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Note: This page contains sample records for the topic "horizontal rig count" 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.


1

U. S. rig count drops below 600, a post-1940 low  

SciTech Connect

This paper reports that the Baker Hughes Inc. count of active U.S. rotary rigs as of June 12 fell to less than 600 the first time since that tally began in 1940. The previous modern record low was set at 610 the previous week. Baker Hughes reported about 1,400 rigs idle in the U.S. last week. Using a different criteria, the Smith International count of U.S. active rigs fell seven units to 653 the week ended June 12, compared with a count of 910 the previous year. Baker Hughes predecessor Hughes Tool Co. began keeping monthly records of active U.S. rigs in January 1940. The lowest monthly count that year was 857. It changed to a weekly count in January 1949. The milestone was met wit calls for relief for the U.S. upstream sector from industry and government officials in Washington.

Not Available

1992-06-22T23:59:59.000Z

2

Rig Efficiency Paper  

Annual Energy Outlook 2012 (EIA)

"active" annual rig count which is an imprecise and subjective task. Baker Hughes, 5 Smith, 6 ReedHycalog (Now NOV), 7 Schlumberger, 8 and IADC 9 publicly report the number of...

3

39th annual Reed rig census  

SciTech Connect

This paper reports on cutbacks in U.S. exploration and development drilling during the first half of 1991 which squeezed most of the optimism out of the drilling industry. Just how rough the year has been is underscored by the results of this year's rig census. The number of rotary rigs available for U.S. drilling declined by only 69 units (3%) during the past 12 months. But despite those withdrawals from competition, only 66% of the remaining rigs were working at the time the census was taken. Results of the 1991 census contrasted sharply with the stability and optimism that seemed apparent a year ago when 72% of the available rig fleet met the census definition of active. At that time, the mini-boom in horizontal drilling coupled with tax-credit- driven gas drilling led to a relatively high rig utilization rate and suggested that rig supply and demand might be close to an economically acceptable balance. However, it quickly became apparent in early 1991 that industry optimism was unjustified. Horizontal drilling began to drop and the lowest natural gas prices in 12 years triggered rapid declines in gas drilling. Although oil prices have been relatively stable and above $18 per bbl since January 1989, most major operators have concluded that a better return on investment can be had outside the U.S. and have drastically cut their domestic drilling budgets. These factors, combined with softened energy demand from the worldwide recession, further slowed U.S. drilling. The long awaited balance between rig supply and demand has seemingly slipped away. The 1991 Reed rig census describes an industry facing several more rough years. Details of this year's census include: The available U.S. fleet now stands at 2,251 rigs, down by 69 from the 2,320-unit total in 1990, and the lowest since 1976. Rigs meeting the census definition of active numbered 1,485, down 192 (11.4%) from the 1,677 active rigs counted a year earlier.

Crowhurst, M.E.; Fitts, R.L. (Reed Tool Co., Houston, TX (US))

1991-10-01T23:59:59.000Z

4

34th annual reed rotary rig census  

SciTech Connect

This article reports that the number of rigs active according to the 1986 census is 1052, which represents a decline of 1573 rigs from 1985 figures. This 60 percent decrease is the largest decline of active rigs in the 34-year history of the census. The 1986 census takers found 3993 rigs are available with the capacity to drill deeper than 3000 ft. The count has thus declined by 416 rigs (9 percent) from the 1985 total of 4409. Rig availability declined for the fourth consecutive year following nine straight years of fleet expansion (1974-1982). During the past four years, 1651 rigs have been removed from the drilling fleet representing a 29 percent decline from the record high number of rigs available in 1982. The 1986 decline in the available U.S. fleet is considerably less than what many industry observers had been anticipating. A larger decrease in the rig fleet has not been realized for a number of reasons.

Hutchinson, D.L.; Pastusek, P.E.

1986-10-01T23:59:59.000Z

5

36th annual Reed rig census  

SciTech Connect

For the sixth straight year, the number of rigs available in the U.S. declined. Five hundred and seventy-nine rotary rigs dropped out of drilling industry competition during the past 12 months as attrition forced rig supply closer toward balance with demand. Significant highlights of this year's census are: The U.S. rig fleet now stands at 2,752 drilling rigs, a 17.4% reduction from the census count in 1987. This is the largest percentage decline and the third largest absolute decline in available rigs in census history; The 1988 census active count was 1,532 rigs, up 10% over 1987; The 1988 census utilization rate was 55.7%, up from the 41.7% reported last year and a 110% improvement over the all-time low of 26.3% in 1986; Every region in the country reported a reduction in total available rigs. Each region also reported an increase in the active ring count with the exception of Ark-La-Tex; California had the highest utilization rate in the census (63.9%), and all regions reported a utilization rate greater than 50% with the exception of Ark-La-Tex, which reported a 45.5% rate; The number of rig owners declined 12% from 691 to 608. The decline in available rigs would have been greater, but owners brought back 226 rigs that had been dropped from previous census tabulations.

Fitts, R.L.; Crowhurst, M.E. (Reed Tool Co., Houston, TX (US))

1988-10-01T23:59:59.000Z

6

42nd Annual Reed rig census  

SciTech Connect

The eleven-year trend of attrition in the US rig fleet slowed significantly this year as only 12 rigs, or less than 1%, left the available fleet. The number of rotary rigs available for drilling in the US now stands at 1,841. but for the 42-year history of the Reed Tool Co. Rotary Rig Census, the 1973 available rig count of 1,767 remains the record low for yet another year. The count of rigs active during the 45-day census period also declined since last year's census. The active count was down 4.5% to 1,221 from 1,279 in 1993. As a consequence, rig utilization fell to 66.3% in 1994, from 69.0% last year. Notably, a strong shift to gas from oil drilling has occurred. Of the 1,221 rigs active in the census period, 540 were drilling for gas on the last well vs. 356 drilling for oil. Compared to last year, this is an increase in gas drilling of 29% and a decrease in oil drilling 22%. (Rigs targeting both oil and gas totaled 325 in 1994.)

Stokes, T.A.; Rodriquez, M.R. (Reed Tool Co., Houston, TX (United States))

1994-10-01T23:59:59.000Z

7

Hoisting and Rigging  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

12-i Chapter 12 Rigging Hardware CHAPTER 12 RIGGING HARDWARE This chapter provides requirements for rigging accessories used in hoisting and rigging - shackles, eyebolts, eye nuts, links, rings, swivels, wire-rope clips, turnbuckles, rigging hooks, and load-indicating devices and implements the requirements of ANSI/ASME B30.26, "Rigging Hardware" (for latest ASME standards, see http://catalog.asme.org/home.cfm?Category=CS). 12.1 GENERAL..................................................................................................................................12-1 12.1.1 Good and Bad Rigging Practices ...................................................................................12-1 12.2 RIGGING HOOKS.....................................................................................................................12-5

8

Hoisting & Rigging Fundamentals  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hoisting and Rigging Hoisting and Rigging Fundamentals for Riaaers and ODerators Pendant Control - Components TR244C, Rev. 5 December 2002 TR244C Rev . 5 TABLE OF CONTENTS INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii HOISTING AND RIGGING OBJECTIVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 WIRE ROPE SLINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SYNTHETIC WEBBING SLINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I O CHAINSLINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 METAL MESH SLINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 SPREADER BEAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 RIGGING HARDWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9

Earth drill rig  

SciTech Connect

This patent describes an earth drill rig wherein an upwardly and downwardly moving drill-string-turning rotary table is rotated by a kelly bar connected at its lower end to a vertical drive shaft, the kelly bar being journalled for rotation in and fixed against axial movement with respect to a drill frame assembly and the rotary table being mounted for axial movement on and along the drill frame assembly. The drill frame assembly is pivotally mounted on a vehicle on a substantially horizontal axis for pivoting between an upright position and a substantially horizontal position for transportation. The improvement described here comprises the drill frame assembly pivot axis positioned below the lower end of the kelly bar and above the upper end of the vertical drive shaft, and a universal coupling connecting the lower end of the kelly bar and the vertical drive shaft the universal coupling comprising universal joints at opposite ends of an elongated slip joint connector and connected there-by for relative axial movement but driving coupling between the universal joints. The universal joints lie generally on a circle of which the drill frame assembly pivot axis is the center. The drill frame assembly can be moved between the upright and the substantially horizontal positions without disconnecting the kelly bar from the vertical drive shaft, the kelly bar being revolvable by the drive shaft through substantially the entire range of movement of the drill frame assembly.

Rassieur, C.L.

1987-01-27T23:59:59.000Z

10

Rig activity; 1989 was the worst year on record  

SciTech Connect

This article discusses the quantity of oil rotary rigs running in the United States during 1989. Rotary rigs running in 1989 averaged 870, down 7.1% from 1988 and arguably the worst performance since anyone bothered to count. A quick check into dusty historical records reveals that in 1942 the rotary rig count averaged 761 (this was the result of a deliberate government policy of scaling back drilling). However, the number is misleading, because in the early 1940s cable-tool rigs were around 40% to 45% of the total operating at any given time.

Not Available

1990-02-01T23:59:59.000Z

11

Hoisting & Rigging Assessment Form  

Energy.gov (U.S. Department of Energy (DOE))

  Assess the institutional and department/division hoisting and rigging (including forklift, overhead cranes small hoists, and mobile cranes) requirements, policies, procedures, and work practices...

12

Rig activity; 1991 is now the worst year on record  

SciTech Connect

This paper reports that U.S. rotary oil well drilling rig activity reached year-end levels above 1,100 rigs and averaged over 1,000 in 1990, the first increase since 1984. In 1991, however, operating rigs dropped once again, this time to an all time recorded low and once again, most forecasters erred on the high side. Rotary rigs running in 1991 averaged 862.8, a 14.4% drop below the 1990 activity level of 1007.8 rigs. The rig count, began at 1,068 in January, but fell steadily for the remainder of the year. A brief upturn at mid-year failed to hold up and the year-end increases in drilling we had come to expect since 1986 never materialized.

Not Available

1992-02-01T23:59:59.000Z

13

Chapter 10 - RIGGING HARDWARE  

NLE Websites -- All DOE Office Websites (Extended Search)

ASME, DOERL-92-36 and the Rigging Hardware manufacturers' requirements. It is the responsibility of the user of this manual to implement all of the requirements from listed...

