Sample records for multi-lateral wells defines

  1. A new approach to select multi-lateral well candidates using a fuzzy-logic based computer model

    E-Print Network [OSTI]

    Colmenares Diaz, Luis Carlos

    1998-01-01T23:59:59.000Z

    developed a new easy, simple and fast, yet technically sound, method to screen candidate wells for possible application of multi-lateral technology. The new screening method is based on the simulation of human thinking by using a fuzzy logic model...

  2. Comparing Well-Defined Manganese, Iron, Cobalt, and Nickel Ketone

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMForms AboutRESEARCHHydrosilylation Catalysts Comparing Well-Defined

  3. Qualities That Define a Well-Designed Product

    E-Print Network [OSTI]

    Pirics, Marjorie

    2011-08-08T23:59:59.000Z

    The primary objective of this research is to identify the defining characteristics of “good design” as applied to Industrial Design and to determine what specific qualities it possesses. I assessed what qualities in a product serve as attractors...

  4. Chemisorption of Aromatic Compounds on Well-Defined Palladium Surfaces: Studies by Electron Spectroscopy and Electrochemistry

    E-Print Network [OSTI]

    Li, Ding

    2010-10-12T23:59:59.000Z

    The chemisorption of aromatic compounds, derivatized with different functional groups, on well-defined Pd(111) surfaces was studied by a combination of Auger electron spectroscopy (AES), low energy electron diffraction (LEED), high resolution...

  5. Correlation of Theory and Function in Well-Defined Bimetallic Electrocatalysts - Final Report

    SciTech Connect (OSTI)

    Crooks, Richard M.

    2014-06-05T23:59:59.000Z

    The objective of this research proposal was to correlate the structure of nanoparticles that are comprised of ~100-200 atoms to their electrocatalytic function. This objective was based on the growing body of evidence suggesting that catalytic properties can be tailored through controlled synthesis of nanoparticles. What has been missing from many of these studies, and what we are contributing, is a model catalyst that is sufficiently small, structurally well-defined, and well-characterized that its function can be directly predicted by theory. Specifically, our work seeks to develop a fundamental and detailed understanding of the relationship between the structure of nanoscopic oxygen-reduction catalysts and their function. We assembled a team with expertise in theory, synthesis, and advanced characterization methods to address the primary objective of this project. We anticipated the outcomes of the study to be: (1) a better theoretical understanding of how nanoparticle structure affects catalytic properties; (2) the development of advanced, in-situ and ex-situ, atomic-scale characterization methods that are appropriate for particles containing about 100 atoms; and (3) improved synthetic methods that produce unique nanoparticle structures that can be used to test theoretical predictions. During the project period, we have made excellent progress on all three fronts.

  6. Assembly and Characterization of Well Defined High Molecular Weight Poly(p-phenylene) Polymer Brushes

    SciTech Connect (OSTI)

    Alonzo Calderon, Jose E [ORNL; Kilbey, II, S Michael [ORNL; Ankner, John Francis [ORNL; Britt, Phillip F [ORNL; Chen, Jihua [ORNL; Dadmun, Mark D [ORNL; Deng, Suxiang [ORNL; Hong, Kunlun [ORNL; Mays, Jimmy [ORNL; Messman, Jamie M [ORNL; Sumpter, Bobby [ORNL; Swader, Onome A [ORNL; Yu, Xiang [ORNL; Bredas, Jean-Luc E [ORNL; Malagoli, Massimo [ORNL

    2011-01-01T23:59:59.000Z

    The assembly and characterization of well-defined, end-tethered poly(p-phenylene) (PPP) brushes having high molecular weight, low polydispersity and high 1,4-stereoregularity are presented. The PPP brushes are formed using a precursor route that relies on either self-assembly or spin coating of high molecular weight (degrees of polymerizations 54, 146, and 238) end-functionalized poly(1,3-cyclohexadiene) (PCHD) chains from benzene solutions onto silicon or quartz substrates, followed by aromatization of the end-attached PCHD chains on the surface. The approach allows the thickness (grafting density) of the brushes to be easily varied. The dry brushes before and after aromatization are characterized by ellipsometry, atomic force microscopy, grazing angle attenuated total reflectance Fourier transform infrared spectroscopy, and UV-Vis spectroscopy. The properties of the PPP brushes are compared with those of films made using oligo-paraphenylenes and with ab initio density functional theory simulations of optical properties. Our results suggest conversion to fully aromatized, end-tethered PPP polymer brushes having effective conjugation lengths of 5 phenyl units.

  7. Assembly and Characterization ofWell-DefinedHigh-Molecular-Weight Poly(p-phenylene) Polymer Brushes

    SciTech Connect (OSTI)

    Chen, Jihua [ORNL; Dadmun, Mark D [ORNL; Mays, Jimmy [ORNL; Messman, Jamie M [ORNL; Hong, Kunlun [ORNL; Britt, Phillip F [ORNL; Sumpter, Bobby G [ORNL; Alonzo Calderon, Jose E [ORNL; Kilbey, II, S Michael [ORNL; Ankner, John Francis [ORNL; Bredas, Jean-Luc E [ORNL; Malagoli, Massimo [ORNL; Deng, Suxiang [ORNL; Swader, Onome A [ORNL; Yu, Xiang [ORNL

    2011-01-01T23:59:59.000Z

    The assembly and characterization of well-de ned, end-tethered poly- (p-phenylene) (PPP) brushes having high molecular weight, low polydispersity and high 1,4-stereoregularity are presented. The PPP brushes are formed using a precursor route that relies on either self-assembly or spin coating of high molecular weight (degrees of poly- merizations 54, 146, and 238) end-functionalized poly(1,3-cyclohexadiene) (PCHD) chains from benzene solutions onto silicon or quartz substrates, followed by aromatization of the end-attached PCHD chains on the surface. The approach allows the thickness (grafting density) of the brushes to be easily varied. The dry brushes before and after aromatization are characterized by ellipsometry, atomic force microscopy, grazing angle attenuated total re ectance Fourier transform infrared spectroscopy, and UV-Vis spectros- copy. The properties of the PPP brushes are compared with those of lms made using oligo- paraphenylenes and with ab initio density functional theory simulations of optical proper- ties. Our results suggest conversion to fully aromatized, end-tetheredPPPpolymerbrusheshaving eective conjugation lengths of 5 phenyl units.

  8. Polymer sphere lithography for solid oxide fuel cells: a route to functional, well-defined electrode structures

    E-Print Network [OSTI]

    Polymer sphere lithography for solid oxide fuel cells: a route to functional, well. Introduction Dramatic breakthroughs in the materials, particularly electrode materials, for solid oxide fuel cells (SOFCs) have been reported in recent years.1­3 Fundamental understanding of the electro- catalytic

  9. 1132 nature structural biology volume 6 number 12 december 1999 To be active, proteins must fold into well-defined three-dimen-

    E-Print Network [OSTI]

    Matouschek, Andreas

    precursor proteins normally lack all structure during import11, but some proteins assume their native formarticles 1132 nature structural biology · volume 6 number 12 · december 1999 To be active, proteins must fold into well-defined three-dimen- sional structures. However, unfolding of proteins is also

  10. Well-defined poly(oxazoline)-b-poly(acrylate) amphiphilic copolymers: from synthesis by polymer-polymer coupling to self-organization in water

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . Well-defined polymeric building blocks, -N3-P(t-BA) and -alkyne-P(MOx), bearing reactive chain end groups, are accurately characterized by MALDI-Tof spectroscopy. Then, P(MOx)n-b-P(t-BA)m are achieved

  11. Monitoring well

    DOE Patents [OSTI]

    Hubbell, Joel M. (Idaho Falls, ID); Sisson, James B. (Idaho Falls, ID)

    2002-01-01T23:59:59.000Z

    The present invention relates to a monitoring well which includes an enclosure defining a cavity and a water reservoir enclosed within the cavity and wherein the reservoir has an inlet and an outlet. The monitoring well further includes a porous housing borne by the enclosure and which defines a fluid chamber which is oriented in fluid communication with the outlet of the reservoir, and wherein the porous housing is positioned in an earthen soil location below-grade. A geophysical monitoring device is provided and mounted in sensing relation relative to the fluid chamber of the porous housing; and a coupler is selectively moveable relative to the outlet of reservoir to couple the porous housing and water reservoir in fluid communication. An actuator is coupled in force transmitting relation relative to the coupler to selectively position the coupler in a location to allow fluid communication between the reservoir and the fluid chamber defined by the porous housing.

  12. Monitoring well

    DOE Patents [OSTI]

    Hubbell, Joel M. (Idaho Falls, ID); Sisson, James B. (Idaho Falls, ID)

    1999-01-01T23:59:59.000Z

    A monitoring well including a conduit defining a passageway, the conduit having a proximal and opposite, distal end; a coupler connected in fluid flowing relationship with the passageway; and a porous housing borne by the coupler and connected in fluid flowing relation thereto.

  13. Monitoring well

    DOE Patents [OSTI]

    Hubbell, J.M.; Sisson, J.B.

    1999-06-29T23:59:59.000Z

    A monitoring well is described which includes: a conduit defining a passageway, the conduit having a proximal and opposite, distal end; a coupler connected in fluid flowing relationship with the passageway; and a porous housing borne by the coupler and connected in fluid flowing relation thereto. 8 figs.

  14. OhSU is moving into a new era. Our work will be defined by health reform and the decline in public resources, and we will be challenged in profound ways. Yet we are well

    E-Print Network [OSTI]

    Chapman, Michael S.

    health care reform and reduced public funding. OHSU laid the groundwork for success in 2007 by adoptingthe next five years OhSU is moving into a new era. Our work will be defined by health reform, and sustainability and green building practices. OHSU has been vocal and active in the health reform conversation

  15. Well Permits (District of Columbia)

    Broader source: Energy.gov [DOE]

    Well permits are required for the installation of wells in private and public space. Wells are defined as any trest hole, shaft, or soil excavation created by any means including, but not limited...

  16. Hanford wells

    SciTech Connect (OSTI)

    Chamness, M.A.; Merz, J.K.

    1993-08-01T23:59:59.000Z

    Records describing wells located on or near the Hanford Site have been maintained by Pacific Northwest Laboratory and the operating contractor, Westinghouse Hanford Company. In support of the Ground-Water Surveillance Project, portions of the data contained in these records have been compiled into the following report, which is intended to be used by those needing a condensed, tabular summary of well location and basic construction information. The wells listed in this report were constructed over a period of time spanning almost 70 years. Data included in this report were retrieved from the Hanford Envirorunental Information System (HEIS) database and supplemented with information not yet entered into HEIS. While considerable effort has been made to obtain the most accurate and complete tabulations possible of the Hanford Site wells, omissions and errors may exist. This document does not include data on lithologic logs, ground-water analyses, or specific well completion details.

  17. Dimensions of Wellness Staying Well

    E-Print Network [OSTI]

    Fernandez, Eduardo

    to protect your physical health by eating a well-balanced diet, getting plenty of physical activity-evaluation and self-assessment. Wellness involves continually learning and making changes to enhance your state) A state in which your mind is engaged in lively interaction with the world around you. Intellectual

  18. RESEARCH ARTICLE Carbon quantity defines productivity while its quality defines

    E-Print Network [OSTI]

    Vincent, Warwick F.

    RESEARCH ARTICLE Carbon quantity defines productivity while its quality defines community that dissolved organic carbon (DOC) quantity and quality differently influence bacterioplankton. The ponds were production, abundance, biomass were highest in mid-summer and correlated positively with the concentration

  19. Subsurface well apparatus

    SciTech Connect (OSTI)

    Rubbo, R.B.; Bangert, D.S.

    1993-07-13T23:59:59.000Z

    An apparatus is described for completing a subterranean well, comprising: a tubular conduit portion made up within a tubular conduit string of the type extending from a point near the surface of the earth to a remote point downwardly within said well and which is in contact with a fluid source within said well, said tubular conduit portion forming an imperforate wall and defining a central bore radially inward and further defining an exterior surface; an activating fluid body in communication with, and disposed at least in-part within, said central bore of tubular conduit portion; signal generating means including at least one sensor member coupled to said exterior surface of said tubular conduit portion for detecting circumferential stress in said imperforate wall defined by said tubular conduit portion and for producing an output signal corresponding thereto; a well bore tool disposed exteriorly of said tubular conduit portion, and including an actuating member for performing at least one desired completion function; and control means responsive to a predetermined output signal from said signal generating means for selectively activating said well bore tool and causing said actuating member to perform at least one desired completion function.

  20. A Framework for Defining Logics 

    E-Print Network [OSTI]

    Plotkin, Gordon; Honsell, Furio; Harper, Robert

    1993-01-01T23:59:59.000Z

    The Edinburgh Logical Framework (LF) provides a means to define (or present) logics. It is based on a general treatment of syntax, rules, and proofs by means of a typed ?-calculus with dependent types. Syntax is treated ...

  1. Well descriptions for geothermal drilling

    SciTech Connect (OSTI)

    Carson, C.C.; Livesay, B.J.

    1981-01-01T23:59:59.000Z

    Generic well models have been constructed for eight major geothermal resource areas. The models define representative times and costs associated with the individual operations that can be expected during drilling and completion of geothermal wells. They were made for and have been used to evaluate the impacts of potential new technologies. Their nature, their construction, and their validation are discussed.

  2. Basic concepts defining the property of ''reliability'' for energy systems

    SciTech Connect (OSTI)

    Rudenko, Yu.N.; Sin'chugov, F.I.; Smirnov, E.P.

    1981-01-01T23:59:59.000Z

    The basic concepts defining the complex property of ''reliability'' for energy systems (electric-power and pipeline systems) are considered; they include the properties, states, and events that characterize reliability as well as the reliability indices.

  3. Do Well, Be Well with Diabetes

    E-Print Network [OSTI]

    Do Well, Be Well with Diabetes Do Well, Be Well with Diabetes Lesson Topics ·WhatisDiabetes? ·Nutrition­FirstSteptoDiabetesManagement ·OneDiabetesDiet­NoLongertheSoleOption ·ManagingYourBloodGlucose ·NutritionalLabels ·DiabetesandExercise ·ForGoodMeasureatHomeandEatingOut ·DiabetesMedicines ·Preventingand

  4. Defining work from operational principles

    E-Print Network [OSTI]

    R. Gallego; J. Eisert; H. Wilming

    2015-04-20T23:59:59.000Z

    In recent years we have witnessed a concentrated effort to make sense of thermodynamics for small-scale systems. One of the main difficulties is that, at the nano-scale, thermal fluctuations of energy in general render it conceptually difficult to distinguish work from heat. Despite of several attempts to resolve this issue, many of which inspired by quantum information theory, there is still remarkable little consensus on it. In this work, we attempt to define work in a strictly operational way. In our resource-theoretic approach, agents wish to agree upon how much work needs to be invested to effect a transition from one state of an arbitrary quantum work-storage device to another. We introduce basic operational principles, and deduce from them a strict set of mathematical properties that any reasonable function quantifying such work has to fulfil. One of those generalises strong sub-additivity, a key property in quantum information theory, to the domain of thermodynamics. We show that one work quantifier fulfilling all the required properties is the difference of the non-equilibrium free energy of the initial and final state of the work-storage system. More generally, for any work quantifier fulfilling the stated properties, we can derive a quantitative second law in the sense of bounding the work that can be performed using some non-equilibrium resource by the work that is needed to create it. We furthermore discuss the role of path dependence for work quantifiers and the connection to the concept of probability-distributions of work. Our mathematical results can be formulated abstractly and carry over to other resource theories than quantum thermodynamics.

  5. Well perforating gun

    SciTech Connect (OSTI)

    Yates, D.N. Jr.; Myers, W.D.

    1991-11-26T23:59:59.000Z

    This patent describes a perforating gun for insertion in a wellbore into a formation. It includes a tubular housing and a tubular element, defining a flow passage.

  6. William Dunn Defining "Social Sustainability" at UBC

    E-Print Network [OSTI]

    Energy, Inc., a Canadian oil sands developer, defines social sustainability broadly and concisely1 William Dunn Geog 446 Defining "Social Sustainability" at UBC In 1996, Environment Canada's report, "The State of Canada's Environment" explained that social sustainability should reflect "the

  7. Complex Nanoscopic Objects from Well-defined Polymers that Contain Functional Units 

    E-Print Network [OSTI]

    Li, Ang 1982-

    2012-08-29T23:59:59.000Z

    of macromonomers through covalent bond formation and self-assembly of block copolymers via non-covalent interactions are two typical strategies to afford nanoscopic structures. Molecular brush polymers are composed of densely-grafted side chains along a polymeric...

  8. Mapping The Best Practices of XP and Project Management: Well defined approach for Project Manager

    E-Print Network [OSTI]

    Javed, Muhammad; Hussain, Shahid; Ahmad, Shakeel

    2010-01-01T23:59:59.000Z

    Software engineering is one of the most recent additions in various disciplines of system engineering. It has emerged as a key obedience of system engineering in a quick succession of time. Various Software Engineering approaches are followed in order to produce comprehensive software solutions of affordable cost with reasonable delivery timeframe with less uncertainty. All these objectives are only satisfied when project's status is properly monitored and controlled; eXtreme Programming (XP) uses the best practices of AGILE methodology and helps in development of small size software very sharply. In this paper, authors proposed that via XP, high quality software with less uncertainty and under estimated cost can be developed due to proper monitoring and controlling of project. Moreover, authors give guidelines that how activities of project management can be embedded into development life cycle of XP to enhance the quality of software products and reduce the uncertainty.

  9. Quality of life (QOL) is usually defined as a person's general well-being,

    E-Print Network [OSTI]

    Torgersen, Christian

    facilities (quality) Fire services quality Responsiveness of local government Sanitation services quality of kilo- watt hours of electricity. · The area has the world's largest deposit of trona, supplying 90 quality Hunting opportunities Outdoor recreation opportunities Medical facilities (amount) Medical

  10. Ultra-efficient, Robust and Well-defined Nano-Array based Monolithic...

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

    This presentation demonstrates how nano-array catalysts have excellent robustness, use ultra-low amounts of PGM, and can be tuned for optimum performance. deer12guo.pdf More...

  11. Well-defined ultrathin Pd films on Pt(111): electrochemical preparation and interfacial chemistry

    E-Print Network [OSTI]

    Park, Yeon Su

    2005-08-29T23:59:59.000Z

    . In both methods, between the coverage regimes studied, the growth of the Pd films follows the Stranski-Krastanov mechanism. The interfacial electrochemical properties associated with the film-to-bulk transition were characterized by conventional...

  12. A Well-Defined, Silica-Supported Tungsten Imido Alkylidene Olefin Metathesis Catalyst

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    deactivation. Keywords. Tungsten Imido Alkylidene complex.monosiloxy alkylidene tungsten surface complex syn-2, [(_

  13. Complex Nanoscopic Objects from Well-defined Polymers that Contain Functional Units

    E-Print Network [OSTI]

    Li, Ang 1982-

    2012-08-29T23:59:59.000Z

    MPS Mononuclear phagocyte system NB Norbornene x NMP Nitroxide-mediated radical polymerization NMR Nuclear magnetic resonance PAA Poly(acrylic acid) PCB Poly(carboxybetaine) PCEVE Poly(chloroethyl vinyl ethyl) PDI Polydispersity index PEG... polymerization (CRP), such as nitroxide-mediated radical polymerization (NMP),37 atom transfer radical polymerization (ATRP)38 and reversible addition-fragmentation chain transfer (RAFT),39 have attracted tremendous attention over the past two decades, due...

  14. Ultra-efficient, Robust and Well-defined Nano-Array based Monolithic

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your DensityEnergy U.S.-China Electric Vehicle and BatteryUS-EU-JapanCatalysts | Department of Energy

  15. BUFFERED WELL FIELD OUTLINES

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

    OIL & GAS FIELD OUTLINES FROM BUFFERED WELLS The VBA Code below builds oil & gas field boundary outlines (polygons) from buffered wells (points). Input well points layer must be a...

  16. Regulations of Wells (Florida)

    Broader source: Energy.gov [DOE]

    The Department of Environmental Protection regulates the construction, repair, and abandonment of wells, as well as the persons and businesses undertaking such practices. Governing boards of water...

  17. Groundwater and Wells (Nebraska)

    Broader source: Energy.gov [DOE]

    This section describes regulations relating to groundwater protection, water wells, and water withdrawals, and requires the registration of all water wells in the state.

  18. Well drilling tool

    SciTech Connect (OSTI)

    Fox, F.K.

    1981-04-07T23:59:59.000Z

    There is disclosed a turbodrill having an axial thrust bearing section which is contained within a lubricant chamber arranged within an annular space between the case and shaft of the turbodrill above the turbine section, and which is defined between means sealing between the shaft and the case which, in use of the turbodrill, are above the drilling fluid circulating therethrough.

  19. OASIS4OASIS4 User defined interpolation

    E-Print Network [OSTI]

    1 08/06/2011 OASIS4OASIS4 User ­ defined interpolation with a weight-and-address file Developer/06/2011 For each component of OASIS4, the user defines the grids, the coupling fields (transients), ... i.e. all of elements and attributes. These informations are gathered in OASIS4 internal structures, described

  20. Underground Wells (Oklahoma)

    Broader source: Energy.gov [DOE]

    Class I, III, IV and V injection wells require a permit issued by the Executive Director of the Department of Environmental Quality; Class V injection wells utilized in the remediation of...

  1. Plugging Abandoned Water Wells

    E-Print Network [OSTI]

    Lesikar, Bruce J.

    2002-02-28T23:59:59.000Z

    This brochure explains the threat of abandoned water wells to groundwater resources and the responsibility and liability of Texas property owners. It offers information to landowners on ways to plug such wells....

  2. Horizontal well circulation tool

    SciTech Connect (OSTI)

    Not Available

    1990-11-06T23:59:59.000Z

    This patent describes an apparatus for securement onto one end of a continuous length of remedial tubing introducible into a subterranean well and concentrically insertable through production tubing previously positioned within the well. The well having a deviated configuration including an entry portion communicating with a curved portion extending downwardly in the well from the entry portion, and a generally linear end portion traversable with a production formation.

  3. Does Solving Ill-Defined Physics Problems Elicit More Learning than Conventional Problem

    E-Print Network [OSTI]

    VanLehn, Kurt

    ://www.pitt.edu/~mringenb/ Abstract. Students who complete an introductory physics course often do not have a good conceptual on the use of well- defined physics problems as both the primary practice and assessment activity. While it is important for students of physics to be able to solve these well-defined problems, it is obviously

  4. Bilayer graphene quantum dot defined by topgates

    SciTech Connect (OSTI)

    Müller, André; Kaestner, Bernd; Hohls, Frank; Weimann, Thomas; Pierz, Klaus; Schumacher, Hans W., E-mail: hans.w.schumacher@ptb.de [Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig (Germany)

    2014-06-21T23:59:59.000Z

    We investigate the application of nanoscale topgates on exfoliated bilayer graphene to define quantum dot devices. At temperatures below 500 mK, the conductance underneath the grounded gates is suppressed, which we attribute to nearest neighbour hopping and strain-induced piezoelectric fields. The gate-layout can thus be used to define resistive regions by tuning into the corresponding temperature range. We use this method to define a quantum dot structure in bilayer graphene showing Coulomb blockade oscillations consistent with the gate layout.

  5. Fitting In: Extreme Corporate Wellness and Organizational Communication

    E-Print Network [OSTI]

    James, Eric Preston

    2014-07-31T23:59:59.000Z

    In this dissertation I examine the intersection of organizational communication and what I name extreme corporate wellness. I define extreme corporate wellness as the push towards more radical fitness and workplace health promotion via the exercise...

  6. Software Defined Wireless Networks: Unbridling SDNs

    E-Print Network [OSTI]

    Perkins, Dmitri

    Software Defined Wireless Networks: Unbridling SDNs Salvatore Costanzo, Laura Galluccio, Giacomo at analyzing how SDN can be beneficial in wireless infrastructureless networking environments with special emphasis on wireless personal area networks (WPAN). Furthermore, a possible approach (called SDWN

  7. Plugging Abandoned Water Wells 

    E-Print Network [OSTI]

    Lesikar, Bruce J.

    2002-02-28T23:59:59.000Z

    is one of our state?s most precious resources. Groundwater from aquifers (underground layers of porous rock or sand containing water, into which wells can be drilled) supplies over half of the water used in the state. Protecting the quality of this vital... of Licensing and Regulation (TDLR). Abandoned wells are a threat to our water supply An abandoned well is a direct channel from the surface to the aquifer below. Contaminants that enter a well are introduced directly into the aquifer with no opportunity...

  8. Penrose Well Temperatures

    SciTech Connect (OSTI)

    Christopherson, Karen

    2013-03-15T23:59:59.000Z

    Penrose Well Temperatures Geothermal waters have been encountered in several wells near Penrose in Fremont County, Colorado. Most of the wells were drilled for oil and gas exploration and, in a few cases, production. This ESRI point shapefile utilizes data from 95 wells in and around the Penrose area provided by the Colorado Oil and Gas Conservation Commission (COGCC) database at http://cogcc.state.co.us/ . Temperature data from the database were used to calculate a temperature gradient for each well. This information was then used to estimate temperatures at various depths. Projection: UTM Zone 13 NAD27 Extent: West -105.224871 East -105.027633 North 38.486269 South 38.259507 Originators: Colorado Oil and Gas Conservation Commission (COGCC) Karen Christopherson

  9. Geothermal well stimulation

    SciTech Connect (OSTI)

    Sinclair, A.R.; Pittard, F.J.; Hanold, R.J.

    1980-01-01T23:59:59.000Z

    All available data on proppants and fluids were examined to determine areas in technology that need development for 300 to 500/sup 0/F (150/sup 0/ to 265/sup 0/C) hydrothermal wells. While fluid properties have been examined well into the 450/sup 0/F range, proppants have not been previously tested at elevated temperatures except in a few instances. The latest test data at geothermal temperatures is presented and some possible proppants and fluid systems that can be used are shown. Also discussed are alternative stimulation techniques for geothermal wells.

  10. Isobaric groundwater well

    DOE Patents [OSTI]

    Hubbell, Joel M. (Idaho Falls, ID); Sisson, James B. (Idaho Falls, ID)

    1999-01-01T23:59:59.000Z

    A method of measuring a parameter in a well, under isobaric conditions, including such parameters as hydraulic gradient, pressure, water level, soil moisture content and/or aquifer properties the method as presented comprising providing a casing having first and second opposite ends, and a length between the ends, the casing supporting a transducer having a reference port; placing the casing lengthwise into the well, second end first, with the reference port vented above the water table in the well; and sealing the first end. A system is presented for measuring a parameter in a well, the system comprising a casing having first and second opposite ends, and a length between the ends and being configured to be placed lengthwise into a well second end first; a transducer, the transducer having a reference port, the reference port being vented in the well above the water table, the casing being screened across and above the water table; and a sealing member sealing the first end. In one embodiment, the transducer is a tensiometer transducer and in other described embodiments, another type transducer is used in addition to a tensiometer.

  11. Software-defined Quantum Communication Systems

    E-Print Network [OSTI]

    Travis S. Humble; Ronald J. Sadlier

    2014-10-20T23:59:59.000Z

    Quantum communication systems harness modern physics through state-of-the-art optical engineering to provide revolutionary capabilities. An important concern for quantum communication engineering is designing and prototyping these systems to evaluate proposed capabilities. We apply the paradigm of software-defined communication for engineering quantum communication systems to facilitate rapid prototyping and prototype comparisons. We detail how to decompose quantum communication terminals into functional layers defining hardware, software, and middleware concerns, and we describe how each layer behaves. Using the super-dense coding protocol as an example, we describe implementations of both the transmitter and receiver, and we present results from numerical simulations of the behavior. We conclude that software-defined quantum communication provides a robust framework in which to explore the large design space offered by this new regime of communication.

  12. Thermal indicator for wells

    DOE Patents [OSTI]

    Gaven, Jr., Joseph V. (Oakton, VA); Bak, Chan S. (Newbury Park, CA)

    1983-01-01T23:59:59.000Z

    Minute durable plate-like thermal indicators are employed for precision measuring static and dynamic temperatures of well drilling fluids. The indicators are small enough and sufficiently durable to be circulated in the well with drilling fluids during the drilling operation. The indicators include a heat resistant indicating layer, a coacting meltable solid component and a retainer body which serves to unitize each indicator and which may carry permanent indicator identifying indicia. The indicators are recovered from the drilling fluid at ground level by known techniques.

  13. Spacer for deep wells

    SciTech Connect (OSTI)

    Klein, G. D.

    1984-10-23T23:59:59.000Z

    A spacer for use in a deep well that is to have a submersible pump situated downhole and with a string of tubing attached to the pump for delivering the pumped fluid. The pump is electrically driven, and power is supplied via an armored cable which parallels the string of tubing. Spacers are clamped to the cable and have the tubing running through an eccentrically located passage in each spacer. The outside dimensions of a spacer fit freely inside any casing in the well.

  14. OFC Review 2013 Software Defined Network (SDN)

    E-Print Network [OSTI]

    California at Davis, University of

    and transmission rate w/o hardware change Dedicated PCE to scale OpenFlow architectutre #12;Network ArchitectureOFC Review 2013 Software Defined Network (SDN) M. Farhan Habib May 10, 2013 Friday Group Meeting Networks Lab @ UCD #12;NTu3F: SDN in Today's Network #12;SDN: What and Why · Traditional distributed

  15. Well valve control system

    SciTech Connect (OSTI)

    Schwendemann, K.L.; McCracken, O.W.; Mondon, C.G.; Wortham, L.C.

    1987-01-13T23:59:59.000Z

    A system is described for controlling well testing through an upper and lower test string with a subsea test tree connected therebetween and latch means to release the upper test string from the subsea test tree comprising: a. first and second selectively programmable microprocessor means; b. means for storing system operating limits in each microprocessor means; c. means for changing the operating limits in response to changes in well conditions; d. means for communicating operating fluid pressure to the subsurface test tree and the latch means; e. solenoid pilot valves controlling the flow of the operating fluid pressure to the subsea test tree and the latch means; f. the first microprocessor means located at a central control console; g. the second microprocessor means located near the solenoid valves; h. means for transmitting signals between the first and second microprocessor means and validating the accuracy of the signals; and i. electronic circuits to control operation of the solenoid valves in response to validated signals.

  16. Shock Chlorination of Wells

    E-Print Network [OSTI]

    McFarland, Mark L.; Dozier, Monty

    2003-06-11T23:59:59.000Z

    method) will be necessary to ensure the safety of the water supply. Shock chlorination introduces very high levels of chlorine into a water system. During the disinfec- tion process, water from the system is not suitable for consumption and neither people... system or other continuous disinfection sys- tem. For more information about wellhead protection, see the Tex-A-Syst rural water well assessment pub- lications (B-6023 through B-6032) available from Texas Cooperative Extension. 3 This publication...

  17. Decontaminating Flooded Wells

    E-Print Network [OSTI]

    Boellstorff, Diana; Dozier, Monty; Provin, Tony; Dictson, Nikkoal; McFarland, Mark L.

    2005-09-30T23:59:59.000Z

    ER-011 6-06 Mark L. McFarland, Associate Professor and Extension Water Resources Specialist; Diane E. Boellstorff, Program Specialist Water Quality; Tony L. Provin, Associate Professor and Extension Soil Chemist; Monty C. Dozier, Assistant... and local hospitals may also test water samples for bacteria. The cost of the test ranges from $8 to $30, depending on the lab. Well disinfection does not eliminate hydrocarbons (fuels, oils), pesticides, heavy metals or other types of nonbiological...

  18. Term definable classes of Boolean functions and frame definability in modal logic

    E-Print Network [OSTI]

    Földes, Stephan

    is a set function P(W) P(W). The truth condition for the modal operator in a model M based on a Scott. Hella, J. Kivel¨a Abstract. We establish a connection between term definability of Boolean functions if the corresponding class of Scott-Montague frames is defined by the translations of these functional terms, and vice

  19. Dynamically defined measures and equilibrium states

    E-Print Network [OSTI]

    Ivan Werner

    2014-11-09T23:59:59.000Z

    A technique of dynamically defined measures is developed and its relation to the theory of equilibrium states is shown. The technique uses Caratheodory's method and the outer measure introduced in (I. Werner, Math. Proc. Camb. Phil. Soc. 140 (2) (2006) 333-347). As an application, equilibrium states for contractive Markov systems (I. Werner, J. London Math. Soc. 71 (2005), no. 1, 236-258) are obtained.

  20. Defined Benefit Eligible Disability Benefit Program Summary

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration wouldDECOMPOSITIONPortal Decision Support forDeep InsightsLANS Defined

  1. Template:Define | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries PvtStratosolar Jump to:HoldingsTechint Spasource History ViewDatabusNavDefine

  2. Development Wells At Salt Wells Area (Nevada Bureau of Mines...

    Open Energy Info (EERE)

    Salt Wells Area (Nevada Bureau of Mines and Geology, 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Development Wells At Salt Wells Area...

  3. Well Monitoring Systems for EGS

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

    cost for well stimulation and improves reservoir tracking. * Well stimulation through hydro-fracturing is very expensive - Our system can be in the well before stimulation,...

  4. Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning

    E-Print Network [OSTI]

    Kjellström, Hedvig

    Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning Bel¨oningsbaserad Inl¨arning Defining the Problem Known Environment Unknown Environment Improvements 1 Defining the Problem Framework Role of Reward Simplifying Assumptions Central Concepts 2 Known Environment Bellmans

  5. Geothermal well log interpretation state of the art. Final report

    SciTech Connect (OSTI)

    Sanyal, S.K.; Wells, L.E.; Bickham, R.E.

    1980-01-01T23:59:59.000Z

    An in-depth study of the state of the art in Geothermal Well Log Interpretation has been made encompassing case histories, technical papers, computerized literature searches, and actual processing of geothermal wells from New Mexico, Idaho, and California. A classification scheme of geothermal reservoir types was defined which distinguishes fluid phase and temperature, lithology, geologic province, pore geometry, salinity, and fluid chemistry. Major deficiencies of Geothermal Well Log Interpretation are defined and discussed with recommendations of possible solutions or research for solutions. The Geothermal Well Log Interpretation study and report has concentrated primarily on Western US reservoirs. Geopressured geothermal reservoirs are not considered.

  6. Single-Well and Cross-Well Seismic At Salt Wells Area (Bureau...

    Open Energy Info (EERE)

    Seismic At Salt Wells Area (Bureau of Land Management, 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Single-Well and Cross-Well Seismic...

  7. Deciding Definability by Deterministic Regular Expressions

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    (DTD) [5] and XML Schema Definition (XSD) [10], both developed by the World Wide Web Consortium, do as well. Intuitively, a regular expression is deterministic if, when reading a word from left to right. For example, the expression (a + b) b(a + b) is not deterministic, because if we read a word that starts

  8. Defining a Standard Metric for Electricity Savings

    SciTech Connect (OSTI)

    Brown, Marilyn; Akbari, Hashem; Blumstein, Carl; Koomey, Jonathan; Brown, Richard; Calwell, Chris; Carter, Sheryl; Cavanagh, Ralph; Chang, Audrey; Claridge, David; Craig, Paul; Diamond, Rick; Eto, Joseph H.; Fulkerson, William; Gadgil, Ashok; Geller, Howard; Goldemberg, Jose; Goldman, Chuck; Goldstein, David B.; Greenberg, Steve; Hafemeister, David; Harris, Jeff; Harvey, Hal; Heitz, Eric; Hirst, Eric; Hummel, Holmes; Kammen, Dan; Kelly, Henry; Laitner, Skip; Levine, Mark; Lovins, Amory; Masters, Gil; McMahon, James E.; Meier, Alan; Messenger, Michael; Millhone, John; Mills, Evan; Nadel, Steve; Nordman, Bruce; Price, Lynn; Romm, Joe; Ross, Marc; Rufo, Michael; Sathaye, Jayant; Schipper, Lee; Schneider, Stephen H; Sweeney, James L; Verdict, Malcolm; Vorsatz, Diana; Wang, Devra; Weinberg, Carl; Wilk, Richard; Wilson, John; Worrell, Ernst

    2009-03-01T23:59:59.000Z

    The growing investment by governments and electric utilities in energy efficiency programs highlights the need for simple tools to help assess and explain the size of the potential resource. One technique that is commonly used in this effort is to characterize electricity savings in terms of avoided power plants, because it is easier for people to visualize a power plant than it is to understand an abstraction such as billions of kilowatt-hours. Unfortunately, there is no standardization around the characteristics of such power plants. In this letter we define parameters for a standard avoided power plant that have physical meaning and intuitive plausibility, for use in back-of-the-envelope calculations. For the prototypical plant this article settles on a 500 MW existing coal plant operating at a 70percent capacity factor with 7percent T&D losses. Displacing such a plant for one year would save 3 billion kW h per year at the meter and reduce emissions by 3 million metric tons of CO2 per year. The proposed name for this metric is the Rosenfeld, in keeping with the tradition among scientists of naming units in honor of the person most responsible for the discovery and widespread adoption of the underlying scientific principle in question--Dr. Arthur H. Rosenfeld.

  9. Well-pump alignment system

    DOE Patents [OSTI]

    Drumheller, Douglas S. (Cedar Crest, NM)

    1998-01-01T23:59:59.000Z

    An improved well-pump for geothermal wells, an alignment system for a well-pump, and to a method for aligning a rotor and stator within a well-pump, wherein the well-pump has a whistle assembly formed at a bottom portion thereof, such that variations in the frequency of the whistle, indicating misalignment, may be monitored during pumping.

  10. Representative well models for eight geothermal-resource areas

    SciTech Connect (OSTI)

    Carson, C.C.; Lin, Y.T.; Livesay, B.J.

    1983-02-01T23:59:59.000Z

    Representative well models have been constructed for eight major geothermal-resource areas. The models define representative times and costs associated with the individual operations that can be expected during drilling and completion of geothermal wells. The models were made for and have been used to evaluate the impacts of potential new technologies. The nature, construction, and validation of the models are presented.

  11. Well-pump alignment system

    DOE Patents [OSTI]

    Drumheller, D.S.

    1998-10-20T23:59:59.000Z

    An improved well-pump for geothermal wells, an alignment system for a well-pump, and to a method for aligning a rotor and stator within a well-pump are disclosed, wherein the well-pump has a whistle assembly formed at a bottom portion thereof, such that variations in the frequency of the whistle, indicating misalignment, may be monitored during pumping. 6 figs.

  12. Defining Conditions for Maximizing Bioreduction of Uranium

    SciTech Connect (OSTI)

    David C. White; Aaron D. Peacock; Yun-Juan Chang; Roland Geyer; Philip E. Long; Jonathan D. Istok; Amanda N.; R. Todd Anderson; Dora Ogles

    2004-03-17T23:59:59.000Z

    Correlations between modifying electron donor and acceptor accessibility, the in-situ microbial community, and bioreduction of Uranium at the FRC and UMTRA research sites indicated that significant modifications in the rate, amount and by inference the potential stability of immobilized Uranium are feasible in these environments. The in-situ microbial community at these sites was assessed with a combination of lipid and real-time molecular techniques providing quantitative insights of effects of electron donor and manipulations. Increased (9mM in 2003 vs 3mM 2002) donor amendment at the Old Rifle site resulted in the stimulation of anaerobic conditions downgradient of the injection gallery. Biomass within the test plot increased relative to the control well at 17 feet. Q-PCR specific for IRB/SRB showed increased copy numbers within the test plot and was the highest at the injection gallery. Q-PCR specific for Geobacter sp. showed increased copy numbers within the test plot but further downgradient from the injection gallery than the SRB/IRB. DNA and Lipid analysis confirm changes in the microbial community structure due to donor addition. See also the PNNL (Long) and UMASS (Anderson) posters for more information about this site.

  13. REDUCTIONS WITHOUT REGRET: DEFINING THE NEEDED CAPABILITIES

    SciTech Connect (OSTI)

    Swegle, J.; Tincher, D.

    2013-09-10T23:59:59.000Z

    This is the second of three papers (in addition to an introductory summary) aimed at providing a framework for evaluating future reductions or modifications of the U.S. nuclear force, first by considering previous instances in which nuclear-force capabilities were eliminated; second by looking forward into at least the foreseeable future at the features of global and regional deterrence (recognizing that new weapon systems currently projected will have expected lifetimes stretching beyond our ability to predict the future); and third by providing examples of past or possible undesirable outcomes in the shaping of the future nuclear force, as well as some closing thoughts for the future. This paper begins with a discussion of the current nuclear force and the plans and procurement programs for the modernization of that force. Current weapon systems and warheads were conceived and built decades ago, and procurement programs have begun for the modernization or replacement of major elements of the nuclear force: the heavy bomber, the air-launched cruise missile, the ICBMs, and the ballistic-missile submarines. In addition, the Nuclear Weapons Council has approved a new framework for nuclear-warhead life extension ? not fully fleshed out yet ? that aims to reduce the current number of nuclear explosives from seven to five, the so-called ?3+2? vision. This vision includes three interoperable warheads for both ICBMs and SLBMs (thus eliminating one backup weapon) and two warheads for aircraft delivery (one gravity bomb and one cruise-missile, eliminating a second backup gravity bomb). This paper also includes a discussion of the current and near-term nuclear-deterrence mission, both global and regional, and offers some observations on future of the strategic deterrence mission and the challenges of regional and extended nuclear deterrence.

