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Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
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1

Downhole Techniques | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump to:52c8ff988c1DeringDolgeville,Massachusetts: EnergyKokamDownhole Techniques

2

Downhole drilling network using burst modulation techniques  

DOE Patents [OSTI]

A downhole drilling system is disclosed in one aspect of the present invention as including a drill string and a transmission line integrated into the drill string. Multiple network nodes are installed at selected intervals along the drill string and are adapted to communicate with one another through the transmission line. In order to efficiently allocate the available bandwidth, the network nodes are configured to use any of numerous burst modulation techniques to transmit data.

Hall; David R. (Provo, UT), Fox; Joe (Spanish Fork, UT)

2007-04-03T23:59:59.000Z

3

Harsh-Environment Solid-State Gamma Detector for Down-hole Gas and Oil Exploration  

SciTech Connect (OSTI)

The goal of this program was to develop a revolutionary solid-state gamma-ray detector suitable for use in down-hole gas and oil exploration. This advanced detector would employ wide-bandgap semiconductor technology to extend the gamma sensor's temperature capability up to 200 C as well as extended reliability, which significantly exceeds current designs based on photomultiplier tubes. In Phase II, project tasks were focused on optimization of the final APD design, growing and characterizing the full scintillator crystals of the selected composition, arranging the APD device packaging, developing the needed optical coupling between scintillator and APD, and characterizing the combined elements as a full detector system preparing for commercialization. What follows is a summary report from the second 18-month phase of this program.

Peter Sandvik; Stanislav Soloviev; Emad Andarawis; Ho-Young Cha; Jim Rose; Kevin Durocher; Robert Lyons; Bob Pieciuk; Jim Williams; David O'Connor

2007-08-10T23:59:59.000Z

4

The use of pattern recognition techniques in analyzing down-hole dynamometer cards  

E-Print Network [OSTI]

corners 12. Input matrix showing slight fluid pound 13. Modified reference matrix showing gray level values 14. Down-hole card showing differences in curvature 30 32 32 33 47 15. Reference shapes and input shape used in conventional string..., B. S. , Rensselaer Polytechnic Institute Chair of Advisory Committee: Dr. James W. Jennings In recent years, many companies have taken steps to automate the monitoring of their sucker rod pumped wells. In some cases, data transmission devices...

Dickinson, Roderick Raymond

2012-06-07T23:59:59.000Z

5

Innovative Exploration Techniques for Geothermal Assessment at...  

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

Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico Innovative Exploration Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico Innovative Exploration...

6

Downhole pulse tube refrigerators  

SciTech Connect (OSTI)

This report summarizes a preliminary design study to explore the plausibility of using pulse tube refrigeration to cool instruments in a hot down-hole environment. The original motivation was to maintain Dave Reagor`s high-temperature superconducting electronics at 75 K, but the study has evolved to include three target design criteria: cooling at 30 C in a 300 C environment, cooling at 75 K in a 50 C environment, cooling at both 75 K and 30 C in a 250 C environment. These specific temperatures were chosen arbitrarily, as representative of what is possible. The primary goals are low cost, reliability, and small package diameter. Pulse-tube refrigeration is a rapidly growing sub-field of cryogenic refrigeration. The pulse tube refrigerator has recently become the simplest, cheapest, most rugged and reliable low-power cryocooler. The authors expect this technology will be applicable downhole because of the ratio of hot to cold temperatures (in absolute units, such as Kelvin) of interest in deep drilling is comparable to the ratios routinely achieved with cryogenic pulse-tube refrigerators.

Swift, G.; Gardner, D. [Los Alamos National Lab., NM (United States). Condensed Matter and Thermal Physics Group

1997-12-01T23:59:59.000Z

7

Feasibility and Design Studies for a High Temperature Downhole Tool  

Broader source: Energy.gov [DOE]

Project objective: Perform feasibility and design studies for a high temperature downhole tool; which uses nuclear techniques for characterization purposes; using measurements and modeling/simulation.

8

Downhole telemetry system  

DOE Patents [OSTI]

A downhole telemetry system is described for optically communicating to the surface operating parameters of a drill bit during ongoing drilling operations. The downhole telemetry system includes sensors mounted with a drill bit for monitoring at least one operating parameter of the drill bit and generating a signal representative thereof. The downhole telemetry system includes means for transforming and optically communicating the signal to the surface as well as means at the surface for producing a visual display of the optically communicated operating parameters of the drill bit. 7 figs.

Normann, R.A.; Kadlec, E.R.

1994-11-08T23:59:59.000Z

9

Downhole telemetry system  

DOE Patents [OSTI]

A downhole telemetry system is described for optically communicating to the surface operating parameters of a drill bit during ongoing drilling operations. The downhole telemetry system includes sensors mounted with a drill bit for monitoring at least one operating parameter of the drill bit and generating a signal representative thereof. The downhole telemetry system includes means for transforming and optically communicating the signal to the surface as well as means at the surface for producing a visual display of the optically communicated operating parameters of the drill bit.

Normann, Randy A. (Albuquerque, NM); Kadlec, Emil R. (Albuquerque, NM)

1994-01-01T23:59:59.000Z

10

Downhole Data Transmission System  

DOE Patents [OSTI]

A system for transmitting data through a string of down-hole components. In accordance with one aspect, the system includes a plurality of downhole components, such as sections of pipe in a drill string. Each downhole component includes a pin end and a box end, with the pin end of one downhole component being adapted to be connected to the box end of another. Each pin end includes external threads and an internal pin face distal to the external threads. Each box end includes an internal shoulder face with internal threads distal to the internal shoulder face. The internal pin face and the internal shoulder face are aligned with and proximate each other when the pin end of the one component is threaded into a box end of the other component.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Fox, Joe (Spanish Fork, UT)

2004-04-06T23:59:59.000Z

11

Downhole steam quality measurement  

DOE Patents [OSTI]

An empirical method for the remote sensing of steam quality that can be easily adapted to downhole steam quality measurements by measuring the electrical properties of two-phase flow across electrode grids at low frequencies.

Lee, David O. (Albuquerque, NM); Montoya, Paul C. (Albuquerque, NM); Muir, James F. (Albuquerque, NM); Wayland, Jr., J. Robert (Albuquerque, NM)

1987-01-01T23:59:59.000Z

12

Harsh environments electronics : downhole applications.  

SciTech Connect (OSTI)

The development and operational sustainment of renewable (geothermal) and non-renewable (fossil fuel) energy resources will be accompanied by increasingly higher costs factors: exploration and site preparation, operational maintenance and repair. Increased government oversight in the wake of the Gulf oil spill will only add to the cost burden. It is important to understand that downhole conditions are not just about elevated temperatures. It is often construed that military electronics are exposed to the upper limit in terms of extreme service environments. Probably the harshest of all service conditions for electronics and electrical equipment are those in oil, gas, and geothermal wells. From the technology perspective, advanced materials, sensors, and microelectronics devices are benefificial to the exploration and sustainment of energy resources, especially in terms of lower costs. Besides the need for the science that creates these breakthroughs - there is also a need for sustained engineering development and testing. Downhole oil, gas, and geothermal well applications can have a wide range of environments and reliability requirements: Temperature, Pressure, Vibration, Corrosion, and Service duration. All too frequently, these conditions are not well-defifined because the application is labeled as 'high temperature'. This ambiguity is problematic when the investigation turns to new approaches for electronic packaging solutions. The objective is to develop harsh environment, electronic packaging that meets customer requirements of cost, performance, and reliability. There are a number of challenges: (1) Materials sets - solder alloys, substrate materials; (2) Manufacturing process - low to middle volumes, low defect counts, new equipment technologies; and (3) Reliability testing - requirements documents, test methods and modeling, relevant standards documents. The cost to develop and sustain renewable and non-renewable energy resources will continue to escalate within the industry. Downhole electronics can provide a very cost-effective approach for well exploration and sustainment (data logging). However, the harsh environments are a 'game-changer' in terms defining materials, assembly processes and the long-term reliability of downhole electronic systems. The system-level approach will enable the integration of each of these contributors - materials, processes, and reliability - in order to deliver cost-effective electronics that meet customer requirements.

Vianco, Paul Thomas

2011-03-01T23:59:59.000Z

13

Three phase downhole separator process  

DOE Patents [OSTI]

Three Phase Downhole Separator Process (TPDSP) is a process which results in the separation of all three phases, (1) oil, (2) gas, and (3) water, at the downhole location in the well bore, water disposal injection downhole, and oil and gas production uphole.

Cognata, Louis John (Baytown, TX)

2008-06-24T23:59:59.000Z

14

Downhole Fluid Analyzer Development  

SciTech Connect (OSTI)

A novel fiber optic downhole fluid analyzer has been developed for operation in production wells. This device will allow real-time determination of the oil, gas and water fractions of fluids from different zones in a multizone or multilateral completion environment. The device uses near infrared spectroscopy and induced fluorescence measurement to unambiguously determine the oil, water and gas concentrations at all but the highest water cuts. The only downhole components of the system are the fiber optic cable and windows. All of the active components--light sources, sensors, detection electronics and software--will be located at the surface, and will be able to operate multiple downhole probes. Laboratory testing has demonstrated that the sensor can accurately determine oil, water and gas fractions with a less than 5 percent standard error. Once installed in an intelligent completion, this sensor will give the operating company timely information about the fluids arising from various zones or multilaterals in a complex completion pattern, allowing informed decisions to be made on controlling production. The research and development tasks are discussed along with a market analysis.

Bill Turner

2006-11-28T23:59:59.000Z

15

Downhole steam injector  

DOE Patents [OSTI]

An improved downhole steam injector has an angled water orifice to swirl the water through the device for improved heat transfer before it is converted to steam. The injector also has a sloped diameter reduction in the steam chamber to throw water that collects along the side of the chamber during slant drilling into the flame for conversion to steam. In addition, the output of the flame chamber is beveled to reduce hot spots and increase efficiency, and the fuel-oxidant inputs are arranged to minimize coking.

Donaldson, A. Burl (Albuquerque, NM); Hoke, Donald E. (Albuquerque, NM)

1983-01-01T23:59:59.000Z

16

Innovative Exploration Techniques for Geothermal Assessment at...  

Open Energy Info (EERE)

determine the fracture surface area, heat content and heat transfer, flow rates, and chemistry of the geothermal fluids encountered by the exploration wells. - Write final report...

17

DOWNHOLE POWER GENERATION AND WIRELESS COMMUNICATIONS FOR INTELLIGENT COMPLETIONS APPLICATIONS  

SciTech Connect (OSTI)

The development work during this quarter was focused in the assembly of the downhole power generator hardware and its electronics module. The quarter was also spent in the development of the surface system electronics and software to extract the acoustic data transmitted from downhole to the surface from the noise generated by hydrocarbon flow in wells and to amplify very small acoustic signals to increase the distance between the downhole tool and the surface receiver. The tasks accomplished during this report period were: (1) Assembly of the downhole power generator mandrel for generation of electrical power due to flow in the wellbore. (2) Test the piezoelectric wafers to assure that they are performing properly prior to integrating them to the mechanical power generator mandrel. (3) Coat the power generator wafers to prevent water from shorting the power generator wafers. (4) Test of the power generator using a water tower and an electric pump to create a water flow loop. (5) Test the power harvesting electronics module. (6) Upgrade the signal condition and amplification from downhole into the surface system. (7) Upgrade the surface processing system capability to process data faster. (8) Create a new filtering technique to extract the signal from noise after the data from downhole is received at the surface system.

Paul Tubel

2004-02-01T23:59:59.000Z

18

Downhole steam quality measurement  

DOE Patents [OSTI]

The present invention relates to an empirical electrical method for remote sensing of steam quality utilizing flow-through grids which allow measurement of the electrical properties of a flowing two-phase mixture. The measurement of steam quality in the oil field is important to the efficient application of steam assisted recovery of oil. Because of the increased energy content in higher quality steam it is important to maintain the highest possible steam quality at the injection sandface. The effectiveness of a steaming operation without a measure of steam quality downhole close to the point of injection would be difficult to determine. Therefore, a need exists for the remote sensing of steam quality.

Lee, D.O.; Montoya, P.C.; Muir, J.F.; Wayland, J.R. Jr.

1985-06-19T23:59:59.000Z

19

Downhole hydraulic seismic generator  

DOE Patents [OSTI]

A downhole hydraulic seismic generator system for transmitting energy wave vibrations into earth strata surrounding a borehole. The system contains an elongated, unitary housing operably connected to a well head aboveground by support and electrical cabling, and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a hydraulic oscillator containing a double-actuating piston whose movement is controlled by an electro-servovalve regulating a high pressure hydraulic fluid flow into and out of upper and lower chambers surrounding the piston. The spent hydraulic fluid from the hydraulic oscillator is stored and pumped back into the system to provide high pressure fluid for conducting another run at the same, or a different location within the borehole.

Gregory, Danny L. (Corrales, NM); Hardee, Harry C. (Albuquerque, NM); Smallwood, David O. (Albuquerque, NM)

1992-01-01T23:59:59.000Z

20

Downhole Data Transmission System  

DOE Patents [OSTI]

A system for transmitting data through a string of downhole components. In one aspect, the system includes first and second magnetically conductive, electrically insulating elements at both ends of the component. Each element includes a first U-shaped trough with a bottom, first and second sides and an opening between the two sides. Electrically conducting coils are located in each trough. An electrical conductor connects the coils in each component. In operation, a varying current applied to a first coil in one component generates a varying magnetic field in the first magnetically conductive, electrically insulating element, which varying magnetic field is conducted to and thereby produces a varying magnetic field in the second magnetically conductive, electrically insulating element of a connected component, which magnetic field thereby generates a varying electrical current in the second coil in the connected component.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Fox, Joe (Spanish Fork, UT)

2003-12-30T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Neutron Imaging Explored as Complementary Technique for Improving...  

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

Neutron Imaging Explored as Complementary Technique for Improving Cancer Detection August 05, 2013 Researcher Maria Cekanova analyzes the neutron radiographs of a canine breast...

22

Template:ExplorationTechnique | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-gTaguspark Jump to: navigation,Telluric SurveyCite Jump

23

Downhole tool adapted for telemetry  

DOE Patents [OSTI]

A cycleable downhole tool such as a Jar, a hydraulic hammer, and a shock absorber adapted for telemetry. This invention applies to other tools where the active components of the tool are displaced when the tool is rotationally or translationally cycled. The invention consists of inductive or contact transmission rings that are connected by an extensible conductor. The extensible conductor permits the transmission of the signal before, after, and during the cycling of the tool. The signal may be continuous or intermittent during cycling. The invention also applies to downhole tools that do not cycle, but in operation are under such stress that an extensible conductor is beneficial. The extensible conductor may also consist of an extensible portion and a fixed portion. The extensible conductor also features clamps that maintain the conductor under stresses greater than that seen by the tool, and seals that are capable of protecting against downhole pressure and contamination.

Hall, David R. (Provo, UT); Fox, Joe (Provo, UT)

2010-12-14T23:59:59.000Z

24

Transducer for downhole drilling components  

DOE Patents [OSTI]

A robust transmission element for transmitting information between downhole tools, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The transmission element maintains reliable connectivity between transmission elements, thereby providing an uninterrupted flow of information between drill string components. A transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe. The transmission element may include an annular housing forming a trough, an electrical conductor disposed within the trough, and an MCEI material disposed between the annular housing and the electrical conductor.

Hall, David R; Fox, Joe R

2006-05-30T23:59:59.000Z

25

DOWNHOLE ENTHALPY MEASUREMENT IN GEOTHERMAL  

E-Print Network [OSTI]

SGP-TR-186 DOWNHOLE ENTHALPY MEASUREMENT IN GEOTHERMAL WELLS WITH FIBER OPTICS Nilufer Atalay June 2008 Financial support was provided through the Stanford Geothermal Program under Idaho National University Stanford Geothermal Program Interdisciplinary Research in Engineering and Earth Sciences STANFORD

Stanford University

26

Downhole steam generator having a downhole oxidant compressor  

DOE Patents [OSTI]

Am improved apparatus is described for the downhole injection of steam into boreholes, for tertiary oil recovery. It includes an oxidant supply, a fuel supply, an igniter, a water supply, an oxidant compressor, and a combustor assembly. The apparatus is designed for efficiency, preheating of the water, and cooling of the combustion chamber walls. The steam outlet to the borehole is provided with pressure-responsive doors for closing the outlet in response to flameout. (DLC)

Fox, R.L.

1981-01-07T23:59:59.000Z

27

Signal connection for a downhole tool string  

DOE Patents [OSTI]

A signal transmission connection for a tool string used in exploration and production of natural resources, namely: oil, gas, and geothermal energy resources. The connection comprises first and second annular elements deployed in cooperative association with each other. The respective elements comprise inductive transducers that are capable of two-way signal transmission between each other, with downhole components of the tool string, and with ground-level equipment. The respective inductive transducers comprise one or more conductive loops housed within ferrite troughs, or within ferrite trough segments. When energized, the conductive loops produce a magnetic field suitable for transmitting the signal. The second element may be rotational in drilling applications. The respective elements may be fitted with electronic equipment to aid and manipulate the transmission of the signal. The first element may also be in communication with the World Wide Web.

Hall, David R.; Hall Jr., H. Tracy; Pixton, David S.; Bradford, Kline; Fox, Joe; Briscoe, Michael

2006-08-29T23:59:59.000Z

28

Downhole probes evaluate cavern integrity  

SciTech Connect (OSTI)

Obtaining natural-gas storage caverns` pressures and temperatures with downhole probes has allowed TransGas Ltd., Regina, to monitor and evaluate cavern integrity. TransGas has more than 5 years` experience with the devices. The acquired data have also helped determine gas-in-place inventory and confirm and assess changes in spatial volumes. These changes may have resulted from cavern creep (shrinkage or closure) or downhole abnormality such as fluid infill or collapse of the side walls or roof. This first of two articles presents background and many of the details and lessons to date of TransGas` cavern gas-storage probe program; the conclusion describes a specific storage site with some results.

Crossley, N.G. [TransGas Ltd., Regina, Saskatchewan (Canada)

1997-03-03T23:59:59.000Z

29

Advanced downhole periodic seismic generator  

DOE Patents [OSTI]

An advanced downhole periodic seismic generator system for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head by support and electrical cabling and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.

Hardee, Harry C. (Albuquerque, NM); Hills, Richard G. (Las Cruces, NM); Striker, Richard P. (Albuquerque, NM)

1991-07-16T23:59:59.000Z

30

Corrosion reference for geothermal downhole materials selection  

SciTech Connect (OSTI)

Geothermal downhole conditions that may affect the performance and reliability of selected materials and components used in the drilling, completion, logging, and production of geothermal wells are reviewed. The results of specific research and development efforts aimed at improvement of materials and components for downhole contact with the hostile physicochemical conditions of the geothermal reservoir are discussed. Materials and components covered are tubular goods, stainless steels and non-ferrous metals for high-temperature downhole service, cements for high-temperature geothermal wells, high-temperature elastomers, drilling and completion tools, logging tools, and downhole pumps. (MHR)

Ellis, P.F. II, Smith, C.C.; Keeney, R.C.; Kirk, D.K.; Conover, M.F.

1983-03-01T23:59:59.000Z

31

Downhole material injector for lost circulation control  

DOE Patents [OSTI]

This invention is comprised of an apparatus and method for simultaneously and separately emplacing two streams of different materials through a drillstring in a borehole to a downhole location for lost circulation control. The two streams are mixed outside the drillstring at the desired downhole location and harden only after mixing for control of a lost circulation zone.

Glowka, D.A.

1991-01-01T23:59:59.000Z

32

Downhole material injector for lost circulation control  

DOE Patents [OSTI]

Apparatus and method are disclosed for simultaneously and separately emplacing two streams of different materials through a drill string in a borehole to a downhole location for lost circulation control. The two streams are mixed outside the drill string at the desired downhole location and harden only after mixing for control of a lost circulation zone. 6 figs.

Glowka, D.A.

1994-09-06T23:59:59.000Z

33

Downhole steam generator having a downhole oxidant compressor  

DOE Patents [OSTI]

Apparatus and method for generation of steam in a borehole for penetration into an earth formation wherein a downhole oxidant compressor is used to compress relatively low pressure (atmospheric) oxidant, such as air, to a relatively high pressure prior to mixing with fuel for combustion. The multi-stage compressor receives motive power through a shaft driven by a gas turbine powered by the hot expanding combustion gases. The main flow of compressed oxidant passes through a velocity increasing nozzle formed by a reduced central section of the compressor housing. An oxidant bypass feedpipe leading to peripheral oxidant injection nozzles of the combustion chamber are also provided. The downhole compressor allows effective steam generation in deep wells without need for high pressure surface compressors. Feedback preheater means are provided for preheating fuel in a preheat chamber. Preheating of the water occurs in both a water feed line running from aboveground and in a countercurrent water flow channel surrounding the combustor assembly. The countercurrent water flow channels advantageously serve to cool the combustion chamber wall. The water is injected through slotted inlets along the combustion chamber wall to provide an unstable boundary layer and stripping of the water from the wall for efficient steam generation. Pressure responsive doors are provided at the steam outlet for closing and sealing the combustion chamber from entry of reservoir fluids in the event of a flameout.

Fox, Ronald L. (Albuquerque, NM)

1983-01-01T23:59:59.000Z

34

Insights from the downhole dynamometer database  

SciTech Connect (OSTI)

The Downhole Dynamometer Database is a compilation of test data collected with a set of five downhole tools built by Albert Engineering under contract to Sandia National Laboratories. The downhole dynamometer tools are memory tools deployed in the sucker rod string with sensors to measure pressure, temperature, load, and acceleration. The acceleration data is processed to yield position, so that a load vs. position dynagraph can be generated using data collected downhole. With five tools in the hole at one time, all measured data and computed dynagraphs from five different positions in the rod string are available. The purpose of the Database is to provide industry with a complete and high quality measurement of downhole sucker rod pumping dynamics. To facilitate use of the database, Sandia has developed a Microsoft Windows-based interface that functions as a visualizer and browser to the more than 40 MBytes of data. The interface also includes a data export feature to allow users to extract data from the database for use in their own programs. Following a brief description of the downhole dynamometer tools, data collection program, and database content, this paper will illustrate a few of the interesting and unique insights gained from the downhole data.

Waggoner, J.R.

1997-03-01T23:59:59.000Z

35

Development of the downhole dynamometer database  

SciTech Connect (OSTI)

The Downhole Dynamometer Database is a compilation of test data collected with a set of five downhole tools built by Albert Engineering under contract to Sandia National Laboratories. The downhole dynamometer tools are memory tools deployed in the sucker rod string with sensors to measure pressure, temperature, load, and acceleration. The acceleration data is processed to yield position, so that a load vs. position dynagraph can be generated using data collected downhole. With five tools in the hole at one time, all measured data and computed dynagraphs from five different positions in the rod string are available. The purpose of the Database is to provide industry with a complete and high quality measurement of downhole sucker rod pumping dynamics. To facilitate use of the database, Sandia has developed a Microsoft Windows-based interface that functions as a visualizer and browser to the more than 40 MBytes of data. The interface also includes a data export feature to allow users to extract data from the database for use in their own programs. This paper includes a description of the downhole dynamometer tools, data collection program, database content, and a few illustrations of the data contained in the downhole dynamometer database.

Waggoner, J.R.; Mansure, A.

1997-02-01T23:59:59.000Z

36

Category:Downhole Techniques | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarreis aCallahanWind Farm JumpBLM)Development Drilling page?

37

Downhole vibration sensing by vibration energy harvesting  

E-Print Network [OSTI]

This thesis outlines the design of a prototype electromagnetic induction vibration energy harvesting device for use in a downhole environment. First order models of the necessary components for a generic vibration energy ...

Trimble, A. Zachary

2007-01-01T23:59:59.000Z

38

275 C Downhole Microcomputer System  

SciTech Connect (OSTI)

An HC11 controller IC and along with serial SRAM and ROM support ICs chip set were developed to support a data acquisition and control for extreme temperature/harsh environment conditions greater than 275 C. The 68HC11 microprocessor is widely used in well logging tools for control, data acquisition, and signal processing applications and was the logical choice for a downhole controller. This extreme temperature version of the 68HC11 enables new high temperature designs and additionally allows 68HC11-based well logging tools and MWD tools to be upgraded for high temperature operation in deep gas reservoirs, The microcomputer chip consists of the microprocessor ALU, a small boot ROM, 4 kbyte data RAM, counter/timer unit, serial peripheral interface (SPI), asynchronous serial interface (SCI), and the A, B, C, and D parallel ports. The chip is code compatible with the single chip mode commercial 68HC11 except for the absence of the analog to digital converter system. To avoid mask programmed internal ROM, a boot program is used to load the microcomputer program from an external mask SPI ROM. A SPI RAM IC completes the chip set and allows data RAM to be added in 4 kbyte increments. The HC11 controller IC chip set is implemented in the Peregrine Semiconductor 0.5 micron Silicon-on-Sapphire (SOS) process using a custom high temperature cell library developed at Oklahoma State University. Yield data is presented for all, the HC11, SPI-RAM and ROM. The lessons learned in this project were extended to the successful development of two high temperature versions of the LEON3 and a companion 8 Kbyte SRAM, a 200 C version for the Navy and a 275 C version for the gas industry.

Chris Hutchens; Hooi Miin Soo

2008-08-31T23:59:59.000Z

39

Loaded transducer for downhole drilling components  

DOE Patents [OSTI]

A robust transmission element for transmitting information between downhole tools, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The transmission element maintains reliable connectivity between transmission elements, thereby providing an uninterrupted flow of information between drill string components. A transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe. To close gaps present between transmission elements, transmission elements may be biased with a "spring force, urging them closer together."

Hall, David R.; Hall Jr., H. Tracy; Pixton, David S.; Briscoe, Michael A.; Dahlgren, Scott Steven; Fox, Joe; Sneddon, Cameron

2006-02-21T23:59:59.000Z

40

Loaded Transducer Fpr Downhole Drilling Component  

DOE Patents [OSTI]

A robust transmission element for transmitting information between downhole tools, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The transmission element maintains reliable connectivity between transmission elements, thereby providing an uninterrupted flow of information between drill string components. A transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe. To close gaps present between transmission elements, transmission elements may be biased with a "spring force," urging them closer together.

Hall, David R. (Provo, UT); Hall, H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT); Fox, Joe (Spanish Fork, UT)

2005-07-05T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

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

SciTech Connect (OSTI)

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

Thomas Chidsey

2008-09-30T23:59:59.000Z

42

Expandable Metal Liner For Downhole Components  

DOE Patents [OSTI]

A liner for an annular downhole component is comprised of an expandable metal tube having indentations along its surface. The indentations are formed in the wall of the tube either by drawing the tube through a die, by hydroforming, by stamping, or roll forming and may extend axially, radially, or spirally along its wall. The indentations accommodate radial and axial expansion of the tube within the downhole component. The tube is inserted into the annular component and deformed to match an inside surface of the component. The tube may be expanded using a hydroforming process or by drawing a mandrel through the tube. The tube may be expanded in such a manner so as to place it in compression against the inside wall of the component. The tube is useful for improving component hydraulics, shielding components from contamination, inhibiting corrosion, and preventing wear to the downhole component during use. It may also be useful for positioning conduit and insulated conductors within the component. An insulating material may be disposed between the tube and the component in order to prevent galvanic corrosion of the downhole component.

Hall, David R. (Provo, UT); Fox, Joe R. (Provo, UT)

2004-10-05T23:59:59.000Z

43

Remote down-hole well telemetry  

DOE Patents [OSTI]

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.

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

44

Directional drilling techniques for exploration in-advance of mining  

SciTech Connect (OSTI)

In-seam directionally drilled horizontal boreholes have provided effective solutions in underground coal mines for methane and water drainage and inherently provide an excellent tool for coalbed exploration. Directionally drilled methane drainage boreholes have identified rapid changes in coalbed elevation, coalbed thickness and faults. Specific directional drilling and coring procedures for exploration in-advance of mining are reviewed in this paper, and also other directional drilling applications including in-mine horizontal gob ventilation boreholes, identification of abandoned workings, and water drainage boreholes.

Kravits, S.J.; Schwoebel, J.J. (REI Underground Exploration Inc., Salt Lake City, UT (United States))

1994-01-01T23:59:59.000Z

45

Property:ExplorationParentTechnique | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to: navigation, searchEstimatedTimeMedianExplorationNotes

46

DOWNHOLE POWER GENERATION AND WIRELESS COMMUNICATIONS FOR INTELLIGENT COMPLETIONS APPLICATIONS  

SciTech Connect (OSTI)

The first quarter of the Downhole Power Generation and Wireless Communications for Intelligent Completions Applications was characterized by the evaluation and determination of the specifications required for the development of the system for permanent applications in wellbores to the optimization of hydrocarbon production. The system will monitor and transmit in real time pressure and temperature information from downhole using the production tubing as the medium for the transmission of the acoustic waves carrying digital information. The most common casing and tubing sizes were determined by interfacing with the major oil companies to obtain information related to their wells. The conceptual design was created for both the wireless gauge section of the tool as well as the power generation module. All hardware for the wireless gauge will be placed in an atmospheric pressure chamber located on the outside of a production tubing with 11.4 centimeter (4-1/2 inch) diameter. This mounting technique will reduce cost as well as the diameter and length of the tool and increase the reliability of the system. The power generator will use piezoelectric wafers to generate electricity based on the flow of hydrocarbons through an area in the wellbore where the tool will be deployed. The goal of the project is to create 1 Watt of power continuously.

Paul Tubel

2003-03-24T23:59:59.000Z

47

Polished Downhole Transducer Having Improved Signal Coupling  

DOE Patents [OSTI]

Apparatus and methods to improve signal coupling in downhole inductive transmission elements to reduce the dispersion of magnetic energy at the tool joints and to provide consistent impedance and contact between transmission elements located along the drill string. A transmission element for transmitting information between downhole tools is disclosed in one embodiment of the invention as including an annular core constructed of a magnetically conductive material. The annular core forms an open channel around its circumference and is configured to form a closed channel by mating with a corresponding annular core along an annular mating surface. The mating surface is polished to provide improved magnetic coupling with the corresponding annular core. An annular conductor is disposed within the open channel.

Hall, David R. (Provo, UT); Fox, Joe (Spanish Fork, UT)

2006-03-28T23:59:59.000Z

48

Downhole transmission system comprising a coaxial capacitor  

DOE Patents [OSTI]

A transmission system in a downhole component comprises a plurality of data transmission elements. A coaxial cable having an inner conductor and an outer conductor is disposed within a passage in the downhole component such that at least one capacitor is disposed in the passage and having a first terminal coupled to the inner conductor and a second terminal coupled to the outer conductor. Preferably the transmission element comprises an electrically conducting coil. Preferably, within the passage a connector is adapted to electrically connect the inner conductor of the coaxial cable and the lead wire. The coaxial capacitor may be disposed between and in electrically communication with the connector and the passage. In another embodiment a connector is adapted to electrical connect a first and a second portion of the inner conductor of the coaxial cable and a coaxial capacitor is in electrical communication with the connector and the passage.

Hall, David R. (Provo, UT); Pixton, David S. (Lehi, UT); Johnson, Monte L. (Orem, UT); Bartholomew, David B. (Springville, UT); Hall, Jr., H. Tracy (Provo, UT); Rawle, Michael (Springville, UT)

2011-05-24T23:59:59.000Z

49

Data transmission element for downhole drilling components  

DOE Patents [OSTI]

A robust data transmission element for transmitting information between downhole components, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The data transmission element components include a generally U-shaped annular housing, a generally U-shaped magnetically conductive, electrically insulating element such as ferrite, and an insulated conductor. Features on the magnetically conducting, electrically insulating element and the annular housing create a pocket when assembled. The data transmission element is filled with a polymer to retain the components within the annular housing by filling the pocket with the polymer. The polymer can bond with the annular housing and the insulated conductor but preferably not the magnetically conductive, electrically insulating element. A data transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Dahlgren, Scott (Provo, UT); Fox, Joe (Spanish Fork, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT)

2006-01-31T23:59:59.000Z

50

Method and apparatus of assessing down-hole drilling conditions  

DOE Patents [OSTI]

A method and apparatus for use in assessing down-hole drilling conditions are disclosed. The apparatus includes a drill string, a plurality of sensors, a computing device, and a down-hole network. The sensors are distributed along the length of the drill string and are capable of sensing localized down-hole conditions while drilling. The computing device is coupled to at least one sensor of the plurality of sensors. The data is transmitted from the sensors to the computing device over the down-hole network. The computing device analyzes data output by the sensors and representative of the sensed localized conditions to assess the down-hole drilling conditions. The method includes sensing localized drilling conditions at a plurality of points distributed along the length of a drill string during drilling operations; transmitting data representative of the sensed localized conditions to a predetermined location; and analyzing the transmitted data to assess the down-hole drilling conditions.

Hall, David R. (Provo, UT); Pixton, David S. (Lehl, UT); Johnson, Monte L. (Orem, UT); Bartholomew, David B. (Springville, UT); Fox, Joe (Spanish Fork, UT)

2007-04-24T23:59:59.000Z

51

Low pressure combustor for generating steam downhole  

SciTech Connect (OSTI)

A compact catalytic combustor for generating steam downhole in an oil reservoir has steam generating tubes that are attached to a metal catalyst support. The metal support comprises sheets of metal that are spaced apart and transverse to the tubes. Heat from combustion is generated on the metal sheets and is conducted to the steam generating tubes. The steam is injected into the oil reservoir. The combustion gas is vented to ground level.

Retallick, W.B.

1983-03-22T23:59:59.000Z

52

Downhole pipe selection for acoustic telemetry  

DOE Patents [OSTI]

A system is described for transmitting signals along a downhole string including a plurality of serially connected tubular pipes such as drill or production pipes, a transmitter for transmitting a signal along the string and a receiver for receiving the signal placed along the string at a location spaced from said transmitting means, wherein the pipes between the transmitter and the receiver are ordered according to length of tube to minimize loss of signal from said transmitter to said receiver. 7 figs.

Drumheller, D.S.

1995-12-19T23:59:59.000Z

53

High-Temperature Motor Windings for Downhole Pumps Used in Geothermal...  

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

High-Temperature Motor Windings for Downhole Pumps Used in Geothermal Energy Production High-Temperature Motor Windings for Downhole Pumps Used in Geothermal Energy Production...

54

Between automation and exploration: SAS graphing techniques for visualization of survey data  

E-Print Network [OSTI]

Between automation and exploration: SAS graphing techniques for visualization of survey data Chong of survey data. There is always a tension between automation and exploration. Automation is a common to automate the graphing processes via SAS/Macros and SAS/Graph. However, hidden patterns of the data may

Yu, Alex

55

DOWNHOLE VIBRATION MONITORING & CONTROL SYSTEM  

SciTech Connect (OSTI)

The objective of this program is to develop a system to both monitor the vibration of a bottomhole assembly, and to adjust the properties of an active damper in response to these measured vibrations. Phase I of this program, which entailed modeling and design of the necessary subsystems and design, manufacture and test of a full laboratory prototype, was completed on May 31, 2004. The principal objectives of Phase II were: more extensive laboratory testing, including the evaluation of different feedback algorithms for control of the damper; design and manufacture of a field prototype system; and, testing of the field prototype in drilling laboratories and test wells. Phase II concluded on January 31, 2006, and the final report was issued. Work on Phase III of the project began during the previous quarter. Efforts this quarter have focused on the manufacture of the prototype and precommercial parts, field test planning and commercialization. The current extreme lead times quoted by oilfield machine shops for collar components, will delay the deployment of the field prototypes. The delivery date for five critical parts from one supplier has slipped to late November, which will preclude deployment for a field test before late December or early January. We are exploring whether we can take the partially made parts and complete them earlier in our own shop.

Martin E. Cobern

2006-09-30T23:59:59.000Z

56

Downhole delay assembly for blasting with series delay  

DOE Patents [OSTI]

A downhole delay assembly is provided which can be placed into a blasthole for initiation of explosive in the blasthole. The downhole delay assembly includes at least two detonating time delay devices in series in order to effect a time delay of longer than about 200 milliseconds in a round of explosions. The downhole delay assembly provides a protective housing to prevent detonation of explosive in the blasthole in response to the detonation of the first detonating time delay device. There is further provided a connection between the first and second time delay devices. The connection is responsive to the detonation of the first detonating time delay device and initiates the second detonating time delay device. A plurality of such downhole delay assemblies are placed downhole in unfragmented formation and are initiated simultaneously for providing a round of explosive expansions. The explosive expansions can be used to form an in situ oil shale retort containing a fragmented permeable mass of formation particles.

Ricketts, Thomas E. (Grand Junction, CO)

1982-01-01T23:59:59.000Z

57

Data Transmission System For A Downhole Component  

DOE Patents [OSTI]

The invention is a system for transmitting data through a string of downhole components. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string. Each component has a first and second end, with a first communication element located at the first end and a second communication element located at the second end. Each communication element includes a first contact and a second contact. The system also includes a coaxial cable running between the first and second communication elements, the coaxial cable having a conductive tube and a conductive core within it. The system also includes a first and second connector for connecting the first and second communication elements respectively to the coaxial cable. Each connector includes a conductive sleeve, lying concentrically within the conductive tube, which fits around and makes electrical contact with the conductive core. The conductive sleeve is electrically isolated from the conductive tube. The conductive sleeve of the first connector is in electrical contact with the first contact of the first communication element, the conductive sleeve of the second connector is in electrical contact with the first contact of the second communication element, and the conductive tube is in electrical contact with both the second contact of the first communication element and the second contact of the second communication element.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Fox, Joe (Spanish Fork, UT); Briscoe, Michael (Lehi, UT)

2005-01-18T23:59:59.000Z

58

Harsh-Environment Packaging for Downhole Gas and Oil Exploration  

SciTech Connect (OSTI)

This research into new packaging materials and methods for elevated temperatures and harsh environment electronics focused on gaining a basic understanding of current state-of-the-art in electronics packaging used in industry today, formulating the thermal-mechanical models of the material interactions and developing test structures to confirm these models. Discussions were initiated with the major General Electric (GE) businesses that currently sell into markets requiring high temperature electronics and packaging. They related the major modes of failure they encounter routinely and the hurdles needed to be overcome in order to improve the temperature specifications of these products. We consulted with our GE business partners about the reliability specifications and investigated specifications and guidelines that from IPC and the SAE body that is currently developing guidelines for electronics package reliability. Following this, a risk analysis was conducted for the program to identify the critical risks which need to be mitigated in order to demonstrate a flex-based packaging approach under these conditions. This process identified metal/polyimide adhesion, via reliability for flex substrates and high temperature interconnect as important technical areas for reliability improvement.