14

International land rig locator  

SciTech Connect

Mechanical specifications, ratings, locations, and status are listed for each of the 5,000 contract rotary drilling rigs operated by the more than 700 independent drilling contractors throughout the Free World.

Not Available

1984-03-01T23:59:59.000Z

15

International land rig locator  

SciTech Connect

Mechanical specifications, ratings, locations, and status are listed for each of the 5,000 contract rotary drilling rigs operated by more than 700 independent drilling contractors throughout the Free World.

Not Available

1983-09-01T23:59:59.000Z

16

Hoisting and Rigging  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOE-STD-1090-2011 DOE-STD-1090-2011 September 2011 Superseding DOE-STD-1090-2007 August 2007 DOE STANDARD HOISTING AND RIGGING U.S. Department of Energy AREA SAFT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. INCH-POUND INTENTIONALLY BLANK DOE-STD-1090-2011 iii Introduction The U.S. Department of Energy (DOE) Hoisting and Rigging Standard is intended to be used by supervisors, line managers, safety personnel, equipment operators, riggers and other personnel responsible for the safety of hoisting and rigging operations at DOE sites. It may be used as either contract document or as a best practices guide at the site's or program office's discretion. The standard invokes applicable OSHA and national consensus standards but also delineates

17

Hoisting and Rigging  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

13-i CHAPTER 13 LOAD HOOKS This chapter provides safety standards for the inspection, testing, and maintenance of load hooks installed on cranes or hoists and implements the requirements of ASME B30.10, Chapter 10-1, "Hooks." See Chapter 12, "Rigging Accessories," for rigging hook requirements (for latest ASME standards, see http://catalog.asme.org/home.cfm?Category=CS). 13.1 GENERAL ...............................................................................................................................13-1 13.1.1 Marking......................................................................................................................13-1 13.1.2 Attachments ...............................................................................................................13-1

18

Design of a bicycle rig  

E-Print Network (OSTI)

A design of a bicycle (bike) rig was conducted. This bike rig is designed to be used for aerodynamics measurement testing of bicycles, cyclists and cycling related items in a wind tunnel. This paper discusses the design ...

Racz, Rastislav

2010-01-01T23:59:59.000Z

19

New depths with mobile rig  

SciTech Connect

Magee-Poole Drilling Company, a drilling contractor operating out of the south Texas drilling center of Alice, claims it operates the largest mobile drilling rig in the world. That is, it's the only wheel mounted portable rig that drills to 16,000 feet with 4 1/2-inch drill pipe - at least 3000 feet deeper than the previous mobile drilling rig ratings. The unit is designated the Ingersoll-Rand 1500 Series. What's more significant, according to co-owner Don Magee, is that the rig's portability gets the rotary table turning to the right sooner; it drills more footage per year. It rigs up in 1 1/2 days versus 3 to 4 days for a conventional skid type rig normally used at these depths. The unit's compact arrangement, with more components combined into single loads, makes possible its higher mobility. A conventional skid rig might require 25 to 30 truckloads to move the rig components, mud system, fuel and water tank, houses for utilities, storage and crew change, generators, and drill pipe. The new rig moves in anywhere from four to nine loads less. Further, the rig components weigh less without sacrificing durability.

Not Available

1982-03-01T23:59:59.000Z

20

44. Annual Reed rig census  

SciTech Connect

Reed Tool Company`s 44th annual rotary rig census found a spirit of increased optimism in the US oil and gas drilling industry. Rig utilization rose to 77% this year, the highest since the boom times of 15 years ago. A combination of a higher number of active rigs and another decline in available units to a historical low, led to this higher-than-average utilization rate. The paper discusses results from the survey.

Stokes, T.A.; Rodriguez, M.R. [Reed Tool Co., Houston, TX (United States)

1996-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

Hoisting & Rigging Assessment Plan  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HOISTING & RIGGING HOISTING & RIGGING Assessment Plan NNSA/Nevada Site Office Facility Representative Division Performance Objective: To determine that hoisting and rigging operations are conducted according to "industry best standards" for increasing equipment reliability while assuring worker safety, and to verify issues being addressed in BN Hoisting assessment. Criteria: Lifts are identified and categorized appropriately for scheduled maintenance. DOE-STD-1090-2001 An integrated process ensures safety issues are identified and controls established. DOE-STD-1090-2001 Personnel operating and maintaining the hoisting equipment are trained; they understand their roles and responsibilities. DOE-STD-1090-2001 Maintenance conducts safety inspections of hoisting and rigging

22

Hoisting & Rigging Assessment Plan  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HOISTING & RIGGING HOISTING & RIGGING Assessment Plan NNSA/Nevada Site Office Facility Representative Division Performance Objective: To determine that hoisting and rigging operations are conducted according to "industry best standards" for increasing equipment reliability while assuring worker safety, and to verify issues being addressed in BN Hoisting assessment. Criteria: Lifts are identified and categorized appropriately for scheduled maintenance. DOE-STD-1090-2001 An integrated process ensures safety issues are identified and controls established. DOE-STD-1090-2001 Personnel operating and maintaining the hoisting equipment are trained; they understand their roles and responsibilities. DOE-STD-1090-2001 Maintenance conducts safety inspections of hoisting and rigging

23

Hoisting and Rigging  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1-i 1-i CHAPTER 11 WIRE ROPE AND SLINGS This chapter provides requirements for the fabrication and use of wire rope and slings used in hoisting and rigging and implements the requirements of ASME B30.9, Slings (for latest ASME standards, see http://catalog.asme.org/home.cfm?Category=CS). . 11.1 GENERAL ...............................................................................................................................11-1 11.2 WIRE ROPE ............................................................................................................................11-4 11.2.1 Wire-Rope Lays .........................................................................................................11-4 11.2.2 Wire-Rope Cores .......................................................................................................11-4

24

Comparing rig power transmission systems  

SciTech Connect

Installed power on drilling rigs has increased steadily since the inception of rotary drilling technology as a result of technical advances and the need to penetrate deeper horizons. Higher power levels for the pumps, rotary table and drawworks are also required for drilling deep wells within an economically reasonable period. Power initially available on a rig had been about 35 kW on average, whereas power values on modern rigs drilling ultra-deep wells are on the order of several thousand kW. The installed power values on modern drilling rigs, subdivided with respect to depth range, are shown. After safety, economic factors are of paramount importance to rig operators. Among these, which include low acquisition cost, long service life and ease of maintenance, a particularly decisive factor is high efficiency.

Gutsche, W.; Noevig, T.

1989-04-01T23:59:59.000Z

25

Hoisting and Rigging  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

4 4 BELOW-THE-HOOK LIFTING DEVICES 14-i This chapter provides the requirements for below-the-hook lifting devices used in hoisting and rigging, such as spreader bars, lifting yokes, and lift fixtures. This section implements the requirements of ASME B30.20, "Below-the-Hook Lifting Devices" (for latest ASME standards, see http://catalog.asme.org/home.cfm?Category=CS). NOTE: Special lifting devices for shipping containers weighing 10,000 lb or more that are used for radioactive materials are governed by ANSI N14.6 ["Standard for Special Lifting Devices for Shipping Containers Weighing 10,000 Pounds (4,500 kg) or More for Nuclear Materials."] 14.1 GENERAL ...............................................................................................................................14-1

26

Focus on rotary drill rigs  

SciTech Connect

This article discusses the drill rig, focusing on the rotary drill rigs. There are two principal drilling methods - rotary and percussion. In certain situations, percussion drilling is the most practical method, but for most applications, rotary drilling using the rotary-tricone bit with either steel-toothed cones or carbide inserts, is the common and accepted drilling technique. There are four principal reasons for a rotary drill rig: to provide power to the rotary-tricone bit; to provide air to clean the hole; to provide a life-support system for the rotary-tricone bits; and, to provide a stable and efficient platform from which to drill the hole.

Schivley, G.P. Jr.

1987-06-01T23:59:59.000Z

27

Electricity on the rig. Part 3 - New electric rig technology  

SciTech Connect

The use of an SCR-controlled power system on an offshore drilling rig has lead to an increased acceptance of high technology equipment. Such equipment increases drilling productivity, reduces maintenance, and improves reliability. Most new rigs now have AC squirrel cage motors, brushless AC generators, silicon controlled rectifiers, DC motors, and swtichgear and motor starters. Several opportunities for cost reductions in SCR systems, such as improving the power factor, are studied in this paper.

McNair, W.L.

1983-07-01T23:59:59.000Z

28

Solar stirling engine rig tests  

Science Journals Connector (OSTI)

A description of a prototype four-cylinder Stirli ng engine construction with the heat receiver of the concentrated solar radiant flux and with a swashplate drive is given. The rig tests have been carried out ...

I. A. Tursunbaev; E. P. Orda; A. I. Lezhebokov; A. P. Korobkov…

2010-11-01T23:59:59.000Z

29

Drill rig hook  

SciTech Connect

A hook for suspending a pipe string or other load in a well rig, including a tubular outer body supported by a first connector structure which is attachable to a suspending line, a tubular inner body which supports a second connector structure preferably taking the form of a hook, with the inner body being received within the outer body and being yieldingly urged upwardly relative thereto by a resilient unit or assembly located within the inner body, and with a structure within the inner body bearing upwardly against and supporting the resilient assembly and attached to the first connector structure. A cam mechanism between the inner and outer bodies automatically cams the inner body to a predetermined rotary position upon upward movement, with a locking device or devices serving to retain the inner body in fixed rotary position and/or to lock the camming mechanism in a fixed position in a manner determining the rotary setting to which the inner body returns upon upward movement. The mentioned first and/or second connectors may each consist of two parts receivable within one of the tubular bodies and held in operative connecting engagement therewith by a spacer between the two parts. A link suporting member may be formed separately from the load suporting hook, to be detachable therefrom for a repair or replacement.

Zimmermann, A.

