionally extensive. Because it is unlikely that CO2 would migrate upward through the Maquoketa Shale, CO2, impact to above lying fresh water aquifers is unlikely. Furthermore, the observations indicate that CO2 injected into the St. Peter Sandstone or Potosi Dolomite may never even migrate up into the Maquoketa Shale at a high enough concentrations or pressure to threaten the integrity of the caprock. Site specific conclusions were reached by unifying the data and conclusions from the IBDP, ICCS and the Knox projects. In the Illinois Basin, as one looks further away from these sites, the formation characteristics are expected to vary. The degree of how well this data can be extrapolated throughout the Basins (regionalized) is difficult to quantify because of the limited amount of data collected on the Maquoketa Shale away from IBDP, IL-ICCS and the Knox projects. Data gathered from the IBDP/IL-ICCS/Knox projects were used to make conclusions about the suitability of the Maquoketa shale as a confining layer for CO2 sequestration. This study indicates that the Maquoketa Shale would be a suitable caprock for a CO2 injection program in either the Potosi Dolomite or St. Peter Sandstone.

  15. Irrigation and Management of Texas Soils. 

    E-Print Network [OSTI]

    Box, John; Bennett, William F.

    1959-01-01

    are of two types - those pro- viding soluble calcium such as gypsum, and acid or acid-forming amendments such as sul- fur, sulfuric acid, iron sulfate and aluminium sulfate. Application of limestone may be valu- able as a source of calcium on acid soils...

  16. Georgetown University Integrated Community Energy System (GU-ICES). Phase III, Stage I: feasibility analysis. Final report

    SciTech Connect (OSTI)

    Buck, Victor

    1980-10-01

    Candidate energy alternatives are analyzed in Phase III, Stage I, and the appendices are presented for the feasibility analysis. Information in eight appendices includes the following: detailed statement of work; PEPCO rate schedules; cogeneration schemes; added coal, limestone, and ash storage; hot and cold thermal storage; absorption refrigeration; high temperature heat pumps; and life cycle cost analysis. (MCW)

  17. begell house, inc. Journal Production

    E-Print Network [OSTI]

    Hu, Qinhong "Max"

    . For example, critical voltage of concrete at limited cur- rents is used to evaluate the concrete permeability. The calculated effective permeabilities of three building materials, including limestone, concrete, and brick (Lu et al., 2000). Also, the permeability of concrete can be obtained by the conductivity of concrete

  18. Our Mississippi is a quarterly newsletter of the U.S. Army

    E-Print Network [OSTI]

    US Army Corps of Engineers

    a ranking system for the proposed work by establishing an Index of Habitat Quality. Projects were ranked according to how they improve habitat quality and their cost-effectiveness; this information proved useful for project selection. Continued on page 2 >> ABOVE: Construction contractor Mississippi Limestone, Inc

  19. Goldilocks and the Three Planets M. O. Fillingim1 (matt@ssl.berkeley.edu), D. A. Brain1, L. M. Peticolas2, D. Yan2, K. Fricke2

    E-Print Network [OSTI]

    Fillingim, Matthew

    in liquid water and can form carbonate rocks vinegar + limestone = bubbles of CO2 Earth's early CO2! Models's Year of the Solar System: Science Isn't Done Until It's Shared! ED23A-0713 NASA's Year of the Solar System: Science Isn't Done Until It's Shared! Goals · Just after their formation, the atmospheres

  20. Figure 1. Location of geologic provinces considered in this study.

    E-Print Network [OSTI]

    of northeast Mexico and southeast Texas. The Pimienta Formation of the Tampico-Misantla Basin is equivalent equivalent to the Agua Nue- va Formation of northeast Mexico (Peterson, 1985). [Gp., Group; Fm., Formation; Cgl., conglomerate; Ls., limestone; Sh., shale; Evap., evaporite] Figure 3. Schematic diagram showing

  1. Earth and Planetary Science Letters 391 (2014) 263273 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    2014-01-01

    sources during folding of shale and limestone rocks; an example from the Mexican Fold-Thrust Belt Elisa, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México DF, Mexico a r t i c l e i n f o the source of local fluids interacting with rock during folding in anchizonal shales of the Mexican Fold

  2. Grossman and others APPENDIX I. COLLECTING LOCALITIES AND STRATIGRAPHIC

    E-Print Network [OSTI]

    Grossman, Ethan L.