Shubhra Bansal; Junghyun Cho; Kevin Durocher; Chris Kapusta; Aaron Knobloch; David Shaddock; Harry Schoeller; Hua Xia

2007-08-31T23:59:59.000Z

59

Continuous chain bit with downhole cycling capability  

DOE Patents [OSTI]

A continuous chain bit for hard rock drilling is capable of downhole cycling. A drill head assembly moves axially relative to a support body while the chain on the head assembly is held in position so that the bodily movement of the chain cycles the chain to present new composite links for drilling. A pair of spring fingers on opposite sides of the chain hold the chain against movement. The chain is held in tension by a spring-biased tensioning bar. A head at the working end of the chain supports the working links. The chain is centered by a reversing pawl and piston actuated by the pressure of the drilling mud. Detent pins lock the head assembly with respect to the support body and are also operated by the drilling mud pressure. A restricted nozzle with a divergent outlet sprays drilling mud into the cavity to remove debris. Indication of the centered position of the chain is provided by noting a low pressure reading indicating proper alignment of drilling mud slots on the links with the corresponding feed branches.

Ritter, Don F. (Albuquerque, NM); St. Clair, Jack A. (Albuquerque, NM); Togami, Henry K. (Albuquerque, NM)

1983-01-01T23:59:59.000Z

60

Detection of water or gas entry into horizontal wells by using permanent downhole monitoring systems  

E-Print Network [OSTI]

distributed temperature sensors (DTS) in intelligent completions. Analyzing such changes will potentially aid the diagnosis of downhole flow conditions. In vertical wells, temperature logs have been used successfully to diagnose the downhole flow conditions...

Yoshioka, Keita

2007-09-17T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Static downhole characteristics of well CGEH-1 at Coso Hot Springs...  

Open Energy Info (EERE)

downhole characteristics of well CGEH-1 at Coso Hot Springs, China Lake, California Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Static downhole...

62

Downhole Vibration Monitoring and Control System  

SciTech Connect (OSTI)

The objective of this program is to develop a system to both monitor the vibration of a bottomhole assembly, and to adjust the properties of an active damper in response to these measured vibrations. The key feature of this system is its use of a magnetorheological fluid (MRF) to allow the damping coefficient to be changed extensively, rapidly and reversibly without the use of mechanical valves, but only by the application of a current. Phase I of this program, which entailed modeling and design of the necessary subsystems and design, manufacture and test of a full laboratory prototype, was completed on May 31, 2004. Much of the effort was devoted to the design and testing of the MRF damper, itself. The principal objectives of Phase II were: more extensive laboratory testing, including the evaluation of different feedback algorithms for control of the damper; design and manufacture of a field prototype system; and, testing of the field prototype in a drilling laboratory. Phase II concluded on January 31, 2006, and a final report was issued. Work on Phase III of the project began during the first quarter, 2006, with the objectives of building precommercial prototypes, testing them in a drilling laboratory and the field; developing and implementing a commercialization plan. All of these have been accomplished. The Downhole Vibration Monitoring & Control System (DVMCS) prototypes have been successfully proven in testing at the TerraTek drilling facility and at the Rocky Mountain Oilfield Test Center (RMOTC.) Based on the results of these tests, we have signed a definitive development and distribution agreement with Smith, and commercial deployment is underway. This current version of the DVMCS monitors and controls axial vibrations. Due to time and budget constraints of this program, it was not possible to complete a system that would also deal with lateral and torsional (stick-slip) vibrations as originally planned; however, this effort is continuing without DOE funding.

Martin E. Cobern

2007-09-30T23:59:59.000Z

63

RUBBER BEARINGS FOR DOWN-HOLE PUMPS  

SciTech Connect (OSTI)

Synopsis of project activity: 1998--Awarded cost share grant from DOE. 1st Qtr 1999--Developed fail safe lubricating system. 2nd Qtr 1999--Performed first large scale test with nitrile based bearings. It failed due to material swelling. Failure was blamed on improper tolerance. 3rd Qtr 1999--Material tests were performed with autoclaves and exposure tests to Casa Diablo fluids. Testing of Viton materials began. Alternate bearing designs were developed to limit risk of improper tolerances. 4th Qtr 1999--Site testing indicated a chemical attack on the bearing material caused the test failure and not improper bearing tolerance. 1st Qtr 2000--The assistance of Brookhaven National Laboratory was obtained in evaluating the chemical attack. The National Laboratory also began more elaborate laboratory testing on bearing materials. 2nd Qtr 2000--Testing indicated Viton was an inappropriate material due to degradation in Casa Diablo fluid. Testing of EPDM began. 3rd Qtr 2001--EPDM bearings were installed for another large scale test. Bearings failed again due to swelling. Further testing indicated that larger then expected oil concentrations existed in lubricating water geothermal fluid causing bearing failure. 2002-2003--Searched for and tested several materials that would survive in hot salt and oil solutions. Kalrez{reg_sign}, Viton{reg_sign}ETP 500 and Viton{reg_sign}GF were identified as possible candidates. 2003-2005--Kalrez{reg_sign}has shown superior resistance to downhole conditions at Casa Diablo from among the various materials tested. Viton ETP-500 indicated a life expectancy of 13 years and because it is significantly less expensive then Kalrez{reg_sign}, it was selected as the bearing material for future testing. Unfortunately during the laboratory testing period Dupont Chemical chose to stop manufacturing this specific formulation and replaced it with Viton ETP 600S. The material is available with six different fillers; three based on zinc oxide and three based on silicon oxide. Samples of all six materials have been obtained and are being tested at the National Laboratory in Brookhaven, New York. This new material's properties as a bearing material and its ability to adhere to a bearings shell must be reviewed, but cost information deemed the material to be too expensive to be economical.

Bob Sullivan Mammoth Pacific, L.P.

2005-09-07T23:59:59.000Z

64

Downhole steam generator with improved preheating, combustion, and protection features  

DOE Patents [OSTI]

For tertiary oil recovery, a downhole steam generator is designed which provides for efficient counterflow cooling of the combustion chamber walls and preheating of the fuel and water. Pressure-responsive doors are provided for closing and opening the outlet in response to flameout, thereby preventing flooding of the combustion chamber. (DLC)

Fox, R.L.

1981-01-07T23:59:59.000Z

65

Explorations of Space-Charge Limits in Parallel-Plate Diodes and Associated Techniques for Automation  

E-Print Network [OSTI]

and Associated Techniques for Automation by Benjamin Ragan-and Associated Techniques for Automation Copyright 2013 byand Associated Techniques for Automation by Benjamin Ragan-

Ragan-Kelley, Benjamin

2013-01-01T23:59:59.000Z

66

System for loading executable code into volatile memory in a downhole tool  

DOE Patents [OSTI]

A system for loading an executable code into volatile memory in a downhole tool string component comprises a surface control unit comprising executable code. An integrated downhole network comprises data transmission elements in communication with the surface control unit and the volatile memory. The executable code, stored in the surface control unit, is not permanently stored in the downhole tool string component. In a preferred embodiment of the present invention, the downhole tool string component comprises boot memory. In another embodiment, the executable code is an operating system executable code. Preferably, the volatile memory comprises random access memory (RAM). A method for loading executable code to volatile memory in a downhole tool string component comprises sending the code from the surface control unit to a processor in the downhole tool string component over the network. A central processing unit writes the executable code in the volatile memory.

Hall, David R. (Provo, UT); Bartholomew, David B. (Springville, UT); Johnson, Monte L. (Orem, UT)

2007-09-25T23:59:59.000Z

67

Use of Downhole Motors in Geothermal Drilling in the Philippines  

SciTech Connect (OSTI)

This paper describes the use of downhole motors in the Tiwi geothermal field in the Philippines, The discussion includes the application Of a Dyna-Drill with insert-type bits for drilling through surface alluvium. The economics of this type of drilling are compared to those of conventional rotary drilling. The paper also describes the use of a turbodrill that drills out scale as the well produces geothermal fluids.

Pyle, D. E.

1981-01-01T23:59:59.000Z

68

New Geophysical Technique for Mineral Exploration and Mineral Discrimination Based on Electromagnetic Methods  

SciTech Connect (OSTI)

The research during the first year of the project was focused on developing the foundations of a new geophysical technique for mineral exploration and mineral discrimination, based on electromagnetic (EM) methods. The proposed new technique is based on examining the spectral induced polarization effects in electromagnetic data using modern distributed acquisition systems and advanced methods of 3-D inversion. The analysis of IP phenomena is usually based on models with frequency dependent complex conductivity distribution. One of the most popular is the Cole-Cole relaxation model. In this progress report we have constructed and analyzed a different physical and mathematical model of the IP effect based on the effective-medium theory. We have developed a rigorous mathematical model of multi-phase conductive media, which can provide a quantitative tool for evaluation of the type of mineralization, using the conductivity relaxation model parameters. The parameters of the new conductivity relaxation model can be used for discrimination of the different types of rock formations, which is an important goal in mineral exploration. The solution of this problem requires development of an effective numerical method for EM forward modeling in 3-D inhomogeneous media. During the first year of the project we have developed a prototype 3-D IP modeling algorithm using the integral equation (IP) method. Our IE forward modeling code INTEM3DIP is based on the contraction IE method, which improves the convergence rate of the iterative solvers. This code can handle various types of sources and receivers to compute the effect of a complex resistivity model. We have tested the working version of the INTEM3DIP code for computer simulation of the IP data for several models including a southwest US porphyry model and a Kambalda-style nickel sulfide deposit. The numerical modeling study clearly demonstrates how the various complex resistivity models manifest differently in the observed EM data. These modeling studies lay a background for future development of the IP inversion method, directed at determining the electrical conductivity and the intrinsic chargeability distributions, as well as the other parameters of the relaxation model simultaneously. The new technology envisioned in this proposal, will be used for the discrimination of different rocks, and in this way will provide an ability to distinguish between uneconomic mineral deposits and the location of zones of economic mineralization and geothermal resources.

Michael S. Zhdanov

2005-03-09T23:59:59.000Z

69

High-Temperature Motor Windings for Downhole Pumps Used in Geothermal...  

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

and Other Harsh Environments High-Temperature Motor Windings for Downhole Pumps Used in Geothermal Energy Production Matthew Hooker Composite Technology Development, Inc....

70

New Geophysical Technique for Mineral Exploration and Mineral Discrimination Based on Electromagnetic Methods  

SciTech Connect (OSTI)

The research during the first two years of the project was focused on developing the foundations of a new geophysical technique for mineral exploration and mineral discrimination, based on electromagnetic (EM) methods. The developed new technique is based on examining the spectral induced polarization effects in electromagnetic data using effective-medium theory and advanced methods of 3-D modeling and inversion. The analysis of IP phenomena is usually based on models with frequency dependent complex conductivity distribution. In this project, we have developed a rigorous physical/mathematical model of heterogeneous conductive media based on the effective-medium approach. The new generalized effective-medium theory of IP effect (GEMTIP) provides a unified mathematical method to study heterogeneity, multi-phase structure, and polarizability of rocks. The geoelectrical parameters of a new composite conductivity model are determined by the intrinsic petrophysical and geometrical characteristics of composite media: mineralization and/or fluid content of rocks, matrix composition, porosity, anisotropy, and polarizability of formations. The new GEMTIP model of multi-phase conductive media provides a quantitative tool for evaluation of the type of mineralization, and the volume content of different minerals using electromagnetic data. We have developed a 3-D EM-IP modeling algorithm using the integral equation (IE) method. Our IE forward modeling software is based on the contraction IE method, which improves the convergence rate of the iterative solvers. This code can handle various types of sources and receivers to compute the effect of a complex resistivity model. We have demonstrated that the generalized effective-medium theory of induced polarization (GEMTIP) in combination with the IE forward modeling method can be used for rock-scale forward modeling from grain-scale parameters. The numerical modeling study clearly demonstrates how the various complex resistivity models manifest differently in the observed EM data. These modeling studies lay a background for future development of the IP inversion method, directed at determining the electrical conductivity and the intrinsic chargeability distributions, as well as the other parameters of the relaxation model simultaneously. The new technology introduced in this project can be used for the discrimination between uneconomic mineral deposits and the location of zones of economic mineralization and geothermal resources.

Michael S. Zhdanov

2009-03-09T23:59:59.000Z

71

Inductive coupler for downhole components and method for making same  

DOE Patents [OSTI]

An inductive coupler for downhole components. The inductive coupler includes an annular housing having a recess defined by a bottom portion and two opposing side wall portions. At least one side wall portion includes a lip extending toward but not reaching the other side wall portion. A plurality of generally U-shaped MCEI segments, preferably comprised of ferrite, are disposed in the recess and aligned so as to form a circular trough. The coupler further includes a conductor disposed within the circular trough and a polymer filling spaces between the segments, the annular housing and the conductor.

Hall, David R.; Hall Jr., H. Tracy; Pixton, David S.; Dahlgren, Scott; Sneddon, Cameron; Fox, Joe; Briscoe, Michael A.

2006-10-03T23:59:59.000Z

72

Downhole Sensor Holds Transformative Potential | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: TopEnergy DOEDealingVehicle1 Guidanceflash2004-12.pdfDownhole Sensor Holds

73

Innovative Exploration Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. Project Summary: Locate and drill two exploration wells that will be used to define the nature and extent of the geothermal resources on Jemez Pueblo in the Indian Springs area.

74

Downhole control of deviation with steerable straight-hole turbodrills  

SciTech Connect (OSTI)

Advances in directional drilling have until recently been confined to issues that are peripheral to the central problem of controlling assembly behavior downhole. Examples of these advances are measurement while drilling (MWD) and the increasing use of computer assistance in well planning. These were significant steps forward, but the major problem remained. Changes in formation deviation tendencies led to trips to change bottomhole assemblies (BHA's) to cope with the new conditions. There is almost no direct control of deviation behavior. The steerable straight-hole turbodrill (SST) addresses this problem directly, allowing alteration of the well course without the need to trip. The availability of such a system radically changes the way in which directional well planning may be approached. This paper describes the equipment used and the equipment's construction and operational requirements. It discusses the capabilities and current limitation of the systems. Field results are presented for some 300,000 ft (91 500 m) of deviated drilling carried out over 2 years in Alaska and the North Sea. A series of four highly deviated wells totaling 35,000 ft (10 700m) with only three deviation trips is included. The SST is the first deviation drilling system to achieve deviation control over long sections without tripping to change BHA's. Bits and downhole equipment are now more reliable and long-lived than ever, therefore, deviation trips are becoming a major target for well cost saving.

Gaynor, T.M.

1988-03-01T23:59:59.000Z

75

Tactile robotic mapping of unknown surfaces: An application to oil well exploration  

E-Print Network [OSTI]

World oil demand and advanced oil recovery techniques have made it economically attractive to rehabilitate previously abandoned oil wells. This requires relatively fast mapping of the shape and location of the down-hole ...

Mazzini, Francesco

76

CubeExplorer: An Evaluation of Interaction Techniques in Architectural Education  

E-Print Network [OSTI]

comparing CubeExplorer and SketchUp in a similar building task. Keywords: Education, 3D modeling, pen, requiring students to focus on constructability. CAD tools such as AutoCAD [1], SketchUp [3], or FormZ [2

Keinan, Alon

77

Downhole cement test in a very hot hole  

SciTech Connect (OSTI)

Completion of the commercial-sized Hot Dry Rock Geothermal Energy Project requires that hydraulic fractures be created between two inclined wellbores at a depth of about 4 km (15,000 ft). Isolation of a section of the open wellbore is necessary for pressurization to achieve the fracture connections. A cemented-in liner/PBR assembly is one of the methods used for zone isolation near the botton of the injection well. A downhole, pumped cement test was first conducted at a wellbore temperature of 275/sup 0/C (525/sup 0/F) to determine if a suitable slurry could be designed, pumped, and later recovered to assure the success of the cemented-in liner operation.

Pettitt, R.A.; Cocks, G.G.; Dreesen, D.N.; Sims, J.R.; Nicholson, R.W.; Boevers, B.

1982-01-01T23:59:59.000Z

78

275 C Downhole Switched-Mode Power Supply  

SciTech Connect (OSTI)

A vee-square (V2) control based controller IC is developed for a switch mode power supply capable of operating at extreme temperature/harsh environment conditions. A buck type regulator with silicon carbide power junction field effect transistors (JFET) as power devices is used to analyze the performance of controller. Special emphases are made on the analog sub-blocks--voltage reference, operational transconductance amplifier and comparator as individual building blocks. Transformer coupled gate drives and high temperature operable magnetic cores and capacitors are identified and tested for use in the design. Conventional ceramic chip packaging of ICs combined with lead carrier type mounting of passive filter components is introduced for hybrid packaging of the complete product. The developed SMPS is anticipated to support the operation of down-hole microcontrollers and other electronics devices that require low/medium power filtered dc inputs over an operating temperature of 275 C.

Chris Hutchens; Vijay Madhuravasal

2008-08-31T23:59:59.000Z

79

Program for the improvement of downhole drilling motors  

SciTech Connect (OSTI)

This report describes the work done under contract to Sandia National Labs and to the Department of Energy for improvement of downhole drilling motors. The focus of this program was the development of a better bearing-and-seal assembly that could be used in different kinds of drilling motors in a geothermal environment. Major tasks were: (1) design and construction of seal testing devices, (2) screening and evaluation of candidate seals in a simulated bearing/seal package, (3) tests of the most promising candidates in a full-scale bearing/seal package, and (4) analysis of failed seals after testing. The key results from this program were: (1) identification of seal/shaft/lubricant systems that performed well at high pressure and temperature, (2) identification of other seal designs that should be avoided for similar applications, and (3) evaluation of the test machines' design.

Finger, J.T.

1983-11-01T23:59:59.000Z

80

Element for use in an inductive coupler for downhole components  

DOE Patents [OSTI]

An element for use in an inductive coupler for downhole components comprises an annular housing having a generally circular recess. The element further comprises a plurality of generally linear, magnetically conductive segments. Each segment includes a bottom portion, an inner wall portion, and an outer wall portion. The portions together define a generally linear trough from a first end to a second end of each segment. The segments are arranged adjacent to each other within the housing recess to form a generally circular trough. The ends of at least half of the segments are shaped such that the first end of one of the segments is complementary in form to the second end of an adjacent segment. In one embodiment, all of the ends are angled. Preferably, the first ends are angled with the same angle and the second ends are angled with the complementary angle.

Hall, David R. (Provo, UT); Fox, Joe (Spanish Fork, UT)

2009-03-31T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

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

E-Print Network [OSTI]

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...

Li, Zhuoyi

2011-02-22T23:59:59.000Z

82

An improved finite difference calculation of downhole dynamometer cards for sucker rod pumps  

E-Print Network [OSTI]

AN IMPROVED FINITE DIFFERENCE CALCULATION OF DOWNHOLE DYNAMOMETER CARDS FOR SUCKER ROD PUMPS A Thesis by THOMAS AARON EVERITT Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 1987 Maj or Subj ect: Petroleum Engineering AN IMPROVED FINITE DIFFERENCE CALCULATION OF DOWNHOLE DYNAMOMETER CARDS FOR SUCKER ROD PUMPS A Thesis by THOMAS AARON EVERITT Approved as to style and content by: James W. nin...

Everitt, Thomas Aaron

1987-01-01T23:59:59.000Z

83

Apparatus for downhole drilling communications and method for making and using the same  

DOE Patents [OSTI]

An apparatus for downhole drilling communications is presented. The apparatus includes a spool and end pieces for maintaining the spool at the bottom of a drill string near a drill bit during drilling operations. The apparatus provides a cable for communicating signals between a downhole electronics package and a surface receiver in order to perform measurements while drilling. A method of forming the apparatus is also set forth wherein the apparatus is formed about a central spindle and lathe. 6 figs.

Normann, R.A.; Lockwood, G.J.; Gonzales, M.

1998-03-03T23:59:59.000Z

84

Apparatus for downhole drilling communications and method for making and using the same  

DOE Patents [OSTI]

An apparatus for downhole drilling communications is presented. The apparatus includes a spool and end pieces for maintaining the spool at the bottom of a drill string near a drill bit during drilling operations. The apparatus provides a cable for communicating signals between a downhole electronics package and a surface receiver in order to perform measurements while drilling. A method of forming the apparatus is also set forth wherein the apparatus is formed about a central spindle and lathe.

Normann, Randy A. (Edgewood, NM); Lockwood, Grant J. (Albuquerque, NM); Gonzales, Meliton (Albuquerque, NM)

1998-01-01T23:59:59.000Z

85

CUORE and beyond: bolometric techniques to explore inverted neutrino mass hierarchy  

E-Print Network [OSTI]

The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay of $^{130}$Te. With 741 kg of TeO$_2$ crystals and an excellent energy resolution of 5 keV (0.2%) at the region of interest, CUORE will be one of the most competitive neutrinoless double beta decay experiments on the horizon. With five years of live time, CUORE projected neutrinoless double beta decay half-life sensitivity is $1.6\\times 10^{26}$ y at $1\\sigma$ ($9.5\\times10^{25}$ y at the 90% confidence level), which corresponds to an upper limit on the effective Majorana mass in the range 40--100 meV (50--130 meV). Further background rejection with auxiliary light detector can significantly improve the search sensitivity and competitiveness of bolometric detectors to fully explore the inverted neutrino mass hierarchy with $^{130}$Te and possibly other double beta decay candidate nuclei.

D. R. Artusa; F. T. Avignone III; O. Azzolini; M. Balata; T. I. Banks; G. Bari; J. Beeman; F. Bellini; A. Bersani; M. Biassoni; C. Brofferio; C. Bucci; X. Z. Cai; A. Camacho; L. Canonica; X. G. Cao; S. Capelli; L. Carbone; L. Cardani; M. Carrettoni; N. Casali; D. Chiesa; N. Chott; M. Clemenza; S. Copello; C. Cosmelli; O. Cremonesi; R. J. Creswick; I. Dafinei; A. Dally; V. Datskov; A. De Biasi; M. M. Deninno; S. Di Domizio; M. L. di Vacri; L. Ejzak; D. Q. Fang; H. A. Farach; M. Faverzani; G. Fernandes; E. Ferri; F. Ferroni; E. Fiorini; M. A. Franceschi; S. J. Freedman; B. K. Fujikawa; A. Giachero; L. Gironi; A. Giuliani; J. Goett; P. Gorla; C. Gotti; T. D. Gutierrez; E. E. Haller; K. Han; K. M. Heeger; R. Hennings-Yeomans; H. Z. Huang; R. Kadel; K. Kazkaz; G. Keppel; Yu. G. Kolomensky; Y. L. Li; C. Ligi; X. Liu; Y. G. Ma; C. Maiano; M. Maino; M. Martinez; R. H. Maruyama; Y. Mei; N. Moggi; S. Morganti; T. Napolitano; S. Nisi; C. Nones; E. B. Norman; A. Nucciotti; T. O'Donnell; F. Orio; D. Orlandi; J. L. Ouellet; M. Pallavicini; V. Palmieri; L. Pattavina; M. Pavan; M. Pedretti; G. Pessina; V. Pettinacci; G. Piperno; C. Pira; S. Pirro; E. Previtali; V. Rampazzo; C. Rosenfeld; C. Rusconi; E. Sala; S. Sangiorgio; N. D. Scielzo; M. Sisti; A. R. Smith; L. Taffarello; M. Tenconi; F. Terranova; W. D. Tian; C. Tomei; S. Trentalange; G. Ventura; M. Vignati; B. S. Wang; H. W. Wang; L. Wielgus; J. Wilson; L. A. Winslow; T. Wise; A. Woodcraft; L. Zanotti; C. Zarra; B. X. Zhu; S. Zucchelli

2014-07-04T23:59:59.000Z

86

Application of oil exploration techniques toward finding a nuclear waste repository site  

SciTech Connect (OSTI)

Through its National Waste Terminal Storage (NWTS) Program, the U.S. Department of Energy is responsible for providing facilities to permanently dispose of high-level nuclear waste in a manner that will ensure public health and safety and that will be environmentally acceptable. Three separately coordinated projects, which have placed emphasis on deep, underground repositories are described. They are the Basalt Waste Isolation Project at the Hanford Reservation in Wahington, the Nevada Nuclear Waste Storage investigations at the Nevada Test Site, and a project focusing on suitable rock types in the remainder of the conterminous 48 states, managed by the Office of Nuclear Waste Isolation in Columbus, Ohio. The last-mentioned project is presently focused on rock salt and crystalline formations as suitable host rocks for a repository. The geologic evaluation considers stratigraphy, structure, hydrogeology, seismicity, tectonic history, Quaternary features, physiography, energy/mineral resources, and geotechnical factors. Extensive use has been made of drill stem test data, a mainstay of petroleum exploration since the late 1920`s, to obtain hydrologic information. (JMT)

Laughon, R.B.

1982-06-01T23:59:59.000Z

87

CUORE and beyond: bolometric techniques to explore inverted neutrino mass hierarchy  

E-Print Network [OSTI]

The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay of $^{130}$Te. With 741 kg of TeO$_2$ crystals and an excellent energy resolution of 5 keV (0.2%) at the region of interest, CUORE will be one of the most competitive neutrinoless double beta decay experiments on the horizon. With five years of live time, CUORE projected neutrinoless double beta decay half-life sensitivity is $1.6\\times 10^{26}$ y at $1\\sigma$ ($9.5\\times10^{25}$ y at the 90% confidence level), which corresponds to an upper limit on the effective Majorana mass in the range 40--100 meV (50--130 meV). Further background rejection with auxiliary light detector can significantly improve the search sensitivity and competitiveness of bolometric detectors to fully explore the inverted neutrino mass hierarchy with $^{130}$Te and possibly other double beta decay candidate nuclei.

Artusa, D R; Azzolini, O; Balata, M; Banks, T I; Bari, G; Beeman, J; Bellini, F; Bersani, A; Biassoni, M; Brofferio, C; Bucci, C; Cai, X Z; Camacho, A; Canonica, L; Cao, X G; Capelli, S; Carbone, L; Cardani, L; Carrettoni, M; Casali, N; Chiesa, D; Chott, N; Clemenza, M; Copello, S; Cosmelli, C; Cremonesi, O; Creswick, R J; Dafinei, I; Dally, A; Datskov, V; De Biasi, A; Deninno, M M; Di Domizio, S; di Vacri, M L; Ejzak, L; Fang, D Q; Farach, H A; Faverzani, M; Fernandes, G; Ferri, E; Ferroni, F; Fiorini, E; Franceschi, M A; Freedman, S J; Fujikawa, B K; Giachero, A; Gironi, L; Giuliani, A; Goett, J; Gorla, P; Gotti, C; Gutierrez, T D; Haller, E E; Han, K; Heeger, K M; Hennings-Yeomans, R; Huang, H Z; Kadel, R; Kazkaz, K; Keppel, G; Kolomensky, Yu G; Li, Y L; Ligi, C; Liu, X; Ma, Y G; Maiano, C; Maino, M; Martinez, M; Maruyama, R H; Mei, Y; Moggi, N; Morganti, S; Napolitano, T; Nisi, S; Nones, C; Norman, E B; Nucciotti, A; O'Donnell, T; Orio, F; Orlandi, D; Ouellet, J L; Pallavicini, M; Palmieri, V; Pattavina, L; Pavan, M; Pedretti, M; Pessina, G; Pettinacci, V; Piperno, G; Pira, C; Pirro, S; Previtali, E; Rampazzo, V; Rosenfeld, C; Rusconi, C; Sala, E; Sangiorgio, S; Scielzo, N D; Sisti, M; Smith, A R; Taffarello, L; Tenconi, M; Terranova, F; Tian, W D; Tomei, C; Trentalange, S; Ventura, G; Vignati, M; Wang, B S; Wang, H W; Wielgus, L; Wilson, J; Winslow, L A; Wise, T; Woodcraft, A; Zanotti, L; Zarra, C; Zhu, B X; Zucchelli, S

2014-01-01T23:59:59.000Z

88

Program for the improvement of downhole drilling-motor bearings and seals. Final report: Phase III, Part 1  

SciTech Connect (OSTI)

A systematic laboratory testing and evaluation program to select high-temperature seals, bearings, and lubricants for geothermal downhole drilling motors is summarized.

Not Available

1980-03-01T23:59:59.000Z

89

Inductive coupler for downhole components and method for making same  

DOE Patents [OSTI]

The present invention includes a method of making an inductive coupler for downhole components. The method includes providing an annular housing, preferably made of steel, the housing having a recess. A conductor, preferably an insulated wire, is also provided along with a plurality of generally U-shaped magnetically conducting, electrically insulating (MCEI) segments. Preferably, the MCEI segments comprise ferrite. An assembly is formed by placing the plurality of MCEI segments within the recess in the annular housing. The segments are aligned to form a generally circular trough. A first portion of the conductor is placed within the circular trough. This assembly is consolidated with a meltable polymer which fills spaces between the segments, annular housing and the first portion of the conductor. The invention also includes an inductive coupler including an annular housing having a recess defined by a bottom portion and two opposing side wall portions. At least one side wall portion includes a lip extending toward but not reaching the other side wall portion. A plurality of generally U-shaped MCEI segments, preferably comprised of ferrite, are disposed in the recess and aligned so as to form a circular trough. The coupler further includes a conductor disposed within the circular trough and a polymer filling spaces between the segments, the annular housing and the conductor.

Hall, David R.; Hall Jr., H. Tracy; Pixton, David S.; Dahlgren, Scott; Briscoe, Michael A.; Sneddon, Cameron; Fox, Joe

2006-05-09T23:59:59.000Z

90

Drilling Optimization Utilizing Surface Instrumentaton for Downhole Event Recognition  

SciTech Connect (OSTI)

This DOE project was undertaken to develop and test an instrumented data-acquisition sub that is mounted in a drill string below the top drive and used to detect downhole events. Data recorded at the surface during drilling operations would then be processed and presented to the driller to discern undesirable drilling conditions and help optimize drilling rates and maximize the life of components in the BHA. This instrumented sub was originally conceived and developed solely as a single-point collection center for rig data that would be used in a number of Noble's products. The sub was designed to collect hook load, rotary torque, rotary speed, rotary position, drill pipe pressure, mud temperature, triaxial vibration, and triaxial magnetometer data. The original design and fabrication was by Sandia National Labs under Noble's direction, which was then tested with Sandia's diagnostics-while-drilling downhole package. After initial results were analyzed, the team surmised that important information describing performance and condition of the bottom-hole assembly (BHA) was embedded in the data recorded by the instrumented sub, and began investigating the potential of using surface measurements from the sub to highlight problems occurring downhole before they could be discerned by the driller. Later, a proposal was submitted to DOE for funding to more broadly investigate use of the system for detecting downhole problems while drilling. Soon after DOE awarded this contract, the Noble team responsible for the previous developments was disbanded and their work terminated (due to factors unrelated to the sub development). This change halted the complementary work that Noble had planned to conduct during the DOE project, and necessitated that all the development work be completed by the DOE project. More effort was expended on the project to develop a field-ready prototype than was originally foreseen. The sub's design had to be significantly modified during the project based on results of field tests. The original slip ring for communication was replaced with a radio link, which makes the sub easier to move to different rigs and simplifies the set-up process. In addition, the sub's previous design would prevent it being used on oil and gas rigs due to potential explosion hazard. The sub was redesigned so that during operation all electrical components on the sub are under a blanket of nitrogen. A pressure switch is used so that, should a leak develop, the sub will shut itself down until any problems are repaired. A total of four series of field tests were conducted. The first (mentioned above) was part of the original Noble-sponsored program and in conjunction with Sandia's diagnostics-while-drilling system. Although these tests highlighted important problems, they showed significant promise for the concept, and the sub was returned to Sandia for early repairs and modifications. After the DOE project took possession of the sub, it was tested three more times in the field. The first two DOE tests had the same objective, which was to establish that the sub could function correctly on the rig and deliver usable data, and to develop procedures for setting up and operating the sub and support computer on a rig. During the first test most of the time was spent troubleshooting the sub. Several significant problems were revealed, demonstrating that the current design was not robust enough to survive typical oil field operations. The sub was then redesigned to increase its robustness and allow it to run safely in areas where explosive gases might be present. Once these changes were implemented, the sub was sent to a second shake-down field test. The new design was found to be greatly improved. The sub operated throughout the test, and quality of the data was significantly higher. Near the end of this project, a final field test was conducted with the objective of creating (or simulating) specific problem conditions and recording data to determine if signatures could be recorded and identified that, after analysis, might signify particula

John H. Cohen; Greg Deskins

2006-02-01T23:59:59.000Z

91

Downhole steam generator with improved preheating/cooling features  

DOE Patents [OSTI]

An apparatus for downhole steam generation employing dual-stage preheaters for liquid fuel and for the water. A first heat exchange jacket for the fuel surrounds the fuel/oxidant mixing section of the combustor assembly downstream of the fuel nozzle and contacts the top of the combustor unit of the combustor assembly, thereby receiving heat directly from the combustion of the fuel/oxidant. A second stage heat exchange jacket surrounds an upper portion of the oxidant supply line adjacent the fuel nozzle receiving further heat from the compression heat which results from pressurization of the oxidant. The combustor unit includes an inner combustor sleeve whose inner wall defines the combustion zone. The inner combustor sleeve is surrounded by two concentric water channels, one defined by the space between the inner combustor sleeve and an intermediate sleeve, and the second defined by the space between the intermediate sleeve and an outer cylindrical housing. The channels are connected by an annular passage adjacent the top of the combustor assembly and the countercurrent nature of the water flow provides efficient cooling of the inner combustor sleeve. An annular water ejector with a plurality of nozzles is provided to direct water downwardly into the combustor unit at the boundary of the combustion zone and along the lower section of the intermediate sleeve.

Donaldson, A. Burl (Albuquerque, NM); Hoke, Donald E. (Albuquerque, NM); Mulac, Anthony J. (Tijeras, NM)

1983-01-01T23:59:59.000Z

92

Feasibility evaluation of downhole oil/water separator (DOWS) technology.  

SciTech Connect (OSTI)

The largest volume waste stream associated with oil and gas production is produced water. A survey conducted by the American Petroleum Institute estimated that 20.9 billion barrels of produced water were disposed of in 1985 (Wakim 1987). Of this total, 91% was disposed of through disposal wells or was injected for enhanced oil recovery projects. Treatment and disposal of produced water represents a significant cost for operators. A relatively new technology, downhole oil/water separators (DOWS), has been developed to reduce the cost of handling produced water. DOWS separate oil and gas from produced water at the bottom of the well and reinject some of the produced water into another formation or another horizon within the same formation, while the oil and gas are pumped to the surface. Since much of the produced water is not pumped to the surface, treated, and pumped from the surface back into a deep formation, the cost of handling produced water is greatly reduced. When DOWS are used, additional oil may be recovered as well. In cases where surface processing or disposal capacity is a limiting factor for further production within a field, the use of DOWS to dispose of some of the produced water can allow additional production within that field. Simultaneous injection using DOWS minimizes the opportunity for contamination of underground sources of drinking water (USDWs) through leaks in tubing and casing during the injection process. This report uses the acronym 'DOWS' although the technology may also be referred to as DHOWS or as dual injection and lifting systems (DIALS). Simultaneous injection using DOWS has the potential to profoundly influence the domestic oil industry. The technology has been shown to work in limited oil field applications in the United States and Canada. Several technical papers describing DOWS have been presented at oil and gas industry conferences, but for the most part, the information on the DOWS technology has not been widely transferred to operators, particularly to small or medium-sized independent U.S. companies. One of the missions of the U.S. Department of Energy's (DOE's) National Petroleum Technology Office (NPTO) is to assess the feasibility of promising oil and gas technologies that offer improved operating performance, reduced operating costs, or greater environmental protection. To further this mission, the NPTO provided funding to a partnership of three organizations a DOE national laboratory (Argonne National Laboratory), a private-sector consulting firm (CH2M-Hill), and a state government agency (Nebraska Oil and Gas Conservation Commission) to assess the feasibility of DOWS. The purpose of this report is to provide general information to the industry on DOWS by describing the existing uses of simultaneous injection, summarizing the regulatory implications of simultaneous injection, and assessing the potential future uses of the technology. Chapter 2 provides a more detailed description of the two major types of DOWS. Chapter 3 summarizes the existing U.S. and Canadian installations of DOWS equipment, to the extent that operators have been willing to share their data. Data are provided on the location and geology of existing installations, production information before and after installation of the DOWS, and costs. Chapter 4 provides an overview of DOWS-specific regulatory requirements imposed by some state agencies and discusses the regulatory implications of handling produced water downhole, rather than pumping it to the surface and reinjecting it. Findings and conclusions are presented in Chapter 5 and a list of the references cited in the report is provided in Chapter 6. Appendix A presents detailed data on DOWS installations. This report presents the findings of Phase 1 of the simultaneous injection project, the feasibility assessment. Another activity of the Phase 1 investigation is to design a study plan for Phase 2 of the project, field pilot studies. The Phase 2 study plan is being developed separately and is not included in this report.

Veil, J. A.; Langhus, B. G.; Belieu, S.; Environmental Assessment; CH2M Hill; Nebraska Oil and Gas Conservation Commission

1999-01-31T23:59:59.000Z

93

Apparatus and method for compensating for clock drift in downhole drilling components  

DOE Patents [OSTI]

A precise downhole clock that compensates for drift includes a prescaler configured to receive electrical pulses from an oscillator. The prescaler is configured to output a series of clock pulses. The prescaler outputs each clock pulse after counting a preloaded number of electrical pulses from the oscillator. The prescaler is operably connected to a compensator module for adjusting the number loaded into the prescaler. By adjusting the number that is loaded into the prescaler, the timing may be advanced or retarded to more accurately synchronize the clock pulses with a reference time source. The compensator module is controlled by a counter-based trigger module configured to trigger the compensator module to load a value into the prescaler. Finally, a time-base logic module is configured to calculate the drift of the downhole clock by comparing the time of the downhole clock with a reference time source.