1985-02-12T23:59:59.000Z

30

DOE-STD-1090-2004; Hoisting and Rigging (Formerly Hoisting and Rigging Manual)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

9-2004 9-2004 12-i Chapter 12 Rigging Accessories CHAPTER 12 RIGGING ACCESSORIES This chapter provides requirements for rigging accessories used in hoisting and rigging - shackles, eyebolts, rings, wire-rope clips, turnbuckles, rigging hooks, and load-indicating devices. 12.1 GENERAL ...............................................................................................................................12-1 12.1.1 Inspections .................................................................................................................12-1 12.1.2 Testing .....................................................................................................................12-3 12.1.3 Good and Bad Rigging Practices ...............................................................................12-3

31

45th annual Reed rig census  

SciTech Connect

Since 1983, Reed Tool Co.`s annual rotary rig census has reported 14 consecutive annual reductions in the U.S. rig fleet. This year, the downward trend has reversed and more rigs have been added to the available fleet than have left. Robust drilling activity has also spurred higher rig utilization in 1997. Utilization climbed to 86.9% this year, more than ten percentage points higher than a year ago and the highest since 1981. Data and trends are discussed.

Stokes, T.A.; Rodriguez, M.R. [Reed Tool Co., Houston, TX (United States)

1997-10-01T23:59:59.000Z

32

Hoisting and Rigging Technical Advisory Committee  

Energy.gov (U.S. Department of Energy (DOE))

The Hoisting and Rigging Technical Advisory Committee serves as an advisory body to the Office of Health, Safety and Security (HSS) by providing support to their policy efforts aimed at ensuring the safe performance of hoisting and rigging activities at DOE facilities and in the review and resolution of identified generic hoisting and rigging safety issues.

33

Hoisting & Rigging Lift Plan  

NLE Websites -- All DOE Office Websites (Extended Search)

Hoisting & Rigging Lift Plan Hoisting & Rigging Lift Plan Stanford Synchrotron Radiation Laboratory May 16, 2005 SSRL-HRLP-000-R0 Page 1 of 3 General Information Lift Plan Document # Plan prepared by: Describe the load or items to be lifted: Could the load, if dropped, release hazardous materials or radioactivity? No Yes (describe) Is the load irreplaceable or would it be very costly to replace if damaged? No Yes (describe) Brief description of lift activities (specify if rolling or flipping involved) Equipment Information Equipment ID: Equipment custodian: Rated capacity: Operator capacity : Personnel Protective Equipment (PPE) Steel-toed shoes Required for all personnel involved with lift activity to protect from crushing of feet/toes

34

Risk analysis of jackup rigs  

Science Journals Connector (OSTI)

Increasing attention has been focussed in the North Sea and elsewhere on the quantification of the risks of working in a hazardous enviroment: the offshore world. The perception of risk with respect to mobile rigs has often been vague and uninformed. This paper attempts to put the risks with respect to jackup rigs into perspective by quantifying them and comparing them to other risks. This paper contains a few risk comparisons with fixed platforms, semi-submersibles, and drillships. Historical casualties are used in an example to show how a change intended to make an operation safer, may result in the opposite effect. Examining risks from losses due to environmental overload, the conclusion is reached that jackups are very safe structures: there appears to be no jackup, in the timeframe examined, that has been lost because of a deficiency in the calculation methods currently in use by knowledgeable experts.

B.P.M. Sharples; W.T. Bennett Jr; J.C. Trickey

1989-01-01T23:59:59.000Z

35

40th annual Reed rig census  

SciTech Connect

This paper reports that declines characterize the 1992 rig census-in the number of available drilling rigs, in the number of active rigs, in rig utilization rate, in the number of rig owners and in industry optimism. The number of rotary rigs available for U.S. drilling fell by 255 units (11.3%) during the past 12 months, an attrition rate almost four times greater than in 1991. But despite the high attrition, only 59.7% of remaining rigs were working during the time the census was taken. Results of the 1992 census bring emphasis to an industry trend that became apparent in early 1991. The major oil companies, and many independents, continued their exodus form the U.S., and the remaining independents, which were hurt by low natural gas prices and unfavorable tax treatment of intangible drilling costs, were not able to pick u the drilling slack. Consequently, the past year has been disastrous for many U.S. drilling contractors, and the outlook for this industry segment remains bleak.

Fitts, R.L.; Stokes, T.A. (Reed Tool Co., Houston, TX (United States))

1992-10-01T23:59:59.000Z

36

Four rigs refurbished for West Africa drilling  

SciTech Connect

In April and May 1990, Shell Petroleum Development Co. of Nigeria Ltd. awarded Noble Drilling West Africa Inc. four separate contracts to drill oil and gas wells in the inland waterways of Nigeria. The contracted rigs included a shallow water jack up, the NN-1, and three posted barges, the Gene Rosser, the Chuck Syring, and the Lewis Dugger. The jack up was built in 1978, and the three posted barges are 1980s vintage. Three of the rigs have been idle for a number of years. The Shell Nigeria contracts required major modifications to the rigs before putting them into international service. Noble replaced or refurbished all major pieces of equipment in the drilling, power, and service systems on the rigs. Rig crews serviced all other equipment. A significant amount of general service piping and electrical wiring was replaced. Each rig also required additional motor control centers to support the new drilling and mud processing equipment. Alfa-Laval waste-heat water desalination plants and new sewage treatment units were installed on all four rigs. Because of the tidal variances and high silt conditions expected in the African waterways, all engine cooling systems were converted from heat exchangers to radiators. Rotary tables were made common on all rigs at 37 1/2 in. Noble had all traveling equipment completely inspected and modified as necessary. Strict attention was paid to certification and documentation of all equipment. Safety upgrades conformed to both Shell and Noble standards. Fire and gas detection systems were installed throughout each rig. Water and foam deluge systems were installed in the wellhead areas, and new foam systems and monitors were installed on the helldecks.

Not Available

1991-06-10T23:59:59.000Z

37

Design and Analysis of a Test Rig for Modeling the Bit/Formation Interface in Petroleum Drilling Applications  

E-Print Network (OSTI)

and horizontal wells and measuring the effects of various factors on the stability of perturbations on the system. A test rig concept has been developed to accurately measure the interaction forces and torques between the bit, formation and fluids during drilling...

Wilson, Joshua Kyle

2013-04-11T23:59:59.000Z

38

DOE-STD-1090-2004; Hoisting and Rigging (Formerly Hoisting and Rigging Manual)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5 5 CONSTRUCTION HOISTING AND RIGGING EQUIPMENT REQUIREMENTS 15-i Chapter 15 Construction Hoisting and Rigging Equipment Requirements This chapter outlines the requirements for the safe use of hoisting and rigging equipment on construction projects at DOE installations. 15.1 GENERAL ...............................................................................................................................15-1 15.2 PERSONNEL QUALIFICATIONS.........................................................................................15-2 15.2.1 Qualified Operators of Mobile Cranes.......................................................................15-2 15.2.2 Qualified Operators of Forklift Trucks ......................................................................15-3

39

Group Based Rigging of Realistically Feathered Wings  

E-Print Network (OSTI)

for feather interpenetration resulting from movement from extended to folded wing poses [Hiebert 3 et al. 2006]. The rigging method developed for this thesis provides a single rig and control solution for animation that includes both outstretched... be highly detailed and as anatomically accurate as a mythical creature can be. A big challenge to this was the look and actions of the feathers [Hiebert et al. 2006]. The feathers on the gryphons (coverts, and body feathers) were generated procedurally...

Howard, Heather Vernette

2012-02-14T23:59:59.000Z

40

Electricity on the rig; part I -- electric applications on drilling and workover rigs  

SciTech Connect

This article points out that not only have electric motors replaced diesel engines and mechanical transmissions, but solid-state equipment is rapidly taking the place of rotary equipment in variable speed drivers and control systems. The SCR (silicon controlled rectifier) type of speed control has replaced other types by a large margin of acceptance on drilling rigs and has begun to be used on workover and service rigs. In most cases, electrical power is generated at the rig site with diesel-AC generators. On mechanically driven rigs, single diesel-generator sets operate to supply power for lighting and electrical motor loads. When high levels of power are required, such as on SCR-powered rigs, multiple generators are operated in electrical-parallel and each contributes to the total power required.

McNair, W.L.

1983-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

Odessa fabricator builds rig specifically for geothermal drilling  

Energy.gov (U.S. Department of Energy (DOE))

For 35 years, MD Cowan has built drilling rigs, developing a market for its Super Single® rig for use in the nation's oil and gas fields. Now the Odessa-based company is branching out into alternative energy.

42

Oil-spill aftermath hampers rig research  

Science Journals Connector (OSTI)

... Mexico, scientists say that they have been struggling to gain access to the region's rigs and drill ships, hampering their research. Marine scientists have long been allowed to install ... ships, hampering their research. Marine scientists have long been allowed to install instruments on offshore structures. The equipment can deliver vital data that would not be practical to gather ...

Melissa Gaskill

2011-07-04T23:59:59.000Z

43

DOE-STD-1090-99; DOE Standard Hoisting and Rigging (Formerly Hoisting and Rigging Manual)  

NLE Websites -- All DOE Office Websites (Extended Search)

TS TS INCH-POUND DOE-STD-1090-99 March 1999 Superseding DOE-STD-1090-96 September 1996 DOE STANDARD HOISTING AND RIGGING (Formerly Hoisting and Rigging Manual) U.S. Department of Energy AREA SAFT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. This document has been reproduced from the best available copy. Available to DOE and DOE contractors from ES&H Technical Information Services, U.S. Department of Energy, (800) 473-4375, fax: (301) 903-9823. Available to the public from the U.S. Department of Commerce, Technology Administration, National Technical Information Service, Springfield, VA 22161; (703) 605-6000. DOE STANDARD HOISTING AND RIGGING (Formerly Hoisting and Rigging Manual) Summary of Changes as of March 1999

44

DOE-STD-1090-2007; Hoisting and Rigging Standard (Formerly Hoisting and Rigging Manual)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5 5 CONSTRUCTION HOISTING AND RIGGING EQUIPMENT REQUIREMENTS 15-i This chapter outlines the requirements for the safe use of hoisting and rigging equipment on construction projects at DOE installations. 15.1 GENERAL ...............................................................................................................................15-1 15.2 PERSONNEL QUALIFICATIONS.........................................................................................15-2 15.2.1 Qualified Operators of Mobile Cranes.......................................................................15-2 15.2.2 Qualified Operators of Forklift Trucks ......................................................................15-3 15.2.3 Qualified Riggers .......................................................................................................15-4

45

DOE-STD-1090-2004; Hoisting and Rigging (Formerly Hoisting and Rigging Manual)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

3 3 LOAD HOOKS 13-i Chapter 13 Load Hooks This chapter provides safety standards for the inspection, testing, and maintenance of load hooks installed on cranes or hoists and implements the requirements of ASME B30.10, Chapter 10-1, "Hooks." See Chapter 12, "Rigging Accessories," for rigging hook requirements. 13.1 GENERAL ...............................................................................................................................13-1 13.1.1 Marking......................................................................................................................13-1 13.1.2 Attachments ...............................................................................................................13-1

46

La Belle: rigging in the days of the spritsail topmast, a reconstruction of a seventeenth-century ship's rig  

E-Print Network (OSTI)

LA BELLE: RIGGING IN THE DAYS OF THE SPRITSAIL TOPMAST, A RECONSTRUCTION OF A SEVENTEENTH-CENTURY SHIP’S RIG A Thesis by CATHARINE LEIGH INBODY CORDER Submitted to the Office of Graduate Studies of Texas A&M University... in partial fulfillment of the requirements for the degree of MASTER OF ARTS December 2007 Major Subject: Anthropology LA BELLE: RIGGING IN THE DAYS OF THE SPRITSAIL TOPMAST, A RECONSTRUCTION OF A SEVENTEENTH-CENTURY SHIP’S RIG A...