  14. Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning

    E-Print Network [OSTI]

    Kjellström, Hedvig

    Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning Bel¨oningsbaserad Inl¨arning #12;Defining the Problem Known Environment Unknown Environment Improvements 1 Defining the Problem Framework Role of Reward Simplifying Assumptions Central Concepts 2 Known Environment Bellman

  15. Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning

    E-Print Network [OSTI]

    Kjellström, Hedvig

    Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning Bel¨oningsbaserad Inl¨arning #12;Defining the Problem Known Environment Unknown Environment Improvements 1 Defining the Problem Framework Role of Reward Simplifying Assumptions Central Concepts 2 Known Environment Bellmans

  16. Genome assortment, not serogroup, defines Vibrio cholerae pandemic strains

    SciTech Connect (OSTI)

    Brettin, Thomas S [Los Alamos National Laboratory; Bruce, David C [Los Alamos National Laboratory; Challacombe, Jean F [Los Alamos National Laboratory; Detter, John C [Los Alamos National Laboratory; Han, Cliff S [Los Alamos National Laboratory; Munik, A C [Los Alamos National Laboratory; Chertkov, Olga [Los Alamos National Laboratory; Meincke, Linda [Los Alamos National Laboratory; Saunders, Elizabeth [Los Alamos National Laboratory; Choi, Seon Y [SEOUL NATL. UNIV.; Haley, Bradd J [U. MARYLAND; Taviani, Elisa [U. MARYLAND; Jeon, Yoon - Seong [INTL. VACCINE INST. SEOUL; Kim, Dong Wook [INTL. VACCINE INST. SEOUL; Lee, Jae - Hak [SEOUL NATL. UNIV.; Walters, Ronald A [PNNL; Hug, Anwar [NATL. INST. CHOLERIC ENTERIC DIS.; Colwell, Rita R [U. MARYLAND

    2009-01-01T23:59:59.000Z

    Vibrio cholerae, the causative agent of cholera, is a bacterium autochthonous to the aquatic environment, and a serious public health threat. V. cholerae serogroup O1 is responsible for the previous two cholera pandemics, in which classical and El Tor biotypes were dominant in the 6th and the current 7th pandemics, respectively. Cholera researchers continually face newly emerging and re-emerging pathogenic clones carrying combinations of new serogroups as well as of phenotypic and genotypic properties. These genotype and phenotype changes have hampered control of the disease. Here we compare the complete genome sequences of 23 strains of V. cholerae isolated from a variety of sources and geographical locations over the past 98 years in an effort to elucidate the evolutionary mechanisms governing genetic diversity and genesis of new pathogenic clones. The genome-based phylogeny revealed 12 distinct V. cholerae phyletic lineages, of which one, designated the V. cholerae core genome (CG), comprises both O1 classical and EI Tor biotypes. All 7th pandemic clones share nearly identical gene content, i.e., the same genome backbone. The transition from 6th to 7th pandemic strains is defined here as a 'shift' between pathogenic clones belonging to the same O1 serogroup, but from significantly different phyletic lineages within the CG clade. In contrast, transition among clones during the present 7th pandemic period can be characterized as a 'drift' between clones, differentiated mainly by varying composition of laterally transferred genomic islands, resulting in emergence of variants, exemplified by V.cholerae serogroup O139 and V.cholerae O1 El Tor hybrid clones that produce cholera toxin of classical biotype. Based on the comprehensive comparative genomics presented in this study it is concluded that V. cholerae undergoes extensive genetic recombination via lateral gene transfer, and, therefore, genome assortment, not serogroup, should be used to define pathogenic V. cholerae clones.

  17. Thermal well-test method

    DOE Patents [OSTI]

    Tsang, Chin-Fu (Albany, CA); Doughty, Christine A. (Berkeley, CA)

    1985-01-01T23:59:59.000Z

    A well-test method involving injection of hot (or cold) water into a groundwater aquifer, or injecting cold water into a geothermal reservoir. By making temperature measurements at various depths in one or more observation wells, certain properties of the aquifer are determined. These properties, not obtainable from conventional well test procedures, include the permeability anisotropy, and layering in the aquifer, and in-situ thermal properties. The temperature measurements at various depths are obtained from thermistors mounted in the observation wells.

  18. Horizontal well turbulizer and method

    SciTech Connect (OSTI)

    Hopmann, M.E.

    1990-03-20T23:59:59.000Z

    This patent describes an apparatus for securement onto one end of a continuous length of remedial tubing introduceable into a subterranean well and concentrically insertable through production tubing previously positioned within the well. The well having a deviated configuration including an entry portion communicating with a curved portion extending downwardly in the well from the entry portion, and a generally linear end portion traversable with a production formation.

  19. Well having inhibited microbial growth

    DOE Patents [OSTI]

    Lee, Brady D.; Dooley, Kirk J.

    2006-08-15T23:59:59.000Z

    The invention includes methods of inhibiting microbial growth in a well. A packing material containing a mixture of a first material and an antimicrobial agent is provided to at least partially fill a well bore. One or more access tubes are provided in an annular space around a casing within the well bore. The access tubes have a first terminal opening located at or above a ground surface and have a length that extends from the first terminal opening at least part of the depth of the well bore. The access tubes have a second terminal opening located within the well bore. An antimicrobial material is supplied into the well bore through the first terminal opening of the access tubes. The invention also includes well constructs.

  20. Thermal well-test method

    DOE Patents [OSTI]

    Tsang, C.F.; Doughty, C.A.

    1984-02-24T23:59:59.000Z

    A well-test method involving injection of hot (or cold) water into a groundwater aquifer, or injecting cold water into a geothermal reservoir is disclosed. By making temperature measurements at various depths in one or more observation wells, certain properties of the aquifer are determined. These properties, not obtainable from conventional well test procedures, include the permeability anisotropy, and layering in the aquifer, and in-situ thermal properties. The temperature measurements at various depths are obtained from thermistors mounted in the observation wells.

  1. Well Monitoring System for EGS

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

    Peer Review Well Monitoring Systems for EGS Principal Investigator Randy Normann Perma Works LLC May 19, 2010 This presentation does not contain any proprietary confidential, or...

  2. Obesity is defined as an excess accumulation of adipose tissue. It occurs in mammalian

    E-Print Network [OSTI]

    Cai, Long

    Obesity is defined as an excess accumulation of adipose tissue. It occurs in mammalian species when, obesity is now at epidemic proportions in the developed world1 , as well as in many developing countries2 . The links between obesity, type 2 diabetes and cardiovascular diseases have long been appreciated. However

  3. Optimization of fractured well performance of horizontal gas wells

    E-Print Network [OSTI]

    Magalhaes, Fellipe Vieira

    2009-06-02T23:59:59.000Z

    In low-permeability gas reservoirs, horizontal wells have been used to increase the reservoir contact area, and hydraulic fracturing has been further extending the contact between wellbores and reservoirs. This thesis presents an approach...

  4. The Literature Search Process: An Overview 1. Define your topic.

    E-Print Network [OSTI]

    Abolmaesumi, Purang

    for eradicating Helicobacter pylori? Patient Description Intervention Comparison Intervention Expected Outcome Eradicating Helicobacter pylori Defining your topic with a specific question will make it easier to formulate

  5. Bitumen production through a horizontal well

    SciTech Connect (OSTI)

    Livesey, D.B.; Toma, P.

    1987-02-03T23:59:59.000Z

    This patent describes a method for thermal stimulation and production of a viscous hydrocarbon from a reservoir having a productive layer which retains the hydrocarbon until the latter is made flowable by contact with a hot stimulating medium. The method includes the steps of: forming a borehole having a substantially horizontal segment which transverses the productive layer, registering a well completion in the borehole which includes; an elongated perforate well liner, a fluid conduit extending through the liner and having a discharge end, and a well head at the liner upper end communicated with the fluid conduit, positioning a variable length flow diverter in the liner adjacent to the fluid conduit discharge end, whereby to define a quasi-barrier in the liner which is pervious to passage of the hot stimulating medium, and which divides the liner into injection and production segments respectively, heating the productive layer about the substantially horizontal segment of the elongated liner, introducing a pressurized stream of the hot stimulant through the fluid conduit and into the liner injection segment, and producing hydrocarbon emulsion which flows into the liner production segment.

  6. Chemical analyses of selected thermal springs and wells in Wyoming

    SciTech Connect (OSTI)

    Heasler, H.P.

    1984-06-01T23:59:59.000Z

    Basic chemical data for 27 selected thermal well and springs in Wyoming are presented. The samples were gathered from 1979 through 1982 in an effort to define geothermal resources in Wyoming. The basic data for the 27 analyzed samples generally include location, temperature, flow, date analyzed, and a description of what the sample is from. The chemical analyses for the sample are listed.

  7. Quantum well multijunction photovoltaic cell

    DOE Patents [OSTI]

    Chaffin, R.J.; Osbourn, G.C.

    1983-07-08T23:59:59.000Z

    A monolithic, quantum well, multilayer photovoltaic cell comprises a p-n junction comprising a p-region on one side and an n-region on the other side, each of which regions comprises a series of at least three semiconductor layers, all p-type in the p-region and all n-type in the n-region; each of said series of layers comprising alternating barrier and quantum well layers, each barrier layer comprising a semiconductor material having a first bandgap and each quantum well layer comprising a semiconductor material having a second bandgap when in bulk thickness which is narrower than said first bandgap, the barrier layers sandwiching each quantum well layer and each quantum well layer being sufficiently thin that the width of its bandgap is between said first and second bandgaps, such that radiation incident on said cell and above an energy determined by the bandgap of the quantum well layers will be absorbed and will produce an electrical potential across said junction.

  8. TESLA: A Formally Defined Event Specification Language Gianpaolo Cugola

    E-Print Network [OSTI]

    Cugola, Gianpaolo

    TESLA: A Formally Defined Event Specification Language Gianpaolo Cugola Dip. di Elettronica e to clearly state how the system should behave. Moving from these premises, we present TESLA, a complex event specification language. Each TESLA rule considers incoming data items as notifi- cations of events and defines

  9. Defined Contribution Pensions: Plan Rules, Participant Choices, and the

    E-Print Network [OSTI]

    Chen, Yiling

    Defined Contribution Pensions: Plan Rules, Participant Choices, and the Path of Least Resistance support from the MacArthur Foundation and the Sloan Foundation. #12;2 Defined Contribution Pensions: Plan Rules, Participant Choices, and the Path of Least Resistance Abstract: We assess the impact on savings

  10. Pumpernickel Valley Geothermal Project Thermal Gradient Wells

    SciTech Connect (OSTI)

    Z. Adam Szybinski

    2006-01-01T23:59:59.000Z

    The Pumpernickel Valley geothermal project area is located near the eastern edge of the Sonoma Range and is positioned within the structurally complex Winnemucca fold and thrust belt of north-central Nevada. A series of approximately north-northeast-striking faults related to the Basin and Range tectonics are superimposed on the earlier structures within the project area, and are responsible for the final overall geometry and distribution of the pre-existing structural features on the property. Two of these faults, the Pumpernickel Valley fault and Edna Mountain fault, are range-bounding and display numerous characteristics typical of strike-slip fault systems. These characteristics, when combined with geophysical data from Shore (2005), indicate the presence of a pull-apart basin, formed within the releasing bend of the Pumpernickel Valley – Edna Mountain fault system. A substantial body of evidence exists, in the form of available geothermal, geological and geophysical information, to suggest that the property and the pull-apart basin host a structurally controlled, extensive geothermal field. The most evident manifestations of the geothermal activity in the valley are two areas with hot springs, seepages, and wet ground/vegetation anomalies near the Pumpernickel Valley fault, which indicate that the fault focuses the fluid up-flow. There has not been any geothermal production from the Pumpernickel Valley area, but it was the focus of a limited exploration effort by Magma Power Company. In 1974, the company drilled one exploration/temperature gradient borehole east of the Pumpernickel Valley fault and recorded a thermal gradient of 160oC/km. The 1982 temperature data from five unrelated mineral exploration holes to the north of the Magma well indicated geothermal gradients in a range from 66 to 249oC/km for wells west of the fault, and ~283oC/km in a well next to the fault. In 2005, Nevada Geothermal Power Company drilled four geothermal gradient wells, PVTG-1, -2, -3, and -4, and all four encountered geothermal fluids. The holes provided valuable water geochemistry, supporting the geothermometry results obtained from the hot springs and Magma well. The temperature data gathered from all the wells clearly indicates the presence of a major plume of thermal water centered on the Pumpernickel Valley fault, and suggests that the main plume is controlled, at least in part, by flow from this fault system. The temperature data also defines the geothermal resource with gradients >100oC/km, which covers an area a minimum of 8 km2. Structural blocks, down dropped with respect to the Pumpernickel Valley fault, may define an immediate reservoir. The geothermal system almost certainly continues beyond the recently drilled holes and might be open to the east and south, whereas the heat source responsible for the temperatures associated with this plume has not been intersected and must be at a depth greater than 920 meters (depth of the deepest well – Magma well). The geological and structural setting and other characteristics of the Pumpernickel Valley geothermal project area are markedly similar to the portions of the nearby Dixie Valley geothermal field. These similarities include, among others, the numerous, unexposed en echelon faults and large-scale pull-apart structure, which in Dixie Valley may host part of the geothermal field. The Pumpernickel Valley project area, for the majority of which Nevada Geothermal Power Company has geothermal rights, represents a geothermal site with a potential for the discovery of a relatively high temperature reservoir suitable for electric power production. Among locations not previously identified as having high geothermal potential, Pumpernickel Valley has been ranked as one of four sites with the highest potential for electrical power production in Nevada (Shevenell and Garside, 2003). Richards and Blackwell (2002) estimated the total heat loss and the preliminary production capacity for the entire Pumpernickel Valley geothermal system to be at 35MW. A more conservative estimate, for

  11. ADVANCED CEMENTS FOR GEOTHERMAL WELLS

    SciTech Connect (OSTI)

    SUGAMA,T.

    2007-01-01T23:59:59.000Z

    Using the conventional well cements consisting of the calcium silicate hydrates (CaO-SiO{sub 2}-H{sub 2}O system) and calcium aluminum silicate hydrates (CaO-Al{sub 2}O{sub 3}-SiO{sub 2}-H{sub 2}O system) for the integrity of geothermal wells, the serious concern confronting the cementing industries was their poor performance in mechanically supporting the metallic well casing pipes and in mitigating the pipe's corrosion in very harsh geothermal reservoirs. These difficulties are particularly acute in two geological regions: One is the deep hot downhole area ({approx} 1700 m depth at temperatures of {approx} 320 C) that contains hyper saline water with high concentrations of CO{sub 2} (> 40,000 ppm) in conjunction with {approx} 100 ppm H{sub 2}S at a mild acid of pH {approx} 5.0; the other is the upper well region between the well's surface and {approx} 1000 m depth at temperatures up to 200 C. The specific environment of the latter region is characterized by highly concentrated H{sub 2}SO{sub 4} (pH < 1.5) brine containing at least 5000 ppm CO{sub 2}. When these conventional cements are emplaced in these harsh environments, their major shortcoming is their susceptibility to reactions with hot CO{sub 2} and H{sub 2}SO4, thereby causing their deterioration brought about by CO{sub 2}-catalyzed carbonation and acid-initiated erosion. Such degradation not only reduced rapidly the strength of cements, lowering the mechanical support of casing pipes, but also increased the extent of permeability of the brine through the cement layer, promoting the rate of the pipe's corrosion. Severely carbonated and acid eroded cements often impaired the integrity of a well in less than one year; in the worst cases, casings have collapsed within three months, leading to the need for costly and time-consuming repairs or redrilling operations. These were the reasons why the geothermal well drilling and cementing industries were concerned about using conventional well cements, and further their deterioration was a major impediment in expediting the development of geothermal energy resources.

  12. Sampling for Bacteria in Wells

    E-Print Network [OSTI]

    Lesikar, Bruce J.

    2001-11-15T23:59:59.000Z

    Sampling for Bacteria in Wells E-126 11/01 Water samples for bacteria tests must always be col- lected in a sterile container. The procedure for collect- ing a water sample is as follows: 1. Obtain a sterile container from a Health Department...

  13. Process for cementing geothermal wells

    DOE Patents [OSTI]

    Eilers, Louis H. (Inola, OK)

    1985-01-01T23:59:59.000Z

    A pumpable slurry of coal-filled furfuryl alcohol, furfural, and/or a low molecular weight mono- or copolymer thereof containing, preferably, a catalytic amount of a soluble acid catalyst is used to cement a casing in a geothermal well.

  14. Environmental Benefits and Performance Measures: Defining National Ecosystem Restoration and

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Environmental Benefits and Performance Measures: Defining National Ecosystem Restoration and how of Engineers #12;The Issue The Corps created an ecosystem restoration mission out of congressional authorities ecosystem services enough to reduce national welfare. Implementing projects under that mission requires

  15. Definability and Automorphisms of the Computably Enumerable Sets

    E-Print Network [OSTI]

    Koellner, Peter

    of determining which classes of Turing degrees are definable in the languages of Turing reduction and set.e.) degrees are a particularly important class of Turing degrees. They have been studied extensively since

  16. A new well surveying tool

    E-Print Network [OSTI]

    Haghighi, Manuchehr Mehdizabeh

    1966-01-01T23:59:59.000Z

    A NEW WELL SURVEYING TOOL A Thesis By MANUCHEHR MEHDIZABEH HAGHIGHI Submitted to the Graduate College of the Texas ANM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Major Subject: PETROLEUM... by Surveying Device for S and 19 , N and 41 . 21 3. Comparison of Measured Angles and Angles Indicated by Surveying Device for NE snd 9 , W and 45 . . . . . . . ~ 22 ABSTRNl T Ever since the advent of rotary drilling the petroleum industry has been...

  17. Sampling for Bacteria in Wells 

    E-Print Network [OSTI]

    Lesikar, Bruce J.

    2001-11-15T23:59:59.000Z

    Sampling for Bacteria in Wells E-126 11/01 Water samples for bacteria tests must always be col- lected in a sterile container. The procedure for collect- ing a water sample is as follows: 1. Obtain a sterile container from a Health Department... immediately after collecting water sample. Refrigerate the sample and transport it to the laborato- ry (in an ice chest) as soon after collection as possible (six hours is best, but up to 30 hours). Many labs will not accept bacteria samples on Friday so check...

  18. Well Deepening | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTri GlobalJump to: navigation,Goff, 2002) |Weedpatch,Welcome NewWell

  19. Production Wells | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal PwerPerkins County, Nebraska:Precourt Institute for EnergyWister|Production Wells (Redirected

  20. Observation Wells | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLuOpenNorth AmericaNorthwestOakdale Electric CoopWells Jump to:

  1. Production Well Performance Enhancement using Sonication Technology

    SciTech Connect (OSTI)

    Adewumi, Michael A; Ityokumbul, M Thaddeus; Watson, Robert W; Eltohami, Eltohami; Farias, Mario; Heckman, Glenn; Houlihan, Brendan; Karoor, Samata Prakash; Miller, Bruce G; Mohammed, Nazia; Olanrewaju, Johnson; Ozdemir, Mine; Rejepov, Dautmamed; Sadegh, Abdallah A; Quammie, Kevin E; Zaghloul, Jose; Hughes, W Jack; Montgomery, Thomas C

    2005-12-31T23:59:59.000Z

    The objective of this project was to develop a sonic well performance enhancement technology that focused on near wellbore formation damage. In order to successfully achieve this objective, a three-year project was defined. The entire project was broken into four tasks. The overall objective of all this was to foster a better understanding of the mechanisms involved in sonic energy interactions with fluid flow in porous media and adapt such knowledge for field applications. The fours tasks are: • Laboratory studies • Mathematical modeling • Sonic tool design and development • Field demonstration The project was designed to be completed in three years; however, due to budget cuts, support was only provided for the first year, and hence the full objective of the project could not be accomplished. This report summarizes what was accomplished with the support provided by the US Department of Energy. Experiments performed focused on determining the inception of cavitation, studying thermal dissipation under cavitation conditions, investigating sonic energy interactions with glass beads and oil, and studying the effects of sonication on crude oil properties. Our findings show that the voltage threshold for onset of cavitation is independent of transducer-hydrophone separation distance. In addition, thermal dissipation under cavitation conditions contributed to the mobilization of deposited paraffins and waxes. Our preliminary laboratory experiments suggest that waxes are mobilized when the fluid temperature approaches 40°C. Experiments were conducted that provided insights into the interactions between sonic wave and the fluid contained in the porous media. Most of these studies were carried out in a slim-tube apparatus. A numerical model was developed for simulating the effect of sonication in the nearwellbore region. The numerical model developed was validated using a number of standard testbed problems. However, actual application of the model for scale-up purposes was limited due to funding constraints. The overall plan for this task was to perlorm field trials with the sonication tooL These trials were to be performed in production and/or injection wells located in Pennsylvania, New York, and West Virginia. Four new wells were drilled in preparation for the field demonstration. Baseline production data were collected and reservoir simulator tuned to simulate these oil reservoirs. The sonication tools were designed for these wells. However, actual field testing could not be carried out because of premature termination of the project.

  2. Ultra Thin Quantum Well Materials

    SciTech Connect (OSTI)

    Dr Saeid Ghamaty

    2012-08-16T23:59:59.000Z

    This project has enabled Hi-Z technology Inc. (Hi-Z) to understand how to improve the thermoelectric properties of Si/SiGe Quantum Well Thermoelectric Materials. The research that was completed under this project has enabled Hi-Z Technology, Inc. (Hi-Z) to satisfy the project goal to understand how to improve thermoelectric conversion efficiency and reduce costs by fabricating ultra thin Si/SiGe quantum well (QW) materials and measuring their properties. In addition, Hi-Z gained critical new understanding on how thin film fabrication increases the silicon substrate's electrical conductivity, which is important new knowledge to develop critical material fabrication parameters. QW materials are constructed with alternate layers of an electrical conductor, SiGe and an electrical insulator, Si. Film thicknesses were varied, ranging from 2nm to 10nm where 10 nm was the original film thickness prior to this work. The optimum performance was determined at a Si and SiGe thickness of 4nm for an electrical current and heat flow parallel to the films, which was an important conclusion of this work. Essential new information was obtained on how the Si substrate electrical conductivity increases by up to an order of magnitude upon deposition of QW films. Test measurements and calculations are accurate and include both the quantum well and the substrate. The large increase in substrate electrical conductivity means that a larger portion of the electrical current passes through the substrate. The silicon substrate's increased electrical conductivity is due to inherent impurities and thermal donors which are activated during both molecular beam epitaxy and sputtering deposition of QW materials. Hi-Z's forward looking cost estimations based on future high performance QW modules, in which the best Seebeck coefficient and electrical resistivity are taken from separate samples predict that the electricity cost produced with a QW module could be achieved at <$0.35/W. This price would open many markets for waste heat recovery applications. By installing Hi-Z's materials in applications in which electricity could be produced from waste heat sources could result in significant energy savings as well as emissions reductions. For example, if QW thermoelectric generators could be introduced commercially in 2015, and assuming they could also capture an additional 0.1%/year of the available waste heat from the aluminum, steel, and iron industries, then by 2020, their use would lead to a 2.53 trillion Btu/year reduction in energy consumption. This translates to a $12.9 million/year energy savings, and 383.6 million lb's of CO2 emissions reduction per year. Additionally, Hi-Z would expect that the use of QW TE devices in the automotive, manufacturing, and energy generation industries would reduce the USA's petroleum and fossil fuel dependence, and thus significantly reduce emissions from CO2 and other polluting gasses such as NOx, SOx, and particulate matter (PM), etc.

  3. Defining the normal turbine inflow within a wind park environment

    SciTech Connect (OSTI)

    Kelley, N.D.

    1993-06-01T23:59:59.000Z

    This brief paper discusses factors that must be considered when defining the {open_quotes}normal{close_quotes} (as opposed to {open_quotes}extreme{close_quotes}) loading conditions seen in wind turbines operating within a wind park environment. The author defines the {open_quotes}normal{close_quotes} conditions to include fatigue damage accumulation as a result of: (1) start/stop cycles, (2) emergency shutdowns, and (3) the turbulence environment associated with site and turbine location. He also interprets {open_quotes}extreme{close_quotes} loading conditions to include those events that can challenge the survivability of the turbine.

  4. Defining the normal turbine inflow within a wind park environment

    SciTech Connect (OSTI)

    Kelley, N.D.

    1993-06-01T23:59:59.000Z

    This brief paper discusses factors that must be considered when defining the [open quotes]normal[close quotes] (as opposed to [open quotes]extreme[close quotes]) loading conditions seen in wind turbines operating within a wind park environment. The author defines the [open quotes]normal[close quotes] conditions to include fatigue damage accumulation as a result of: (1) start/stop cycles, (2) emergency shutdowns, and (3) the turbulence environment associated with site and turbine location. He also interprets [open quotes]extreme[close quotes] loading conditions to include those events that can challenge the survivability of the turbine.

  5. A Diffusion Study of the Federally Mandated School Wellness Policy 

    E-Print Network [OSTI]

    Harriger, Dinah Jane

    2012-10-19T23:59:59.000Z

    distinct stages. (Note: See Figure 1.1 and Appendix A) o Phase 1 = Initiation Phase o Stage 1 = Agenda Setting o Stage 2 = Matching o Phase 2 = Implementation Phase o Stage 3 = Re-defining o Stage 4 = Clarifying o Stage 5 = Routinizing 5... Overview To provide a comprehensive, theoretically-driven analysis of the federally mandated School Wellness Policy, the study was conducted in three segments. Chapter II explored the policy initiation process (Phase 1 (Initiation) = agenda setting...

  6. Proton in the well and through the desolvation barrier Armen Y. Mulkidjanian

    E-Print Network [OSTI]

    Steinhoff, Heinz-Jürgen

    Review Proton in the well and through the desolvation barrier Armen Y. Mulkidjanian A.N. Belozersky proton well was suggested by Peter Mitchell to account for the energetic equivalence of the chemical (pH) and electrical () components of the proton-motive force. The proton well was defined as a proton

  7. Introduction Geohazards can be defined as "events caused by geolo-

    E-Print Network [OSTI]

    . Offshore, several of the largest oil companies define reduction of geohazard-related risks in deep water for geohazards in the production and transport of oil and gas, and increased vulnerability to geohazards caused as one of their top research priorities. The consequences of a geoha- zard-triggered accident offshore

  8. Grupos definibles en cuerpos locales y cuerpos pseudo-finitos

    E-Print Network [OSTI]

    Baro, Elías

    investigaci´on dirigido por Margarita Otero Dom´inguez UAM Septiembre de 2006 #12;Introducci´on Este trabajo un conjunto definible G Kn junto con unas operaciones · : G�G G y -1 : G G cuyos grafos son tambi } donde f es un polinomio y n > 0, y es cerrada para operaciones booleanas. Una variedad de Nash real

  9. DEFINING AND EXPERIENCING DANGEROUS CLIMATE CHANGE An Editorial Essay

    E-Print Network [OSTI]

    Hulme, Mike

    DEFINING AND EXPERIENCING DANGEROUS CLIMATE CHANGE An Editorial Essay SURAJE DESSAI1, W. NEIL ADGER. Understanding what constitutes dangerous climate change is of critical importance for future concerted action and somewhat arbitrary definitions of danger based on a variety of assumptions and assessments generally

  10. Pyrolytic carbon electrodes Lithographically Defined Porous Carbon Electrodes**

    E-Print Network [OSTI]

    New Mexico, University of

    Pyrolytic carbon electrodes Lithographically Defined Porous Carbon Electrodes** D. Bruce Burckel Polsky* The special nature of the CÀC bond can lead to various polymorphic forms of carbon such as graphite, glassy-carbon, fullerenes (such as buckyballs), carbon nanotubes, and diamond. Electrodes made

  11. Defining and Measuring Policy Coverage in Testing Access Control Policies

    E-Print Network [OSTI]

    Young, R. Michael

    Defining and Measuring Policy Coverage in Testing Access Control Policies Evan Martin, Tao Xie a study on the policy coverage achieved by manually generated requests. 1 Introduction Access control is one of the most fundamental and widely used security mechanisms. It controls which princi- pals (users

  12. Defining and Measuring Policy Coverage in Testing Access Control Policies

    E-Print Network [OSTI]

    Xie, Tao

    Defining and Measuring Policy Coverage in Testing Access Control Policies Evan Martin, Tao Xie loss on fault detection. We also conduct a study on the policy coverage achieved by manually generated. It controls which principals (users, processes, etc.) have access to which resources in a system. To better

  13. ROBERT MCNAB AND KATHLEEN BAILEY MANUSCRIPT 2: DEFINING CORRUPTION

    E-Print Network [OSTI]

    to be a corrupt action, given the individual saw no explicit private benefit? From Nye's perspective, 1964). The literature commonly defines corruption as, "the abuse of public power for private benefit: "the use of public office for private gain."3 From this perspective, corruption is connected explicitly

  14. Master Thesis Defining Materials in an Automotive Environment to Support

    E-Print Network [OSTI]

    Assarsson, Ulf

    Master Thesis ­ Defining Materials in an Automotive Environment to Support Realistic Virtual will decrease project time and cost. In the automotive industry, virtual evaluation is of special importance to material library in RD&T. · Demonstration on an automotive case in RD&T. Prior knowledge Knowledge

  15. Model for Evolutionary Technology An Automatically Defined Terminal Approach

    E-Print Network [OSTI]

    Fernandez, Thomas

    to satisfy consumer pref- erences on the demand side and lower production costs of products on the supply automatically defined terminal (ADT) to keep ready and stable building blocks growing into com- plex structure. INTRODUCTION Many fields including biology, design, engineering, manage- ment science, and complex adaptive

  16. INVITATIONAL WELL-TESTING SYMPOSIUM PROCEEDINGS

    E-Print Network [OSTI]

    Authors, Various

    2011-01-01T23:59:59.000Z

    Technology and Needs for Drilling and Well Testing. . . . .AND NEEDS FOR DRILLING AND WELL TESTING INSTRUMENTATIONand Needs for Drilling and Well Testing Instrumentation W.

  17. INVITATIONAL WELL-TESTING SYMPOSIUM PROCEEDINGS

    E-Print Network [OSTI]

    Authors, Various

    2011-01-01T23:59:59.000Z

    Education Course on Well Completion and Stimulation, Feb.to provide a reasonable well completion opportunity. Duringinterpretation and well completion strategy. In addition, a

  18. Electrostatically defined Quantum Dots in a Si/SiGe Heterostructure

    E-Print Network [OSTI]

    A. Wild; J. Sailer; J. Nützel; G. Abstreiter; S. Ludwig; D. Bougeard

    2010-07-14T23:59:59.000Z

    We present an electrostatically defined few-electron double quantum dot (QD) realized in a molecular beam epitaxy grown Si/SiGe heterostructure. Transport and charge spectroscopy with an additional QD as well as pulsed-gate measurements are demonstrated. We discuss technological challenges specific for silicon-based heterostructures and the effect of a comparably large effective electron mass on transport properties and tunability of the double QD. Charge noise, which might be intrinsically induced due to strain-engineering is proven not to affect the stable operation of our device as a spin qubit. Our results promise the suitability of electrostatically defined QDs in Si/SiGe heterostructures for quantum information processing.

  19. Electrostatically defined Quantum Dots in a Si/SiGe Heterostructure

    E-Print Network [OSTI]

    Wild, A; Nützel, J; Abstreiter, G; Ludwig, S; Bougeard, D

    2010-01-01T23:59:59.000Z

    We present an electrostatically defined few-electron double quantum dot (QD) realized in a molecular beam epitaxy grown Si/SiGe heterostructure. Transport and charge spectroscopy with an additional QD as well as pulsed-gate measurements are demonstrated. We discuss technological challenges specific for silicon-based heterostructures and the effect of a comparably large effective electron mass on transport properties and tunability of the double QD. Charge noise, which might be intrinsically induced due to strain-engineering is proven not to affect the stable operation of our device as a spin qubit. Our results promise the suitability of electrostatically defined QDs in Si/SiGe heterostructures for quantum information processing.

  20. Defining Human Failure Events for Petroleum Risk Analysis

    SciTech Connect (OSTI)

    Ronald L. Boring; Knut Øien

    2014-06-01T23:59:59.000Z

    In this paper, an identification and description of barriers and human failure events (HFEs) for human reliability analysis (HRA) is performed. The barriers, called target systems, are identified from risk significant accident scenarios represented as defined situations of hazard and accident (DSHAs). This report serves as the foundation for further work to develop petroleum HFEs compatible with the SPAR-H method and intended for reuse in future HRAs.

  1. Electrostatically defined quantum dots in a Si/SiGe heterostructure This article has been downloaded from IOPscience. Please scroll down to see the full text article.

    E-Print Network [OSTI]

    Ludwig-Maximilians-Universität, München

    Electrostatically defined quantum dots in a Si/SiGe heterostructure This article has been of Physics Electrostatically defined quantum dots in a Si/SiGe heterostructure A Wild1 , J Sailer1 , J Nützel epitaxially grown Si/SiGe heterostructure. Transport and charge spectroscopy with an additional QD as well

  2. Stratigraphic correlation of well logs using relational tree

    SciTech Connect (OSTI)

    Fang, J.H.; Tsay, F.; Lai, P.F.

    1986-05-01T23:59:59.000Z

    A heuristic waveform correlation scheme of well logs is based on a relational tree matching. Waveforms (well logs) are represented in a data structure known as a relational tree. A relational tree provides a complete description of the contextural relationships, as defined by peaks and valleys of the waveforms. The correlational scheme consists of a distance-measuring process using all possible peak attributes. First, a distance function is defined for any two nodes in terms of peak attributes. To find the best match for a given node of a given waveform, the authors measure the distance between the given node and each node from a predefined subset of the second waveform. The closest one is considered to be the matched node. The process is repeated for every node in the waveform. This quantitative correlation method has been implemented and tested with well logs from the Black Warrior basin, north Alabama. Results showed that the procedure has the capability of handling the thickening and thinning strata, as well as missing intervals.

  3. Health and Wellness Guide for Students Introduction

    E-Print Network [OSTI]

    dimensions of health and wellness. The 7 dimensions are: Physical Wellness ­ Taking care of your body Wellness ­ Taking care of what's around you 2Health andWellness Guide for Students #12;Physical Wellness · Communicate with your partner if you have questions or concerns · Meet with a Health Care Provider on campus

  4. Resilient Control Systems Practical Metrics Basis for Defining Mission Impact

    SciTech Connect (OSTI)

    Craig G. Rieger

    2014-08-01T23:59:59.000Z

    "Resilience” describes how systems operate at an acceptable level of normalcy despite disturbances or threats. In this paper we first consider the cognitive, cyber-physical interdependencies inherent in critical infrastructure systems and how resilience differs from reliability to mitigate these risks. Terminology and metrics basis are provided to integrate the cognitive, cyber-physical aspects that should be considered when defining solutions for resilience. A practical approach is taken to roll this metrics basis up to system integrity and business case metrics that establish “proper operation” and “impact.” A notional chemical processing plant is the use case for demonstrating how the system integrity metrics can be applied to establish performance, and

  5. Safety culture assessment based on PSA-defined critical components

    SciTech Connect (OSTI)

    Mavko, B.; Kozuh, M.

    1994-12-31T23:59:59.000Z

    With the suggested guide-words approach connected to the critical components, a different viewpoint on nuclear safety attitudes is defined. This enables the identification, judgment, and improvement of the most vulnerable places in the plant. Any potential overlap in the duties and areas where a clear division of responsibilities is needed is thus revealed. Also, the need for communication between different groups becomes evident. It is known that anyone who neglects the communication of component status by assuming everybody knows it can cause a serious problem. Safety culture is reached when such assumptions are absent from day-to-day operations.

  6. Calculation defines uncertainty of unaccounted-for gas

    SciTech Connect (OSTI)

    Norman, R.; Jepson, P.

    1987-04-06T23:59:59.000Z

    A method for defining the uncertainty of the unaccounted-for gas figure and for identifying and isolating causes of significant changes in this figure will lead to a more accurate accounting of volumes in high-pressure natural-gas transmission systems. An error analysis can be employed to ascertain the uncertainty on the unaccounted-for gas figure for such systems along with a simple method for recognizing the magnitude and time of significant changes in this figure. In addition, a better understanding of factors affecting meter accuracy will lead to more precise gas measurements.

  7. OpenEI:Projects/Defining Namespaces | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLuOpenNorthOlympia Green FuelsperCivicVersionNeutral pointDefining

  8. Oil and Gas Wells: Regulatory Provisions (Kansas)

    Broader source: Energy.gov [DOE]

    It shall be unlawful for any person, firm or corporation having possession or control of any natural gas well, oil well or coalbed natural gas well, whether as a contractor, owner, lessee, agent or...

  9. Industry survey for horizontal wells. Final report

    SciTech Connect (OSTI)

    Wilson, D.D.; Kaback, D.S. [CDM Federal Programs Corp., Denver, CO (United States); Denhan, M.E. [Westinghouse Savannah River Co., Aiken, SC (United States); Watkins, D. [CDM Federal Programs Corp., Aiken, SC (United States)

    1993-07-01T23:59:59.000Z

    An international survey of horizontal environmental wells was performed during May and June of 1993. The purpose of the survey was to provide the environmental industry with an inventory of horizontal environmental wells and information pertaining to the extent of the use of horizontal environmental wells, the variety of horizontal environmental well applications, the types of geologic and hydrogeologic conditions within which horizontal environmental wells have been installed, and the companies that perform horizontal environmental well installations. Other information, such as the cost of horizontal environmental well installations and the results of tests performed on the wells, is not complete but is provided as general information with the caveat that the information should not be used to compare drilling companies. The result of the survey is a catalogue of horizontal environmental wells that are categorized by the objective or use of the wells, the vertical depth of the wells, and the drilling company contracted to install the wells.

  10. New multilateral well architecture in heterogeneous reservoirs

    E-Print Network [OSTI]

    Jia, Hongqiao

    2004-09-30T23:59:59.000Z

    . The performance of new multilateral well in heterogeneous reservoirs is studied, and that is compared with vertical well architecture also. In order to study the productivity of new multilateral wells, we use a numerical simulation method to set up heterogeneous...

  11. Functionalized Graphene Nanoroads for Quantum Well Device. |...

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

    Nanoroads for Quantum Well Device. Functionalized Graphene Nanoroads for Quantum Well Device. Abstract: Using density functional theory, a series of calculations of structural and...

  12. Helicopter magnetic survey conducted to locate wells

    SciTech Connect (OSTI)

    Veloski, G.A.; Hammack, R.W.; Stamp, V. (Rocky Mountain Oilfield Testing Center); Hall, R. (Rocky Mountain Oilfield Testing Center); Colina, K. (Rocky Mountain Oilfield Testing Center)

    2008-07-01T23:59:59.000Z

    A helicopter magnetic survey was conducted in August 2007 over 15.6 sq mi at the Naval Petroleum Reserve No. 3’s (NPR-3) Teapot Dome Field near Casper, Wyoming. The survey’s purpose was to accurately locate wells drilled there during more than 90 years of continuous oilfield operation. The survey was conducted at low altitude and with closely spaced flight lines to improve the detection of wells with weak magnetic response and to increase the resolution of closely spaced wells. The survey was in preparation for a planned CO2 flood for EOR, which requires a complete well inventory with accurate locations for all existing wells. The magnetic survey was intended to locate wells missing from the well database and to provide accurate locations for all wells. The ability of the helicopter magnetic survey to accurately locate wells was accomplished by comparing airborne well picks with well locations from an intense ground search of a small test area.

  13. Track 4: Employee Health and Wellness

    Broader source: Energy.gov [DOE]

    ISM Workshop Presentations Knoxville Convention Center, Knoxville, TN August 2009 Track 4: Employee Health and Wellness

  14. A note on QUBO instances defined on Chimera graphs

    E-Print Network [OSTI]

    Sanjeeb Dash

    2013-07-01T23:59:59.000Z

    McGeoch and Wang (2013) recently obtained optimal or near-optimal solutions to some quadratic unconstrained boolean optimization (QUBO) problem instances using a 439 qubit D-Wave Two quantum computing system in much less time than with the IBM ILOG CPLEX mixed-integer quadratic programming (MIQP) solver. The problems studied by McGeoch and Wang are defined on subgraphs -- with up to 439 nodes -- of Chimera graphs. We observe that after a standard reformulation of the QUBO problem as a mixed-integer linear program (MILP), the specific instances used by McGeoch and Wang can be solved to optimality with the CPLEX MILP solver in much less time than the time reported in McGeoch and Wang for the CPLEX MIQP solver. However, the solution time is still more than the time taken by the D-Wave computer in the McGeoch-Wang tests.

  15. Recombination of polynucleotide sequences using random or defined primers

    DOE Patents [OSTI]

    Arnold, Frances H. (Pasadena, CA); Shao, Zhixin (Pasadena, CA); Affholter, Joseph A. (Midland, MI); Zhao, Huimin (Pasadena, CA); Giver, Lorraine J. (Pasadena, CA)

    2001-01-01T23:59:59.000Z

    A method for in vitro mutagenesis and recombination of polynucleotide sequences based on polymerase-catalyzed extension of primer oligonucleotides is disclosed. The method involves priming template polynucleotide(s) with random-sequences or defined-sequence primers to generate a pool of short DNA fragments with a low level of point mutations. The DNA fragments are subjected to denaturization followed by annealing and further enzyme-catalyzed DNA polymerization. This procedure is repeated a sufficient number of times to produce full-length genes which comprise mutants of the original template polynucleotides. These genes can be further amplified by the polymerase chain reaction and cloned into a vector for expression of the encoded proteins.