Hall, David R. (Provo, UT); Pixton, David S. (Lehi, UT); Johnson, Monte L. (Orem, UT); Bartholomew, David B. (Springville, UT); Hall, Jr., H. Tracy (Provo, UT)

2007-08-07T23:59:59.000Z

94

Development of a High-Pressure/High-Temperature Downhole Turbine Generator  

SciTech Connect (OSTI)

The objective of this project as originally outlined has been to achieve a viable downhole direct current (DC) power source for extreme high pressure, high temperature (HPHT) environments of >25,000 psi and >250 C. The Phase I investigation posed and answered specific questions about the power requirements, mode of delivery and form factor the industry would like to see for downhole turbine generator tool for the HPHT environment, and noted specific components, materials and design features of that commercial system that will require upgrading to meet the HPHT project goals. During the course of Phase I investigation the scope of the project was HPHT downhole DC power. Phase I also investigated the viability of modifying a commercial expanded, without additional cost expected to the project, to include the addition of HT batteries to the power supply platform.

Timothy F. Price

2007-02-01T23:59:59.000Z

95

Development of a High Pressure/High Temperature Down-hole Turbine Generator  

SciTech Connect (OSTI)

As oil & natural gas deposits become more difficult to obtain by conventional means, wells must extend to deeper more heat-intensive environments. The technology of the drilling equipment required to reach these depths has exceeded the availability of electrical power sources needed to operate these tools. Historically, logging while drilling (LWD) and measure while drilling (MWD) devices utilized a wireline to supply power and communication from the operator to the tool. Lithium ion batteries were used in scenarios where a wireline was not an option, as it complicated operations. In current downhole applications, lithium ion battery (LIB) packs are the primary source for electrical power. LIB technology has been proven to supply reliable downhole power at temperatures up to 175 °C. Many of the deeper well s reach ambient temperatures above 200 °C, creating an environment too harsh for current LIB technology. Other downfalls of LIB technology are cost, limitations on charge cycles, disposal issues and possible safety hazards including explosions and fires. Downhole power generation can also be achieved by utilizing drilling fluid flow and converting it to rotational motion. This rotational motion can be harnessed to spin magnets around a series of windings to produce power proportional to the rpm experienced by the driven assembly. These generators are, in most instances, driven by turbine blades or moyno-based drilling fluid pumps. To date, no commercially available downhole power generators are capable of operating at ambient temperatures of 250 °C. A downhole power g enerator capable of operation in a 250 °C and 20,000 psi ambient environment will be an absolute necessity in the future. Dexter Magnetic Technologies’ High-Pressure High-Temperature (HPHT) Downhole Turbine Generator is capable of operating at 250 °C and 20, 000 psi, but has not been tested in an actual drilling application. The technology exists, but to date no company has been willing to test the tool.

Ben Plamp

2008-06-30T23:59:59.000Z

96

Downhole geothermal well sensors comprising a hydrogen-resistant optical fiber  

DOE Patents [OSTI]

A new class of optical fiber based thermal sensors has been invented. The new sensors comprise hydrogen-resistant optical fibers which are able to withstand a hot, hydrogen-containing environment as is often found in the downhole well environment.

Weiss, Jonathan D.

2005-02-08T23:59:59.000Z

97

Microseismic mapping of a Cotton Valley hydraulic fracture using decimated downhole arrays J.T. Rutledge  

E-Print Network [OSTI]

Microseismic mapping of a Cotton Valley hydraulic fracture using decimated downhole arrays J three hydraulic fracture operations in the Cotton Valley gas field of East Texas. Two 48-level, 3 a consortia of operators and service companies conducted an extensive hydraulic fracture imaging demonstration

98

Application of a Downhole Flowmeter to Detecting Casing Breaks in a Geothermal Well  

SciTech Connect (OSTI)

The downhole flowmeter logging system for high temperature geothermal wells developed at Wairakei, New Zealand, is proving to be an invaluable tool for use during workovers to repair or reinstate problem wells. This contribution describes a straightforward example of identifying breaks in plain casing near the top of a productive well.

Syms, Margot C.; Syms, Peter H.; Bixley, Paul F.

1980-12-16T23:59:59.000Z

99

Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County Oklahoma  

SciTech Connect (OSTI)

The objective of this project is to demonstrate the impact of downhole vibration stimulation on oil production rates in a mature waterflood field. Oil & Gas Consultants International, Inc. (OGCI) will manage the project in close cooperation with the Osage Tribe as the tests will be conducted in Osage County, Oklahoma, the mineral estate of the Osage Tribe. The field is owned and operated by Calumet Oil Company. Phillips Petroleum Company will contribute their proprietary vibration core analysis of cores recovered from the pilot test area. To achieve the project objectives, the work has been divided into nine tasks, some are concurrent, while other tasks rely on completion of previous steps. The operator, Calumet Oil Company operates several field in Osage County Oklahoma. The North Burbank Unit will be the site of the test. The team will then determine where within the field to optimally locate the vibration test well. With the location determined, the test well will be drilled, cored, logged and 7-inch production casing run and cemented. In a parallel effort, OGCI will be designing, building, and testing a new version of the downhole vibration tool based on their patented and field proven whirling orbital vibrator. With the field test tool built to run in 7-inch casing. Reliability testing of the downhole tool and surface power source will be conducted in nearby field operated by Calumet Oil Company. After the core is recovered, Phillips Petroleum Company will be conducting laboratory tests utilizing their proprietary sonic core apparatus to determine fluid flow response to a range of vibration frequencies. These results, in turn, will allow final adjustments to the frequency generation mechanisms of the downhole vibration tool. One or more offset wells, near to the vibration test well, will be equipped with downhole geophones and or hydro-phones to determine the strength of signal and if the producing formation has a characteristic resonant frequency response. Surface geophones will also be set out and arranged to pick up the signal generated by the downhole vibration tool. The downhole vibrator will be installed in the test well. Monitoring the production and injection for the pilot test area will continue. As the frequency of the downhole tool is changed, the recording of seismic signals, both on the surface and downhole, will also be conducted. The results of the data collection will be a matrix of varying vibration stimulation conditions corresponding to changes in production fluid rates and seismic responses. The report on the results of the downhole vibration stimulation will be prepared and delivered using several venues. Technical papers will be submitted to the Society of Petroleum Engineers. Workshops are planned to be held for operators in Osage County and surrounding areas. A dedicated technical session on vibration stimulation may be offered at the 2002 SPE/DOE/IOR Conference, bringing together the world's experts in this emerging technology. The final task will be to close out the project.

J. Ford Brett; Robert V. Westermark

2001-03-31T23:59:59.000Z

100

Downhole microseismic monitoring of hydraulic fracturing: a full-waveform approach for complete moment tensor inversion and stress estimation  

E-Print Network [OSTI]

Downhole microseismics has gained in popularity in recent years as a way to characterize hydraulic fracturing sources and to estimate in-situ stress state. Conventional approaches only utilize part of the information ...

Song, Fuxian

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Full-waveform based complete moment tensor inversion and source parameter estimation from downhole microseismic data for hydrofracture monitoring  

E-Print Network [OSTI]

Downhole microseismic monitoring is a valuable tool in understanding the efficacy of hydraulic fracturing. Inverting for the moment tensor has gained increasing popularity in recent years as a way to understand the fracturing ...

Song, Fuxian

102

Full-waveform Based Complete Moment Tensor Inversion and Stress Estimation from Downhole Microseismic Data for Hydrofracture Monitoring  

E-Print Network [OSTI]

Downhole microseismics has gained increasing popularity in recent years as a way to characterize hydraulic fracturing and to estimate in-situ stress state. Conventional approaches only utilize part of the information ...

Song, Fuxian

2011-01-01T23:59:59.000Z

103

High-Temperature Motor Windings for Downhole Pumps Used in Geothermal Energy Production  

SciTech Connect (OSTI)

The development of highly reliable downhole equipment is an essential element in enabling the widespread utilization of Enhanced Geothermal Systems (EGS). The downhole equipment used in these systems will be required to operate at high voltages and temperatures on the order of 200 to 250°C (and eventually to 300?C). These conditions exceed the practical operating ranges of currently available thermoplastic wire insulations, and thus limit the operating lifetime of tools such as Electric Submersible Pumps (ESPs). In this work, high-temperature insulations based on composite materials were developed and demonstrated. The products of this work were found to exhibit electrical resistivities and dielectric breakdown strengths that PEEK at temperatures above 250C. In addition, sub-scale motor windings were fabricated and tested to validate the performance of this technology

Hooker, Matthew; Hazelton, Craig; Kano, Kimi

2010-12-31T23:59:59.000Z

104

Biased insert for installing data transmission components in downhole drilling pipe  

DOE Patents [OSTI]

An apparatus for installing data transmission hardware in downhole tools includes an insert insertable into the box end or pin end of drill tool, such as a section of drill pipe. The insert typically includes a mount portion and a slide portion. A data transmission element is mounted in the slide portion of the insert. A biasing element is installed between the mount portion and the slide portion and is configured to create a bias between the slide portion and the mount portion. This biasing element is configured to compensate for varying tolerances encountered in different types of downhole tools. In selected embodiments, the biasing element is an elastomeric material, a spring, compressed gas, or a combination thereof.

Hall, David R. (Provo, UT); Briscoe, Michael A. (Lehi, UT); Garner, Kory K. (Payson, UT); Wilde, Tyson J. (Spanish Fork, UT)

2007-04-10T23:59:59.000Z

105

An Internal Coaxial Cable Electrical Connector For Use In Downhole Tools  

DOE Patents [OSTI]

A coaxial cable electrical connector more specifically an internal coaxial cable connector placed within a coaxial cable and its constituent components. A coaxial cable connector is in electrical communcation with an inductive transformer and a coaxial cable. The connector is in electrical communication with the outer housing of the inductive transfonner. A generally coaxial center conductor, a portion of which could be the coil in the inductive transformer, passes through the connector, is electrically insulated from the connector, and is in electrical communication with the conductive care of the coaxial cable. A plurality of bulbous pliant tabs on the coaxial cable connector mechanically engage the inside diameter of the coaxial cable thus grounding the transformer to the coaxial cable. The coaxial cable and inductive transformer are disposed within downhole tools to transmit electrical signals between downhole tools within a drill string.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Dahlgren, Scott (Provo, UT); Fox, Joe (Spanish Fork, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT)

2005-11-29T23:59:59.000Z

106

Downhole steam generator using low-pressure fuel and air supply  

DOE Patents [OSTI]

For tertiary oil recovery, an apparatus for downhole steam generation is designed in which water is not injected directly onto the flame in the combustor, the combustion process is isolated from the reservoir pressure, the fuel and oxidant are supplied to the combustor at relatively low pressures, and the hot exhaust gases is prevented from entering the earth formation but is used to preheat the fuel and oxidant and water. The combustion process is isolated from the steam generation process. (DLC)

Fox, R.L.

1981-01-07T23:59:59.000Z

107

An Internal Coaxial Cable Electrical Connector For Use In Downhole Tools  

DOE Patents [OSTI]

A seal for a coaxial cable electrical connector more specifically an internal seal for a coaxial cable connector placed within a coaxial cable and its constituent components. A coaxial cable connector is in electrical communcation with an inductive transformer and a coaxial cable. The connector is in electrical communication with the outer housing of the inductive transformer. A generally coaxial center conductor, a portion of which could be the coil in the inductive transformer, passes through the connector, is electrically insulated from the connector, and is in electrical communication with the conductive core of the coaxial cable. The electrically insulating material also doubles as a seal to safegaurd against penetration of fluid, thus protecting against shorting out of the electrical connection. The seal is a multi-component seal, which is pre-compressed to a desired pressure rating. The coaxial cable and inductive transformer are disposed within downhole tools to transmit electrical signals between downhole tools within a drill string. The internal coaxial cable connector and its attendant seal can be used in a plurality of downhole tools, such as sections of pipe in a drill string, drill collars, heavy weight drill pipe, and jars.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Dahlgren, Scott (Provo, UT); Fox, Joe (Spanish Fork, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT)

2005-09-20T23:59:59.000Z

108

Program for the improvement of downhole drilling motor bearings and seals. Phase V. Final report  

SciTech Connect (OSTI)

The work done during the fifth and final phase of a program to improve downhole drilling motor bearing and seals is described. The principal activities in this phase were: (a) testing seals with abrasive-laden mud on the low-pressure side; (b) test second and third generation designs of both elastomeric chevron seals and Teflon U-seals; and (c) testing a full-scale bearing/seal package. Several operating parameters which have a radical effect on seal life were identified, and some promising designs and materials were tested.

DeLafosse, P.H.; Tibbitts, G.A.; Black, A.D.; DiBona, B.G.

1983-08-01T23:59:59.000Z

109

ENHANCED OIL RECOVERY WITH DOWNHOLE VIBRATION STIMULATION IN OSAGE COUNTY OKLAHOMA  

SciTech Connect (OSTI)

This Final Report covers the entire project from July 13, 2000 to June 30, 2003. The report summarizes the details of the work done on the project entitled ''Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County Oklahoma'' under DOE Contract Number DE-FG26-00BC15191. The project was divided into nine separate tasks. This report is written in an effort to document the lessons learned during the completion of each task. Therefore each task will be discussed as the work evolved for that task throughout the duration of the project. Most of the tasks are being worked on simultaneously, but certain tasks were dependent on earlier tasks being completed. During the three years of project activities, twelve quarterly technical reports were submitted for the project. Many individual topic and task specific reports were included as appendices in the quarterly reports. Ten of these reports have been included as appendices to this final report. Two technical papers, which were written and accepted by the Society of Petroleum Engineers, have also been included as appendices. The three primary goals of the project were to build a downhole vibration tool (DHVT) to be installed in seven inch casing, conduct a field test of vibration stimulation in a mature waterflooded field and evaluate the effects of the vibration on both the produced fluid characteristics and injection well performance. The field test results are as follows: In Phase I of the field test the DHVT performed exceeding well, generating strong clean signals on command and as designed. During this phase Lawrence Berkeley National Laboratory had installed downhole geophones and hydrophones to monitor the signal generated by the downhole vibrator. The signals recorded were strong and clear. Phase II was planned to be ninety-day reservoir stimulation field test. This portion of the field tests was abruptly ended after one week of operations, when the DHVT became stuck in the well during a routine removal activity. The tool cannot operate in this condition and remains in the well. There was no response measured during or afterwards to either the produced fluids from the five production wells or in the injection characteristics of the two injection wells in the pilot test area. Monitoring the pilot area injection and production wells ceased when the field test was terminated March 14, 2003. Thus, a key goal of this project, which was to determine the effects of vibration stimulation on improving oil recovery from a mature waterflood, was not obtained. While there was no improved oil recovery effect measured, there was insufficient vibration stimulation time to expect a change to occur. No conclusion can be drawn about the effectiveness of vibration stimulation in this test.

Robert Westermark; J. Ford Brett

2003-11-01T23:59:59.000Z

110

Enhanced Oil Recovery with Downhole Vibrations Stimulation in Osage County, Oklahoma  

SciTech Connect (OSTI)

This Technical Quarterly Report is for the reporting period July 1, 2001 to September 30, 2001. The report provides details of the work done on the project entitled ''Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County Oklahoma''. The project is divided into nine separate tasks. Several of the tasks are being worked on simultaneously, while other tasks are dependent on earlier tasks being completed. The vibration stimulation well is permitted as Well 111-W-27, section 8 T26N R6E Osage County Oklahoma. It was spud July 28, 2001 with Goober Drilling Rig No. 3. The well was drilled to 3090-feet cored, logged, cased and cemented. The Rig No.3 moved off August 6, 2001. Phillips Petroleum Co. has begun analyzing the cores recovered from the test well. Standard porosity, permeability and saturation measurements will be conducted. They will then begin the sonic stimulation core tests Calumet Oil Company, the operator of the NBU, has begun to collect both production and injection wells information to establish a baseline for the project in the pilot field test area. Green Country Submersible Pump Company, a subsidiary of Calumet Oil Company, will provide both the surface equipment and downhole tools to allow the Downhole Vibration Tool to be operated by a surface rod rotating system. The 7-inch Downhole Vibration Tool (DHVT) has been built and is ready for initial shallow testing. The shallow testing will be done in a temporarily abandoned well operated by Calumet Oil Co. in the Wynona waterflood unit. The data acquisition doghouse and rod rotating equipment have been placed on location in anticipation of the shallow test in Well No.20-12 Wynona Waterflood Unit. A notice of invention disclosure was submitted to the DOE Chicago Operations Office. DOE Case No.S-98,124 has been assigned to follow the documentation following the invention disclosure. A paper covering the material presented to the Oklahoma Geologic Survey (OGS)/DOE Annual Workshop in Oklahoma City May 8,9 2001 has been submitted for publication to the OGS. A technical paper draft has been submitted for the ASME/ETCE conference (Feb 2002) Production Technology Symposium. A one-day SPE sponsored short course which is planned to cover seismic stimulation efforts around the world, will be offered at the SPE/DOE Thirteenth Symposium on Improved Oil Recovery in Tulsa, OK, April 13-17, 2002. Dan Maloney, Phillips and Bob Westermark, OGCI will be the instructors. In addition, a proposed technical paper has been submitted for this meeting.

J. Ford Brett; Robert V. Westermark

2001-09-30T23:59:59.000Z

111

Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County Oklahoma  

SciTech Connect (OSTI)

This Technical Quarterly Report is for the reporting period July 1, 2000 to September 30, 2000. The report provides details of the work done on the project entitled ''Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County Oklahoma''. The project is divided into nine separate tasks. Since this is the first Quarterly report, much of the work done is of a preliminary nature. Several of the tasks are being worked on simultaneously, while other tasks are dependent on earlier tasks being completed. The selection of the pilot test area has been completed. The drilling of the test well is waiting on rig availability. Phillips has begun sonic core testing of offset cores, waiting on the core from the well to be drilled. Design work is progressing for the tool, which will be built to fit the test well. Installation of monitoring equipment and the downhole vibration tool will occur after the well is drilled. Technical transfer efforts have begun with the submission of an abstract for a technical paper for the Oklahoma City Society of Petroleum Engineers meeting in March 2001.

J. Ford Brett; Robert V. Westermark

2000-09-30T23:59:59.000Z

112

Behavior of a hollow core photonic crystal fiber under high radial pressure for downhole application  

SciTech Connect (OSTI)

Pressure fiber sensors play an important role in downhole high pressure measurements to withstand long term operation. The purpose of this paper is to present an application of hollow core photonic crystal fiber (HC-PCF) as a high pressure sensor head for downhole application based on dispersion variation. We used a high pressure stainless steel unit to exert pressure on the sensor. The experimental results show that different wavelengths based on sagnac loop interferometer have additive sensitivities from 5?×?10{sup ?5}?nm/psi at 1480?nm to 1.3?×?10{sup ?3}?nm/psi at 1680?nm. We developed a simulation to understand the reason for difference in sensitivity of wavelengths and also the relationship between deformation of HC-PCF and dispersion variation under pressure. For this purpose, by using the finite element method, we investigated the effect of structural variation of HC-PCF on spectral transformation of two linear polarizations under 1000?psi pressure. The simulation and experimental results show exponential decay behavior of dispersion variation from ?3.4?×?10{sup ?6} 1/psi to ?1.3?×?10{sup ?6} 1/psi and from ?5?×?10{sup ?6} 1/psi to ?1.8?×?10{sup ?6} 1/psi, respectively, which were in a good accordance with each other.

Sadeghi, J., E-mail: j-sadeghi@sbu.ac.ir; Chenari, Z.; Ziaee, F. [Laser and Plasma Research Institute, Shahid Beheshti University, 1983963113 Tehran (Iran, Islamic Republic of); Latifi, H., E-mail: latifi@sbu.ac.ir [Laser and Plasma Research Institute, Shahid Beheshti University, 1983963113 Tehran (Iran, Islamic Republic of); Department of Physics, Shahid Beheshti University, Evin, 1983963113 Tehran (Iran, Islamic Republic of); Santos, J. L., E-mail: josantos@fc.up.pt [INESC Porto—Instituto de Engenharia de Sistemas e Computadores do Porto, Rua do Campo Alegre, 687, 4169-007 Porto (Portugal); Departamento de Física, da Faculdade de Ciências, da Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto (Portugal)

2014-02-17T23:59:59.000Z

113

Explore This!  

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

Explore these Topics Explore Science Explore Explore these Topics Activities Videos Cool Links Favorite Q&A invisible utility element Explore This Science is far deeper and wider...

114

Field test of two high-pressure, direct-contact downhole steam generators. Volume I. Air/diesel system  

SciTech Connect (OSTI)

As a part of the Project DEEP STEAM to develop technology to more efficiently utilize steam for the recovery of heavy oil from deep reservoirs, a field test of a downhole steam generator (DSG) was performed. The DSG burned No. 2 diesel fuel in air and was a direct-contact, high pressure device which mixed the steam with the combustion products and injected the resulting mixture directly into the oil reservoir. The objectives of the test program included demonstration of long-term operation of a DSG, development of operational methods, assessment of the effects of the steam/combustion gases on the reservoir and comparison of this air/diesel DSG with an adjacent oxygen/diesel direct contact generator. Downhole operation of the air/diesel DSG was started in June 1981 and was terminated in late February 1982. During this period two units were placed downhole with the first operating for about 20 days. It was removed, the support systems were slightly modified, and the second one was operated for 106 days. During this latter interval the generator operated for 70% of the time with surface air compressor problems the primary source of the down time. Thermal contact, as evidenced by a temperature increase in the production well casing gases, and an oil production increase were measured in one of the four wells in the air/diesel pattern. Reservoir scrubbing of carbon monoxide was observed, but no conclusive data on scrubbing of SO/sub x/ and NO/sub x/ were obtained. Corrosion of the DSG combustor walls and some other parts of the downhole package were noted. Metallurgical studies have been completed and recommendations made for other materials that are expected to better withstand the downhole combustion environment. 39 figures, 8 tables.

Marshall, B.W.

1983-05-01T23:59:59.000Z

115

Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County, Oklahoma  

SciTech Connect (OSTI)

This Technical Quarterly Report is for the reporting period March 31, 2002 to June 30, 2002. The report provides details of the work done on the project entitled ''Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County Oklahoma''. The project is divided into nine separate tasks. Several of the tasks are being worked on simultaneously, while other tasks are dependent on earlier tasks being completed. The vibration stimulation Well 111-W-27 is located in section 8 T26N R6E of the North Burbank Unit (NBU), Osage County Oklahoma. It was drilled to 3090-feet cored, logged, cased and cemented. The rig moved off August 6, 2001. Phillips Petroleum Co. has performed several core studies on the cores recovered from the test well. Standard porosity, permeability and saturation measurements have been conducted. In addition Phillips has prepared a Core Petrology Report, detailing the lithology, stratigraphy and sedimentology for Well 111-W27, NBU. Phillips has also conducted the sonic stimulation core tests, the final sonic stimulation report has not yet been released. Calumet Oil Company, the operator of the NBU, began collecting both production and injection wells information to establish a baseline for the project in the pilot field test area since May 2001. The original 7-inch Downhole Vibration Tool (DHVT) has been thoroughly tested and it has been concluded that it needs to be redesigned. An engineering firm from Fayetteville AR has been retained to assist in developing a new design for the DHVT. The project participants requested from the DOE, a no-cost extension for the project through December 31, 2002. The no-cost extension amendment to the contract was signed during this reporting period. A technical paper SPE 75254 ''Enhanced Oil Recovery with Downhole Vibration Stimulation, Osage County, Oklahoma'' was presented at the 2002 SPE/DOE Thirteenth Symposium on Improved Oil Recovery, in Tulsa OK, April 17, 2002. A one-day short course was conducted at the SPE/DOE Thirteenth Symposium on Improved Oil Recovery in Tulsa, OK, April 13-14, 2002. Dan Maloney, Phillips and Bob Westermark, OGCI, Brett Davidson and Tim Spanos, Prism Production Technologies, were the instructors. The sixteen attendees also participated in the half-day field trip to the test facility near Tulsa.

J. Ford Brett; Robert V. Westermark

2002-06-30T23:59:59.000Z

116

Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County, Oklahoma  

SciTech Connect (OSTI)

This Technical Quarterly Report is for the reporting period September 30, 2001 to December 31, 2001. The report provides details of the work done on the project entitled ''Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County Oklahoma''. The project is divided into nine separate tasks. Several of the tasks are being worked on simultaneously, while other tasks are dependent on earlier tasks being completed. The vibration stimulation well was permitted as Well 111-W-27, section 8 T26N R6E Osage County Oklahoma. It was spud July 28, 2001 with Goober Drilling Rig No. 3. The well was drilled to 3090-feet cored, logged, cased and cemented. The Rig No.3 moved off August 6, 2001. Phillips Petroleum Co. has performed standard core analysis on the cores recovered from the test well. Standard porosity, permeability and saturation measurements have been conducted. Phillips has begun the sonic stimulation core tests. Calumet Oil Company, the operator of the NBU, has been to collecting both production and injection wells information to establish a baseline for the project in the pilot field test area since May 2001. The 7-inch Downhole Vibration Tool (DHVT) has been built and has been run in a shallow well for initial power source testing. This testing was done in a temporarily abandoned well, Wynona Waterflood Unit, Well No.20-12 operated by Calumet Oil Co both in October and December 2001. The data acquisition system, and rod rotating equipment performed as designed. However, the DHVT experienced two internal failures during vibration operations. The DHVT has been repaired with modifications to improve its functionality. A proposed technical paper abstract has been accepted by the SPE to be presented at the 2002 SPE/DOE Thirteenth Symposium on Improved Oil Recovery, in Tulsa OK, 13-17 April 2002. A one-day SPE sponsored short course which is planned to cover seismic stimulation efforts around the world, will be offered at the SPE/DOE Thirteenth Symposium on Improved Oil Recovery in Tulsa, OK, April 13-17, 2002. Dan Maloney, Phillips and Bob Westermark, OGCI will be the instructors.

J. Ford Brett; Robert V. Westermark

2001-12-31T23:59:59.000Z

117

Explore Science  

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Science Explore Science Explore Explore these Topics Activities Videos Cool Links Favorite Q&A invisible utility element Science is thinking in an organized way about things...

118

Assessment and interpretation of cross- and down-hole seismograms at the Paducah Gaseous Diffusion Plant  

SciTech Connect (OSTI)

This paper is an assessment and interpretation of cross-and down-hole seismograms recorded at four sites in the vicinity of the Paducah Gaseous Diffusion Plant (PGDP). Arrival times of shear (S-) and compressional (P-) waves are recorded on these seismograms in milliseconds. Together with known distances between energy sources and seismometers lowered into boreholes, these arrival times are used to calculate S- and P-wave velocities in unconsolidated soils and sediments that overlie bedrock approximately 320 ft beneath PGDP. The soil columns are modified after an earlier draft by ERC Environmental and Energy Services Company (ERCE), 1990. In addition to S- and P- wave velocity estimates from this paper, the soil columns contain ERCE's lithologic and other geotechnical data for unconsolidated soils and sediments from the surface to bedrock. Soil columns for Sites 1 through 4 and a site location map are in Plates 1 through 5 of Appendix 6. The velocities in the four columns are input parameters for the SHAKE computer program, a nationally recognized computer model that simulates ground response of unconsolidated materials to earthquake generated seismic waves. The results of the SHAKE simulation are combined with predicted ground responses on rock foundations (caused by a given design earthquake) to predict ground responses of facilities with foundations placed on unconsolidated materials. 3 refs.

Staub, W.P.; Wang, J.C. (Oak Ridge National Lab., TN (United States)); Selfridge, R.J. (Automated Sciences Group, (United States))

1991-09-01T23:59:59.000Z

119

Downhole steam generator with improved preheating/cooling features. [Patent application  

DOE Patents [OSTI]

An apparatus is described for downhole steam generation employing dual-stage preheaters for liquid fuel and for the water. A first heat exchange jacket for the fuel surrounds the fuel/oxidant mixing section of the combustor assembly downstream of the fuel nozzle and contacts the top of the combustor unit of the combustor assembly, thereby receiving heat directly from the combustion of the fuel/oxidant. A second stage heat exchange jacket surrounds an upper portion of the oxidant supply line adjacent the fuel nozzle receiving further heat from the compression heat which results from pressurization of the oxidant. The combustor unit includes an inner combustor sleeve whose inner wall defines the combustion zone. The inner combustor sleeve is surrounded by two concentric water channels, one defined by the space between the inner combustor sleeve and an intermediate sleeve, and the second defined by the space between the intermediate sleeve and an outer cylindrical housing. The channels are connected by an annular passage adjacent the top of the combustor assembly and the countercurrent nature of the water flow provides efficient cooling of the inner combustor sleeve. An annular water ejector with a plurality of nozzles is provided to direct water downwardly into the combustor unit at the boundary of the combustion zone and along the lower section of the intermediate sleeve.

Donaldson, A.B.; Hoke, D.E.; Mulac, A.J.

1980-10-10T23:59:59.000Z

120

Development of a 400 Level 3C Clamped Downhole Seismic Receiver Array for 3D Borehole Seismic Imaging of Gas Reservoirs  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to perform high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology has been hampered by the lack of acquisition technology necessary to record large volumes of high frequency, high signal-to-noise-ratio borehole seismic data. This project took aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array has removed the technical acquisition barrier for recording the data volumes necessary to do high resolution 3D VSP and 3D cross-well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that promise to take the gas industry to the next level in their quest for higher resolution images of deep and complex oil and gas reservoirs. Today only a fraction of the oil or gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of detailed compartmentalization of oil and gas reservoirs. In this project, we developed a 400 level 3C borehole seismic receiver array that allows for economic use of 3D borehole seismic imaging for reservoir characterization and monitoring. This new array has significantly increased the efficiency of recording large data volumes at sufficiently dense spatial sampling to resolve reservoir complexities. The receiver pods have been fabricated and tested to withstand high temperature (200 C/400 F) and high pressure (25,000 psi), so that they can operate in wells up to 7,620 meters (25,000 feet) deep. The receiver array is deployed on standard production or drill tubing. In combination with 3C surface seismic or 3C borehole seismic sources, the 400 level receiver array can be used to obtain 3D 9C data. These 9C borehole seismic data provide both compressional wave and shear wave information that can be used for quantitative prediction of rock and pore fluid types. The 400-level borehole receiver array has been deployed successfully in a number of oil and gas wells during the course of this project, and each survey has resulted in marked improvements in imaging of geologic features that are critical for oil or gas production but were previously considered to be below the limits of seismic resolution. This added level of reservoir detail has resulted in improved well placement in the oil and gas fields that have been drilled using the Massive 3D VSP{reg_sign} images. In the future, the 400-level downhole seismic receiver array is expected to continue to improve reservoir characterization and drilling success in deep and complex oil and gas reservoirs.

Bjorn N. P. Paulsson

2006-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Alum Innovative Exploration  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Reduce the high level of risk during the early stages of geothermal project development by conducting a multi-faceted and innovative exploration and drilling program at Alum. Determine the combination of techniques that are most useful and cost-effective in identifying the geothermal resource through a detailed, post-project evaluation of the exploration and drilling program.

122

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently hampered by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2005-03-31T23:59:59.000Z

123

Development of a 400 Level 3C Clamped Downhole Seismic Receiver Array for 3D Borehole Seismic Imaging of Gas Reservoirs  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently hampered by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N. P. Paulsson

2005-09-30T23:59:59.000Z

124

Development of a 400 Level 3C Clamped Downhole Seismic Receiver Array for 3D Borehole Seismic Imaging of Gas Reservoirs  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently hampered by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P Paulsson

2006-05-05T23:59:59.000Z

125

Development of a 400 Level 3C Clamped Downhole Seismic Receiver Array for 3D Borehole Seismic Imaging of Gas Reservoirs  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently hampered by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2005-08-21T23:59:59.000Z

126

Waveguide-based ultrasonic and far-field electromagnetic sensors for downhole reservoir characterization.  

SciTech Connect (OSTI)

This report summarizes the first year research and development effort leading to development of high-temperature sensors for enhanced geothermal systems. It covers evaluation of ultrasonic and electromagnetic (EM) techniques applied to temperature measurement and flow characterization. On temperature measurement, we have evaluated both microwave radiometry and ultrasonic techniques for temperature gradient and profile measurements. Different antenna designs are evaluated and array loop antenna design is selected for further development. We have also evaluated ultrasonic techniques for total flow characterization, which includes using speed of sound to determine flow temperature, measuring acoustic impedance to estimate fluid density, and using cross-correlation technique to determine the mass flow rate. Method to estimate the flow enthalpy is briefly discussed. At end, the need and proposed techniques to characterize the porosity and permeability of a hot dry rock resource are presented.

Sheen, S. H.; Chien, H. T.; Wang, K.; Liao, S.; Gopalsami, N.; Bakhtiari, S.; Raptis, A. C.; Nuclear Engineering Division

2010-11-12T23:59:59.000Z

127

Downhole Measurements of Shear- and Compression-Wave Velocities in Boreholes C4993, C4996, C4997 and C4998 at the Waste Treatment Plant DOE Hanford Site.  

SciTech Connect (OSTI)

This report describes the procedures and the results of a series of downhole measurements of shear- and compression-wave velocities performed as part of the Seismic Boreholes Project at the site of the Waste Treatment Plant (WTP). The measurements were made in several stages from October 2006 through early February 2007. Although some fieldwork was carried out in conjunction with the University of Texas at Austin (UT), all data acquired by UT personnel are reported separately by that organization.

Redpath, Bruce B.

2007-04-27T23:59:59.000Z

128

Field application of an interpretation method of downhole temperature and pressure data for detecting water entry in horizontal/highly inclined gas wells  

E-Print Network [OSTI]

condition change, wellbore structure change, geothermal environment change, or simple just noise of measurement. To separate flow condition change from the other causes of temperature change, we require a comprehensive understanding of flow dynamics. 5.... The interpretation model for downhole temperature and pressure data is a coupled thermal wellbore/reservoir flow model. The model is built on fundamental flow and energy conservation equations for both the reservoir and wellbore. These equations are: Mass balance...

Achinivu, Ochi I.

2009-05-15T23:59:59.000Z

129

Underground Exploration  

E-Print Network [OSTI]

Underground Exploration and Testing A Report to Congress and the Secretary of Energy Nuclear Waste Technical Review Board October 1993 Yucca Mountain at #12;Nuclear Waste Technical Review Board Dr. John E and Testing #12;Executive Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Introduction

130

Static downhole characteristics of well CGEH-1 at Coso Hot Springs, China  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g GrantAtlas (PACA RegionSpringviewName StatelineOpen

131

Explore Science  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4:Epitaxial Thin FilmEquipment SSRL plansExpertsExplore Explore

132

Exploring OLAP Aggregates with Hierarchical Visualization Techniques  

E-Print Network [OSTI]

interact with data in a predominantly "drill-down" fashion, i.e. from coarse grained aggregates towards-Line Analytical Processing (OLAP) has evolved into a core technology for comprehensive data analysis in business to be analyzed impose new requirements on OLAP systems. The goal of in- tegrating data from heterogeneous sources

Scholl, Marc H.

133

Exploring OLAP Aggregates with Hierarchical Visualization Techniques  

E-Print Network [OSTI]

with data cubes in a predominantly "drill- down" fashion, i.e. from coarse grained aggregates towards technology for comprehensive data analysis in business and, more recently, in various non-business environments. Growing complexity and volumes of the data to be analyzed impose new requirements on OLAP systems

Reiterer, Harald

134

Property:ExplorationTechnique | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories onFocusOskiPhilipspresents newValuesEnvironmentalAnalysisType Jump

135

Category:Exploration Techniques | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarreis aCallahanWind Farm JumpBLM)Development5Elkins,Geothermal

136

Form:ExplorationTechnique | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6Theoretical vsFlintFluxInput your dataset name below

137

Exploration Geochemistry  

E-Print Network [OSTI]

and environmental constraints. eter Winterburn #12;M D R U Societal demands for mineral resources continue to spur and restrictive policy changes. The discovery of new mineral resources requires increasing risk, increasing costs ­ Global Exploration for Vale. His research interests centre on innovation of cost-effective, robust

Michelson, David G.

138

Development of Exploration Methods for Engineered Geothermal...  

Open Energy Info (EERE)

non-invasive techniques. This proposed exploration methodology is expected to increase spatial resolution and reduce the non-uniqueness that is inherent in geological data,...

139

EXPLORATION ACTIVITY WORKSHEET MAJOR & CAREER EXPLORATION  

E-Print Network [OSTI]

of activity or process you should explore to bring you closer to your academic goals. NameEXPLORATION ACTIVITY WORKSHEET MAJOR & CAREER EXPLORATION Purpose: The exploration activity is designed for students to "explore" opportunities at UM as they relate to student success, majors, careers

Milchberg, Howard

140

Exploring new energy alternatives.  

SciTech Connect (OSTI)

What is most likely to satisfy our energy needs in the future - wind farms and photovoltaic arrays, or something yet to be invented? Options for the world's energy future may include surprises, thanks to innovative research under way around the world. The article focuses on the energy sources alternatives in the U.S. It explores innovations for energy sources such as wind farms, solar thermal concentrators, solar cells, and geothermal energy production. It states that the attainment of energy efficiency through conversation or improved technology allows to extract more applied energy. It points out that techniques are being explored to expand the possible fuel materials to includes other types of uranium and thorium. Furthermore, it discusses the capability of nanotechnology in offering a tool which could help create designs that convert energy more efficiently.

LePoire, D.J. (Environmental Science Division)

2011-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Silver Peak Innovative Exploration Project  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Reduce the high level of risk during the early stages of geothermal project development by conducting a multi-faceted and innovative exploration and drilling program at Silver Peak. Determine the combination of techniques that are most useful and cost-effective in identifying the geothermal resource through a detailed, post-project evaluation of the exploration and drilling program.

142

Detection of CO2 Seepage From Geological Sequestration Sites Using an Array of Downhole Pressure Gauges Jalal Jalali, Shahab D. Mohaghegh, Dept. of Petroleum & Natural Gas Engineering, West Virginia University  

E-Print Network [OSTI]

University 8th Annual Conference on Carbon Capture & Sequestration, May 4th ­ 7th 2009, Pittsburgh, PA LongDetection of CO2 Seepage From Geological Sequestration Sites Using an Array of Downhole Pressure term monitoring of geologic sites used for CO2 sequestration is an environmental necessity while

Mohaghegh, Shahab

143

Data Exploration at NERSC  

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

Exploration Data Exploration energy16gunther.jpg Highly interactive data exploration is a key component of scientific analytics, often combining multiple analytics technologies,...

144

Downhole pulse radar  

DOE Patents [OSTI]

A borehole logging tool generates a fast rise-time, short duration, high peak-power radar pulse having broad energy distribution between 30 MHz and 300 MHz through a directional transmitting and receiving antennas having barium titanate in the electromagnetically active region to reduce the wavelength to within an order of magnitude of the diameter of the antenna. Radar returns from geological discontinuities are sampled for transmission uphole. 7 figs.