Corder, Catharine Leigh Inbody

2008-10-10T23:59:59.000Z

47

La Belle: Rigging in the days of the spritsail topmast, a reconstruction of a seventeenth-century ship's rig  

E-Print Network (OSTI)

La Belle’s rigging assemblage has provided a rare and valuable source of knowledge of 17th-century rigging in general and in particular, French and small-ship rigging characteristics. With over 400 individual items including nearly 160 wood and iron...

Corder, Catharine Leigh Inbody

2009-05-15T23:59:59.000Z

48

Rigs to reefs: a petroleum industry perspective  

E-Print Network (OSTI)

, by implementing an ocean dumping program in conjunction with a rigs-to-reefs program, and through the development of new technology and methods to reduce transportation costs. Zn addition, the overall cost to industry participation can be reduced through... Environmental Enhancement and Fishing in the Seas (REEFS)" Task Force. This task force was comprised of representatives of federal and state government agencies, the oil and ocean industries, and the commercial and recreational fishing communities. Secretary...

Dubose, William Perry

1988-01-01T23:59:59.000Z

49

Open Rigging Through XML: Character Setup Utilizing Metadata and Node Based Editing  

E-Print Network (OSTI)

Manager. . . . . 22 7 The Rig Manager interface for an empty scene. . . . . . . . . . . . . . 23 8 The Rig Manager interface and “Rig Edit Mode” label on the viewport after clicking the “Create Rig” button. . . . . . . . . . . . . . . . . . . 24 9 The Rig... and replace them with code that performs the desired actions. For example, the node-based interface can be used to replace the task of authoring rig 6 definition files in a text editor so that the user never needs to learn the rig definition format. 7 3...

Kelly, Logan Scott

2014-02-19T23:59:59.000Z

50

Surveillance Guide - CPS 8.1 Hoisting and Rigging  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HOISTING AND RIGGING HOISTING AND RIGGING 1.0 Objective The objective of this surveillance is to examine hoisting and rigging operations to ensure that safe equipment and work practices are being used. The surveillance includes verification that hoisting and rigging work is performed in accordance with DOE requirements and best practices. 2.0 References 2.1 DOE O 440.1A, Worker Protection Management For Doe Federal And Contractor Employees 2.2 DOE-RL-92-36, Hanford Site Hoisting and Rigging Manual NOTE The DOE Hoisting and Rigging Manual should be used as the primary reference for this surveillance. 1 3.0 Requirements Implemented This surveillance is conducted to implement the RL Functions, Responsibilities, and Authorities Manual (FRAM) item No. 2504. 4.0 Surveillance Activities

51

MHK Technologies/Ocean Energy Rig | Open Energy Information  

Open Energy Info (EERE)

Rig Rig < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Ocean Energy Rig.jpg Technology Profile Primary Organization Free Flow 69 Technology Resource Click here Current Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 4 Proof of Concept Technology Description The Ocean Energy Rig is a hybrid concept harnessing tidal stream with increased velocity from venturi system wave and wind power The rig also uses solar panels to power computers and warning lights Other unique features include a water ballasting system with automatic self levelling and wave ramps to maximize FreeFlow 69 s new wave power device It is envisaged that the Ocean Energy Rig would be assembled and maintained in dry docks and would be towed out into position before being semi submerged and anchored for operation Power output of the production model would be at least 10MW

52

Field Demonstraton of Existing Microhole Coiled Tubing Rig (MCTR) Technology  

SciTech Connect

The performance of an advanced Microhole Coiled Tubing Rig (MCTR) has been measured in the field during the drilling of 25 test wells in the Niobrara formation of Western Kansas and Eastern Colorado. The coiled tubing (CT) rig designed, built and operated by Advanced Drilling Technologies (ADT), was documented in its performance by GTI staff in the course of drilling wells ranging in depth from 500 to nearly 3,000 feet. Access to well sites in the Niobrara for documenting CT rig performance was provided by Rosewood Resources of Arlington, VA. The ADT CT rig was selected for field performance evaluation because it is one of the most advanced commercial CT rig designs that demonstrate a high degree of process integration and ease of set-up and operation. Employing an information collection protocol, data was collected from the ADT CT rig during 25 drilling events that encompassed a wide range of depths and drilling conditions in the Niobrara. Information collected included time-function data, selected parametric information indicating CT rig operational conditions, staffing levels, and field observations of the CT rig in each phase of operation, from rig up to rig down. The data obtained in this field evaluation indicates that the ADT CT rig exhibited excellent performance in the drilling and completion of more than 25 wells in the Niobrara under varied drilling depths and formation conditions. In the majority of the 25 project well drilling events, ROP values ranged between 300 and 620 feet per hour. For all but the lowest 2 wells, ROP values averaged approximately 400 feet per hour, representing an excellent drilling capability. Most wells of depths between 500 and 2,000 feet were drilled at a total functional rig time of less than 16 hours; for wells as deep at 2,500 to 3,000 feet, the total rig time for the CT unit is usually well under one day. About 40-55 percent of the functional rig time is divided evenly between drilling and casing/cementing. The balance of time is divided among the remaining four functions of rig up/rig down, logging, lay down bottomhole assembly, and pick up bottomhole assembly. Observations made during all phases of CT rig operation at each of the project well installations have verified a number of characteristics of the technology that represent advantages that can produce significant savings of 25-35 percent per well. Attributes of the CT rig performance include: (1) Excellent hole quality with hole deviation amounting to 1-2 degrees; (2) Reduced need for auxiliary equipment; (3) Efficient rig mobilization requiring only four trailers; (4) Capability of ''Zero Discharge'' operation; (5) Improved safety; and, (6) Measurement while drilling capability. In addition, commercial cost data indicates that the CT rig reduces drilling costs by 25 to 35% compared to conventional drilling technology. Widespread commercial use of the Microhole Coiled Tubing technology in the United States for onshore Lower-48 drilling has the potential of achieving substantially positive impacts in terms of savings to the industry and resource expansion. Successfully commercialized Microhole CT Rig Technology is projected to achieve cumulative savings in Lower-48 onshore drilling expenditures of approximately 6.8 billion dollars by 2025. The reduced cost of CT microhole drilling is projected to enable the development of gas resources that would not have been economic with conventional methods. Because of the reduced cost of drilling achieved with CT rig technology, it is estimated that an additional 22 Tcf of gas resource will become economic to develop. In the future, the Microhole Coiled Tubing Rig represents an important platform for the continued improvement of drilling that draws on a new generation of various technologies to achieve goals of improved drilling cost and reduced impact to the environment.

Kent Perry; Samih Batarseh; Sheriff Gowelly; Thomas Hayes

2006-05-09T23:59:59.000Z

53

C:\Documents and Settings\jhr\My Documents\C_drive\RIGS\users 2013\rigs_usersApril2013.vp  

Gasoline and Diesel Fuel Update (EIA)

23 23 Reserves Information Gathering System (RIGS) User's Guide Version 2013 For Report Year 2012 Energy Information Administration U.S. Department of Energy April 2013 Form EIA-23 Reserves Information Gathering System (RIGS) User's Guide April 2013 EIA-23 Reserves Information Gathering System (RIGS) User's Guide Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Hardware / Software Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Installing the RIGS Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Installation Error Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Using the EIA-23 Reserves Information Gathering System (RIGS) System . . . . . . . . . . . . . . . . . 4 Initial Data Import from Last Year's RIGS Submission File. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 The RIGS Main Menu Screen.

54

Development of a portable grain mass flow sensor test rig  

Science Journals Connector (OSTI)

A portable grain mass flow sensor test rig was built to measure the accuracy of a mass flow sensor with dual use in the field as well as in the lab. Concurrently, a synchronization method was developed that employs GPS timing data to synchronize the ... Keywords: Mass flow sensor, Test rig, Yield monitor accuracy, Yield monitor error

M. Loghavi; R. Ehsani; R. Reeder

2008-05-01T23:59:59.000Z

55

HURRICANE PREDICTION, OIL RIGS, AND INSURANCE: KATRINA, RITA, AND BEYOND  

E-Print Network (OSTI)

on meteorological and oceanographic design specifications for offshore structures such as oil rigs. Dr. Forristall spent over 30 years as an offshore research engineer and advisor for Shell Oil, both nationallyHURRICANE PREDICTION, OIL RIGS, AND INSURANCE: KATRINA, RITA, AND BEYOND LUNCHEON BRIEFING

56

CRAD, Hoisting & Rigging Assessment Plan | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hoisting & Rigging Assessment Plan Hoisting & Rigging Assessment Plan CRAD, Hoisting & Rigging Assessment Plan Performance Objective: To determine that hoisting and rigging operations are conducted according to "industry best standards" for increasing equipment reliability while assuring worker safety, and to verify issues being addressed in BN Hoisting assessment. Criteria: Lifts are identified and categorized appropriately for scheduled maintenance. DOE-STD-1090-2001 An integrated process ensures safety issues are identified and controls established. DOE-STD-1090-2001 Personnel operating and maintaining the hoisting equipment are trained; they understand their roles and responsibilities. DOE-STD-1090-2001 Maintenance conducts safety inspections of hoisting and rigging equipment on a scheduled basis, certifying that safe operations are in

57

Advanced Hot Section Materials and Coatings Test Rig  

SciTech Connect

Phase I of the Hyperbaric Advanced Hot Section Materials & Coating Test Rig Program has been successfully completed. Florida Turbine Technologies has designed and planned the implementation of a laboratory rig capable of simulating the hot gas path conditions of coal gas fired industrial gas turbine engines. Potential uses of this rig include investigations into environmental attack of turbine materials and coatings exposed to syngas, erosion, and thermal-mechanical fatigue. The principle activities during Phase 1 of this project included providing several conceptual designs for the test section, evaluating various syngas-fueled rig combustor concepts, comparing the various test section concepts and then selecting a configuration for detail design. Conceptual definition and requirements of auxiliary systems and facilities were also prepared. Implementation planning also progressed, with schedules prepared and future project milestones defined. The results of these tasks continue to show rig feasibility, both technically and economically.