    MEXICO. KANSAS Oread cycle, Shawnee Group (Virgilian age) - Waverly Quarry section, with exposures of Heebner Shale and Plattsmouth Limestone Location: quarry 3 km northeast of the town of Waverly, Coffey Co, with exposures of the top 0.5 m of the cycle-center platy, phosphatic, black shales (Heebner Shale) and 5 m

  3. Binding of Harvested Bacterial Exopolymers to the Surface of

    E-Print Network [OSTI]

    of the EPS showed that binding strength to calcite depended on the chemical nature of the polymer. Introduction Dissolution of calcium carbonate (calcite) affects global carbon cycling (1), the chemistry of calcium carbonate in the form of limestone or marble. Retardation of deterioration is important

  4. Geology of the Big Bend of the Llano River area, Mason County, Texas 

    E-Print Network [OSTI]

    Wilson, Guilford James

    1957-01-01

    . 35 Milberns Formation. . . . ? ~ ~ ? ~ ~ ~ ~ ~ ~ 52 'Jo lge Sandstone Nember. . ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 53 Norgan Creek Limestone Nember Point Peak Shale Nemberl ~ \\ ~ t ~ l ~ ~ ~ ~ ~ ~ ~ Qwlt a rnarF e... member. . ~ ~ 58 XX. Features of the Point Peak shale member. . . ~ ~ . ~ ~ ~ ~ ~ 60 Figure 1 ? Thin undulating shale beds in Point Peak shale member ~ Figure 2~&ymr, ". etrical ripple marks in the Point Peak shale member. XXI. Bioherms ~ I I 0...

  5. Floral succession and isotopic diagenesis of the Anahuac Formation at Damon Mound, Texas 

    E-Print Network [OSTI]

    De Freest, Eric Scott

    1993-01-01

    The Anahuac Formation at Damon Mound, Texas includes a fault block of the Heterostegina limestone (Oligocene), raised to the surface by Cenozoic salt tectonism. Four cores drilled into the reef complex by Dresser Minerals (29-77, 19-77, 19- A-77...

  6. 1. Mineral Exploration Regulation in British Columbia Health, Safety and Reclamation Code

    E-Print Network [OSTI]

    Bolch, Tobias

    for or to produce coal, mineral bearing substances, placer minerals, rock, limestone, earth, clay, sand or gravel mineral, coal, sand, gravel or rock, or (b) the production of a mineral, a placer mineral, coal, sand under the Criminal Code of Canada for criminal acts or negligence in the workplace. Further information

  7. The geoarchaeology of Buttermilk Creek, Bell County, Texas 

    E-Print Network [OSTI]

    Gibson, Brandy Deanne

    1997-01-01

    was conducted. Buttermilk Creek is a 13 km stream incised into limestone bedrock with a drainage basin size of 43 kM2 , a stream gradient of 8.5 m/km, and a sinuosity of 1.26. This project was undertaken with two objectives in mind-, to create a...

  8. Introduction Ideally, fishery biologists dream of a

    E-Print Network [OSTI]

    for 45% of that area, and MCDE (East) 26%, LB 17%, and MS the remaining 13%. With the excep- tion of MS was the most abundant consolidated habitat for both MCDW and MCDE (41% and 43% respectively). Consolidated in MS, MCDW, and MCDE. Coral limestone and coral patch habitats only covered LB minimally. The high

  9. Xeriscape...Landscape Water Conservation 

    E-Print Network [OSTI]

    Welsh, Douglas F.; Welch, William C.; Duble, Richard L.

    2007-04-27

    covering the soil surface around plants. Mulches can be organic materials such as pine bark, compost and woodchips; or inor- ganic materials such as lava rock, limestone or permeable plastic (not sheet plastic). Use a mulch wherever possible. A good mulch...