  16. Recombination of polynucleotide sequences using random or defined primers

    DOE Patents [OSTI]

    Arnold, Frances H. (Pasadena, CA); Shao, Zhixin (Pasadena, CA); Affholter, Joseph A. (Midland, MI); Zhao, Huimin H (San Diego, CA); Giver, Lorraine J. (Sunnyvale, CA)

    2000-01-01T23:59:59.000Z

    A method for in vitro mutagenesis and recombination of polynucleotide sequences based on polymerase-catalyzed extension of primer oligonucleotides is disclosed. The method involves priming template polynucleotide(s) with random-sequences or defined-sequence primers to generate a pool of short DNA fragments with a low level of point mutations. The DNA fragments are subjected to denaturization followed by annealing and further enzyme-catalyzed DNA polymerization. This procedure is repeated a sufficient number of times to produce full-length genes which comprise mutants of the original template polynucleotides. These genes can be further amplified by the polymerase chain reaction and cloned into a vector for expression of the encoded proteins.

  17. Can an "impulse response" really be defined for a photoreceiver?

    E-Print Network [OSTI]

    Fraile-Pelaez, F Javier

    2015-01-01T23:59:59.000Z

    In this paper we examine the validity of the concept of impulse response employed to characterize the time response and the signal-to-noise ratio of p-i-n and similar photodetecting devices. We analyze critically the way in which the formalism of analog linear systems has been extrapolated, by employing results from macroscopic electromagnetic theory such as the Shockley--Ramo theorem or any equivalent approach, to the extreme case of a single-photon detection. We argue that the concept of "response to an optical impulse" is ill-defined in the customary terms it is envisioned in the literature, this is, as an output current pulse having a certain predictable, calculated temporal shape, in response to the detection of an optical "Dirac delta" impulse, conceived in turn as the absorption of a single photon.

  18. Apparatus and method for sealing perforated well casing

    DOE Patents [OSTI]

    Blount, C.G.; Benham, R.A.; Brock, J.L.; Emerson, J.A.; Ferguson, K.R.; Scheve, D.F.; Schmidt, J.H.; Schuler, K.W.; Stanton, P.L.

    1997-03-25T23:59:59.000Z

    Perforations and other openings in well casings, liners and other conduits may be substantially blocked or sealed to prevent fluid flow between the casing or liner interior and an earth formation by placing a radially expansible sleeve adjacent the perforations or openings and urging the sleeve into forcible engagement with the casing or inner wall using an explosive charge. An apparatus including a radially contracted sleeve formed by a coiled plate member or a tubular member having flutes defined by external and internal folds, may be deployed into a well casing or liner through a production or injection tubing string and on the end of a flexible cable or coilable tubing. An explosive charge disposed on the apparatus and within the sleeve may be detonated to urge the sleeve into forcible engagement with the casing inner wall. 17 figs.

  19. Vapor port and groundwater sampling well

    DOE Patents [OSTI]

    Hubbell, J.M.; Wylie, A.H.

    1996-01-09T23:59:59.000Z

    A method and apparatus have been developed for combining groundwater monitoring wells with unsaturated-zone vapor sampling ports. The apparatus allows concurrent monitoring of both the unsaturated and the saturated zone from the same well at contaminated areas. The innovative well design allows for concurrent sampling of groundwater and volatile organic compounds (VOCs) in the vadose (unsaturated) zone from a single well, saving considerable time and money. The sample tubes are banded to the outer well casing during installation of the well casing. 10 figs.

  20. Vapor port and groundwater sampling well

    DOE Patents [OSTI]

    Hubbell, Joel M. (Idaho Falls, ID); Wylie, Allan H. (Idaho Falls, ID)

    1996-01-01T23:59:59.000Z

    A method and apparatus has been developed for combining groundwater monitoring wells with unsaturated-zone vapor sampling ports. The apparatus allows concurrent monitoring of both the unsaturated and the saturated zone from the same well at contaminated areas. The innovative well design allows for concurrent sampling of groundwater and volatile organic compounds (VOCs) in the vadose (unsaturated) zone from a single well, saving considerable time and money. The sample tubes are banded to the outer well casing during installation of the well casing.

  1. Defining and Enforcing Referential Security Jed Liu Andrew C. Myers

    E-Print Network [OSTI]

    Myers, Andrew C.

    integrity can itself lead to security vulnerabilities that are not currently well understood. This paper. Referential integrity, which guarantees that named resources can be accessed when referenced, is an important identifies three kinds of referential security vulnerabilities related to the ref- erential integrity

  2. Digital Deposition of Ultrathin Pd Films on Well-Defined Pt(111) Electrodes via Surface-Limited Redox Replacement Reaction: An Electron Spectroscopy-Electrochemistry Study

    E-Print Network [OSTI]

    Hossain, Mohammad

    2010-12-04T23:59:59.000Z

    to Kyle for his assistance in conducting the experiments. I am thankful to Raj Karr, Miguel Cruz-Quiñons, Laura Granda Marulanda, James Cantu, Stephen Fordham, and Joshua Fonzy who aided in this project in many ways. I would like to thank the support...

  3. Electrodeposition of ultrathin Pd, Co and Bi films on well-defined noble-metal electrodes: studies by ultrahigh vacuum-electrochemistry (UHV-EC)

    E-Print Network [OSTI]

    Baricuatro, Jack Hess L

    2006-10-30T23:59:59.000Z

    admetal on a noble-metal surface; and (iii) Co on polycrystalline Pd and Pd(111), a reactive metal on a noble-metal surface. The interfacial electrochemistry of these prototypical systems was characterized using a combination of electrochemical methods...

  4. Electrodeposition of ultrathin Pd, Co and Bi films on well-defined noble-metal electrodes: studies by ultrahigh vacuum-electrochemistry (UHV-EC) 

    E-Print Network [OSTI]

    Baricuatro, Jack Hess L

    2006-10-30T23:59:59.000Z

    Three illustrative cases involving the electrodeposition of ultrathin metal films of varying reactivities onto noble-metal substrates were investigated: (i) Pd on Pt(111), a noble admetal on a noble-metal surface; (ii) Bi ...

  5. RFI Well Integrity 06 JUL 1400

    Broader source: Energy.gov [DOE]

    This PowerPoint report entitled "Well Integrity During Shut - In Operations: DOE/DOI Analyses" describes risks and suggests risk management recommendations associated with shutting in the well.

  6. INVITATIONAL WELL-TESTING SYMPOSIUM PROCEEDINGS

    E-Print Network [OSTI]

    Authors, Various

    2011-01-01T23:59:59.000Z

    Discharge Using Ground- Water Storage," Trans. , AGU (1935),of a well using ground-water storage: ~n. Geophys. Unionof a Well Using Ground-Water Storage," Trans. , AGU (1935),

  7. Production Trends of Shale Gas Wells

    E-Print Network [OSTI]

    Khan, Waqar A.

    2010-01-14T23:59:59.000Z

    To obtain better well performance and improved production from shale gas reservoirs, it is important to understand the behavior of shale gas wells and to identify different flow regions in them over a period of time. It is also important...

  8. Horizontal well applications in complex carbonate reservoirs

    SciTech Connect (OSTI)

    Rahman, M.; Al-Awami, H.

    1995-10-01T23:59:59.000Z

    Over the past four years, Saudi Aramco has drilled over eighty horizontal wells, onshore and offshore. It has successfully applied this technology to develop new reservoirs as well as enhance recovery from its mature fields. This paper presents the reservoir engineering aspects of `horizontal` and `high angle` wells drilled in a major offshore field in Saudi Arabia. It shows how horizontal wells have (a) increased the recovery of bypassed oil, (b) improved well productivity in tight reservoirs, (c) increased production from thin oil zones underlain by water, and (d) improved peripheral injection. The paper discusses the actual performance of the horizontal wells and compares them with offset conventional wells. It presents the results of logging and testing of these wells, and highlights actual field data on (a) relationship between productivity gain and horizontal length, (b) pressure loss along the horizontal wellbore, and (c) effect of heterogeneity on coning an inflow performance.

  9. Disinfecting Water Wells by Shock Chlorination

    E-Print Network [OSTI]

    Dozier, Monty; McFarland, Mark L.

    2005-09-30T23:59:59.000Z

    If your well has been flooded, it must be shock chlorinated before it can be used as a source of drinking water. This publication explains how to disinfect a well using either dry chlorine or liquid household bleach....

  10. Well performance graph simplifies field calculations

    SciTech Connect (OSTI)

    De Ghetto, G.

    1987-05-01T23:59:59.000Z

    Graphic Methods are widely employed in order to understand overall well behavior using only surface parameters. The authors propose a new graphic method, used successfully by Agip for oil and gas wells in Italy, Libya, Nigeria and Tunisia. The well performance graph helps solve many production problems, including estimation of: inflow performance relationship; causes of rate decline throughout well life; and production rate and bottomhole flowing pressure for various pressures upstream of the surface choke, and vice-versa. This method differs from others by using flow behavior through the choke for both critical and subcritical conditions. Equations describing flow through the formation, string and surface choke are also used. Results are quite reliable when these theoretical equations are calibrated with field data, either from the well concerned or from nearby wells producing the same fluid. This article describes the technique as it applies to oil wells. The methodology for gas wells is similar.

  11. Economic evaluation of smart well technology

    E-Print Network [OSTI]

    Al Omair, Abdullatif A.

    2007-09-17T23:59:59.000Z

    comprehensive review of this technology has been discussed. The possible reservoir environments in which smart well technology could be used and also, the possible benefits that could be realized by utilizing smart well technology has been discussed...

  12. Defining nuclear security in the 21st century

    SciTech Connect (OSTI)

    Doyle, James E [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    A conference devoted to Reducing the Risks from Radioactive and Nuclear Materials presupposes that such risks exist. Few would disagree, but what are they? While debate on the nature and severity of risks associated with nuclear energy will always remain, it is easy to define a set of risks that are almost universally acknowledged. These include: (1) Nuclear warfare between states; (2) Continued proliferation of nuclear weapons and weapons-grade nuclear materials to states and non-state actors; (3) Terrorists or non-state actor acquisition or use nuclear weapons or nuclear materials; (4) Terrorists or non-state actors attack on a nuclear facility; and (5) Loss or diversion of nuclear weapons or materials by a state to unauthorized uses. These are listed in no particular order of likelihood or potential consequence. They are also very broadly stated, each one could be broken down into a more detailed set of discrete risks or threats. The fact that there is a strong consensus on the existence of these risks is evidence that we remain in an era of nuclear insecurity. This becomes even clearer when we note that most major trends influencing the probability of these risks continue to run in a negative direction.

  13. Capping of Water Wells for Future Use 

    E-Print Network [OSTI]

    Lesikar, Bruce J.; Mechell, Justin

    2007-09-04T23:59:59.000Z

    Water wells that are not being used, but that might be needed in the future, can be sealed with a cap that covers the top of the well casing pipe to prevent unauthorized access and contamination of the well. This publication explains how to cap a...

  14. STIMULATION TECHNOLOGIES FOR DEEP WELL COMPLETIONS

    SciTech Connect (OSTI)

    Stephen Wolhart

    2003-06-01T23:59:59.000Z

    The Department of Energy (DOE) is sponsoring a Deep Trek Program targeted at improving the economics of drilling and completing deep gas wells. Under the DOE program, Pinnacle Technologies is conducting a project to evaluate the stimulation of deep wells. The objective of the project is to assess U.S. deep well drilling & stimulation activity, review rock mechanics & fracture growth in deep, high pressure/temperature wells and evaluate stimulation technology in several key deep plays. Phase 1 was recently completed and consisted of assessing deep gas well drilling activity (1995-2007) and an industry survey on deep gas well stimulation practices by region. Of the 29,000 oil, gas and dry holes drilled in 2002, about 300 were drilled in the deep well; 25% were dry, 50% were high temperature/high pressure completions and 25% were simply deep completions. South Texas has about 30% of these wells, Oklahoma 20%, Gulf of Mexico Shelf 15% and the Gulf Coast about 15%. The Rockies represent only 2% of deep drilling. Of the 60 operators who drill deep and HTHP wells, the top 20 drill almost 80% of the wells. Six operators drill half the U.S. deep wells. Deep drilling peaked at 425 wells in 1998 and fell to 250 in 1999. Drilling is expected to rise through 2004 after which drilling should cycle down as overall drilling declines.

  15. Multilevel learning-based segmentation of ill-defined and spiculated masses in mammograms

    SciTech Connect (OSTI)

    Tao, Yimo; Lo, Shih-Chung B.; Freedman, Matthew T.; Makariou, Erini; Xuan, Jianhua [Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Arlington, Virginia 22203 (United States) and Department of Radiology, ISIS Center, Georgetown University Medical Center, Washington, DC 20007 (United States); Department of Radiology, ISIS Center, Georgetown University Medical Center, Washington, DC 20007 (United States); Department of Oncology, Georgetown University Medical Center, Washington, DC 20007 (United States); Department of Radiology, Georgetown University Medical Center, Washington, DC 20007 (United States); Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Arlington, Virginia 22203 (United States)

    2010-11-15T23:59:59.000Z

    Purpose: A learning-based approach integrating the use of pixel-level statistical modeling and spiculation detection is presented for the segmentation of mammographic masses with ill-defined margins and spiculations. Methods: The algorithm involves a multiphase pixel-level classification, using a comprehensive group of features computed from regional intensity, shape, and textures, to generate a mass-conditional probability map (PM). Then, the mass candidate, along with the background clutters consisting of breast fibroglandular and other nonmass tissues, is extracted from the PM by integrating the prior knowledge of shape and location of masses. A multiscale steerable ridge detection algorithm is employed to detect spiculations. Finally, all the object-level findings, including mass candidate, detected spiculations, and clutters, along with the PM, are integrated by graph cuts to generate the final segmentation mask. Results: The method was tested on 54 masses (51 malignant and 3 benign), all with ill-defined margins and irregular shape or spiculations. The ground truth delineations were provided by five experienced radiologists. Area overlapping ratio of 0.689 ({+-}0.160) and 0.540 ({+-}0.164) were obtained for segmenting entire mass and margin portion only, respectively. Williams index of area and contour based measurements indicated that the segmentation results of the algorithm agreed well with the radiologists' delineation. Conclusions: The proposed approach could closely delineate the mass body. Most importantly, it is capable of including mass margin and its spicule extensions which are considered as key features for breast lesion analyses.

  16. Potential hydrologic characterization wells in Amargosa Valley

    SciTech Connect (OSTI)

    Lyles, B.; Mihevc, T.

    1994-09-01T23:59:59.000Z

    More than 500 domestic, agricultural, and monitoring wells were identified in the Amargosa Valley. From this list, 80 wells were identified as potential hydrologic characterization wells, in support of the US Department of Energy (DOE) Underground Test Area/Remedial Investigation and Feasibility Study (UGTA/RIFS). Previous hydrogeologic studies have shown that groundwater flow in the basin is complex and that aquifers may have little lateral continuity. Wells located more than 10 km or so from the Nevada Test Site (NTS) boundary may yield data that are difficult to correlate to sources from the NTS. Also, monitoring well locations should be chosen within the guidelines of a hydrologic conceptual model and monitoring plan. Since these do not exist at this time, recompletion recommendations will be restricted to wells relatively close (approximately 20 km) to the NTS boundary. Recompletion recommendations were made for two abandoned agricultural irrigation wells near the town of Amargosa Valley (previously Lathrop Wells), for two abandoned wildcat oil wells about 10 km southwest of Amargosa Valley, and for Test Well 5 (TW-5), about 10 km east of Amargosa Valley.

  17. Well purge and sample apparatus and method

    DOE Patents [OSTI]

    Schalla, R.; Smith, R.M.; Hall, S.H.; Smart, J.E.; Gustafson, G.S.

    1995-10-24T23:59:59.000Z

    The present invention specifically permits purging and/or sampling of a well but only removing, at most, about 25% of the fluid volume compared to conventional methods and, at a minimum, removing none of the fluid volume from the well. The invention is an isolation assembly with a packer, pump and exhaust, that is inserted into the well. The isolation assembly is designed so that only a volume of fluid between the outside diameter of the isolation assembly and the inside diameter of the well over a fluid column height from the bottom of the well to the top of the active portion (lower annulus) is removed. The packer is positioned above the active portion thereby sealing the well and preventing any mixing or contamination of inlet fluid with fluid above the packer. Ports in the wall of the isolation assembly permit purging and sampling of the lower annulus along the height of the active portion. 8 figs.

  18. Well purge and sample apparatus and method

    DOE Patents [OSTI]

    Schalla, Ronald (Kennewick, WA); Smith, Ronald M. (Richland, WA); Hall, Stephen H. (Kennewick, WA); Smart, John E. (Richland, WA); Gustafson, Gregg S. (Redmond, WA)

    1995-01-01T23:59:59.000Z

    The present invention specifically permits purging and/or sampling of a well but only removing, at most, about 25% of the fluid volume compared to conventional methods and, at a minimum, removing none of the fluid volume from the well. The invention is an isolation assembly with a packer, pump and exhaust, that is inserted into the well. The isolation assembly is designed so that only a volume of fluid between the outside diameter of the isolation assembly and the inside diameter of the well over a fluid column height from the bottom of the well to the top of the active portion (lower annulus) is removed. The packer is positioned above the active portion thereby sealing the well and preventing any mixing or contamination of inlet fluid with fluid above the packer. Ports in the wall of the isolation assembly permit purging and sampling of the lower annulus along the height of the active portion.

  19. ADVANCED TECHNOLOGIES FOR STRIPPER GAS WELL ENHANCEMENT

    SciTech Connect (OSTI)

    Charles M. Boyer II; Ronald J. MacDonald P.G.

    2002-04-01T23:59:59.000Z

    As part of Task 1 in Advanced Technologies for Stripper Gas Well Enhancement, Schlumberger--Holditch Reservoir Technologies (H-RT) joined with two Appalachian Basin producers, Great Lakes Energy Partners, LLC, and Belden and Blake Corporation to develop methodologies for identification and enhancement of stripper wells with economic upside potential. These industry partners previously provided us with data for more than 700 wells in northwestern Pennsylvania. Phase 1 goals of this project are to develop and validate methodologies that can quickly and cost-effectively identify wells with enhancement potential. We have enhanced and streamlined our software, and we are beta-testing the final stages of our new Microsoft{trademark} Access/Excel based software. We have processed all well information and identified potential candidate wells that can be used in Phase 2 to validate the new methodologies. In addition, the final technical report is almost finished and a draft version is being reviewed by Gary Covatch.

  20. Stimulation Technologies for Deep Well Completions

    SciTech Connect (OSTI)

    None

    2003-09-30T23:59:59.000Z

    The Department of Energy (DOE) is sponsoring the Deep Trek Program targeted at improving the economics of drilling and completing deep gas wells. Under the DOE program, Pinnacle Technologies is conducting a study to evaluate the stimulation of deep wells. The objective of the project is to assess U.S. deep well drilling & stimulation activity, review rock mechanics & fracture growth in deep, high pressure/temperature wells and evaluate stimulation technology in several key deep plays. An assessment of historical deep gas well drilling activity and forecast of future trends was completed during the first six months of the project; this segment of the project was covered in Technical Project Report No. 1. The second progress report covers the next six months of the project during which efforts were primarily split between summarizing rock mechanics and fracture growth in deep reservoirs and contacting operators about case studies of deep gas well stimulation.

  1. Characterization Well R-22 Geochemistry Report

    SciTech Connect (OSTI)

    Patrick Longmire

    2002-09-01T23:59:59.000Z

    This report provides analytical results for groundwater collected during four characterization-sampling rounds conducted at well R-22 from March 2001 through March 2002. Characterization well R-22 was sampled from March 6 through 13, 2001; June 19 through 26, 2001; November 30 through December 10, 2001; and February 27 through March 7, 2002. The goal of the characterization efforts was to assess the hydrochemistry and to determine whether or not contaminants are present in the regional aquifer in the vicinity of the well. A geochemical evaluation of the analytical results for the well is also presented in this report.

  2. Geothermal wells: a forecast of drilling activity

    SciTech Connect (OSTI)

    Brown, G.L.; Mansure, A.J.; Miewald, J.N.

    1981-07-01T23:59:59.000Z

    Numbers and problems for geothermal wells expected to be drilled in the United States between 1981 and 2000 AD are forecasted. The 3800 wells forecasted for major electric power projects (totaling 6 GWe of capacity) are categorized by type (production, etc.), and by location (The Geysers, etc.). 6000 wells are forecasted for direct heat projects (totaling 0.02 Quads per year). Equations are developed for forecasting the number of wells, and data is presented. Drilling and completion problems in The Geysers, The Imperial Valley, Roosevelt Hot Springs, the Valles Caldera, northern Nevada, Klamath Falls, Reno, Alaska, and Pagosa Springs are discussed. Likely areas for near term direct heat projects are identified.

  3. Wells, Borings, and Underground Uses (Minnesota)

    Broader source: Energy.gov [DOE]

    This section regulates wells, borings, and underground storage with regards to protecting groundwater resources. The Commissioner of the Department of Health has jurisdiction, and can grant permits...

  4. Stimulation Technologies for Deep Well Completions

    SciTech Connect (OSTI)

    Stephen Wolhart

    2005-06-30T23:59:59.000Z

    The Department of Energy (DOE) is sponsoring the Deep Trek Program targeted at improving the economics of drilling and completing deep gas wells. Under the DOE program, Pinnacle Technologies conducted a study to evaluate the stimulation of deep wells. The objective of the project was to review U.S. deep well drilling and stimulation activity, review rock mechanics and fracture growth in deep, high-pressure/temperature wells and evaluate stimulation technology in several key deep plays. This report documents results from this project.

  5. April 27, 2010 Well Logging I

    E-Print Network [OSTI]

    Ito, Garrett

    wells and may be drilled to tap into water or oil/natural gas. Core samples are usually not taken4/26/2010 1 GG450 April 27, 2010 Well Logging I Today's material comes from p. 501-541 in the text book. Please read and understand all of this material! Drilling ­ Exploration and Scientific Holes

  6. Geothermal Reservoir Well Stimulation Program: technology transfer

    SciTech Connect (OSTI)

    Not Available

    1980-05-01T23:59:59.000Z

    Each of the following types of well stimulation techniques are summarized and explained: hydraulic fracturing; thermal; mechanical, jetting, and drainhole drilling; explosive and implosive; and injection methods. Current stimulation techniques, stimulation techniques for geothermal wells, areas of needed investigation, and engineering calculations for various techniques. (MHR)

  7. Optimization of well length in waterflooding a five-spot pattern of horizontal wells

    E-Print Network [OSTI]

    Jimenez, Zulay J.

    1992-01-01T23:59:59.000Z

    for the horizontal wells and provide a good return on investment. Horizontal Wells in Waterflood Pr t A worldwide interest exists today in drilling horizontal wells to increase productivity, Horizontal wells can be used in any phase of reservoir recovery... efficiency7. Several investigatorss-ic have studied waterflooding using horizontal wells. droman et al, s reported a field application using horizontal wells in the Prudhoe Bay Unit where the main reservoir drive mechanism is gas cap expansion...

  8. Completion Report for Well ER-EC-8

    SciTech Connect (OSTI)

    Bechtel Nevada

    2004-10-01T23:59:59.000Z

    Well ER-EC-8 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. This well was drilled in the summer of 1999 as part of the U.S. Department of Energy's hydrogeologic investigation program in the Western Pahute Mesa - Oasis Valley region just west of the Nevada Test Site. A 44.5-centimeter surface hole was drilled and cased off to a depth of 129.8 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 609.6 meters. One completion string with three isolated slotted intervals was installed in the well. A preliminary composite, static water level was measured at the depth of 98.4 meters, 24 days after installation of the completion string. Detailed lithologic descriptions with stratigraphic assignments are included in the report. These are based on evaluation of composite drill cuttings collected every 3 meters, and 20 sidewall samples taken at various depths below 157.9 meters, supplemented by geophysical log data and results of detailed chemical and mineralogical studies of rock samples. Drilling began in Tertiary-age tuff of the Thirsty Canyon Group, and penetrated tuffs of the Beatty Wash Formation, tuff of Buttonhook Wash, and the upper portion of the Ammonia Tanks Tuff. The geologic interpretation of data from this well helps define the location of the western margin of the Timber Mountain caldera complex in the southwestern Nevada volcanic field. Geologic and hydrologic data from the well will aid in development of models to predict groundwater flow and contaminant migration within and near the Nevada Test Site.

  9. Enhanced Geothermal Systems (EGS) well construction technology evaluation report.

    SciTech Connect (OSTI)

    Capuano, Louis, Jr. (Thermasource Inc.); Huh, Michael; Swanson, Robert (Thermasource Inc.); Raymond, David Wayne; Finger, John Travis; Mansure, Arthur James; Polsky, Yarom; Knudsen, Steven Dell

    2008-12-01T23:59:59.000Z

    Electricity production from geothermal resources is currently based on the exploitation of hydrothermal reservoirs. Hydrothermal reservoirs possess three ingredients critical to present day commercial extraction of subsurface heat: high temperature, in-situ fluid and high permeability. Relative to the total subsurface heat resource available, hydrothermal resources are geographically and quantitatively limited. A 2006 DOE sponsored study led by MIT entitled 'The Future of Geothermal Energy' estimates the thermal resource underlying the United States at depths between 3 km and 10 km to be on the order of 14 million EJ. For comparison purposes, total U.S. energy consumption in 2005 was 100 EJ. The overwhelming majority of this resource is present in geological formations which lack either in-situ fluid, permeability or both. Economical extraction of the heat in non-hydrothermal situations is termed Enhanced or Engineered Geothermal Systems (EGS). The technologies and processes required for EGS are currently in a developmental stage. Accessing the vast thermal resource between 3 km and 10 km in particular requires a significant extension of current hydrothermal practice, where wells rarely reach 3 km in depth. This report provides an assessment of well construction technology for EGS with two primary objectives: (1) Determining the ability of existing technologies to develop EGS wells. (2) Identifying critical well construction research lines and development technologies that are likely to enhance prospects for EGS viability and improve overall economics. Towards these ends, a methodology is followed in which a case study is developed to systematically and quantitatively evaluate EGS well construction technology needs. A baseline EGS well specification is first formulated. The steps, tasks and tools involved in the construction of this prospective baseline EGS well are then explicitly defined by a geothermal drilling contractor in terms of sequence, time and cost. A task and cost based analysis of the exercise is subsequently conducted to develop a deeper understanding of the key technical and economic drivers of the well construction process. Finally, future research & development recommendations are provided and ranked based on their economic and technical significance.

  10. Computers and Chemical Engineering 30 (2006) 14161423 Comparison of some well-known PID tuning formulas

    E-Print Network [OSTI]

    Marquez, Horacio J.

    Computers and Chemical Engineering 30 (2006) 1416­1423 Comparison of some well-known PID tuning on disturbance rejection and system robustness are proposed to assess the performance of PID controllers. A simple robustness measure is defined and the integral gains of the PID controllers are shown to be a good

  11. Dispersion measurement as a method of quantifying geologic characterization and defining reservoir heterogeneity. Final report

    SciTech Connect (OSTI)

    Menzie, D.E.

    1995-05-01T23:59:59.000Z

    The main objective of this research project is to investigate dispersion as a method of quantifying geological characterization and defining reservoir heterogeneity in order to enhance crude oil recovery. The dispersion of flow of a reservoir rock (dispersion coefficient and dispersivity) was identified as one of the physical properties of a reservoir rock by measuring the mixing of two miscible fluids, one displacing the other in a porous medium. A rock was 100% saturated with a resident fluid and displaced by a miscible fluid of equal viscosity and equal density. Some specific experiments were performed with unequal densities. Produced fluid was analyzed by refractometer, nuclear reaction, electrical conductivity and X-ray scan. Several physical and flow characteristics were measured on the sand rock sample in order to establish correlations with the measured dispersion property. Absolute permeability, effective porosity, relative permeability, capillary pressure, the heterogeneity factor and electrical conductivity were used to better understand the flow system. Linear, transverse, 2-D and 3-D dispersions were measured and used to characterize the rock heterogeneity of the flow system. A new system of measuring dispersion was developed using a gas displacing gas system in a porous medium. An attempt was also made to determine the dispersion property of an actual reservoir from present day well log data on a producing well. 275 refs., 102 figs., 17 tabs.

  12. A Network Approach to Define Modularity of Components in Complex Products

    E-Print Network [OSTI]

    Sosa, Manuel E.

    Modularity has been defined at the product and system levels. However, little effort has gone into defining and quantifying modularity at the component level. We consider complex products as a network of components that ...

  13. Gas condensate damage in hydraulically fractured wells

    E-Print Network [OSTI]

    Adeyeye, Adedeji Ayoola

    2004-09-30T23:59:59.000Z

    Company. The well was producing a gas condensate reservoir and questions were raised about how much drop in flowing bottomhole pressure below dewpoint would be appropriate. Condensate damage in the hydraulic fracture was expected to be of significant...

  14. Groundwater well with reactive filter pack

    DOE Patents [OSTI]

    Gilmore, Tyler J. (Pasco, WA); Holdren, Jr., George R. (Kennewick, WA); Kaplan, Daniel I. (Richland, WA)

    1998-01-01T23:59:59.000Z

    A method and apparatus for the remediation of contaminated soil and ground water wherein a reactive pack material is added to the annular fill material utilized in standard well construction techniques.

  15. RMOTC - Field Information - Wells and Production

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

    sale of RMOTC equipment and materials click here. Partners may test in RMOTC's large inventory of cased, uncased, vertical, high-angle, and horizontal wells. Cased and open-hole...

  16. MARGINAL EXPENSE OIL WELL WIRELESS SURVEILLANCE MEOWS

    SciTech Connect (OSTI)

    Mason M. Medizade; John R. Ridgely; Donald G. Nelson

    2004-11-01T23:59:59.000Z

    A marginal expense oil well wireless surveillance system to monitor system performance and production from rod-pumped wells in real time from wells operated by Vaquero Energy in the Edison Field, Main Area of Kern County in California has been successfully designed and field tested. The surveillance system includes a proprietary flow sensor, a programmable transmitting unit, a base receiver and receiving antenna, and a base station computer equipped with software to interpret the data. First, the system design is presented. Second, field data obtained from three wells is shown. Results of the study show that an effective, cost competitive, real-time wireless surveillance system can be introduced to oil fields across the United States and the world.

  17. Reservoir studies of new multilateral well architecture

    E-Print Network [OSTI]

    Sarfare, Manoj Dnyandeo

    2004-09-30T23:59:59.000Z

    to optimize slot usage, commercially develop lower-quality reserves in the Brent sequence and when applied with complementary technologies of underbalanced drilling and intelligent well completions help optimize field development The economic benefits...

  18. INVITATIONAL WELL-TESTING SYMPOSIUM PROCEEDINGS

    E-Print Network [OSTI]

    Authors, Various

    2011-01-01T23:59:59.000Z

    wei I is being dri lied underbalanced, whether H2S is to beis occurring, the well is underbalanced and the threat of ain, the wei I may become underbalanced and the threat of a

  19. Geological well log analysis. Third ed

    SciTech Connect (OSTI)

    Pirson, S.J.

    1983-01-01T23:59:59.000Z

    Until recently, well logs have mainly been used for correlation, structural mapping, and quantitive evaluation of hydrocarbon bearing formations. This third edition of Geologic Well Log Analysis, however, describes how well logs can be used for geological studies and mineral exploration. This is done by analyzing well logs for numerous parameters and indices of significant mineral accumulation, primarily in sediments. Contents are: SP and Eh curves as redoxomorphic logs; sedimentalogical studies by log curve shapes; exploration for stratigraphic traps; continuous dipmeter as a structural tool; continuous dipmeter as a sedimentation tool; Paleo-facies logging and mapping; hydrogeology 1--hydrodynamics of compaction; hydrogeology 2--geostatic equilibrium; and hydrogeology 3--hydrodynamics of infiltration. Appendixes cover: Computer program for calculating the dip magnitude, azimuth, and the degree and orientation of the resistivity anisotrophy; a lithology computer program for calculating the curvature of a structure; and basic log analysis package for HP-41CV programmable calculator.

  20. Modeling well performance in compartmentalized gas reservoirs

    E-Print Network [OSTI]

    Yusuf, Nurudeen

    2008-10-10T23:59:59.000Z

    Predicting the performance of wells in compartmentalized reservoirs can be quite challenging to most conventional reservoir engineering tools. The purpose of this research is to develop a Compartmentalized Gas Depletion Model that applies not only...

  1. Modeling techniques for simulating well behavior

    E-Print Network [OSTI]

    Rattu, Bungen Christina

    2002-01-01T23:59:59.000Z

    This thesis is a catalog of modeling techniques useful in simulating well behavior in certain types of reservoirs that are often encountered in petroleum reservoirs. Emphasis has been placed on techniques that can be used with any conventional...

  2. Modeling well performance in compartmentalized gas reservoirs

    E-Print Network [OSTI]

    Yusuf, Nurudeen

    2009-05-15T23:59:59.000Z

    Predicting the performance of wells in compartmentalized reservoirs can be quite challenging to most conventional reservoir engineering tools. The purpose of this research is to develop a Compartmentalized Gas Depletion Model that applies not only...

  3. Completion of Oil Wells May 4, 2003

    E-Print Network [OSTI]

    Rudge, John

    Completion of Oil Wells John Rudge May 4, 2003 1 Introduction After the initial drilling of an oil for given , z; i.e. ignore radial variation. Under this assumption these equations can be easily integrated

  4. Groundwater well with reactive filter pack

    DOE Patents [OSTI]

    Gilmore, T.J.; Holdren, G.R. Jr.; Kaplan, D.I.

    1998-09-08T23:59:59.000Z

    A method and apparatus are disclosed for the remediation of contaminated soil and ground water wherein a reactive pack material is added to the annular fill material utilized in standard well construction techniques. 3 figs.

  5. Automatic well log correlation using neural networks

    E-Print Network [OSTI]

    Habiballah, Walid Abdulrahim

    1991-01-01T23:59:59.000Z

    AUTOMATIC WELL LOG CORRELATION USING NEURAL NETWORKS A Thesis by WALID ABDULHAHIM HABIBALLAH Submitted to the Office of Graduate Studies of Texas AaM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 1991 Major Subject; Petroleum Engineering AUTOMATIC WELL LOG CORRELATION USING NEURAL NETWORKS A Thesis by WALID ABDULRAHIM HABIBALLAH Approved as to style and content by: R. A. St tzman (Chair of Committee) S. W. Poston (Member) R. R...

  6. PrimeEnergy/DOE/GRI slant well

    SciTech Connect (OSTI)

    Drimal, C.E.; Muncey, G.; Carden, R.

    1991-12-01T23:59:59.000Z

    This report presents final results of the Sterling Boggs 1240 slant well. Objectives of the project were (1) to test the potential for improved recovery efficiency in a fractured Devonian Shale reservoir from a directionally drilled well, (2) to perform detailed tests of reservoir properties and completion methods, and (3) to provide technology to industry which may ultimately improve the economics of drilling in the Devonian Shale and thereby stimulate development of its resources.

  7. Characterization Well R-7 Geochemistry Report

    SciTech Connect (OSTI)

    P.Longmire; F.Goff

    2002-12-01T23:59:59.000Z

    This report provides analytical results for four groundwater-sampling rounds conducted at characterization well R-7. The goal of the characterization efforts was to assess the hydrochemistry and to determine if contaminants from Technical Area (TA)-2 and TA-21 of the Los Alamos National Laboratory (LANL or the Laboratory) are present in the regional aquifer in the vicinity of the well. Figure 1.0-1 shows the well's location in the narrow upper part of Los Alamos Canyon, between the inactive Omega West reactor and the mouth of DP Canyon. Well R-7 is in an excellent location to characterize the hydrology and groundwater chemistry in both perched groundwater and the regional aquifer near sites of known Laboratory effluent release, including radionuclides and inorganic chemicals (Stone et al. 2002, 72717). The Risk Reduction and Environmental Stewardship-Remediation (RRES-R) Program (formerly the Environmental Restoration [ER] Project) installed well R-7 as part of groundwater investigations to satisfy requirements of the ''Hydrogeologic Workplan'' (LANL 1998, 59599) and to support the Laboratory's ''Groundwater Protection Management Program Plan'' (LANL 1996, 70215). Well R-7 was designed primarily to provide geochemical or water quality and hydrogeologic data for the regional aquifer within the Puye Formation. This report also presents a geochemical evaluation of the analytical results for well R-7 and provides hydrogeochemical interpretations using analytical results for groundwater samples collected at the well. Discussion of other hydrogeochemical data collected within the east-central portion of the Laboratory, however, is deferred until they can be evaluated in the context of sitewide information collected from other RRES and Hydrogeologic Workplan characterization wells (R-8A, R-9, and R-9i). Once all deep groundwater investigations in the east-central portion of the Laboratory are completed, geochemical and hydrogeologic conceptual models for the Los Alamos Canyon watershed may be included in a groundwater risk analysis. These models will include an evaluation of potential contaminant transport pathways. Well R-7 was completed on March 9, 2001, with three screens (363.2 to 379.2 ft, 730.4 to 746.4 ft, and 895.5 to 937.4 ft). Screen No.2 was dry during characterization sampling. Four rounds of groundwater characterization samples, collected from a perched zone and the regional aquifer from depths of 378.0 ft (screen No.1) and 915.0 ft (screen No.3), were chemically characterized for radionuclides, metals and trace elements, major ions, high-explosive (HE) compounds, total organic carbon, dissolved organic carbon, organic compounds, and stable isotopes (H, N, and O). Although well R-7 is primarily a characterization well, its design and construction also meet the requirements of a Resource Conservation and Recovery Act (RCRA)-compliant monitoring well as described in the US Environmental Protection Agency (EPA) document ''RCRA Groundwater Monitoring: Draft Technical Guidance,'' November 1992, EPA 530-R-93- 001. Incorporation of this well into a Laboratory-wide groundwater-monitoring program will be considered, and more specifically evaluated (e.g., sampling frequency, analytes, etc.), when the results of the well R-7 characterization activities are comprehensively evaluated in conjunction with other groundwater investigations in the ''Hydrogeologic Workplan'' (LANL 1998, 59599).

  8. 767revision:2003-05-19modified:2003-05-25 Definability of Initial Segments

    E-Print Network [OSTI]

    Shelah, Saharon

    Tsuboi Abstract In any nonstandard model of Peano arithmetic, the standard part is not first order definable. But we show that in some model the standard part is definable as the unique solution of a formula consider implicit definability of the standard part {0, 1, ...} in nonstandard models of Peano arithmetic

  9. Productivity and Injectivity of Horizontal Wells

    SciTech Connect (OSTI)

    Aziz, Khalid; Hewett, Thomas A.; Arbabi, Sepehr; Smith, Marilyn

    1999-11-16T23:59:59.000Z

    The generation of suitable simulation grids for heterogeneous media and specific discretization issues that arise. Streamlines and equipotentials are used to define our base grids. Since streamlines are concentrated in high velocity regions they provide a natural means of clustering fine grid cells in crucial flow regions. For complex configurations and particularly for strongly heterogeneous regions the resulting grid cells can become very distorted due to extremely high curvatures. Two types of cell centered formulation are examined together with a cell vertex-point distributed scheme. Important distinctions are found for highly distorted cells. The new grids are tested for accuracy in terms of critical breakthrough parameters and it is shown that a much higher level of grid resolution is required by conventional simulators in order to achieve results that are comparable with those computed on relatively coarse streamline-potential grids.

  10. Defining And Characterizing Sample Representativeness For DWPF Melter Feed Samples

    SciTech Connect (OSTI)

    Shine, E. P.; Poirier, M. R.

    2013-10-29T23:59:59.000Z

    Representative sampling is important throughout the Defense Waste Processing Facility (DWPF) process, and the demonstrated success of the DWPF process to achieve glass product quality over the past two decades is a direct result of the quality of information obtained from the process. The objective of this report was to present sampling methods that the Savannah River Site (SRS) used to qualify waste being dispositioned at the DWPF. The goal was to emphasize the methodology, not a list of outcomes from those studies. This methodology includes proven methods for taking representative samples, the use of controlled analytical methods, and data interpretation and reporting that considers the uncertainty of all error sources. Numerous sampling studies were conducted during the development of the DWPF process and still continue to be performed in order to evaluate options for process improvement. Study designs were based on use of statistical tools applicable to the determination of uncertainties associated with the data needs. Successful designs are apt to be repeated, so this report chose only to include prototypic case studies that typify the characteristics of frequently used designs. Case studies have been presented for studying in-tank homogeneity, evaluating the suitability of sampler systems, determining factors that affect mixing and sampling, comparing the final waste glass product chemical composition and durability to that of the glass pour stream sample and other samples from process vessels, and assessing the uniformity of the chemical composition in the waste glass product. Many of these studies efficiently addressed more than one of these areas of concern associated with demonstrating sample representativeness and provide examples of statistical tools in use for DWPF. The time when many of these designs were implemented was in an age when the sampling ideas of Pierre Gy were not as widespread as they are today. Nonetheless, the engineers and statisticians used carefully thought out designs that systematically and economically provided plans for data collection from the DWPF process. Key shared features of the sampling designs used at DWPF and the Gy sampling methodology were the specification of a standard for sample representativeness, an investigation that produced data from the process to study the sampling function, and a decision framework used to assess whether the specification was met based on the data. Without going into detail with regard to the seven errors identified by Pierre Gy, as excellent summaries are readily available such as Pitard [1989] and Smith [2001], SRS engineers understood, for example, that samplers can be biased (Gy?s extraction error), and developed plans to mitigate those biases. Experiments that compared installed samplers with more representative samples obtained directly from the tank may not have resulted in systematically partitioning sampling errors into the now well-known error categories of Gy, but did provide overall information on the suitability of sampling systems. Most of the designs in this report are related to the DWPF vessels, not the large SRS Tank Farm tanks. Samples from the DWPF Slurry Mix Evaporator (SME), which contains the feed to the DWPF melter, are characterized using standardized analytical methods with known uncertainty. The analytical error is combined with the established error from sampling and processing in DWPF to determine the melter feed composition. This composition is used with the known uncertainty of the models in the Product Composition Control System (PCCS) to ensure that the wasteform that is produced is comfortably within the acceptable processing and product performance region. Having the advantage of many years of processing that meets the waste glass product acceptance criteria, the DWPF process has provided a considerable amount of data about itself in addition to the data from many special studies. Demonstrating representative sampling directly from the large Tank Farm tanks is a difficult, if not unsolvable enterprise due to li

  11. ADVANCED TECHNOLOGIES FOR STRIPPER GAS WELL ENHANCEMENT

    SciTech Connect (OSTI)

    Charles M. Boyer II; Ronald J. MacDonald P.G.