Dan Davis

2006-09-30T23:59:59.000Z

58

Hoisting & Rigging ISMS Assessment Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Objective: Assess the institutional and department/division hoisting and Objective: Assess the institutional and department/division hoisting and rigging (including forklift, overhead cranes small hoists, and mobile cranes) requirements, policies, procedures, and work practices for both professional and incidental activities. Review the roles and responsibilities of line managers, support personnel and workers who are involved in these activities as well as the adequacy of compliance with institutional and/or Department/Division qualifications, training requirements, and inspection requirements. Assess the laboratory's process for understanding the causes and development of effective corrective actions for incidents/accidents. Review the roles and responsibilities of line managers, support personnel and workers who are involved in the

59

Hoisting & Rigging ISMS Assessment Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Objective: Assess the institutional and department/division hoisting and Objective: Assess the institutional and department/division hoisting and rigging (including forklift, overhead cranes small hoists, and mobile cranes) requirements, policies, procedures, and work practices for both professional and incidental activities. Review the roles and responsibilities of line managers, support personnel and workers who are involved in these activities as well as the adequacy of compliance with institutional and/or Department/Division qualifications, training requirements, and inspection requirements. Assess the laboratory's process for understanding the causes and development of effective corrective actions for incidents/accidents. Review the roles and responsibilities of line managers, support personnel and workers who are involved in the

60

DOE-STD-1090-2007; Hoisting and Rigging Standard (Formerly Hoisting and Rigging Manual)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5 5 HOSTILE ENVIRONMENTS 5-i Chapter 5 Hostile Environments This chapter describes provisions for hoisting and rigging operations in hostile work environments. 5.1 GENERAL ................................................................................................................................5-1 5.2 HOSTILE ENVIRONMENT PLAN ......................................................................................5-2 5.2.1 Marking and Posting ....................................................................................................5-2 5.2.2 Inspection and Testing .................................................................................................5-2 EXHIBIT I Hostile Environment Plan ............................................................................................5-3

Note: This page contains sample records for the topic "horizontal rig count" 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

DOE-STD-1090-2004; Hoisting and Rigging (Formerly Hoisting and Rigging Manual)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

11-i Chapter 11 11-i Chapter 11 Wire Rope and Slings CHAPTER 11 WIRE ROPE AND SLINGS This chapter provides requirements for the fabrication and use of wire rope and slings used in hoisting and rigging. 11.1 GENERAL ...............................................................................................................................11-1 11.2 WIRE ROPE ............................................................................................................................11-4 11.2.1 Wire-Rope Lays.........................................................................................................11-4 11.2.2 Wire-Rope Cores .......................................................................................................11-4 11.2.3 Wire Rope for General Purposes

62

DOE-STD-1090-2004; Hoisting and Rigging (Formerly Hoisting and Rigging Manual)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5 5 HOSTILE ENVIRONMENTS 5-i Chapter 5 Hostile Environments This chapter describes provisions for hoisting and rigging operations in hostile work environments. 5.1 GENERAL................................................................................................................................5-1 5.2 HOSTILE ENVIRONMENT PLAN ......................................................................................5-2 5.2.1 Marking and Posting ....................................................................................................5-2 5.2.2 Inspection and Testing .................................................................................................5-2 EXHIBIT I Hostile Environment Plan ............................................................................................5-3

63

EIA-23L Reserves Information Gathering System (RIGS)  

Gasoline and Diesel Fuel Update (EIA)

EIA-23L Reserves Information Gathering System (RIGS) EIA-23L Reserves Information Gathering System (RIGS) Released: April 16, 2013 Background The Form EIA-23L, "Annual Survey of Domestic Oil and Gas Reserves, " is used to collect data on reserves of crude oil, natural gas, and natural gas liquids. These data are used to develop national and regional estimates of proved reserves of domestic crude oil, natural gas, and natural gas liquids, and to facilitate national energy policy decisions. Reporting on the Form EIA-23L is mandatory. Reserves Information Gathering System The Form EIA-23L Reserves Information Gathering System (RIGS), provides respondents with an efficient and effective means for filing the form using a personal computer (PC). Hardware / Software Requirements The minimum hardware requirements needed to install and use RIGS are:

64

Hoisting & Rigging Assessment Form | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hoisting & Rigging Assessment Form Hoisting & Rigging Assessment Form Hoisting & Rigging Assessment Form Assess the institutional and department/division hoisting and rigging (including forklift, overhead cranes small hoists, and mobile cranes) requirements, policies, procedures, and work practices for both professional and incidental activities. Review the roles and responsibilities of line managers, support personnel and workers who are involved in these activities as well as the adequacy of compliance with institutional and/or Department/Division qualifications, training requirements, and inspection requirements. Assess the laboratory's process for understanding the causes and development of effective corrective actions for incidents/accidents. Review the roles and responsibilities of line managers, support personnel and workers who are

65

HOISTING & RIGGING Assessment Plan--NNSA/Nevada Site Office Facility...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

on a scheduled basis, certifying that safe operations are in compliance with good conduct of operations. DOE-STD-1090-2001 HoistingRiggingPlan.doc More Documents &...

66

Odessa fabricator builds rig specifically for geothermal drilling...  

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

in the nation's oil and gas fields. Now the Odessa-based company is branching out into alternative energy. The company recently delivered its first Thermal Single rig, a...

67

Basic Rigging Workbook Training and Qualifications Program Office  

E-Print Network (OSTI)

. This instructor handbook incorporates the Subject Area's requirements, as well as information from the Department of Energy's (DOE's) Hoisting and Rigging Manual and ANSI B30.9. Definitions Asymmetrical load. An object

Ohta, Shigemi

68

Rotating head for rotary drilling rigs  

SciTech Connect

A rotating head is claimed for a rotary drilling rig which is to be secured to the top of a well pipe having an inner rotating portion with an opening therethrough which permits passage of drill pipe, pipe joints, and Kelly tools; the rotating portion has an annular drive rubber formed integrally with the top portion thereof. A rotating head drive bushing having an opening with a cross-sectional shape generally conforming to the cross-section of the Kelly tool to permit only sliding motion therebetween is provided with helical external ridges which produce a disengagable gripping action with the opening in the drive rubber at the top of the rotating portion of the rotating head. The rotating portion has a conventional stripper rubber at the bottom thereof and is mounted with a double roller bearing to provide low friction motion with respect to the fixed portion of the head. The double roller bearing is lubricated with a viscous lubricating material and paddles are provided between the sets of rollers of the double roller bearing for distributing the viscous lubricating material and in particular propel it onto the upper set of bearings; the upper body portion of the rotating head is readily detachable from the lower sleeve portion which is normally welded to the well conductor pipe.

Adams, J.R.

1983-09-27T23:59:59.000Z

69

DOE-STD-1090-2004; Hoisting and Rigging (Formerly Hoisting and Rigging Manual)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

APPENDIX A PROCUREMENT GUIDELINES A-1 Appendix A Procurement Guidelines This appendix provides reference guidance in preparing purchase requisitions for hoisting and rigging materials and equipment. Nationally recognized standards and specifications are referenced for listed items. However, caution should be used prior to procurement of special items in order to verify appropriate specification or standard reference and requirements. Some specific requirements listed in this appendix are more restrictive than consensus standard requirements, but are recommended to ensure materials of adequate quality and workmanship are provided. Quality receipt inspections should be provided for all received materials in order to verify compliance of all

70

DOE-STD-1090-2007; Hoisting and Rigging Standard (Formerly Hoisting and Rigging Manual)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

APPENDIX A APPENDIX A PROCUREMENT GUIDELINES A-i Appendix A Procurement Guidelines This appendix provides reference guidance in preparing purchase requisitions for hoisting and rigging materials and equipment. Nationally recognized standards and specifications are referenced for listed items. However, caution should be used prior to procurement of special items in order to verify appropriate specification or standard reference and requirements. Some specific requirements listed in this appendix are more restrictive than consensus standard requirements, but are recommended to ensure materials of adequate quality and workmanship are provided. Quality receipt inspections should be provided for all received materials in order to verify compliance of all

71

DOE-STD-1090-2004; Hoisting and Rigging (Formerly Hoisting and Rigging Manual)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

TERMINOLOGY AND DEFINITIONS 1-1 Chapter 1 Terminology and Definitions The following are specialized terms commonly used when discussing hoisting and rigging operations. Many may not be used in this standard, but are included for general information. The terms are arranged in alphabetical order. Illustrations are included for clarity. ABRASION: Surface wear. ACCELERATION STRESS: Additional stress imposed due to increasing load velocity. ALTERNATE LAY: Lay of wire rope in which the strands are alternately regular and lang lay. ANSI: American National Standards Institute. APPOINTED: Assigned specific responsibilities by the employer or the employer's representative. AREA, METALLIC: Sum of the cross- sectional areas of individual wires in a wire rope

72

DOE-STD-1090-2007; Hoisting and Rigging Standard (Formerly Hoisting and Rigging Manual)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

TERMINOLOGY AND DEFINITIONS 1-1 Chapter 1 Terminology and Definitions The following are specialized terms commonly used when discussing hoisting and rigging operations. Many may not be used in this standard, but are included for general information. The terms are arranged in alphabetical order. Illustrations are included for clarity. ABRASION: Surface wear. ACCELERATION STRESS: Additional stress imposed due to increasing load velocity. ALTERNATE LAY: Lay of wire rope in which the strands are alternately regular and lang lay. ANSI: American National Standards Institute. APPOINTED: Assigned specific responsibilities by the employer or the employer's representative. AREA, METALLIC: Sum of the cross- sectional areas of individual wires in a wire rope

73

Counting Bacteria  

NLE Websites -- All DOE Office Websites (Extended Search)

Counting Bacteria Counting Bacteria Name: Tammy Location: N/A Country: N/A Date: N/A Question: I am working with my daughter on her Science Fair Project. We are testing daily items that we come in contact with to see how many germs and bacteria it has. How can we differentiate between the types of bacteria? How can we decide which one has the most? We are using the growth medium Agar in petri dishes. Where can I find more scientific info as to why this happens so we can write up the project? Replies: These are complex questions. First, the agar medium is used as a solid phase so that one can see colonies formed. These are round mounds of growth because bacteria multiply in all directions, but they cannot normally move in or on a solid phase so they remain at the site of multiplication. Every bacterial cell can multiply into a colony. Thus, the number of colonies is a measure for the number of cells present, if you have taken quantitative samples. If you want to quantitate, you should try to standardize your samples (for example, use 1 ml liquid to wash surfaces, food particles, 1 ml of liquids, etc. and add of this one drop (with a micropipette would be more accurate) per agar plate and let the drop form a tear on the plate. The number of colonies that grow in this tear are a measure for the original number of bacteria present in the drop, because each colony is derived from a single bacterial cell.