  10. Lesson Summary Students will learn about the carbon cycle and

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Processes that Shape the Earth The Living Environment The Flow of Matter and Energy Human Society Global solid minerals (such as limestone), 'squishy' organisms (such as plants and animals), and can be dissolved in water or carried around the world through the atmosphere as carbon dioxide gas. The attributes

  11. Descripcin de las cuencas mediterrneas seleccionadas en el proyecto GUADALMED.

    E-Print Network [OSTI]

    Bonada, Núria

    35 Descripción de las cuencas mediterráneas seleccionadas en el proyecto GUADALMED. Santiago Robles is to produce an integrated index to define the ecological status of Spanish Mediterranean rivers. The project from 65 dif- ferent rivers were studied. The geology of these watersheds is predominantly limestone

  12. The effect of the properties of thin layers on amplitude variation with offset (AVO) 

    E-Print Network [OSTI]

    Suyoso, Abi

    1997-01-01

    , shale/oil-sand/shale and shale/brine/shale models, the results are promising. A large deviation between the estimated AVO response and true AVO response was seen for shale/coal/shale and shale/limestone/shale models which could be attributed due to a...

  13. Pulsed atmospheric fluidized bed combustion. Technical progress report, April 1992--June 1992

    SciTech Connect (OSTI)

    Not Available

    1992-08-01

    The general specifications for a Pulsed Atmospheric Fluidized Bed Combustor Design Report (PAFBC) plant are presented. The design tasks for the PAFBC are described in the following areas: Coal/Limestone preparation and feed system; pulse combustor; fluidized bed; boiler parts; and ash handling system.

  14. Pulsed atmospheric fluidized bed combustion

    SciTech Connect (OSTI)

    Not Available

    1992-08-01

    The general specifications for a Pulsed Atmospheric Fluidized Bed Combustor Design Report (PAFBC) plant are presented. The design tasks for the PAFBC are described in the following areas: Coal/Limestone preparation and feed system; pulse combustor; fluidized bed; boiler parts; and ash handling system.

  15. Method for the production of cementitious compositions and aggregate derivatives from said compositions, and cementitious compositions and aggregates produced thereby

    DOE Patents [OSTI]

    Minnick, L. John (Box 271, Plymouth Meeting, PA 19462)

    1983-01-01

    The present invention relates to a method for preparing synthetic shaped cementitious compositions having high quality even without the addition of high energy binders, such as portland cement, through the use of the spent residue from a fluidized combustion bed of the type wherein limestone particles are suspended in a fluidized medium and sulfur oxides are captured, and pulverized coal fly ash.

  16. Volume 12, Number 10 26 October 2011

    E-Print Network [OSTI]

    Svensen, Henrik

    the influence of varying hostrock compositions on the magnitude and type of fluids generated from thermal devolatilization, with particular emphasis on carbon and halogens released from heated limestone, coal and rock and CO2 production (8000­28,000 years) dominates the fluid products from a coal sequence. In the case

  17. The effect of fractures, faults, and sheared shale zones on the hydrology of Bear Creek Burial Grounds A-South, Oak Ridge, Tennessee 

    E-Print Network [OSTI]

    Hollon, Dwight Mitchell

    1997-01-01

    in the Maynardville Limestone do not appear to be caused by dissolution; instead, they appear to be the result of a change in the local stress field due to erosion effects. Faults, both cross-valley and thrust faults, and sheared shale zones are interpreted...

  18. a0005 Geographic Overviews/Africa Central and Nilotic Sudan

    E-Print Network [OSTI]

    Nicoll, Kathleen

    been called flint, but true flint is found in chalk deposits and is a distinctive blackish color. g0025 microcrystalline form of quartz commonly found in sedimentary limestone or in chalk deposits, or otherwise any kind and the latest at the top. p0005Today the central African landscape west of the Nile River is hyperarid, with

  19. Discovering the Sinkholes of Lake

    E-Print Network [OSTI]

    Discovering the Sinkholes of Lake Huron In June of 2001, in collaboration with Great Lakes, a number of submerged sinkholes and pockmarks were also discovered on the lakebed. From about 10 glacier maximum. Karst sinkholes were created when a chemical reaction between limestone and acidic water

  20. VOLUME 43 AUGUST 2004J O U R N A L O F A P P L I E D M E T E O R O L O G Y 2004 American Meteorological Society 1069

    E-Print Network [OSTI]