    2002-01-01T23:59:59.000Z

    As part of Task 1 in Advanced Technologies for Stripper Gas Well Enhancement, Schlumberger-Holditch Reservoir Technologies (H-RT) has joined with two Appalachian Basin producers, Great Lakes Energy Partners, LLC, and Belden & Blake Corporation to develop methodologies for identification and enhancement of stripper wells with economic upside potential. These industry partners have provided us with data for more than 700 wells in northwestern Pennsylvania. Phase 1 goals of this project are to develop and validate methodologies that can quickly and cost-effectively identify wells with enhancement potential. We have continued to enhance and streamline our software, and we are testing the final stages of our new Microsoft{trademark} Access/Excel based software. We are continuing to process the information and are identifying potential candidate wells that can be used in Phase 2 to validate the new methodologies. In addition, preparation of the final technical report is underway. During this quarter, we have presented our project and discussed the software to numerous Petroleum Technology Transfer Council (PTTC) workshops located in various regions of the United States.

  12. Pressure buildup characteristics in Austin Chalk wells

    E-Print Network [OSTI]

    Claycomb, Eddy

    1982-01-01T23:59:59.000Z

    20 40 60 60 Mr lee IOOKrlemelere EEKAR 6 UA SALMI' WILSON LAVACA hrAVERICK ZAVA' A FRIG ATAECOSA KARNES DE WITT 0 0 IMMIT LA SALLE ~CO o& @g'v Figure I ? Austin Chalk Trend in Texas Early in the development of Clayton W, Williams, Jr..., Henry J. , Jr. : "Well- Test Analysis for Vertically Fractured Wells, " J. Pet. Tech. (Aug. 1972) 1014-1020; Trans. , AINE, 253. VITA Name: Eddy Claycomb Birth Date: March 18, 1956 Birthplace: Tyler, Texas Parents: Mr. and Mrs. Tom Claycomb, Jr...

  13. Foolproof completions for high rate production wells

    E-Print Network [OSTI]

    Tosic, Slavko

    2008-10-10T23:59:59.000Z

    wells, particularly those with subsea wellheads, and the alternative has been to subject the completion to increasingly high drawdown, accepting a high skin effect. A far better solution is to use a HPF completion. Of course the execution of a successful...

  14. Foolproof completions for high rate production wells

    E-Print Network [OSTI]

    Tosic, Slavko

    2009-05-15T23:59:59.000Z

    wells, particularly those with subsea wellheads, and the alternative has been to subject the completion to increasingly high drawdown, accepting a high skin effect. A far better solution is to use a HPF completion. Of course the execution of a successful...

  15. FOR THE ACTIVE Health and Wellness

    E-Print Network [OSTI]

    deYoung, Brad

    FOR THE ACTIVE Health and Wellness n EARLY BIRD SWIM Monday, Wednesday & Friday Sept. 16-Dec. 6, 7, Seniors: $58 n SWIMMER'S SPECIAL (Participate in 36 swims of your choice of Early Bird or Evening Swim Education fasttrac for 55+ ASTRONOMY ­ OUR SOLAR SYSTEM AND BEYOND This basic introductory course

  16. FOR THE ACTIVE Health and Wellness

    E-Print Network [OSTI]

    deYoung, Brad

    FOR THE ACTIVE Health and Wellness n EARLY BIRD SWIM Monday, Wednesday & Friday Sept. 16-Dec. 6, 7, Seniors: $58 n SWIMMER'S SPECIAL (Participate in 36 swims of your choice of Early Bird or Evening Swim Education fasttrac for 55+ ASTRONOMY ­ Our Solar System and Beyond This basic introductory course

  17. Visualizing Motion in Potential Wells* Pratibha Jolly

    E-Print Network [OSTI]

    Zollman, Dean

    , directly and plot the potential energy diagrams using a magnetic field sensor. The ease of measurement of potential #12;2 barriers and wells. The previous developers used a photo-interrupt and timing device for the sake of economy a single sensor was employed. Then, the experiment had to be repeated a large number

  18. Promoting Balance, Wellness & Fitness Creating healthier lives.

    E-Print Network [OSTI]

    Washington at Seattle, University of

    in student recruitment and retention. Engagement ­ We provide opportunities for students and members of their leisure time. Participation in such activities also assists students in performing well in a demanding interpersonal conflicts, learn healthy life-style habits, provide first aid and emergency response services

  19. T2WELL/ECO2N

    Energy Science and Technology Software Center (OSTI)

    002966IBMPC00 T2Well/ECO2N Version 1.0: Multiphase and Non-Isothermal Model for Coupled Wellbore-Reservoir Flow of Carbon Dioxide and Variable Salinity Water  http:..esd.lbl.gov/tough/licensing.html 

  20. Marginal Expense Oil Well Wireless Surveillance (MEOWWS)

    SciTech Connect (OSTI)

    Nelson, Donald G.

    2002-03-11T23:59:59.000Z

    The objective of this study was to identify and field test a new, low cost, wireless oil well surveillance system. A variety of suppliers and technologies were considered. One supplier and system was chosen that was low cost, new to the oil field, and successfully field tested.

  1. C-26A well sets new standard for ER horizontal wells

    SciTech Connect (OSTI)

    Andresen, S.; Hovda, S. [Norsk Hydro Production a.s, Bergen (Norway); Olsen, T.L. [Baker Hughes INTEQ, Bergen (Norway)

    1995-11-01T23:59:59.000Z

    Well 30/6-C-26A in the Norwegian North Sea has a horizontal reach of 25,758 ft, which was briefly a new world record in extended reach drilling. The last 6,888 ft was drilled horizontally in the reservoir 20--26 ft vertically above the oil-water contact. The Oseberg field was discovered in 1979. To develop this giant (16.8 x 3.1 mile, 27 x 5 km) field, two platforms were placed 9.3 miles apart. To drain the oil between the platforms, two subsea wells were drilled and completed. The first horizontal well in the Oseberg field was drilled in 1992. Since then 17 horizontal wells have been successfully drilled and completed. The general trend during this period is that both the length of the horizontal reservoir section and the total depth for the wells have increased. New equipment and technology, as well as general field experience, played an important role when deciding to drill well C-26A. The paper describes well C-26A objectives, well bore stability, well path considerations, the casing program, hydraulics and hole cleaning and well completion.

  2. Well constructions with inhibited microbial growth and methods of antimicrobial treatment in wells

    DOE Patents [OSTI]

    Lee, Brady D.; Dooley, Kirk J.

    2004-11-02T23:59:59.000Z

    The invention includes methods of inhibiting microbial growth in a well. A packing material containing a mixture of a first material and an antimicrobial agent is provided to at least partially fill a well bore. One or more access tubes are provided in an annular space around a casing within the well bore. The access tubes have a first terminal opening located at or above a ground surface and have a length that extends from the first terminal opening at least part of the depth of the well bore. The access tubes have a second terminal opening located within the well bore. An antimicrobial material is supplied into the well bore through the first terminal opening of the access tubes. The invention also includes well constructs.

  3. GAS INJECTION/WELL STIMULATION PROJECT

    SciTech Connect (OSTI)

    John K. Godwin

    2005-12-01T23:59:59.000Z

    Driver Production proposes to conduct a gas repressurization/well stimulation project on a six well, 80-acre portion of the Dutcher Sand of the East Edna Field, Okmulgee County, Oklahoma. The site has been location of previous successful flue gas injection demonstration but due to changing economic and sales conditions, finds new opportunities to use associated natural gas that is currently being vented to the atmosphere to repressurize the reservoir to produce additional oil. The established infrastructure and known geological conditions should allow quick startup and much lower operating costs than flue gas. Lessons learned from the previous project, the lessons learned form cyclical oil prices and from other operators in the area will be applied. Technology transfer of the lessons learned from both projects could be applied by other small independent operators.

  4. Consortium for Petroleum & Natural Gas Stripper Wells

    SciTech Connect (OSTI)

    Joel L. Morrison; Sharon L. Elder

    2007-03-31T23:59:59.000Z

    The Pennsylvania State University, under contract to the U.S. Department of Energy (DOE), National Energy Technology Laboratory (NETL), established a national industry-driven Stripper Well Consortium (SWC) that is focused on improving the production performance of domestic petroleum and/or natural gas stripper wells. The SWC represents a partnership between U.S. petroleum and natural gas producers, trade associations, state funding agencies, academia, and the NETL. This document serves as the twelfth quarterly technical progress report for the SWC. Key activities for this reporting period included: (1) Drafting and releasing the 2007 Request for Proposals; (2) Securing a meeting facility, scheduling and drafting plans for the 2007 Spring Proposal Meeting; (3) Conducting elections and announcing representatives for the four 2007-2008 Executive Council seats; (4) 2005 Final Project Reports; (5) Personal Digital Assistant Workshops scheduled; and (6) Communications and outreach.

  5. Efficiency limits of quantum well solar cells

    E-Print Network [OSTI]

    Connolly, J P; Barnham, K W J; Bushnell, D B; Tibbits, T N D; Roberts, J S

    2010-01-01T23:59:59.000Z

    The quantum well solar cell (QWSC) has been proposed as a flexible means to ensuring current matching for tandem cells. This paper explores the further advantage afforded by the indication that QWSCs operate in the radiative limit because radiative contribution to the dark current is seen to dominate in experimental data at biases corresponding to operation under concentration. The dark currents of QWSCs are analysed in terms of a light and dark current model. The model calculates the spectral response (QE) from field bearing regions and charge neutral layers and from the quantum wells by calculating the confined densities of states and absorption coefficient, and solving transport equations analytically. The total dark current is expressed as the sum of depletion layer and charge neutral radiative and non radiative currents consistent with parameter values extracted from QE fits to data. The depletion layer dark current is a sum of Shockley-Read-Hall non radiative, and radiative contributions. The charge neu...

  6. Pressure buildup characteristics in Austin Chalk wells 

    E-Print Network [OSTI]

    Claycomb, Eddy

    1982-01-01T23:59:59.000Z

    Bottom Hole Pressure Data; Case IV: Most Prevalent Case . 30 VIII Data Used for Analysis of Buildup Test; Case IV 32 LIST OF FIGURES Fi gure Page I Austin Chalk Trend in Texas Horner Plot; Case I: Radial Flow, i. e. , No Hydraulic Fracture 12 III... Pressure 8uildup Test in Vertically Fractured Wells. . . . . . . . . . . . 37 INTRODUCTION The Austin Chalk is a limestone that was deposited during the Gulfian Series of the Cretaceous System. The Austin Chalk overlies the Eagle Ford Group...

  7. Oscillation dynamics of multi-well condensates

    E-Print Network [OSTI]

    S. Mossmann; C. Jung

    2006-12-05T23:59:59.000Z

    We propose a new approach to the macroscopic dynamics of three-well Bose-Einstein condensates, giving particular emphasis to self-trapping and Josephson oscillations. Although these effects have been studied quite thoroughly in the mean-field approximation, a full quantum description is desirable, since it avoids pathologies due to the nonlinear character of the mean-field equations. Using superpositions of quantum eigenstates, we construct various oscillation and trapping scenarios.

  8. Recompletion Report for Well UE-10j

    SciTech Connect (OSTI)

    M. J. Townsend

    2000-05-01T23:59:59.000Z

    Existing Well UE-10j was deepened and recompleted for the U.S. Department of Energy, Nevada Operations Office in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. The well was originally drilled to a total depth of 725.4 meters in 1965 for use as a hydrologic test hole in the northern portion of Yucca Flat in Area 8 of the Nevada Test Site. The well is located up-gradient of the Yucca Flat underground test area and penetrates deep into the Paleozoic rocks that form the lower carbonate aquifer of the NTS and surrounding areas. The original 24.4-centimeter-diameter borehole was drilled to a depth of 725.4 meters and left uncompleted. Water-level measurements were made periodically by the U.S. Geological Survey, but access to the water table was lost between 1979 and 1981 due to hole sloughing. In 1993, the hole was opened to 44.5 centimeters and cased off to a depth of 670.0 meters. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 796.4 meters. The depth to water in the open borehole was measured at 658.7 meters on March 18, 1993.

  9. Remote down-hole well telemetry

    DOE Patents [OSTI]

    Briles, Scott D. (Los Alamos, NM); Neagley, Daniel L. (Albuquerque, NM); Coates, Don M. (Santa Fe, NM); Freund, Samuel M. (Los Alamos, NM)

    2004-07-20T23:59:59.000Z

    The present invention includes an apparatus and method for telemetry communication with oil-well monitoring and recording instruments located in the vicinity of the bottom of gas or oil recovery pipes. Such instruments are currently monitored using electrical cabling that is inserted into the pipes; cabling has a short life in this environment, and requires periodic replacement with the concomitant, costly shutdown of the well. Modulated reflectance, a wireless communication method that does not require signal transmission power from the telemetry package will provide a long-lived and reliable way to monitor down-hole conditions. Normal wireless technology is not practical since batteries and capacitors have to frequently be replaced or recharged, again with the well being removed from service. RF energy generated above ground can also be received, converted and stored down-hole without the use of wires, for actuating down-hole valves, as one example. Although modulated reflectance reduces or eliminates the loss of energy at the sensor package because energy is not consumed, during the transmission process, additional stored extra energy down-hole is needed.

  10. Site-Wide Integrated Water Monitoring - Defining and Implementing Sampling Objectives to Support Site Closure - 13060

    SciTech Connect (OSTI)

    Wilborn, Bill; Knapp, Kathryn [U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (United States)] [U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (United States); Farnham, Irene; Marutzky, Sam [Navarro-Intera (United States)] [Navarro-Intera (United States)

    2013-07-01T23:59:59.000Z

    The Underground Test Area (UGTA) activity is responsible for assessing and evaluating the effects of the underground nuclear weapons tests on groundwater at the Nevada National Security Site (NNSS), formerly the Nevada Test Site (NTS), and implementing a corrective action closure strategy. The UGTA strategy is based on a combination of characterization, modeling studies, monitoring, and institutional controls (i.e., monitored natural attenuation). The closure strategy verifies through appropriate monitoring activities that contaminants of concern do not exceed the SDWA at the regulatory boundary and that adequate institutional controls are established and administered to ensure protection of the public. Other programs conducted at the NNSS supporting the environmental mission include the Routine Radiological Environmental Monitoring Program (RREMP), Waste Management, and the Infrastructure Program. Given the current programmatic and operational demands for various water-monitoring activities at the same locations, and the ever-increasing resource challenges, cooperative and collaborative approaches to conducting the work are necessary. For this reason, an integrated sampling plan is being developed by the UGTA activity to define sampling and analysis objectives, reduce duplication, eliminate unnecessary activities, and minimize costs. The sampling plan will ensure the right data sets are developed to support closure and efficient transition to long-term monitoring. The plan will include an integrated reporting mechanism for communicating results and integrating process improvements within the UGTA activity as well as between other U.S. Department of Energy (DOE) Programs. (authors)

  11. Site-Wide Integrated Water Monitoring -- Defining and Implementing Sampling Objectives to Support Site Closure

    SciTech Connect (OSTI)

    Wilborn, Bill [NNSA/NFO, Nevada Site Office (United States); Farnham, Irene [Navarro-Interra LLC, Las Vegas (United States); Marutzky, Sam [Navarro-Interra LLC, Las Vegas (United States); Knapp, Kathryn [NNSA/NFO, Nevada Site Office (United States)

    2013-02-24T23:59:59.000Z

    The Underground Test Area (UGTA) activity is responsible for assessing and evaluating the effects of the underground nuclear weapons tests on groundwater at the Nevada National Security Site (NNSS), formerly the Nevada Test Site (NTS), and implementing a corrective action closure strategy. The UGTA strategy is based on a combination of characterization, modeling studies, monitoring, and institutional controls (i.e., monitored natural attenuation). The closure strategy verifies through appropriate monitoring activities that contaminants of concern do not exceed the SDWA at the regulatory boundary and that adequate institutional controls are established and administered to ensure protection of the public. Other programs conducted at the NNSS supporting the environmental mission include the Routine Radiological Environmental Monitoring Program (RREMP), Waste Management, and the Infrastructure Program. Given the current programmatic and operational demands for various water-monitoring activities at the same locations, and the ever-increasing resource challenges, cooperative and collaborative approaches to conducting the work are necessary. For this reason, an integrated sampling plan is being developed by the UGTA activity to define sampling and analysis objectives, reduce duplication, eliminate unnecessary activities, and minimize costs. The sampling plan will ensure the right data sets are developed to support closure and efficient transition to long-term monitoring. The plan will include an integrated reporting mechanism for communicating results and integrating process improvements within the UGTA activity as well as between other U.S. Department of Energy (DOE) Programs.

  12. abandoned wells: Topics by E-print Network

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

    Websites Summary: Do Well, Be Well with Diabetes Do Well, Be Well with Diabetes Lesson Topics WhatisDiabetes? Nutrition-FirstSteptoDiabetesManagement...

  13. abandoned wells metodologia: Topics by E-print Network

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

    Websites Summary: Do Well, Be Well with Diabetes Do Well, Be Well with Diabetes Lesson Topics WhatisDiabetes? Nutrition-FirstSteptoDiabetesManagement...

  14. abandoning wells working: Topics by E-print Network

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

    Websites Summary: Do Well, Be Well with Diabetes Do Well, Be Well with Diabetes Lesson Topics WhatisDiabetes? Nutrition-FirstSteptoDiabetesManagement...

  15. DEFINABILITY OF GROUPS IN 0-STABLE METRIC STRUCTURES ITAI BEN YAACOV

    E-Print Network [OSTI]

    Ben Yaacov, Itaï

    define a continuous predicate P(x) = st (x1)0 , namely the standard part of x truncated at 0 from below

  16. IMPROVED NATURAL GAS STORAGE WELL REMEDIATION

    SciTech Connect (OSTI)

    James C. Furness; Donald O. Johnson; Michael L. Wilkey; Lynn Furness; Keith Vanderlee; P. David Paulsen

    2001-12-01T23:59:59.000Z

    This report summarizes the research conducted during Budget Period One on the project ''Improved Natural Gas Storage Well Remediation''. The project team consisted of Furness-Newburge, Inc., the technology developer; TechSavants, Inc., the technology validator; and Nicor Technologies, Inc., the technology user. The overall objectives for the project were: (1) To develop, fabricate and test prototype laboratory devices using sonication and underwater plasma to remove scale from natural gas storage well piping and perforations; (2) To modify the laboratory devices into units capable of being used downhole; (3) To test the capability of the downhole units to remove scale in an observation well at a natural gas storage field; (4) To modify (if necessary) and field harden the units and then test the units in two pressurized injection/withdrawal gas storage wells; and (5) To prepare the project's final report. This report covers activities addressing objectives 1-3. Prototype laboratory units were developed, fabricated, and tested. Laboratory testing of the sonication technology indicated that low-frequency sonication was more effective than high-frequency (ultrasonication) at removing scale and rust from pipe sections and tubing. Use of a finned horn instead of a smooth horn improves energy dispersal and increases the efficiency of removal. The chemical data confirmed that rust and scale were removed from the pipe. The sonication technology showed significant potential and technical maturity to warrant a field test. The underwater plasma technology showed a potential for more effective scale and rust removal than the sonication technology. Chemical data from these tests also confirmed the removal of rust and scale from pipe sections and tubing. Focusing of the underwater plasma's energy field through the design and fabrication of a parabolic shield will increase the technology's efficiency. Power delivered to the underwater plasma unit by a sparkplug repeatedly was interrupted by sparkplug failure. The lifecycle for the plugs was less than 10 hours. An electrode feed system for delivering continuous power needs to be designed and developed. As a result, further work on the underwater plasma technology was terminated. It needs development of a new sparking system and a redesign of the pulsed power supply system to enable the unit to operate within a well diameter of less than three inches. Both of these needs were beyond the scope of the project. Meanwhile, the laboratory sonication unit was waterproofed and hardened, enabling the unit to be used as a field prototype, operating at temperatures to 350 F and depths of 15,000 feet. The field prototype was extensively tested at a field service company's test facility before taking it to the field site. The field test was run in August 2001 in a Nicor Gas storage field observation well at Pontiac, Illinois. Segmented bond logs, gamma ray neutron logs, water level measurements and water chemistry samples were obtained before and after the downhole demonstration. Fifteen tests were completed in the field. Results from the water chemistry analysis showed an increase in the range of calcium from 1755-1984 mg/l before testing to 3400-4028 mg/l after testing. For magnesium, the range increased from 285-296 mg/l to 461-480 mg/l. The change in pH from a range of 3.11-3.25 to 8.23-8.45 indicated a buffering of the acidic well water, probably due to the increased calcium available for buffering. The segmented bond logs showed no damage to the cement bond in the well and the gamma ray neutron log showed no increase in the amount of hydrocarbons present in the formation where the testing took place. Thus, the gas storage bubble in the aquifer was not compromised. A review of all the field test data collected documents the fact that the application of low-frequency sonication technology definitely removes scale from well pipe. Phase One of this project took sonication technology from the concept stage through a successful ''proof-of-concept'' downhole application in a natural gas storage field

  17. Decline curve analysis for horizontal wells

    E-Print Network [OSTI]

    Shih, Min-Yu

    1994-01-01T23:59:59.000Z

    support kept me from losing sight of my goals. Thanks to Sam Hou, Joseph Wang, Robert Liau, James Wang, and Shou for their company and in particular to Li Fan and Mrs. Shou-Lee Chang for their caring and delicious meals when I forgot my dinner. Thanks... Pressure (L/2xe= 0. 2) Composite Dimensionless Flow Rate Integral and Flow Rate Integral Derivative Functions Type Curve for an Infinite-Conductivity Horizontal Well Located in the Center of a Square Drainage Area, Producing at Constant Bottomhole...

  18. Negative decline curves of coalbed degasification wells

    SciTech Connect (OSTI)

    Harrison, G.C.; Gordon, R.B.

    1984-05-01T23:59:59.000Z

    Production data from coalbed degasification wells characteristically exhibit a negative decline curve. The dynamics of this methane production are complex and interrelated. As production begins, water and free gas are often first recovered. Continued production lowers pressure and increases permeability to gas, allowing adsorbed gas to flow. This pressure drop within the formation causes sublimation whereby gas, which is absorbed within the coal, forms on the walls of the micropores. Finally, the desorption through production disturbs the chemical and physical equilibrium of the coal, thus enabling the coal to resume generation of methane.

  19. In situ bioremediation using horizontal wells

    SciTech Connect (OSTI)

    NONE

    1995-04-01T23:59:59.000Z

    In Situ Bioremediation (ISB), which is the term used in this report for Gaseous Nutrient Injection for In Situ Bioremediation, remediates soils and ground water contaminated with volatile organic compounds (VOCs) both above and below the water table. ISB involves injection of air and nutrients (sparging and biostimulation) into the ground water and vacuum extraction to remove .VOCs from the vadose zone concomitant with biodegradation of VOCs. The innovation is in the combination of 3 emerging technologies, air stripping, horizontal wells, and bioremediation via gaseous nutrient injection with a baseline technology, soil vapor extraction, to produce a more efficient in situ remediation system.

  20. Maazama Well Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:LandownersLuther, Oklahoma:EnergyECO AugerMaan Development CompanyMaazama Well

  1. Geothermal/Well Field | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, search OpenEI Reference LibraryAdd toWell TestingGeothermal/Power PlantUse)

  2. California Water Well Standards | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:EzfeedflagBiomassSustainableCSL Gas Recovery Biomass16Association JumpCaliforniaWater Well

  3. Wells, Minnesota: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwideWTED Jump to:Ohio: EnergyWebGenWelcomeMaine:Wells, Minnesota:

  4. Wells, Vermont: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwideWTED Jump to:Ohio: EnergyWebGenWelcomeMaine:Wells,

  5. Category:Well Deepening | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here.Telluric Survey as explorationpage? For detailed information on Well

  6. Willow Well Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 Wind Project Jump to: navigation,Williamsport,Willow Well

  7. Salt Wells Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f < RAPID‎ |Rippey Jump to:WY) JumpLandSRTHelena:Sakti3RiverSalt Wells

  8. Spontaneous Potential Well Log | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt LtdShawangunk,Southeast ColoradoOhio: Energy ResourcesSpire(book section)Well

  9. Step-out Well | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f < RAPID‎SolarCityInformation Glass ButtesStep-out Well Jump to:

  10. Wells Rural Electric Co | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlin BaxinUmweltVillageGraph HomeWaranaWaterEnergyWeeklyWelivitWells Rural

  11. Geothermal/Well Field | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating AGeothermal/Exploration < Geothermal Jump to: navigation,Geothermal/Well

  12. Well Completion Report for Well ER-20-11, Corrective Action Units 101 and 102: Central and Western Pahute Mesa

    SciTech Connect (OSTI)

    NSTec Environmental Management

    2013-02-27T23:59:59.000Z

    Well ER-20-11 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office in support of the Nevada Environmental Management Operations Underground Test Area (UGTA) Activity at the Nevada National Security Site (formerly Nevada Test Site), Nye County, Nevada. The well was drilled in September 2012 as part of the Central and Western Pahute Mesa Corrective Action Unit Phase II drilling program. Well ER-20-11 was constructed to further investigate the nature and extent of radionuclidecontaminated groundwater encountered in two nearby UGTA wells, to help define hydraulic and transport parameters for the contaminated Benham aquifer, and to provide data for the UGTA hydrostratigraphic framework model. The 44.5-centimeter (cm) surface hole was drilled to a depth of 520.0 meters (m) and cased with 34.0-cm casing to 511.5 m. The hole diameter was then decreased to 31.1 cm, and the borehole was drilled to a total depth of 915.6 m. The hole was completed to allow access for hydrologic testing and sampling in the target aquifer, which is a lava-flow aquifer known as the Benham aquifer. The completion casing string, set to the depth of 904.3 m, consists of a string of 6?-inch (in.) stainless-steel casing hanging from a string of 7?-in. carbon-steel casing. The stainless-steel casing has one slotted interval at 796.3 to 903.6 m. One piezometer string was installed, which consists of 2?-in. stainless-steel tubing that hangs from 2?-in. carbon-steel tubing via a crossover sub. This string was landed at 903.8 m and is slotted in the interval 795.3 to 903.1 m. Data collected during and shortly after hole construction include composite drill cuttings samples collected every 3.0 m, various geophysical logs, fluid samples (for groundwater chemistry analysis and tritium measurements), and water-level measurements. The well penetrated 915.6 m of Tertiary volcanic rock, including one saturated lava flow aquifer. Measurements on samples taken from the undeveloped well indicated elevated tritium levels within the Benham aquifer. The maximum tritium level measured with field equipment was 146,131 picocuries per liter from a sample obtained at the depth of 912.0 m. The fluid level was measured in the piezometer string at a depth of 504.5 m on September 26, 2012. All Fluid Management Plan (FMP) requirements for Well ER-20-11 were met. Analysis of monitoring samples and FMP confirmatory samples indicated that fluids generated during drilling at Well ER-20-11 met the FMP criteria for discharge to an unlined sump or designated infiltration area. Well development, hydrologic testing, and sampling will be conducted at a later date.

  13. Well injection valve with retractable choke

    SciTech Connect (OSTI)

    Pringle, R.E.

    1986-07-22T23:59:59.000Z

    An injection valve is described for use in a well conduit consisting of: a housing having a bore, a valve closure member in the bore moving between open and closed positions, a flow tube telescopically movable in the housing for controlling the movement of the valve closure member, means for biasing the flow tube in a direction for allowing the valve closure member to move to the closed position, an expandable and contractible fluid restriction connected to the flow tube and extending into the bore for moving the flow tube to the open position in response to injection fluid, but allowing the passage of well tools through the valve, the restriction contractible in response to fluid flow, the restriction includes, segments movable into and out of the bore, and biasing means yieldably urging the segments into the bore, a no-go shoulder on the flow tube, and releasable lockout means between the flow tube and the housing for locking the flow tube and valve in the open position.

  14. Productivity and Injectivity of Horizontal Wells

    SciTech Connect (OSTI)

    Khalid Aziz; Sepehr Arababi; Thomas A. Hewett

    1997-04-29T23:59:59.000Z

    A general wellbore flow model is presented to incorporate not only frictional, accelerational and gravitational pressure drops, but also the pressure drop caused by inflow. Influence of inflow or outflow on the wellbore pressure drop is analyzed. New friction factor correlations accounting for both inflow and outflow are also developed. The greatest source of uncertainty is reservoir description and how it is used in simulators. Integration of data through geostatistical techniques leads to multiple descriptions that all honor available data. The reality is never known. The only way to reduce this uncertainty is to use more data from geological studies, formation evaluation, high resolution seismic, well tests and production history to constrain stochastic images. Even with a perfect knowledge about reservoir geology, current models cannot do routine simulations at a fine enough scale. Furthermore, we normally don't know what scale is fine enough. Upscaling introduces errors and masks some of the physical phenomenon that we are trying to model. The scale at which upscaling is robust is not known and it is probably smaller in most cases than the scale actually used for predicting performance. Uncertainties in the well index can cause errors in predictions that are of the same magnitude as those caused by reservoir heterogeneities. Simplified semi-analytical models for cresting behavior and productivity predictions can be very misleading.

  15. Shifted one-parameter supersymmetric family of quartic asymmetric double-well potentials

    E-Print Network [OSTI]

    H. C. Rosu; S. C. Mancas; P. Chen

    2014-07-06T23:59:59.000Z

    Extending our previous work (Rosu, Mancas, Chen, Ann.Phys. 343 (2014) 87-102), we define supersymmetric partner potentials through a particular Riccati solution of the form F(x)=(x-c)^2-1, where c is a real shift parameter, and work out the quartic double-well family of one-parameter isospectral potentials obtained by using the corresponding general Riccati solution. For these parametric double well potentials, we study how the localization properties of the two wells depend on the parameter of the potentials for various values of the shifting parameter. We also consider the supersymmetric parametric family of the first double-well potential in the Razavy chain of double well potentials corresponding to F(x)=(1/2)sinh 2x-2(1+sqrt 2)sinh 2x/[(1+sqrt 2) cosh 2x+1], both unshifted and shifted, to test and compare the localization properties

  16. Bayesian Learning via Stochastic Gradient Langevin Dynamics Max Welling welling@ics.uci.edu

    E-Print Network [OSTI]

    Kaski, Samuel

    Bayesian Learning via Stochastic Gradient Langevin Dynamics Max Welling welling@ics.uci.edu D. Bren on iterative learning from small mini-batches. By adding the right amount of noise to a standard stochastic" and collects sam- ples after it has been surpassed. We apply the method to three models: a mixture of Gaussians

  17. Crown Zellerbach Well No. 2, Livingston Parish, Louisiana. Volume II. Well test data. Final report

    SciTech Connect (OSTI)

    Not Available

    1981-01-01T23:59:59.000Z

    The following well test data are included: final report of field test data, IGT compiled data, ERMI raw data, Gas Producer's Associated tentative method of testing for hydrogen sulfide in natural gas using length of stain tubes, IGT combined sample log, report on reservoir fluids, well test analysis, sampling and chemical analysis procedures, and scale and corrosion evaluation. (MHR)

  18. Spatially indirect excitons in coupled quantum wells

    SciTech Connect (OSTI)

    Lai, Chih-Wei Eddy

    2004-03-01T23:59:59.000Z

    Microscopic quantum phenomena such as interference or phase coherence between different quantum states are rarely manifest in macroscopic systems due to a lack of significant correlation between different states. An exciton system is one candidate for observation of possible quantum collective effects. In the dilute limit, excitons in semiconductors behave as bosons and are expected to undergo Bose-Einstein condensation (BEC) at a temperature several orders of magnitude higher than for atomic BEC because of their light mass. Furthermore, well-developed modern semiconductor technologies offer flexible manipulations of an exciton system. Realization of BEC in solid-state systems can thus provide new opportunities for macroscopic quantum coherence research. In semiconductor coupled quantum wells (CQW) under across-well static electric field, excitons exist as separately confined electron-hole pairs. These spatially indirect excitons exhibit a radiative recombination time much longer than their thermal relaxation time a unique feature in direct band gap semiconductor based structures. Their mutual repulsive dipole interaction further stabilizes the exciton system at low temperature and screens in-plane disorder more effectively. All these features make indirect excitons in CQW a promising system to search for quantum collective effects. Properties of indirect excitons in CQW have been analyzed and investigated extensively. The experimental results based on time-integrated or time-resolved spatially-resolved photoluminescence (PL) spectroscopy and imaging are reported in two categories. (i) Generic indirect exciton systems: general properties of indirect excitons such as the dependence of exciton energy and lifetime on electric fields and densities were examined. (ii) Quasi-two-dimensional confined exciton systems: highly statistically degenerate exciton systems containing more than tens of thousands of excitons within areas as small as (10 micrometer){sup 2} were observed. The spatial and energy distributions of optically active excitons were used as thermodynamic quantities to construct a phase diagram of the exciton system, demonstrating the existence of distinct phases. Optical and electrical properties of the CQW sample were examined thoroughly to provide deeper understanding of the formation mechanisms of these cold exciton systems. These insights offer new strategies for producing cold exciton systems, which may lead to opportunities for the realization of BEC in solid-state systems.

  19. Well funneled nuclear structure landscape: renormalization

    E-Print Network [OSTI]

    Idini, A; Barranco, F; Vigezzi, E; Broglia, R A

    2015-01-01T23:59:59.000Z

    A complete characterization of the structure of nuclei can be obtained by combining information arising from inelastic scattering, Coulomb excitation and $\\gamma-$decay, together with one- and two-particle transfer reactions. In this way it is possible to probe the single-particle and collective components of the nuclear many-body wavefunction resulting from their mutual coupling and diagonalising the low-energy Hamiltonian. We address the question of how accurately such a description can account for experimental observations. It is concluded that renormalizing empirically and on equal footing bare single-particle and collective motion in terms of self-energy (mass) and vertex corrections (screening), as well as particle-hole and pairing interactions through particle-vibration coupling allows theory to provide an overall, quantitative account of the data.

  20. Well funneled nuclear structure landscape: renormalization

    E-Print Network [OSTI]

    A. Idini; G. Potel; F. Barranco; E. Vigezzi; R. A. Broglia

    2015-04-29T23:59:59.000Z

    A complete characterization of the structure of nuclei can be obtained by combining information arising from inelastic scattering, Coulomb excitation and $\\gamma-$decay, together with one- and two-particle transfer reactions. In this way it is possible to probe the single-particle and collective components of the nuclear many-body wavefunction resulting from their mutual coupling and diagonalising the low-energy Hamiltonian. We address the question of how accurately such a description can account for experimental observations. It is concluded that renormalizing empirically and on equal footing bare single-particle and collective motion in terms of self-energy (mass) and vertex corrections (screening), as well as particle-hole and pairing interactions through particle-vibration coupling allows theory to provide an overall, quantitative account of the data.

  1. The Greening of Government: A Study of How Governments Define the Green Agenda

    E-Print Network [OSTI]

    The Greening of Government: A Study of How Governments Define the Green Agenda Executive Summary Institute for Electronic Government, IBM Corporation Page 2 This page is intentionally blank. In the green Corporation Page 3 Foreword What are governments doing to `green' themselves? How do they define their green

  2. Towards Test-Driven Software Defined Networking David Lebrun, Stefano Vissicchio, Olivier Bonaventure

    E-Print Network [OSTI]

    Bonaventure, Olivier

    an adaptation of test-driven soft- ware development methodologies to software defined networks (SDNs systems. In this paper, we make a first step towards a test-driven methodology for Software Defined for more structured networking methodologies. We argue that provably-effective prac- tices can be borrowed

  3. Linear Transformations In this Chapter, we will define the notion of a linear transformation between

    E-Print Network [OSTI]

    Carrell, Jim

    Chapter 6 Linear Transformations In this Chapter, we will define the notion of a linear transformation between two vector spaces V and W which are defined over the same field and prove the most basic transformations is equivalent to matrix theory. We will also study the geometric properties of linear

  4. Defining the Fresnel zone for broadband radiation Jeremy Pearce and Daniel Mittleman*

    E-Print Network [OSTI]

    Mittleman, Daniel

    Defining the Fresnel zone for broadband radiation Jeremy Pearce and Daniel Mittleman* Department of the Fresnel zone is central to many areas of imaging. In tomographic imaging, the transverse spatial resolution can be limited by the size of the first Fresnel zone, usually defined only for monochromatic

  5. Figure 5 : Inversed attenuation tomography The Fresnel volume thus defined, also called Frchet kernel

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Figure 5 : Inversed attenuation tomography The Fresnel volume thus defined, also called Fréchet system with the LSQR algorithm : Because the size of the Fresnel volume thus defined is dependent propose to compute the Fresnel weights for a monochromatic wave, increasing its frequency at each step

  6. Complete Set of Inner Products for a Discrete PT-symmetric Square-well Hamiltonian

    E-Print Network [OSTI]

    Miloslav Znojil

    2009-11-02T23:59:59.000Z

    A discrete $N-$point Runge-Kutta version $H^{(N)}({\\lambda})$ of one of the simplest non-Hermitian square-well Hamiltonians with real spectrum is studied. A complete set of its possible hermitizations (i.e., of the eligible metrics $\\Theta^{(N)}({\\lambda})$ defining its non-equivalent physical Hilbert spaces of states) is constructed, in closed form, for any coupling ${\\lambda}\\in (-1,1)$ and any matrix dimension $N$.

  7. Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain

    SciTech Connect (OSTI)

    Levinson, Ronnen; Akbari, Hashem; Berdahl, Paul

    2010-05-14T23:59:59.000Z

    Solar reflectance can vary with the spectral and angular distributions of incident sunlight, which in turn depend on surface orientation, solar position and atmospheric conditions. A widely used solar reflectance metric based on the ASTM Standard E891 beam-normal solar spectral irradiance underestimates the solar heat gain of a spectrally selective 'cool colored' surface because this irradiance contains a greater fraction of near-infrared light than typically found in ordinary (unconcentrated) global sunlight. At mainland U.S. latitudes, this metric RE891BN can underestimate the annual peak solar heat gain of a typical roof or pavement (slope {le} 5:12 [23{sup o}]) by as much as 89 W m{sup -2}, and underestimate its peak surface temperature by up to 5 K. Using R{sub E891BN} to characterize roofs in a building energy simulation can exaggerate the economic value N of annual cool-roof net energy savings by as much as 23%. We define clear-sky air mass one global horizontal ('AM1GH') solar reflectance R{sub g,0}, a simple and easily measured property that more accurately predicts solar heat gain. R{sub g,0} predicts the annual peak solar heat gain of a roof or pavement to within 2 W m{sup -2}, and overestimates N by no more than 3%. R{sub g,0} is well suited to rating the solar reflectances of roofs, pavements and walls. We show in Part II that R{sub g,0} can be easily and accurately measured with a pyranometer, a solar spectrophotometer or version 6 of the Solar Spectrum Reflectometer.

  8. Measuring solar reflectance - Part I: Defining a metric that accurately predicts solar heat gain

    SciTech Connect (OSTI)

    Levinson, Ronnen; Akbari, Hashem; Berdahl, Paul [Heat Island Group, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 (United States)

    2010-09-15T23:59:59.000Z

    Solar reflectance can vary with the spectral and angular distributions of incident sunlight, which in turn depend on surface orientation, solar position and atmospheric conditions. A widely used solar reflectance metric based on the ASTM Standard E891 beam-normal solar spectral irradiance underestimates the solar heat gain of a spectrally selective ''cool colored'' surface because this irradiance contains a greater fraction of near-infrared light than typically found in ordinary (unconcentrated) global sunlight. At mainland US latitudes, this metric R{sub E891BN} can underestimate the annual peak solar heat gain of a typical roof or pavement (slope {<=} 5:12 [23 ]) by as much as 89 W m{sup -2}, and underestimate its peak surface temperature by up to 5 K. Using R{sub E891BN} to characterize roofs in a building energy simulation can exaggerate the economic value N of annual cool roof net energy savings by as much as 23%. We define clear sky air mass one global horizontal (''AM1GH'') solar reflectance R{sub g,0}, a simple and easily measured property that more accurately predicts solar heat gain. R{sub g,0} predicts the annual peak solar heat gain of a roof or pavement to within 2 W m{sup -2}, and overestimates N by no more than 3%. R{sub g,0} is well suited to rating the solar reflectances of roofs, pavements and walls. We show in Part II that R{sub g,0} can be easily and accurately measured with a pyranometer, a solar spectrophotometer or version 6 of the Solar Spectrum Reflectometer. (author)

  9. Interpreting Horizontal Well Flow Profiles and Optimizing Well Performance by Downhole Temperature and Pressure Data

    E-Print Network [OSTI]

    Li, Zhuoyi

    2011-02-22T23:59:59.000Z

    be used to obtain downhole flow conditions, which is key information to control and optimize horizontal well production. However, the fluid flow in the reservoir is often multiphase and complex, which makes temperature and pressure interpretation very...