74

The Feasibility of Natural Gas as a Fuel Source for Modern Land-Based Drilling Rigs  

E-Print Network (OSTI)

rigs are still in use today, most modern drilling rigs are electrically powered. Electric drilling rig engines are coupled to electric generators, in what is called a generator set, or genset, which creates electricity that powers electric motors... drilling rigs can be categorized into either direct current (DC) or alternating current (AC), depending on the type of electricity the rig generators produce. Electric motors power the draw-works, top drive, mud pumps, and other systems with electricity...

Nunn, Andrew Howard

2012-02-14T23:59:59.000Z

75

Human rigHts advocacy in action  

E-Print Network (OSTI)

in memoriam 26 2 nonesuch//Autumn 2011 Greencoat 80 Silk is carbon balanced ­ where the carbon intensity has purchased. Carbon balancing by the World Land Trust tackles climate change through projects that both offset 18 Brave new world 22 thought that counts 27 In pictures snapshots 5 taken 29 Regulars Bristol

Bristol, University of

76

DOE-STD-1090-2004; Hoisting and Rigging (Formerly Hoisting and Rigging Manual)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

4 4 BELOW-THE-HOOK LIFTING DEVICES 14-i Chapter 14 Below-the-Hook Lifting Devices This chapter provides the requirements for below-the-hook lifting devices used in hoisting and rigging, such as spreader bars, lifting yokes, and lift fixtures. This section implements the requirements of ASME B30.20, "Below-the-Hook Lifting Devices." NOTE: Special lifting devices for shipping containers weighing 10,000 lb or more that are used for radioactive materials may be governed by ANSI N14.6 ["Standard for Special Lifting Devices for Shipping Containers Weighing 10,000 Pounds (4,500 kg) or More for Nuclear Materials."] 14.1 GENERAL ...............................................................................................................................14-1

77

Workover well control. Part 3. Conventional rigs, snubbing units handle a variety of workover jobs  

SciTech Connect

The conventional rig, the most widely used rig for workovers, performs several common functions: tripping in and out of the hole, rotating the work string, and circulating fluid. Its primary component groups are the derrick, hoisting systems, rotary tools, circulating systems, and tubular goods. Rig sizing depends on the job requirements; the typical workover rig is a small-capacity, single unit used for concentric work. A workover rig's most important feature is its portability; compartmentalizing the rig permits transporting it offshore in packages smaller than 8000 lb and allows small cranes to replace derrick barges for loading operations.

Adams, N.

1981-08-31T23:59:59.000Z

78

Professional development of new rig supervisors a must  

SciTech Connect

This paper reports that because the number of drilling personnel has dropped dramatically over the last decade, many operators now face a shortage of competent rig supervisors. To be effective, the rig supervisor must develop a knowledge of drilling operations, apply optimization techniques to improve drilling performance, demand safe work practices, and protect the environment. Petroleum engineering degree programs and industry training programs can teach the rig supervisor specific technical and management skills; however, traditionally, the supervisor trainee shadows an experienced company man to learn how to direct a drilling operation. The success of this method depends not only on the skills and learning capabilities of the trainee but also on the trainer's time, motivation, knowledge, and ability to teach the skills necessary to direct drilling activities.

Nordt, D.P. (Marathon Oil Co., Houston, TX (United States)); Stone, M.S. (Marathon Oil Co., Bridgeport, IL (United States))

1992-10-26T23:59:59.000Z

79

Natural Gas for the Long Haul (Big Rigs Go Green)  

NLE Websites -- All DOE Office Websites (Extended Search)

the Long Haul (Big Rigs Go Green) the Long Haul (Big Rigs Go Green) JOHN DAVIS: No one has been hit harder by rising fuel prices than America's long-haul commercial truckers. A big rig can easily burn 20,000 gallons of fuel a year, and with diesel prices projected to keep rising, this not only pinches the trucker's bottom line, but that extra cost is passed on to American consumers. Meanwhile, natural gas prices have remained stable and are forecast to stay that way for years to come. Up to now, demand for natural gas as a transportation fuel has been mostly for compressed natural gas used by light and medium-duty vehicles. City buses, refuse haulers, utilities, and

80

Inventory management of steel plates at an oil rig construction company .  

E-Print Network (OSTI)

??Keppel Fels produces make-to-order oil exploration rigs for the global market. Each rig requires close to 6000 metric tons of steel in the course of… (more)

Tan, Chien Yung

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

Inventory management of steel plates at an oil rig construction company  

E-Print Network (OSTI)

Keppel Fels produces make-to-order oil exploration rigs for the global market. Each rig requires close to 6000 metric tons of steel in the course of its production. Optimal management of this steel is very critical in this ...

Tan, Chien Yung

2006-01-01T23:59:59.000Z

82

Horizontal Plate Plate  

NLE Websites -- All DOE Office Websites (Extended Search)

Horizontal Plate Plate Horizontal Plate Plate Metadata also available as Metadata: Identification_Information Data_Quality_Information Spatial_Data_Organization_Information Spatial_Reference_Information Entity_and_Attribute_Information Distribution_Information Metadata_Reference_Information Identification_Information: Citation: Citation_Information: Originator: Ray George Publication_Date: Unknown Title: Horizontal Plate Plate Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: Description: Abstract: Monthly and annual average solar resource potential for the lower 48 states Purpose: Provide information on the solar resource potential for the lower 48

83

Horizontal well IPR calculations  

SciTech Connect

This paper presents the calculation of near-wellbore skin and non-Darcy flow coefficient for horizontal wells based on whether the well is drilled in an underbalanced or overbalanced condition, whether the well is completed openhole, with a slotted liner, or cased, and on the number of shots per foot and phasing for cased wells. The inclusion of mechanical skin and the non-Darcy flow coefficient in previously published horizontal well equations is presented and a comparison between these equations is given. In addition, both analytical and numerical solutions for horizontal wells with skin and non-Darcy flow are presented for comparison.

Thomas, L.K.; Todd, B.J.; Evans, C.E.; Pierson, R.G.

1996-12-31T23:59:59.000Z

84

ARM - Measurement - Horizontal wind  

NLE Websites -- All DOE Office Websites (Extended Search)

govMeasurementsHorizontal wind govMeasurementsHorizontal wind ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Horizontal wind The horizontal wind in terms of either speed and direction, or the zonal (u) and meridional (v) components. Categories Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments SONDE : Balloon-Borne Sounding System CO2FLX : Carbon Dioxide Flux Measurement Systems ECOR : Eddy Correlation Flux Measurement System DISDROMETER : Impact Disdrometer

85

Doubts swirl around plan to use rigs as reefs  

Science Journals Connector (OSTI)

... Offshore oil platforms could be allowed to remain in place as artificial habitats for marine life ... oil stops flowing, and to leave the sites as they found them. But the Rigs to Reefs Act of 2003, which is sponsored by Representative David Vitter (Republican, ...

Betsy Mason

2003-10-30T23:59:59.000Z

86

Ministers block disposal of oil rigs at sea  

Science Journals Connector (OSTI)

... ministers last week ended three years of public controversy about the fate of disused oil rigs in the northeast Atlantic ocean. They decided that most will have to be dismantled ... all environmentalist groups. Oil companies, on the other hand, were disappointed. The UK Offshore Operators Association said the decision to outlaw deep-sea disposal of oil and gas ...

Ehsan Masood

1998-07-30T23:59:59.000Z

87

Hoisting and Rigging: Lift Planning and Control for Ordinary Lifts  

E-Print Network (OSTI)

operator Follow specific instructions/procedures for attachment of the rigging gear to the load. Use. Repeat as necessary until the load is evenly balanced. Follow "Conduct of Operator" requirements2 Stop at the work site and follow the plan Assign a designated leader Ensure all personnel involved in the lift

Wechsler, Risa H.

88

Mixed Stream Test Rig Winter FY-2011 Report  

SciTech Connect

This report describes the data and analysis of the initial testing campaign of the Mixed Stream Test Rig (MISTER) at Idaho National Laboratory (INL). It describes the test specimen selection, physical configuration of the test equipment, operations methodology, and data and analysis of specimens exposed in two environments designed to represent those expected for high temperature steam electrolysis (HTSE).

Chalres Park; Tedd Lister; Kevin DeWall

2011-04-01T23:59:59.000Z

89

Planning and scheduling a fleet of rigs using simulation-optimization  

Science Journals Connector (OSTI)

Some of the most important and expensive activities in the oil field development and production phases relate to using rigs. These can be used for drilling wells, or for maintenance activities. As rigs are usually scarce compared to the number of wells ... Keywords: Planning, Rigs, Scheduling, Simulation-optimization

Hugo ViníCius Bassi; VirgíLio Jose Martins Ferreira Filho; Laura Bahiense

2012-12-01T23:59:59.000Z

90

Horizontal Advanced Tensiometer  

DOE Patents (OSTI)

An horizontal advanced tensiometer is described that allows the monitoring of the water pressure of soil positions, particularly beneath objects or materials that inhibit the use of previous monitoring wells. The tensiometer includes a porous cup, a pressure transducer (with an attached gasket device), an adaptive chamber, at least one outer guide tube which allows access to the desired horizontal position, a transducer wire, a data logger and preferably an inner guide tube and a specialized joint which provides pressure on the inner guide tube to maintain the seal between the gasket of the transducer and the adaptive chamber.