    Clements, Craig

    in the Rocky Mountains. The small, high- altitude, limestone sinkholes have both experienced extreme, temperature inversions reach to 120-m heights in both sinkholes but are much stronger in the drier Rocky and a higher sensible heat flux in the Rocky Mountain sinkhole. Inversions in the small basins break up more

  1. Hydrogeologic and climatic influences on spatial and interannual variation of recharge to a tropical karst island aquifer

    E-Print Network [OSTI]

    Banner, Jay L.

    of groundwater in tropical island aquifers, such as on Barbados, are significantly influenced by tropical of rainfall. This study shows that estimates of average annual recharge to the limestone aquifer on Barbados, island aquifers, Barbados, ENSO Citation: Jones, I. C., and J. L. Banner, Hydrogeologic and climatic

  2. Professional Summary August 8, 2011

    E-Print Network [OSTI]

    Yang, Zong-Liang

    : Sedimentology, v. 55, p. 1623­1642. Fu, Qilong, and Qing, H., 2007, Neomorphism of the Ratner limestone in south in south-central Saskatchewan, Canada: Sedimentology, v. 53, p. 825­848. Fu, Qilong, Qing, H., and Bergman, Shanchi, 1999, Sedimentology of candidate sections for the Middle-Upper Cambrian boundary stratotype

  3. Professional Summary August 8, 2011

    E-Print Network [OSTI]

    Yang, Zong-Liang

    . Sedimentology and stratigraphy B. Petrology of sedimentary rocks C. Reservoir characterization Professional Work: Sedimentology, v. 55, p. 1623­1642. Fu, Qilong, and Qing, H., 2007, Neomorphism of the Ratner limestone in south in south-central Saskatchewan, Canada: Sedimentology, v. 53, p. 825­848. Fu, Qilong, Qing, H., and Bergman

  4. Combined effects of fly ash and waste ferrochromium on properties of concrete Osman Gencel a,d,,1

    E-Print Network [OSTI]

    North Texas, University of

    Combined effects of fly ash and waste ferrochromium on properties of concrete Osman Gencel a,d,,1 Accepted 24 November 2011 Keywords: Concrete durability Ferrochromium Fly ash Waste in concrete a b s t r was replaced with fly ash at the ratio of 10, 20 and 30 wt.%. Coarse limestone aggregates were replaced

  5. Sources of Water Surface water and groundwater are present throughout

    E-Print Network [OSTI]

    MacAdam, Keith

    Sources of Water Surface water and groundwater are present throughout Kentucky's 39,486 square miles. Surface water occurs as rivers, streams, ponds, lakes, and wetlands. Ground- water occurs underlain by soluble carbonate rocks (for example, limestone). Water Supply · Approximately 49 inches

  6. A New Organic Acid to Stimulate Deep Wells in Carbonate Reservoirs 

    E-Print Network [OSTI]

    Al-Douri, Ahmad F

    2014-05-28

    was obtained using both a phosphorous-based and iron-based catalyst. The rate of reaction of a 10 wt% solution of the new organic acid was measured using the rotating disk apparatus at temperatures up to 250°F. Low-permeability Indiana limestone (1-5 md...

  7. Journal of the Geological Society, London, Vol. 162, 2005, pp. 939949. Printed in Great Britain. Evolution of damage zone geometry and intensity in porous sandstone

    E-Print Network [OSTI]

    . 939 Evolution of damage zone geometry and intensity in porous sandstone: insight gained from strain materials such as sandstone or limestone, fault-related damage zones form arrays of deformation bands, which-related damage zones within the brittly deformed Jurassic Wingate Sandstone exposed in the Laramide

  8. Sedimentology of mid Permian strata of the Sublett Range, South-Central Idaho 

    E-Print Network [OSTI]

    Duree, Dana Kay

    1983-01-01

    REGIONAL STRATIGRAPHY. 20 Park City Group. West-Central Utah, Northeastern Nevada, and South- Central Idaho. Kaibab Limestone Formation. Grandeur Formation vs. Grandeur Member. . . . . . . , . . . . . Grandeur Formation Plympton Formation Murdock... in Utah, Nevada, and south-central Idaho 23 Figure 8 Fence diagram showing distribution of Park City and Phosphoria Formations in southeastern Idaho and northeastern Utah. . . . . . . . . . . . . . . . . . . Figure 9 Diagramatic dip section...