  10. Quantifying the Permeability Heterogeneity of Sandstone Reservoirs in Boonsville Field, Texas by Integrating Core, Well Log and 3D Seismic Data

    E-Print Network [OSTI]

    Song, Qian

    2013-04-29T23:59:59.000Z

    the permeability heterogeneity of the target reservoir by integrating core, well log and 3D seismic data. A set of permeability coefficients, variation coefficient, dart coefficient, and contrast coefficient, was defined in this study to quantitatively identify...

  11. Energetic Materials for EGS Well Stimulation (solids, liquids...

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

    Energetic Materials for EGS Well Stimulation (solids, liquids, gases) Energetic Materials for EGS Well Stimulation (solids, liquids, gases) Energetic Materials for EGS Well...

  12. Multifunctional Corrosion-resistant Foamed Well Cement Composites...

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

    Multifunctional Corrosion-resistant Foamed Well Cement Composites Multifunctional Corrosion-resistant Foamed Well Cement Composites Multifunctional Corrosion-resistant Foamed Well...

  13. ARSENIC IN PRIVATE WELLS IN NH YEAR 1 FINAL REPORT

    E-Print Network [OSTI]

    Bucci, David J.

    performed geospatial analysis of the well water arsenic estimates and survey results and produced the maps............................................................................................... 8 Well water treatment .................................................................................................. 7 Well water quality

  14. A WELL-POSED SHOOTING ALGORITHM FOR OPTIMAL ...

    E-Print Network [OSTI]

    2011-10-17T23:59:59.000Z

    bations and the well-posedness of the shooting algorithm for the perturbed problem. .... tion under small perturbation of the data, as well as the well-

  15. The Resistive-WELL detector: a compact spark-protected single amplification-stage MPGD

    E-Print Network [OSTI]

    G. Bencivenni; R. De Oliveira; G. Morello; M. Poli Lener

    2014-11-10T23:59:59.000Z

    In this work we present a novel idea for a compact spark-protected single amplification stage Micro-Pattern Gas Detector (MPGD). The detector amplification stage, realized with a structure very similar to a GEM foil, is embedded through a resistive layer in the readout board. A cathode electrode, defining the gas conversion/drift gap, completes the detector mechanics. The new structure, that we call Resistive-WELL (R-WELL), has some characteristics in common with previous MPGDs, such as C.A.T. and WELL, developed more than ten years ago. The prototype object of the present study has been realized in the 2009 by TE-MPE-EM Workshop at CERN. The new architecture is a very compact MPGD, robust against discharges and exhibiting a large gain ($\\sim$6$\\times$10$^3$), simple to construct and easy for engineering and then suitable for large area tracking devices as well as huge calorimetric apparata.

  16. Well test imaging - a new method for determination of boundaries from well test data

    SciTech Connect (OSTI)

    Slevinsky, B.A.

    1997-08-01T23:59:59.000Z

    A new method has been developed for analysis of well test data, which allows the direct calculation of the location of arbitrary reservoir boundaries which are detected during a well test. The method is based on elements of ray tracing and information theory, and is centered on the calculation of an instantaneous {open_quote}angle of view{close_quote} of the reservoir boundaries. In the absence of other information, the relative reservoir shape and boundary distances are retrievable in the form of a Diagnostic Image. If other reservoir information, such as 3-D seismic, is available; the full shape and orientation of arbitrary (non-straight line or circular arc) boundaries can be determined in the form of a Reservoir Image. The well test imaging method can be used to greatly enhance the information available from well tests and other geological data, and provides a method to integrate data from multiple disciplines to improve reservoir characterization. This paper covers the derivation of the analytical technique of well test imaging and shows examples of application of the technique to a number of reservoirs.

  17. Well completion report on installation of horizontal wells for in-situ remediation tests

    SciTech Connect (OSTI)

    Kaback, D.S.; Looney, B.B.; Corey, J.C.; Wright, L.M.

    1989-08-01T23:59:59.000Z

    A project to drill and install two horizontal vapor extraction/air-injection wells at the Savannah River Site (SRS), Aiken, South Carolina, was performed in September and October of 1988. This study was performed to test the feasibility of horizontal drilling technologies in unconsolidated sediments and to evaluate the effectiveness of in-situ air stripping of volatile organics from the ground water and unsaturated soils. A tremendous amount of knowledge was obtained during the drilling and installation of the two test wells. Factors of importance to be considered during design of another horizontal well drilling program follow. (1) Trips in and out of the borehole should be minimized to maintain hole stability. No reaming to enlarge the hole should be attempted. (2) Drilling fluid performance should be maximized by utilizing a low solids, low weight, moderate viscosity, high lubricity fluid. Interruption of drilling fluid circulation should be minimized. (3) Well materials should possess adequate flexibility to negotiate the curve. A flexible guide should be attached to the front of the well screen to guide the screen downhole. (4) Sands containing a minor amount of clay are recommended for completion targets, as better drilling control in the laterals was obtained in these sections.

  18. DNA-Directed Assembly of Anisotropic Nanoparticles on Lithographically Defined Surfaces and in Solution

    E-Print Network [OSTI]

    nanoparticles. These nanoparticles have been modified with deoxyribonucleic acid (DNA) oligomers of varying of this research is to assemble anisotropic nanoparticles into functional electronic devices, including memoryDNA-Directed Assembly of Anisotropic Nanoparticles on Lithographically Defined Surfaces

  19. Defining the public three moments of audience address in 20th century artistic production

    E-Print Network [OSTI]

    Deser, Abigail

    1991-01-01T23:59:59.000Z

    This paper examines strategies of audience address as manifest in the work of the Russian avant-garde of the 1920s, the sculptural practices of the American Minimalists and the critics who served to define their endeavors, ...

  20. Tracking a defined route for O2 migration in a dioxygen-activating diiron enzyme

    E-Print Network [OSTI]

    Song, Woon Ju

    For numerous enzymes reactive toward small gaseous compounds, growing evidence indicates that these substrates diffuse into active site pockets through defined pathways in the protein matrix. Toluene/o-xylene monooxygenase ...

  1. S98-1 Recycling Papers and Defining Plagiarism Legislative History

    E-Print Network [OSTI]

    Gleixner, Stacy

    S98-1 Recycling Papers and Defining Plagiarism Legislative History: At its meeting of February 2: "Approved as University Policy." Signed Robert Caret, 2-19-98 Policy Recommendation Recycling Papers

  2. Development of a Chemically Defined Medium to Assay the Metabolism of Lactic Acid Bacteria

    E-Print Network [OSTI]

    Kim, Inhye

    2014-04-16T23:59:59.000Z

    twelve chemically-defined ingredients. In order to increase the bioavailability of hydrophobic chemical additives, such as the isoflavone genistein (4',5,7-trihydroxyisoflavone), tween 80 was incorporated into the final medium at high levels (10% v...

  3. U.S. Average Depth of Natural Gas Exploratory Wells Drilled (Feet per Well)

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease Separation,ProductionMarketed18,736RevisionExploratory WellsWells

  4. Segmentation of complex geophysical structures with well Running title: Image segmentation with well data.

    E-Print Network [OSTI]

    Boyer, Edmond

    with well data. Authors: Christian Gout§, and Carole Le Guyader. Complete affiliation: § Universit´e de 96822-2273 , USA. chris gout@cal.berkeley.edu : INSA de Rennes 20 Avenue des Buttes de Co¨esmes CS 14315 35043 Rennes, France. carole.le-guyader@insa-rennes.fr Corresponding author : Christian Gout

  5. The Effect of Well Trajectory on Production Performance of Tight Gas Wells

    E-Print Network [OSTI]

    Aldousari, Mohammad

    2012-02-14T23:59:59.000Z

    been studied. The aim of this research is to investigate the effect of the trajectory angle on pressure drop in horizontal wells. In addition, the contribution of water flow to pressure drop is a part of this research. Generally, water comes from...

  6. New wells architectures to access deep geothermal reservoirsand increase well productivity

    E-Print Network [OSTI]

    Boyer, Edmond

    with the higher costs of well drilling and completion. Our first step in tackling theproblem,was to consider with the wellbore flow which is modelled by a 1D momentum equation describing the conservation of the fluid in the wellbore fluid coupled to the heat transfer in the reservoir.We apply this coupled wellbore and reservoir

  7. Automated solar collector installation design including ability to define heterogeneous design preferences

    DOE Patents [OSTI]

    Wayne, Gary; Frumkin, Alexander; Zaydman, Michael; Lehman, Scott; Brenner, Jules

    2013-01-08T23:59:59.000Z

    Embodiments may include systems and methods to create and edit a representation of a worksite, to create various data objects, to classify such objects as various types of pre-defined "features" with attendant properties and layout constraints. As part of or in addition to classification, an embodiment may include systems and methods to create, associate, and edit intrinsic and extrinsic properties to these objects. A design engine may apply of design rules to the features described above to generate one or more solar collectors installation design alternatives, including generation of on-screen and/or paper representations of the physical layout or arrangement of the one or more design alternatives. Embodiments may also include definition of one or more design apertures, each of which may correspond to boundaries in which solar collector layouts should comply with distinct sets of user-defined design preferences. Distinct apertures may provide heterogeneous regions of collector layout according to the user-defined design preferences.

  8. Automated solar collector installation design including ability to define heterogeneous design preferences

    DOE Patents [OSTI]

    Wayne, Gary; Frumkin, Alexander; Zaydman, Michael; Lehman, Scott; Brenner, Jules

    2014-04-29T23:59:59.000Z

    Embodiments may include systems and methods to create and edit a representation of a worksite, to create various data objects, to classify such objects as various types of pre -defined "features" with attendant properties and layout constraints. As part of or in addition to classification, an embodiment may include systems and methods to create, associate, and edit intrinsic and extrinsic properties to these objects. A design engine may apply of design rules to the features described above to generate one or more solar collectors installation design alternatives, including generation of on-screen and/or paper representations of the physical layout or arrangement of the one or more design alternatives. Embodiments may also include definition of one or more design apertures, each of which may correspond to boundaries in which solar collector layouts should comply with distinct sets of user-defined design preferences. Distinct apertures may provide heterogeneous regions of collector layout according to the user-defined design preferences.

  9. A Proposal for User-defined Reductions in OpenMP

    SciTech Connect (OSTI)

    Duran, A; Ferrer, R; Klemm, M; de Supinski, B R; Ayguade, E

    2010-03-22T23:59:59.000Z

    Reductions are commonly used in parallel programs to produce a global result from partial results computed in parallel. Currently, OpenMP only supports reductions for primitive data types and a limited set of base language operators. This is a significant limitation for those applications that employ user-defined data types (e. g., objects). Implementing manual reduction algorithms makes software development more complex and error-prone. Additionally, an OpenMP runtime system cannot optimize a manual reduction algorithm in ways typically applied to reductions on primitive types. In this paper, we propose new mechanisms to allow the use of most pre-existing binary functions on user-defined data types as User-Defined Reduction (UDR) operators. Our measurements show that our UDR prototype implementation provides consistently good performance across a range of thread counts without increasing general runtime overheads.

  10. Category:Single-Well And Cross-Well Seismic Imaging | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here. Category:ConceptualGeothermal RegulatoryInformation Cross-Well

  11. U.S. Average Depth of Crude Oil Exploratory Wells Drilled (Feet per Well)

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease Separation,ProductionMarketed18,736Revision DecreasesWells Drilled

  12. U.S. Average Depth of Dry Holes Exploratory Wells Drilled (Feet per Well)

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease Separation,ProductionMarketed18,736RevisionExploratory Wells Drilled

  13. Fully defined saltwater medium for cultivation of and toxicity testing with marine copepod Acartia tonsa

    SciTech Connect (OSTI)

    Kusk, K.O.; Wollenberger, L.

    1999-07-01T23:59:59.000Z

    The marine copepod Acartia tonsa and the food organism Rhodomonas salina were cultured in fully defined medium for 8 months without problems. Both organisms were also cultured in natural seawater and in a commercial salt mixture for at least two generations before the sensitivities of A. tonsa to bisphenol A, potassium dichromate, and 3,5-dichlorophenol in the three different media were compared and found to be at the same level. The defined medium may be used for cultivation and testing, thus avoiding unknown background contaminants.

  14. Horizontal Well Placement Optimization in Gas Reservoirs Using Genetic Algorithms 

    E-Print Network [OSTI]

    Gibbs, Trevor Howard

    2011-08-08T23:59:59.000Z

    of the genetic algorithm was analyzed through five different case scenarios, one involving a vertical well and four involving horizontal wells. The genetic algorithm approach is used to evaluate the effect of well placement in heterogeneous and anisotropic...

  15. UTM Well Coordinates for the Boise Hydrogeophysical Research Site (BHRS)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    David Lim

    A series of oscillatory pumping tests were performed at the BHRS. The data collected from these wells will be used to tomographically image the shallow subsurface. This excel file only contains well coordinates for all wells at the Boise site.

  16. UTM Well Coordinates for the Boise Hydrogeophysical Research Site (BHRS)

    SciTech Connect (OSTI)

    David Lim

    2014-12-19T23:59:59.000Z

    A series of oscillatory pumping tests were performed at the BHRS. The data collected from these wells will be used to tomographically image the shallow subsurface. This excel file only contains well coordinates for all wells at the Boise site.

  17. Economic viability of multiple-lateral horizontal wells

    E-Print Network [OSTI]

    Smith, Christopher Jason

    1995-01-01T23:59:59.000Z

    Horizontal wells are gaining popularity throughout the petroleum industry as a means to increase well productivity and enhance incremental economics. Horizontal wells provide greater reservoir exposure and are useful in intersecting additional pay...

  18. Natural Gas Horizontal Well Control Act (West Virginia)

    Broader source: Energy.gov [DOE]

    The Natural Gas Horizontal Well Control Act regulates the construction, alteration, enlargement, abandonment and removal of horizontal wells and associated water and wastewater use and storage. The...

  19. Exploratory Well At Long Valley Caldera Geothermal Area (Sorey...

    Open Energy Info (EERE)

    395. Notes Among these wells were exploration and monitoring wells drilled near the Fish Hatchery Springs in preparation for the siting of a second binary geothermal power...

  20. Exploratory Well At North Brawley Geothermal Area (Matlick &...

    Open Energy Info (EERE)

    Exploration Basis Deep exploratory wells were drilled after a phase of thermal gradient wells helped narrow down the best drilling targets. This activity was done for initial...

  1. Pagosa Springs Private Wells Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Private Wells Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Pagosa Springs Private Wells Space Heating Low Temperature Geothermal Facility...

  2. Compound and Elemental Analysis At Salt Wells Area (Shevenell...

    Open Energy Info (EERE)

    ENERGYGeothermal Home Exploration Activity: Compound and Elemental Analysis At Salt Wells Area (Shevenell & Garside, 2003) Exploration Activity Details Location Salt Wells...

  3. Raft River monitor well potentiometric head responses and water...

    Open Energy Info (EERE)

    wells that are sampled one season cannot be sampled the next. In addition, information on well construction, completion, and production is often unreliable or not available. These...

  4. Fully Coupled Well Models for Fluid Injection and Production...

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

    engineers and operators have control during the geologic sequestration process. Current drilling practices provided well engineers flexibility in designing well trajectories and...

  5. Incidence of primary liver cancer and aetiological aspects: a study of a defined population from a low-endemicity area

    E-Print Network [OSTI]

    J Kaczynski; G Hansson; S Wallerstedt

    Summary The prevalence of primary liver cancer (PLC) varies throughout the world. It has been attributed to variations in incidence of the predominant histological type, hepatocellular carcinoma (HCC). The incidence of PLC types other than HCC such as cholangiocellular carcinoma (CCC) is far less known, especially in low-incidence areas. The aetiology of HCC and other PLC types is obscure, with the exception of the association between HCC and cirrhosis as well as chronic viral hepatitis. The present retrospective incidence and aetiology study concerns a well-defined population from a period with a high autopsy frequency. Preserved biopsy specimens were re-evaluated histopathologically and patient records were studied. Among 590 histologically verified cases of PLC, HCC constituted 90%, CCC 8 % and a mixed form of these types 1%. At the end of the study period the annual age-standardised incidence rate of HCC was 3.6 cases per 100 000 inhabitants. Other PLC types were hepatoblastoma (n = 3), fibrolamellar carcinoma (n = 2), angiosarcoma (n = 1) and infantile haemangioendothelioma (n = 1), each constituting less than I % of the PLC cases. Comparing HCC with CCC we found that cirrhosis (70%) and alcoholism (21%) was significantly more frequent in HCC, and cholelithiasis was significantly more common (60%) in patients with CCC. In the majority of the PLC cases with liver cirrhosis this disorder was unknown before diagnosis of the tumour.

  6. Modeling the segment polarity gene network First: System is biologically defined; known expression patterns

    E-Print Network [OSTI]

    Albert, Réka

    are assumed to be not expressed. · Generate a set of kinetic parameters from the biologically relevant rangeModeling the segment polarity gene network First: System is biologically defined; known expression Boolean model: mRNA and protein activity is switch-like Validation: reproduces known gene expression

  7. Specification of a Component-based Domotic System to Support User-Defined Scenarios

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Specification of a Component-based Domotic System to Support User-Defined Scenarios Fady Hamoui. In this ar- ticle, we propose the specification of a component-based domotic system that tackles this issue Domotic environments are composed of electri- cal / electronic devices connected to a network and con

  8. COMPACT DOMINATION FOR GROUPS DEFINABLE IN LINEAR O-MINIMAL STRUCTURES

    E-Print Network [OSTI]

    Eleftheriou, Pantelis E.

    that the canonical homomorphism : G G/G00 is a kind of intrinsic `standard part map'. Recall the following of an ordered field, standard part maps have already appeared in the following two situations, among others. In [BO2, Definition 4.1], a standard part map is defined from the `finite part' Fin(Mn ) of Mn onto Rn

  9. Scalability of Control Planes for Software Defined Networks:Modeling and Evaluation

    E-Print Network [OSTI]

    Li, Xiang-Yang

    Scalability of Control Planes for Software Defined Networks:Modeling and Evaluation Jie Hu, Chuang on the modeling of the scalability of SDN control planes, and a scalability metric is also proposed which may network (SDN), designing a scalable SDN control plane becomes a critical problem. An effective approach

  10. Defining a Taxonomy for Research Areas on ICT for Governance and Policy Modelling

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Defining a Taxonomy for Research Areas on ICT for Governance and Policy Modelling Fenareti presents a taxonomy classifying the research themes, the research areas and the research sub in research, policy and practice, the taxonomy brings together the open, linked data and visual analytics

  11. Data Validation Using Data Descriptors Data validation is often defined by six data descriptors

    E-Print Network [OSTI]

    APPENDIX N Data Validation Using Data Descriptors Data validation is often defined by six data descriptors: 1) reports to decision maker 2) documentation 3) data sources 4) analytical method and detection limit 5) data review 6) data quality indicators The decision maker or reviewer examines the data

  12. Confined Spaces OSHA defines non-permit-required confined spaces as

    E-Print Network [OSTI]

    ; and 3) has a limited or restricted means of entry or exit (these spaces may include underground vaults, tanks, storage bins, pits and diked areas, vessels, silos and other similar areas). OSHA defines permit or state office will field the call for help. #12;

  13. Defining a Stream Restoration Body of Knowledge as a Basis for National Certification

    E-Print Network [OSTI]

    Curran, Joanna C.

    Forum Defining a Stream Restoration Body of Knowledge as a Basis for National Certification Sue L-7900.0000814 Introduction The practice of stream restoration has become widely accepted as an essential component protocols remain for the practice of stream restoration. Given the lack of consistency, many restoration

  14. CARIBBEAN COLLOQUIUM ON POWER QUALITY (CCPQ), JUNE 2003 100 Defining Reactive Power in Circuit Transients via

    E-Print Network [OSTI]

    Stankoviæ, Aleksandar

    CARIBBEAN COLLOQUIUM ON POWER QUALITY (CCPQ), JUNE 2003 100 Defining Reactive Power in Circuit the notion of reactive power during circuit transients. The definition we propose is based on the concept, namely Short- Time Fourier Coefficients and Haar Wavelets. We illustrate this "dynamic" reactive power

  15. Leadership is not defined by one characteristic or quality. Effective leaders come from a range of

    E-Print Network [OSTI]

    Huang, Haiying

    Leadership is not defined by one characteristic or quality. Effective leaders come from a range of cultural backgrounds and often have varied leadership styles. The Goolsby Leadership Academy or imitating others, but by developing their distinctive strengths. The Goolsby Leadership Academy invigorates

  16. in North america, Canada Goose (Branta canaden-sis) populations are defined and partially managed

    E-Print Network [OSTI]

    Jodice, Patrick

    in North america, Canada Goose (Branta canaden- sis) populations are defined and partially managed based on affiliations with breeding grounds. three populations of migratory Canada Geese occur- ulation (hindman et al. 2004). Canada Geese from the atlantic Population (predominantly Branta canadensis

  17. A Method To Define the Carboxyl Terminal of Salvatore Sechi and Brian T. Chait*

    E-Print Network [OSTI]

    Chait, Brian T.

    A Method To Define the Carboxyl Terminal of Proteins Salvatore Sechi and Brian T. Chait* Laboratory, New York 10021 Accurate definition of the carboxyl terminal of proteins is necessary for elucidating posttranslational processing at the C-terminal and more generally for characterizing protein primary structures

  18. Modelling the Zn emissions from roofing materials at Crteil city scale -Defining a methodology

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Modelling the Zn emissions from roofing materials at Créteil city scale - Defining a methodology@cereve.enpc.fr) Abstract Today, urban runoff is considered as an important source of environment pollution. Roofing. An accurate evaluation of contaminant flows from roofs is thus required at the city scale. This paper aims

  19. RESEARCH ARTICLE Open Access A metabolomic strategy defines the regulation of

    E-Print Network [OSTI]

    Miska, Eric

    RESEARCH ARTICLE Open Access A metabolomic strategy defines the regulation of lipid content the genome that regulate fat metabolism and have led to the discovery of mammalian genes involved in energy balance [13,14]. * Correspondence: jlg40@mole.bio.cam.ac.uk 1 Department of Biochemistry, University

  20. Defining Complexity: A Commentary to a paper by Charles H. Bennett

    E-Print Network [OSTI]

    Mark Perakh

    2007-01-23T23:59:59.000Z

    The letter by Mark Perakh entitled "DEFINING COMPLEXITY: A Commentary to a paper by Charles H. Bennett" is here archived with the permission of the author. This letter was downloaded from the site "On Talk Reason, http://www.talkreason.org/articles/complexity.pdf, August (2004)".

  1. Defining and Model Checking Abstractions of Complex Railway Models using CSP||B

    E-Print Network [OSTI]

    Doran, Simon J.

    Defining and Model Checking Abstractions of Complex Railway Models using CSP||B Faron Moller1. In [11, 10] we propose a new modelling approach for railway interlockings. We use CSP||B [13], which involves events such as train movements and, in the interlocking, state based reasoning. In this sense, CSP

  2. Defining groundwater remediation objectives with cost-1 benefit analysis: does it work?2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Defining groundwater remediation objectives with cost-1 benefit analysis: does it work?2 3 J at the local (site) level. This paper questions whether12 CBA is relevant for evaluating groundwater management the cost of groundwater14 protection and remediation measures at the regional (water body) level. It also

  3. SYSTEMS DIVISION RESEARCH 2013 1 Abstract--This research seeks to define an appropriate

    E-Print Network [OSTI]

    SYSTEMS DIVISION RESEARCH 2013 1 1 Abstract-- This research seeks to define an appropriate System of Systems (SoS) Risk Management framework and the production of a support tool enabling Management literature. Index Terms--Systems Engineering, System of Systems, System of Systems Engineering

  4. MHC Class II Tetramers and the Pursuit of Antigen-specific T cells: Define, Deviate, Delete

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 MHC Class II Tetramers and the Pursuit of Antigen-specific T cells: Define, Deviate, Delete Class II tetramers Corresponding Author: Roberto Mallone, MD Benaroya Research Institute at Virginia secretion and proliferation. The advent of MHC Class II tetramers has added a pivotal tool to our research

  5. Nanotechnology is defined as materi-als and systems ranging from 1 to 100

    E-Print Network [OSTI]

    Wong, Pak Kin

    Nanotechnology is defined as materi- als and systems ranging from 1 to 100 nm which exhibit novel in the potentially revo- lutionary impacts that nanotechnology has to offer clinical medicine, particu- larly oncology. Numerous proof of concept appli- cations of nanotechnology have been described for high impact

  6. CLOUD FRACTION: CAN IT BE DEFINED, CAN IT BE MEASURED, AND IF WE KNEW IT

    E-Print Network [OSTI]

    Schwartz, Stephen E.

    droplets and/or ice particles in the atmosphere above the earth's surface. Total cloud cover: Fraction, JGR (ERBE, 1988) Cloud cover is a loosely defined term. Potter Stewart (U.S. Supreme Court, 1964) I feedbacks. Accurate representation of cloud radiative effects is essential in climate models. Getting cloud

  7. Well completion process for formations with unconsolidated sands

    DOE Patents [OSTI]

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

    2003-04-29T23:59:59.000Z

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

  8. TWRS privatization phase 1 monitoring wells engineering study

    SciTech Connect (OSTI)

    Williams, B.A.; Newcomer, D.R.

    1998-04-01T23:59:59.000Z

    This engineering study provides an evaluation of existing wells and boreholes (wells) within the proposed location for the Tank Waste Remediation System (TWRS) Privatization Phase 1 demonstration site. Phase 1 is part of the TWRS program that was established to manage, retrieve, treat, immobilize, and dispose of high-level waste stored in underground tanks at the Hanford Site. This evaluation is to determine which wells will remain active within the demonstration site based on regulatory, programmatic, or other beneficial use requirements. An initial evaluation of wells within the demonstration site was conducted in 1996. However, changes in construction plans and expansion of the demonstration site necessitated a reevaluation and reclassification of the wells that are within the expanded site. Impacted wells include many of those previously evaluated as well as additional wells identified in or near the expansion areas. Thirty-three wells exist within and immediately adjacent to the identified boundary of the proposed demonstration site. The wells identified for decommissioning will be abandoned according to the well decommissioning plan. Future well requirements within the site include replacement wells for those wells impacted by construction activities, replacements for Resource Conservation and Recovery Act of 1976 (RCRA) wells going dry, and a new characterization well installed to support a TWRS Phase 2 site assessment.

  9. Physiological Imaging-Defined, Response-Driven Subvolumes of a Tumor

    SciTech Connect (OSTI)

    Farjam, Reza [Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan (United States) [Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan (United States); Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan (United States); Tsien, Christina I.; Feng, Felix Y. [Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan (United States)] [Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan (United States); Gomez-Hassan, Diana [Department of Radiology, University of Michigan, Ann Arbor, Michigan (United States)] [Department of Radiology, University of Michigan, Ann Arbor, Michigan (United States); Hayman, James A.; Lawrence, Theodore S. [Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan (United States)] [Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan (United States); Cao, Yue, E-mail: yuecao@umich.edu [Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan (United States) [Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan (United States); Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan (United States); Department of Radiology, University of Michigan, Ann Arbor, Michigan (United States)

    2013-04-01T23:59:59.000Z

    Purpose: To develop an image analysis framework to delineate the physiological imaging-defined subvolumes of a tumor in relating to treatment response and outcome. Methods and Materials: Our proposed approach delineates the subvolumes of a tumor based on its heterogeneous distributions of physiological imaging parameters. The method assigns each voxel a probabilistic membership function belonging to the physiological parameter classes defined in a sample of tumors, and then calculates the related subvolumes in each tumor. We applied our approach to regional cerebral blood volume (rCBV) and Gd-DTPA transfer constant (K{sup trans}) images of patients who had brain metastases and were treated by whole-brain radiation therapy (WBRT). A total of 45 lesions were included in the analysis. Changes in the rCBV (or K{sup trans})–defined subvolumes of the tumors from pre-RT to 2 weeks after the start of WBRT (2W) were evaluated for differentiation of responsive, stable, and progressive tumors using the Mann-Whitney U test. Performance of the newly developed metrics for predicting tumor response to WBRT was evaluated by receiver operating characteristic (ROC) curve analysis. Results: The percentage decrease in the high-CBV-defined subvolumes of the tumors from pre-RT to 2W was significantly greater in the group of responsive tumors than in the group of stable and progressive tumors (P<.007). The change in the high-CBV-defined subvolumes of the tumors from pre-RT to 2W was a predictor for post-RT response significantly better than change in the gross tumor volume observed during the same time interval (P=.012), suggesting that the physiological change occurs before the volumetric change. Also, K{sup trans} did not add significant discriminatory information for assessing response with respect to rCBV. Conclusion: The physiological imaging-defined subvolumes of the tumors delineated by our method could be candidates for boost target, for which further development and evaluation is warranted.

  10. Investigation and evaluation of geopressured-geothermal wells. Final report, Tenneco Fee N No. 1 Well Terrebonne Paris, Louisiana

    SciTech Connect (OSTI)

    Dobson, R.J.; Hartsock, J.H.; McCoy, R.L.; Rodgers, J.A.

    1980-09-01T23:59:59.000Z

    The reservoir conditions that led to the choice of this well as the fifth well of opportunity are described as well as the attempts to complete the well for high-volume brine production. Individual opinions concerning underlying and conributing causes for the liner failure which aborted the completion attempt are included. (MHR)

  11. Testing geopressured geothermal reservoirs in existing wells. Wells of Opportunity Program final contract report, 1980-1981

    SciTech Connect (OSTI)

    Not Available

    1982-01-01T23:59:59.000Z

    The geopressured-geothermal candidates for the Wells of Opportunity program were located by the screening of published information on oil industry activity and through direct contact with the oil and gas operators. This process resulted in the recommendation to the DOE of 33 candidate wells for the program. Seven of the 33 recommended wells were accepted for testing. Of these seven wells, six were actually tested. The first well, the No. 1 Kennedy, was acquired but not tested. The seventh well, the No. 1 Godchaux, was abandoned due to mechanical problems during re-entry. The well search activities, which culminated in the acceptance by the DOE of 7 recommended wells, were substantial. A total of 90,270 well reports were reviewed, leading to 1990 wells selected for thorough geological analysis. All of the reservoirs tested in this program have been restricted by one or more faults or permeability barriers. A comprehensive discussion of test results is presented.

  12. Sufficient Conditions for Well-behaved Adaptive Hypermedia Systems

    E-Print Network [OSTI]

    De Bra, Paul

    for the architecture of adaptive hypermedia applications: the Adaptive Hypermedia Application Model (AHAM) [DHW99]. AHAM describes AHS at an abstract level, using an architecture consisting of three parts: · a domain (AE) are discussed in earlier paper [WDD01]. We defined a rule language for AHS, AHAM-CA and proposed

  13. Downhole safety valve for subterranean well and method

    SciTech Connect (OSTI)

    Eriksen, E.P.V.; Drakeley, B.K.; Carmody, M.A.

    1990-07-31T23:59:59.000Z

    This patent describes a method of establishing communication with a control fluid conduit provided in the tubular wall of a fluid pressure operated downhole tool. Also described is apparatus for effecting the downhole severing of a radially, inwardly directed hollow protuberance on the tubular wall of a valve housing, the tubular wall also defining a no-go shoulder above the protuberance.

  14. Multi-well sample plate cover penetration system

    DOE Patents [OSTI]

    Beer, Neil Reginald (Pleasanton, CA)

    2011-12-27T23:59:59.000Z

    An apparatus for penetrating a cover over a multi-well sample plate containing at least one individual sample well includes a cutting head, a cutter extending from the cutting head, and a robot. The cutting head is connected to the robot wherein the robot moves the cutting head and cutter so that the cutter penetrates the cover over the multi-well sample plate providing access to the individual sample well. When the cutting head is moved downward the foil is pierced by the cutter that splits, opens, and folds the foil inward toward the well. The well is then open for sample aspiration but has been protected from cross contamination.

  15. 16 Green streak defining bedding in purple slates of Mettawee Facies, outcrop location

    E-Print Network [OSTI]

    Kidd, William S. F.

    ;#12;#12;#12;#12;#12;#12;#12;#12;16 Figure 2.3 Green streak defining bedding in purple slates of Mettawee Facies, outcrop location WNW of Mudd Pond (423-5). #12;17 Figure 2.4 F5 fold of interbedded arenites and green slates of Bomoseen to compass, within the Browns Pond Formation, lying interbedded with black slate. Outcrop lies in SW corner

  16. Critical Chemical-Mechanical Couplings that Define Permeability Modifications in Pressure-Sensitive Rock Fractures

    SciTech Connect (OSTI)

    Derek Elsworth; Abraham Grader; Susan Brantley

    2007-04-25T23:59:59.000Z

    This work examined and quantified processes controlling changes in the transport characteristics of natural fractures, subjected to coupled thermal-mechanical-chemical (TMC) effects. Specifically, it examined the effects of mineral dissolution and precipitation mediated by mechanical effects, using laboratory through-flow experiments concurrently imaged by X-ray CT. These were conducted on natural and artificial fractures in cores using water as the permeant. Fluid and mineral mass balances are recorded and are correlated with in-sample saturation, porosity and fracture aperture maps, acquired in real-time by X-ray CT-imaging at a maximum spatial resolution of 15-50 microns per pixel. Post-test, the samples were resin-impregnated, thin-sectioned, and examined by microscopy to define the characteristics of dissolution and precipitation. The test-concurrent X-ray imaging, mass balances, and measurements of permeability, together with the post-test microscopy, were used to define dissolution/precipitation processes, and to constrain process-based models. These models define and quantify key processes of pressure solution, free-face dissolution, and shear-dilation, and the influence of temperature, stress level, and chemistry on the rate of dissolution, its distribution in space and time, and its influence on the mechanical and transport properties of the fracture.

  17. Completion Report for Well ER-EC-12 Corrective Action Units 101 and 102: Central and Western Pahute Mesa

    SciTech Connect (OSTI)

    NSTec Environmental Management

    2011-04-30T23:59:59.000Z

    Well ER-EC-12 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 National Security Site (formerly known as the Nevada Test Site), Nye County, Nevada. The well was drilled in June and July 2010 as part of the Pahute Mesa Phase II drilling program. The primary purpose of the well was to provide detailed hydrogeologic information in the Tertiary volcanic section in the area between Pahute Mesa and the Timber Mountain caldera complex that will help address uncertainties within the Pahute Mesa–Oasis Valley hydrostratigraphic model. In particular, the well was intended to help define the structural position and hydraulic parameters for volcanic aquifers potentially down-gradient from historic underground nuclear tests on Pahute Mesa. It may also be used as a long-term monitoring well.

  18. Completion Report for Well ER-EC-15 Corrective Action Units 101 and 102: Central and Western Pahute Mesa

    SciTech Connect (OSTI)

    NSTec Environmental Management

    2011-05-31T23:59:59.000Z

    Well ER-EC-15 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 National Security Site (formerly known as the Nevada Test Site), Nye County, Nevada. The well was drilled in October and November 2010, as part of the Pahute Mesa Phase II drilling program. The primary purpose of the well was to provide detailed hydrogeologic information in the Tertiary volcanic section in the area between Pahute Mesa and the Timber Mountain caldera complex that will help address uncertainties within the Pahute Mesa–Oasis Valley hydrostratigraphic model. In particular, the well was intended to help define the structural position and hydraulic parameters of volcanic aquifers potentially down-gradient from underground nuclear tests on Pahute Mesa. It may also be used as a long-term monitoring well.

  19. Measuring and modeling activity and travel well-being

    E-Print Network [OSTI]

    Abou Zeid, Maya, 1979-

    2009-01-01T23:59:59.000Z

    This thesis develops methods for the measurement of activity and travel well-being and models for linking well-being and behavior. The hypotheses underlying this research are that (1) activities are planned to maintain or ...

  20. Hot exciton transport in ZnSe quantum wells

    E-Print Network [OSTI]

    Zhao, Hui; Moehl, Sebastian; Wachter, Sven; Kalt, Heinz

    2002-02-01T23:59:59.000Z

    The in-plane transport of excitons in ZnSe quantum wells is investigated directly by microphotoluminescence in combination with a solid immersion lens. Due to the strong Froehlich coupling, the initial kinetic energy of the excitons is well...

  1. Temperature behavior in the build section of multilateral wells 

    E-Print Network [OSTI]

    Romero Lugo, Analis Alejandra

    2005-11-01T23:59:59.000Z

    Intelligent well completions are increasingly being used in horizontal, multilateral, and multi-branching wells. Such completions are equipped with permanent sensors to measure temperature and pressure profiles, which must ...

  2. Development Wells At Fenton Hill HDR Geothermal Area (Dreesen...

    Open Energy Info (EERE)

    This re-drilled well is known as EE-3A, and successfully established hydraulic communication between the two wells. References Donald S. Dreesen, Mark V. Malzahn, Michael C....

  3. Comparison of Emperical Decline Curve Analysis for Shale Wells 

    E-Print Network [OSTI]

    Kanfar, Mohammed Sami

    2013-07-13T23:59:59.000Z

    methods are benchmarked against simulation. This study compares the decline methods to four simulation cases which represent the common shale declines observed in the field. Shale wells, which are completed with horizontal wells and multiple traverse...

  4. Effect of pressure-dependent permeability on tight gas wells

    E-Print Network [OSTI]

    Franquet Barbara, Mariela

    2005-08-29T23:59:59.000Z

    an economically adequate production rate. Other modern technologies for the production of tight gas reservoirs include horizontal and multilateral wells, as well as underbalanced drilling. _________________ This thesis follows the style of the SPE...

  5. Rod Pumping, Gas Well Dewatering and Gas Lift

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

    treat the well. Another item is a downhole sucker rod pump that sets new efficiency standards. Finally, there is a diverter downhole separator, for use in wells where one...

  6. Application of horizontal wells in steeply dipping reservoirs

    E-Print Network [OSTI]

    Lopez Navarro, Jose David

    1995-01-01T23:59:59.000Z

    horizontal wells can increase the oil recovery factor from almost 35% under primary production to 40%. A significant incremental oil recovery could be expected by employing horizontal wells for simultaneous gas and water injection. A comparison...

  7. Pressure transient testing and productivity analysis for horizontal wells 

    E-Print Network [OSTI]

    Cheng, Yueming

    2004-11-15T23:59:59.000Z

    This work studied the productivity evaluation and well test analysis of horizontal wells. The major components of this work consist of a 3D coupled reservoir/wellbore model, a productivity evaluation, a deconvolution ...

  8. Single-well Modeling of Coalbed Methane Production

    E-Print Network [OSTI]

    Martynova, Elena

    2014-01-14T23:59:59.000Z

    curves. Further solution of a specific CBM single-well problem and parametric study for evaluation impact of separate parameters were conducted. Focus of the studies was on well production forecasting, effect of mechanical properties of coal...

  9. Lithologic Descriptions and Temperature Profiles of Five Wells...

    Open Energy Info (EERE)

    and temperature profiles of the southern and western Valles caldera region have been well constrained with the use of data from the VC-1, AET-4, WC 23-4, PC-1, and PC-2 wells....

  10. Effects of borehole stability on well log data

    E-Print Network [OSTI]

    Grandi Karam, Samantha, 1973-

    2003-01-01T23:59:59.000Z

    In this thesis we analyze the effects of borehole irregularities on well logs and develop methods to obtain reliable formation properties from such logs. Data from a well in eastern Venezuela are analysed. Borehole ...

  11. Well Log Data At Blue Mountain Geothermal Area (Fairbank & Niggemann...

    Open Energy Info (EERE)

    search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Log Data At Blue Mountain Geothermal Area (Fairbank & Niggemann, 2004) Exploration Activity Details...

  12. SB 4 Well Stimulation Treatment Regulations Text of Proposed Regulations

    E-Print Network [OSTI]

    surveys; routine activities that do not affect the integrity of the well or the formation; the removal SB 4 Well Stimulation Treatment Regulations Text of Proposed Regulations Page 1 of 13 SB 4 WELL STIMULATION TREATMENT REGULATIONS TEXT OF PROPOSED REGULATIONS Added text is shown in underline

  13. WELL-CENTERED OVERRINGS OF AN INTEGRAL DOMAIN

    E-Print Network [OSTI]

    Heinzer, William

    WELL-CENTERED OVERRINGS OF AN INTEGRAL DOMAIN is a localization of A if and only if B is flat and well-centered over A. If the integral clo* *sure.3 that a simple flat well-centered overring of an integral domain A is a localization of A. If the integral

  14. WELL-CENTERED OVERRINGS OF AN INTEGRAL DOMAIN

    E-Print Network [OSTI]

    Heinzer, William

    WELL-CENTERED OVERRINGS OF AN INTEGRAL DOMAIN William Heinzer Department of Mathematics, Purdue of A if and only if B is flat and well-centered over A. If the integral closure of A is a Krull domain in Theorem 3.6 that every finitely generated well-centered over- ring of an integrally closed domain is flat

  15. Calcite Mineral Scaling Potentials of High-Temperature Geothermal Wells

    E-Print Network [OSTI]

    Karlsson, Brynjar

    #12;i Calcite Mineral Scaling Potentials of High-Temperature Geothermal Wells Alvin I. Remoroza-Temperature Geothermal Wells Alvin I. Remoroza 60 ECTS thesis submitted in partial fulfillment of a Magister Scientiarum #12;iv Calcite Mineral Scaling Potentials of High-Temperature Geothermal Wells 60 ECTS thesis

  16. Soda Lake Well Lithology Data and Geologic Cross-Sections

    SciTech Connect (OSTI)

    Faulds, James E.

    2013-12-31T23:59:59.000Z

    Comprehensive catalogue of drill?hole data in spreadsheet, shapefile, and Geosoft database formats. Includes XYZ locations of well heads, year drilled, type of well, operator, total depths, well path data (deviations), lithology logs, and temperature data. Plus, 13 cross?sections in Adobe Illustrator format.