Hubbell, Joel M.; Sisson, James B.

2004-06-22T23:59:59.000Z

91

Department of Energy Supercomputer Helps Design More Efficient Big Rigs |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Department of Energy Supercomputer Helps Design More Efficient Big Department of Energy Supercomputer Helps Design More Efficient Big Rigs Department of Energy Supercomputer Helps Design More Efficient Big Rigs February 8, 2011 - 12:00am Addthis Washington, DC - BMI Corporation, a company in South Carolina, in partnership with the Department of Energy's Oak Ridge National Laboratory (ORNL) has successfully developed a technology that will make semi trucks more fuel efficient with the potential to save millions of gallons of fuel. Utilizing the nation's most powerful computer, BMI Corp designed a SmartTruck UnderTray System, a set of integrated aerodynamic fairings that improve the aerodynamics of 18-wheeler (Class 8) long-haul trucks. If all 1.3 million Class 8 trucks in the U.S. were configured with these components, companies could achieve annual savings of 1.5 billion gallons

92

Rotary torque and rpm indicator for oil well drilling rigs  

SciTech Connect

Monitoring the torque applied by the rotary table to the drill string and the rpm of the drill string is provided. An intermediate adapter is positioned between the drill kelly and the rotary table. A strain gauge is attached to the intermediate adapter to measure torsional deformation and provide an indication of rotary torque. Transmission of torque data is accomplished by radio frequency transmission utilizing a transmitter on the intermediate adapter. A receiver is mounted to the side of the drill rig floor to receive and demodulate the torque signal. The intermediate adapter is rotating at the same rate as the drill string. Detection of the revolutions utilizing the changing R.F. Field strength is accomplished at the edge of the drill rig platform or elsewhere with a stationary sensor which doubles as the torque receiver. A highly directional torque transmitter antenna mounted on the adapter is used with the major lobe lying parallel to the rig floor and perpendicular to the pipe. By detecting the envelope of the radio frequency field strength, each rotation is marked by a peak. This enables continuous torque and rpm monitoring.

Chien, L.C.

1981-08-25T23:59:59.000Z

93

An energy-saving oil drilling rig for recovering potential energy and decreasing motor power  

Science Journals Connector (OSTI)

An energy-saving oil drilling rig is researched. A large accumulator is adopted in this rig to store the energy of the motor during the auxiliary time of lifting the drill stem and the potential energy of the drill stem when lowered. The equipped power of this rig decreases remarkably compared with the conventional drilling rig, and this rig can also recover and reuse the potential energy of the drill stem. Therefore, this rig owns remarkable energy-saving effect compared with the conventional drilling rig, and the energy-saving effect of the energy-saving oil drilling rig is also verified by the field tests. The mathematical model of the energy-saving oil drilling rig lowering the drill stem was derived and simulation analysis was conducted. Through simulation the curves of the drill stem lowering velocity and lowering displacement with time were obtained, and some conclusions were reached: (1) the heavier the drill stem lowered, the higher the lowering velocity is, and the shorter the lowering time is; (2) the smaller the displacement of the variable pump-motor, the higher the lowering velocity is, and the shorter the lowering time is.

Lujun Zhang

2011-01-01T23:59:59.000Z

94

CPS 8.1 Hoisting and Rigging, 2/25/2000  

Energy.gov (U.S. Department of Energy (DOE))

The objective of this surveillance is to examine hoisting and rigging operations to ensure that safe equipment and work practices are being used.  The surveillance includes verification that...

95

HOISTING & RIGGING Assessment Plan--NNSA/Nevada Site Office Facility Representative Division  

Energy.gov (U.S. Department of Energy (DOE))

:  To determine that hoisting and rigging operations areconducted according to “industry best standards” for increasing equipment reliabilitywhile assuring worker safety, and to verify issues being...

96

,,,,,"Rig: TOI Discoverer Enterprise"  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Well: OCS-G 32306 002 ST00BP00",,,,"Flow Data" Well: OCS-G 32306 002 ST00BP00",,,,"Flow Data" ,,,,,"Field: Mississippi Canyon 252" ,,,,,"Rig: TOI Discoverer Enterprise" ,,,,,"Choke Manifold",,,,"Rates",,,,,,,,,"Ratio" "Date","Time","Choke A","Choke B","BSW","WHPres","WHTemp","WHDCP","WHDCTemp","Gas Rate","Gas Cum","Uncorrected ","Uncorrected ","Water Rate","Water Cum","Uncorrected ","Uncorrected ","Cumulative Oil ","GOR1","Comments" ,,,,,,,,,,,"Oil Rate","Oil Cum ",,,"Liquid Rate","Liquid Cum","from Cargo "

97

Technical and economic evaluation of selected compact drill rigs for drilling 10,000 foot geothermal production wells  

SciTech Connect

This report summarizes the investigation and evaluation of several {open_quotes}compact{close_quotes} drill rigs which could be used for drilling geothermal production wells. Use of these smaller rigs would save money by reducing mobilization costs, fuel consumption, crew sizes, and environmental impact. Advantages and disadvantages of currently-manufactured rigs are identified, and desirable characteristics for the {open_quotes}ideal{close_quotes} compact rig are defined. The report includes a detailed cost estimate of a specific rig, and an evaluation of the cost/benefit ratio of using this rig. Industry contacts for further information are given.

Huttrer, G.W. [Geothermal Management Company, Inc., Frisco, CO (United States)

1997-11-01T23:59:59.000Z

98

Planning and scheduling a fleet of rigs using simulation–optimization  

Science Journals Connector (OSTI)

Some of the most important and expensive activities in the oil field development and production phases relate to using rigs. These can be used for drilling wells, or for maintenance activities. As rigs are usually scarce compared to the number of wells requiring service, a schedule of wells to be drilled or repaired must be devised. The objective is to minimize opportunity costs within certain operating constraints. This paper present the first stochastic approach to deals with the problem of planning and scheduling a fleet of offshore oil rigs, where the service time is assumed being uncertain. A simulation–optimization method is used to generate “expected solutions” and performance measures for rigs, as well as statistics about well allocation to rigs. The methodology can be used in two different ways – to schedule an existing fleet of rigs or to scale the size of the fleet – both contemplating the uncertain nature of the problem. The method’s expected results include performance measures for each rig, expected delay for a well to be served, the expected schedule of rigs, and a distribution of the well servicing order. The experiments based on real situations demonstrate the effectiveness of the simulation–optimization approach.

Hugo Vinícius Bassi; Virgílio Jose Martins Ferreira Filho; Laura Bahiense

2012-01-01T23:59:59.000Z

99

Structural Basis of Viral RNA Recognition by RIG-I-Like Receptors  

E-Print Network (OSTI)

binding surface also abolished RIG-I signaling in cells. In order to compare the RIG-I/RNA interactions with other RLRs, we also determined the dsRNA binding surface of MDA5 CTD by NMR titration studies. MDA5 CTD has a similar binding surface...

Lu, Cheng

2012-10-19T23:59:59.000Z

100

Numerical and experimental determination of neutron characteristics in irradiation rigs operated in LVR-15 research reactor  

Science Journals Connector (OSTI)

......standard single-cell CHOUCA rigs or...dedicated multi-cell rigs. The temperature...reflector and in fuel will be provided...dedicated to material degradation evaluation. IRRADIATION...evaluation of material degradation induced by radiation...averaged over cell) has to be modified...reflects actual fuel burnup distribution......

Michal Koleska; Ladislav Viererbl; Zdena Lahodova; Jaroslav Ernest; Jelena Zmitkova; Milan Marek

2014-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

Safety First Safety Last Safety Always Inspect rigging equipment for material handling before use  

E-Print Network (OSTI)

Safety First Safety Last Safety Always Inspect rigging equipment for material handling before use. Rigging Equipment for Material Handling Safety Tip #19 At your job or at the plate, you can't get home on the reverse side of this safety tip sheet. Please refrain from reading the information verbatim

Minnesota, University of

102

The design of a test rig for the identification of dynamic coefficients of a high temperature magnetic bearing  

E-Print Network (OSTI)

This thesis is a report on the research and Micrographics. development to design a test rig for the identification of the dynamic coefficients of a radial magnetic bearing. The test rig development is intended for dynamic coefficient observation...

Rahtika, I Putu Gede Sopan

1998-01-01T23:59:59.000Z

103

New ultra-deepwater rig with dual rotaries will reduce costs  

SciTech Connect

The Discoverer Enterprise, a next generation, ultra-deepwater drill ship with a dual rotary system, will decrease drilling and completion costs by reducing bottom hole assembly (BHA) and tubular preparation time. Transocean Offshore received a contract from Amoco Corp. to build the ultra-deep floating rig and is scheduled to spud its first well in July 1998. It will generally work in water deeper than 6,000 ft. The rig design involves a new approach that addresses the overall well-construction process and equipment required to decrease significantly deepwater drilling time. The Discoverer is the first ultra-deepwater rig designed specifically for handling subsea completions and extended well tests. The paper discusses increased deepwater rig demand, rig construction costs, drillship design, well construction, development drilling, and cost justification.

Cole, J.C.; Herrmann, R.P.; Scott, R.J. [Transocean Offshore Inc., Houston, TX (United States); Shaughnessy, J.M. [Amoco Corp., Houston, TX (United States)

1997-05-26T23:59:59.000Z

104

Job Counting Guidelines  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Environmental Management Environmental Management Definitions and Guidelines for Counting Monthly and Quarterly EM Recovery Act Full Time Equivalents (FTEs) and Cumulative Head-Count The following updated definitions and guidelines are intended to provide EM Recovery Act sites with information to collect and report timely and accurate full-time equivalent and cumulative head-count data for both monthly and quarterly jobs data calls. These revised guidelines supersede the previous monthly jobs data reporting definitions and guidelines dated February 9, 2010. These revised guidelines remain consistent with OMB guidance issued December 18, 2009 and cover subcontractors and vendors as well as prime

105

Selectively fired, tubing-conveyed perforating guns save rig time  

SciTech Connect

Selective firing of tubing-conveyed perforating (TCP) guns during drill stem tests (DSTs) added flexibility and saved costs for Marathon Oil Co. As an example, in the Garland field in Wyoming, the guns allowed perforating multiple zones in one trip. This saved 1 1/2--2 days/well in rig time and $25,000--30,000/well in electric wire line and DST tool charges. For international offshore operations, savings of $200,000/well appear possible. Savings result not only from perforating multiple zones, but also from arbitrarily setting firing patterns with or without zone isolation. The paper describes the testing of equipment, the design of the guns, firing heads, crossover assembly, pressure isolation sub, control line, and select-fire sub, and applications for the guns.