  9. Water-storage capacity controls energy partitioning and water use in karst ecosystems on the Edwards Plateau, Texas

    E-Print Network [OSTI]

    Schwinning, Susan - Department of Biology, Texas State University

    Water-storage capacity controls energy partitioning and water use in karst ecosystems of deep water. Copyright © 2012 John Wiley & Sons, Ltd. KEY WORDS evapotranspiration; energy balance of water in fractured limestone to the water available to trees. Water use is controlled by available

  10. Reduction of CO2 emissions and utilization of slag

    E-Print Network [OSTI]

    Zevenhoven, Ron

    coordinator Sanni Eloneva & Arshe Said, Researchers Helsinki University of Technology, Dept. of Energy Technology/Research group of Energy Technology and Environmental Protection (ENY) Sähkömiehentie 4 A, 02015 be achieved. The relatively high price of PCC (ten times that of raw limestone or steelmaking slag) could

  11. Atmospheric measurements of carbonyl sulfide, dimethyl sulfide, and carbon disulfide using the electron capture sulfur detector

    SciTech Connect (OSTI)

    Johnson, J.E.; Bates, T.S. [NOAA, Seattle, WA (United States)

    1993-12-01

    Measurements of atmospheric dimethyl sulfide (DMS), carbonyl sulfide (COS), and carbon disulfide (CS2) were conducted over the Atlantic Ocean on board the NASA Electra aircraft during the Chemical Instrumentation Test and Evaluation (CITE 3) project using the electron capture sulfur detector (ECD-S). The system employed cryogenic preconcentration of air samples, gas chromatographic separation, catalytic fluorination, and electron capture detection. Samples collected for DMS analysis were scrubbed of oxidants with NaOH impregnated glass fiber filters to preconcentration. The detection limits (DL) of the system for COS, DMS, and CS2 were 5, 5, and 2 ppt, respectively. COS concentrations ranged from 404 to 603 ppt with a mean of 489 ppt for measurements over the North Atlantic Ocean (31 deg N to 41 deg N), and from 395 to 437 ppt with a mean of 419 ppt for measurements over the Tropical Atlantic Ocean (11 deg S to 2 deg N). DMS concentrations in the lower marine boundary layer, below 600-m altitude, ranged from below DL to 150 ppt from flights over the North Atlantic, and from 9 to 104 ppt over the Tropical Atlantic. CS2 concentrations ranged from below DL to 29 ppt over the North Atlantic. Almost all CS2 measurements over the Tropical Atlantic were below DL.

  12. Unit Testing for Casl Architectural Specifications

    E-Print Network [OSTI]

    Sannella, Don

    and impractical activity. When only finite sets of interactions are considered, successful testing can acceptUnit Testing for Casl Architectural Specifications Patricia D.L. Machado 1 and Donald Sannella 2 1 Science, University of Edinburgh Abstract. The problem of testing modular systems against algebraic

  13. Unit Testing for Casl Architectural Specifications

    E-Print Network [OSTI]

    Sannella, Don

    and impractical activity. When only finite sets of interactions are considered, successful testing can acceptUnit Testing for Casl Architectural Specifications Patricia D.L. Machado1 and Donald Sannella2 1 Science, University of Edinburgh Abstract. The problem of testing modular systems against algebraic

  14. NOAA TECHNICAL REPORTS National Marine Fisheries Service, Circulars

    E-Print Network [OSTI]

    ,' obtaIn N! I"nl.,. otherwi e not,'dl from [)~, Technical Information Division, Environmental Science Research, Pesticide Field Station. (;ulf Hrp.'ze Fla., fiscal year 1969 By the Laboratory staff August 1970 of Cllmlllll'rt'lal Fi,heries, fiscal year 1969. By Division of EconomIC nesl'arch, Apnl 1470, I + 29 p I~ figs

  15. High-Tech Fishing Is Emptying Deep Seas, Scientists Warn

    E-Print Network [OSTI]

    Hutchings, Jeffrey A.