  17. WELL-FORMEDNESS, CONSISTENCY AND COMPLETENESS OF GRAPHIC MODELS

    E-Print Network [OSTI]

    Zhu, Hong

    WELL-FORMEDNESS, CONSISTENCY AND COMPLETENESS OF GRAPHIC MODELS HONG ZHU Department of Computing@yahoo.com ABSTRACT This paper clarifies the notions of well-formedness, consistency and completeness of graphic languages, Well-formedness, Consistency constraints, Completeness constraints, Type systems, Formal

  18. Oil/gas separator for installation at burning wells

    DOE Patents [OSTI]

    Alonso, Carol T. (Orinda, CA); Bender, Donald A. (Dublin, CA); Bowman, Barry R. (Livermore, CA); Burnham, Alan K. (Livermore, CA); Chesnut, Dwayne A. (Pleasanton, CA); Comfort, III, William J. (Livermore, CA); Guymon, Lloyd G. (Livermore, CA); Henning, Carl D. (Livermore, CA); Pedersen, Knud B. (Livermore, CA); Sefcik, Joseph A. (Tracy, CA); Smith, Joseph A. (Livermore, CA); Strauch, Mark S. (Livermore, CA)

    1993-01-01T23:59:59.000Z

    An oil/gas separator is disclosed that can be utilized to return the burning wells in Kuwait to production. Advantageously, a crane is used to install the separator at a safe distance from the well. The gas from the well is burned off at the site, and the oil is immediately pumped into Kuwait's oil gathering system. Diverters inside the separator prevent the oil jet coming out of the well from reaching the top vents where the gas is burned. The oil falls back down, and is pumped from an annular oil catcher at the bottom of the separator, or from the concrete cellar surrounding the well.

  19. Oil/gas separator for installation at burning wells

    DOE Patents [OSTI]

    Alonso, C.T.; Bender, D.A.; Bowman, B.R.; Burnham, A.K.; Chesnut, D.A.; Comfort, W.J. III; Guymon, L.G.; Henning, C.D.; Pedersen, K.B.; Sefcik, J.A.; Smith, J.A.; Strauch, M.S.

    1993-03-09T23:59:59.000Z

    An oil/gas separator is disclosed that can be utilized to return the burning wells in Kuwait to production. Advantageously, a crane is used to install the separator at a safe distance from the well. The gas from the well is burned off at the site, and the oil is immediately pumped into Kuwait's oil gathering system. Diverters inside the separator prevent the oil jet coming out of the well from reaching the top vents where the gas is burned. The oil falls back down, and is pumped from an annular oil catcher at the bottom of the separator, or from the concrete cellar surrounding the well.

  20. Horizontal-well pilot waterflood tests shallow, abandoned field

    SciTech Connect (OSTI)

    McAlpine, J.L. (White Buffalo Petroleum Co., Tulsa, OK (US)); Joshi, S.D. (Joshi Technologies International Inc., Tulsa, OK (US))

    1991-08-05T23:59:59.000Z

    This paper reports on the suitability of using horizontal wells in a waterflood of shallow, partially depleted sands which will be tested in the Jennings field in Oklahoma. The vertical wells drilled in the Jennings field intersect several well-known formations such as Red Fork, Misner, and Bartlesville sand. Most of these formations have been produced over a number of years, and presently no wells are producing in the field. In the 1940s, 1950s, and 1960s, wells were drilled on 10-acre spacing, and the last well was plugged in 1961. The field was produced only on primary production and produced approximately 1 million bbl of oil. Because the field was not waterflooded, a large potential exists to produce from the field using secondary methods. To improve the economics for the secondary process, a combination of horizontal and vertical wells was considered.

  1. Horizontal well successfully drilled in Black Warrior basin

    SciTech Connect (OSTI)

    Butler, J.R. [Mississippi Valley Gas Co., Jackson, MS (United States); Skeen, B. [Sperry-Sun Drilling Services, Dallas, TX (United States)

    1996-07-22T23:59:59.000Z

    The first horizontal well successfully drilled and completed in the very abrasive Black Warrior basin required the use of several state-of-the-art drilling technologies and quick decision making at the well site. Mississippi Valley Gas Co.`s first horizontal well in the Goodwin natural gas storage field has a deliverability about six times that of a conventional vertical well in the same reservoir. The MVG Howard 35-4 No. 1 was drilled in 23 days during September and October 1995. The well reached 1,805 ft true vertical depth (TVD) and 3,660 ft measured depth. The horizontal section length was 1,650 ft. The well reached the target, and the economics were favorable. The paper describes the geology of the basin, Goodwin field, the decision for a horizontal well, the difficulties encountered, and evaluation of the technologies used.

  2. Well fluid isolation and sample apparatus and method

    DOE Patents [OSTI]

    Schalla, Ronald (Kennewick, WA); Smith, Ronald M. (Richland, WA); Hall, Stephen H. (Kennewick, WA); Smart, John E. (Richland, WA)

    1995-01-01T23:59:59.000Z

    The present invention specifically permits purging and/or sampling of a well but only removing, at most, about 25% of the fluid volume compared to conventional methods and, at a minimum, removing none of the fluid volume from the well. The invention is an isolation assembly that is inserted into the well. The isolation assembly is designed so that only a volume of fluid between the outside diameter of the isolation assembly and the inside diameter of the well over a fluid column height from the bottom of the well to the top of the active portion (lower annulus) is removed. A seal may be positioned above the active portion thereby sealing the well and preventing any mixing or contamination of inlet fluid with fluid above the packer. Purged well fluid is stored in a riser above the packer. Ports in the wall of the isolation assembly permit purging and sampling of the lower annulus along the height of the active portion.

  3. Description of work for 200-UP-1 characterization of monitoring wells. Revision 1

    SciTech Connect (OSTI)

    Innis, B.E.; Kelty, G.G.

    1994-03-31T23:59:59.000Z

    This description of work details the field activities associated with the drilling, soil sampling, and construction of groundwater monitoring and dual-use wells as part of the Remedial Investigation/Feasibility Study Work Plan for the 200-UP-1 Groundwater Operable Unit and will serve as a field guide for those performing the work. It will be used in conjunction with DOE-RE and Environmental Investigations and Site Characterization Manual. Groundwater wells are being constructed to characterize the vertical and horizontal extent of the Uranium and {sup 99}Tc plumes and to define aquifer properties such as hydraulic communication between aquifers and hydrostratigraphy. Some of these wells may be utilized for extraction purposes during the Interim Remedial Measures (IRM) phase anticipated at this operable unit and are being designed with a dual use in mind. These data will be used to optimize the IRM for the cleanup of these two plumes. The data will also be used with later Limited Field Investigation data to perform a Qualitative Risk Assessment for the operable unit. The locations for the proposed groundwater wells are presented. The contaminants of concern for the project are presented also.

  4. Description of work for 200-UP-1 characterization of monitoring wells

    SciTech Connect (OSTI)

    Innis, B.E.; Kelty, G.G.

    1994-02-01T23:59:59.000Z

    This description of work (DOW) details the field activities associated with the drilling, soil sampling, and construction of groundwater monitoring and dual-use wells in the 200-UP-1 Operable Unit (Tasks 2, 3, and 5 in the 200-UP-1 RI/FS Work Plan DOE/RL 1993a) and will serve as a field guide for those performing the work. It will be used in conjunction with the Remedial Investigation/Feasibility Study Work Plan for the 200-UP-1 Groundwater operable Unit (DOE-RL 1993a, [LFI]) and Site Characterization Manual (WHC 1988a). Groundwater wells are being constructed to characterize the vertical and horizontal extent of the Uranium and {sup 99}{Tc} plumes and to define aquifer properties such as hydraulic communication between aquifers and hydrostratigraphy. Some of these wells may be utilized for extraction purposes during the IRM phase anticipated at this operable unit and are being designed with a dual use in mind. These data will be used to optimize the Interim Remedial Measures (IRM) for the cleanup of these two plumes. The data will also be used with later Limited Field Investigation (LFI) data to perform a Qualitative Risk Assessment (QRA) for the operable unit. The locations for the proposed groundwater wells are presented in Figure 1. The contaminants of concern for the project are presented ih Table 1.

  5. Software-defined Radio Based Wireless Tomography: Experimental Demonstration and Verification

    SciTech Connect (OSTI)

    Bonior, Jason D [ORNL; Hu, Zhen [Tennessee Technological University; Guo, Terry N. [Tennessee Technological University; Qiu, Robert C. [Tennessee Technological University; Browning, James P. [United States Air Force Research Laboratory, Wright-Patterson Air Force Base; Wicks, Michael C. [University of Dayton Research Institute

    2015-01-01T23:59:59.000Z

    This letter presents an experimental demonstration of software-defined-radio-based wireless tomography using computer-hosted radio devices called Universal Software Radio Peripheral (USRP). This experimental brief follows our vision and previous theoretical study of wireless tomography that combines wireless communication and RF tomography to provide a novel approach to remote sensing. Automatic data acquisition is performed inside an RF anechoic chamber. Semidefinite relaxation is used for phase retrieval, and the Born iterative method is utilized for imaging the target. Experimental results are presented, validating our vision of wireless tomography.

  6. Densely defined non-closable curl on topologically one-dimensional Dirichlet metric measure spaces

    E-Print Network [OSTI]

    Michael Hinz; Alexander Teplyaev

    2015-05-31T23:59:59.000Z

    The paper deals with the exterior derivative operator defined on 1-forms on topologically one dimensional spaces with a strongly local regular Dirichlet form. It is proved that exterior derivative operator taking $1$-forms into $2$-forms is not closable if the martingale dimension is larger than one. Although the main results are applicable to general diffusions, some of the most interesting examples include the non self-similar Sierpinski carpets recently introduced by Mackay, Tyson and Wildrick. For these carpets we prove that not only the curl operator is not closable, but that its adjoint operator has a trivial domain.

  7. Methodology for Defining Gap Areas between Course-over-ground Locations

    SciTech Connect (OSTI)

    Wilson, John E.

    2013-09-30T23:59:59.000Z

    Finding all areas that lie outside some distance d from a polyline is a problem with many potential applications. This application of the Visual Sample Plan (VSP) software required finding all areas that were more than distance d from a set of existing paths (roads and trails) represented by polylines. An outer container polygon (known in VSP as a “sample area”) defines the extents of the area of interest. The term “gap area” was adopted for this project, but another useful term might be “negative coverage area.” The project required a polygon solution rather than a raster solution. The search for a general solution provided no results, so this methodology was developed

  8. Nigeria steps up action to define and increase its oil reserves

    SciTech Connect (OSTI)

    Page, N.

    1992-01-06T23:59:59.000Z

    This paper reports that within the past 18 months, the Nigerian Ministry of Petroleum Resources has moved aggressively to increase investment in known producing areas and stimulate exploration in frontier regions in order to define and expand the country's reserve base for the start of the 21st century. At industry seminars held in November and December 1991 in Houston, London, and Lagos, the Ministry in association with TGSI-Mabon Geophysical Co. reviewed the Nigerian political and economic climate, recent industry development and leasing activity, deep-water geology and exploration potential, and the probable areas' terms and conditions for a new bidding round to be announced in early 1992.

  9. Defining medium-specific condensates in QCD sum rules for $D$ and $B$ mesons

    E-Print Network [OSTI]

    T. Buchheim; T. Hilger; B. Kampfer

    2014-09-08T23:59:59.000Z

    QCD sum rules for $D$ and $B$ mesons in a strongly interacting environment require the decomposition of Gibbs averaged operators related to tensor structures. We present a procedure to decompose these operators into vacuum and medium-specific parts, thus defining plain medium-specific condensates with coefficients vanishing in vacuum. Our decomposition allows for an identification of potential elements of order parameters for chiral restoration, in particular for higher mass-dimension quark-condensates which would be masked otherwise if operators with uncontracted Lorentz indices would be linked to DIS amplitudes.

  10. A FLEXIBLE FRAMEWORK FOR WEB INTERFACES TO IMAGE DATABASES: SUPPORTING USER-DEFINED ONTOLOGIES AND LINKS TO EXTERNAL DATABASES

    E-Print Network [OSTI]

    Kammen, Daniel M.

    A FLEXIBLE FRAMEWORK FOR WEB INTERFACES TO IMAGE DATABASES: SUPPORTING USER-DEFINED ONTOLOGIES. Ontology languages tend to emphasize flexibility and expressiveness rather than simplicity. Despite this

  11. Fully Coupled Well Models for Fluid Injection and Production

    SciTech Connect (OSTI)

    White, Mark D.; Bacon, Diana H.; White, Signe K.; Zhang, Z. F.

    2013-08-05T23:59:59.000Z

    Wells are the primary engineered component of geologic sequestration systems with deep subsurface reservoirs. Wells provide a conduit for injecting greenhouse gases and producing reservoirs fluids, such as brines, natural gas, and crude oil, depending on the target reservoir. Well trajectories, well pressures, and fluid flow rates are parameters over which well engineers and operators have control during the geologic sequestration process. Current drilling practices provided well engineers flexibility in designing well trajectories and controlling screened intervals. Injection pressures and fluids can be used to purposely fracture the reservoir formation or to purposely prevent fracturing. Numerical simulation of geologic sequestration processes involves the solution of multifluid transport equations within heterogeneous geologic media. These equations that mathematically describe the flow of fluid through the reservoir formation are nonlinear in form, requiring linearization techniques to resolve. In actual geologic settings fluid exchange between a well and reservoir is a function of local pressure gradients, fluid saturations, and formation characteristics. In numerical simulators fluid exchange between a well and reservoir can be specified using a spectrum of approaches that vary from totally ignoring the reservoir conditions to fully considering reservoir conditions and well processes. Well models are a numerical simulation approach that account for local conditions and gradients in the exchange of fluids between the well and reservoir. As with the mathematical equations that describe fluid flow in the reservoir, variation in fluid properties with temperature and pressure yield nonlinearities in the mathematical equations that describe fluid flow within the well. To numerically simulate the fluid exchange between a well and reservoir the two systems of nonlinear multifluid flow equations must be resolved. The spectrum of numerical approaches for resolving these equations varies from zero coupling to full coupling. In this paper we describe a fully coupled solution approach for well model that allows for a flexible well trajectory and screened interval within a structured hexahedral computational grid. In this scheme the nonlinear well equations have been fully integrated into the Jacobian matrix for the reservoir conservation equations, minimizing the matrix bandwidth.

  12. Contamination of shallow wells in Nigeria from surface contaminant migration

    SciTech Connect (OSTI)

    Ademoroti, C.M.A. (Univ. of Benin (Nigeria))

    1987-01-01T23:59:59.000Z

    Contaminated wells, located in six south/western and western states of Nigeria, were sampled and analyzed for pollution characteristics. Results of analysis indicated migration of contaminants into the wells from places where there was a potential source. There was a significant microbiological population in the wells placed near domestic waste sites. Also, there were excessive levels of trace heavy metals in those placed near metal dumping sites. On the other hand, the contaminants were minimal in wells that were not close to polluting sources. The studies revealed that groundwater contamination occurred primarily by dumping of wastes, wrong placement of waste disposal facilities, and improper construction of wells. The groundwater sources (wells, etc.) are used when pipe-borne water facilities are inadequate.

  13. Eigenstate Localization in an Asymmetric Coupled Quantum Well Pair

    SciTech Connect (OSTI)

    Mialitsin, A.; Schmult, S.; Solov'yov, I. A.; Fluegel, B.; Mascarenhas, A.

    2012-06-01T23:59:59.000Z

    Optical pumping of a type-I/type-II coupled asymmetric quantum well pair induces a spatially separated two dimensional charge carriers plasma in the well's wide and narrow parts. Treating the two coupled wells as a single system we find that the eigenstate probability distribution localizes exclusively either in the wide or the narrow parts of the well pair. The energy of the narrow-well localized state determines the minimal excitation energy for optically pumped charge carriers separation. In a previously used design [Guliamov et al., PRB 64 035314 (2001)] this narrow well transition energy was measured to correspond to a wavelength of 646 nm. We propose modifications to the design suggested earlier with the purpose of pushing up the energy required for the optical pumping of the two-dimensional plasma into the green and blue regions of the visible spectrum.

  14. GEOFRAC: an explosives stimulation technique for a geothermal well

    SciTech Connect (OSTI)

    Mumma, D.M.; McCullough, F. Jr.; Schmidt, E.W.; Pye, D.S.; Allen, W.C.; Pyle, D.; Hanold, R.J.

    1982-01-01T23:59:59.000Z

    The first known use of explosives for stimulating a geothermal well was successfully conducted in December 1981 with a process called GEOFRAC. The 260/sup 0/C well was located at the Union Oil Company's Geysers Field in northern California. For the initial test, 364 kg of a new explosive called HITEX II was placed at a depth of 2256 meters and detonated to verify techniques. The explosive was contained in an aluminum canister to separate it from the well fluids. In the second test, 5000 kg of explosive was used representing a column length of approximately 191 meters. The explosive was detonated at a depth of 1697 meters in the same well. The results of these tests show that HITEX II can be safely emplaced and successfully detonated in a hot geothermal well without causing damage to the well bore or casing.

  15. Automated robotic equipment for ultrasonic inspection of pressurizer heater wells

    DOE Patents [OSTI]

    Nachbar, Henry D. (Ballston Lake, NY); DeRossi, Raymond S. (Amsterdam, NY); Mullins, Lawrence E. (Middle Grove, NY)

    1993-01-01T23:59:59.000Z

    A robotic device for remotely inspecting pressurizer heater wells is provided which has the advantages of quickly, precisely, and reliably acquiring data at reasonable cost while also reducing radiation exposure of an operator. The device comprises a prober assembly including a probe which enters a heater well, gathers data regarding the condition of the heater well and transmits a signal carrying that data; a mounting device for mounting the probe assembly at the opening of the heater well so that the probe can enter the heater well; a first motor mounted on the mounting device for providing movement of the probe assembly in an axial direction; and a second motor mounted on the mounting device for providing rotation of the probe assembly. This arrangement enables full inspection of the heater well to be carried out.

  16. Water coning calculations for vertical and horizontal wells 

    E-Print Network [OSTI]

    Yang, Weiping

    1990-01-01T23:59:59.000Z

    recovery of several wells coning water. Since their type curves are specific for the data they investigated, it can not serve as a general method of coning evaluation. Addington'2 developed a set of gas coning correlations for 3-D coarse grid... for predicting (1) critical coning rate, (2) breakthrough time, and (3) WOR after breakthrough in both vertical and horizontal wells. Two hand calculation methods had been developed in this study. Either of them applies to both vertical and horizontal wells...

  17. Investigation and evaluation of geopressured-geothermal wells

    SciTech Connect (OSTI)

    Hartsock, J.H.; Rodgers, J.A.

    1980-09-01T23:59:59.000Z

    Over the life of the project, 1143 wildcat wells were screened for possible use. Although many did not meet the program's requirement for sand development, a surprisingly large number were abandoned because of downhole mechanical problems. Only 94 of these wells were completed as commercial hydrocarbon producers. Five wells of opportunity were funded for testing. Of these, two were evaluated for their hydraulic energy, thermal energy, and recoverable methane, and three were abandoned because of mechanical problems. (MHR)

  18. Well correction factors for three-dimensional reservoir simulation

    E-Print Network [OSTI]

    Fjerstad, Paul Albert

    1985-01-01T23:59:59.000Z

    of Advisory Committee: Dr. W. D. Von Gonten A three-dimensional reservoir simulation model does not calculate the correct bottomhole flowing pressure, p f, for a partially penetrating well. The simulator well cell pressure must be corrected ro obtain... an accurate value for p f. Simulation model results have wf' been used in this part to develop a new inflow equation relating cell pressure to actual bottomhole flowing pressure for a partially penetrating well. Based on the new inflow equation, an equation...

  19. A molecularly defined duplication set for the X chromosome of Drosophila melanogaster

    SciTech Connect (OSTI)

    Venken, Koen J. T.; Popodi, Ellen; Holtzman, Stacy L.; Schulze, Karen L.; Park, Soo; Carlson, Joseph W.; Hoskins, Roger A.; Bellen, Hugo J.; Kaufman, Thomas C.

    2010-07-22T23:59:59.000Z

    We describe a molecularly defined duplication kit for the X chromosome of Drosophila melanogaster. A set of 408 overlapping P[acman] BAC clones was used to create small duplications (average length 88 kb) covering the 22-Mb sequenced portion of the chromosome. The BAC clones were inserted into an attP docking site on chromosome 3L using C31 integrase, allowing direct comparison of different transgenes. The insertions complement 92% of the essential and viable mutations and deletions tested, demonstrating that almost all Drosophila genes are compact and that the current annotations of the genome are reasonably accurate. Moreover, almost all genes are tolerated at twice the normal dosage. Finally, we more precisely mapped two regions at which duplications cause diplo-lethality in males. This collection comprises the first molecularly defined duplication set to cover a whole chromosome in a multicellular organism. The work presented removes a long-standing barrier to genetic analysis of the Drosophila X chromosome, will greatly facilitate functional assays of X-linked genes in vivo, and provides a model for functional analyses of entire chromosomes in other species.

  20. Development of an Improved Cement for Geothermal Wells

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

    for Geothermal Wells Principal Investigator George Trabits Trabits Group, LLC Track 2 Materials Project Officer: Eric Hass Total Project Funding: 2,154,238 April 24, 2013 This...

  1. CY2003 RCRA GROUNDWATER MONITORING WELL SUMMARY REPORT

    SciTech Connect (OSTI)

    MARTINEZ, C.R.

    2003-12-16T23:59:59.000Z

    This report describes the calendar year (CY) 2003 field activities associated with the installation of two new groundwater monitoring wells in the A-AX Waste Management Area (WMA) and four groundwater monitoring wells in WMA C in the 200 East Area of the Hanford Nuclear Reservation. All six wells were installed by Fluor Hanford Inc. (FH) for CH2M Hill Hanford Group, Inc. (CHG) in support of Draft Hanford Facility Agreement and Consent Order (Tri-Party Agreement) M-24-00 milestones and ''Resource Conservation and Recovery Act of 1976'' (RCRA) groundwater monitoring requirements. Drilling data for the six wells are summarized in Table 1.

  2. NMOCD - Form G-102 - Geothermal Resources Well Location and Acreage...

    Open Energy Info (EERE)

    Well Location and Acreage Dedication Plat Author State of New Mexico Energy and Minerals Department Published New Mexico Oil Conservation Division, 1978 DOI Not Provided...

  3. Multifunctional Corrosion-resistant Foamed Well Cement Composites

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

    Multifunctional Corrosion-resistant Foamed Well Cement Composites Project Officer: Dan KingGreg Stillman Total budget: 300 K April 24 , 2013 Principal Investigator: Dr. Toshifumi...

  4. Knowledge-based stratigraphic well-log correlation

    E-Print Network [OSTI]

    Denton, Michael A.

    1990-01-01T23:59:59.000Z

    represents the formations, and new rules for the knowledge-base that can correlate formations in reservoirs with secondary stratification. This expert system has correlated ovei' 3, 500 ft. of well-log data from three different types of rock sequences... inspirational support. TABLE OF CONTENTS Page ABSTRACT nl DEDICATION ACKNOWLEDGEMENT TABLE OF CONTENTS LIST OF TABLES x1 LIST OF FIGURES xl1 CHAPTER I ? INTRODUCTION 1. 1 Well-Logs 1. 2 Stratigraphic Well-Log Correlation . 1. 3 Well-Log Correlation...

  5. BOREHOLE PRECONDITIONING OF GEOTHERMAL WELLS FOR ENHANCED GEOTHERMAL...

    Open Energy Info (EERE)

    SYSTEM RESERVOIR DEVELOPMENT Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: BOREHOLE PRECONDITIONING OF GEOTHERMAL WELLS FOR ENHANCED...

  6. Exploratory Well At Long Valley Caldera Geothermal Area (Smith...

    Open Energy Info (EERE)

    Home Exploration Activity: Exploratory Well At Long Valley Caldera Geothermal Area (Smith & Rex, 1977) Exploration Activity Details Location Long Valley Caldera Geothermal Area...

  7. Geothermal: Sponsored by OSTI -- Chapter 6. Drilling and Well...

    Office of Scientific and Technical Information (OSTI)

    Chapter 6. Drilling and Well Construction Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About Publications Advanced Search New Hot...

  8. Fourth Novatek Hammer Field Test Department of Energy Well PM...

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

    Fourth Novatek Hammer Field Test Department of Energy Well PM-2-31 Garfield County, Colorado September, 1995 Report Prepared for Mud Hammer Development Project Partners Mobil Oil...

  9. An accounting manual for oil well servicing contractors

    E-Print Network [OSTI]

    Robert, Curtis Dean

    1949-01-01T23:59:59.000Z

    'equently advisable to drill a new well rather than recondit1on the old one. In re- cent years, however, with oil product1on being obtained from depths below 10, 000 feet? the initial cost of the well de- mands that modern servicing practices be employed to effeot... beneficial in wells along the Qulf Coast. In some fields~ the use of plastics fox the exclusion of water is helpful, %1th the use of these specialised tools and modern pro duction records and practices? the xeconditioning of oil wells k term used...

  10. Well Log Data At Valles Caldera - Redondo Geothermal Area (Shevenell...

    Open Energy Info (EERE)

    to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Log Data At Valles Caldera - Redondo Geothermal Area (Shevenell, Et Al., 1988) Exploration...

  11. wellness.umd.edu 1. Choose a balanced, energy-

    E-Print Network [OSTI]

    Gruner, Daniel S.

    sporting event 30. Play an instrument 31. Write a poem or story 32. Go ice skating at Wells Ice Rink 33

  12. Fluid Inclusion Stratigraphy: Interpretation of New Wells in...

    Open Energy Info (EERE)

    Coso Geothermal Field Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Fluid Inclusion Stratigraphy: Interpretation of New Wells in the...

  13. Surface Indicators of Geothermal Activity at Salt Wells, Nevada...

    Open Energy Info (EERE)

    Activity at Salt Wells, Nevada, USA, Including Warm Ground, Borate Deposits, and Siliceous Alteration Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference...

  14. Wells Public Utilities- Commercial & Industrial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    SMMPA develops innovative products and services to help them deliver value to customers. With help from SMMPA, Wells Public Utilities provides incentives for its commercial and industrial custome...

  15. artesian wells: Topics by E-print Network

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

    Werner 2 A new solution of transient confinedunconfined flow driven by a pumping well Xu-Sheng Wang a,*, Hongbin Zhan b Geosciences Websites Summary: undergoing...

  16. In-well vapor stripping drilling and characterization work plan

    SciTech Connect (OSTI)

    Koegler, K.J.

    1994-03-13T23:59:59.000Z

    This work plan provides the information necessary for drilling, sampling, and hydrologic testing of wells to be completed in support of a demonstration of the in-well vapor stripping system. The in-well vapor stripping system is a remediation technology designed to preferentially extract volatile organic compounds (VOCs) from contaminated groundwater by converting them to a vapor phase. Air-lift pumping is used to lift and aerate groundwater within the well. The volatiles escaping the aerated water are drawn off by a slight vacuum and treated at the surface while the water is allowed to infiltrate the vadose zone back to the watertable.

  17. Water geochemistry study of Indian Wells Valley, Inyo and Kern...

    Open Energy Info (EERE)

    Final report Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Water geochemistry study of Indian Wells Valley, Inyo and Kern Counties, California....

  18. Well Monitoring System for EGS | Department of Energy

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

    which will lower costs and increase confidence in future geothermal projects. seismicnormannwellmonitoring.pdf More Documents & Publications Well Monitoring Systems for...

  19. U.S. DOE Geopressured/Geothermal Program: Final report on well plug and abandonment operations and well site restoration, Louisiana and Texas wells

    SciTech Connect (OSTI)

    None

    1994-08-30T23:59:59.000Z

    Some of the critical operations conducted during the plugging and abandonment of the three producing wells of the U.S. DOE GEOPRESSURED/GEOTHERL PROGRAM were witnessed by D-O-R Engineering personnel. All operations witnessed by D-O-R personnel were in compliance with the respective state regulations and were conducted as per D-O-R's recommendations to the Department of Energy and their prime contractor, EG&G Idaho. It is our belief that competent cement plugs were left in all three wells. The following describes the work actually witnessed by D-O-R personnel.

  20. Model-based Lifecycle Optimization of Well Locations

    E-Print Network [OSTI]

    Van den Hof, Paul

    Model-based Lifecycle Optimization of Well Locations and Production Settings in Petroleum Reservoirs #12;#12;MODEL-BASED LIFECYCLE OPTIMIZATION OF WELL LOCATIONS AND PRODUCTION SETTINGS IN PETROLEUM System Approach Petroleum Production" (ISAPP) programme. The knowledge center is a long-term co

  1. Resonant acoustic transducer system for a well drilling string

    DOE Patents [OSTI]

    Nardi, Anthony P. (Burlington, MA)

    1981-01-01T23:59:59.000Z

    For use in transmitting acoustic waves propated along a well drilling string, a piezoelectric transducer is provided operating in the relatively low loss acoustic propagation range of the well drilling string. The efficiently coupled transmitting transducer incorporates a mass-spring-piezoelectric transmitter combination permitting a resonant operation in the desired low frequency range.

  2. Resonant acoustic transducer system for a well drilling string

    DOE Patents [OSTI]

    Kent, William H. (Westford, MA); Mitchell, Peter G. (Concord, MA)

    1981-01-01T23:59:59.000Z

    For use in transmitting acoustic waves propagated along a well drilling string, a piezoelectric transducer is provided operating in the relatively low loss acoustic propagation range of the well drilling string. The efficiently coupled transmitting transducer incorporates a mass-spring-piezoelectric transmitter combination permitting resonant operation in the desired low frequency range.

  3. Slow technology for well-being Steffi Beckhaus

    E-Print Network [OSTI]

    Beckhaus, Steffi

    Slow technology for well-being Steffi Beckhaus IAD - Technical University of Darmstadt interactiondesign@steffi.beckhaus.de ABSTRACT Slow technology is technology that actively influences our well): Miscellaneous General Terms Slow Technology SLOW TECHNOLOGY IS... Slow technology is technology that actively

  4. MEDICATION TREATMENT FOR ATTENTION DEFICIT DISORDERS UNLV STUDENT WELLNESS

    E-Print Network [OSTI]

    Hemmers, Oliver

    Jan 2010 MEDICATION TREATMENT FOR ATTENTION DEFICIT DISORDERS UNLV STUDENT WELLNESS SRWC (702) 895-3627 Due to the high potential for both abuse and possibly sudden unexpected death, UNLV Student Wellness for ADD/ADHD. You may contact the CAPS triage counselor or our care manager, Perris Kent, for an ADD

  5. KNOWLEDGE-BASED DECISION SUPPORT IN OIL WELL DRILLING

    E-Print Network [OSTI]

    Aamodt, Agnar

    for capturing and reusing experience and best practice in industrial operations5-7 . CBR as a technology has nowKNOWLEDGE-BASED DECISION SUPPORT IN OIL WELL DRILLING Combining general and case-specific knowledge of Computer and Information Science. agnar.aamodt@idi.ntnu.no Abstract: Oil well drilling is a complex process

  6. Abstract --Under a context of transmission open access, a methodology to define a common transmission trunk system

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    is defined as a unique and common system constituted by electrical lines and substations access. I INTRODUCTION Transmission is the activity dedicated to transport power from differentAbstract -- Under a context of transmission open access, a methodology to define a common

  7. DEFINING A STANDARD METRIC FOR ELECTRICITY SAVINGS Jonathan Koomey*, Hashem Akbari, Carl Blumstein, Marilyn Brown, Richard Brown,

    E-Print Network [OSTI]

    Wh/year at the meter and reduce emissions by 3 million metric tons of CO2 per year. The proposed name for this metricDEFINING A STANDARD METRIC FOR ELECTRICITY SAVINGS Jonathan Koomey*, Hashem Akbari, Carl Blumstein June 2009 Short title: Defining a standard metric for electricity savings Keywords: Electricity savings

  8. DEFINING A STANDARD METRIC FOR ELECTRICITY SAVINGS Jonathan Koomey*, Hashem Akbari, Carl Blumstein, Marilyn Brown, Richard Brown,

    E-Print Network [OSTI]

    Diamond, Richard

    Wh/year at the meter and reduce emissions by 3 million metric tons of CO2 per year. The proposed name for this metricDEFINING A STANDARD METRIC FOR ELECTRICITY SAVINGS Jonathan Koomey*, Hashem Akbari, Carl Blumstein title: Defining a standard metric for electricity savings Keywords: Electricity savings, energy

  9. Practical Methods for Locating Abandoned Wells in Populated Areas

    SciTech Connect (OSTI)

    Veloski, G.A.; Hammack, R.W.; Lynn, R.J.

    2007-09-01T23:59:59.000Z

    An estimated 12 million wells have been drilled during the 150 years of oil and gas production in the United States. Many old oil and gas fields are now populated areas where the presence of improperly plugged wells may constitute a hazard to residents. Natural gas emissions from wells have forced people from their houses and businesses and have caused explosions that injured or killed people and destroyed property. To mitigate this hazard, wells must be located and properly plugged, a task made more difficult by the presence of houses, businesses, and associated utilities. This paper describes well finding methods conducted by the National Energy Technology Laboratory (NETL) that were effective at two small towns in Wyoming and in a suburb of Pittsburgh, Pennsylvania.

  10. Analysis of Transient Pressure Tests for Olkaria Exploration Wells

    SciTech Connect (OSTI)

    Haukwa, Charles B.

    1987-01-20T23:59:59.000Z

    Analysis of transient pressure tests for Olkaria West wells shows that both infinite acting and double porosity models can be used to analyze the well behaviour and infer reservoir properties from fall-off steps of long enough duration, in wells where no significant thermal recovery occurs. The double porosity model gives better estimates of reservoir properties than the infinite acting model, for long fall-off steps in wells intercepting fractures. Semilog methods give fairly good estimates of reservoir transmissivity for the long fall-off steps but are highly inaccurate when used independently, especially for the short fall-off steps conducted in most of the wells. Double porosity models can also be used for recovery test analyses where two phase transients are not significant. 6 refs., 11 figs., 8 tabs.

  11. Testing geopressured geothermal reservoirs in existing wells. Annual report

    SciTech Connect (OSTI)

    Not Available

    1980-01-01T23:59:59.000Z

    This contract called for the acquisition and testing of Wells of Opportunity. Wells of Opportunity are located by screening published information on oil industry activity and through personal contacts with oil operators. This process resulted in recommendation of 21 candidate wells to the DOE for the WOO program. Of the 21 wells recommended, 7 were accepted. Six of these 7 were acquired for testing. Three wells have been tested, and the fourth and fifth will be tested early in 1981. Preliminary test results are briefly described and are shown in a table. The actual testing schedule and the originally proposed schedule matched very closely. Cumulative costs through November 1980 were approximately $6.5 million and compare to an estimate of $8.5 million for the same period. A graphical comparison of actual versus estimated costs is given.

  12. Helicopter Surveys for Locating Wells and Leaking Oilfield Infrastructure

    SciTech Connect (OSTI)

    Hammack, R.W.; Veloski, G.A.; Hodges, G. (Fugro Airborne Surveys)

    2006-10-01T23:59:59.000Z

    Prior to the injection of CO2 into geological formations, either for enhanced oil recovery or for CO2 sequestration, it is necessary to locate wells that perforate the target formation and are within the radius of influence for planned injection wells. Locating and plugging wells is necessary because improperly plugged well bores provide the most rapid route for CO2 escape to the surface. This paper describes the implementation and evaluation of helicopter and ground-based well detection strategies at a 100+ year old oilfield in Wyoming where a CO2 flood is planned. This project was jointly funded by the U.S. Department of Energy’s National Energy Technology Laboratory and Fugro Airborne Surveys

  13. Hydrogen atom in space with a compactified extra dimension and potential defined by Gauss' law

    E-Print Network [OSTI]

    Martin Bureš; Petr Siegl

    2014-09-30T23:59:59.000Z

    We investigate the consequences of one extra spatial dimension for the stability and energy spectrum of the non-relativistic hydrogen atom with a potential defined by Gauss' law, i.e. proportional to $1/|x|^2$. The additional spatial dimension is considered to be either infinite or curled-up in a circle of radius $R$. In both cases, the energy spectrum is bounded from below for charges smaller than the same critical value and unbounded from below otherwise. As a consequence of compactification, negative energy eigenstates appear: if $R$ is smaller than a quarter of the Bohr radius, the corresponding Hamiltonian possesses an infinite number of bound states with minimal energy extending at least to the ground state of the hydrogen atom.

  14. Single photoelectron spin detection and angular momentum transfer in a gate defined quantum dot

    E-Print Network [OSTI]

    Takafumi Fujita; Kazuhiro Morimoto; Haruki Kiyama; Giles Allison; Marcus Larsson; Arne Ludwig; Sascha R. Valentin; Andreas D. Wieck; Akira Oiwa; Seigo Tarucha

    2015-04-14T23:59:59.000Z

    Recent innovations in fabricating nanoscale confined spin systems have enabled investigation of fundamental quantum correlations between single quanta of photons and matter states. Realization of quantum state transfer from photon polarization to electron spin using gate defined quantum dots (QDs) may give evidence of preserved coherence of angular momentum basis states at the photon-spin interface. The interface would enlarge the concept of quantum information technology, in which single photogenerated electron spins are manipulated with the dots, but this remains a serious challenge. Here, we report the detection of single electron spins generated by polarized single photons via a double QD (DQD) to verify the angular momentum transfer from single photons to single electrons. Pauli spin blockade (PSB) is used to project the photoelectron spin state onto the up or down spin state. Our result promises the realization of coherent quantum state transfer and development of hybrid photon and spin quantum technology.

  15. A MDA approach for defining WS-Policy semantic non-functional properties

    E-Print Network [OSTI]

    Belouadha, Fatima-Zahra; Roudies, Ounsa

    2012-01-01T23:59:59.000Z

    A lot of works has been especially interested to the functional aspect of Web services. Nevertheless, it is necessary to describe their non-functional properties such as the security characteristics and the quality of service. The WS-Policy standard was recommended in 2007 to describe Web services policies including the non-functional properties. However, it doesn't provide any information of their meaning necessary for automatic processes. In this paper, we propose a Model Driven Architecture approach founded on W3C standards to generate WSDL language based files including semantic policies. We use a package of WSDL and WS-Policy profiles and transformations rules to generate Web services interfaces files including policies. We extend a XML schema profile according to SAWSDL standard to define semantic non-functional properties domains. This work contributes to minimize the development cost of Web services including semantic policies. Moreover, the generated services can be automatically processed in discove...

  16. Methods of defining ontologies, word disambiguation methods, computer systems, and articles of manufacture

    DOE Patents [OSTI]

    Sanfilippo, Antonio P [Richland, WA; Tratz, Stephen C [Richland, WA; Gregory, Michelle L [Richland, WA; Chappell, Alan R [Seattle, WA; Whitney, Paul D [Richland, WA; Posse, Christian [Seattle, WA; Baddeley, Robert L [Richland, WA; Hohimer, Ryan E [West Richland, WA

    2011-10-11T23:59:59.000Z

    Methods of defining ontologies, word disambiguation methods, computer systems, and articles of manufacture are described according to some aspects. In one aspect, a word disambiguation method includes accessing textual content to be disambiguated, wherein the textual content comprises a plurality of words individually comprising a plurality of word senses, for an individual word of the textual content, identifying one of the word senses of the word as indicative of the meaning of the word in the textual content, for the individual word, selecting one of a plurality of event classes of a lexical database ontology using the identified word sense of the individual word, and for the individual word, associating the selected one of the event classes with the textual content to provide disambiguation of a meaning of the individual word in the textual content.

  17. A firmware-defined digital direct-sampling NMR spectrometer for condensed matter physics

    SciTech Connect (OSTI)

    Pikulski, M., E-mail: marekp@ethz.ch; Shiroka, T.; Ott, H.-R.; Mesot, J. [Laboratorium für Festkörperphysik, ETH Hönggerberg, CH-8093 Zürich, Switzerland and Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland)

    2014-09-15T23:59:59.000Z

    We report on the design and implementation of a new digital, broad-band nuclear magnetic resonance (NMR) spectrometer suitable for probing condensed matter. The spectrometer uses direct sampling in both transmission and reception. It relies on a single, commercially-available signal processing device with a user-accessible field-programmable gate array (FPGA). Its functions are defined exclusively by the FPGA firmware and the application software. Besides allowing for fast replication, flexibility, and extensibility, our software-based solution preserves the option to reuse the components for other projects. The device operates up to 400?MHz without, and up to 800?MHz with undersampling, respectively. Digital down-conversion with ±10?MHz passband is provided on the receiver side. The system supports high repetition rates and has virtually no intrinsic dead time. We describe briefly how the spectrometer integrates into the experimental setup and present test data which demonstrates that its performance is competitive with that of conventional designs.

  18. User Defined Data in the New Analysis Model of the BaBar Experiment

    SciTech Connect (OSTI)

    De Nardo, G.

    2005-04-06T23:59:59.000Z

    The BaBar experiment has recently revised its Analysis Model. One of the key ingredient of BaBar new Analysis Model is the support of the capability to add to the Event Store user defined data, which can be the output of complex computations performed at an advanced stage of a physics analysis, and are associated to analysis objects. In order to provide flexibility and extensibility with respect to object types, template generic programming has been adopted. In this way the model is non-intrusive with respect to reconstruction and analysis objects it manages, not requiring changes in their interfaces and implementations. Technological details are hidden as much as possible to the user, providing a simple interface. In this paper we present some of the limitations of the old model and how they are addressed by the new Analysis Model.