Chang, Hsi-Tien

1987-09-28T23:59:59.000Z

145

Rock Mechanics and Enhanced Geothermal Systems: A DOE-sponsored Workshop to Explore Research Needs  

SciTech Connect (OSTI)

This workshop on rock mechanics and enhanced geothermal systems (EGS) was held in Cambridge, Mass., on June 20-21 2003, before the Soil and Rock America 2003 International Conference at MIT. Its purpose was to bring together experts in the field of rock mechanics and geothermal systems to encourage innovative thinking, explore new ideas, and identify research needs in the areas of rock mechanics and rock engineering applied to enhanced geothermal systems. The agenda is shown in Appendix A. The workshop included experts in the fields of rock mechanics and engineering, geological engineering, geophysics, drilling, the geothermal energy production from industry, universities and government agencies, and laboratories. The list of participants is shown is Appendix B. The first day consisted of formal presentations. These are summarized in Chapter 1 of the report. By the end of the first day, two broad topic areas were defined: reservoir characterization and reservoir performance. Working groups were formed for each topic. They met and reported in plenary on the second day. The working group summaries are described in Chapter 2. The final session of the workshop was devoted to reaching consensus recommendations. These recommendations are given in Chapter 3. That objective was achieved. All the working group recommendations were considered and, in order to arrive at a practical research agenda usable by the workshop sponsors, workshop recommendations were reduced to a total of seven topics. These topics were divided in three priority groups, as follows. First-priority research topics (2): {sm_bullet} Define the pre-existing and time-dependent geometry and physical characteristics of the reservoir and its fracture network. That includes the identification of hydraulically controlling fractures. {sm_bullet} Characterize the physical and chemical processes affecting the reservoir geophysical parameters and influencing the transport properties of fractures. Incorporate those processes in reservoir simulators. Second-priority research topics (4): {sm_bullet} Implement and proof-test enhanced fracture detection geophysical methods, such as 3-D surface seismics, borehole seismics, and imaging using earthquake data. {sm_bullet} Implement and proof-test enhanced stress measurement techniques, such as borehole breakout analysis, tilt-meters, and earthquake focal mechanism analysis. {sm_bullet} Implement and proof-test high-temperature down-hole tools for short-term and long-term diagnostics, such as borehole imaging, geophone arrays, packers, and electrical tools.

Francois Heuze; Peter Smeallie; Derek Elsworth; Joel L. Renner

2003-10-01T23:59:59.000Z

146

MAGNETOTELLURICS -APPLICATION TO RESOURCE EXPLORATION, STUDIES OF CRUST/LITHOSPHERE,  

E-Print Network [OSTI]

OF TECHNIQUES OF DATA ACQUISITION AND INTERPRETATION NATIONAL GEOPHYSICAL RESEARCH INSTITUTE (COUNCILMAGNETOTELLURICS - APPLICATION TO RESOURCE EXPLORATION, STUDIES OF CRUST/LITHOSPHERE, IMPROVEMENT: NGRI-2009-EXP- MAGNETOTELLURICS ­ APPLICATION TO RESOURCE EXPLORATION, STUDIES OF CRUST / LITHOSPHERE

Harinarayana, T.

147

Airborne electromagnetic surveys as a reconnaissance technique...  

Open Energy Info (EERE)

Airborne electromagnetic surveys as a reconnaissance technique for geothermal exploration Abstract INPUT airborne electromagnetic (AEM) surveys were conducted during 1979 in five...

148

Geophysical Exploration (Montana)  

Broader source: Energy.gov [DOE]

An exploration permit is required for any entity conducting geophysical exploration within the state of Montana. Such entities are also required to follow rules adopted by the Board of Oil and Gas...

149

Oil and Gas Exploration  

E-Print Network [OSTI]

Metals Industrial Minerals Oil and Gas Geothermal Exploration Development Mining Processing Nevada, oil and gas, and geothermal activities and accomplishments in Nevada: production statistics, exploration and development including drilling for petroleum and geothermal resources, discoveries of ore

Tingley, Joseph V.

150

Digital Solar Explorer Introduction  

E-Print Network [OSTI]

Digital Solar Explorer Introduction Description Content Design Physical Interaction An element of interactivity is added to the Digital Solar Explorer exhibit through the use of a controller. Simple, intuitive the learning process, which is the number one goal of the Digital Solar Explorer exhibit. Essentially, the user

Zanibbi, Richard

151

Dismantling techniques  

SciTech Connect (OSTI)

Most of the dismantling techniques used in a Decontamination and Dismantlement (D and D) project are taken from conventional demolition practices. Some modifications to the techniques are made to limit exposure to the workers or to lessen the spread of contamination to the work area. When working on a D and D project, it is best to keep the dismantling techniques and tools as simple as possible. The workers will be more efficient and safer using techniques that are familiar to them. Prior experience with the technique or use of mock-ups is the best way to keep workers safe and to keep the project on schedule.

Wiese, E.

1998-03-13T23:59:59.000Z

152

Roadmap for Venus Exploration Roadmap for Venus Exploration  

E-Print Network [OSTI]

Roadmap for Venus Exploration May 2014 #12;ii Roadmap for Venus Exploration At the VEXAG meeting in November 2013, it was resolved and Investigations for Venus Exploration (GOI), (2) develop a Roadmap for Venus exploration

Rathbun, Julie A.

153

USE OF CUTTING-EDGE HORIZONTAL AND UNDERBALANCED DRILLING TECHNOLOGIES AND SUBSURFACE SEISMIC TECHNIQUES TO EXPLORE, DRILL AND PRODUCE RESERVOIRED OIL AND GAS FROM THE FRACTURED MONTEREY BELOW 10,000 FT IN THE SANTA MARIA BASIN OF CALIFORNIA  

SciTech Connect (OSTI)

This project was undertaken to demonstrate that oil and gas can be drilled and produced safely and economically from a fractured Monterey reservoir in the Santa Maria Basin of California by employing horizontal wellbores and underbalanced drilling technologies. Two vertical wells were previously drilled in this area by Temblor Petroleum with heavy mud and conventional completions; neither was commercially productive. A new well was drilled by the project team in 2004 with the objective of accessing an extended length of oil-bearing, high-resistivity Monterey shale via a horizontal wellbore, while implementing managed-pressure drilling (MPD) techniques to avoid formation damage. Initial project meetings were conducted in October 2003. The team confirmed that the demonstration well would be completed open-hole to minimize productivity impairment. Following an overview of the geologic setting and local field experience, critical aspects of the application were identified. At the pre-spud meeting in January 2004, the final well design was confirmed and the well programming/service company requirements assigned. Various design elements were reduced in scope due to significant budgetary constraints. Major alterations to the original plan included: (1) a VSP seismic survey was delayed to a later phase; (2) a new (larger) surface hole would be drilled rather than re-enter an existing well; (3) a 7-in. liner would be placed into the top of the Monterey target as quickly as possible to avoid problems with hole stability; (4) evaluation activities were reduced in scope; (5) geosteering observations for fracture access would be deduced from penetration rate, cuttings description and hydrocarbon in-flow; and (6) rather than use nitrogen, a novel air-injection MPD system was to be implemented. Drilling operations, delayed from the original schedule by capital constraints and lack of rig availability, were conducted from September 12 to November 11, 2004. The vertical and upper curved sections were drilled and lined through the problematic shale member without major stability problems. The top of the targeted Monterey was thought to be seen at the expected TVD of 10,000 ft where the 7-in. liner was set at a 60{sup o} hole angle. Significant oil and gas shows suggested the fractured interval anticipated at the heel location had been penetrated. A total of 2572 ft of 6.-in. near-horizontal interval was placed in the shale section, extending planned well length by approximately 470 ft. Very little hydrocarbon in-flow was observed from fractures along the productive interval. This may be a result of the well trajectory falling underneath the Monterey fractured zone. Hydrocarbon observations, cuttings analysis and gamma-ray response indicated additional fractured intervals were accessed along the last {+-}900 ft of well length. The well was completed with a 2 7/8-in. tubing string set in a production packer in preparation for flow and swab tests to be conducted later by a service rig. The planned well time was estimated as 39 days and overall cost as $2.4 million. The actual results are 66 days at a total cost of $3.4 million. Well productivity responses during subsequent flow and swabbing tests were negative. The well failed to inflow and only minor amounts (a few barrels) of light oil were recovered. The lack of production may suggest that actual sustainable reservoir pressure is far less than anticipated. Temblor is currently investigating the costs and operational viability of re-entering the well and conducting an FMI (fracture detection) log and/or an acid stimulation. No final decision or detailed plans have been made regarding these potential interventions at this time.

George Witter; Robert Knoll; William Rehm; Thomas Williams

2005-02-01T23:59:59.000Z

154

Use of Cutting-Edge Horizontal and Underbalanced Drilling Technologies and Subsurface Seismic Techniques to Explore, Drill and Produce Reservoired Oil and Gas from the Fractured Monterey Below 10,000 ft in the Santa Maria Basin of California  

SciTech Connect (OSTI)

This project was undertaken to demonstrate that oil and gas can be drilled and produced safely and economically from a fractured Monterey reservoir in the Santa Maria Basin of California by employing horizontal wellbores and underbalanced drilling technologies. Two vertical wells were previously drilled in this area with heavy mud and conventional completions; neither was commercially productive. A new well was drilled by the project team in 2004 with the objective of accessing an extended length of oil-bearing, high-resistivity Monterey shale via a horizontal wellbore, while implementing managed-pressure drilling (MPD) techniques to avoid formation damage. Initial project meetings were conducted in October 2003. The team confirmed that the demonstration well would be completed open-hole to minimize productivity impairment. Following an overview of the geologic setting and local field experience, critical aspects of the application were identified. At the pre-spud meeting in January 2004, the final well design was confirmed and the well programming/service company requirements assigned. Various design elements were reduced in scope due to significant budgetary constraints. Major alterations to the original plan included: (1) a VSP seismic survey was delayed to a later phase; (2) a new (larger) surface hole would be drilled rather than re-enter an existing well; (3) a 7-in. liner would be placed into the top of the Monterey target as quickly as possible to avoid problems with hole stability; (4) evaluation activities were reduced in scope; (5) geosteering observations for fracture access would be deduced from penetration rate, cuttings description and hydrocarbon in-flow; and (6) rather than use nitrogen, a novel air-injection MPD system was to be implemented. Drilling operations, delayed from the original schedule by capital constraints and lack of rig availability, were conducted from September 12 to November 11, 2004. The vertical and upper curved sections were drilled and lined through the problematic shale member without major stability problems. The top of the targeted Monterey was thought to be seen at the expected TVD of 10,000 ft where the 7-in. liner was set at a 60{sup o} hole angle. Significant oil and gas shows suggested the fractured interval anticipated at the heel location had been penetrated. A total of 2572 ft of 6{Delta}-in. near-horizontal interval was placed in the shale section, extending planned well length by approximately 470 ft. Very little hydrocarbon in-flow was observed from fractures along the productive interval. This may be a result of the well trajectory falling underneath the Monterey fractured zone. Hydrocarbon observations, cuttings analysis and gamma-ray response indicated additional fractured intervals were accessed along the last {+-}900 ft of well length. The well was completed with a 2 and 7/8-in. tubing string set in a production packer in preparation for flow and swab tests to be conducted later by a service rig. The planned well time was estimated as 39 days and overall cost as $2.4 million. The actual results are 66 days at a total cost of $3.4 million. Well productivity responses during subsequent flow and swabbing tests were negative. The well failed to inflow and only minor amounts (a few barrels) of light oil were recovered. The lack of production may suggest that actual sustainable reservoir pressure is far less than anticipated. Temblor attempted in July, 2006, to re-enter and clean out the well and run an Array Induction log (primarily for resistivity and correlation purposes), and an FMI log (for fracture detection). Application of surfactant in the length of the horizontal hole, and acid over the fracture zone at 10,236 was also planned. This attempt was not successful in that the clean out tools became stuck and had to be abandoned.

George Witter; Robert Knoll; William Rehm; Thomas Williams

2006-06-30T23:59:59.000Z

155

Use of Cutting-Edge Horizontal and Underbalanced Drilling Technologies and Subsurface Seismic Techniques to Explore, Drill and Produce Reservoired Oil and Gas from the Fractured Monterey Below 10,000 ft in the Santa Maria Basin of California  

SciTech Connect (OSTI)

This project was undertaken to demonstrate that oil and gas can be drilled and produced safely and economically from a fractured Monterey reservoir in the Santa Maria Basin of California by employing horizontal wellbores and underbalanced drilling technologies. Two vertical wells were previously drilled in this area with heavy mud and conventional completions; neither was commercially productive. A new well was drilled by the project team in 2004 with the objective of accessing an extended length of oil-bearing, high-resistivity Monterey shale via a horizontal wellbore, while implementing managed-pressure drilling (MPD) techniques to avoid formation damage. Initial project meetings were conducted in October 2003. The team confirmed that the demonstration well would be completed open-hole to minimize productivity impairment. Following an overview of the geologic setting and local field experience, critical aspects of the application were identified. At the pre-spud meeting in January 2004, the final well design was confirmed and the well programming/service company requirements assigned. Various design elements were reduced in scope due to significant budgetary constraints. Major alterations to the original plan included: (1) a VSP seismic survey was delayed to a later phase; (2) a new (larger) surface hole would be drilled rather than re-enter an existing well; (3) a 7-in. liner would be placed into the top of the Monterey target as quickly as possible to avoid problems with hole stability; (4) evaluation activities were reduced in scope; (5) geosteering observations for fracture access would be deduced from penetration rate, cuttings description and hydrocarbon in-flow; and (6) rather than use nitrogen, a novel air-injection MPD system was to be implemented. Drilling operations, delayed from the original schedule by capital constraints and lack of rig availability, were conducted from September 12 to November 11, 2004. The vertical and upper curved sections were drilled and lined through the problematic shale member without major stability problems. The top of the targeted Monterey was thought to be seen at the expected TVD of 10,000 ft where the 7-in. liner was set at a 60{sup o} hole angle. Significant oil and gas shows suggested the fractured interval anticipated at the heel location had been penetrated. A total of 2572 ft of 6 1/8-in. near-horizontal interval was placed in the shale section, extending planned well length by approximately 470 ft. Very little hydrocarbon in-flow was observed from fractures along the productive interval. This may be a result of the well trajectory falling underneath the Monterey fractured zone. Hydrocarbon observations, cuttings analysis and gamma-ray response indicated additional fractured intervals were accessed along the last {+-}900 ft of well length. The well was completed with a 2 7/8-in. tubing string set in a production packer in preparation for flow and swab tests to be conducted later by a service rig. The planned well time was estimated as 39 days and overall cost as $2.4 million. The actual results are 66 days at a total cost of $3.4 million. Well productivity responses during subsequent flow and swabbing tests were negative. The well failed to inflow and only minor amounts (a few barrels) of light oil were recovered. The lack of production may suggest that actual sustainable reservoir pressure is far less than anticipated. Temblor is currently planning to re-enter and clean out the well and run an Array Induction log (primarily for resistivity and correlation purposes), and an FMI log (for fracture detection). Depending on the results of these logs, an acidizing or re-drill program will be planned.

George Witter; Robert Knoll; William Rehm; Thomas Williams

2005-09-29T23:59:59.000Z

156

Exploration Best Practices  

Broader source: Energy.gov [DOE]

The purpose of this project is to provide an overview of currentt geoth thermall explloratiti on bbestt practi tices andd a baseline values for exploration (both non-drilling and drilling) success rates in the U.S.

157

Exploration and Development Techniques for Basin and Range Geothermal...  

Open Energy Info (EERE)

Abstract Abstract unavailable. Authors David D. Blackwell, Mark Leidig, Richard P. Smith, Stuart D. Johnson and Kenneth W. Wisian Conference GRC Annual Meeting; Reno, NV;...

158

Neutron Imaging Explored as Complementary Technique for Improving Cancer  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andDataNational Library of1, 2007Transmission toBeamN u

159

Innovative Exploration Techniques for Geothermal Assessment at Jemez  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 - 429 Throttled (bot load) ErrorEnergyInnovation Fuels Jump to: navigation,Pueblo,

160

Innovative Exploration Techniques for Geothermal Assessment at Jemez  

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

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We encourage you to perform a real-time search of NLEBeta
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161

Geothermal Exploration Techniques a Case Study. Final Report | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to: navigation, search OpenEI Reference LibraryAddInformation

162

Evaluation of the Mercury Soil Mapping Geothermal Exploration Techniques |  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37. It isInformationexplains a4 ClimateEtrionPower Pvt LtdAOpensolid

163

Exploration and Development Techniques for Basin and Range Geothermal  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37. It isInformationexplains a4Evendale, -EnergySonar Imaging,Systems:

164

DOWNHOLE VIBRATION MONITORING & CONTROL SYSTEM  

SciTech Connect (OSTI)

The deep hard rock drilling environment induces severe vibrations into the drillstring, which can cause reduced rates of penetration (ROP) and premature failure of the equipment. The only current means of controlling vibration under varying conditions is to change either the rotary speed or the weight-on-bit (WOB). These changes often reduce drilling efficiency. Conventional shock subs are useful in some situations, but often exacerbate the problems. The objective of this project is development of a unique system to monitor and control drilling vibrations in a ''smart'' drilling system. This system has two primary elements: (1) The first is an active vibration damper (AVD) to minimize harmful axial, lateral and torsional vibrations. The hardness of this damper will be continuously adjusted using a robust, fast-acting and reliable unique technology. (2) The second is a real-time system to monitor drillstring vibration, and related parameters. This monitor adjusts the damper according to local conditions. In some configurations, it may also send diagnostic information to the surface via real-time telemetry. The AVD is implemented in a configuration using magnetorheological (MR) fluid. By applying a current to the magnetic coils in the damper, the viscosity of the fluid can be changed rapidly, thereby altering the damping coefficient in response to the measured motion of the tool. Phase I of this program entailed modeling and design of the necessary subsystems and design, manufacture and test of a full laboratory prototype. Phase I of the project was completed by the revised end date of May 31, 2004. The objectives of this phase were met, and all prerequisites for Phase II have been completed.

Martin E. Cobern

2004-08-31T23:59:59.000Z

165

DOWNHOLE VIBRATION MONITORING & CONTROL SYSTEM  

SciTech Connect (OSTI)

The objective of this program is to develop a system to both monitor the vibration of a bottomhole assembly, and to adjust the properties of an active damper in response to these measured vibrations. Phase I of this program, which entailed modeling and design of the necessary subsystems and design, manufacture and test of a full laboratory prototype, was completed on May 31, 2004. The principal objectives of Phase II are: more extensive laboratory testing, including the evaluation of different feedback algorithms for control of the damper; design and manufacture of a field prototype system; and, testing of the field prototype in drilling laboratories and test wells. Work during this quarter centered on the rebuilding of the prototype using the improved valve design described in the last report. Most of the components have been received and assembly has begun. Testing is expected to resume in August. In April, a paper was presented at the American Association of Drilling Engineers National Technical Conference in Houston. The paper was well received, and several oilfield service and supply companies sent inquiries regarding commercial distribution of the system. These are currently being pursued, but none have yet been finalized.

Martin E. Cobern

2005-07-27T23:59:59.000Z

166

DOWNHOLE VIBRATION MONITORING & CONTROL SYSTEM  

SciTech Connect (OSTI)

The objective of this program is to develop a system to both monitor the vibration of a bottomhole assembly, and to adjust the properties of an active damper in response to these measured vibrations. Phase I of this program, which entailed modeling and design of the necessary subsystems and design, manufacture and test of a full laboratory prototype, was completed on May 31, 2004. The principal objectives of Phase II were: more extensive laboratory testing, including the evaluation of different feedback algorithms for control of the damper; design and manufacture of a field prototype system; and, testing of the field prototype in drilling laboratories and test wells. Phase II concluded on January 31, 2006. The month of January was devoted to the final preparations for, and conducting of testing of the DVMCS at TerraTek laboratories in Salt Lake City. This testing was concluded on January 27, 2006. Much of the effort in this period was then devoted to the analysis of the data and the preparation of the Phase II final report. The report was issued after the close of the period. Work on Phase III of the project began during this quarter. It has consisted of making some modifications in the prototype design to make it more suitable for field testing an more practical for commercial use. This work is continuing. The redesign effort, coupled with the current extreme lead times quoted by oilfield machine shops for collar components, will delay the deployment of the field prototypes. The precommercial prototypes are being developed in parallel, so the project should be completed per the current schedule.

Martin E. Cobern

2006-05-01T23:59:59.000Z

167

Downhole Vibration Monitoring & Control System  

SciTech Connect (OSTI)

The objective of this program is to develop a system to both monitor the vibration of a bottomhole assembly, and to adjust the properties of an active damper in response to these measured vibrations. Phase I of this program, which entailed modeling and design of the necessary subsystems and design, manufacture and test of a full laboratory prototype, was completed on May 31, 2004. The principal objectives of Phase II were: more extensive laboratory testing, including the evaluation of different feedback algorithms for control of the damper; design and manufacture of a field prototype system; and, testing of the field prototype in a drilling laboratory. Phase II concluded on January 31, 2006, and the Phase II final report was issued. Work on Phase III of the project began during the first quarter, 2006. Efforts the current quarter have continued to focus on the manufacture of the prototype and precommercial parts, field test planning and commercialization. The continued extreme lead times quoted by oilfield machine shops for collar components significantly delayed the deployment of the prototype and precommercial units. All parts have now been received for two units, and all but one for the third. Mechanical assembly of the first two systems is complete and the electronics installation and laboratory testing will be finished in April. We have entered into a Memorandum of Understanding with a major US oilfield equipment supplier, which calls for their assisting with our field tests, in cash and in kind. We are close to signing a definitive agreement which includes the purchase of the three precommercial units. We had also signed a CRADA with the Rocky Mountain Oilfield Test Center (RMOTC), and scheduled a test at their site, The RMOTC drilling schedule continues to slip, and the test cannot begin until the first week of May. Based on these factors, we have requested a no-cost extension to July 31, 2007.

Martin E. Cobern

2007-03-31T23:59:59.000Z

168

DOWNHOLE VIBRATION MONITORING & CONTROL SYSTEM  

SciTech Connect (OSTI)

The objective of this program is to develop a system to both monitor the vibration of a bottomhole assembly, and to adjust the properties of an active damper in response to these measured vibrations. Phase I of this program, which entailed modeling and design of the necessary subsystems and design, manufacture and test of a full laboratory prototype, was completed on May 31, 2004. The principal objectives of Phase II are: more extensive laboratory testing, including the evaluation of different feedback algorithms for control of the damper; design and manufacture of a field prototype system; and, testing of the field prototype in drilling laboratories and test wells. As a result of the lower than expected performance of the MR damper noted last quarter, several additional tests were conducted. These dealt with possible causes of the lack of dynamic range observed in the testing: additional damping from the oil in the Belleville springs; changes in properties of the MR fluid; and, residual magnetization of the valve components. Of these, only the last was found to be significant. By using a laboratory demagnetization apparatus between runs, a dynamic range of 10:1 was achieved for the damper, more than adequate to produce the needed improvements in drilling. Additional modeling was also performed to identify a method of increasing the magnetic field in the damper. As a result of the above, several changes were made in the design. Additional circuitry was added to demagnetize the valve as the field is lowered. The valve was located to above the Belleville springs to reduce the load placed upon it and offer a greater range of materials for its construction. In addition, to further increase the field strength, the coils were relocated from the mandrel to the outer housing. At the end of the quarter, the redesign was complete and new parts were on order. The project is approximately three months behind schedule at this time.

Martin E. Cobern

2005-04-27T23:59:59.000Z

169

Cooperative Exploration under Communication Constraints  

E-Print Network [OSTI]

process has not been fully characterized. Existing exploration algorithms do not realistically modelCooperative Exploration under Communication Constraints by Emily M. Craparo Submitted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . David Darmofal Chairman, Department Committee on Graduate Students #12;2 #12;Cooperative Exploration

How, Jonathan P.

170

EUROGRAPHICS 2007 Cultural Heritage Papers An Interactive Exploration of the  

E-Print Network [OSTI]

reconstruction and access supplemental historical background material on demand. With the multimedia installation we present a new experience which empowers visitors of the museum to explore an historical site exploration techniques, however, come at the price of complex interac- tion paradigms and costly equipment

Blanz, Volker

171

A Tool for Materials Exploration Dieter W. Heermann  

E-Print Network [OSTI]

into · preprocessing · simulation (production runs) · postprocessing Pre-processing prepA Tool for Materials Exploration Dieter W. Heermann Andreas Linke Christian Münkel Institut für) as well as visualisation techniques to explore materials. In this paper we describe the basic design

Heermann, Dieter W.

172

Innovative Exploration Technologies Subprogram Overview  

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

* Gathering data from the projects - Analyzing what works and what doesn't * Expand resource assessment and NGDS * Exploration best practices study * Baseline exploration...

173

Exploration Incentive Tax Credit (Montana)  

Broader source: Energy.gov [DOE]

The Mineral and Coal Exploration Incentive Tax Credit provides tax incentives to entities conducting exploration for minerals and coal. Expenditures related to the following activities are eligible...

174

Exploration for Uranium Ore (Virginia)  

Broader source: Energy.gov [DOE]

This legislation describes permitting procedures and requirements for exploration activities. For the purpose of this legislation, exploration is defined as the drilling of test holes or...

175

Black Warrior: Sub-soil gas and fluid inclusion exploration and...  

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

hydrocarbon, and isotope data to define possible upflow areas; Calibrate the sub-soil chemistry with down-hole fluid inclusion stratigraphy and fluid analyses to define a follow-up...

176

Exploring Civil and Environmental  

E-Print Network [OSTI]

Engineers % of Total Architectural, Engineering, and Related Services 135,000 53 Federal, State, and Local1 CEE 100 Exploring Civil and Environmental Engineering #12;CEE 100 Schedule--Winter 2010 https Geotechnical Engineering January 27 Steve Muench Construction Engineering February 3 Greg Miller Structural

177

Exploring Mars' Climate History  

E-Print Network [OSTI]

Exploring Mars' Climate History #12;2 Mars Reconnaissance Orbiter ESA Mars Express (NASA: MARSIS by studying the solar wind and other interactions with the Sun. #12;The solar wind is a high-speed stream of electrons and protons released from the Sun. #12;High-energy photons (light) stream constantly from the Sun

178

Exploring Functional Mellin Transforms  

E-Print Network [OSTI]

We define functional Mellin transforms within a scheme for functional integration proposed in [1]. Functional Mellin transforms can be used to define functional traces, logarithms, and determinants. The associated functional integrals are useful tools for probing function spaces in general and $C^\\ast$-algebras in particular. Several interesting aspects are explored.

J. LaChapelle

2015-01-08T23:59:59.000Z

179

Electrochemical Techniques  

SciTech Connect (OSTI)

Sensitive and selective detection techniques are of crucial importance for capillary electrophoresis (CE), microfluidic chips, and other microfluidic systems. Electrochemical detectors have attracted considerable interest for microfluidic systems with features that include high sensitivity, inherent miniaturization of both the detection and control instrumentation, low cost and power demands, and high compatibility with microfabrication technology. The commonly used electrochemical detectors can be classified into three general modes: conductimetry, potentiometry, and amperometry.

Chen, Gang; Lin, Yuehe

2008-07-20T23:59:59.000Z

180

Cerro Prieto geothermal field: exploration during exploitation  

SciTech Connect (OSTI)

Geological investigations at Momotombo included photogeology, field mapping, binocular microscope examination of cuttings, and drillhole correlations. Among the geophysical techniques used to investigate the field sub-structure were: Schlumberger and electromagnetic soundings, dipole mapping and audio-magnetotelluric surveys, gravity and magnetic measurements, frequency domain soundings, self-potential surveys, and subsurface temperature determinations. The geochemical program analyzed the thermal fluids of the surface and in the wells. The description and results of exploration methods used during the investigative stages of the Momotombo Geothermal Field are presented. A conceptual model of the geothermal field was drawn from the information available at each exploration phase. The exploration methods have been evaluated with respect to their contributions to the understanding of the field and their utilization in planning further development.

Not Available

1982-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

EXPLORATION Actual Estimate  

E-Print Network [OSTI]

FY 2015 FY 2016 FY 2017 FY 2013 President's Budget Request 3,821.2 3,712.8 3,932.8 4,076.5 4,076.5 4 Estimate Budget Authority (in $ millions) FY 2011 FY 2012 FY 2013 FY 2014 FY 2015 FY 2016 FY 2017 FY 2013EXPLORATION EXP-1 Actual Estimate Budget Authority (in $ millions) FY 2011 FY 2012 FY 2013 FY 2014

182

Snake River Geothermal Project- Innovative Approaches to Geothermal Exploration  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. Project objective: To Implement and Test Geological and Geophysical Techniques for Geothermal Exploration. Project seeks to lower the cost of geothermal energy development by identifying which surface and borehole techniques are most efficient at identifying hidden resources.

183

Directional drilling equipment and techniques for deep hot granite wells  

SciTech Connect (OSTI)

Conventional directional drilling technology has been extended and modified to drill the first well of a subsurface geothermal energy extraction system at the Fenton Hill, New Mexico, Hot dry Rock (HDR) experimental site. Completing the first of a two-wellbore HDR system has resulted in the definition of operational limitations of many conventional directional drilling tools, instrumentation and techniques. The successful completion of the first wellbore, Energy Extraction Well No. 2 (EE-2), to a measured depth of 15,300 ft (4.7 km) in granite reservoir rock with a bottomhole temperature of 530/sup 0/F (275/sup 0/C) required the development of a new high temperature downhole motor and modification of existing wireline-conveyed steering tool systems. Conventional rotary-driven directional assemblies were successfully modified to accommodate the very hard and abrasive rock encountered while drilling nearly 8500 ft (2.6 km) of directional hole to a final inclination of 35/sup 0/ from the vertical at a controlled azimuthal orientation.

Brittenham, T.L.; Sursen, G.; Neudecker, J.W.; Rowley, J.C.; Williams, R.E.

1980-01-01T23:59:59.000Z

184

Exploring colourful holographic superconductors  

E-Print Network [OSTI]

We explore a class of holographic superconductors built using non-abelian condensates on probe branes in conformal and non-conformal backgrounds. These are shown to exhibit behaviour of the specific heat which resembles that of heavy fermion compounds in the superconducting phase. Instead of showing BCS-like exponential behaviour, the specific heat is polynomial in the temperature. It exhibits a jump at the critical temperature, in agreement with real-world superconductors. We also analyse the behaviour of the energy gap and the AC and DC conductivities, and find that the systems can be either semi-conducting or metallic just above the critical temperature.

Kasper Peeters; Jonathan Powell; Marija Zamaklar

2009-07-09T23:59:59.000Z

185

Switzerland exploration may resume  

SciTech Connect (OSTI)

Since 1912, 35 wells have been drilled for oil and gas, 19 of them in the last 38 years. Eighty percent of these 19 wells had oil and/or gas shows, but only one was placed on production. The only gas discovery, Entlebuch-1, produced about 2.6 bcf of a high quality gas in 10 years. It was abandoned in 1994. This paper discusses why exploration waned. A second look at the data suggests Switzerland has a high potential for gas production.

Lahusen, P.H. [SEAG, Geneva (Switzerland)

1997-06-23T23:59:59.000Z

186

Revisiting the Tradespace Exploration Paradigm: Structuring the Exploration Process  

E-Print Network [OSTI]

Revisiting the Tradespace Exploration Paradigm: Structuring the Exploration Process Adam M. Ross in Tradespace Exploration · Question-guided TSE· Question-guided TSE · Discussion · Conclusion seari.mit.edu © 2010 Massachusetts Institute of Technology 2 #12;Introduction · Early design process is high leverage

de Weck, Olivier L.

187

INTERNATIONAL SPACE EXPLORATION COORDINATION GROUP  

E-Print Network [OSTI]

space exploration infrastructure standards facilitating interoperability through an international with relevant existing international working groups/ organisations. · Preparation and Organization of a WS1 INTERNATIONAL SPACE EXPLORATION COORDINATION GROUP WORKPLAN Update following 3rd ISECG Meeting

188

Innovative Exploration Technologies Subprogram Overview  

Broader source: Energy.gov [DOE]

This overview of GTP's Innovative Exploration Technologies subprogram was given at the GTP Program Peer Review on May 18, 2010.

189

SURFACE GEOPHYSICAL EXPLORATION - COMPENDIUM DOCUMENT  

SciTech Connect (OSTI)

This report documents the evolution of the surface geophysical exploration (SGE) program and highlights some of the most recent successes in imaging conductive targets related to past leaks within and around Hanford's tank farms. While it is noted that the SGE program consists of multiple geophysical techniques designed to (1) locate near surface infrastructure that may interfere with (2) subsurface plume mapping, the report will focus primarily on electrical resistivity acquisition and processing for plume mapping. Due to the interferences from the near surface piping network, tanks, fences, wells, etc., the results of the three-dimensional (3D) reconstruction of electrical resistivity was more representative of metal than the high ionic strength plumes. Since the first deployment, the focus of the SGE program has been to acquire and model the best electrical resistivity data that minimizes the influence of buried metal objects. Toward that goal, two significant advances have occurred: (1) using the infrastructure directly in the acquisition campaign and (2) placement of electrodes beneath the infrastructure. The direct use of infrastructure was successfully demonstrated at T farm by using wells as long electrodes (Rucker et al., 2010, 'Electrical-Resistivity Characterization of an Industrial Site Using Long Electrodes'). While the method was capable of finding targets related to past releases, a loss of vertical resolution was the trade-off. The burying of electrodes below the infrastructure helped to increase the vertical resolution, as long as a sufficient number of electrodes are available for the acquisition campaign.

RUCKER DF; MYERS DA

2011-10-04T23:59:59.000Z

190

Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power Basics (The followingDirectLow CarbonOpen1Model | Exploration Technique:

191

Relevance of Massively Distributed Explorations  

E-Print Network [OSTI]

that this exploration process gives a partial and biased view of the real topology, which leads to the idea links) and may be biased by the exploration process (some properties of the obtained map may be induced induced by the exploration process. In order to improve these maps, several re- searchers and groups now

Paris-Sud XI, Université de

192

Relevance of Massively Distributed Explorations  

E-Print Network [OSTI]

that this exploration process gives a partial and biased view of the real topology, which leads to the idea links) and may be biased by the exploration process (some properties of the obtained map may be induced induced by the exploration process. In order to improve these maps, several re- searchers and groups no

Paris-Sud XI, Université de

193

Polar Explorer References Raold Amundsen  

E-Print Network [OSTI]

-15, 2003, 1 h 19 min. * National Geographic May 2009, concerning claims of Arctic Ocean oil and gasPolar Explorer References Raold Amundsen My Life as an Explorer, Raold Amundsen The Red Tent.L. Berens [This book includes other historic polar explorers] * National Geographic Jan. 2009 (2 articles

Fabrikant, Sara Irina

194

The Extreme Physics Explorer  

E-Print Network [OSTI]

Some tests of fundamental physics - the equation of state at supra-nuclear densities, the metric in strong gravity, the effect of magnetic fields above the quantum critical value - can only be measured using compact astrophysical objects: neutron stars and black holes. The Extreme Physics Explorer is a modest sized (~500 kg) mission that would carry a high resolution (R ~300) X-ray spectrometer and a sensitive X-ray polarimeter, both with high time resolution (~5 ?s) capability, at the focus of a large area (~5 sq.m), low resolution (HPD~1 arcmin) X-ray mirror. This instrumentation would enable new classes of tests of fundamental physics using neutron stars and black holes as cosmic laboratories.

Martin Elvis

2006-08-25T23:59:59.000Z

195

Exploration geochemistry: The Los Alamos experience  

SciTech Connect (OSTI)

Los Alamos National Laboratory became actively involved in geochemical exploration in 1975 by conducting a reconnaissance-scale exploration program for uranium as part of the National Uranium Resource Evaluation program. Initially, only uranium and thorium were analyzed. By 1979 Los Alamos was analyzing a multielement suite. The data were presented in histograms and as black and white concentration plots for uranium and thorium only. Data for the remaining elements were presented as hard copy data listings in an appendix to the report. In 1983 Los Alamos began using exploration geochemistry for the purpose of finding economic mineral deposits to help stimulate the economies of underdeveloped countries. Stream-sediment samples were collected on the Caribbean island of St. Lucia and a geochemical atlas of that island was produced. The data were statistically smoothed and presented as computer-generated color plots of each element of the multielement suite. Studies for the US Bureau of Land Management in 1984 consisted of development of techniques for the integration of several large data sets, which could then be used for computer-assisted mineral resource assessments. A supervised classification technique was developed which compares the attributes of grid cells containing mines or mineral occurrences with attributes of unclassified cells not known to contain mines or occurrences. Color maps indicate how closely unclassified cells match in attributes the cells with mines or occurrences. 20 refs., 1 fig., 1 tab.

Maassen, L.W.; Bolivar, S.L.

1989-01-01T23:59:59.000Z

196

As printed in IEEE Visualization 2000 A Spreadsheet Interface for Visualization Exploration  

E-Print Network [OSTI]

and interaction techniques that ex- pedite the process of exploring that data must receive new attention efforts have been devoted to storing and presenting the data exploration process itself. This information through a set of examples. During the data exploration process, a user attempts to discover a set

Jankun-Kelly, T. J.

197

ADVANCED TECHNIQUES FOR RESERVOIR SIMULATION AND MODELING OF NONCONVENTIONAL WELLS  

SciTech Connect (OSTI)

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.

Louis J. Durlofsky; Khalid Aziz

2004-08-20T23:59:59.000Z

198

ADVANCED RADIOISOTOPE HEAT SOURCE AND PROPULSION SYSTEMS FOR PLANETARY EXPLORATION  

SciTech Connect (OSTI)

The exploration of planetary surfaces and atmospheres may be enhanced by increasing the range and mobility of a science platform. Fundamentally, power production and availability of resources are limiting factors that must be considered for all science and exploration missions. A novel power and propulsion system is considered and discussed with reference to a long-range Mars surface exploration mission with in-situ resource utilization. Significance to applications such as sample return missions is also considered. Key material selections for radioisotope encapsulation techniques are presented.

R. C. O'Brien; S. D. Howe; J. E. Werner

2010-09-01T23:59:59.000Z

199

Radioisotopes: Energy for Space Exploration  

ScienceCinema (OSTI)

Through a strong partnership between the Energy Department's office of Nuclear Energy and NASA, Radioisotope Power Systems have been providing the energy for deep space exploration.