    High-Tech Fishing Is Emptying Deep Seas, Scientists Warn D.L. Parsell National Geographic News into farther reaches of the ocean, guided by high-tech devices that include technologies originally developed spotter planes while the high-value tuna industry in the Pacific uses helicopters and other tracking

  16. UBECHE-DE-MER" FISHERY FOR TRUK? Alan J. Beardsley

    E-Print Network [OSTI]

    . Sachithananthan of FAO and the South Pacific Islands Fisheries Development Agency visited Truk to demon- strate-month tour of duty in Micronesia at the request of the U.S. Trust Territory of the Pacific Islands gov days to remove moisture from animals. Mangrove wood pro\\lded the heat. Fig. 6 - Com plelely dl) ammals

  17. Dynamics of double layers, ion acceleration, and heat flux suppression during solar flares

    SciTech Connect (OSTI)

    Li, T. C.; Drake, J. F.; Swisdak, M.

    2014-09-20

    Observations of flare-heated electrons in the corona typically suggest confinement of electrons. The confinement mechanism, however, remains unclear. The transport of coronal hot electrons into ambient plasma was recently investigated by particle-in-cell (PIC) simulations. Electron transport was significantly suppressed by the formation of a highly localized, nonlinear electrostatic potential in the form of a double layer (DL). In this work large-scale PIC simulations are performed to explore the dynamics of DLs in larger systems where, instead of a single DL, multiple DLs are generated. The primary DL accelerates return current electrons, resulting in high velocity electron beams that interact with ambient ions. This forms a Buneman unstable system that spawns more DLs. Trapping of heated return current electrons between multiple DLs strongly suppresses electron transport. DLs also accelerate ambient ions and produce strong ion flows over an extended region. This clarifies the mechanism by which hot electrons in the corona couple to and accelerate ions to form the solar wind. These new dynamics in larger systems reveal a more likely picture of DL development and their impact on the ambient plasma in the solar corona. They are applicable to the preparation for in situ coronal space missions like the Solar Probe Plus.

  18. Microsoft Word - APP VI, Rev 3 _03-19-20

    National Nuclear Security Administration (NNSA)

    D.L. Finnegan, J.L. Thompson, C.M. Miller, P.L. Baca, L.F. Olivas, C.G. Geoffrion, D.K. Smith, W. Goishi, B.K. Esser, J.W. Meadows, N. Namboodiri, and J.F. Wild. 2001. Nevada Test...

  19. Bibliographie [AionDS 93] Aion Development System, Version 6.4, Copyright

    E-Print Network [OSTI]

    Farenc, Christelle

    .M., Scapin D.L., Preliminary Findings on the Effectiveness of Ergonomic Criteria for the Evaluation of Human Evaluation of Software Prototypes in Proceedings of the Fourth European Conference on Cognitive Ergonomics, T., Evaluation ergonomique des interfaces utilisateur : un pas vers l'automatisation, Thèse préparée au sein du

  20. Large Introductory Science Courses & Digital Libraries Laura M. Bartolo, Cathy S. Lowe

    E-Print Network [OSTI]

    Sadoway, Donald Robert

    Large Introductory Science Courses & Digital Libraries Laura M. Bartolo, Cathy S. Lowe College objectives and that the Materials Digital Library (MatDL) has potential value in supporting a virtual lab. Categories and Subject Descriptors H.3.7 [Information Storage and Retrieval]: Digital Libraries ­ collection

  1. 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

  2. Wireless-Powered Cooperative Communications via a Hybrid Relay

    E-Print Network [OSTI]

    Zhou, Xiangyun "Sean"

    - tralian Research Council's Discovery Projects funding scheme (project number DP140101133). S R AP Energy is assumed to have no embedded energy supply. Thus, it first needs to harvest energy from the signals but also charge the source with wireless energy transfer in the DL. Considering different possible

  3. Lithium Ion Production NDE

    E-Print Network [OSTI]

    .L. Wood, "Non-destructive evaluation of slot-die-coated lithium secondary battery electrodes by in) Construction of laser caliper (Keyence sensors ) system on a slot-die coater to measure thickness Thickness, and D.L. Wood, "Non-destructive evaluation of slot-die-coated lithium secondary battery electrodes by in

  4. Advanced Topics in Computer Security (3-1) Huffmire, Ted

    E-Print Network [OSTI]