  19. The averaging process in permeability estimation from well-test data

    SciTech Connect (OSTI)

    Oliver, D.S. (Saudi Aramco (SA))

    1990-09-01T23:59:59.000Z

    Permeability estimates from the pressure derivative or the slope of the semilog plot usually are considered to be averages of some large ill-defined reservoir volume. This paper presents results of a study of the averaging process, including identification of the region of the reservoir that influences permeability estimates, and a specification of the relative contribution of the permeability of various regions to the estimate of average permeability. The diffusion equation for the pressure response of a well situated in an infinite reservoir where permeability is an arbitrary function of position was solved for the case of small variations from a mean value. Permeability estimates from the slope of the plot of pressure vs. the logarithm of drawdown time are shown to be weighted averages of the permeabilities within an inner and outer radius of investigation.

  20. ADVANCED TECHNIQUES FOR RESERVOIR SIMULATION AND MODELING OF NONCONVENTIONAL WELLS

    SciTech Connect (OSTI)

    Louis J. Durlofsky; Khalid Aziz

    2004-08-20T23:59:59.000Z

    Nonconventional wells, which include horizontal, deviated, multilateral and ''smart'' wells, offer great potential for the efficient management of oil and gas reservoirs. These wells are able to contact larger regions of the reservoir than conventional wells and can also be used to target isolated hydrocarbon accumulations. The use of nonconventional wells instrumented with downhole inflow control devices allows for even greater flexibility in production. Because nonconventional wells can be very expensive to drill, complete and instrument, it is important to be able to optimize their deployment, which requires the accurate prediction of their performance. However, predictions of nonconventional well performance are often inaccurate. This is likely due to inadequacies in some of the reservoir engineering and reservoir simulation tools used to model and optimize nonconventional well performance. A number of new issues arise in the modeling and optimization of nonconventional wells. For example, the optimal use of downhole inflow control devices has not been addressed for practical problems. In addition, the impact of geological and engineering uncertainty (e.g., valve reliability) has not been previously considered. In order to model and optimize nonconventional wells in different settings, it is essential that the tools be implemented into a general reservoir simulator. This simulator must be sufficiently general and robust and must in addition be linked to a sophisticated well model. Our research under this five year project addressed all of the key areas indicated above. The overall project was divided into three main categories: (1) advanced reservoir simulation techniques for modeling nonconventional wells; (2) improved techniques for computing well productivity (for use in reservoir engineering calculations) and for coupling the well to the simulator (which includes the accurate calculation of well index and the modeling of multiphase flow in the wellbore); and (3) accurate approaches to account for the effects of reservoir heterogeneity and for the optimization of nonconventional well deployment. An overview of our progress in each of these main areas is as follows. A general purpose object-oriented research simulator (GPRS) was developed under this project. The GPRS code is managed using modern software management techniques and has been deployed to many companies and research institutions. The simulator includes general black-oil and compositional modeling modules. The formulation is general in that it allows for the selection of a wide variety of primary and secondary variables and accommodates varying degrees of solution implicitness. Specifically, we developed and implemented an IMPSAT procedure (implicit in pressure and saturation, explicit in all other variables) for compositional modeling as well as an adaptive implicit procedure. Both of these capabilities allow for efficiency gains through selective implicitness. The code treats cell connections through a general connection list, which allows it to accommodate both structured and unstructured grids. The GPRS code was written to be easily extendable so new modeling techniques can be readily incorporated. Along these lines, we developed a new dual porosity module compatible with the GPRS framework, as well as a new discrete fracture model applicable for fractured or faulted reservoirs. Both of these methods display substantial advantages over previous implementations. Further, we assessed the performance of different preconditioners in an attempt to improve the efficiency of the linear solver. As a result of this investigation, substantial improvements in solver performance were achieved.

  1. Method for polymer synthesis in a reaction well

    DOE Patents [OSTI]

    Brennan, Thomas M. (San Francisco, CA)

    1998-01-01T23:59:59.000Z

    A method of synthesis for building a polymer chain, oligonucleotides in particular, by sequentially adding monomer units to at least one solid support for growing and immobilizing a polymer chain thereon in a liquid reagent solution. The method includes the step of: A) depositing a liquid reagent in a reaction well (26) in contact with at least one solid support and at least one monomer unit of the polymer chain affixed to the solid support. The well (26) includes at least one orifice (74) extending into the well (26), and is of a size and dimension to form a capillary liquid seal to retain the reagent solution in the well (26) to enable polymer chain growth on the solid support. The method further includes the step of B) expelling the reagent solution from the well (26), while retaining the polymer chain therein. This is accomplished by applying a first gas pressure to the reaction well such that a pressure differential between the first gas pressure and a second gas pressure exerted on an exit (80) of the orifice (74) exceeds a predetermined amount sufficient to overcome the capillary liquid seal and expel the reagent solution from the well (26) through the orifice exit (80).

  2. Method for polymer synthesis in a reaction well

    DOE Patents [OSTI]

    Brennan, T.M.

    1998-09-29T23:59:59.000Z

    A method of synthesis is described for building a polymer chain, oligonucleotides in particular, by sequentially adding monomer units to at least one solid support for growing and immobilizing a polymer chain thereon in a liquid reagent solution. The method includes the step of: (A) depositing a liquid reagent in a reaction well in contact with at least one solid support and at least one monomer unit of the polymer chain affixed to the solid support. The well includes at least one orifice extending into the well, and is of a size and dimension to form a capillary liquid seal to retain the reagent solution in the well to enable polymer chain growth on the solid support. The method further includes the step of (B) expelling the reagent solution from the well, while retaining the polymer chain therein. This is accomplished by applying a first gas pressure to the reaction well such that a pressure differential between the first gas pressure and a second gas pressure exerted on an exit of the orifice exceeds a predetermined amount sufficient to overcome the capillary liquid seal and expel the reagent solution from the well through the orifice exit. 9 figs.

  3. Transient productivity index for numerical well test simulations

    SciTech Connect (OSTI)

    Blanc, G.; Ding, D.Y.; Ene, A. [Institut Francais du Petrole, Pau (France)] [and others

    1997-08-01T23:59:59.000Z

    The most difficult aspect of numerical simulation of well tests is the treatment of the Bottom Hole Flowing (BHF) Pressure. In full field simulations, this pressure is derived from the Well-block Pressure (WBP) using a numerical productivity index which accounts for the grid size and permeability, and for the well completion. This productivity index is calculated assuming a pseudo-steady state flow regime in the vicinity of the well and is therefore constant during the well production period. Such a pseudo-steady state assumption is no longer valid for the early time of a well test simulation as long as the pressure perturbation has not reached several grid-blocks around the well. This paper offers two different solutions to this problem: (1) The first one is based on the derivation of a Numerical Transient Productivity Index (NTPI) to be applied to Cartesian grids; (2) The second one is based on the use of a Corrected Transmissibility and Accumulation Term (CTAT) in the flow equation. The representation of the pressure behavior given by both solutions is far more accurate than the conventional one as shown by several validation examples which are presented in the following pages.

  4. Horizontal wells enhance development of thin offshore gas reservoirs

    SciTech Connect (OSTI)

    Gidman, B. [Chevron USA, Lafayette, LA (United States); Hammons, L.R.B.; Paulk, M.D. [Baker Hughes INTEQ, Lafayette, LA (United States)

    1995-03-01T23:59:59.000Z

    Horizontal wells in clastic rocks can reduce water coning problems and increase production rates as much as six-fold. They are now practical to drill for developing Gulf of Mexico gas reservoirs that may be less than 10 ft thick. In 1991, Chevron USA began exploring the feasibility of developing thin gas reservoirs in western Gulf of Mexico (GOM) fields. A critical element that needed to be addressed was the minimum target thickness that is geologically and operationally practical to drill with current horizontal well technology. Chevron`s first GOM horizontal well spudded in February 1992. The target was 31 ft of net effective gas on water in a massive Pleistocene sand at 1,700 ft TVD. Chevron spudded a second horizontal well in the same field during June 1993. This well was geosteered into a 19-ft gas sand with no immediate water contact at 1,650 ft TVD. The entire 1,000-ft horizontal section was interpreted as gas from the MWD tool response. A spinner survey was not run in this hole. At 19 MMcfd of gas, this well also proved to be a major economic success because of its low cost. After the second completion, Chevron`s next proposed well targeted a gas reservoir with a maximum thickness of only 7 ft.

  5. What to consider when choosing a well control certification program

    SciTech Connect (OSTI)

    McCauley, F.R. [F.R. McCauley and Associates, Houston, TX (United States); Schneider, M. [Baker Hughes Solutions, Houston, TX (United States)

    1997-04-01T23:59:59.000Z

    Qualified well control personnel can be extremely important to successful well operations. Losses from personnel injury, damaged equipment and interruption of product revenue can affect all parties concerned--operator, service company, rig contractor and specialty provider. With more operators becoming players in the international market and with service contractors assuming project management responsibilities, well control certification programs are becoming increasingly important. There are four primary organizations that provide recognized well control certification requirements for the industry. These organizations operate primarily in different areas of the world and under different criteria. They generally qualify personnel through different certification programs available for the following regions: IADC (International Association of Drilling Contractors)--worldwide; IWCF (International Well Control Forum)--worldwide; MMS (Minerals Management Service, US Department of Interior)--US Outer Continental Shelf; and PITS (Petroleum Industry Training Service of Canada)--Canada, federal and provincial. Through training and testing, these agencies make certain that well control personnel have sufficient understanding of the principles, practices and equipment required for well control. A summary of programs available for certification is given.

  6. Hydrologic studies in wells open through large intervals

    SciTech Connect (OSTI)

    Not Available

    1992-01-01T23:59:59.000Z

    This report describes and summarizes activities, data, and preliminary data interpretation from the INEL Oversight Program R D-1 project titled Hydrologic Studies In Wells Open Through Large Intervals.'' The project is designed to use a straddle-packer system to isolate, hydraulically test, and sample specific intervals of monitoring wells that are open (uncased, unscreened) over large intervals of the Snake River Plain aquifer. The objectives of the project are to determine and compare vertical variations in water quality and aquifer properties that have previously only been determined in an integrated fashion over the entire thickness of the open interval of the observation wells.

  7. Completion report for well ER-3-2

    SciTech Connect (OSTI)

    NONE

    1995-12-01T23:59:59.000Z

    Well ER-3-2 was drilled for the U.S. Department of Energy, Nevada Operations Office (DOE/NV), in support of the Nevada Environmental Restoration Project (NV ERP) at the Nevada Test Site. IT Corporation (IT) was the principal environmental contractor for the project. The roles and responsibilities of IT and other contractors involved in the project are described in the Raytheon Services Nevada (RSN) Drilling Program and the Underground Test Area Operable Unit Project Management Plan. The well will become part of the Underground Test Area (UGTA) monitoring well network.

  8. Integrated services help drill horizontal well ahead of schedule

    SciTech Connect (OSTI)

    Rizk, G. (Baker Hughes Inteq, Houston, TX (United States)); Clough, M. (Baker Hughes Inteq, Aberdeen (United Kingdom))

    1994-03-14T23:59:59.000Z

    Integrated services and incentive contracts helped deliver an onshore horizontal gas well ahead of schedule. Elf Petroland BV's Harlingen 8 well in Holland was drilled and completed in 26 days, instead of the 33 days planned. Incentive bonuses were awarded, and the gas well began production early. Elf Petroland used one supplier to coordinate service operations and make rig site operations more efficient. The streamlined organization on site improved communication and simplified administration and logistics. Rig site problems were addressed quickly, and solutions implemented effectively because of the integrated-services structure. The paper discusses the organizational plan and how it was carried out.

  9. Deep Well #4 Backup Power Systems Project Closeout Report

    SciTech Connect (OSTI)

    Jeremy Westwood

    2010-04-01T23:59:59.000Z

    The project scope was to install a diesel generated power source to deep well 4 in addition to the existing commercial power source. The diesel power source and its fuel supply system shall be seismically qualified to withstand a Performance Category 4 (PC-4) seismic event. This diesel power source will permit the deep well to operate during a loss of commercial power. System design will incorporate the ability to select and transfer power between the new diesel power source and commercial power sources for the the deep well motor and TRA-672 building loads.

  10. Galilean symmetry in a noncommutative gravitational quantum well

    SciTech Connect (OSTI)

    Saha, Anirban [Department of Physics and Astrophysics, West Bengal State University, Barasat, West Bengal (India)

    2010-06-15T23:59:59.000Z

    A thorough analysis of Galilean symmetries for the gravitational well problem on a noncommutative plane is presented. A complete closure of the one-parameter centrally extended Galilean algebra is realized for the model. This implies that the field theoretic model constructed to describe noncommutative gravitational quantum well in [A. Saha, Eur. Phys. J. C 51, 199 (2007).] is indeed independent of the coordinate choice. Hence the energy spectrum predicted by the model can be associated with the experimental results to establish the upper bound on a time-space noncommutative parameter. Interestingly, noncommutativity is shown to increase the gravitational pull on the neutron trapped in the gravitational well.

  11. Application of horizontal wells in steeply dipping reservoirs 

    E-Print Network [OSTI]

    Lopez Navarro, Jose David

    1995-01-01T23:59:59.000Z

    A three-dimensional reservoir simulation study is performed to evaluate the impact of horizontal well applications on oil recovery from steeply dipping reservoirs. The Provincia field, located in Colombia, provided the ...

  12. Well Productivity Enhancement of High Temperature Heterogeneous Carbonate Reservoirs

    E-Print Network [OSTI]

    Wang, Guanqun

    2014-05-08T23:59:59.000Z

    Acidizing is one of the most popular techniques for well productivity enhancement during oil and gas production. However, the treatment method is not very effective when the wellbore penetrates through multiple layers of heterogeneous reservoirs...

  13. A Diffusion Study of the Federally Mandated School Wellness Policy

    E-Print Network [OSTI]

    Harriger, Dinah Jane

    2012-10-19T23:59:59.000Z

    Using Diffusion of Innovations (DOI) in Organizations as a theoretical framework, this dissertation analyzed the diffusion process of the federally mandated School Wellness Policy (SWP) in three separate studies. Beginning with a content analysis...

  14. Water Wells and Drilled or Mined Shafts (Texas)

    Broader source: Energy.gov [DOE]

    The drilling, excavation, and construction of a water well or mine shaft requires a permit from the Texas Commission on Environmental Quality (previously known as the Texas Natural Resource...

  15. Midcontinent well operators learn advantages of coiled-tubing techniques

    SciTech Connect (OSTI)

    Lyle, D.

    1995-07-01T23:59:59.000Z

    From well cleanup to velocity strings to squeeze jobs, more Midcontinent operators are adding coiled-tubing methods to their oilfield techniques. The advantages of these techniques are discussed.

  16. Data Bias in Rate Transient Analysis of Shale Gas Wells

    E-Print Network [OSTI]

    Agnia, Ammar Khalifa Mohammed

    2012-07-16T23:59:59.000Z

    functions involve rate as essential constituent, the superposition time is affected greatly with rate issues. Production data of shale gas wells are usually subjected to operating issues that yield noise and outliers. Whenever the rate data is noisy...

  17. Salt Wells Geothermal Exploratory Drilling Program EA(DOI-BLM...

    Open Energy Info (EERE)

    Drilling Program EA (DOI-BLM-NV-C010-2009-0006-EA) Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Salt Wells Geothermal Exploratory Drilling Program...

  18. Observation Wells At Fenton Hill HDR Geothermal Area (Shevenell...

    Open Energy Info (EERE)

    Basis Geophone emplacement holes PC-1 and PC-2 were drilled at Fenton Hill by Maness Drilling Company of Farmington, NM for Los Alamos National Laboratory in 1984. These wells...

  19. A Modest, but Semantically Well Founded, Inheritance Reasoner Fahiem Bacchus

    E-Print Network [OSTI]

    Bacchus, Fahiem

    A Modest, but Semantically Well Founded, Inheritance Reasoner Fahiem Bacchus Department of Computer Science University of Waterloo Waterloo, Ontario, Canada N2L{3G1 Abstract A modest exception allowing

  20. The Bureau of Land Management's Well Information System (WIS...

    Open Energy Info (EERE)

    Bureau of Land Management's Well Information System (WIS) How-To Guide Jump to: navigation, search OpenEI Reference LibraryAdd to library PermittingRegulatory Guidance - Guide...

  1. U.S. Geothermal Completes Second Successful Production Well at...

    Open Energy Info (EERE)

    Completes Second Successful Production Well at Neal Hot Springs Project Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: U.S. Geothermal Completes Second...

  2. Acoustic measurement of the Deepwater Horizon Macondo well flow rate

    E-Print Network [OSTI]

    Camilli, Richard

    On May 31, 2010, a direct acoustic measurement method was used to quantify fluid leakage rate from the Deepwater Horizon Macondo well prior to removal of its broken riser. This method utilized an acoustic imaging sonar and ...

  3. Development Wells At Long Valley Caldera Geothermal Area (Suemnicht...

    Open Energy Info (EERE)

    Diablo field between 1993 and 1995 prompted the construction of the Basalt Canyon Pipeline later in 2005 to support the MP-I plant with additional fluids from wells 57-22 and...

  4. Simulation studies of waterflood performance with horizontal wells

    E-Print Network [OSTI]

    Ferreira, Horacio

    1995-01-01T23:59:59.000Z

    Two-and three-dimensional simulation studies have been carried out to evaluate waterflood oil recovery in a 40-acre 5-spot pattern using horizontal and vertical well systems. The three-dimensional simulation results indicate that the parameters...

  5. Washington State Department of Ecology: Replacement Wells Requiring...

    Open Energy Info (EERE)

    Ecology: Replacement Wells Requiring a Water Right Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: Washington State Department of...

  6. U.S. Geothermal Announces Successful Completion of First Well...

    Open Energy Info (EERE)

    Geothermal Announces Successful Completion of First Well at Neal Hot Springs Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: U.S. Geothermal Announces...

  7. Well casing-based geophysical sensor apparatus, system and method

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA)

    2010-03-09T23:59:59.000Z

    A geophysical sensor apparatus, system, and method for use in, for example, oil well operations, and in particular using a network of sensors emplaced along and outside oil well casings to monitor critical parameters in an oil reservoir and provide geophysical data remote from the wells. Centralizers are affixed to the well casings and the sensors are located in the protective spheres afforded by the centralizers to keep from being damaged during casing emplacement. In this manner, geophysical data may be detected of a sub-surface volume, e.g. an oil reservoir, and transmitted for analysis. Preferably, data from multiple sensor types, such as ERT and seismic data are combined to provide real time knowledge of the reservoir and processes such as primary and secondary oil recovery.

  8. Catalytic destruction of groundwater contaminants in reactive extraction wells

    DOE Patents [OSTI]

    McNab, Jr., Walt W. (Concord, CA); Reinhard, Martin (Stanford, CA)

    2002-01-01T23:59:59.000Z

    A system for remediating groundwater contaminated with halogenated solvents, certain metals and other inorganic species based on catalytic reduction reactions within reactive well bores. The groundwater treatment uses dissolved hydrogen as a reducing agent in the presence of a metal catalyst, such a palladium, to reduce halogenated solvents (as well as other substituted organic compounds) to harmless species (e.g., ethane or methane) and immobilize certain metals to low valence states. The reactive wells function by removing water from a contaminated water-bearing zone, treating contaminants with a well bore using catalytic reduction, and then reinjecting the treated effluent into an adjacent water-bearing zone. This system offers the advantages of a compact design with a minimal surface footprint (surface facilities) and the destruction of a broad suite of contaminants without generating secondary waste streams.

  9. Electrode wells for powerline-frequency electrical heating of soils

    DOE Patents [OSTI]

    Buettner, H.M.; Daily, W.D.; Aines, R.D.; Newmark, R.L.; Ramirez, A.L.; Siegel, W.H.

    1999-05-25T23:59:59.000Z

    An electrode well is described for use in powerline-frequency heating of soils for decontamination of the soil. Heating of soils enables the removal of volatile organic compounds from soil when utilized in combination with vacuum extraction. A preferred embodiment of the electrode well utilizes a mild steel pipe as the current-carrying conductor to at least one stainless steel electrode surrounded by a conductive backfill material, preferably graphite or steel shot. A covering is also provided for electrically insulating the current-carrying pipe. One of the electrode wells is utilized with an extraction well which is under subatmospheric pressure to withdraw the volatile material, such as gasoline and trichloroethylene (TCE) as it is heated. 4 figs.

  10. Electrode wells for powerline-frequency electrical heating of soils

    DOE Patents [OSTI]

    Buettner, Harley M. (Livermore, CA); Daily, William D. (Livermore, CA); Aines, Roger D. (Livermore, CA); Newmark, Robin L. (Livermore, CA); Ramirez, Abelardo L. (Pleasanton, CA); Siegel, William H. (Livermore, CA)

    1999-01-01T23:59:59.000Z

    An electrode well for use in powerline-frequency heating of soils for decontamination of the soil. Heating of soils enables the removal of volatile organic compounds from soil when utilized in combination with vacuum extraction. A preferred embodiment of the electrode well utilizes a mild steel pipe as the current-carrying conductor to at least one stainless steel electrode surrounded by a conductive backfill material, preferably graphite or steel shot. A covering is also provided for electrically insulating the current-carrying pipe. One of the electrode wells is utilized with an extraction well which is under subatmospheric pressure to withdraw the volatile material, such as gasoline and trichioroethylene (TCE) as it is heated.

  11. Seismic Signal Processing for Single Well Imaging Applications 

    E-Print Network [OSTI]

    Walsh, Brendan

    2007-01-01T23:59:59.000Z

    This thesis focuses on the concept of Single Well Imaging (SWI) in which a seismic source and receivers are deployed in a borehole to investigate the surrounding geology. The Uniwell project (1997-1999) was the first ...

  12. Chemistry of spring and well waters on Kilauea Volcano, Hawaii...

    Open Energy Info (EERE)

    the chemistry of dilute meteoric water, mixtures with sea water,and thermal water. Data for well and spring samples of non-thermal water indicate that mixing with sea water...

  13. Predicting horizontal well performance in solution-gas drive reservoirs

    E-Print Network [OSTI]

    Plahn, Sheldon Von

    1986-01-01T23:59:59.000Z

    of 48 reservoir simulation runs Tl". e simulation runs encompassed a wide rar ge of PVT properties, relative perrnieability characteristics, roc} properties, and well configui ations These type curves can be used to estimate future production..., and formation thickness to drainage radius were constants of 500 and 0. 067 respectively Landrum et al, presented a diagram which could be used to deter mine the ratio of pi oductivities between horizontal and vei tical wells for the specific conditions mer...

  14. Technical, economic and risk analysis of multilateral wells

    E-Print Network [OSTI]

    Arcos Rueda, Dulce Maria

    2009-05-15T23:59:59.000Z

    TECHNICAL, ECONOMIC AND RISK ANALYSIS OF MULTILATERAL WELLS A Thesis by DULCE MARIA ARCOS RUEDA 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 2008 Major Subject: Petroleum Engineering TECHNICAL, ECONOMIC AND RISK ANALYSIS OF MULTILATERAL WELLS A Thesis by DULCE MARIA ARCOS RUEDA Submitted to the Office of Graduate Studies of Texas A...

  15. Corrosion mitigation--a critical facet of well completion design

    SciTech Connect (OSTI)

    Bradburn, J.B.; Kalra, S.K.

    1982-09-01T23:59:59.000Z

    The successful completion and production of deep hot corrosive wells can be accomplished by the development of a corrosion mitigation program during the initial stages of the drilling and completion phases. The mitigation programs that have proven themselves to be safe, reliable and effective address three critical areas: tubing selection, corrosion treatment method, and completion design. These three areas when properly studied and evaluated result in a successful corrosion mitigation program and a well with a low workover frequency.

  16. Hydrodynamic analogy of production decline for Devonian shale wells

    SciTech Connect (OSTI)

    Pulle, C.V.

    1982-01-01T23:59:59.000Z

    Several studies on production decline curves have shown that an exponential or hyperbolic curve adequately fits production decline data for Devonian shale wells. Attempts to characterize the production decline based on open flows, rock pressures, and specific shale production mechanisms have also been made. This paper seeks to provide a genesis of the decline curves with the use of a simple hydrodynamic analogy. Some physical factors critical to well productivity are also examined. 4 refs.

  17. Regulated water production to control water coning in oil wells

    E-Print Network [OSTI]

    Sim?ha, I?s?vara

    1975-01-01T23:59:59.000Z

    REGULATED WATER PRODUCTION TO CONTROL WATER CONING IN OIL WELLS A Thesis by ISHWAR SINGH Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May 1975 Major... Subject: Petroleum Engineering REGULATED WATER PRODUCTION TO CONTROL WATER CONING IN OIL WELLS A Thesis by ISHWAR SINGH Approved as to style and content by (Chairman of Committee) (Membe ) (Head of Departmen lVlemb ) May 1975 ( I ABST RACT...

  18. Fluid-Rock Characterization and Interactions in NMR Well Logging

    SciTech Connect (OSTI)

    Hirasaki, George J.; Mohanty, Kishore K.

    2003-02-10T23:59:59.000Z

    The objective of this project was to characterize the fluid properties and fluid-rock interactions which are needed for formation evaluation by NMR well logging. NMR well logging is finding wide use in formation evaluation. The formation parameters commonly estimated were porosity, permeability, and capillary bound water. Special cases include estimation of oil viscosity, residual oil saturation, location of oil/water contact, and interpretation on whether the hydrocarbon is oil or gas.

  19. Fluid-Rock Characterization and Interactions in NMR Well Logging

    SciTech Connect (OSTI)

    Hirasaki, George J.; Mohanty, Kishore K.

    2003-02-10T23:59:59.000Z

    The objective of this project was to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. The advances made in the understanding of NMR fluid properties are summarized in a chapter written for an AAPG book on NMR well logging. This includes live oils, viscous oils, natural gas mixtures, and the relation between relaxation time and diffusivity.

  20. Completion Report for Well ER-EC-5

    SciTech Connect (OSTI)

    Bechtel Nevada

    2004-10-01T23:59:59.000Z

    Well ER-EC-5 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. This well was drilled in the summer of 1999 as part of the U.S. Department of Energy's hydrogeologic investigation program in the Western Pahute Mesa - Oasis Valley region just west of the Nevada Test Site. A 44.5-centimeter surface hole was drilled and cased off to a depth of 342.6 meters below ground surface. The borehole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 762.0 meters. One completion string with three isolated slotted intervals was installed in the well. A preliminary composite, static water level was measured at the depth of 309.9 meters, 40 days after installation of the completion string. Detailed lithologic descriptions with stratigraphic assignments are included in the report. These are based on composite drill cuttings collected every 3 meters, and 18 sidewall samples taken at various depths below 349.6 meters, supplemented by geophysical log data and results from detailed chemical and mineralogical analyses of rock samples. The well penetrated Tertiary-age tuffs of the Thirsty Canyon Group, caldera moat-filling sedimentary deposits, lava of the Beatty Wash Formation, and landslide breccia and tuffs of the Timber Mountain Group. The well reached total depth in welded ashflow tuff of the Ammonia Tanks Tuff after penetrating 440.1 meters of this unit, which is also the main water-producing unit in the well. The geologic interpretation of data from this well constrains the western margin of the Ammonia Tanks caldera to the west of the well location.

  1. Kick circulation analysis for extended reach and horizontal wells

    E-Print Network [OSTI]

    Long, Maximilian Mark

    2005-02-17T23:59:59.000Z

    KICK CIRCULATION ANALYSIS FOR EXTENDED-REACH AND HORIZONTAL WELLS A Thesis by MAXIMILIAN M. LONG 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 2004 Major Subject: Petroleum Engineering KICK CIRCULATION ANALYSIS FOR EXTENDED-REACH AND HORIZONTAL WELLS A Thesis by MAXIMILIAN M. LONG Submitted...

  2. PrimeEnergy/DOE/GRI slant well. Final report

    SciTech Connect (OSTI)

    Drimal, C.E.; Muncey, G.; Carden, R.

    1991-12-01T23:59:59.000Z

    This report presents final results of the Sterling Boggs 1240 slant well. Objectives of the project were (1) to test the potential for improved recovery efficiency in a fractured Devonian Shale reservoir from a directionally drilled well, (2) to perform detailed tests of reservoir properties and completion methods, and (3) to provide technology to industry which may ultimately improve the economics of drilling in the Devonian Shale and thereby stimulate development of its resources.

  3. An assessment of the mechanical stability of wells offshore Nigeria

    SciTech Connect (OSTI)

    Lowrey, J.P.; Ottesen, S.

    1995-03-01T23:59:59.000Z

    In 1991 lost time due to stuck pipe related drilling problems accounted for approximately 18% of total drilling time in Mobil Producing Nigeria Ultd.`s (MPN) offshore operations. The primary cause of stuck pipe was identified as mechanical wellbore instability. This paper presents an assessment of the mechanical stability of MPN`s wells offshore Nigeria. The objectives of the study were to: (1) determine the magnitude of the in-situ principal stresses and material properties of the troublesome Intra-Biafra and Qua Iboe shale sequences; (2) quantify the drilling fluid densities required to drill mechanically stable wells through these formations; (3) review and recommend well planning and operational parameters which aid in minimizing wellbore stability-related drilling problems. The well-bore stability assessment was carried out with the aid of a 3-dimensional wellbore stability model using field derived data from the study area to corroborate the results. The collection and analysis of drilling data (borehole geometry and density logs, pore pressure, leak-off tests, local geology and other relevant well records) to determine the magnitude of the in-situ principal stresses, together with compressive strength tests on formation cores are discussed. Minimum safe drilling fluid densities to promote wellbore stability as a function of well geometry and depth are presented for the most troublesome shales drilled in the study area. Implementation of the results reduced wellbore stability related problems and associated trouble time to less than 5% in 1992.

  4. Geopressured-geothermal well report. Volume I. Drilling and completion

    SciTech Connect (OSTI)

    Not Available

    1982-01-01T23:59:59.000Z

    Gladys McCall site activities are covered through the completion of the test well and salt water disposal well. The test well was drilled to a total depth of 16,510 feet, then plugged back to 15,831 feet. Three 4'' diameter diamond cores were taken for analysis. An existing well on site, the Getty-Butts Gladys McCall No. 1, was reentered and completed to a depth of 3514 feet as a salt water disposal well. The geologic interpretation of the Gladys McCall site indicated target sands for testing at 15,080 feet through 15, 831 feet. Reservoir fluid temperature at this depth is estimated to be approximately 313/sup 0/F and pressure is estimated to be +-12,800 psi. The preliminary reservoir volume estimate is 3.6 billion barrels of brine. The design wells program includes environmental monitoring of the Gladys McCall site by Louisiana State University. Field stations are set up to monitor surface and ground water quality, subsidence, land loss and shoreline erosion, and seismicity. As of December 31, 1981 the study shows no significant impact on the environment by site operations.

  5. Approaches to defining a planetary boundary for biodiversity Georgina M. Mace a,1,

    E-Print Network [OSTI]

    extinction rate and species richness are weak metrics for this purpose, and they do not scale well from local current rates of extinction put the Earth system furthest outside the safe operating space. Here we review the evidence to support a boundary based on extinction rates and identify weaknesses with this metric and its

  6. Mesenchymal Stem Cells Retain Their Defining Stem Cell Characteristics After Exposure to Ionizing Radiation

    SciTech Connect (OSTI)

    Nicolay, Nils H., E-mail: n.nicolay@dkfz.de [Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg (Germany); Department of Molecular and Radiation Oncology, German Cancer Research Center, Heidelberg (Germany); Sommer, Eva; Lopez, Ramon; Wirkner, Ute [Department of Molecular and Radiation Oncology, German Cancer Research Center, Heidelberg (Germany); Trinh, Thuy [Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg (Germany); Department of Molecular and Radiation Oncology, German Cancer Research Center, Heidelberg (Germany); Sisombath, Sonevisay [Department of Molecular and Radiation Oncology, German Cancer Research Center, Heidelberg (Germany); Debus, Jürgen [Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg (Germany); Ho, Anthony D.; Saffrich, Rainer [Department of Hematology and Oncology, Heidelberg University Hospital, Heidelberg (Germany); Huber, Peter E. [Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg (Germany); Department of Molecular and Radiation Oncology, German Cancer Research Center, Heidelberg (Germany)

    2013-12-01T23:59:59.000Z

    Purpose: Mesenchymal stem cells (MSCs) have the ability to migrate to lesion sites and undergo differentiation into functional tissues. Although this function may be important for tissue regeneration after radiation therapy, the influence of ionizing radiation (IR) on cellular survival and the functional aspects of differentiation and stem cell characteristics of MSCs have remained largely unknown. Methods and Materials: Radiation sensitivity of human primary MSCs from healthy volunteers and primary human fibroblast cells was examined, and cellular morphology, cell cycle effects, apoptosis, and differentiation potential after exposure to IR were assessed. Stem cell gene expression patterns after exposure to IR were studied using gene arrays. Results: MSCs were not more radiosensitive than human primary fibroblasts, whereas there were considerable differences regarding radiation sensitivity within individual MSCs. Cellular morphology, cytoskeletal architecture, and cell motility were not markedly altered by IR. Even after high radiation doses up to 10 Gy, MSCs maintained their differentiation potential. Compared to primary fibroblast cells, MSCs did not show an increase in irradiation-induced apoptosis. Gene expression analyses revealed an upregulation of various genes involved in DNA damage response and DNA repair, but expression of established MSC surface markers appeared only marginally influenced by IR. Conclusions: These data suggest that human MSCs are not more radiosensitive than differentiated primary fibroblasts. In addition, upon photon irradiation, MSCs were able to retain their defining stem cell characteristics both on a functional level and regarding stem cell marker expression.

  7. Defining window-boundaries for genomic analyses using smoothing spline techniques

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

    Beissinger, Timothy M; Rosa, Guilherme JM; Kaeppler, Shawn M; Gianola, Daniel; de Leon, Natalia

    2015-12-01T23:59:59.000Z

    High-density genomic data is often analyzed by combining information over windows of adjacent markers. Interpretation of data grouped in windows versus at individual locations may increase statistical power, simplify computation, reduce sampling noise, and reduce the total number of tests performed. However, use of adjacent marker information can result in over- or under-smoothing, undesirable window boundary specifications, or highly correlated test statistics. We introduce a method for defining windows based on statistically guided breakpoints in the data, as a foundation for the analysis of multiple adjacent data points. This method involves first fitting a cubic smoothing spline to the data and then identifying the inflection points of the fitted spline, which serve as the boundaries of adjacent windows. This technique does not require prior knowledge of linkage disequilibrium, and therefore can be applied to data collected from individual or pooled sequencing experiments. Moreover, in contrast to existing methods, an arbitrary choice of window size is not necessary, since these are determined empirically and allowed to vary along the genome.

  8. System Energy Assessment (SEA), Defining a Standard Measure of EROI for Energy Businesses as Whole Systems

    E-Print Network [OSTI]

    Henshaw, Philip F; Zarnikau, Jay

    2011-01-01T23:59:59.000Z

    A more objective method for measuring the energy needs of businesses, System Energy Assessment (SEA), identifies the natural boundaries of businesses as self-managing net-energy systems, of controlled and self-managing parts. The method is demonstrated using a model Wind Farm case study, and applied to defining a true physical measure of its energy productivity for society (EROI-S), the global ratio of energy produced to energy cost. The traceable needs of business technology are combined with assignable energy needs for all other operating services. That serves to correct a large natural gap in energy use information. Current methods count traceable energy receipts for technology use. Self-managing services employed by businesses outsource their own energy needs to operate, and leave no records to trace. Those uncounted energy demands are often 80% of the total embodied energy of business end products. The scale of this "dark energy" was discovered from differing global accounts, and corrected so the average...

  9. USING CFD TO ANALYZE NUCLEAR SYSTEMS BEHAVIOR: DEFINING THE VALIDATION REQUIREMENTS

    SciTech Connect (OSTI)

    Richard Schultz

    2012-09-01T23:59:59.000Z

    A recommended protocol to formulate numeric tool specifications and validation needs in concert with practices accepted by regulatory agencies for advanced reactors is described. The protocol is based on the plant type and perceived transient and accident envelopes that translates to boundary conditions for a process that gives the: (a) key phenomena and figures-of-merit which must be analyzed to ensure that the advanced plant can be licensed, (b) specification of the numeric tool capabilities necessary to perform the required analyses—including bounding calculational uncertainties, and (c) specification of the validation matrices and experiments--including the desired validation data. The result of applying the process enables a complete program to be defined, including costs, for creating and benchmarking transient and accident analysis methods for advanced reactors. By following a process that is in concert with regulatory agency licensing requirements from the start to finish, based on historical acceptance of past licensing submittals, the methods derived and validated have a high probability of regulatory agency acceptance.

  10. Corrosion mitigation-A critical facet of well completion design

    SciTech Connect (OSTI)

    Bradburn, J.B.; Karla, S.K.

    1983-09-01T23:59:59.000Z

    Successful completion and production of deep hot corrosive wells can be accomplished by the development of a corrosion mitigation program during the initial stages of the drilling and completion phases. The mitigation programs that have proved safe, reliable, and effective address three critical areas: tubing selection, corrosion treatment method, and completion design. These three areas when properly studied and evaluated result in a successful corrosion mitigation program and a well with a low workover frequency. The development of an effective well completion program in a corrosive well requires input from the drilling, completion, and corrosion engineers. Completion design, tubing selection, and the corrosion treatment method are all critical facets in the economical production of deep hot wells that contain CO/sub 2/ and/or H/sub 2/S in the produced gas. A completion design that limits the application of a corrosion inhibitor could reduce its effectiveness to less than 50%. Industry surveys and field results suggest that the use of low-alloy carbon steels in conjunction with a continuous corrosion inhibitor injection system can effectively and economically control the rate of the corrosion attack. Also evident are the potential problems that can arise if a corrosion mitigation program is designed to rely entirely on the corrosion resistance qualities of an activepassive metal alloy such as stainless steels.

  11. Completion Report for Well ER-2-1

    SciTech Connect (OSTI)

    Bechtel Nevada

    2004-10-01T23:59:59.000Z

    Well ER-2-1 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (formerly Nevada Operations Office), in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in February and March of 2003, as part of a hydrogeologic investigation program for the Yucca Flat/Climax Mine Corrective Action Unit in the northeastern portion of the Nevada Test Site. Well ER-2-1 was drilled as part of the Yucca Flat Corrective Action Unit Phase I drilling initiative. The well is located in north central Yucca Flat within Area 2 of the Nevada Test Site, and provided information regarding the radiological and physical environment near underground nuclear tests conducted in a saturated volcanic aquifer setting. Detailed lithologic descriptions with stratigraphic assignments are included in this report. These are based on composite drill cuttings collected every 3 meters and 83 sidewall samples taken at various depths between 113.7 and 754.4 meters, supplemented by geophysical log data. Detailed petrographic, chemical, and mineralogical studies of rock samples were conducted on 27 samples of drill cuttings. The well was collared in tuffaceous alluvium, and penetrated Tertiary-age tuffs of the Timber Mountain and Paintbrush Groups, Calico Hills and Wahmonie Formations, Crater Flat Group, Grouse Canyon Formation, before reaching total depth in the Tunnel Bed Formation.

  12. User's manual for geophysical well-logging software programs

    SciTech Connect (OSTI)

    Petrie, G.M.; Gibson, D.; Blair, S.C.

    1983-02-01T23:59:59.000Z

    Since 1958 the Ground-Water Surveillance Program for the Hanford Site has made geophysical logging measurements in most of the 800 wells and deep boreholes that have been drilled on the Hanford Site. In 1980 the Pacific Northwest Laboratory (PNL), which conducts the Ground-Water Surveillance Program, began forming a computerized data base for storing and retrieving geophysical well log data and developing software for quantitative analysis of the well log data. This report, designed to serve as a user's guide, documents the data base system that handles the well log data. Two programs, DIGLOG1 and LOGIT, are used to manipulate the data. The program DIGLOG1 translates analog paper strip charts into digital format; the program LOGIT is a general utility program that edits, displays, checks, stores, writes, and deletes sets of well log data. These two programs do not provide sophisticated display and analytical capabilities; rather, they provide programs that give the user easy access to powerful standard analytical software.

  13. Improved oil recovery using horizontal wells at Elk Hills, California

    SciTech Connect (OSTI)

    Gangle, F.J.; Schultz, K.L.; McJannet, G.S.; Ezekwe, N.

    1995-03-01T23:59:59.000Z

    Eight horizontal wells have been drilled and completed in a steeply dipping Stevens sand reservoir in the Elk Hills field, Kern County, California. The subject reservoir, called the Stevens 26R, is a turbidite channel sand deposit one mile wide, three miles long, and one mile deep. Formation beds have a gross thickness up to 1,500 feet and dips as high as 60 degrees on the flanks. The original oil column of 1,810 feet has been pulled down to 200 feet by continual production since 1976. The reservoir management operating strategy has been full pressure maintenance by crestal gas injection since 1976. The steep dip of the formation makes gravity drainage the dominant drive mechanism. Additionally, improved recovery is coming from cycling dry gas through the large secondary gas cap region. The prudent placement of the horizontal wells above the oil/water contact promises to improve oil recovery and extend the operating life of the reservoir. Field results are given to compare the performance of the horizontal wells with the conventional wells. The horizontal wells produce at higher rates, lower draw downs, and lower gas/oil ratio which will extend the life of the project and result in higher recovery.