Carpenter, Bob; Green, James; Bechtel, Ryan

2013-05-29T23:59:59.000Z

200

Exploring Dark Energy with SNAP  

E-Print Network [OSTI]

weak lensing survey. The planned dark energy program forthe Joint Dark Energy Mission (JDEM) will produce a treasureLBNL- 58276 Exploring Dark Energy with SNAP G. Aldering

Aldering, G.

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Revisiting the Tradespace Exploration Paradigm: Structuring the Exploration Process  

E-Print Network [OSTI]

A number of case applications of tradespace exploration have further extended the types of analyses and knowledge insights that can be gained about tradeoffs between design choices and perceived utility and cost of ...

Ross, Adam Michael

202

Swarming Behavior Using Probabilistic Roadmap Techniques  

E-Print Network [OSTI]

Swarming Behavior Using Probabilistic Roadmap Techniques O. Bur¸chan Bayazit1 , Jyh-Ming Lien2 behaviors: homing, exploring (covering and goal searching), passing through narrow areas and shepherding. We consider several different behaviors: homing, goal searching, covering, passing through narrow passages

Lien, Jyh-Ming

203

Surface space : digital manufacturing techniques and emergent building material  

E-Print Network [OSTI]

This thesis explores tectonic possibilities of new material and forming techniques. The design process is catalyzed by experimenting different configurations of the material.This project attempts to develop inventive ways ...

Ho, Joseph Chi-Chen, 1975-

2002-01-01T23:59:59.000Z

204

Robust techniques for developing empirical models of fluidized bed combustors  

E-Print Network [OSTI]

This report is designed to provide a review of those data analysis techniques that are most useful for fitting m-dimensional empirical surfaces to very large sets of data. One issue explored is the improvement

Gruhl, Jim

205

Exploring the magnetic topologies of cool stars  

E-Print Network [OSTI]

Magnetic fields of cool stars can be directly investigated through the study of the Zeeman effect on photospheric spectral lines using several approaches. With spectroscopic measurement in unpolarised light, the total magnetic flux averaged over the stellar disc can be derived but very little information on the field geometry is available. Spectropolarimetry provides a complementary information on the large-scale component of the magnetic topology. With Zeeman-Doppler Imaging (ZDI), this information can be retrieved to produce a map of the vector magnetic field at the surface of the star, and in particular to assess the relative importance of the poloidal and toroidal components as well as the degree of axisymmetry of the field distribution. The development of high-performance spectropolarimeters associated with multi-lines techniques and ZDI allows us to explore magnetic topologies throughout the Hertzsprung-Russel diagram, on stars spanning a wide range of mass, age and rotation period. These observations b...

Morin, J; Petit, P; Albert, L; Auriere, M; Cabanac, R; Catala, C; Delfosse, X; Dintrans, B; Fares, R; Forveille, T; Gastine, T; Jardine, M; Konstantinova-Antova, R; Lanoux, J; Lignieres, F; Morgenthaler, A; Paletou, F; Velez, J C Ramirez; Solanki, S K; Theado, S; Van Grootel, V

2010-01-01T23:59:59.000Z

206

Transitioning the Transportation Sector: Exploring the Intersection...  

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

the Transportation Sector: Exploring the Intersection of Hydrogen Fuel Cell and Natural Gas Vehicles Transitioning the Transportation Sector: Exploring the Intersection...

207

Geothermal Exploration Best Practices Webinar Presentation Now...  

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

Exploration Best Practices Webinar Presentation Now Available Geothermal Exploration Best Practices Webinar Presentation Now Available April 12, 2012 - 3:08pm Addthis Presentation...

208

Evolutionary Robotics: Exploring New Horizons  

E-Print Network [OSTI]

Chapter 1 Evolutionary Robotics: Exploring New Horizons St´ephane Doncieux, Jean-Baptiste Mouret, Nicolas Bredeche, and Vincent Padois Abstract. This paper considers the field of Evolutionary Robotics (ER of research is discussed, as well as the potential use of ER in a robot design process. Four main aspects

Paris-Sud XI, Université de

209

Edinburgh Research Explorer Money Cycles  

E-Print Network [OSTI]

Edinburgh Research Explorer Money Cycles Citation for published version: Clausen, A & Strub, C 2014 'Money Cycles' Edinburgh School of Economics Discussion Paper Series. Link: Link to publication record date: 11. Dec. 2014 #12;Edinburgh School of Economics Discussion Paper Series Number 249 Money Cycles

Millar, Andrew J.

210

Assessor Training Assessment Techniques  

E-Print Network [OSTI]

NVLAP Assessor Training Assessment Techniques: Communication Skills and Conducting an Assessment listener ·Knowledgeable Assessor Training 2009: Assessment Techniques: Communication Skills & Conducting, truthful, sincere, discrete · Diplomatic · Decisive · Selfreliant Assessor Training 2009: Assessment

211

7 Efficient Exploration 7.1 Overview  

E-Print Network [OSTI]

Methods: Here a more global view of the process is taken, and the schemes are directly designed to explore7 Efficient Exploration 7.1 Overview Efficient exploration of the action and state space is a crucial factor in the convergence rate of a learning scheme. An early survey of early exploration methods

Shimkin, Nahum

212

Genability Explorer | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, searchGeauga County, Ohio: Energy Resources Jump to:Genability Explorer

213

Development of a HT seismic downhole tool.  

SciTech Connect (OSTI)

Enhanced Geothermal Systems (EGS) require the stimulation of the drilled well, likely through hydraulic fracturing. Whether fracturing of the rock occurs by shear destabilization of natural fractures or by extensional failure of weaker zones, control of the fracture process will be required to create the flow paths necessary for effective heat mining. As such, microseismic monitoring provides one method for real-time mapping of the fractures created during the hydraulic fracturing process. This monitoring is necessary to help assess stimulation effectiveness and provide the information necessary to properly create the reservoir. In addition, reservoir monitoring of the microseismic activity can provide information on reservoir performance and evolution over time. To our knowledge, no seismic tool exists that will operate above 125 C for the long monitoring durations that may be necessary. Replacing failed tools is costly and introduces potential errors such as depth variance, etc. Sandia has designed a high temperature seismic tool for long-term deployment in geothermal applications. It is capable of detecting microseismic events and operating continuously at temperatures up to 240 C. This project includes the design and fabrication of two High Temperature (HT) seismic tools that will have the capability to operate in both temporary and long-term monitoring modes. To ensure the developed tool meets industry requirements for high sampling rates (>2ksps) and high resolution (24-bit Analog-to-Digital Converter) two electronic designs will be implemented. One electronic design will utilize newly developed 200 C electronic components. The other design will use qualified Silicon-on-Insulator (SOI) devices and will have a continuous operating temperature of 240 C.

Maldonado, Frank P.; Greving, Jeffrey J.; Henfling, Joseph Anthony; Chavira, David J.; Uhl, James Eugene; Polsky, Yarom

2009-06-01T23:59:59.000Z

214

Acoustical Communications for Wireless Downhole Telemetry Systems  

E-Print Network [OSTI]

on this testbed in order to characterize the channel behavior are explained as well. Moreover, the large scale statistics of the acoustic waves along the pipe string are described. Results of this work indicate that acoustic waves experience a frequency- dependent...

Farraj, Abdallah

2012-08-22T23:59:59.000Z

215

Link module for a downhole drilling network  

DOE Patents [OSTI]

A repeater is disclosed in one embodiment of the present invention as including a cylindrical housing, characterized by a proximal end and a distal end, and having a substantially cylindrical wall, the cylindrical wall defining a central bore passing therethrough. The cylindrical housing is formed to define at least one recess in the cylindrical wall, into which a repeater is inserted. The cylindrical housing also includes an annular recess formed into at least one of the proximal end and the distal end. An annular transmission element, operably connected to the repeater, is located in the annular recess. In selected embodiments, the annular transmission element inductively converts electrical energy to magnetic energy. In other embodiments, the annular transmission element includes an electrical contact to transmit electrical energy directly to another contact.

Hall, David R. (Provo, UT); Fox, Joe (Provo, UT)

2007-05-29T23:59:59.000Z

216

DOWNHOLE VIBRATION MONITORING AND CONTROL SYSTEM  

SciTech Connect (OSTI)

The purpose of this program is to develop the Drilling Vibration Monitoring & Control System (DVMCS) to both record and reduce drilling vibrations in a ''smart'' drill string. It is composed of two main elements. The first is a multi-axis active vibration damper to minimize harmful axial, lateral and torsional vibrations, and thereby increase both rate of penetration (ROP) and bit life, as well that the life of other drillstring components. The hydraulic impedance (hardness) of this damper will be continuously adjusted using unique technology that is robust, fast-acting and reliable. The second component is a real-time system to monitor 3-axis drillstring vibration, and related parameters including weight- and torque-on-bit (TOB) and temperature. This monitor will determine the current vibration environment and adjust the damper accordingly. In some configurations, it may also send diagnostic information to the surface via real-time telemetry. Phase I of this program addresses an evaluation of the environment in which the DVMCS will operate; modeling of a drillstring response including the active damper; a top-level design of the mechanical and electronic systems; analyzing the anticipated performance of the damper by modeling and laboratory testing of small prototypes; and doing preliminary economic, market, environmental and financing analyses. This phase is scheduled to last fourteen months, until November 30, 2003. During this first quarter, significant progress was achieved on the first two objectives, and work was begun on several others. Initial designs of the DVMCS are underway.

Martin E. Cobern

2003-02-01T23:59:59.000Z

217

Down-hole periodic seismic generator  

DOE Patents [OSTI]

A down hole periodic seismic generator system is disclosed for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head by support and electrical cabling and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.

Hardee, H.C.; Hills, R.G.; Striker, R.P.

1982-10-28T23:59:59.000Z

218

Downhole Fluid Sampling | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump to:52c8ff988c1DeringDolgeville,Massachusetts: EnergyKokam

219

Downhole Fluid Sampling | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump to:52c8ff988c1DeringDolgeville,Massachusetts: EnergyKokam

220

Multipurpose Acoustic Sensor for Downhole Fluid Monitoring  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32Department ofMoving Away fromMultifamilyMultipurpose Acoustic

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Sandia National Laboratories: Explore Sandia  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive SolarEducation Programs:CRFProvideAids EnergyUFDSunShot OnEnergyEventsExplore

222

Synchrotrons Explore Water's Molecular Mysteries  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus TomAbout »LabSustainability AmesSynchrotrons Explore Water's

223

Synchrotrons Explore Water's Molecular Mysteries  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus TomAbout »LabSustainability AmesSynchrotrons Explore

224

FTN4 OPTIMIZATION TECHNIQUES.  

E-Print Network [OSTI]

3 1st Edition FTN4 OPTIMIZATION TECHNIQUES November 1979O. INTRODUCTION 1. COt1PILER OPTIMIZATIONS 2. SOURCE CODEcode. Most of these optimizations decrease central processor

Authors, Various

2012-01-01T23:59:59.000Z

225

EXPLORATION ACTIVITY WORKSHEET Purpose: The exploration activity is designed for students to "explore" opportunities at UM as they  

E-Print Network [OSTI]

EXPLORATION ACTIVITY WORKSHEET Purpose: The exploration activity is designed for students to "explore" opportunities at UM as they relate to student success, majors, careers of interest and other of their academic development and thus, you and your advisor will determine what type of activity or process you

Hill, Wendell T.

226

Design exploration: engaging a larger user population  

E-Print Network [OSTI]

. One challenge to such an approach is how software designers make use of the potentially overwhelming combination of text, graphics, and other content. The Design Exploration process provides users and other stakeholders the Design Exploration Builder...

Moore, John Michael

2009-06-02T23:59:59.000Z

227

Integrated Chemical Geothermometry System for Geothermal Exploration  

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

interpretations) * Reduce exploration and development costs Innovation * Numerical optimization of multicomponent chemical geothermometry at multiple locations * Integration with...

228

Contamination Control Techniques  

SciTech Connect (OSTI)

Welcome to a workshop on contamination Control techniques. This work shop is designed for about two hours. Attendee participation is encouraged during the workshop. We will address different topics within contamination control techniques; present processes, products and equipment used here at Hanford and then open the floor to you, the attendees for your input on the topics.

EBY, J.L.

2000-05-16T23:59:59.000Z

229

Object Exploration By Purposive, Dynamic Viewpoint Adjustment  

E-Print Network [OSTI]

. Unlike previous approaches where exploration is cast as a discrete process (i.e., asking where to look on the object surface that are occluded when the exploration process is initiated. Our goal is to designObject Exploration By Purposive, Dynamic Viewpoint Adjustment Kiriakos N. Kutulakos Charles R. Dyer

Dyer, Charles R.

230

Power options for lunar exploration  

SciTech Connect (OSTI)

This paper presents an overview of the types of power systems available for providing power on the moon. Lunar missions of exploration, in situ resource utilization, and colonization will be constrained by availability of adequate power. The length of the lunar night places severe limitations on solar power system designs, because a large portion of the system mass is devoted to energy storage. The selection of the ideal power source hardware will require compatibility with not only the lunar base power requirements and environment, but also with the conversion, storage, and transmission equipment. In addition, further analysis to determine the optimum operating parameters for a given power system should be conducted so that critical technologies can be identified in the early stages of base development. This paper describes the various concepts proposed for providing power on the lunar surface and compare their ranges of applicability. The importance of a systems approach to the integration of these components will also be discussed.

Bamberger, J.A.; Gaustad, K.L.

1992-01-01T23:59:59.000Z

231

Stochastic resonance for exploration geophysics  

E-Print Network [OSTI]

Stochastic resonance (SR) is a phenomenon in which signal to noise (SN) ratio gets improved by noise addition rather than removal as envisaged classically. SR was first claimed in climatology a few decades ago and then in other disciplines as well. The same as it is observed in natural systems, SR is used also for allowable SN enhancements at will. Here I report a proof of principle that SR can be useful in exploration geophysics. For this I perform high frequency GaussVanicek variance spectral analyses (GVSA) of model traces characterized by varying levels of complexity, completeness and pollution. This demonstration justifies all further research on SR in applied geophysics, as energy demands and depletion of reachable supplies potentially make SR vital in a near future.

Omerbashich, Mensur

2008-01-01T23:59:59.000Z

232

Determining Multilayer Formation Properties from Transient Temperature and Pressure Measurements  

E-Print Network [OSTI]

. In recent years, with a popular application of intelligent wells in oil and gas industry, some new techniques have been introduced for downhole temperature monitoring, and downhole temperature has started attracting interest again as an effective tool....2.1 Multilayer Transient Test ....................................................................... 2 1.2.2 Downhole Temperature Monitoring ...................................................... 4 1.2.3 Transient Temperature Modeling...

Sui, Weibo

2010-10-12T23:59:59.000Z

233

Child Guidance Techniques.  

E-Print Network [OSTI]

TDOC Z TA24S.7 8873 NO.1314 Child Guidance Techniques The Texas MM University System ~ Texas Agricultural Extension Service DMia! C. Pfannstiel . Director College Station B-1314 ... 2 Contents Helpful Guidance T echniques...

Fraiser, Roberta C.

1982-01-01T23:59:59.000Z

234

Enterprise, Shell scheduled to explore Romanian acreage  

SciTech Connect (OSTI)

This paper reports that the pace of exploration is packing up in Romania's offshore and onshore sectors. Enterprise Oil Exploration Ltd., London, signed an exploration and production sharing agreement with state owned Rompetrol SA for two Black Sea blocks, Nos. XIII and XV, covering 3,000 sq km and 4,000 sq km, respectively. Shell Romania Exploration BV agreed with Rompetrol on an exploration and production sharing agreement for onshore Block 10. This covers 6,150 sq km in northern Transylvania. Shell's target will be deep formations underlying producing gas zones. Enterprise has a 65% share as operator of Blocks XIII and XV, while partner CanadianOxy (Romania) Ltd. holds the remaining 35%. Exploration and development costs will be borne by the license partners, while Rompetrol will take a share of any production.

Not Available

1992-08-17T23:59:59.000Z

235

Draft Innovative Exploration Technologies Needs Assessment |...  

Energy Savers [EERE]

Program June 6 - 10, 2011 The Dixie Valley Geothermal Plant in Nevada produces 60 MW of electricity. A Roadmap for Strategic Development of Geothermal Exploration Technologies...

236

Integrated Geoscience Investigation and Geothermal Exploration...  

Open Energy Info (EERE)

Geoscience Investigation and Geothermal Exploration at Chena Hot Springs, Alaska Abstract This document represents the final report for Phase I of the Chena Hot Springs...

237

Final Scientific - Technical Report, Geothermal Resource Exploration...  

Open Energy Info (EERE)

Geothermal Resource Exploration Program, Truckhaven Area, Imperial County, California Abstract With financial support from the U.S. Department of Energy (DOE), Layman Energy...

238

Draft Needs Assessment for Innovative Exploration Technologies...  

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

efforts to spur the U.S. geothermal industry to seek green field resources by lowering exploration risks and costs through research, development and demonstration. The...

239

ITP Mining: Exploration and Mining Technology Roadmap  

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

disturbance. Low-Cost and Efficient Production- Use advanced technologies to improve process efficiencies from exploration to final product. Advanced Products- Maintain and...

240

Geographic Information Systems- Tools For Geotherm Exploration...  

Open Energy Info (EERE)

Systems- Tools For Geotherm Exploration, Tracers Data Analysis, And Enhanced Data Distribution, Visualization, And Management Jump to: navigation, search OpenEI Reference...

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Visual exploration of 2D autonomous dynamical systems  

E-Print Network [OSTI]

In an introductory course on dynamical systems or Hamiltonian mechanics, vector field diagrams are a central tool to show a system's qualitative behaviour in a certain domain. Because of their low sampling rates and the involved issues of vector normalization, these plots give only a coarse insight and are unable to convey the vector field behaviour at locations with high variation, in particular in the neighborhood of critical points. Similarly, automatic generation of phase portraits based on traditional sampling cannot precisely capture separatrices or limit cylces. In this paper, we present ASysViewer, an application for the interactive visual exploration of two-dimensional autonomous dynamical systems using line integral convolution techniques for visualization, and grid-based techniques to extract critical points and separatrices. ASysViewer is addressed to undergraduate students during their first course in dynamical systems or Hamiltonian mechanics.

Müller, Thomas

2015-01-01T23:59:59.000Z

242

E-Print Network 3.0 - advanced testing techniques Sample Search...  

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

Collection: Engineering 15 Power-Aware Test Planning in the Early System-on-Chip Design Exploration Process Summary: a technique for modular core-based SoCs where test design is...

243

Explorations of Space-Charge Limits in Parallel-Plate Diodes and Associated Techniques for Automation  

E-Print Network [OSTI]

satisfying PCE emission scheme. . . . . . . . . . . . . . .charge weighted to nodes with PCE for linear Q(x). . . . .4.1 DCE and PCE emission on the Yee mesh, showing the di?

Ragan-Kelley, Benjamin

2013-01-01T23:59:59.000Z

244

National forecast for geothermal resource exploration and development with techniques for policy analysis and resource assessment  

SciTech Connect (OSTI)

The backgrund, structure and use of modern forecasting methods for estimating the future development of geothermal energy in the United States are documented. The forecasting instrument may be divided into two sequential submodels. The first predicts the timing and quality of future geothermal resource discoveries from an underlying resource base. This resource base represents an expansion of the widely-publicized USGS Circular 790. The second submodel forecasts the rate and extent of utilization of geothermal resource discoveries. It is based on the joint investment behavior of resource developers and potential users as statistically determined from extensive industry interviews. It is concluded that geothermal resource development, especially for electric power development, will play an increasingly significant role in meeting US energy demands over the next 2 decades. Depending on the extent of R and D achievements in related areas of geosciences and technology, expected geothermal power development will reach between 7700 and 17300 Mwe by the year 2000. This represents between 8 and 18% of the expected electric energy demand (GWh) in western and northwestern states.

Cassel, T.A.V.; Shimamoto, G.T.; Amundsen, C.B.; Blair, P.D.; Finan, W.F.; Smith, M.R.; Edeistein, R.H.

1982-03-31T23:59:59.000Z

245

Explorations of Space-Charge Limits in Parallel-Plate Diodes and Associated Techniques for Automation  

E-Print Network [OSTI]

Fernando Pérez, my mentors in IPython, without whom I wouldNumPy, matplotlib, and IPython. Cython makes the transitionnumber of analysis tools. e IPython Notebook, in particular,

Ragan-Kelley, Benjamin

2013-01-01T23:59:59.000Z

246

Exploring NoC Mapping Strategies: An Energy and Timing Aware Technique  

E-Print Network [OSTI]

Complex applications implemented as Systems on Chip (SoCs) demand extensive use of system level modeling and validation. Their implementation gathers a large number of complex IP cores and advanced interconnection schemes, such as hierarchical bus architectures or networks on chip (NoCs). Modeling applications involves capturing its computation and communication characteristics. Previously proposed communication weighted models (CWM) consider only the application communication aspects. This work proposes a communication dependence and computation model (CDCM) that can simultaneously consider both aspects of an application. It presents a solution to the problem of mapping applications on regular NoCs while considering execution time and energy consumption. The use of CDCM is shown to provide estimated average reductions of 40% in execution time, and 20% in energy consumption, for current technologies.

Marcon, Cesar; Moraes, Fernando; Susin, Altamiro; Reis, Igor; Hessel, Fabiano

2011-01-01T23:59:59.000Z

247

Exploring Early Evaluation Techniques of Ambient Health Promoting Devices in Home Environments of Senior  

E-Print Network [OSTI]

Plant and the MiMo (Mirror Motive). We used technology probe for early evaluation of the Ambient Plant of a familiar domestic object and practice. 2.1 Prototyping method for Ambient Plant: Technology Probe We upon the existing conceptual models of health monitoring ambient devices. Categories and Subject

Connelly, Kay

248

Advanced InSAR Techniques for Geothermal Exploration and Production | Open  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWaterBrasil Jump to:Iowa ASHRAEAddis, LA)AdobeFuel Cell

249

Galaxy Redshifts: Improved Techniques  

E-Print Network [OSTI]

This paper analyses the effects of random noise in determining errors and confidence levels for galaxy redshifts obtained by cross-correlation techniques. The main finding is that confidence levels have previously been overestimated, and errors inaccurately calculated in certain applications. New formul\\ae\\ are presented.

A. F. Heavens

1993-05-26T23:59:59.000Z

250

Infrared Inspection Techniques  

E-Print Network [OSTI]

. By means of a TV monitor tube, a thermal picture is formed where lighter parts represent areas with higher temperatures. Absolute temperature levels of objects can be measured with this technique from -300C to +20000C. A conventional camera is attached...

Hill, A. B.; Bevers, D. V.

1979-01-01T23:59:59.000Z

251

FACILITIES INSTRUCTIONS, STANDARDS, & TECHNIQUES  

E-Print Network [OSTI]

to the repair of hydraulic turbine runners and large pump impellers. Reclamation operates and maintains a wideFACILITIES INSTRUCTIONS, STANDARDS, & TECHNIQUES VOLUME 2-5 TURBINE REPAIR Internet Version variety of reaction and impulse turbines as well as axial flow, mixed flow, radial flow pumps and pump

Laughlin, Robert B.

252

Aluminum: Principled Scenario Exploration through Minimality  

E-Print Network [OSTI]

Aluminum: Principled Scenario Exploration through Minimality Tim Nelson1, Salman Saghafi1, Daniel J. We present Aluminum, a modification of Alloy that presents only minimal scenarios: those that contain no more than is necessary. Aluminum lets users explore the scenario space by adding to scenarios

Dougherty, Daniel J.

253

Aluminum: Principled Scenario Exploration through Minimality  

E-Print Network [OSTI]

Aluminum: Principled Scenario Exploration through Minimality Tim Nelson1, Salman Saghafi1, Daniel J Aluminum, a modification of Alloy that presents only minimal scenarios: those that contain no more than is necessary. Aluminum lets users explore the scenario space by adding to scenarios and backtracking. It also

Krishnamurthi, Shriram

254

Automated Architectural Exploration for Signal Processing Algorithms  

E-Print Network [OSTI]

Automated Architectural Exploration for Signal Processing Algorithms Ramsey Hourani, Ravi Jenkal, W processing algorithms. The goal of our framework is to improve hardware architectural exploration by guiding Property (IP) cores for system level signal processing algorithms. We present our view of a framework

Davis, Rhett

255

Edinburgh Research Explorer Probabilistic Programming Process Algebra  

E-Print Network [OSTI]

Edinburgh Research Explorer Probabilistic Programming Process Algebra Citation for published version: Georgoulas, A, Hillston, J, Milios, D & Sanguinetti, G 2014, 'Probabilistic Programming Process.1007/978-3-319-10696-0_21 Link: Link to publication record in Edinburgh Research Explorer Document Version: Preprint (usually

Millar, Andrew J.

256

Nuclear Engineering Division Think, explore, discover, innovate  

E-Print Network [OSTI]

Nuclear Engineering Division Think, explore, discover, innovate Never miss important updates managed by UChicago Argonne, LLC 1 Nuclear Engineering Division: Awards Listing (1980 ­ present) Web: http Division of Educational Programs J.C. Braun L.W. Deitrich #12;Nuclear Engineering Division Think, explore

Kemner, Ken

257

Geothermal Technologies Office: Projects  

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

Exploration Technologies (6) Geopressured Resources (1) Geothermal Analysis (14) Heat Pumps (8) High-Temperature Cements (2) High-Temperature Downhole MWD Tools for...

258

Query Optimization Techniques Class Hierarchies  

E-Print Network [OSTI]

Query Optimization Techniques Exploiting Class Hierarchies Sophie Cluet 1 Guido Moerkotte 2 1 INRIA Since the introduction of object base management systems (OBMS), many query optimization techniques tailored for object query languages have been proposed. They adapt known optimization techniques

Mannheim, Universität

259

ADULT ATTACHMENT AND EXPLORATION: THE EFFECT OF ATTACHMENT STYLE ON THE EXPERIENCE OF EXPLORATION  

E-Print Network [OSTI]

According to attachment theory a key moderator in the enjoyment of exploration is the strength of a person's secure base. To study exploration we placed participants in a situation in which they confronted a novel stimulus. We also gathered self...

Martin, Archibald M.

2010-07-14T23:59:59.000Z

260

Exploring the Raft River geothermal area, Idaho, with the dc...  

Open Energy Info (EERE)

SURVEYS; IDAHO; GEOTHERMAL EXPLORATION; RAFT RIVER VALLEY; ELECTRIC CONDUCTIVITY; GEOTHERMAL WELLS; KGRA; TEMPERATURE MEASUREMENT; ELECTRICAL PROPERTIES; EXPLORATION; GEOPHYSICAL...

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

ULYSSES BEGINS EXPLORATION OF THE SUN'S NORTHERN POLE The Ulysses spacecraft has begun to explore the  

E-Print Network [OSTI]

ULYSSES BEGINS EXPLORATION OF THE SUN'S NORTHERN POLE The Ulysses spacecraft has begun to explore the northern pole of the Sun, initiating the second phase of its primary mission to study regions above and below the Sun never before explored by spacecraft. Ulysses, a joint NASA-European Space Agency mission

Christian, Eric

262

Resin infiltration transfer technique  

DOE Patents [OSTI]

A process has been developed for fabricating composite structures using either reaction forming or polymer infiltration and pyrolysis techniques to densify the composite matrix. The matrix and reinforcement materials of choice can include, but are not limited to, silicon carbide (SiC) and zirconium carbide (ZrC). The novel process can be used to fabricate complex, net-shape or near-net shape, high-quality ceramic composites with a crack-free matrix.

Miller, David V. (Pittsburgh, PA); Baranwal, Rita (Glenshaw, PA)

2009-12-08T23:59:59.000Z

263

Image compression technique  

DOE Patents [OSTI]

An image is compressed by identifying edge pixels of the image; creating a filled edge array of pixels each of the pixels in the filled edge array which corresponds to an edge pixel having a value equal to the value of a pixel of the image array selected in response to the edge pixel, and each of the pixels in the filled edge array which does not correspond to an edge pixel having a value which is a weighted average of the values of surrounding pixels in the filled edge array which do correspond to edge pixels; and subtracting the filled edge array from the image array to create a difference array. The edge file and the difference array are then separately compressed and transmitted or stored. The original image is later reconstructed by creating a preliminary array in response to the received edge file, and adding the preliminary array to the received difference array. Filling is accomplished by solving Laplace`s equation using a multi-grid technique. Contour and difference file coding techniques also are described. The techniques can be used in a method for processing a plurality of images by selecting a respective compression approach for each image, compressing each of the images according to the compression approach selected, and transmitting each of the images as compressed, in correspondence with an indication of the approach selected for the image. 16 figs.

Fu, C.Y.; Petrich, L.I.

1997-03-25T23:59:59.000Z

264

Exploring Dependence with Data on Spatial Mark S. Kaiser and Petruta C. Caragea  

E-Print Network [OSTI]

Exploring Dependence with Data on Spatial Lattices Mark S. Kaiser and Petrut¸a C. Caragea field models to problems involving spatial data on lattice systems requires decisions regarding a number of important aspects of model structure. Existing exploratory techniques appropriate for spatial data do

265

Toward Systems Biology in Brown Algae to Explore Acclimation and Adaptation to the Shore Environment  

E-Print Network [OSTI]

Toward Systems Biology in Brown Algae to Explore Acclimation and Adaptation to the Shore,2 Catherine Boyen,1,2 and Anne Siegel4,5 Abstract Brown algae belong to a phylogenetic lineage distantly siliculosus as a model organism for brown algae has represented a framework in which several omics techniques

Paris-Sud XI, Université de

266

Adventures in supercomputing: Scientific exploration in an era of change  

SciTech Connect (OSTI)

Students deserve the opportunity to explore the world of science surrounding them. Therefore it is important that scientific exploration and investigation be a part of each student`s educational career. The Department of Energy`s Adventures in Superconducting (AiS) takes students beyond mere scientific literacy to a rich embodiment of scientific exploration. AiS provides today`s science and math students with a greater opportunity to investigate science problems, propose solutions, explore different methods of solving the problem, organize their work into a technical paper, and present their results. Students learn at different rates in different ways. Science classes with students having varying learning styles and levels of achievement have always been a challenge for teachers. The AiS {open_quotes}hands-on, minds-on{close_quotes} project-based method of teaching science meets the challenge of this diversity heads on! AiS uses the development of student chosen projects as the means of achieving a lifelong enthusiasm for scientific proficiency. One goal of AiS is to emulate the research that takes place in the everyday environment of scientists. Students work in teams and often collaborate with students nationwide. With the help of mentors from the academic and scientific community, students pose a problem in science, investigate possible solutions, design a mathematical and computational model for the problem, exercise the model to achieve results, and evaluate the implications of the results. The students then have the opportunity to present the project to their peers, teachers, and scientists. Using this inquiry-based technique, students learn more than science skills, they learn to reason and think -- going well beyond the National Science Education Standard. The teacher becomes a resource person actively working together with the students in their quest for scientific knowledge.

Gentry, E. [Univ. of Alabama, Huntsville, AL (United States); Helland, B. [Krell Institute, Ames, IA (United States); Summers, B. [Oak Ridge National Lab., TN (United States)

1997-11-01T23:59:59.000Z

267

Experiment Explores Elusive Properties of Symmetry Energy  

E-Print Network [OSTI]

of nuclear sys- tems. The technique is made possible by the work of NSCL theorist Pawel Danielewicz, who

268

HOW GREEN IS JUDAISM? EXPLORING JEWISH ENVIRONMENTAL  

E-Print Network [OSTI]

HOW GREEN IS JUDAISM? EXPLORING JEWISH ENVIRONMENTAL ETHICS David Vogel Haas School of Business "green" and "non-green' elements. It is both inappropriate to over-emphasize the former, as have some and social values. The tea

Kammen, Daniel M.

269

Posters | Posters --721 Exploring lighting cultures  

E-Print Network [OSTI]

Posters | Posters -- 721 Exploring lighting cultures Beyond light and emotions Vincent LAGANIER 1 , Jasmine van der POL 2 1. Lighting Applications Services (LiAS), Philips Lighting, France vincent.laganier@philips.com 2

Boyer, Edmond

270

Cognitive Medium Access: Exploration, Exploitation and Competition  

E-Print Network [OSTI]

1 Cognitive Medium Access: Exploration, Exploitation and Competition Lifeng Lai, Hesham El Gamal, Hai Jiang and H. Vincent Poor Abstract-- This paper establishes the equivalence between cognitive cognitive user wishes to opportunistically exploit the availability of empty fre- quency bands

El-Gamal, Hesham

271

Wind Power Integration: Exploring Impacts and Alternatives  

E-Print Network [OSTI]

Wind Power Integration: Exploring Impacts and Alternatives Assist. Prof. C sustainable sources of energy. The idea of harnessing wind energy has been there have been no less than fifteen in-depth wind integration studies

Walter, M.Todd

272

Edinburgh Research Explorer The Managed Prosumer  

E-Print Network [OSTI]

Edinburgh Research Explorer The Managed Prosumer Citation for published version: Johnson, M, Mozaffar, H, Campagnolo, GM, Hyysalo, S, Pollock, N & Williams, R 2014, 'The Managed Prosumer: Evolving. M., Hyysalo, S., Pollock, N., & Williams, R. (2014). The Managed Prosumer: Evolving Knowledge

Millar, Andrew J.

273

Edinburgh Research Explorer Flights of Fancy  

E-Print Network [OSTI]

of this data were explored through processes of 3D printing and 2D pattern making and digital video Messenger (2012) installation at Tatton Park Biennial, 2012 The production of miniature 3D prints

Millar, Andrew J.

274

The Mission of the Mars Exploration Rovers  

ScienceCinema (OSTI)

The Mars Exploration Rover mission was expected to last 3 months, but has continued for more than 4 years. The major science results from both rovers will be summarized.

John Grant

2010-01-08T23:59:59.000Z

275

Design exploration through bidirectional modeling of constraints  

E-Print Network [OSTI]

Today digital models for design exploration are not used to their full potential. The research efforts in the past decades have placed geometric design representations firmly at the center of digital design environments. ...

Kilian, Axel, 1971-

2006-01-01T23:59:59.000Z

276

Applied Science/Techniques  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to someone by E-mailRadioimmunotherapy ofevolvedApplied Science/Techniques

277

Development of Metric for Measuring the Impact of RD&D Funding on GTO's Geothermal Exploration Goals (Presentation)  

SciTech Connect (OSTI)

The Department of Energy's Geothermal Technologies Office (GTO) provides RD&D funding for geothermal exploration technologies with the goal of lowering the risks and costs of geothermal development and exploration. In 2012, NREL was tasked with developing a metric to measure the impacts of this RD&D funding on the cost and time required for exploration activities. The development of this metric included collecting cost and time data for exploration techniques, creating a baseline suite of exploration techniques to which future exploration and cost and time improvements could be compared, and developing an online tool for graphically showing potential project impacts (all available at http://en.openei.org/wiki/Gateway:Geothermal). The conference paper describes the methodology used to define the baseline exploration suite of techniques (baseline), as well as the approach that was used to create the cost and time data set that populates the baseline. The resulting product, an online tool for measuring impact, and the aggregated cost and time data are available on the Open EI website for public access (http://en.openei.org).

Jenne, S.; Young, K. R.; Thorsteinsson, H.

2013-04-01T23:59:59.000Z

278

Validation of Innovation Exploration Technologies for Newberry...  

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

Newberry EGS Demonstration Newberry Volcano EGS Demonstration Novel use of 4D Monitoring Techniques to Improve Reservoir Longevity and Productivity in Enhanced Geothermal Systems...

279

Exploration trends of the Sirte Basin  

SciTech Connect (OSTI)

A wave of intense exploration activity in the Sirte Basin began after the discovery of oil in 1958, and an enormous quantity of hydrocarbon was found in less than ten years. The oil discovery rate has been gradually declining since its peak in the 1960`s, and it is now becoming increasingly difficult and more expensive to find a new reserve. This paper is an attempt to discuss briefly the past exploration cycle, to indicate the present position and to predict the future trend of our activities in the Sirte Basin. The past exploration activities in the Sirte Basin were concentrated along the particular geological trends where the possibilities of finding more reserves are now drastically reduced. Therefore, for the future healthy exploration activities, new ideas are needed to bring about some new favourable areas under further investigation. A new cycle of exploration success will emerge if our exploratory efforts are purposely directed towards the stratigraphic, stratrigraphic/structural traps and subtle type traps, along the migrational pathways and deep plays in the potential oil generative areas.

Aburawi, R.M. [Waha Oil Co., Tripoli (Libyan Arab Jamahiriya)

1995-08-01T23:59:59.000Z

280

MATHEMATICS AND COMPUTER SCIENCE: EXPLORING A SYMBIOTIC RELATIONSHIP  

E-Print Network [OSTI]

MATHEMATICS AND COMPUTER SCIENCE: EXPLORING A SYMBIOTIC RELATIONSHIP Authors: Ralph Bravaco Shai, Fractals, Chaos, Number Theory and Cryptography, Problem Solving, Other #12;Mathematics and Computer Science: Exploring a Symbiotic Relationship 1 MATHEMATICS AND COMPUTER SCIENCE: EXPLORING A SYMBIOTIC

Simonson, Shai

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Techniques For Microfabricating Coils For Microelectromechanical Systems Applications  

SciTech Connect (OSTI)

The advanced technology necessary for building future space exploration vehicles includes microfabricated coils for making possible self-inductances integrated with other passive and active electronic components. Integrated inductances make possible significant improvements in reliability over the traditional arrangement of using external discrete inductances, as well as allowing significant size (volume) reductions (also important in space vehicles). Two possible fabrication techniques (one using proprietary branded 'Foturan' glass, the other using silicon wafer substrates) for microscopic coils are proposed, using electroplating into channels. The techniques have been evaluated for fabricating the planar electrical coils needed for typical microelectromechanical systems applications. There remain problems associated with processing using 'Foturan' glass, but coil fabrication on silicon wafers was successful. Fabrication methods such as these are expected to play an important part in the development of systems and subsystems for forthcoming space exploration missions.