    , Chapter 8] Survey with Timeline [Bacon 2007] 4 Quantum Computing Limitations [Aaronson 2008] Quantum Algorithms [Bacon 2010] 5 Quantum Key Distribution Quantum Money [Aaronson 2012] Quantum Networks [Elliott. URL: http://dl.acm.org/citation.cfm?id=2240258 [Bacon 2007] Dave Bacon and Debbie Leu

  5. COMPUTATION OF THE VIBRATION MODES OF A REISSNER-MINDLIN LAMINATED PLATE

    E-Print Network [OSTI]

    Duran, Ricardo

    COMPUTATION OF THE VIBRATION MODES OF A REISSNER-MINDLIN LAMINATED PLATE RICARDO G. DUR´AN, RODOLFO estimates including a double or- der for the vibration frequencies are obtained under appropriate vibration problem, as well. For instance, the DL3 and the MITC elements (which 2000 Mathematics Subject

  6. Equilibrium and Kinetics of Borate Adsorption-Desorption on Pyrophyllite in Aqueous Suspensions

    E-Print Network [OSTI]

    Sparks, Donald L.

    . Keren,* P. R. Grossl, and D. L. Sparks ABSTRACT This study was conducted to elucidate the dynamic Center, P.O. Box 6, Bet Dagan, Israel; P.R. Grossl and D.L. Sparks, Dep. of Plant and Soil Sciences, UnivEquilibrium and Kinetics of Borate Adsorption-Desorption on Pyrophyllite in Aqueous Suspensions R

  7. TSNo s02-roberts104537-O Microscopic and Spectroscopic Speciation of Ni in Soils in the Vicinity of a Ni Refinery.

    E-Print Network [OSTI]

    Sparks, Donald L.

    . Quantification of Ni species in these soils will be presented using a principle component analysis approach. D.R. Authors ROBERTS* UNIV. OF DELAWARE G.S. SENESI UNIV. OF DELAWARE U. KUKIER USDA-ARS, BELTSVILLE, MD R. CHANEY USDA-ARS, BELTSVILLE, MD D.L. SPARKS UNIV. OF DELAWARE For more information, please contact

  8. Communications mensuelles de l'lnstitut International dela Potasse, Berne (Suisse) Science du sol N 5/1981

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    Sparks, Donald L.

    Communications mensuelles de l'lnstitut International dela Potasse, Berne (Suisse) Section 4 of potassium in sandy soils) D.l.Sparks Professeur-adjoint de chimie-physique du sol, dc!ipartement des publications suivantes: Sparks D.L., Martens D.C., Zelazny L. W.: Plant Uptake and Leaching of applied

  9. Fish Pathology Report Lab use only: Accession number

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    Kane, Andrew S.

    __ brain __ mouth __ spleen __ thyroid __ muscle __ eye(s) __ esophagus __ pancreas __ gonad __ bone vessels) Hematocrit (%): Total plasma solids mg/dl: Gastrointestinal system: Gut scrape: (mouth, esophagus/ext. scrape: Musculo-skeletal system: Scrape/smear: (bones, muscle, cartilage; Bouin's fixative for hard

  10. Effects of level and source of copper on copper status of ewes and newborn lambs 

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    Eckert, Gregory Evan

    1997-01-01

    -Cu diets received an oral drench containing ammonium tetrathiomolybdate beginning 2 mo prior to parturition. At the time of birth lambs were assigned to either a treatment (cc- methyl-DL-p-tyrosine, AMPT) or control (saline) injection group, in order...

  11. Research article Development and usage of a NIST standard reference material

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    quantitation of human DNA§ P.M. Vallone *, M.C. Kline, D.L. Duewer, A.E. Decker, J.W. Redman, J.C. Travis, M.0 at 260 nm equals 50 ng/mL of double stranded DNA. In addition, an interlaboratory study has been

  12. GULF OF MEXICO RESEARCH PLAN SEPTEMBER 2009

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    GULF OF MEXICO RESEARCH PLAN SEPTEMBER 2009 #12;Suggested citation: Sempier, S.H., K. Havens, R. Stickney, C. Wilson, and D.L. Swann. 2009. Gulf of Mexico Research Plan. MASGP-09-024. Document design organizations. Texas · Louisiana · Florida Mississippi-Alabama #12;iGulf of Mexico Research Plan CONTENTS TABLE