  14. Flow monitoring and control system for injection wells

    DOE Patents [OSTI]

    Corey, John C. (212 Lakeside Dr., Aiken, SC 29803)

    1993-01-01T23:59:59.000Z

    A system for monitoring and controlling the injection rate of fluid by an injection well of an in-situ remediation system for treating a contaminated groundwater plume. The well is fitted with a gated insert, substantially coaxial with the injection well. A plurality of openings, some or all of which are equipped with fluid flow sensors and gates, are spaced along the insert. The gates and sensors are connected to a surface controller. The insert may extend throughout part of, or substantially the entire length of the injection well. Alternatively, the insert may comprise one or more movable modules which can be positioned wherever desired along the well. The gates are opened part-way at the start of treatment. The sensors monitor and display the flow rate of fluid passing through each opening on a controller. As treatment continues, the gates are opened to increase flow in regions of lesser flow, and closed to decrease flow in regions of greater flow, thereby approximately equalizing the amount of fluid reaching each part of the plume.

  15. Flow monitoring and control system for injection wells

    DOE Patents [OSTI]

    Corey, J.C.

    1993-02-16T23:59:59.000Z

    A system for monitoring and controlling the injection rate of fluid by an injection well of an in-situ remediation system for treating a contaminated groundwater plume. The well is fitted with a gated insert, substantially coaxial with the injection well. A plurality of openings, some or all of which are equipped with fluid flow sensors and gates, are spaced along the insert. The gates and sensors are connected to a surface controller. The insert may extend throughout part of, or substantially the entire length of the injection well. Alternatively, the insert may comprise one or more movable modules which can be positioned wherever desired along the well. The gates are opened part-way at the start of treatment. The sensors monitor and display the flow rate of fluid passing through each opening on a controller. As treatment continues, the gates are opened to increase flow in regions of lesser flow, and closed to decrease flow in regions of greater flow, thereby approximately equalizing the amount of fluid reaching each part of the plume.

  16. Method and apparatus for sampling low-yield wells

    DOE Patents [OSTI]

    Last, George V. (Richland, WA); Lanigan, David C. (Kennewick, WA)

    2003-04-15T23:59:59.000Z

    An apparatus and method for collecting a sample from a low-yield well or perched aquifer includes a pump and a controller responsive to water level sensors for filling a sample reservoir. The controller activates the pump to fill the reservoir when the water level in the well reaches a high level as indicated by the sensor. The controller deactivates the pump when the water level reaches a lower level as indicated by the sensors. The pump continuously activates and deactivates the pump until the sample reservoir is filled with a desired volume, as indicated by a reservoir sensor. At the beginning of each activation cycle, the controller optionally can select to purge an initial quantity of water prior to filling the sample reservoir. The reservoir can be substantially devoid of air and the pump is a low volumetric flow rate pump. Both the pump and the reservoir can be located either inside or outside the well.

  17. Quantum Well Thermoelectrics for Converting Waste Heat to Electricity

    SciTech Connect (OSTI)

    Saeid Ghamaty

    2007-04-01T23:59:59.000Z

    Fabrication development of high efficiency quantum well (QW) thermoelectric continues with the P-type and N-type Si/Si{sub 80}Ge{sub 20} films with encouraging results. These films are fabricated on Si substrates and are being developed for low as well as high temperature operation. Both isothermal and gradient life testing are underway. One couple has achieved over 4000 hours at T{sub H} of 300 C and T{sub C} of 50 C with little or no degradation. Emphasis is now shifting towards couple and module design and fabrication, especially low resistance joining between N and P legs. These modules can be used in future energy conversion systems as well as for air conditioning.

  18. Thermal extraction analysis of five Los Azufres production wells

    SciTech Connect (OSTI)

    Kruger, Paul; Quijano, Luis

    1995-01-26T23:59:59.000Z

    Thermal energy extraction from five wells supplying 5-MWe wellhead generators in three zones of the Los Azufres geothermal field has been examined from production and chemical data compiled over 14-years of operation. The data, as annual means, are useful in observing small-scale changes in reservoir performance with continuous production. The chemical components are chloride for quality control and the geothermometer elements for reservoir temperatures. The flowrate and fluid enthalpy data are used to calculate the thermal extraction rates. Integration of these data provides an estimate of the total energy extracted from the zone surrounding the well. The combined production and chemical geothermometer data are used to model the produced fluid as coming from just-penetrating wells for which the annual produced mass originates from a series of concentric hemispheric shells moving out into the reservoir. Estimates are made of the drawdown distance into the reservoir and the far-field conditions.

  19. Completion Report for Well ER-EC-1

    SciTech Connect (OSTI)

    Townsend, M.J.

    2000-12-01T23:59:59.000Z

    Well ER-EC-1 was drilled for the U.S. Department of Energy, Nevada Operations Office in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in the spring of 1999 as part of the U.S. Department of Energy's hydrogeologic investigation well program in the Western Pahute Mesa - Oasis Valley region just west of the Test Site. A 44.5-centimeter surface hole was drilled and cased off to the depth 675.1 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 1,524.0 meters. A preliminary composite, static, water level was measured at the depth of approximately 566.3 meters prior to installation of the completion string. One completion string with three isolated, slotted intervals was installed in the well. Detailed lithologic descriptions with preliminary stratigraphic assignments are included in the report. These are based on composite drill cuttings collected every 3 meters and 31 sidewall samples taken at various depths below 680 meters, supplemented by geophysical log data. Detailed chemical and mineralogical studies of rock samples are in progress. The well penetrated Tertiary-age lava and tuff of the Timber Mountain Group, the Paintbrush Group, the Calico Hills Formation, the Crater Flat Group, and the Volcanics of Quartz Mountain. The preliminary geologic interpretation of data from Well ER-EC-1 indicates the presence of a structural trough or bench filled with a thick section of post-Rainier Mesa lava. These data also suggest that this site is located on a buried structural ridge that may separate the Silent Canyon and Timber Mountain caldera complexes.

  20. Completion Report for Well ER-EC-4

    SciTech Connect (OSTI)

    M. J. Townsend

    2000-09-01T23:59:59.000Z

    Well ER-EC-4 was drilled for the US Department of Energy, Nevada Operations Office in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in the summer of 1999 as part of the U.S Department of Energy's hydrogeologic investigation well program in the Western Pahute Mesa - Oasis Valley region just west of the Test Site. A 44.5-centimeter surface hole was drilled and cased off to a depth of 263.7 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 1,062.8 meters. One completion string with three isolated slotted intervals was installed in the well. A preliminary composite, static, water level was measured at the depth of 228.3 meters, two months after installation of the completion string. Detailed lithologic descriptions with preliminary stratigraphic assignments are included in the report. These are based on composite drill cuttings collected every 3 meters, and 35 sidewall samples taken at various depths below 286.5 meters, supplemented by geophysical log data. Detailed chemical and mineralogical studies of rock samples are in progress. The well was collared in basalt and penetrated Tertiary-age lava and tuff of the Thirsty Canyon Group, the Volcanics of Fortymile Canyon, and the Timber Mountain Group. The preliminary geologic interpretation of data from this well helps pinpoint the location of the western margin of the Timber Mountain caldera complex in the southern Nevada volcanic field.

  1. Optimization of well rates under gas coning conditions

    E-Print Network [OSTI]

    Urbanczyk, Christopher Henry

    1989-01-01T23:59:59.000Z

    production rates under gas caning conditions. This new method applies to an oil reservoir overlain by a large gas cap containing multiple wells. The cases consider have a limit on the maximum field production rate for both oil and gas. It was found... that the optimal p~ion rates are achieved when Eq. 1 is satisfied for any pair of wells i and j: ) I = constant i = 1, . . . , n dqo This condition minimizes the f ield gas production rate when the maximum field production rate for oil is met, and maximizes...

  2. The effect of perforation patterns upon well productivity

    E-Print Network [OSTI]

    Neale, John William

    1955-01-01T23:59:59.000Z

    )ority of reservoirs it has been observed that the oil exists originally at or near its bubble point? llhen che pressure is reduoed at the well bore, oonsiderable quantities of gas are evolved The oreation of a free gas phase in the interstioes of the porous medium... the flow of oil into the well borea The use of a direot eleotrioal analogy beoomes someuhat more diffioult when dealing with sn oil not highly undersaturated, The oreation of a free gas phase oauses severe ohanges in the resistanoe to the flow of oil...

  3. Wellness assessment in three university populations: undergraduates, graduates, and athletes

    E-Print Network [OSTI]

    Smith, Allison Marie

    1985-01-01T23:59:59.000Z

    , and growth. Awareness may begin with completing an inventory evaluating wellness and ident1fying areas of strength and weakness, Through educat1on, 1nformation is provided on wellness related topics such as alcohol and drug use. Finally, growth usually... reporting good practices. This was supported by the fact that as age increased and the number of good habits increased, then health status improved. For instance, the people aged 55-64 who followed seven good health habits were at the same health status...

  4. Drilling, completing, and maintaining geothermal wells in Baca, New Mexico

    SciTech Connect (OSTI)

    Pye, S.

    1981-01-01T23:59:59.000Z

    A 55-MWe power plant is planned for development in the Baca location in the Jemez Mountains of New Mexico. Union Geothermal has contracted to provide the steam for the power plant. This paper uses Baca Well No. 13 as a case history to describe the drilling methods, casing program, cementing program, and completion methods used by Union. The discussion includes aerated-water. Lost circulation control in mud drilling and its effort on the subsequent casing cementing program are discussed. The paper also includes a case history of scale removal methods used in Baca Well No. 11, including drilling the scale out with a turbodrill and attempts at chemical inhibition.

  5. Cubic GaN/AlN multiple quantum well photodetector

    SciTech Connect (OSTI)

    DeCuir, E. A. Jr.; Manasreh, M. O. [Department of Electrical Engineering, University of Arkansas, 3217 Bell Engineering Center, Fayetteville, Arkansas 72701 (United States); Tschumak, Elena; Schoermann, J.; As, D. J.; Lischka, K. [Department of Physics, University of Paderborn, Paderborn 33095 (Germany)

    2008-05-19T23:59:59.000Z

    Photodetectors based on intersubband transitions in molecular beam epitaxially grown cubic GaN/AlN multiple quantum wells were fabricated and tested. The presence of the intersubband transition was confirmed by using the optical absorption technique for structures with different well widths. Samples were polished into waveguide configuration on which the devices were fabricated. The photoresponse spectra were collected in the temperature range of 77-215 K under the influence of small bias voltages. All devices exhibit photovoltaic effect where the photoresponse is observed at zero bias voltage. Theoretical calculations of the intersubband transition were performed and found to be in agreement with the observed results.

  6. Property:FirstWellLog | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag Jump to: navigation, search Property NameFirstWellDepth Jump to:FirstWellLog Jump

  7. Property:FirstWellName | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag Jump to: navigation, search Property NameFirstWellDepth Jump to:FirstWellLog

  8. The Infinite Square Well with a Point Interaction: A Discussion on the Different Parametrizations

    E-Print Network [OSTI]

    Manuel Gadella; M. Ángeles García-Ferrero; Sergio González-Martín; Félix H. Maldonado-Villamizar

    2015-02-10T23:59:59.000Z

    The construction of Dirac delta type potentials has been achieved with the use of the theory of self adjoint extensions of non-self adjoint formally Hermitian (symmetric) operators. The application of this formalism to investigate the possible self adjoint extensions of the one dimensional kinematic operator $K=-d^2/dx^2$ on the infinite square well potential is quite illustrative and has been given elsewhere. This requires the definition and use of four independent real parameters, which relate the boundary values of the wave functions at the walls. By means of a different approach, that fixes matching conditions at the origin for the wave functions, it is possible to define a perturbation of the type $a\\delta(x)+b\\delta'(x)$, thus depending on two parameters, on the infinite square well. The objective of this paper is to investigate whether these two approaches are compatible in the sense that perturbations like $a\\delta(x)+b\\delta'(x)$ can be fixed and determined using the first approach.

  9. Testing geopressured geothermal reservoirs in existing wells: Detailed completion prognosis for geopressured-geothermal well of opportunity, prospect #7

    SciTech Connect (OSTI)

    Godchaux, Frank A.

    1981-06-01T23:59:59.000Z

    This book is a detailed prognosis covering the acquisition, completion, drilling, testing and abandonment of the Frank A. Godchaux, III, Well No. 1 under the Wells of Opportunity Program. The well is located approximately 12 miles southeast of the city of Abbeville, Louisiana. Eaton Operating Company proposes to test a section of the Planulina sand at a depth ranging from 15,584 to 15,692 feet. The reservoir pressure is estimated to be 14,480 psi and the temperature of the formation water is expected to be 298 F. The water salinity is calculated to be 75,000 ppm. The well is expected to produce 20,000 barrels of water per day with a gas content of 44 standard cubic feet pre barrel. The well was acquired from C and K Petroleu, Inc. on March 20, 1981. C and K abandoned the well at a total depth of 16,000 feet. The well has a 7-5/8 inches liner set at 13,387 feet. Eaton proposes to set 5-1/2 inch casing at 16,000 feet and produce the well through the casing using a 2-3/8 inch tubing string for wireline protection and for pressure control. A 4,600 foot saltwater disposal well will be drilled on the site and testing will be conducted similar to previous Eaton tests. The total estimated cost to perform the work is $2,959,000. An optional test from 14,905 to 15,006 feet may be performed after the original test and will require a workover with a rig on location to perform the plugback. The surface production equipment utilized on previous Eaton WOO tests will be utilized on this test. This equipment has worked satisfactorily and all parties involved in the testing are familiar with its operation. The Institute of Gas Technology and Mr. Don Clark will handle the sampling and testing and reservoir evaluation, respectively, as on the previous Eaton tests.

  10. Testing geopressured geothermal reservoirs in existing wells: Detailed completion prognosis for geopressured-geothermal well of opportunity, prospect #2

    SciTech Connect (OSTI)

    None

    1981-03-01T23:59:59.000Z

    A geopressured-geothermal test of Martin Exploration Company's Crown Zellerbach Well No. 2 will be conducted in the Tuscaloosa Trend. The Crown Zellerbach Well No. 1 will be converted to a saltwater disposal well for disposal of produced brine. The well is located in the Satsuma Area, Livingston parish, Louisiana. Eaton proposes to test the Tuscaloosa by perforating the 7 inch casing from 16,718 feet to 16,754 feet. The reservoir pressure at an intermediate formation depth of 16,736 feet is anticipated to be 12,010 psi and the temperature is anticipated to be 297 F. Calculated water salinity is 16,000 ppm. The well is expected to produce a maximum of 16,000 barrels of water a day with a gas content of 51 SCF/bbl. Eaton will re-enter the test well, clean out to 17,000 feet, run production casing and complete the well. The disposal well will be re-entered and completed in the 9-5/8 inch casing for disposal of produced brine. Testing will be conducted similar to previous Eaton annular flow WOO tests. An optional test from 16,462 feet to 16,490 feet may be performed after the original test and will require a workover with a rig on location to perform the plugback. The surface production equipment utilized on previous tests will be utilized on this test. The equipment has worked satisfactorily and all parties involved in the testing are familiar with its operation. Weatherly Engineering will operate the test equipment. The Institute of Gas Technology (IGT) and Mr. Don Clark will handle sampling, testing and reservoir engineering evaluation, respectively. wireline work required will be awarded on basis of bid evaluation. At the conclusion of the test period, the D.O.E. owned test equipment will be removed from the test site, the test and disposal wells plugged and abandoned and the sites restored to the satisfaction of all parties.

  11. In-well pumped mid-infrared PbTe/CdTe quantum well vertical external cavity surface emitting lasers

    SciTech Connect (OSTI)

    Khiar, A., E-mail: amir.khiar@jku.at; Witzan, M.; Hochreiner, A.; Eibelhuber, M.; Springholz, G. [Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenbergerstr. 69, A-4040 Linz (Austria); Volobuev, V. [Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenbergerstr. 69, A-4040 Linz (Austria); National Technical University “Kharkiv Polytechnic Institute,” Frunze str. 21, 61002 Kharkiv (Ukraine)

    2014-06-09T23:59:59.000Z

    Optical in-well pumped mid-infrared vertical external cavity surface emitting lasers based on PbTe quantum wells embedded in CdTe barriers are realized. In contrast to the usual ternary barrier materials of lead salt lasers such as PbEuTe of PbSrTe, the combination of narrow-gap PbTe with wide-gap CdTe offers an extremely large carrier confinement, preventing charge carrier leakage from the quantum wells. In addition, optical in-well pumping can be achieved with cost effective and readily available near infrared lasers. Free carrier absorption, which is a strong loss mechanism in the mid-infrared, is strongly reduced due to the insulating property of CdTe. Lasing is observed from 85?K to 300?K covering a wavelength range of 3.3–4.2??m. The best laser performance is achieved for quantum well thicknesses of 20?nm. At low temperature, the threshold power is around 100 mW{sub P} and the output power more than 700 mW{sub P}. The significance of various charge carrier loss mechanisms are analyzed by modeling the device performance. Although Auger losses are quite low in IV–VI semiconductors, an Auger coefficient of C{sub A}?=?3.5?×?10{sup ?27} cm{sup 6} s{sup ?1} was estimated for the laser structure, which is attributed to the large conduction band offset.

  12. Testing geopressured geothermal reservoirs in existing wells: Pauline Kraft Well No. 1, Nueces County, Texas. Final report

    SciTech Connect (OSTI)

    Not Available

    1981-01-01T23:59:59.000Z

    The Pauline Kraft Well No. 1 was originally drilled to a depth of 13,001 feet and abandoned as a dry hole. The well was re-entered in an effort to obtain a source of GEO/sup 2/ energy for a proposed gasohol manufacturing plant. The well was tested through a 5-inch by 2-3/8 inch annulus. The geological section tested was the Frio-Anderson sand of Mid-Oligocene age. The interval tested was from 12,750 to 12,860 feet. A saltwater disposal well was drilled on the site and completed in a Micocene sand section. The disposal interval was perforated from 4710 to 4770 feet and from 4500 to 4542 feet. The test well failed to produce water at substantial rates. Initial production was 34 BWPD. A large acid stimulation treatment increased productivity to 132 BWPD, which was still far from an acceptable rate. During the acid treatment, a failure of the 5-inch production casing occurred. The poor production rates are attributed to a reservoir with very low permeability and possible formation damage. The casing failure is related to increased tensile strain resulting from cooling of the casing by acid and from the high surface injection pressure. The location of the casing failure is now known at this time, but it is not at the surface. Failure as a result of a defect in a crossover joint at 723 feet is suspected.

  13. ORIGINAL PAPER How well do sediment indicators record past climate?

    E-Print Network [OSTI]

    Hu, Feng Sheng

    , University of Illinois, 245 Natural History Building, 1301 W. Green St., Urbana, IL 61801, USA e-mail: fshu climatic change. However, paleoclimatic interpretations of sediment records are often complex because eachORIGINAL PAPER How well do sediment indicators record past climate? An evaluation using annually

  14. Acid Placement in Acid Jetting Treatments in Long Horizontal Wells

    E-Print Network [OSTI]

    Sasongko, Hari

    2012-07-16T23:59:59.000Z

    of Vertically Extensive, Heterogeneous Gas Reservoirs. SPE Prod & Fac 25 (3): 388-397. SPE-124881-PA. http://dx.doi.org/10.2118/124881-PA. Ritchie, B., Abbasy, I., Pitts, M.J., and White, B. 2008. Challenges in Completing Long Horizontal Wells Selectively...

  15. Flow monitoring and control system for injection wells

    DOE Patents [OSTI]

    Corey, J.C.

    1991-01-01T23:59:59.000Z

    The present invention relates to a system for monitoring and controlling the rate of fluid flow from an injection well used for in-situ remediation of contaminated groundwater. The United States Government has rights in this invention pursuant to Contract No. DE-AC09-89SR18035 between the US Department of Energy and Westinghouse Savannah River Company.

  16. AIR FLOW MODELING IN DEEP WELLS: APPLICATION TO MINING VENTILATION

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    AIR FLOW MODELING IN DEEP WELLS: APPLICATION TO MINING VENTILATION E. WITRANT1, K.H. JOHANSSON2. Introduction Traditionally, the control of large-scale systems, such as mining ventilation, has been performed to the preliminary design of the global system and automation devices. Mining ventilation provides for an interesting

  17. AIR FLOW MODELING IN DEEP WELLS: APPLICATION TO MINING VENTILATION

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    AIR FLOW MODELING IN DEEP WELLS: APPLICATION TO MINING VENTILATION E. WITRANT1, K.H. JOHANSSON2, the control of large-scale systems, such as mining ventilation, has been performed locally with decentralized of the global system and automation devices. Mining ventilation provides for an interesting exam- ple

  18. Modeling performance of horizontal, undulating, and multilateral wells

    E-Print Network [OSTI]

    Kamkom, Rungtip

    2009-05-15T23:59:59.000Z

    .....................................................................................................1 1.2 Literature Review............................................................................................2 1.3 Objectives........................................................................................................4 1.4...........................................................18 2.3 Two-Phase Reservoirs...................................................................................21 2.4 Systematic Table for Horizontal Well Inflow Performance..........................22 2.5 Wellbore Pressure Drop...

  19. Fluid-Rock Characterization and Interactions in NMR Well Logging

    SciTech Connect (OSTI)

    George J. Hirasaki; Kishore K. Mohanty

    2005-09-05T23:59:59.000Z

    The objective of this report is to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. The advances made in the understanding of NMR fluid properties are summarized in a chapter written for an AAPG book on NMR well logging. This includes live oils, viscous oils, natural gas mixtures, and the relation between relaxation time and diffusivity. Oil based drilling fluids can have an adverse effect on NMR well logging if it alters the wettability of the formation. The effect of various surfactants on wettability and surface relaxivity are evaluated for silica sand. The relation between the relaxation time and diffusivity distinguishes the response of brine, oil, and gas in a NMR well log. A new NMR pulse sequence in the presence of a field gradient and a new inversion technique enables the T{sub 2} and diffusivity distributions to be displayed as a two-dimensional map. The objectives of pore morphology and rock characterization are to identify vug connectivity by using X-ray CT scan, and to improve NMR permeability correlation. Improved estimation of permeability from NMR response is possible by using estimated tortuosity as a parameter to interpolate between two existing permeability models.

  20. Applications of CBR in oil well drilling "A general overview"

    E-Print Network [OSTI]

    Aamodt, Agnar

    Applications of CBR in oil well drilling "A general overview" Samad Valipour Shokouhi1,3 , Agnar. In this paper we present the evolving story of CBR applied in petroleum engineering especially in drilling engineering. Drilling engineering contains several potential domains of interest, in which CBR can be employed

  1. Math for Poets and Drummers Rachel Wells Hall

    E-Print Network [OSTI]

    Hall, Rachel W.

    Math for Poets and Drummers Rachel Wells Hall Department of Mathematics and Computer Science Saint a meter, is a pattern of stressed and unstressed syllables. English poets use about a dozen different line and "these" in the third line refer to the critics.) 1 #12;But most by Numbers judge a Poet's Song

  2. Together we'll create your future Electronic Systems

    E-Print Network [OSTI]

    Wirosoetisno, Djoko

    : Professor Alan Purvis CES (Centre for Electronic Systems) School of Engineering Durham University Science now and potentially in the future. Ultrasonics Centre for Electronic Systems School of EngineeringTogether we'll create your future Centre for Electronic Systems Research Opportunities Contact

  3. Transient pressure behavior of multiple-fractured gas wells

    E-Print Network [OSTI]

    Choo, Yew Kai

    1985-01-01T23:59:59.000Z

    -theta" coordinates will be developed. This simulator will then be employed to study the tr ansient pressure behavior of low-permeability gas wells with multiple finite-conductivity fractures. This thesis follows the form and style of the Journal of Petr oleum...

  4. Designing a Mobile Health Tool for Preterm Infant Wellness

    E-Print Network [OSTI]

    Hayes, Gillian R.

    Designing a Mobile Health Tool for Preterm Infant Wellness Karen P. Tang, Sen H. Hirano, Karen G Estrellita in a long-term deployment study. Keywords-preterm infants, prematurity, health informatics, infant for delays in cognitive, language, motor, and sensory processing skills [3, 4]. Past work in neonatal care

  5. Health and Wellness @ U.Va. Department of Student Health

    E-Print Network [OSTI]

    Acton, Scott

    Health and Wellness @ U.Va. Department of Student Health Counseling and Psychological Services "Without health there is no happiness. An attention to health, then, should take the place of every other on Accreditation of Healthcare Organizations 2013 Parents Handbook p. 36-41 #12;Student Health Services · 12:30am-2

  6. FULL FUEL CYCLE ASSESSMENT WELL TO WHEELS ENERGY INPUTS,

    E-Print Network [OSTI]

    FULL FUEL CYCLE ASSESSMENT WELL TO WHEELS ENERGY INPUTS, EMISSIONS, AND WATER IMPACTS Preparation for the AB 1007 (Pavley) Alternative Transportation Fuels Plan Proceeding Prepared For: California Energy, Project Manager Ray Tuvell, Manager EMERGING FUELS & TECHNOLOGY OFFICE Rosella Shapiro, Deputy Director

  7. FULL FUEL CYCLE ASSESSMENT WELL TO TANK ENERGY INPUTS,

    E-Print Network [OSTI]

    FULL FUEL CYCLE ASSESSMENT WELL TO TANK ENERGY INPUTS, EMISSIONS, AND WATER IMPACTS Prepared For Manager McKinley Addy, Project Manager Ray Tuvell, Manager EMERGING FUELS & TECHNOLOGY OFFICE Rosella Shapiro, Deputy Director FUELS AND TRANSPORTATION DIVISION B.B Blevins Executive Director DISCLAIMER

  8. Improved Efficiency of Oil Well Drilling through Case Based Reasoning

    E-Print Network [OSTI]

    Aamodt, Agnar

    to give the operator valuable advise on how to go about solving the new case. Introduction Drilling of oil1 Improved Efficiency of Oil Well Drilling through Case Based Reasoning Paal Skalle Norwegian University of Science and Technology, Dept. of Petroleum Technology, N-7491, Trondheim, Norway (pskalle

  9. Well-posedness of Einstein's Equation with Redshift Data

    E-Print Network [OSTI]

    Christopher Winfield

    2011-11-22T23:59:59.000Z

    We study the solvability of a system of ordinary differential equations derived from null geodesics of the LTB metric with data given in terms of a so-called redshift parameter. Data is introduced along these geodesics by the luminosity distance function. We check our results with luminosity distance depending on the cosmological constant and with the well-known FRW model.

  10. Emergency Factsheet for Disinfecting Water Wells by Shock Chlorination

    E-Print Network [OSTI]

    an alternate water source during the treatment period. Most water treatment equipment (such as water heaters, release the air to allow the tank to be filled with chlorinated water. Drain all hot water heatersEmergency Factsheet for Disinfecting Water Wells by Shock Chlorination Mark L. McFarland, Associate

  11. Completion Report for Well ER-EC-2A

    SciTech Connect (OSTI)

    M. J. Townsend

    2002-03-01T23:59:59.000Z

    Well ER-EC-2A was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Operations Office, in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in January and February of 2000 as part of a hydrogeologic investigation program in the Pahute Mesa - Oasis Valley region just west of the Nevada Test Site. A 44.5-centimeter surface hole was drilled and cased off to a depth of 412.9 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 1,516.1 meters. One completion string with three isolated slotted intervals was installed in the well. A preliminary composite, static water level was measured at the depth of 228.0 meters, approximately two months after installation of the completion string. Detailed lithologic descriptions with preliminary stratigraphic assignments are included in this report. These are based on composite drill cuttings collected every 3 meters, and 81 sidewall samples taken at various depths below 212 meters, supplemented by geophysical log data. Detailed petrographic, chemical, and mineralogical studies of rock samples were conducted on 30 samples. The well was collared in rhyolite lava and penetrated Tertiary-age lava and tuff of the Volcanics of Fortymile Canyon and the Timber Mountain Group. The preliminary geologic interpretation of borehole data indicates that this well was drilled within the margins of the buried Rainier Mesa and Ammonia Tanks calderas, and that caldera collapse in this area was deeper than expected, resulting in a section of Volcanics of Fortymile Canyon (caldera-filling deposit) that is much thicker than expected.

  12. Completion report for Well ER-EC-6

    SciTech Connect (OSTI)

    M. J. Townsend

    2000-05-01T23:59:59.000Z

    Well ER-EC-6 was drilled for the U.S. Department of Energy, Nevada Operations Office in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in the spring of 1999 as part of the DOE's hydrogeologic investigation well program in the Western Pahute Mesa - Oasis Valley region just west of the Nevada Test Site. A 66-centimeter surface hole was drilled and cased off to the depth of 485.1 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 1,524.0 meters. A preliminary composite, static, water level was measured at the depth of approximately 434.6 meters prior to installation of the completion string. One completion string with four isolated, slotted intervals was installed in the well. Detailed lithologic descriptions with preliminary stratigraphic assignments are included in the report. These are based on composite drill cuttings collected every 3 meters and 33 sidewall samples taken at various depths below 504.4 meters, supplemented by geophysical log data. Detailed chemical and mineralogical studies of rock samples are in progress. The well penetrated Tertiary-age lava and tuff of the Timber Mountain Group, the Paintbrush Group, the Calico Hills Formation, and the Volcanics of Quartz Mountain. Intense hydrothermal alteration was observed below the depth of 640 m. The preliminary geologic interpretation indicates that this site may be located on a buried structural ridge that separates the Silent Canyon and Timber Mountain caldera complexes.

  13. Completion Report for Well ER-EC-7

    SciTech Connect (OSTI)

    Bechtel Nevada

    2004-10-01T23:59:59.000Z

    Well ER-EC-7 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. This well was drilled in the summer of 1999 as part of the Department of Energy's hydrogeologic investigation program in the Western Pahute Mesa - Oasis Valley region just west of the Test Site. A 44.5-centimeter surface hole was drilled and cased off to a depth of 265.8 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 422.5 meters. The planned depth of 762 meters was not reached due to borehole stability problems. One completion string with two isolated slotted intervals was installed in the well. A preliminary composite, static, water level was measured at the depth of 227.8 meters, 20 days after installation of the completion string. Detailed lithologic descriptions with stratigraphic assignments are included in the report. These are based on composite drill cuttings, supplemented by geophysical log data, and incorporating data from detailed chemical and mineralogical studies of rock samples. Beneath a thin alluvial deposit, the well penetrated 410 meters of lava and bedded tuff of the Volcanics of Fortymile Canyon Group, deposited in the Timber Mountain caldera moat after caldera collapse. The geologic interpretation of data from this well provides information on the thickness, lithologic composition, and hydrogeologic character of moat-filling rocks in the southern portion of the Timber Mountain caldera complex in the southwestern Nevada volcanic field.

  14. Generic effluent monitoring system certification for salt well portable exhauster

    SciTech Connect (OSTI)

    Glissmeyer, J.A.; Maughan, A.D.

    1997-09-01T23:59:59.000Z

    Tests were conducted to verify that the Generic Effluent Monitoring System (GEMS), as it is applied to the Salt Well Portable Exhauster, meets all applicable regulatory performance criteria for air sampling systems at nuclear facilities. These performance criteria address both the suitability of the air sampling probe location and the transport of the sample to the collection devices. The criteria covering air sampling probe location ensure that the contaminants in the stack are well mixed with the airflow at the probe location such that the extracted sample represents the whole. The sample transport criteria ensure that the sampled contaminants are quantitatively delivered to the collection device. The specific performance criteria are described in detail in the report. The tests demonstrated that the GEMS/Salt Well Exhauster system meets all applicable performance criteria. Pacific Northwest National Laboratory conducted the testing using a mockup of the Salt Well Portable Exhauster stack at the Numatec Hanford Company`s 305 Building. The stack/sampling system configuration tested was designed to provide airborne effluent control for the Salt Well pumping operation at some U.S. Department of Energy (DOE) radioactive waste storage tanks at the Hanford Site, Washington. The portable design of the exhauster allows it to be used in other applications and over a range of exhaust air flowrates (approximately 200 - 1100 cubic feet per minute). The unit includes a stack section containing the sampling probe and another stack section containing the airflow, temperature and humidity sensors. The GEMS design features a probe with a single shrouded sampling nozzle, a sample delivery line, and sample collection system. The collection system includes a filter holder to collect the sample of record and an in-line detector head and filter for monitoring beta radiation-emitting particles.

  15. Flow tests of the Gladys McCall well

    SciTech Connect (OSTI)

    Randolph, P.L.; Hayden, C.G.; Rogers, L.A. (Institute of Gas Technology, Chicago, IL (United States))

    1992-04-01T23:59:59.000Z

    This report pulls together the data from all of the geopressured-geothermal field research conducted at the Gladys McCall well. The well produced geopressured brine containing dissolved natural gas from the Lower Miocene sands at a depth of 15,150 to 16,650 feet. More than 25 million barrels of brine and 727 million standard cubic feet of natural gas were produced in a series of flow tests between December 1982 and October 1987 at various brine flow rates up to 28,000 barrels per day. Initial short-term flow tests for the Number 9 Sand found the permeability to be 67 to 85 md (millidarcies) for a brine volume of 85 to 170 million barrels. Initial short-term flow tests for the Number 8 Sand found a permeability of 113 to 132 md for a reservoir volume of 430 to 550 million barrels of brine. The long-term flow and buildup test of the Number 8 Sand found that the high-permeability reservoir connected to the wellbore (measured by the short-term flow test) was connected to a much larger, low-permeability reservoir. Numerical simulation of the flow and buildup tests required this large connected reservoir to have a volume of about 8 billion barrels (two cubic miles of reservoir rock) with effective permeabilities in the range of 0.2 to 20 md. Calcium carbonate scale formation in the well tubing and separator equipment was a problem. During the first 2 years of production, scale formation was prevented in the surface equipment by injection of an inhibitor upstream of the choke. Starting in 1985, scale formation in the production tubing was successfully prevented by injecting inhibitor pills'' directly into the reservoir. Corrosion and/or erosion of surface piping and equipment, as well as disposal well tubing, was also significant.

  16. Using coiled tubing in HP/HT corrosive gas wells

    SciTech Connect (OSTI)

    NONE

    1997-06-01T23:59:59.000Z

    High-yield-strength (100,000 psi) coiled tubing (CT) material has allowed for CT intervention in Mobile Bay Norphlet completions. These wells are approximately 22,000-ft-vertical-depth, high-pressure, hydrogen sulfide (H{sub 2}S) gas wells. Operations performed on the Norphlet wells include a scale cleanout to approximately 22,000 ft, a hydrochloric acid (HCl) job at 415 F, and buildup removal from a safety valve. The scale cleanout was performed first with a spiral wash tool. The well was killed with 10-lbm/gal sodium bromide (NaBr) brine; the same brine was used for cleanout fluid. Cost savings of 60% were realized. A HCl matrix acid job at 415 F was performed next, followed by a scale cleanout across the downhole safety valve. The safety valve was cleared of debris in 1 operational day. Estimated cost of the CT operation was 5 to 10% less than that of a rig workover. The 100,000-psi-yield Ct material used for the Mobile Bay operations does not comply with the (NACE) Standard MR-0175. But on the basis of extensive laboratory testing by the CT manufacturer, the decision was made that the material would pass a modified test performed with decreased H{sub 2}S levels. A maximum level of 400 ppm H{sub 2}S was determined as the safe working limit. Because the maximum H{sub 2}S content in the wells described later was 120 ppm, the risk of sulfide-stress cracking (SSC) was considered acceptably low. Elevated bottomhole temperatures (BHT`s) increase the corrosion rate of metals exposed to corrosives. Extensive laboratory testing of corrosion inhibitors allowed for design of a matrix-acidizing treatment to remove near-wellbore damage caused by lost zinc bromide (ZnBr) completion brine.

  17. Technical and economic evaluation of selected compact drill rigs for drilling 10,000 foot geothermal production wells

    SciTech Connect (OSTI)

    Huttrer, G.W. [Geothermal Management Company, Inc., Frisco, CO (United States)

    1997-11-01T23:59:59.000Z

    This report summarizes the investigation and evaluation of several {open_quotes}compact{close_quotes} drill rigs which could be used for drilling geothermal production wells. Use of these smaller rigs would save money by reducing mobilization costs, fuel consumption, crew sizes, and environmental impact. Advantages and disadvantages of currently-manufactured rigs are identified, and desirable characteristics for the {open_quotes}ideal{close_quotes} compact rig are defined. The report includes a detailed cost estimate of a specific rig, and an evaluation of the cost/benefit ratio of using this rig. Industry contacts for further information are given.

  18. UIC permitting process for class IID and Class III wells: Protection of drinking water in New York State

    SciTech Connect (OSTI)

    Hillenbrand, C.J. [EPA, New York, NY (United States)

    1995-09-01T23:59:59.000Z

    The U.S. Environmental Protection Agency (EPA) Region II, Underground Injection Control (UIC) Program regulates injection wells in the State of New York to protect drinking water; UIC regulations can be found under Title 40 of the Code of Federal Regulations Parts 124, 144, 146 and 147. Operators of solution mining injection wells (UIC Class IIIG) and produced fluid disposal wells (UIC Class IID) are required to obtain an UIC permit for authorization to inject. The permitting process requires submittal of drinking water, geologic and proposed operational data in order to assure that pressure build-up within the injection zone will not compromise confining layers and allow vertical migration of fluid into Underground Sources of Drinking Water (USDW). Additional data is required within an Area of Review (AOR), defined as an area determined by the intersection of the adjusted potentiometric surface produced by injection and a depth 50 feet below the base of the lowermost USDW, or a radius of 1/4 mile around the injection well, whichever is greater. Locations of all wells in the AOR must be identified, and completion reports and plugging reports must be submitted. Requirements are set for maximum injection pressure and flow rates, monitoring of brine properties of the injection well and monitoring of water supply wells in the AOR for possible contamination. Any noncompliance with permit requirements constitutes a violation of the Safe Drinking Water Act and is grounds for enforcement action, including possible revocation of permit. Presently four Class IID wells are authorized under permit in New York State. The Queenston sandstone, Medina sandstone, Salina B, Akron dolomite and Oriskany sandstone have been used for brine disposal; the lower Ordovician-Cambrian section is currently being considered as an injection zone. Over one hundred Class IIIG wells are authorized under permit in New York State and all have been utilized for solution mining of the Syracuse salt.

  19. Reducing uncertainty in geostatistical description with well testing pressure data

    SciTech Connect (OSTI)

    Reynolds, A.C.; He, Nanqun [Univ. of Tulsa, OK (United States); Oliver, D.S. [Chevron Petroleum Technology Company, La Habra, CA (United States)

    1997-08-01T23:59:59.000Z

    Geostatistics has proven to be an effective tool for generating realizations of reservoir properties conditioned to static data, e.g., core and log data and geologic knowledge. Due to the lack of closely spaced data in the lateral directions, there will be significant variability in reservoir descriptions generated by geostatistical simulation, i.e., significant uncertainty in the reservoir descriptions. In past work, we have presented procedures based on inverse problem theory for generating reservoir descriptions (rock property fields) conditioned to pressure data and geostatistical information represented as prior means for log-permeability and porosity and variograms. Although we have shown that the incorporation of pressure data reduces the uncertainty below the level contained in the geostatistical model based only on static information (the prior model), our previous results assumed did not explicitly account for uncertainties in the prior means and the parameters defining the variogram model. In this work, we investigate how pressure data can help detect errors in the prior means. If errors in the prior means are large and are not taken into account, realizations conditioned to pressure data represent incorrect samples of the a posteriori probability density function for the rock property fields, whereas, if the uncertainty in the prior mean is incorporated properly into the model, one obtains realistic realizations of the rock property fields.

  20. Zero Discharge Water Management for Horizontal Shale Gas Well Development

    SciTech Connect (OSTI)

    Paul Ziemkiewicz; Jennifer Hause; Raymond Lovett; David Locke Harry Johnson; Doug Patchen

    2012-03-31T23:59:59.000Z

    Hydraulic fracturing technology (fracking), coupled with horizontal drilling, has facilitated exploitation of huge natural gas (gas) reserves in the Devonian-age Marcellus Shale Formation (Marcellus) of the Appalachian Basin. The most-efficient technique for stimulating Marcellus gas production involves hydraulic fracturing (injection of a water-based fluid and sand mixture) along a horizontal well bore to create a series of hydraulic fractures in the Marcellus. The hydraulic fractures free the shale-trapped gas, allowing it to flow to the well bore where it is conveyed to pipelines for transport and distribution. The hydraulic fracturing process has two significant effects on the local environment. First, water withdrawals from local sources compete with the water requirements of ecosystems, domestic and recreational users, and/or agricultural and industrial uses. Second, when the injection phase is over, 10 to 30% of the injected water returns to the surface. This water consists of flowback, which occurs between the completion of fracturing and gas production, and produced water, which occurs during gas production. Collectively referred to as returned frac water (RFW), it is highly saline with varying amounts of organic contamination. It can be disposed of, either by injection into an approved underground injection well, or treated to remove contaminants so that the water meets the requirements of either surface release or recycle use. Depending on the characteristics of the RFW and the availability of satisfactory disposal alternatives, disposal can impose serious costs to the operator. In any case, large quantities of water must be transported to and from well locations, contributing to wear and tear on local roadways that were not designed to handle the heavy loads and increased traffic. The search for a way to mitigate the situation and improve the overall efficiency of shale gas production suggested a treatment method that would allow RFW to be used as make-up water for successive fracs. RFW, however, contains dissolved salts, suspended sediment and oils that may interfere with fracking fluids and/or clog fractures. This would lead to impaired well productivity. The major technical constraints to recycling RFW involves: identification of its composition, determination of industry standards for make-up water, and development of techniques to treat RFW to acceptable levels. If large scale RFW recycling becomes feasible, the industry will realize lower transportation and disposal costs, environmental conflicts, and risks of interruption in well development schedules.