Woods, R. C. [Louisiana State University, 102A Department of Electrical and Computer Engineering, South Campus Drive, Baton Rouge, LA 70803-5901 (United States); Powell, A. L. [University of Sheffield, Sheffield S10 2TN (United Kingdom)

2008-01-21T23:59:59.000Z

282

Property:ExplorationBasis | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to: navigation, searchEstimatedTimeMedian JumpExplorationBasis Jump

283

Property:ExplorationNotes | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to: navigation, searchEstimatedTimeMedianExplorationNotes Jump to:

284

Property:ExplorationOutcome | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to: navigation, searchEstimatedTimeMedianExplorationNotes Jump

285

SciTech Connect: Explore by Subject  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted for USMaterialstheterahertzonExplore by Subject Explore by

286

Dental optical coherence domain reflectometry explorer  

DOE Patents [OSTI]

A hand-held, fiber optic based dental device with optical coherence domain reflectometry (OCDR) sensing capabilities provides a profile of optical scattering as a function of depth in the tissue at the point where the tip of the dental explorer touches the tissue. This system provides information on the internal structure of the dental tissue, which is then used to detect caries and periodontal disease. A series of profiles of optical scattering or tissue microstructure are generated by moving the explorer across the tooth or other tissue. The profiles are combined to form a cross-sectional, or optical coherence tomography (OCT), image.

Everett, Matthew J. (Livermore, CA); Colston, Jr., Billy W. (Livermore, CA); Sathyam, Ujwal S. (Livermore, CA); Da Silva, Luiz B. (Pleasanton, CA)

2001-01-01T23:59:59.000Z

287

Exploring the Deep... Exploring the Ocean Environment Unit 1The Ocean Basins  

E-Print Network [OSTI]

GEO/OC 103 Exploring the Deep... Lab 2 #12;Exploring the Ocean Environment Unit 1­The Ocean Basins Ocean origins 19 How did the oceans form? Scientists believe that the oceans developed early ). This early atmosphere reflected much of the solar radiation striking Earth, allowing the surface to cool

Wright, Dawn Jeannine

288

Exploring Hydrogen Generation from Biomass-Derived Sugar and...  

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

Exploring Hydrogen Generation from Biomass-Derived Sugar and Sugar Alcohols to Reduce Costs Exploring Hydrogen Generation from Biomass-Derived Sugar and Sugar Alcohols to Reduce...

289

Building America Expert Meeting: Exploring the Disconnect Between...  

Energy Savers [EERE]

Exploring the Disconnect Between Rated and Field Performance of Water Heating Systems Building America Expert Meeting: Exploring the Disconnect Between Rated and Field Performance...

290

DOE Leverages Fossil Energy Expertise to Develop And Explore...  

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

DOE Leverages Fossil Energy Expertise to Develop And Explore Geothermal Energy Resources DOE Leverages Fossil Energy Expertise to Develop And Explore Geothermal Energy Resources...

291

2014 call for the NERSC Initiative for Scientific Exploration...  

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

the NERSC Initiative for Scientific Exploration (NISE) program 2014 Call for NERSC Initiative for Scientific Exploration (NISE) Program Due December 8 November 18, 2013 by...

292

Idaho Geological Survey and University of Idaho Explore for Geothermal...  

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

Idaho Geological Survey and University of Idaho Explore for Geothermal Energy Idaho Geological Survey and University of Idaho Explore for Geothermal Energy January 11, 2013 -...

293

Energy Department Launches Web Tool to Explore Pathways to Clean...  

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

Energy Department Launches Web Tool to Explore Pathways to Clean Energy Economy Energy Department Launches Web Tool to Explore Pathways to Clean Energy Economy January 15, 2013 -...

294

Atomic Energy Commission Explores Peaceful Uses of Nuclear Explosions...  

National Nuclear Security Administration (NNSA)

Our Jobs Working at NNSA Blog Home About Us Our History NNSA Timeline Atomic Energy Commission Explores Peaceful Uses of ... Atomic Energy Commission Explores Peaceful...

295

Low Cost Exploration, Testing, And Development Of The Chena Geothermal...  

Open Energy Info (EERE)

Paper: Low Cost Exploration, Testing, And Development Of The Chena Geothermal Resource Abstract The Chena Hot Springs geothermal field was intensively explored, tested, and...

296

Petroleum Exploration Enhancement Program (Newfoundland and Labrador, Canada)  

Broader source: Energy.gov [DOE]

The Provincial Energy Plan, released in September 2007, introduced a policy action to encourage and promote exploration activity in Western Newfoundland known as the Petroleum Exploration...

297

Exploring the interaction between lithium ion and defective graphene...  

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

Exploring the interaction between lithium ion and defective graphene surface using dispersion corrected DFT studies. Exploring the interaction between lithium ion and defective...

298

Business Exploration Series SkillSoft's latest content innovation, the Business Exploration Series, was designed to be visually rich and  

E-Print Network [OSTI]

Business Exploration Series SkillSoft's latest content innovation, the Business Exploration Series to our Business Skills Courseware Library. The Business Exploration Series provides learners two different learning assets: Business Impact Series Challenge Series Analyze frequently encountered

Maryland, Baltimore County, University of

299

Indiana Energy Conference "Exploring Emerging Energy Issues"  

E-Print Network [OSTI]

Indiana Energy Conference "Exploring Emerging Energy Issues" Wednesday, October 3, 2012 University. Speakers/Panelists: Bernie Paul, Energy Consultant John Kinsman, Edison Electric Institute Are They Moving the U.S. Beyond Coal? Are regulations from the EPA moving too quickly and leading us away from coal

Ginzel, Matthew

300

EXPLORING PROTEIN FOLDING TRAJECTORIES USING GEOMETRIC SPANNERS  

E-Print Network [OSTI]

EXPLORING PROTEIN FOLDING TRAJECTORIES USING GEOMETRIC SPANNERS D. RUSSEL and L. GUIBAS Computer of secondary and tertiary structures as the protein folds. 1 Introduction There has been extensive work understanding of protein folding by studying their ensemble behaviors. Most currently used methods

Guibas, Leonidas J.

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Orion Flight Test Exploration Flight Test-1  

E-Print Network [OSTI]

Orion Flight Test Exploration Flight Test-1 PRESS KIT/December 2014 www.nasa.gov NP-2014-11-020-JSC National Aeronautics and Space Administration #12;#12;Orion Flight Test December 2014 Contents Section Page ........................................................................................... 28 i #12;Orion Flight Test ii December 2014 #12;Orion Flight Test December 2014 Flight Overview

Waliser, Duane E.

302

Edinburgh Research Explorer Agile Business Model Innovation  

E-Print Network [OSTI]

Edinburgh Research Explorer Agile Business Model Innovation Citation for published version: Bock, A & Gerard, G 2014, 'Agile Business Model Innovation' The European Business Review, vol May - June 2014. Link Publisher Rights Statement: © Bock, A., & Gerard, G. (2014). Agile Business Model Innovation. The European

Millar, Andrew J.

303

Exploration and project management Sylvain Lenfle  

E-Print Network [OSTI]

to manage innovation. We argue that, in line with the work on project classification, a distinction should1 Exploration and project management Sylvain Lenfle University of Cergy-Pontoise Management of Project Management, Vol. 6, n°5, p. 469-478, July. Abstract Project management in academic studies tends

Paris-Sud XI, Université de

304

Exploring Low Emission Lubricants for Diesel Engines  

SciTech Connect (OSTI)

A workshop to explore the technological issues involved with the removal of sulfur from lubricants and the development of low emission diesel engine oils was held in Scottsdale, Arizona, January 30 through February 1, 2000. It presented an overview of the current technology by means of panel discussions and technical presentations from industry, government, and academia.

Perez, J. M.

2000-07-06T23:59:59.000Z

305

Global Food Security Programme Exploring public views  

E-Print Network [OSTI]

Global Food Security Programme ­ Exploring public views #12;©TNS June 2012 -1- Executive Summary significant public policy issues of this century. This scoping study for the Global Food Security programme. The project involved a total of 44 people in a two stage workshop process in London, Edinburgh and Aberystwyth

306

EXPLORING EARTH'S MYSTERIES ...PROTECTING ITS FUTURE  

E-Print Network [OSTI]

2002 BNL Groundwater Status Report TABLE OF CONTENTS EXECUTIVE SUMMARY 1.0 INTRODUCTION AND OBJECTIVES ............................................................................................3-1 3.0.1 Model Assessment of BNL Groundwater Pump and Treat System Performance#12;EXPLORING EARTH'S MYSTERIES ...PROTECTING ITS FUTURE 2002 BNL GROUNDWATER STATUS REPORT July 29

307

Higher order harmonic detection for exploring nonlinear interactions  

SciTech Connect (OSTI)

Nonlinear dynamics underpin a vast array of physical phenomena ranging from interfacial motion to jamming transitions. In many cases, decoupling the contributions of competing or co-existing mechanisms to the system response can be achieved through investigation of higher order harmonics. Here, a method using band excitation scanning probe microscopy to investigate higher order harmonics of the electromechanical response, with nanometer scale spatial resolution is presented. The utility of the technique is demonstrated by probing the first three harmonics of strain for a well-known system, a model Pb(Zr1-xTix)O3 ferroelectric capacitor. It is shown that the second order harmonic response is correlated with the first harmonic response, whereas the third harmonic is not. Additionally, nanoscale measurements of the second harmonic response with field reveal significant deviations from Rayleigh-type models in the form of a much more complicated field dependence than is observed in the spatially averaged data. These results illustrate the versatility of combining proximal probe techniques with nth harmonic detection methods in exploring and decoupling nonlinear dynamics in a wide variety of nanoscale materials.

Vasudevan, Rama K [ORNL; Okatan, M. B. [University of New South Wales; Rajapaksa, Indrajit [Oak Ridge National Laboratory (ORNL); Kim, Yunseok [ORNL; Marincel, Dan [Materials Science and Engineering, Pennsylvania State University; Trolier-McKinstry, Susan [Pennsylvania State University; Jesse, Stephen [ORNL; Nagarajan, Valanoor [University of New South Wales; Kalinin, Sergei V [ORNL

2013-01-01T23:59:59.000Z

308

Wider benefits of Space Science & Exploration  

E-Print Network [OSTI]

academia who build subsystems) · Platforms and platform systems, solar panels etc. · Propulsion ­ electric systems #12;Benefits summary Better solar panels CFRP construction Techniques Electric propulsion New · Drivers: ­ Lowest cost systems ­ Robust supply chain ­ Reliability/Quality ­ Speed of build · Willing

Anand, Mahesh

309

National Aeronautics and Space Administration Advanced Exploration Systems  

E-Print Network [OSTI]

and transform skills. Infuse new technologies developed by STMD into exploration missions. Support robotic

Waliser, Duane E.

310

As of October 17, 2012 Solar System Exploration @50  

E-Print Network [OSTI]

:45 ­ 11:45 am Panel #1: Politics and Policy in the Conduct of Solar System Exploration Panel Chair: Marcia, and Solar System Exploration Panel Chair: Heidi Hammel (Association of Universities for Research And Mars: The Soviet Planetary Exploration Enterprise 9:30 ­ 11:30 am Panel 4: Exploring the Outer Solar

311

Towards Large-Scale Multimedia Exploration Christian Beecks  

E-Print Network [OSTI]

, and frequently support the exploration process by means of attractive interactive graphical user interfaces exploration systems fol- low the same general structure of an exploration process [5], which is illustrated in Figure 2. The exploration process is initialized by mapping a meaningful subset of d

Skopal, Tomas

312

National Aeronautics and Space Administration Advanced Exploration Systems  

E-Print Network [OSTI]

National Aeronautics and Space Administration Advanced Exploration Systems NASA Advisory Council · Exploration Committee December 10, 2013 Jason Crusan, Director, Advanced Exploration Systems Human Exploration and Operations Mission Directorate · NASA Headquarters #12;2 Topics · HEOMD Investment Prioritization Process

Waliser, Duane E.

313

RISK REDUCTION WITH A FUZZY EXPERT EXPLORATION TOOL  

SciTech Connect (OSTI)

Incomplete or sparse information on types of data such as geologic or formation characteristics introduces a high level of risk for oil exploration and development projects. ''Expert'' systems developed and used in several disciplines and industries have demonstrated beneficial results. A state-of-the-art exploration ''expert'' tool, relying on a computerized database and computer maps generated by neural networks, is being developed through the use of ''fuzzy'' logic, a relatively new mathematical treatment of imprecise or non-explicit parameters and values. Oil prospecting risk can be reduced with the use of a properly developed and validated ''Fuzzy Expert Exploration (FEE) Tool.'' This FEE Tool can be beneficial in many regions of the U.S. by enabling risk reduction in oil and gas prospecting as well as decreased prospecting and development costs. In the 1998-1999 oil industry environment, many smaller exploration companies lacked the resources of a pool of expert exploration personnel. Downsizing, low oil prices, and scarcity of exploration funds have also affected larger companies, and will, with time, affect the end users of oil industry products in the U.S. as reserves are depleted. The FEE Tool will benefit a diverse group in the U.S., leading to a more efficient use of scarce funds and lower product prices for consumers. This second annual report contains a summary of progress to date, problems encountered, plans for the next quarter, and an assessment of the prospects for future progress. During the second year of the project, data acquisition of the Brushy Canyon Formation was completed with the compiling and analyzing of well logs, geophysical data, and production information needed to characterize production potential in the Delaware Basin. A majority of this data now resides in several online databases on our servers and is in proper form to be accessed by external programs such as Web applications. A new concept was developed and tested in well log analysis using neural networks. Bulk volume oil (BVO) was successfully predicted using wireline logs as inputs. This concept provides a new tool for estimating the potential success of a well and determining the productive interval to be perforated. Regional attributes have been gridded to a 40-ac bin (gridblock) size, and our fuzzy ranking procedures were applied to determine which attributes are best able to predict production trends in the Delaware Basin. The production indicator was the average of the first 12 full producing months of oil production as the value to be predicted. A study to determine the ability of an artificial intelligence system to predict depth using seismic attributes in a Delaware field was completed and the results were published. Significant improvements over standard techniques were found, particularly when test wells were on the dataset boundary where extrapolation is required. Programming the expert system was undertaken, and a decision tree program was coded in Java Expert System Shell (JESS) that allows development and tabulation of rules and relationships between rules that can be used by our expert system. This important program allows lists of rules to be entered and easily tested and verified. The design of the expert system itself was clarified and an expanded system was created where several distinct factors such as geologic/geophysical data, trap assessment, and formation assessment can be operated on in parallel to increase efficiency of the overall system. Coding of the Java interface, which users can use to access data in the online databases and run the expert system, was completed. Development of the interface ties together the data and the expert system programs coded in JESS while allowing user customization and informative reports of results to be retrieved. Technology transfer continued to be an important aspect of this project. Research and progress to date was presented to a group of industry and academic professionals at the second annual consortium meeting held November 2, 2000 in Hobbs, NM. Key technical res

William W. Weiss

2001-05-17T23:59:59.000Z

314

Low Temperature Material Bonding Technique  

DOE Patents [OSTI]

A method of performing a lower temperature bonding technique to bond together two mating pieces of glass includes applying a sodium silicate aqueous solution between the two pieces.

Ramsey, J. Michael (Knoxville, TN); Foote, Robert S. (Oak Ridge, TN)

2000-10-10T23:59:59.000Z

315

Low temperature material bonding technique  

DOE Patents [OSTI]

A method of performing a lower temperature bonding technique to bond together two mating pieces of glass includes applying a sodium silicate aqueous solution between the two pieces.

Ramsey, J. Michael (Knoxville, TN); Foote, Robert S. (Oak Ridge, TN)

2002-02-12T23:59:59.000Z

316

2 Delivery of Learning Design: the Explor@ System's Case Delivery of Learning Design: the Explor@  

E-Print Network [OSTI]

: the Explor@ System's Case Primary author(s): Gilbert Paquette and Olga Marino, Other author(s): Ileana de la, for design- ing and developing learning systems as well as two software tools, MOT and ADISA, developed

Paris-Sud XI, Université de

317

Property:ExplorationHistory | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to: navigation, searchEstimatedTimeMedian

318

Rock types, pore types, and hydrocarbon exploration  

SciTech Connect (OSTI)

A proposed exploration-oriented method of classifying porosity in sedimentary rocks is based on microscopic examination cores or cuttings. Factors include geometry, size, abundance, and connectivity of the pores. The porosity classification is predictive of key petrophysical characteristics: porosity-permeability relationships, capillary pressures, and (less certainly) relative permeabilities. For instance, intercrystalline macroporosity typically is associated with high permeability for a given porosity, low capillarity, and favorable relative permeabilities. This is found to be true whether this porosity type occurs in a sucrosic dolomite or in a sandstone with pervasive quartz overgrowths. This predictive method was applied in three Rocky Mountain oil plays. Subtle pore throat traps could be recognized in the J sandstone (Cretaceous) in the Denver basin of Colorado by means of porosity permeability plotting. Variations in hydrocarbon productivity from a Teapot Formation (Cretaceous) field in the Powder River basin of Wyoming were related to porosity types and microfacies; the relationships were applied to exploration. Rock and porosity typing in the Red River Formation (Ordovician) reconciled apparent inconsistencies between drill-stem test, log, and mud-log data from a Williston basin wildcat. The well was reevaluated and completed successfully, resulting in a new field discovery. In each of these three examples, petrophysics was fundamental for proper evaluation of wildcat wells and exploration plays.

Coalson, E.B.; Hartmann, D.J.; Thomas, J.B.

1985-05-01T23:59:59.000Z

319

FORENSIC TECHNIQUES FOR CELL PHONES  

E-Print Network [OSTI]

June 2007 FORENSIC TECHNIQUES FOR CELL PHONES FORENSIC TECHNIQUES FOR CELL PHONES Shirley Radack cell phones are widely used for both personal and professional applications, the technology of cell forensics usually do not cover cell phones, especially those with advanced capabilities. The digital

320

The Momotombo Geothermal Field, Nicaragua: Exploration and development case history study  

SciTech Connect (OSTI)

This case history discusses the exploration methods used at the Momotombo Geothermal Field in western Nicaragua, and evaluates their contributions to the development of the geothermal field models. Subsequent reservoir engineering has not been synthesized or evaluated. A geothermal exploration program was started in Nicaragua in 1966 to discover and delineate potential geothermal reservoirs in western Nicaragua. Exploration began at the Momotombo field in 1970 using geological, geochemical, and geophysical methods. A regional study of thermal manifestations was undertaken and the area on the southern flank of Volcan Momotombo was chosen for more detailed investigation. Subsequent exploration by various consultants produced a number of geotechnical reports on the geology, geophysics, and geochemistry of the field as well as describing production well drilling. Geological investigations at Momotombo included photogeology, field mapping, binocular microscope examination of cuttings, and drillhole correlations. Among the geophysical techniques used to investigate the field sub-structure were: Schlumberger and electromagnetic soundings, dipole mapping and audio-magnetotelluric surveys, gravity and magnetic measurements, frequency domain soundings, self-potential surveys, and subsurface temperature determinations. The geochemical program analyzed the thermal fluids of the surface and in the wells. This report presents the description and results of exploration methods used during the investigative stages of the Momotombo Geothermal Field. A conceptual model of the geothermal field was drawn from the information available at each exploration phase. The exploration methods have been evaluated with respect to their contributions to the understanding of the field and their utilization in planning further development. Our principal finding is that data developed at each stage were not sufficiently integrated to guide further work at the field, causing inefficient use of resources.

None

1982-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Review : integration of EMI technique with global vibration technique  

E-Print Network [OSTI]

In the last decade, the development of Structural Health Monitoring (SHM) has been skyrocketing because of the serious consequences that come with structural failure. Traditional damage detection techniques, also known as ...

Ni, Suteng

2013-01-01T23:59:59.000Z

322

Utah coalbed gas exploration poised for growth  

SciTech Connect (OSTI)

Coalbed methane production in eastern Utah is growing despite a relaxed pace of exploratory drilling. Leasing has been active the past 2 years, but a delay in issuance of a federal environmental impact statement could retard drilling. Only 19 new wells began producing coalbed gas during 1995, but gas production increased from existing wells as dewatering progressed. The US Bureau of Land Management will allow limited exploration but no field development on federal lands until the EIS is completed, possibly as early as this month. The paper discusses production of coalbed methane in Utah.

Petzet, G.A.

1996-08-05T23:59:59.000Z

323

Dictionary of petroleum exploration, drilling, and production  

SciTech Connect (OSTI)

This book contains more than 20,000 definitions of oil exploration, drilling, and production terms, making this dictionary mandatory for both the experienced industry professional and the nontechnical person. Completing this comprehensive reference are more than 500 detailed illustrations. Appendices include a rotary rig diagram, a cable tool drilling rig, a beam pumping unit, giant oil fields of the world, giant oil, and gas fields of the United States and Canada, a geological time chart, geological map symbols, conversion factors, the Greek alphabet atomic weights and numbers, charts of the geological features of the United States and Canada, plus much, much more.

Hyne, N.J.

1991-01-01T23:59:59.000Z

324

Exploring the Nature of Matter | Jefferson Lab  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicy and Assistance100JeffersonMarkExploratory DevelopmentExploring

325

Explore Geothermal Careers | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office of Audit|Department of Energy56Executive SummitEnergyGeothermal Careers Explore

326

Geothermal/Exploration | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to: navigation, searchTo encourage the developmentRiverExploration

327

Experimental techniques and measurement accuracies  

SciTech Connect (OSTI)

A brief description of the experimental tools available for fusion neutronics experiments is given. Attention is paid to error estimates mainly for the measurement of tritium breeding ratio in simulated blankets using various techniques.

Bennett, E.F.; Yule, T.J.; DiIorio, G.; Nakamura, T.; Maekawa, H.

1985-02-01T23:59:59.000Z

328

The design, installation, and performance of a berm-supported exploration structure in the Beaufort Sea  

SciTech Connect (OSTI)

The design, installation, and performance of a berm-supported exploration structure in a dynamic ice environment is presented. Details are provided on design considerations which include horizontal ice loads, wave loads, seismic considerations, foundation characteristics and extreme temperatures. The development of specifications and installation techniques to account for these design concerns is presented. A case history is presented which includes a discussion of on-site modifications to the idealized placement technique, which were necessitated by extreme ice conditions. The success of this modified placement technique is confirmed through a review of the unit performance during the drilling season, and the response of the structure to dynamic ice and drilling-related activity is examined.

Hewitt, K.J.; Berzing, W.E.; Fitzpatrick, J.P.; Hogeboom, H.G.

1985-06-01T23:59:59.000Z

329

Design Space Exploration of Parameterized Systems using Design of Experiments  

E-Print Network [OSTI]

13 2.1 Design space exploration for system specific tuningShin Figure 5: Noxim NoC design space with over 60,00030: Percent of the design space that needs to be explored in

Sheldon, David

2011-01-01T23:59:59.000Z

330

A trade space model for robotic lunar exploration  

E-Print Network [OSTI]

The last decade has seen a resurgence of interest in the moon as a target for planetary exploration. In light of the growing interest in the robotic exploration of the moon, this thesis presents a quantitative methodology ...

Bailey, Zachary James

2010-01-01T23:59:59.000Z

331

June 26 Webinar to Explore Renewable Energy Project Leasing on...  

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

June 26 Webinar to Explore Renewable Energy Project Leasing on Tribal Lands June 26 Webinar to Explore Renewable Energy Project Leasing on Tribal Lands June 19, 2013 - 7:28pm...

332

Strategies for affordable human Moon and Mars exploration  

E-Print Network [OSTI]

The U.S. Vision for Space Exploration calls for NASA to undertake human exploration of the Moon and Mars. This endeavor must be performed in an affordable manner in order to be successful. This thesis outlines a series of ...

Wooster, Paul Douglas

2007-01-01T23:59:59.000Z

333

Exploration for heavy crude oil and natural bitumen  

SciTech Connect (OSTI)

This book discusses heavy oil and tar sand reserves which are enormous. Focus in on regional resources worldwide; characterization, maturation, and degradation; geological environments and migration; exploration methods; exploration histories; and recovery.

Meyer, R.F. (U.S. Geological Survey (US))

1987-01-01T23:59:59.000Z

334

Energy Department and South Dakota Tribal Leaders Explore Ways...  

Energy Savers [EERE]

and South Dakota Tribal Leaders Explore Ways to Lower Energy Costs Energy Department and South Dakota Tribal Leaders Explore Ways to Lower Energy Costs June 10, 2014 - 3:08pm...

335

An Integrated Traverse Planner and Analysis Tool for Planetary Exploration  

E-Print Network [OSTI]

Future planetary explorations will require surface traverses of unprecedented frequency, length, and duration. As a result, there is need for exploration support tools to maximize productivity, scientific return, and safety. ...

Johnson, Aaron William

336

Design of spacecraft for exploration of the Moon and Mars  

E-Print Network [OSTI]

In this thesis, I develop the conceptual design of the spacecraft required for human-Lunar and human-Mars exploration. The requirements for these vehicles are derived in the context of the NASA Concept Exploration & ...

Epps, Brenden P

2006-01-01T23:59:59.000Z

337

Thermo2Pro: Knowledge dissemination for deep geothermal exploration  

E-Print Network [OSTI]

1/12 Thermo2Pro: Knowledge dissemination for deep geothermal exploration Philippe Calcagno1 territoires, Voreppe, France # now at Kitware, Villeurbanne, France p.calcagno@brgm.fr Keywords: Deep geothermal exploration, information system, Web tool, sedimentary basin, dissemination. Abstract

Paris-Sud XI, Université de

338

Flow through shares for Natural Gas exploration (Quebec, Canada)  

Broader source: Energy.gov [DOE]

A flow-through share is a security issued by an exploration company that waives its exploration deduction in favor of the investor. The Québec Taxation Act enables a private individual to benefit...

339

Lightweight and Statistical Techniques for Petascale PetaScale Debugging  

SciTech Connect (OSTI)

This project investigated novel techniques for debugging scientific applications on petascale architectures. In particular, we developed lightweight tools that narrow the problem space when bugs are encountered. We also developed techniques that either limit the number of tasks and the code regions to which a developer must apply a traditional debugger or that apply statistical techniques to provide direct suggestions of the location and type of error. We extend previous work on the Stack Trace Analysis Tool (STAT), that has already demonstrated scalability to over one hundred thousand MPI tasks. We also extended statistical techniques developed to isolate programming errors in widely used sequential or threaded applications in the Cooperative Bug Isolation (CBI) project to large scale parallel applications. Overall, our research substantially improved productivity on petascale platforms through a tool set for debugging that complements existing commercial tools. Previously, Office Of Science application developers relied either on primitive manual debugging techniques based on printf or they use tools, such as TotalView, that do not scale beyond a few thousand processors. However, bugs often arise at scale and substantial effort and computation cycles are wasted in either reproducing the problem in a smaller run that can be analyzed with the traditional tools or in repeated runs at scale that use the primitive techniques. New techniques that work at scale and automate the process of identifying the root cause of errors were needed. These techniques significantly reduced the time spent debugging petascale applications, thus leading to a greater overall amount of time for application scientists to pursue the scientific objectives for which the systems are purchased. We developed a new paradigm for debugging at scale: techniques that reduced the debugging scenario to a scale suitable for traditional debuggers, e.g., by narrowing the search for the root-cause analysis to a small set of nodes or by identifying equivalence classes of nodes and sampling our debug targets from them. We implemented these techniques as lightweight tools that efficiently work on the full scale of the target machine. We explored four lightweight debugging refinements: generic classification parameters, such as stack traces, application-specific classification parameters, such as global variables, statistical data acquisition techniques and machine learning based approaches to perform root cause analysis. Work done under this project can be divided into two categories, new algorithms and techniques for scalable debugging, and foundation infrastructure work on our MRNet multicast-reduction framework for scalability, and Dyninst binary analysis and instrumentation toolkits.

Miller, Barton

2014-06-30T23:59:59.000Z

340

Exploring New Physics Frontiers Through Numerical Relativity  

E-Print Network [OSTI]

The demand to obtain answers to highly complex problems within strong-field gravity has been met with significant progress in the numerical solution of Einstein's equations - along with some spectacular results - in various setups. We review techniques for solving Einstein's equations in generic spacetimes, focusing on fully nonlinear evolutions but also on how to benchmark those results with perturbative approaches. The results address problems in high-energy physics, holography, mathematical physics, fundamental physics, astrophysics and cosmology.

Vitor Cardoso; Leonardo Gualtieri; Carlos Herdeiro; Ulrich Sperhake

2014-09-02T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

ASU School of Earth and Space Exploration September 10, 2014  

E-Print Network [OSTI]

ASU School of Earth and Space Exploration September 10, 2014 Imaging the Birthplaces of Stars and Planets with Terahertz Focal Plane Arrays Christopher Groppi Assistant Professor ASU School of Earth and Space Exploration #12;ASU School of Earth and Space Exploration September 10, 2014 SESE Terahertz Group

Rhoads, James

342

How to explore new business models for technological innovations  

E-Print Network [OSTI]

How to explore new business models for technological innovations Valérie Chanal Grenoble University also involved business model innovation. Exploration of new business models is however particularly to target. This article proposes a scenario-based method for exploring business models for technological

Paris-Sud XI, Université de

343

Frontier-Based Exploration Using Multiple Robots Brian Yamauchi  

E-Print Network [OSTI]

Frontier-Based Exploration Using Multiple Robots Brian Yamauchi Navy Center for Applied Research. ABSTRACT Frontier-based exploration directs mobile robots to regions on the boundary between unexplored spaceand spacethat is known to be open. Previously, we havedemonstrated that frontier-based exploration can

Baltes, Jacky

344

Virtual Reviewers for Collaborative Exploration of Movie Reviews  

E-Print Network [OSTI]

items well. Collaborative information exploration virtualizes this process by using rating data. We haveVirtual Reviewers for Collaborative Exploration of Movie Reviews Junichi Tatemura Institute tatemura@iis.u-tokyo.ac.jp ABSTRACT We propose a collaborative exploration system that helps users

345

A Business Process Explorer: Recovering Business Processes from Business Applications  

E-Print Network [OSTI]

1 A Business Process Explorer: Recovering Business Processes from Business Applications Jin Guo and software developers. We present a business process explorer tool which automatically recovers business of business applications, we developed a business process explorer tool which recovers as-implemented business

Zou, Ying

346

CLUSTERED MULTIDIMENSIONAL SCALING FOR EXPLORATION IN INFORMATION RETRIEVAL  

E-Print Network [OSTI]

and even hardly improve the exploration process of datasets assumed to be composed of multiple distinctCLUSTERED MULTIDIMENSIONAL SCALING FOR EXPLORATION IN INFORMATION RETRIEVAL Eniko Sz´ekely, ´Eric: clustering, nearest neighbour, multidimensional scaling, exploration. Abstract: The data that needs

Genève, Université de

347

HIGHER-ORDER MODELING AND AUTOMATED DESIGN-SPACE EXPLORATION  

E-Print Network [OSTI]

the second requires the exis- tence of an automated process for design space exploration. There are many waysHIGHER-ORDER MODELING AND AUTOMATED DESIGN-SPACE EXPLORATION J¨orn W. Janneck EECS Department exploration, exploratory simula- tion, performance evaluation, higher-order models ABSTRACT An important part

Esser, Robert

348

Optimal Grid Exploration by Asynchronous Oblivious Robots Stephane Devismes  

E-Print Network [OSTI]

process implies that the robots somehow have to remember which part of the graph has been explored of the other robots remain the only way to distinguish different stages of the exploration process. The mainOptimal Grid Exploration by Asynchronous Oblivious Robots St´ephane Devismes Anissa Lamani Franck

349

Asynchronous Exclusive Perpetual Grid Exploration without Sense of Direction  

E-Print Network [OSTI]

" to help robots in their exploration process. Observe that due to the mutual exclusion constraintsAsynchronous Exclusive Perpetual Grid Exploration without Sense of Direction Fran¸cois Bonnet1 the exclusive perpetual exploration of grid shaped networks using anonymous, oblivious and fully asynchronous

Paris-Sud XI, Université de

350

ccsd00001253 The exploration process of inhomogeneous continuum  

E-Print Network [OSTI]

ccsd­00001253 (version 1) : 8 Mar 2004 The exploration process of inhomogeneous continuum random) that arise as weak limits of birthday trees. We give a description of the exploration process, a function de words: Continuum random tree, exchangeable increments, exploration process, L#19;evy process, weak

351

Increasing pipelined IP core utilization in Process Networks using Exploration  

E-Print Network [OSTI]

Increasing pipelined IP core utilization in Process Networks using Exploration Claudiu Zissulescu pipelined. In this paper, we present an exploration methodology that uses feedback provided by the Laura tool to increase the uti- lization of IP cores embedded in our PN network. Using this exploration, we

Kienhuis, Bart

352

Using Provenance to Streamline Data Exploration through Visualization  

E-Print Network [OSTI]

of the visualization process can be used to streamline the data exploration process and reduce the time to insight process. #12;Using Provenance to Streamline Data Exploration through Visualization Steven P. Callahan be used to streamline the data exploration process and reduce the time to in- sight. This model enables

Utah, University of

353

Image Based Exploration for Indoor Environments using Local Features  

E-Print Network [OSTI]

. INTRODUCTION Mobile robot exploration is a vital cog in the automa- tion of the mapping process. In recentImage Based Exploration for Indoor Environments using Local Features (Extended Abstract) Aravindhan K Krishnan Madhava Krishna Supreeth Achar ABSTRACT This paper presents an approach to explore

Treuille, Adrien

354

Exploring Small-Scale Meat Processing Expansions in Iowa  

E-Print Network [OSTI]

Exploring Small-Scale Meat Processing Expansions in Iowa A Technical Report Submitted@iastate.edu #12;2Exploring Small-Scale Meat Processing Expansions in Iowa April 2011 Overview of Findings Iowa;3Exploring Small-Scale Meat Processing Expansions in Iowa April 2011 Introduction Iowa is a national leader

Debinski, Diane M.

355

Hierarchical Distributed Task Allocation for Multi-Robot Exploration  

E-Print Network [OSTI]

the exploration process via a market-based mechanism. That is, each robot decides for itself whether it is moreHierarchical Distributed Task Allocation for Multi-Robot Exploration John Hawley and Zack Butler Abstract In order to more effectively explore a large unknown area, multiple robots may be employed to work

Butler, Zack

356

Experimental Evaluation of Some Exploration Strategies for Mobile Robots  

E-Print Network [OSTI]

mobile robots. An efficient map building process is based on a good exploration strategy that determines to incrementally map it. More precisely, the process of exploring an unknown environment using a mobile robot the paper. II. A REVIEW OF EXPLORATION STRATEGIES Mapping is an incremental process. Since the ranges

Amigoni, Francesco

357

Using Visualization Process Graphs to Improve Visualization Exploration  

E-Print Network [OSTI]

Using Visualization Process Graphs to Improve Visualization Exploration T. J. Jankun-Kelly1 University, MS 39762, USA. Email: tjk@acm.org Abstract. Visualization exploration is an iterative process, redundant exploration was quickly identified and eliminated. 1 Introduction During the visualization process

Jankun-Kelly, T. J.

358

LAWST 7 Styles of Exploration (c) Cem Kaner All rights reserved 1 Styles of Exploration  

E-Print Network [OSTI]

they fail · Knowledge of the use of applications of this type · Deep knowledge of the software under test experience with software development projects and their typical problems · Requirements analysis or problem Testing: Exploring the Controversy of Unstructured Testing. STAR'98 WEST So, how do you do it

359

Exploring patterns in European singles charts  

E-Print Network [OSTI]

European singles charts are important part of the music industry responsible for creating popularity of songs. After modeling and exploring dynamics of global album sales in previous papers, we investigate patterns of hit singles popularity according to all data (1966-2015) from weekly charts (polls) in 12 Western European countries. The dynamics of building popularity in various national charts is more than the economy because it depends on spread of information. In our research we have shown how countries may be affected by their neighbourhood and influenced by technological era. We have also computed correlations with geographical and cultural distances between countries in analog, digital and Internet era. We have shown that time delay between the single premiere and the peak of popularity has become shorter under the influence of technology and the popularity of songs depends on geographical distances in analog (1966-1987) and Internet (2004-2015) era. On the other hand, cultural distances between nation...

Buda, Andrzej

2015-01-01T23:59:59.000Z

360

Hard x-ray imaging from explorer  

SciTech Connect (OSTI)

Coded aperture X-ray detectors were applied to obtain large increases in sensitivity as well as angular resolution. A hard X-ray coded aperture detector concept is described which enables very high sensitivity studies persistent hard X-ray sources and gamma ray bursts. Coded aperture imaging is employed so that approx. 2 min source locations can be derived within a 3 deg field of view. Gamma bursts were located initially to within approx. 2 deg and X-ray/hard X-ray spectra and timing, as well as precise locations, derived for possible burst afterglow emission. It is suggested that hard X-ray imaging should be conducted from an Explorer mission where long exposure times are possible.

Grindlay, J.E.; Murray, S.S.

1981-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Exploring the mechanisms of protein folding  

E-Print Network [OSTI]

Neither of the two prevalent theories, namely thermodynamic stability and kinetic stability, provides a comprehensive understanding of protein folding. The thermodynamic theory is misleading because it assumes that free energy is the exclusive dominant mechanism of protein folding, and attributes the structural transition from one characteristic state to another to energy barriers. Conversely, the concept of kinetic stability overemphasizes dominant mechanisms that are related to kinetic factors. This article explores the stability condition of protein structures from the viewpoint of meso-science, paying attention to the compromise in the competition between minimum free energy and other dominant mechanisms. Based on our study of complex systems, we propose that protein folding is a meso-scale, dissipative, nonlinear and non-equilibrium process that is dominated by the compromise between free energy and other dominant mechanisms such as environmental factors. Consequently, a protein shows dynamic structures,...

Xu, Ji; Ren, Ying; Li, Jinghai

2013-01-01T23:59:59.000Z

362

Review of uranium bioassay techniques  

SciTech Connect (OSTI)

A variety of analytical techniques is available for evaluating uranium in excreta and tissues at levels appropriate for occupational exposure control and evaluation. A few (fluorometry, kinetic phosphorescence analysis, {alpha}-particle spectrometry, neutron irradiation techniques, and inductively-coupled plasma mass spectrometry) have also been demonstrated as capable of determining uranium in these materials at levels comparable to those which occur naturally. Sample preparation requirements and isotopic sensitivities vary widely among these techniques and should be considered carefully when choosing a method. This report discusses analytical techniques used for evaluating uranium in biological matrices (primarily urine) and limits of detection reported in the literature. No cost comparison is attempted, although references are cited which address cost. Techniques discussed include: {alpha}-particle spectrometry; liquid scintillation spectrometry, fluorometry, phosphorometry, neutron activation analysis, fission-track counting, UV-visible absorption spectrophotometry, resonance ionization mass spectrometry, and inductively-coupled plasma mass spectrometry. A summary table of reported limits of detection and of the more important experimental conditions associated with these reported limits is also provided.