  13. JID:IJA AID:7704 /FLA [m3G; v 1.131; Prn:28/03/2014; 16:10] P.1 (1-32) International Journal of Approximate Reasoning ()

    E-Print Network [OSTI]

    Baader, Franz

    (DFG) in the Collaborative Research Center 912 "Highly Adaptive Energy-Efficient Computing" (grant are fundamental for building ontologies automatically from examples. The feasibility of our approach are the main building blocks for DL knowledge bases. When it comes to building or maintaining large knowledge

  14. 2011Columbia River Basin Fish and Wildlife Program

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    2011Columbia River Basin Fish and Wildlife Program Costs Report AnnuAl RePoRt to the noRthWest Gove | Northwest Power & Conservation Council Document 2012-11 | September 2012 #12;FIsh & WIlDlIFe Costs ANNUAL REPORt tO thE NORthWESt GOvERNORS costs 08

  15. EXCEPTIONAL COVERS AND BIJECTIONS ON RATIONAL POINTS

    E-Print Network [OSTI]

    Fried, Michael

    EXCEPTIONAL COVERS AND BIJECTIONS ON RATIONAL POINTS ROBERT M. GURALNICK, THOMAS J. TUCKER proved by Davenport and Lewis [DL], Mac- Cluer [Mac], Williams [Wi], Cohen [Co], and Fried [Fr, Fr3, FGS was partially supported by NSF grant DMS-0140578. 1 #12;2 ROBERT M. GURALNICK, THOMAS J. TUCKER, AND MICHAEL E

  16. EXCEPTIONAL COVERS AND BIJECTIONS ON RATIONAL POINTS

    E-Print Network [OSTI]

    Zieve, Michael E.

    EXCEPTIONAL COVERS AND BIJECTIONS ON RATIONAL POINTS ROBERT M. GURALNICK, THOMAS J. TUCKER cases and weaker versions were previously proved by Davenport and Lewis [DL], Mac- Cluer [Mac], Williams was partially supported by NSF grant DMS-0140578. 1 #12;2 ROBERT M. GURALNICK, THOMAS J. TUCKER, AND MICHAEL E

  17. Towards a Unified Theory of Gauge and Yukawa Interactions

    E-Print Network [OSTI]

    Roepstorff, G; Vehns, Ch.

    2000-01-01

    It is suggested to combine gauge and Yukawa interactions into one expression involving the generalized Dirac operator associated with a superconnection $D+L$, $L$ being linked to the Higgs field (one doublet). We advocate a version of the Minimal Standard Model where the Higgs field gives masses to the neutrinos and a CKM matrix to the leptons.

  18. Towards a unified theory of gauge and Yukawa interactions

    E-Print Network [OSTI]

    G. Roepstorff; Ch. Vehns

    2001-10-12

    It is suggested to combine gauge and Yukawa interactions into one expression involving the generalized Dirac operator associated with a superconnection $D+L$, $L$ being linked to the Higgs field (one doublet). We advocate a version of the Minimal Standard Model where the Higgs field gives masses to the neutrinos and a CKM matrix to the leptons.

  19. REGULAR PAPER Inhibition of CO2 fixation by iodoacetamide stimulates cyclic

    E-Print Network [OSTI]

    saturating light. Such an increase in NPQ is dependent upon the proton gradient across the thylakoid membrane metabolism, therefore, providing choice conditions for the study of cyclic electron flow around PSI. Keywords is coupled to proton transfer and generates a transmembrane electrochemical proton gradient (Dl

  20. C.d.L. in Chimica e per l'Ambiente e per i Materiali, curriculum Ambiente, Energia, Rifiuti

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    Achilles, Rüdiger

    C.d.L. in Chimica e per l'Ambiente e per i Materiali, curriculum Ambiente, Energia, Rifiuti Prova.d.L. in Chimica e per l'Ambiente e per i Materiali, curriculum Ambiente, Energia, Rifiuti Prova del 18.d.L. in Chimica e per l'Ambiente e per i Materiali, curriculum Ambiente, Energia, Rifiuti Prova del 18