Bogard, J.S.

1996-04-01T23:59:59.000Z

363

VolumeExplorer: Roaming Large Volumes to Couple Visualization and Data Processing for Oil and Gas Exploration  

E-Print Network [OSTI]

VolumeExplorer: Roaming Large Volumes to Couple Visualization and Data Processing for Oil and Gas dedicated to oil and gas exploration. Our system combines probe- based volume rendering with data processing Seismic interpretation is an important task in the oil and gas exploration-production (EP) workflow [9, 26

Paris-Sud XI, Université de

364

Erasure Techniques in MRD codes  

E-Print Network [OSTI]

This book is organized into six chapters. The first chapter introduces the basic algebraic structures essential to make this book a self contained one. Algebraic linear codes and their basic properties are discussed in chapter two. In chapter three the authors study the basic properties of erasure decoding in maximum rank distance codes. Some decoding techniques about MRD codes are described and discussed in chapter four of this book. Rank distance codes with complementary duals and MRD codes with complementary duals are introduced and their applications are discussed. Chapter five introduces the notion of integer rank distance codes. The final chapter introduces some concatenation techniques.

W. B. Vasantha Kandasamy; Florentin Smarandache; R. Sujatha; R. S. Raja Durai

2012-05-03T23:59:59.000Z

365

Initial Report on the Development of a Monte Carlo-Markov Chain Joint Inversion Approach for Geothermal Exploration  

SciTech Connect (OSTI)

Geothermal exploration and subsequent characterization of potential resources typically employ a variety of geophysical, geologic and geochemical techniques. However, since the data collected by each technique provide information directly on only one or a very limited set of the many physical parameters that characterize a geothermal system, no single method can be used to describe the system in its entirety. Presently, the usual approach to analyzing disparate data streams for geothermal applications is to invert (or forward model) each data set separately and then combine or compare the resulting models, for the most part in a more or less ad hoc manner. However, while each inversion may yield a model that fits the individual data set, the models are usually inconsistent with each other to some degree. This reflects uncertainties arising from the inevitable fact that geophysical and other exploration data in general are to some extent noisy, incomplete, and of limited sensitivity and resolution, and so yield non-unique results. The purpose of the project described here is to integrate the different model constraints provided by disparate geophysical, geological and geochemical data in a rigorous and consistent manner by formal joint inversion. The objective is to improve the fidelity of exploration results and reservoir characterization, thus addressing the goal of the DOE Geothermal Program to improve success in exploration for economically viable resources by better defining drilling targets, reducing risk, and improving exploration/drilling success rates.

Foxall, W; Ramirez, A; Carlson, S; Dyer, K; Sun, Y

2007-04-25T23:59:59.000Z

366

Exploration for stratigraphic traps in a mature hydrodynamic setting, Williston Basin, North Dakota  

SciTech Connect (OSTI)

Hydrodynamic effects on oil accumulations generally can be recognized at an early stage of exploration, but become of critical importance with increased drilling and discoveries. At the mature stage, hydrodynamic concepts readily can be applied in exploration and development to reduce risk and to increase success ratios. The south flank of the Williston basin is an example of a mature area with significant hydrodynamic effects on accumulation. Early exploration was aimed at stratigraphic traps in the Mission Canyon Formation but the development of major fields showed that all are strongly influenced by hydrodynamic flow and some may be largely independent of porosity pinchouts. Examples of hydrodynamic effects are illustrated by the Billings Nose fields, and the Elkhorn Ranch and Knutson fields. These accumulations have hydrodynamic gradients on the order of 20 ft/mi (4 m/km) or more; tilted oil-water contacts with gradient of 30 to 50 ft/mi (6 to 10 m/km); displacement of oil downdip to the northeast; and variable formation water salinities that range from nearly fresh to highly saline. Some producing zones have been described as purely hydrodynamic traps, lacking both structural and stratigraphic closure. Future success will depend on applying hydrodynamic concepts in exploration and development, and prediction methods are illustrated by possible extensions to existing one-well fields. Simple graphic techniques can estimate the limits of production before drilling, but a knowledge of local structure is most important to the interpretation.

Berg, R.R. (Texas A and M Univ., College Station (USA))

1990-05-01T23:59:59.000Z

367

Nano-CMOS Mixed-Signal Circuit Metamodeling Techniques: A Comparative Study  

E-Print Network [OSTI]

Nano-CMOS Mixed-Signal Circuit Metamodeling Techniques: A Comparative Study Oleg Garitselov1 , Saraju P. Mohanty2 , Elias Kougianos3 , and Priyadarsan Patra4 NanoSystem Design Laboratory (NSDL, http Abstract--Fast design space exploration of complex nano- CMOS mixed-signal circuits is an important problem

Mohanty, Saraju P.

368

Chapter 55: Video-as-Data and Digital Video Manipulation Techniques for Transforming  

E-Print Network [OSTI]

Chapter 55: Video-as-Data and Digital Video Manipulation Techniques for Transforming Learning and current progress of the Digital Interactive Video Exploration and Reflection (DIVER) Project at Stanford University. The DIVER Project aspires to accelerate cul- tural appropriation of video as a fluid expressive

Paris-Sud XI, Université de

369

Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant ofRichardton AbbeyA JumpSeagoville,SecretEmissionsSeismic

370

Data Mining: Concepts and Techniques  

E-Print Network [OSTI]

1 Data Mining: Concepts and Techniques (3rd ed.) -- Chapter 3 -- Jiawei Han, Micheline Kamber. All rights reserved. #12;2013/08/12 2 #12;33 Chapter 3: Data Preprocessing n Data Preprocessing: An Overview n Data Quality n Major Tasks in Data Preprocessing n Data Cleaning n Data Integration n Data

Geldenhuys, Jaco

371

Dissertation Imaging as Characterization Techniques  

E-Print Network [OSTI]

Telluride Photovoltaics The goal of increasing the efficiency of solar cell devices is a universal oneDissertation Imaging as Characterization Techniques for Thin-Film Cadmium Telluride Photovoltaics. Increased photovoltaic (PV) performance means an increase in competition with other energy tech- nologies

Sites, James R.

372

Diagnosis of Acid Placement from Downhole Temperature Measurements  

E-Print Network [OSTI]

-dependent function for estimating injection temperature D depth D(t) time function in the wormhole model Dtotal total depth of the wellbore section d observed data vector e residual vector ek specific kinetic energy ep specific potential energy e...R specific internal energy of rock es specific internal energy of acid solution E energy viii Ereaction energy released by reaction in the control volume f objective function f(t) time-dependent function in Ramey’s equation G sensitivity matrix...

Tan, Xuehao

2012-10-19T23:59:59.000Z

373

Geothermal pump down-hole energy regeneration system  

DOE Patents [OSTI]

Geothermal deep well energy extraction apparatus is provided of the general kind in which solute-bearing hot water is pumped to the earth's surface from a subterranean location by utilizing thermal energy extracted from the hot water for operating a turbine motor for driving an electrical power generator at the earth 3 s surface, the solute bearing water being returned into the earth by a reinjection well. Efficiency of operation of the total system is increased by an arrangement of coaxial conduits for greatly reducing the flow of heat from the rising brine into the rising exhaust of the down-well turbine motor.

Matthews, Hugh B. (Boylston, MA)

1982-01-01T23:59:59.000Z

374

Downhole steam generator with improved preheating, combustion and protection features  

DOE Patents [OSTI]

An apparatus for generation of steam in a borehole for penetration into an earth formation wherein feedback preheater means are provided for the fuel and water before entering the combustor assembly. First, combustion gases are conducted from the combustion chamber to locations in proximity to the water and fuel supplies. Secondly, both hot combustion gases and steam are conducted from the borehole back to the water and fuel supply. The water used for conversion to steam is passed in a countercurrent manner through a plurality of annular water flow channels surrounding the combustion chamber. In this manner, the water is preheated, and the combustion chamber is cooled simultaneously, thereby minimizing thermal stresses and deterioration of the walls of the combustion chamber. The water is injected through slotted inlets along the combustion chamber wall to provide an unstable boundary layer and stripping of the water from the wall for efficient steam generation. Pressure responsive doors are provided at the steam outlet of the combustor assembly. The outlet doors and fluid flow functions may be controlled by a diagnostic/control module. The module is positioned in the water flow channel to maintain a relatively constant, controlled temperature.

Fox, Ronald L. (Albuquerque, NM)

1983-01-01T23:59:59.000Z

375

High-Temperature Downhole Tools | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:GreerHi Gtel Jump to: navigation,Solar Power PlantWellsNationalTools 2

376

Geothermal: Sponsored by OSTI -- Downhole heat exchanger system...  

Office of Scientific and Technical Information (OSTI)

Museum, Brannon Cottage, and the Community Center, Calistoga, CA. Feasibility study Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On Home...

377

Self-Consuming Downhole Packer | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage » SearchEnergyDepartment of Energy Moniz: WhatM-1at theFigure 1.

378

Multipurpose Acoustic Sensor for Downhole Fluid Monitoring | Department of  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |EnergyonSupport0.pdf5 OPAM SEMIANNUAL REPORTMAMayCrossColoradoMotion toMultimediaEnergy

379

Category:Downhole Fluid Sampling | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacilityCascade SierraStatus Statuspage? For detailed

380

Downhole burner systems and methods for heating subsurface formations  

DOE Patents [OSTI]

A gas burner assembly for heating a subsurface formation includes an oxidant conduit, a fuel conduit, and a plurality of oxidizers coupled to the oxidant conduit. At least one of the oxidizers includes a mix chamber for mixing fuel from the fuel conduit with oxidant from the oxidant conduit, an igniter, and a shield. The shield includes a plurality of openings in communication with the oxidant conduit. At least one flame stabilizer is coupled to the shield.

Farmayan, Walter Farman (Houston, TX); Giles, Steven Paul (Damon, TX); Brignac, Jr., Joseph Phillip (Katy, TX); Munshi, Abdul Wahid (Houston, TX); Abbasi, Faraz (Sugarland, TX); Clomburg, Lloyd Anthony (Houston, TX); Anderson, Karl Gregory (Missouri City, TX); Tsai, Kuochen (Katy, TX); Siddoway, Mark Alan (Katy, TX)

2011-05-31T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

New River Geothermal Exploration (Ram Power Inc.)  

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

The New River Geothermal Exploration (DOE Award No. EE0002843) is located approximately 25km south of the Salton Sea, near town of Brawley in Imperial County and approximately 150km east of San Diego, California. A total of 182 MT Logger sites were completed covering the two separate Mesquite and New River grids. The data was collected over a frequency range of 320Hz to 0.001Hz with variable site spacing. A number of different inversion algorithms in 1D, 2D and 3D were used to produce resistivity-depth profiles and maps of subsurface resistivity variations over the survey area. For 2D inversions, a total of eighteen lines were constructed in east-west and north-south orientations crossing the entire survey area. For MT 3D inversion, the New River property was divided in two sub-grids, Mesquite and New River areas. The report comprises of two parts. For the first part, inversions and geophysical interpretation results are presented with some recommendations of the potential targets for future follow up on the property. The second part of the report describes logistics of the survey, survey parameters, methodology and the survey results (data) in digital documents. The report reviews a Spartan MT survey carried out by Quantec Geoscience Limited over the New River Project in California, USA on behalf of Ram Power Inc. Data was acquired over a period of 29 days from 2010/06/26 to 2010/07/24.

Miller, Clay

382

Perception vs. reality in deepwater exploration  

SciTech Connect (OSTI)

The common perception in exploration is that deepwater sands are predominantly a product of turbidity currents, and that submarine-fan models with channel/levee and lobe elements are the norm. The reality, however, is that in many cases, deepwater sands are deposits of sandy debris flows and bottom currents, not turbidity currents. Submarine-fan models with channels and lobes are designed for turbidite-dominated deepwater systems, and therefore, fan models are obsolete for debris-flow deposits. The subject is described here in a discussion that covers: Deepwater processes. How sediments move downslope from the shelf, definitions, and misunderstood effects of high-density turbidity and bottom currents; Submarine fan models, and sequence stratigraphic implications. Limitations of widely used models, and seismic geometries and log motifs. Better calibrations are needed. In the conclusion, the author states a critical need for developing additional models for debris flows, and that research should also focus on developing reliable methods for using seismic geometry and wireline-log motifs to recognize depositional facies. A comprehensive bibliography of published literature on the subject is liberally referenced. In this paper, the term deep water refers to bathyal water depths, i.e., area seaward of the shelf edge, that existed at the time of deposition of reservoir sands; it does not necessarily refer to present-day water depths in offshore examples.

Shanmugam, G. [Mobil Exploration and Producing Technical Center, Dallas, TX (United States)

1996-09-01T23:59:59.000Z

383

Alum Innovative Exploration Project (Ram Power Inc.)  

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

Data generated from the Alum Innovative Exploration Project, one of several promising geothermal properties located in the middle to upper Miocene (~11-5 Ma, or million years BP) Silver Peak-Lone Mountain metamorphic core complex (SPCC) of the Walker Lane structural belt in Esmeralda County, west-central Nevada. The geothermal system at Alum is wholly concealed; its upper reaches discovered in the late 1970s during a regional thermal-gradient drilling campaign. The prospect boasts several shallow thermal-gradient (TG) boreholes with TG >75oC/km (and as high as 440oC/km) over 200-m intervals in the depth range 0-600 m. Possibly boiling water encountered at 239 m depth in one of these boreholes returned chemical- geothermometry values in the range 150-230oC. GeothermEx (2008) has estimated the electrical- generation capacity of the current Alum leasehold at 33 megawatts for 20 years; and the corresponding value for the broader thermal anomaly extending beyond the property at 73 megawatts for the same duration.

Miller, Clay

384

From Question Answering to Visual Exploration  

SciTech Connect (OSTI)

Research in Question Answering has focused on the quality of information retrieval or extraction using the metrics of precision and recall to judge success; these metrics drive toward finding the specific best answer(s) and are best supportive of a lookup type of search. These do not address the opportunity that users? natural language questions present for exploratory interactions. In this paper, we present an integrated Question Answering environment that combines a visual analytics tool for unstructured text and a state-of-the-art query expansion tool designed to compliment the cognitive processes associated with an information analysts work flow. Analysts are seldom looking for factoid answers to simple questions; their information needs are much more complex in that they may be interested in patterns of answers over time, conflicting information, and even related non-answer data may be critical to learning about a problem or reaching prudent conclusions. In our visual analytics tool, questions result in a comprehensive answer space that allows users to explore the variety within the answers and spot related information in the rest of the data. The exploratory nature of the dialog between the user and this system requires tailored evaluation methods that better address the evolving user goals and counter cognitive biases inherent to exploratory search tasks.

McColgin, Dave W.; Gregory, Michelle L.; Hetzler, Elizabeth G.; Turner, Alan E.

2006-08-11T23:59:59.000Z

385

New River Geothermal Exploration (Ram Power Inc.)  

SciTech Connect (OSTI)

The New River Geothermal Exploration (DOE Award No. EE0002843) is located approximately 25km south of the Salton Sea, near town of Brawley in Imperial County and approximately 150km east of San Diego, California. A total of 182 MT Logger sites were completed covering the two separate Mesquite and New River grids. The data was collected over a frequency range of 320Hz to 0.001Hz with variable site spacing. A number of different inversion algorithms in 1D, 2D and 3D were used to produce resistivity-depth profiles and maps of subsurface resistivity variations over the survey area. For 2D inversions, a total of eighteen lines were constructed in east-west and north-south orientations crossing the entire survey area. For MT 3D inversion, the New River property was divided in two sub-grids, Mesquite and New River areas. The report comprises of two parts. For the first part, inversions and geophysical interpretation results are presented with some recommendations of the potential targets for future follow up on the property. The second part of the report describes logistics of the survey, survey parameters, methodology and the survey results (data) in digital documents. The report reviews a Spartan MT survey carried out by Quantec Geoscience Limited over the New River Project in California, USA on behalf of Ram Power Inc. Data was acquired over a period of 29 days from 2010/06/26 to 2010/07/24.

Miller, Clay

2013-11-15T23:59:59.000Z

386

Architectural Techniques For Managing Non-volatile Caches  

SciTech Connect (OSTI)

As chip power dissipation becomes a critical challenge in scaling processor performance, computer architects are forced to fundamentally rethink the design of modern processors and hence, the chip-design industry is now at a major inflection point in its hardware roadmap. The high leakage power and low density of SRAM poses serious obstacles in its use for designing large on-chip caches and for this reason, researchers are exploring non-volatile memory (NVM) devices, such as spin torque transfer RAM, phase change RAM and resistive RAM. However, since NVMs are not strictly superior to SRAM, effective architectural techniques are required for making them a universal memory solution. This book discusses techniques for designing processor caches using NVM devices. It presents algorithms and architectures for improving their energy efficiency, performance and lifetime. It also provides both qualitative and quantitative evaluation to help the reader gain insights and motivate them to explore further. This book will be highly useful for beginners as well as veterans in computer architecture, chip designers, product managers and technical marketing professionals.

Mittal, Sparsh [ORNL] ORNL

2013-01-01T23:59:59.000Z

387

Characterization of radioactive contamination inside pipes with the Pipe Explorer{trademark} system. Final report  

SciTech Connect (OSTI)

The Department of Energy (DOE) is currently in the process of decommissioning and dismantling many of its nuclear materials processing facilities that have been in use for several decades. Site managers throughout the DOE complex must employ the safest and most cost effective means to characterize, remediate and recycle or dispose of hundreds of miles of potentially contaminated piping and duct work. The DOE discovered that standard characterization methods were inadequate for its pipes, drains, and ducts because many of the systems are buried or encased. In response to the DOE`s need for a more specialized characterization technique, Science and Engineering Associates, Inc. (SEA) developed the Pipe Explorer{trademark} system through a DOE Office of Science and Technology (OST) contract administered through the Federal Energy Technology Center (FETC). The purpose of this report is to serve as a comprehensive overview of all phases of the Pipe Explorer{trademark} development project. The report is divided into 6 sections. Section 2 of the report provides an overview of the Pipe Explorer{trademark} system, including the operating principles of using an inverting membrane to tow sensors into pipes. The basic components of the characterization system are also described. Descriptions of the various deployment systems are given in Section 3 along with descriptions of the capabilities of the deployment systems. During the course of the development project 7 types of survey instruments were demonstrated with the Pipe Explorer{trademark} and are a part of the basic toolbox of instruments available for use with the system. These survey tools are described in Section 4 along with their typical performance specifications. The 4 demonstrations of the system are described chronologically in Section 5. The report concludes with a summary of the history, status, and future of the Pipe Explorer{trademark} system in Section 6.

Cremer, C.D.; Kendrick, D.T.; Lowry, W.; Cramer, E.

1997-09-30T23:59:59.000Z

388

Solar discrepancies : Mars exploration and the curious problem of inter-planetary time  

E-Print Network [OSTI]

Monterey, California. Solar Discrepancies: Mars explorationCALIFORNIA, SAN DIEGO Solar discrepancies: Mars explorationOF THE DISSERTATION Solar discrepancies: Mars exploration

Mirmalek, Zara Lenora

2008-01-01T23:59:59.000Z

389

Lithium In Tufas Of The Great Basin- Exploration Implications...  

Open Energy Info (EERE)

Tufas Of The Great Basin- Exploration Implications For Geothermal Energy And Lithium Resources Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper:...

390

Quaternary Borate Deposits As A Geothermal Exploration Tool In...  

Open Energy Info (EERE)

Borate Deposits As A Geothermal Exploration Tool In The Great Basin Abstract A close spatial relationship exists between Quaternary borate deposits and moderate to high...

391

Application of a New Structural Model and Exploration Technologies...  

Open Energy Info (EERE)

Technologies to Define a Blind Geothermal System: A Viable Alternative to Grid-Drilling for Geothermal Exploration: McCoy, Churchill County, NV Geothermal Project Jump to:...

392

United States Department Of The Navy Geothermal Exploration Leading...  

Open Energy Info (EERE)

Navy Geothermal Exploration Leading To Shallow And Intermediate-Deep Drilling At Hawthorne Ammunition Depot, Hawthorne, Nv Jump to: navigation, search OpenEI Reference LibraryAdd...

393

Historical Exploration And Drilling Data From Geothermal Prospects...  

Open Energy Info (EERE)

Historical Exploration And Drilling Data From Geothermal Prospects And Power Generation Projects In The Western United States Jump to: navigation, search OpenEI Reference...

394

Fall Lectures Feature Life of Einstein; Exploring Our World With...  

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

Fall Lectures Feature Life of Einstein; Exploring Our World With Particle Accelerators NEWPORT NEWS, Va., Sept. 22, 2010 - Jefferson Lab's first 2010 Fall Science Series lecture,...

395

Jefferson Lab Fall Lecture: Exploring Our World With Particle...  

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

Fall Lecture: Exploring Our World With Particle Accelerators NEWPORT NEWS, Va., Nov. 9, 2010 - Jefferson Lab's 2010 Fall Science Lecture Series concludes on Tuesday, Nov. 23, with...

396

Blind Geothermal System Exploration in Active Volcanic Environments...  

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

lack of surface thermal manifestation * Assessing unconventional targets requires re-tooling the standard geothermal exploration kit and adding in new tools Gravity Aeromagnetics...

397

Integrated Geophysical Exploration of a Known Geothermal Resource...  

Open Energy Info (EERE)

Neal Hot Springs Jump to: navigation, search OpenEI Reference LibraryAdd to library Book Section: Integrated Geophysical Exploration of a Known Geothermal Resource: Neal Hot...

398

A Regional Strategy For Geothermal Exploration With Emphasis...  

Open Energy Info (EERE)

Strategy For Geothermal Exploration With Emphasis On Gravity And Magnetotellurics Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Regional...

399

architecture exploring tumor: Topics by E-print Network  

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

2007-01-01 23 Generative exploration of architectural envelope responding to solar passive qualities Physics Websites Summary: evolutionary design, integrated to early stage...

400

Assessment of New Approaches in Geothermal Exploration Decision...  

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

Assessment of New Approaches in Geothermal Exploration Decision Making Preprint Sertac Akar and Katherine R. Young National Renewable Energy Laboratory Presented at the Fourtieth...

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

U-262: Microsoft Internet Explorer Flaw Lets Remote Users Execute...  

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

reported in Microsoft Internet Explorer. reference LINKS: Bugtraq ID: 55562 Security Database KB2757760 Microsoft Security Advisory (2757760) SecurityTracker Alert ID: 1027538...

402

Exploration Best Practices and the OpenEI Knowledge Exchange...  

Energy Savers [EERE]

Exchange Webinar Exploration Best Practices and the OpenEI Knowledge Exchange Webinar slide presentation by Katherine Young, Timothy Reber and Kermit Witherbee on April 11, 2012....

403

Geothermal Exploration In Pilgrim, Alaska- First Results From...  

Open Energy Info (EERE)

Pilgrim, Alaska- First Results From Remote Sensing Studies Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Poster: Geothermal Exploration In Pilgrim, Alaska- First...

404

NMSLO Application for Permit to Conduct Geophysical Exploration...  

Open Energy Info (EERE)

Reference LibraryAdd to library Legal Document- OtherOther: NMSLO Application for Permit to Conduct Geophysical Exploration on Unleased State LandsLegal Published NA Year...

405

Reconnaissance geothermal exploration at Raft River, Idaho from...  

Open Energy Info (EERE)

exploration at Raft River, Idaho from thermal infrared scanning Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Reconnaissance geothermal...

406

A Structural Model Guide For Geothermal Exploration In Ancestral...  

Open Energy Info (EERE)

navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Structural Model Guide For Geothermal Exploration In Ancestral Mount Bao, Leyte, Philippines Abstract...

407

Energy Department Explores Deep Direct Use | Department of Energy  

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

Department Explores Deep Direct Use Cascaded uses of geothermal energy include district heating and industrial uses as well as agricultural applications like greenhouses and...

408

Low Cost Exploration, Testing, and Development of the Chena Geothermal...  

Open Energy Info (EERE)

Article: Low Cost Exploration, Testing, and Development of the Chena Geothermal Resource Abstract The Chena Hot Springs geothermal field was intensivelyexplored, tested, and...

409

Hg Anomalies In Soils- A Geochemical Exploration Method For Geothermal...  

Open Energy Info (EERE)

Areas. Geothermics. () . Related Geothermal Exploration Activities Activities (5) Mercury Vapor At Breitenbush Hot Springs Area (Varekamp & Buseck, 1983) Mercury Vapor At...

410

Blind Geothermal System Exploration in Active Volcanic Environments...  

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

Blind Geothermal System Exploration in Active Volcanic Environments; Multi-phase Geophysical and Geochemical Surveys in Overt & Subtle Volcanic Systems, Hawaii & Maui Blind...

411

NREL: News - NREL Assembles Industry Group to Explore Solar Lending...  

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

914 NREL Assembles Industry Group to Explore Solar Lending Potential May 7, 2014 Increasingly, banks, credit unions, and other lenders are beginning to offer loan products to...

412

Practical kerogen typing for petroleum exploration  

SciTech Connect (OSTI)

The explorationist requires basic quantitative information on the size, gas-oil ratio (GOR), and timing of petroleum charges. Yet only a part of this crucial information is obtainable from the data currently used to define kerogen types. The authors describe here a practical approach and solution to this problem by defining kerogen type according to three fundamental criteria. One of these is total hydrocarbon-generating potential, as determined by Rock-Eval pyrolysis (S2). The other equally important criteria are source quality (GOR, wax content, etc), as determined by pyrolysis-gas chromatography (PY-GC), and thermal lability (response to thermal stress), as determined by PY-GC and microscale simulation pyrolysis techniques. With regard to source quality determination, paraffinic oil-generating potential (both high wax and low wax), paraffinic-naphthenic-aromatic oil-generating potential (both high wax and low wax), and gas condensate-generating potentials are readily discernible and quantifiable. Concerning thermal lability, the influence of extreme maturation levels on source rock and petroleum composition has been assessed. In the case of some kerogens, bulk compositional features can be preserved to high levels of thermal stress. This means that original oil-generating potential can sometimes be discerned from the analysis of overmature kerogens.

Horsfield, B.; Larter, S.R.

1989-03-01T23:59:59.000Z

413

Center for BrainHealtH Scientific exploration at  

E-Print Network [OSTI]

Center for BrainHealtH #12;#12;Scientific exploration at BrainHealth is leading edge, innovative and transformative. leading tHe way in tHiS century'S greateSt ScientiFic cauSe The Center for Brain significant cause of the century: To understand, protect and heal the brain. Scientific exploration at Brain

O'Toole, Alice J.

414

Roadmap for Venus Exploration (Version 4, 1/29/14)  

E-Print Network [OSTI]

1 Roadmap for Venus Exploration (Version 4, 1/29/14) Introduction Venus is so similar solar systems. This Roadmap lays out a framework for the future exploration of Venus, encompassing expressed in this Roadmap should be recognized by NASA review panels as being consistent with VEXAG

Rathbun, Julie A.

415

Original article Exploration of a plant architecture database  

E-Print Network [OSTI]

Original article Exploration of a plant architecture database with the AMAPmod software illustrated plantes, Cirad, BP5035, 34032 Montpellier cedex 1, France bLaboratoire d'arboriculture fruitière, Inra, 2) Abstract - This paper describes the constitution and the statistical exploration of a plant architecture

Boyer, Edmond

416

Exploration for heavy crude oil and natural bitumen  

SciTech Connect (OSTI)

Heavy oil and tar sand reserves are enormous, and this 700-page volume breaks the topic down into six emphasis areas of: regional resources worldwide; characterization, maturation, and degradation; geological environments and migration; exploration methods; exploration histories; and recovery. An appendix presents a guidebook to Santa Maria, Cuyama, Taft-McKettrick, and Edna oil districts, Coast Ranges, California.

Not Available

1989-01-01T23:59:59.000Z

417

Static electricity measurements for lightning warnings -an exploration  

E-Print Network [OSTI]

Static electricity measurements for lightning warnings - an exploration H. Bloemink De Bilt, 2013 | Internal report; IR 2013-01 #12;#12;Static electricity measurements for lightning warnings - an exploration Version 1.0 Date January 2013 Status Final #12;#12;Static electricity measurements for lightning warnings

Haak, Hein

418

EMBEDDED SW DESIGN SPACE EXPLORATION AND AUTOMATION USING  

E-Print Network [OSTI]

EMBEDDED SW DESIGN SPACE EXPLORATION AND AUTOMATION USING UML-BASED TOOLS FLÁVIO R. WAGNER, carro}@inf.ufrgs.br Abstract: This tutorial discusses design space exploration and software automation based on an UML front-end. First, we review software automation tools targeted at the embedded systems

Wagner, Flávio Rech

419

EXPLORING ABORIGINAL FORESTRY AND ECOSYSTEM-BASED MANAGEMENT  

E-Print Network [OSTI]

EXPLORING ABORIGINAL FORESTRY AND ECOSYSTEM-BASED MANAGEMENT: A CASE STUDY OF COWICHAN TRIBES of Resource Management Title of Research Project: Exploring Aboriginal Forestry and Ecosystem-based Management aboriginal forestry will be required. First Nations share a common desire for control over their forest

420

Robot Exploration with Fast Frontier Detection: Theory and Experiments  

E-Print Network [OSTI]

Robot Exploration with Fast Frontier Detection: Theory and Experiments Matan Keidar MAVERICK Group, Department of Computer Science, Bar-Ilan University galk@cs.biu.ac.il ABSTRACT Frontier-based exploration is the most common approach to explo- ration, a fundamental problem in robotics. In frontier-based ex

Kaminka, Gal A.

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Edinburgh Research Explorer Processivity and Coupling in Messenger RNA Transcription  

E-Print Network [OSTI]

Edinburgh Research Explorer Processivity and Coupling in Messenger RNA Transcription Citation and processing that is not captured in the model. Methodology: In this paper, we explore the impact on the m, 'Processivity and Coupling in Messenger RNA Transcription' PLoS One, vol 5, no. 1, e8845, pp. 1-12., 10

Millar, Andrew J.

422

Active Exploration for Robot Parameter Selection in Episodic Reinforcement Learning  

E-Print Network [OSTI]

Active Exploration for Robot Parameter Selection in Episodic Reinforcement Learning Oliver Kroemer-dimensional. Given the inherent exploration-exploitation dilemma of the problem, we propose treating in continuous multi- dimensional spaces. The approach is based on Gaussian process regression, which can

423

Walk-in Intake Form First Year Advising & Exploration  

E-Print Network [OSTI]

Walk-in Intake Form First Year Advising & Exploration Student Development and Enrollment Services (Rev. 12/04/2012) Name: Current Major(s): PID: Current Minor(s): First Year Advising and Exploration process Course Withdrawal Other: 4. List any classes of concern and the reason(s) of your concern below: 5

Wu, Shin-Tson

424

Model building techniques for analysis.  

SciTech Connect (OSTI)

The practice of mechanical engineering for product development has evolved into a complex activity that requires a team of specialists for success. Sandia National Laboratories (SNL) has product engineers, mechanical designers, design engineers, manufacturing engineers, mechanical analysts and experimentalists, qualification engineers, and others that contribute through product realization teams to develop new mechanical hardware. The goal of SNL's Design Group is to change product development by enabling design teams to collaborate within a virtual model-based environment whereby analysis is used to guide design decisions. Computer-aided design (CAD) models using PTC's Pro/ENGINEER software tools are heavily relied upon in the product definition stage of parts and assemblies at SNL. The three-dimensional CAD solid model acts as the design solid model that is filled with all of the detailed design definition needed to manufacture the parts. Analysis is an important part of the product development process. The CAD design solid model (DSM) is the foundation for the creation of the analysis solid model (ASM). Creating an ASM from the DSM currently is a time-consuming effort; the turnaround time for results of a design needs to be decreased to have an impact on the overall product development. This effort can be decreased immensely through simple Pro/ENGINEER modeling techniques that summarize to the method features are created in a part model. This document contains recommended modeling techniques that increase the efficiency of the creation of the ASM from the DSM.

Walther, Howard P.; McDaniel, Karen Lynn; Keener, Donald; Cordova, Theresa Elena; Henry, Ronald C.; Brooks, Sean; Martin, Wilbur D.

2009-09-01T23:59:59.000Z

425

Compensation Techniques in Accelerator Physics  

SciTech Connect (OSTI)

Accelerator physics is one of the most diverse multidisciplinary fields of physics, wherein the dynamics of particle beams is studied. It takes more than the understanding of basic electromagnetic interactions to be able to predict the beam dynamics, and to be able to develop new techniques to produce, maintain, and deliver high quality beams for different applications. In this work, some basic theory regarding particle beam dynamics in accelerators will be presented. This basic theory, along with applying state of the art techniques in beam dynamics will be used in this dissertation to study and solve accelerator physics problems. Two problems involving compensation are studied in the context of the MEIC (Medium Energy Electron Ion Collider) project at Jefferson Laboratory. Several chromaticity (the energy dependence of the particle tune) compensation methods are evaluated numerically and deployed in a figure eight ring designed for the electrons in the collider. Furthermore, transverse coupling optics have been developed to compensate the coupling introduced by the spin rotators in the MEIC electron ring design.

Hisham Kamal Sayed

2011-05-31T23:59:59.000Z

426

Subranging technique using superconducting technology  

DOE Patents [OSTI]

Subranging techniques using "digital SQUIDs" are used to design systems with large dynamic range, high resolution and large bandwidth. Analog-to-digital converters (ADCs) embodying the invention include a first SQUID based "coarse" resolution circuit and a second SQUID based "fine" resolution circuit to convert an analog input signal into "coarse" and "fine" digital signals for subsequent processing. In one embodiment, an ADC includes circuitry for supplying an analog input signal to an input coil having at least a first inductive section and a second inductive section. A first superconducting quantum interference device (SQUID) is coupled to the first inductive section and a second SQUID is coupled to the second inductive section. The first SQUID is designed to produce "coarse" (large amplitude, low resolution) output signals and the second SQUID is designed to produce "fine" (low amplitude, high resolution) output signals in response to the analog input signals.

Gupta, Deepnarayan (Hawthorne, NY)

2003-01-01T23:59:59.000Z

427

Modeling techniques for simulating well behavior  

E-Print Network [OSTI]

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...

Rattu, Bungen Christina

2002-01-01T23:59:59.000Z

428

Infra-Red Surface-Plasmon-Resonance technique for biological studies  

E-Print Network [OSTI]

We report on a Surface-Plasmon-Resonance (SPR) technique based on Fourier -Transform - Infra - Red (FTIR) spectrometer. In contrast to the conventional surface plasmon technique, operating at a fixed wavelength and a variable angle of incidence, our setup allows the wavelength and the angle of incidence to be varied simultaneously. We explored the potential of the SPR technique in the infrared for biological studies involving aqueous solutions. Using computer simulations, we found the optimal combination of parameters (incident angle, wavelength) for performing this task. Our experiments with physiologically important glucose concentrations in water and in human plasma verified our computer simulations. Importantly, we demonstrated that the sensitivity of the SPR technique in the infrared range is not lower and in fact is even higher than that for visible light. We emphasize the advantages of infra red SPR for studying glucose and other biological molecules in living cells.

V. Lirtsman; M. Golosovsky; D. Davidov

2007-11-18T23:59:59.000Z

429

ARPEFS as an analytic technique  

SciTech Connect (OSTI)

Two modifications to the ARPEFS technique are introduced. These are studied using p(2 {times} 2)S/Cu(001) as a model system. The first modification is the obtaining of ARPEFS {chi}(k) curves at temperatures as low as our equipment will permit. While adding to the difficulty of the experiment, this modification is shown to almost double the signal-to-noise ratio of normal emission p(2 {times} 2)S/Cu(001) {chi}(k) curves. This is shown by visual comparison of the raw data and by the improved precision of the extracted structural parameters. The second change is the replacement of manual fitting of the Fourier filtered {chi}(k) curves by the use of the simplex algorithm for parameter determination. Again using p(2 {times} 2)S/Cu(001) data, this is shown to result in better agreement between experimental {chi}(k) curves and curves calculated based on model structures. The improved ARPEFS is then applied to p(2 {times} 2)S/Ni(111) and ({radical}3 {times} {radical}3) R30{degree}S/Ni(111). For p(2 {times} 2)S/Cu(001) we find a S-Cu bond length of 2.26 {Angstrom}, with the S adatom 1.31 {Angstrom} above the fourfold hollow site. The second Cu layer appears to be corrugated. Analysis of the p(2 {times} 2)S/Ni(111) data indicates that the S adatom adatom adsorbs onto the FCC threefold hollow site 1.53 {Angstrom} above the Ni surface. The S-Ni bond length is determined to be 2.13 {Angstrom}, indicating an outwards shift of the first layer Ni atoms. We are unable to assign a unique structure to ({radical}3 {times} {radical}3)R30{degree}S/Ni(111). An analysis of the strengths and weaknesses of ARPEFS as an experimental and analytic technique is presented, along with a summary of problems still to be addressed.

Schach von Wittenau, A.E.

1991-04-01T23:59:59.000Z

430

Best practice techniques for environmental radiological monitoring  

E-Print Network [OSTI]

Best practice techniques for environmental radiological monitoring Science Report ­ SC030308/SR SCHO0407BMNL-E-P #12;ii Science Report Best Practice Techniques for Environmental Radiological #12;iv Science Report Best Practice Techniques for Environmental Radiological Monitoring Executive

431

Edinburgh Research Explorer Pulmonary diesel particulate increases susceptibility to  

E-Print Network [OSTI]

Edinburgh Research Explorer Pulmonary diesel particulate increases susceptibility to myocardial, MR & Gray, GA 2014, 'Pulmonary diesel particulate increases susceptibility to myocardial ischemia. Pulmonary diesel particulate increases susceptibility to myocardial ischemia/reperfusion injury via

Millar, Andrew J.

432

Analysis Of Application Of Electronics In Exploration And Exploitation...  

Open Energy Info (EERE)

Of Electronics In Exploration And Exploitation Of Geothermal-Energy Sources In India Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Analysis Of...

433

Two-Meter Temperature Surveys for Geothermal Exploration Project...  

Open Energy Info (EERE)

Two-Meter Temperature Surveys for Geothermal Exploration Project at NAS Fallon Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Two-Meter...

434

Lunar lander propellant production for a multiple site exploration mission  

E-Print Network [OSTI]

A model has been developed to analyze the benefit of utilizing a processing plant architecture so that a lunar oxygen production demonstration mission can also provide a significant exploration and scientific return. This ...

Neubert, Joshua, 1981-

2004-01-01T23:59:59.000Z

435

Space Nuclear Program INL's role in energizing exploration  

ScienceCinema (OSTI)

Idaho National Laboratory is helping make space exploration possible with the development of radioisotope power systems, which can work in areas too harsh and too isolated in space where the suns rays cannot be used for energy.

Idaho National Laboratory

2010-01-08T23:59:59.000Z

436

Design space exploration and optimization using modern ship design tools  

E-Print Network [OSTI]

Modern Naval Architects use a variety of computer design tools to explore feasible options for clean sheet ship designs. Under the Naval Sea Systems Command (NAVSEA), the Naval Surface Warfare Center, Carderock Division ...

Jones, Adam T. (Adam Thomas)

2014-01-01T23:59:59.000Z

437

Deployment algorithms for multi-agent exploration and patrolling  

E-Print Network [OSTI]

Exploration and patrolling are central themes in distributed robotics. These deployment scenarios have deep fundamental importance in robotics, beyond the most obvious direct applications, as they can be used to model a ...

Volkov, Mikhail, S.M. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

438

GEOELECTROMAGNETIC EXPLORATION FOR NATURAL RESOURCES: MODELS, CASE STUDIES AND CHALLENGES  

E-Print Network [OSTI]

, model development is restricted to groundwater, geothermal and hydrocarbon resources, metallic oreGEOELECTROMAGNETIC EXPLORATION FOR NATURAL RESOURCES: MODELS, CASE STUDIES AND CHALLENGES MAXWELL A called geoelectromagnetic) methods as applied in the search for natural resources. First, the paper

Meju, Max

439

Exploring the material properties of small scale folded structures  

E-Print Network [OSTI]

make robotics more readily available to the average person. Although designs for a number of successful printable robots have already been produced, there has been little formal exploration into the materials properties ...

Uberti, Megan E

2013-01-01T23:59:59.000Z

440

From Exploration to Planning Cornelius Weber and Jochen Triesch  

E-Print Network [OSTI]

From Exploration to Planning Cornelius Weber and Jochen Triesch Frankfurt Institute for Advanced Studies, Johann Wolfgang Goethe University, Ruth-Moufang-StraÃ?e 1, Frankfurt am Main, Germany {c.weber

Weber, Cornelius

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

A Trade Space Model for Robotic Lunar Exploration  

E-Print Network [OSTI]

SSL # 11-10 #12;#12;A Trade Space Model for Robotic Lunar Exploration Zachary James Bailey, David W. Miller June 2010 SSL # 11-10 This work is based with minor corrections on the text of the thesis

442

Hyperspectral mineral mapping in support of geothermal exploration...  

Open Energy Info (EERE)

mineral mapping in support of geothermal exploration- Examples from Long Valley Caldera, CA and Dixie Valley, NV, USA Jump to: navigation, search OpenEI Reference LibraryAdd to...

443

Tradespace model for planetary surface exploration hopping vehicles  

E-Print Network [OSTI]

Robotic planetary surface exploration, which has greatly benefited humankind's scientific knowledge of the solar system, has to date been conducted by sedentary landers or by slow, terrain-limited rovers. However, there ...

Cunio, Phillip M

2012-01-01T23:59:59.000Z

444

An Integrated Study Method For Exploration Of Gas Hydrate Reservoirs...  

Open Energy Info (EERE)

approach for exploration of gas hydrate reservoirs in marine areas. Authors C. Y. Sun, B. H. Niu, P. F. Wen, Y. Y. Huang, H. Y. Wang, X. W. Huang and J. Li Published Journal...

445

Walter Baker Chocolate Factory : an adaptive reuse exploration  

E-Print Network [OSTI]

This thesis explores the processes of building evolution and the methods in which old buildings are recycled for continued use. Reuse is the process in which a building's life is extended through a preservation or alteration ...

Castro, Fernando D

1981-01-01T23:59:59.000Z

446

Children's School November 2014 Director's Corner: Exploring Nature  

E-Print Network [OSTI]

Park, we have broadened our recycling and composting programs, and we have added more natural elements hunt for trees and the Kindergarten's search for living and non-living things). Those explorations led

447

Exploring the Last Electromagnetic Frontier with the Long Wavelength Array  

E-Print Network [OSTI]

LWA Science with the Long Wavelength Demonstrator Array Radio transients offer a new frontier for next-generationExploring the Last Electromagnetic Frontier with the Long Wavelength Array The University of New. All solar system giant planets generate

Ellingson, Steven W.

448

T-593: Microsoft Internet Explorer unspecified code execution  

Broader source: Energy.gov [DOE]

Unspecified vulnerability in Microsoft Internet Explorer 8 on Windows 7 allows remote attackers to bypass Protected Mode and create arbitrary files by leveraging access to a Low integrity process.

449

Scientific Visualization Applications in Oil & Gas Exploration and Production  

E-Print Network [OSTI]

Scientific Visualization Applications in Oil & Gas Exploration and Production SIBGRAPI 2009 #12 Property cross plots #12;Oil and gas production analysis and optimization SIBGRAPI 2009 Structural maps with property distributions Well schematics Production network Gas injection optimization Reservoir slices #12

Lewiner, Thomas (Thomas Lewiner)

450

Geothermal Exploration Using Aviris Remote Sensing Data Over...  

Open Energy Info (EERE)

Aviris Remote Sensing Data Over Fish Lake Valley, Nv Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Geothermal Exploration Using Aviris Remote...

451

Geothermal Resources Exploration And Assessment Around The Cove...  

Open Energy Info (EERE)

Exploration And Assessment Around The Cove Fort-Sulphurdale Geothermal Field In Utah By Multiple Geophysical Imaging Jump to: navigation, search OpenEI Reference LibraryAdd to...

452

Transportation & Work: Exploring Car Usage and Employment Outcomes  

E-Print Network [OSTI]

Transportation & Work: Exploring Car Usage and Employment Outcomes in the LSAL Data Field Area...................................................................................................10 5. DESCRIPTIVE STATISTICS of 1996, or "welfare reform," attention turned to the role of transportation in job search and employment

Bertini, Robert L.

453

Two urban corners : a design exploration for the Holloway block  

E-Print Network [OSTI]

This thesis explores built possibilities for two public street corners at the Holloway Block in Burlington, Vermont The site is at the historic commercial center of the town, and consisted until recently of abandoned ...

Cabot, Thomas Dudley

1982-01-01T23:59:59.000Z

454

Collaborative Systems Thinking Research: Exploring systems thinking within teams  

E-Print Network [OSTI]

Collaborative Systems Thinking Research: Exploring systems thinking within teams Caroline T. Lamb research that seeks to develop an empirical basis for collaborative systems thinking, defined as "an of thinking styles, design processes, tools, and communication media to consider system attributes

de Weck, Olivier L.

455

Kampala's shitscape: exploring urbanity and sanitation in Uganda   

E-Print Network [OSTI]

In this thesis, I explore the collective excrement apparatus of Kampala, or the “shitscape”. I consider the diverse ways that the city’s inhabitants utilise different materials to manage their daily defecation, from flush ...

Terreni Brown, Stephanie Elizabeth; Brown, Stephanie

2014-11-27T23:59:59.000Z

456

Morphing the CMB: a technique for interpolating power spectra  

E-Print Network [OSTI]

The confrontation of the Cosmic Microwave Background (CMB) theoretical angular power spectrum with available data often requires the calculation of large numbers of power spectra. The standard practice is to use a fast code to compute the CMB power spectra over some large parameter space, in order to estimate likelihoods and constrain these parameters. But as the dimensionality of the space under study increases, then even with relatively fast anisotropy codes, the computation can become prohibitive. This paper describes the employment of a "morphing" strategy to interpolate new power spectra based on previously calculated ones. We simply present the basic idea here, and illustrate with a few examples; optimization of interpolation schemes will depend on the specific application. In addition to facilitating the exploration of large parameter spaces, this morphing technique may be helpful for Fisher matrix calculations involving derivatives.

Kris Sigurdson; Douglas Scott

2000-03-16T23:59:59.000Z

457

Observational Techniques for Detecting Planets in Binary Systems  

E-Print Network [OSTI]

Searches for planets in close binary systems explore the degree to which stellar multiplicity inhibits or promotes planet formation. There is a degeneracy between planet formation models when only systems with single stars are studied--several mechanisms appear to be able to produce such a final result. This degeneracy is lifted by searching for planets in binary systems; the resulting detections (or evidence of non-existence) of planets in binaries isolates which models may contribute to how planets form in nature. In this chapter, we consider observational efforts to detect planetary companions to binary stars in two types of hierarchical planet-binary configurations: first ``S-type'' planets which orbit just one of the stars, with the binary period being much longer than the planet's; second, ``P-type'' or circumbinary planets, where the planet simultaneously orbits both stars, and the planetary orbital period is much longer than that of the binary. The S-type planet finding techniques are different for binaries that can or cannot be spatially resolved. For wider systems, techniques reviewed include dualstar interferometric differential astrometry and precision radial velocities. Alternatively, unresolved binaries can be studied using modified dualstar "PHASES-style" differential astrometry or a modification of the radial velocity technique for composite spectra. Should a fortunately aligned--but still long period--binary be found, eclipse timing can also reveal the presence of S-type planets. Methods for detecting P-type planets include the composite-spectra variant of the radial velocity technique and eclipse timing.

Matthew W. Muterspaugh; Maciej Konacki; Benjamin F. Lane; Eric Pfahl

2007-05-21T23:59:59.000Z

458

Property:ExplorationSubGroup | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to: navigation,ExplorationPermitAgency-Drilling Property

459

Property:ExplorationTimePerMetric | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to: navigation,ExplorationPermitAgency-Drilling

460

North African geology: exploration matrix for potential major hydrocarbon discoveries  

SciTech Connect (OSTI)

Based on results and models presented previously, it is possible to consider an exploration matrix that examines the 5 basic exploration parameters: source, reservoir, timing, structure, and seal. This matrix indicates that even those basins that have had marginal exploration successes, including the Paleozoic megabasin and downfaulted Triassic grabens of Morocco, the Cyrenaican platform of Libya, and the Tunisia-Sicily shelf, have untested plays. The exploration matrix also suggests these high-risk areas could change significantly, if one of the 5 basic matrix parameters is upgraded or if adjustments in political or financial risk are made. The Sirte basin and the Gulf of Suez, 2 of the more intensely explored areas, also present attractive matrix prospects, particularly with deeper Nubian beds or with the very shallow Tertiary sections. The Ghadames basin of Libya and Tunisia shows some potential, but its evaluation responds strongly to stratigraphic and external nongeologic matrix variations based on degree of risk exposure to be assumed. Of greatest risk in the matrix are the very deep Moroccan Paleozoic clastic plays and the Jurassic of Sinai. However, recent discoveries may upgrade these untested frontier areas. Based on the matrix generated by the data presented at a North African Petroleum Geology symposium, significant hydrocarbon accumulations are yet to be found. The remaining questions are: where in the matrix does each individual company wish to place its exploration capital and how much should be the risk exposure.

Kanes, W.H.; O'Connor, T.E.

1985-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

RISK REDUCTION WITH A FUZZY EXPERT EXPLORATION TOOL  

SciTech Connect (OSTI)

Incomplete or sparse data such as geologic or formation characteristics introduce a high level of risk for oil exploration and development projects. ''Expert'' systems developed and used in several disciplines and industries have demonstrated beneficial results when working with sparse data. State-of-the-art expert exploration tools, relying on a database, and computer maps generated by neural networks and user inputs, have been developed through the use of ''fuzzy'' logic, a mathematical treatment of imprecise or non-explicit parameters and values. Oil prospecting risk has been reduced with the use of these properly verified and validated ''Fuzzy Expert Exploration (FEE) Tools.'' Through the course of this project, FEE Tools and supporting software were developed for two producing formations in southeast New Mexico. Tools of this type can be beneficial in many regions of the U.S. by enabling risk reduction in oil and gas prospecting as well as decreased prospecting and development costs. In today's oil industry environment, many smaller exploration companies lack the resources of a pool of expert exploration personnel. Downsizing, volatile oil prices, and scarcity of domestic exploration funds have also affected larger companies, and will, with time, affect the end users of oil industry products in the U.S. as reserves are depleted. The FEE Tools benefit a diverse group in the U.S., allowing a more efficient use of scarce funds, and potentially reducing dependence on foreign oil and providing lower product prices for consumers.

Robert S. Balch; Ron Broadhead

2005-03-01T23:59:59.000Z

462

Small Body Exploration Technologies as Precursors for Interstellar Robotics  

SciTech Connect (OSTI)

The scientific activities undertaken to explore our Solar System will be the same as required someday at other stars. The systematic exploration of primitive small bodies throughout our Solar System requires new technologies for autonomous robotic spacecraft. These diverse celestial bodies contain clues to the early stages of the Solar System's evolution as well as information about the origin and transport of water-rich and organic material, the essential building blocks for life. They will be among the first objects studied at distant star systems. The technologies developed to address small body and outer planet exploration will form much of the technical basis for designing interstellar robotic explorers. The Small Bodies Assessment Group, which reports to NASA, initiated a Technology Forum in 2011 that brought together scientists and technologists to discuss the needs and opportunities for small body robotic exploration in the Solar System. Presentations and discussions occurred in the areas of mission and spacecraft design, electric power, propulsion, avionics, communications, autonomous navigation, remote sensing and surface instruments, sampling, intelligent event recognition, and command and sequencing software. In this paper, the major technology themes from the Technology Forum are reviewed, and suggestions are made for developments that will have the largest impact on realizing autonomous robotic vehicles capable of exploring other star systems.

Noble, Robert; /SLAC; Sykes, Mark V.; /PSI, Tucson

2012-02-15T23:59:59.000Z

463

Update on petroleum exploration activities in the Philippines  

SciTech Connect (OSTI)

The first significant event in Philippine Petroleum exploration dates back to 1896 with the drilling of Toledo-1 in Cebu by Smith & Bell. From the 1950`s to the 1970`s, widespread exploration activities were carried out but it was only eighty years after the first oil drilling in 1896 that oil was finally discovered in commercial quantity in Northwest Palawan. This could be attributed to the fact that serious exploration for petroleum was made with the enactment of Presidential Decree No. 87, better known as the {open_quotes}Oil Exploration and Development Act of 1972{close_quotes}, which takes into effect the current Service Contract System. Amendments to P.D. No. 87 is underway to further improve its incentive package and make it more attractive to explorationists. Petroleum exploration in the Philippines continues to be an energetic industry even if the players are not always rewarded with finds. Frontier areas have become attractive for exploration in view of the continuing research studies resulting to increased database thereat. While Northwest Palawan continues to be the hub of action, frontier areas as well as the more risky deepwater acreages still generate interests, if one wishes to be an active player in a growing energy-hungry economy.

Salcedo, B.H.C.; Bausa, G.J.G.; Ocampo. I.U. [and others

1996-12-31T23:59:59.000Z

464

Update on petroleum exploration activities in the Philippines  

SciTech Connect (OSTI)

The first significant event in Philippine Petroleum exploration dates back to 1896 with the drilling of Toledo-1 in Cebu by Smith Bell. From the 1950's to the 1970's, widespread exploration activities were carried out but it was only eighty years after the first oil drilling in 1896 that oil was finally discovered in commercial quantity in Northwest Palawan. This could be attributed to the fact that serious exploration for petroleum was made with the enactment of Presidential Decree No. 87, better known as the [open quotes]Oil Exploration and Development Act of 1972[close quotes], which takes into effect the current Service Contract System. Amendments to P.D. No. 87 is underway to further improve its incentive package and make it more attractive to explorationists. Petroleum exploration in the Philippines continues to be an energetic industry even if the players are not always rewarded with finds. Frontier areas have become attractive for exploration in view of the continuing research studies resulting to increased database thereat. While Northwest Palawan continues to be the hub of action, frontier areas as well as the more risky deepwater acreages still generate interests, if one wishes to be an active player in a growing energy-hungry economy.

Salcedo, B.H.C.; Bausa, G.J.G.; Ocampo. I.U. (and others)

1996-01-01T23:59:59.000Z

465

Parallel, staged opening switch power conditioning techniques for flux compression generator applications  

SciTech Connect (OSTI)

The Air Force Weapons Laboratory, working jointly with Los Alamos National Laboratory, has conducted a series of experiments directed at exploring composite, or staged, switching techniques for use in opening switches in applications which require the conduction of very high currents (or current densities) with very low losses for relatively long times (several tens of microseconds), and the interruption of these currents in much shorter times (ultimately a few hundred nanoseconds). This paper reports the results of those experiments.

Reinovsky, R.E.; Levi, P.S.; Bueck, J.C.; Goforth, J.H.

1985-01-01T23:59:59.000Z

466

Stratigraphic statistical curvature analysis techniques  

SciTech Connect (OSTI)

SCAT applies statistical techniques to dipmeter data to identify patterns of bulk curvature, determine transverse and longitudinal structural directions, and reconstruct cross sections and contour maps. STRAT-SCAT applies the same concepts to geometric interpretation of multistoried unimodal, bimodal, or trough-type cross-bedding and also to seismic stratigraphy-scale stratigraphic structures. Structural dip, which comprises the bulk of dipmeter data, is related to beds that (statistically) were deposited with horizontal attitudes; stratigraphic dip is related to beds that were deposited with preferentially oriented nonhorizontal attitudes or to beds that assumed such attitudes because of differential compaction. Stratigraphic dip generates local zones of departure from structural dip on special SCAT plots. The RMS (root-mean-square) of apparent structural dip is greatest in the (structural) T-direction and least in the perpendicular L-direction; the RMS of stratigraphic dip (measured with respect to structural dip) is greatest in the stratigraphic T*-direction and least in the stratigraphic L*-direction. Multistoried, cross-bedding appears on T*-plots as local zones of either greater scatter or statistically significant departure of stratigraphic median dip from structural dip. In contrast, the L*-plot (except for trough-type cross-bedding) is sensitive to cross-bedding. Seismic stratigraphy-scale depositional sequences are identified on Mercator dip versus azimuth plots and polar tangent plots as secondary cylindrical-fold patterns imposed on global structural patterns. Progradational sequences generate local cycloid-type patterns on T*-plots, and compactional sequences generate local cycloid-type patterns on T*-plots, and compactional sequences generate local half-cusp patterns. Both features, however, show only structural dip on L*-plots.

Bengtson, C.A.; Ziagos, J.P.

1987-05-01T23:59:59.000Z

467

VERIFICATION OF A NUMERICAL SIMULATION TECHNIQUE FOR NATURAL CONVECTION  

E-Print Network [OSTI]

on advanced passive cooling techniques. Systems Analysis andand fabrica- tion techniques. Cooling Systems Research. This

Gadgil, A.

2008-01-01T23:59:59.000Z

468

20 Years of Four HCI Conferences: A Visual Exploration 1 Running head: 20 YEARS OF FOUR HCI CONFERENCES: A VISUAL EXPLORATION  

E-Print Network [OSTI]

with the exploration process that produced them. Some expected patterns emerged, such as that -- like most social20 Years of Four HCI Conferences: A Visual Exploration 1 Running head: 20 YEARS OF FOUR HCI CONFERENCES: A VISUAL EXPLORATION 20 Years of Four HCI Conferences: A Visual Exploration Nathalie Henry INRIA

Paris-Sud XI, Université de

469

STATEMENT OF CONSIDERATIONS ADVANCE WAIVER OF PATENT RIGHTS TO...  

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

FC26-06NT42959 FOR "HARSH ENVIRONMENT ELECTRONICS PACKAGING FOR DOWN-HOLE GAS AND OIL EXPLORATION"; CH-140; W(A)-07-020 General Electric (GE), through its GE Global Research...

470

Fundamentals and Techniques of Nonimaging  

SciTech Connect (OSTI)

This is the final report describing a long term basic research program in nonimaging optics that has led to major advances in important areas, including solar energy, fiber optics, illumination techniques, light detectors, and a great many other applications. The term ''nonimaging optics'' refers to the optics of extended sources in systems for which image forming is not important, but effective and efficient collection, concentration, transport, and distribution of light energy is. Although some of the most widely known developments of the early concepts have been in the field of solar energy, a broad variety of other uses have emerged. Most important, under the auspices of this program in fundamental research in nonimaging optics established at the University of Chicago with support from the Office of Basic Energy Sciences at the Department of Energy, the field has become very dynamic, with new ideas and concepts continuing to develop, while applications of the early concepts continue to be pursued. While the subject began as part of classical geometrical optics, it has been extended subsequently to the wave optics domain. Particularly relevant to potential new research directions are recent developments in the formalism of statistical and wave optics, which may be important in understanding energy transport on the nanoscale. Nonimaging optics permits the design of optical systems that achieve the maximum possible concentration allowed by physical conservation laws. The earliest designs were constructed by optimizing the collection of the extreme rays from a source to the desired target: the so-called ''edge-ray'' principle. Later, new concentrator types were generated by placing reflectors along the flow lines of the ''vector flux'' emanating from lambertian emitters in various geometries. A few years ago, a new development occurred with the discovery that making the design edge-ray a functional of some other system parameter permits the construction of whole new classes of devices with greatly expanded capabilities compared to conventional approaches. These ''tailored edge-ray'' designs have dramatically broadened the range of geometries in which nonimaging optics can provide a significant performance improvement. Considerable progress continues to be made in furthering the incorporation of nonimaging secondaries into practical high concentration and ultra-high concentration solar collector systems. In parallel with the continuing development of nonimaging geometrical optics, our group has been working to develop an understanding of certain fundamental physical optics concepts in the same context. In particular, our study of the behavior of classical radiance in nonimaging systems, has revealed some fundamentally important new understandings that we have pursued both theoretically and experimentally. The field is still relatively new and is rapidly gaining widespread recognition because it fuels many industrial applications. Because of this, during the final years of the project, our group at Chicago has been working more closely with a team of industrial scientists from Science Applications International Corporation (SAIC) at first informally, and later more formally, beginning in 1998, under a formal program initiated by the Department of Energy and incrementally funded through this existing grant. This collaboration has been very fruitful and has led to new conceptual breakthroughs which have provided the foundation for further exciting growth. Many of these concepts are described in some detail in the report.

O'Gallagher, J. J.; Winston, R.

2003-07-10T23:59:59.000Z

471

Efficient Algorithmic Techniques for Several Multidimensional ...  

E-Print Network [OSTI]

Politehnica University of Bucharest, Romania, mugurel.andreica@cs.pub.ro. Abstract: In this paper I present several novel, efficient, algorithmic techniques for.

Mugurel

2008-10-23T23:59:59.000Z

472

Eddy current technique for predicting burst pressure  

DOE Patents [OSTI]

A signal processing technique which correlates eddy current inspection data from a tube having a critical tubing defect with a range of predicted burst pressures for the tube is provided. The method can directly correlate the raw eddy current inspection data representing the critical tubing defect with the range of burst pressures using a regression technique, preferably an artificial neural network. Alternatively, the technique deconvolves the raw eddy current inspection data into a set of undistorted signals, each of which represents a separate defect of the tube. The undistorted defect signal which represents the critical tubing defect is related to a range of burst pressures utilizing a regression technique.

Petri, Mark C. (Yorkville, IL); Kupperman, David S. (Oak Park, IL); Morman, James A. (Woodridge, IL); Reifman, Jaques (Western Springs, IL); Wei, Thomas Y. C. (Downers Grove, IL)

2003-01-01T23:59:59.000Z

473

Uncertainty Quantification Techniques for Sensor Calibration...  

Office of Scientific and Technical Information (OSTI)

Uncertainty Quantification Techniques for Sensor Calibration Monitoring in Nuclear Power Plants Re-direct Destination: This report describes research towards the development of...

474

Computer vision techniques for underwater navigation  

E-Print Network [OSTI]

DCS) Chapter 2 Computer Vision . . 2.1 Labeling . . . . 2.2OF CALIFORNIA, SAN DIEGO Computer Vision Techniques fordegree Master of Science in Computer Science by Christopher

Barngrover, Christopher M.

2010-01-01T23:59:59.000Z

475

Uncertainty Quantification Techniques for Sensor Calibration...  

Office of Scientific and Technical Information (OSTI)

Uncertainty Quantification Techniques for Sensor Calibration Monitoring in Nuclear Power Plants Re-direct Destination: Temp Data Fields Ramuhalli, Pradeep; Lin, Guang; Crawford,...

476

Optimization Online - Smoothing techniques for solving semidefinite ...  

E-Print Network [OSTI]

Oct 5, 2009 ... Smoothing techniques for solving semidefinite programs with many constraints. Michael B rgisser(michael.buergisser ***at*** ifor.math.ethz.ch)

Michael B rgisser

2009-10-05T23:59:59.000Z

477

RISK REDUCTION WITH A FUZZY EXPERT EXPLORATION TOOL  

SciTech Connect (OSTI)

Incomplete or sparse information on types of data such as geologic or formation characteristics introduces a high level of risk for oil exploration and development projects. ''Expert'' systems developed and used in several disciplines and industries have demonstrated beneficial results. A state-of-the-art exploration ''expert'' tool, relying on a computerized database and computer maps generated by neural networks, is being developed through the use of ''fuzzy'' logic, a relatively new mathematical treatment of imprecise or non-explicit parameters and values. Oil prospecting risk can be reduced with the use of a properly developed and validated ''Fuzzy Expert Exploration (FEE) Tool.'' This FEE Tool can be beneficial in many regions of the U.S. by enabling risk reduction in oil and gas prospecting as well as decreased prospecting and development costs. In the 1998-1999 oil industry environment, many smaller exploration companies lacked the resources of a pool of expert exploration personnel. Downsizing, low oil prices, and scarcity of exploration funds have also affected larger companies, and will, with time, affect the end users of oil industry products in the U.S. as reserves are depleted. The FEE Tool will benefit a diverse group in the U.S., leading to a more efficient use of scarce funds, and possibly decreasing dependence on foreign oil and lower product prices for consumers. This fifth annual (and tenth of 12 semi-annual reports) contains a summary of progress to date, problems encountered, plans for the next year, and an assessment of the prospects for future progress. The emphasis during the March 2003 through March 2004 period was directed toward completion of the Brushy Canyon FEE Tool and to Silurian-Devonian geology, and development of rules for the Devonian fuzzy system, and on-line software.

Robert Balch

2004-04-08T23:59:59.000Z

478

RISK REDUCTION WITH A FUZZY EXPERT EXPLORATION TOOL  

SciTech Connect (OSTI)

Incomplete or sparse information on types of data such as geologic or formation characteristics introduces a high level of risk for oil exploration and development projects. ''Expert'' systems developed and used in several disciplines and industries have demonstrated beneficial results. A state-of-the-art exploration ''expert'' tool, relying on a computerized database and computer maps generated by neural networks, is being developed through the use of ''fuzzy'' logic, a relatively new mathematical treatment of imprecise or non-explicit parameters and values. Oil prospecting risk can be reduced with the use of a properly developed and validated ''Fuzzy Expert Exploration (FEE) Tool.'' This FEE Tool can be beneficial in many regions of the U.S. by enabling risk reduction in oil and gas prospecting as well as decreased prospecting and development costs. In the 1998-1999 oil industry environment, many smaller exploration companies lacked the resources of a pool of expert exploration personnel. Downsizing, low oil prices, and scarcity of exploration funds have also affected larger companies, and will, with time, affect the end users of oil industry products in the U.S. as reserves are depleted. The FEE Tool will benefit a diverse group in the U.S., leading to a more efficient use of scarce funds, and possibly decreasing dependence on foreign oil and lower product prices for consumers. This ninth of ten semi-annual reports contains a summary of progress to date, problems encountered, plans for the next year, and an assessment of the prospects for future progress. The emphasis during the March 2003 through September 2003 period was directed toward Silurian-Devonian geology, development of rules for the fuzzy system, and on-line software.

Robert Balch

2003-10-15T23:59:59.000Z

479

RISK REDUCTION WITH A FUZZY EXPERT EXPLORATION TOOL  

SciTech Connect (OSTI)

Incomplete or sparse information on types of data such as geologic or formation characteristics introduces a high level of risk for oil exploration and development projects. ''Expert'' systems developed and used in several disciplines and industries have demonstrated beneficial results. A state-of-the-art exploration ''expert'' tool, relying on a computerized database and computer maps generated by neural networks, is being developed through the use of ''fuzzy'' logic, a relatively new mathematical treatment of imprecise or non-explicit parameters and values. Oil prospecting risk can be reduced with the use of a properly developed and validated ''Fuzzy Expert Exploration (FEE) Tool.'' This FEE Tool can be beneficial in many regions of the U.S. by enabling risk reduction in oil and gas prospecting as well as decreased prospecting and development costs. In the 1998-1999 oil industry environment, many smaller exploration companies lacked the resources of a pool of expert exploration personnel. Downsizing, low oil prices, and scarcity of exploration funds have also affected larger companies, and will, with time, affect the end users of oil industry products in the U.S. as reserves are depleted. The pool of experts is much reduced today. The FEE Tool will benefit a diverse group in the U.S., leading to a more efficient use of scarce funds, and possibly decreasing dependence on foreign oil and lower product prices for consumers. This fourth of five annual reports contains a summary of progress to date, problems encountered, plans for the next year, and an assessment of the prospects for future progress. The emphasis during the April 2002 through March 2003 period was directed toward Silurian-Devonian geology, development of rules for the fuzzy system, and on-line software.

Robert Balch

2003-04-15T23:59:59.000Z

480

Risk Reduction with a Fuzzy Expert Exploration Tool  

SciTech Connect (OSTI)

A state-of-the-art exploration ''expert'' tool, relying on a computerized database and computer maps generated by neural networks, was developed through the use of ''fuzzy'' logic, a relatively new mathematical treatment of imprecise or non-explicit parameters and values. Oil prospecting risk can be reduced with the use of a properly developed and validated ''Fuzzy Expert Exploration (FEE) Tool.'' This FEE Tool can be beneficial in many regions of the U.S. by enabling risk reduction in oil and gas prospecting as well as decreased prospecting and development costs.

Weiss, William W.; Broadhead, Ron; Mundorf, William R.

2003-03-06T23:59:59.000Z

Note: This page contains sample records for the topic "downhole techniques exploration" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Property:EnvReviewNonInvasiveExploration | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to: navigation, search Property Name EnvReviewNonInvasiveExploration

482

Property:ExplorationCostPerMetric | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to: navigation, searchEstimatedTimeMedian JumpExplorationBasis

483

Property:ExplorationPermit-Drilling | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to: navigation, searchEstimatedTimeMedianExplorationNotesDrilling

484

Property:ExplorationPermitAgency-Drilling | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to: navigation,ExplorationPermitAgency-Drilling Property Type Page

485

Property:ExplorationPermitAgency-PreDrilling | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to: navigation,ExplorationPermitAgency-Drilling Property Type

486

Black Warrior: Sub-soil gas and fluid inclusion exploration and...  

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

Black Warrior: Sub-soil gas and fluid inclusion exploration and slim well drilling John Casteel Nevada Geothermal Power Co. Validation of Innovative Exploration Technologies May...

487

Help-seeking in the event of psychological distress: a qualitative exploration.  

E-Print Network [OSTI]

??Aim This thesis explores the seeking of help from a General Practitioner in the event of psychological distress. The study explores help-seeking, lay understanding around… (more)

Brown, Susan

2013-01-01T23:59:59.000Z

488

E-Print Network 3.0 - astronaut-rover exploration strategies...  

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

for Mobile Robots Francesco Amigoni Abstract... mobile robots. An efficient map building process is based on a good exploration strategy that determines... it. Several exploration...

489

Comparative Studies of Clustering Techniques for Real-Time Dynamic Model Reduction  

E-Print Network [OSTI]

Dynamic model reduction in power systems is necessary for improving computational efficiency. Traditional model reduction using linearized models or offline analysis would not be adequate to capture power system dynamic behaviors, especially the new mix of intermittent generation and intelligent consumption makes the power system more dynamic and non-linear. Real-time dynamic model reduction emerges as an important need. This paper explores the use of clustering techniques to analyze real-time phasor measurements to determine generator groups and representative generators for dynamic model reduction. Two clustering techniques -- graph clustering and evolutionary clustering -- are studied in this paper. Various implementations of these techniques are compared and also compared with a previously developed Singular Value Decomposition (SVD)-based dynamic model reduction approach. Various methods exhibit different levels of accuracy when comparing the reduced model simulation against the original model. But some ...

Hogan, Emilie; Halappanavar, Mahantesh; Huang, Zhenyu; Lin, Guang; Lu, Shuai; Wang, Shaobu

2015-01-01T23:59:59.000Z

490

Efficient Techniques of ANN-Based Microwave  

E-Print Network [OSTI]

.g., sintering) MW NDE/NDT Technique Where Used W F CW F CW F CW F C WorkshopWorkshopWorkshopWorkshop #12 in closed systems ­ an attractive technology of NDE/NDT capable of serving many practical needs. W F CW F CW of all the proposed techniques: NDE/NDT of objects in closed systems (resonators or waveguides

Yakovlev, Vadim

491

Opto-electrokinetic manipulation technique for highperformance  

SciTech Connect (OSTI)

This communication first demonstrates bio-compatibility of a recently developed opto-electrokinetic manipulation technique, using microorganisms. Aggregation, patterning, translation, trapping and size-based separation of microorganisms performed with the technique firmly establishes its usefulness for development of a high-performance on-chip bioassay system.

Kwon, Jae-Sung [Purdue University; Ravindranath, Sandeep [Purdue University; Kumar, Aloke [ORNL; Irudayaraj, Joseph [Purdue University; Wereley, Steven T. [Purdue University

2012-01-01T23:59:59.000Z

492

Annual Tour Ready to Explore New Mexico's Lower Pecos River  

E-Print Network [OSTI]

Annual Tour Ready to Explore New Mexico's Lower Pecos River By Steve Ress The itinerary is set and the seats have been filled for an early June bus tour to New Mexico's lower Pecos River basin compacts on Nebraska's Republican River and New Mexico's Pecos River to see what can be learned from

Nebraska-Lincoln, University of

493

NanoKids Project 21st Century Explorers  

E-Print Network [OSTI]

years. This funding will support the work of America's most creative minds as they explore promising areas such as nanotechnology, supercomputing, and alternative energy sources." #12;The Problem Most and Stage 1991 #12;Why the Big Push? #12;Why the Big Push? #12;3. The Bureau of Labor Statistics projects

494

MEMORY DESIGN AND EXPLORATION FOR LOW POWER, EMBEDDED SYSTEMS  

E-Print Network [OSTI]

by (i) applying memory optimizing transformations such as loop transformations, (ii) storing frequently transformations. In this paper, we describe a procedure for memory design and exploration for low power embedded optimizing transformations such as loop transformations. While there exists a large number of loop

Kambhampati, Subbarao

495

Power system requirements and selection for the space exploration initiative  

SciTech Connect (OSTI)

The Space Exploration Initiative (SEI) seeks to reestablish a US program of manned and unmanned space exploration. The President has called for a program which includes a space station element, a manned habitation of the moon, and a human exploration of Mars. The NASA Synthesis Group has developed four significantly different architectures for the SEI program. One key element of a space exploration effort is the power required to support the missions. The Power Speciality Team of the Synthesis Group was tasked with assessing and evaluating the power requirements and candidate power technologies for such missions. Inputs to the effort came from existing NASA studies as well as other governments agency inputs such as those from DOD and DOE. In addition, there were industry and university briefings and results of solicitations from the AIAA and the general public as part of the NASA outreach effort. Because of the variety of power needs in the SEI program, there will be a need for multiple power system technologies including solar, nuclear and electrochemical. Due to the high rocket masses required to propel payloads to the moon and beyond to Mars, there is great emphasis placed on the need for high power density and high energy density systems. Power system technology development work is needed results will determine the ultimate technology selections. 23 refs., 10 figs.

Biringer, K.L. (Sandia National Labs., Albuquerque, NM (United States)); Bartine, D.E. (Oak Ridge National Lab., TN (United States)); Buden, D. (Idaho National Engineering Lab., Idaho Falls, ID (United States)); Foreman, J. (Naval Research Lab., Washington, DC (United States)); Harrison, S. (Strategic Defense Initiative Organization, Washington, DC (United States))

1991-01-01T23:59:59.000Z

496

Exploring Reliability for Automatic Identity Verification with Statistical Shape Models  

E-Print Network [OSTI]

Exploring Reliability for Automatic Identity Verification with Statistical Shape Models Federico M reliability measure of the result. In fact, the segmentation process is One ofthe drawbacks ofstatistical to a wrong result [4]. generic reliability measure for statistical shape models. It This problem

Frangi, Alejandro

497

EXPLORING PERSONAL MEDIA: A SPATIAL INTERFACE SUPPORTING USER-DEFINED  

E-Print Network [OSTI]

categorizations to personal media data using the fling-and-flock metaphor. This allows personal media of personal media data, rigid organizing metaphors, and difficulty in rapid data access. Users understandEXPLORING PERSONAL MEDIA: A SPATIAL INTERFACE SUPPORTING USER-DEFINED SEMANTIC REGIONS Hyunmo Kang

Golbeck, Jennifer

498

Personal Media Exploration with Semantic Regions Hyunmo Kang  

E-Print Network [OSTI]

@cs.umd.edu ABSTRACT Computer users deal with large amount of personal media data and they often face problems mental models toward the personal media data. A prototype personal media exploring application, Media of personal media data such as images, audio clips, videos, web pages, emails, and various document files

Golbeck, Jennifer

499

Page 1Exploring Materials, Fall 2013 continued on page 14  

E-Print Network [OSTI]

treating, materials testing, and corro- sion. His projects include the use of 3D printed sand molds cellular structure produced using a 3D printed sand mold #12;Page 2 Exploring Materials, Fall 2013 it is working with researchers in Mechanical Engineering, Engineering Science and Mechanics, Sustainable

Buehrer, R. Michael

500

Memory efficient RNA energy landscape exploration -Supplementary Material -  

E-Print Network [OSTI]

Memory efficient RNA energy landscape exploration - Supplementary Material - Martin Mann 1 , Marcel on two different transition models. While the pure barrier tree dynamics (lower plot) resembles correspond to energy sorted ranks. Simulations were started from the unstructured open chain macro-state (oc

Brendel, Volker