Snider, P.M. (Marathon Oil Co., Houston, TX (United States)); Bond, P.L. (Halliburton Energy Services, Dallas, TX (United States))

1993-07-19T23:59:59.000Z

106

HOISTING & RIGGING Assessment Plan--NNSA/Nevada Site Office Facility  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HOISTING & RIGGING Assessment Plan--NNSA/Nevada Site Office HOISTING & RIGGING Assessment Plan--NNSA/Nevada Site Office Facility Representative Division HOISTING & RIGGING Assessment Plan--NNSA/Nevada Site Office Facility Representative Division : To determine that hoisting and rigging operations are conducted according to "industry best standards" for increasing equipment reliability while assuring worker safety, and to verify issues being addressed in BN Hoisting assessment. Criteria: Lifts are identified and categorized appropriately for scheduled maintenance. DOE-STD-1090-2001 An integrated process ensures safety issues are identified and controls established. DOE-STD-1090-2001 Personnel operating and maintaining the hoisting equipment are trained; they understand their roles and responsibilities. DOE-STD-1090-2001

107

Motor Drives of Modern Drilling and Servicing Rigs for Oil and Gas Wells  

Science Journals Connector (OSTI)

This paper provides a synthetic view on the most recent achievements in the field of drilling and servicing rig drives for oil and gas wells. This field is featuring ... kilowatts and speeds of 150–250 rpm for drilling

Aurelian Iamandei; Gheorghe Miloiu

2013-01-01T23:59:59.000Z

108

E-Print Network 3.0 - advanced seal rig Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

2 3 4 5 > >> Page: << < 1 2 3 4 5 > >> 41 Heat Transfer Research, 2010, Vol. 41, No. 6 Turbine Aero-Heat Transfer Studies Summary: , rotating turbine research rigs, realistic gas...

109

Analytical and experimental investigations of a labyrinth seal test rig and damper seals for turbomachinery  

E-Print Network (OSTI)

. The test rig is also used during the development of a unique damper seal device. The experimental data used to determine the direct damping coefficient of the damper seal device are presented. Results of vibration and pressure measurements that demonstrate...

Shultz, Richard Raymond

1997-01-01T23:59:59.000Z

110

Pressure analysis for horizontal wells  

SciTech Connect

This paper presents horizontal-well test design and interpretation methods. Analytical solutions are developed that can be handled easily by a desktop computer to carry out design as well as interpretation with semilog and log-log analysis. These analytical solutions point out the distinctive behavior of horizontal wells: (1) at early time, there is a circular radial flow in a vertical plane perpendicular to the well, and (2) at late time, there is a horizontal pseudoradial flow. Each type of flow is associated with a semilog straight line to which semilog analysis has to be adapted. The horizontal pseudoradial flow takes into account a pseudoskin depending on system geometry, which is a priori defined and estimated. Practical time criteria are proposed to determine the beginning and the end of each type of flow and to provide a guide to semilog analysis and well test design. The authors study the behavior of uniform-flux or infinite-conductivity horizontal wells, with wellbore storage and skin. The homogeneous reservoir is infinite or limited by impermeable or constant-pressure boundaries. A method is also outlined to transform all our solutions for homogeneous reservoirs into corresponding solutions for double-porosity reservoirs.

Davlau, F.; Mouronval, G.; Bourdarot, G.; Curutchet, P.

1988-12-01T23:59:59.000Z

111

Horizontal interest in industrial purchasing  

Science Journals Connector (OSTI)

Markets are becoming very complex and dynamic and in such an environment, firms can no longer merely focus their attention on key relationships in their downstream and upstream markets, but instead need to constantly monitor and make sense of the market around them. One area within these markets, that has been rather neglected within the current purchasing research are the other buyers in the market. The purpose of the present study is to examine the forms of horizontal interest in purchasing. The paper aims to answer the question: What are the forms of horizontal interest and how can these be incorporated into the functions of industrial purchasing? The paper applies theoretical knowledge and reports on an empirical case study conducted to address the question. As a result, a two-dimensional typology of the forms of horizontal interest and implications for industrial purchasing are presented.

Pauliina Ulkuniemi

2012-01-01T23:59:59.000Z

112

Nuclear component horizontal seismic restraint  

DOE Patents (OSTI)

A nuclear component horizontal seismic restraint. Small gaps limit horizontal displacement of components during a seismic occurrence and therefore reduce dynamic loadings on the free lower end. The reactor vessel and reactor guard vessel use thicker section roll-forged rings welded between the vessel straight shell sections and the bottom hemispherical head sections. The inside of the reactor guard vessel ring forging contains local vertical dovetail slots and upper ledge pockets to mount and retain field fitted and installed blocks. As an option, the horizontal displacement of the reactor vessel core support cone can be limited by including shop fitted/installed local blocks in opposing alignment with the reactor vessel forged ring. Beams embedded in the wall of the reactor building protrude into apertures in the thermal insulation shell adjacent the reactor guard vessel ring and have motion limit blocks attached thereto to provide to a predetermined clearance between the blocks and reactor guard vessel ring.

Snyder, Glenn J. (Lynchburg, VA)

1988-01-01T23:59:59.000Z

113

Diverter/bop system and method for a bottom supported offshore drilling rig  

SciTech Connect

This patent describes a system adapted for alternative use as a diverter or a blowout preventer for a bottom supported drilling rig and adapted for positioning beneath a rotary table of the drilling rig, the system comprising: a fluid flow controller having a controller housing with a lower opening and an upper opening and a vertical flow path therebetween and an outlet passage provided in its housing wall, and at least two bases. A method is described for installing a system adapted for alternative connection as a diverter or a blowout preventer for a bottom supported drilling rig positioned beneath a rotary table of the drilling rig after structural casing has been set in a borehole. The method comprises: positioning a first telescoping spool having a lower end and an upper end below the rotary table, the first spool having a first base disposed at its upper end, the first base having a port disposed in its wall; aligning a fluid flow controller having a controller housing wall outlet passage and adapted for alternative use as a diverter or a blowout preventer so that the controller is substantially vertically aligned between a bore of the rotary table above and the structural casing below; and securing the fluid flow controller beneath the drilling rig rotary table.

Roche, J.R.; Alexander, G.G.

1987-03-03T23:59:59.000Z

114

Mode localization results and laboratory demonstration techniques with a multi-pendulum rig  

E-Print Network (OSTI)

. Perturbed system mode shapes, analytical, for R' = 0. 015. 16 Table III. Perturbed system mode shapes, analytical, for R' = 0. 04 (K, = 0. 908 N-m/rad, 1, = 0, 532 m). 17 Table IV. Perturbed system mode shapes, analytical, for R' = 0. 15 (K, = 3. 90 N.... Pendulum rig schematic Figure 2. Detail of pendulum rig. Figure 3. Graphical depiction of mode shapes given in Table I. 10 Figure 4. Depiction of perturbed mode shapes given in Table's II, III, and IV for: (a) Rs=0. 015; (b) R =0. 04; and (c) R =0. 15...

Bollich, Robert Kenneth Gerard

1992-01-01T23:59:59.000Z

115

global horizontal | OpenEI  

Open Energy Info (EERE)

87 87 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142278787 Varnish cache server global horizontal Dataset Summary Description (Abstract): Documentation of the satellite-based high resolution solar resource assessment for Ghana provided by DLR. The high resolution solar data (10kmx10km) provide country maps of the annual and monthly sums of hourly global horizontal and direct normal irradiance (GHI and DNI) for the year 2000, 2001 and 2002. Additionally, for selected sites hourly values of GHI and DNI are provided.The Documentation gives an overview about the used input data and used methodology, shows example maps and describes a comparison with ground data (if provided by the country)

116

Rigging a horse and rider: simulating the predictable and repetitive movement of the rider  

E-Print Network (OSTI)

setup. If an animation piece is only going to have a few shots with a horse and rider, then the trouble of setting up an automated character rig is not practical, but if there are a significant amount of shots with a horse and rider galloping across...

Kuhnel, Jennifer Lynn

2004-09-30T23:59:59.000Z

117

AbstractThe red snapper (Lutjanus campechanus) is currently under rig  

E-Print Network (OSTI)

653 Abstract­The red snapper (Lutjanus campechanus) is currently under rig orous federal and state of annuli in otolith thin sections have been used to age many species of fish, including red snapper. However, the utility of this method for aging red snapper has been questioned by those who dispute both

118

Department of Mechanical Engineering Fall 2009 Air Products-Entrained Particle Flow Test Rig  

E-Print Network (OSTI)

PENNSTATE Department of Mechanical Engineering Fall 2009 Air Products-Entrained Particle Flow Test are causing catalyst plugging. Objectives Air Products requested that a test rig be constructed to entrain the hydrogen reforming facilities and aid Air Products in understanding the plugging problem. Approach

Demirel, Melik C.

119

A Built for Purpose Micro-Hole Coiled Tubing Rig (MCTR)  

SciTech Connect

This report will serve as the final report on the work performed from the contract period October 2005 thru April 2007. The project 'A Built for Purpose Microhole Coiled Tubing Rig (MCTR)' purpose was to upgrade an existing state-of-the-art Coiled Tubing Drilling Rig to a Microhole Coiled Tubing Rig (MCTR) capable of meeting the specifications and tasks of the Department of Energy. The individual tasks outlined to meet the Department of Energy's specifications are: (1) Concept and development of lubricator and tool deployment system; (2) Concept and development of process control and data acquisition; (3) Concept and development of safety and efficiency improvements; and (4) Final unit integration and testing. The end result of the MCTR upgrade has produced a unit capable of meeting the following requirements: (1) Capable of handling 1-inch through 2-3/8-inch coiled tubing (Currently dressed for 2-3/8-inch coiled tubing and capable of running up to 3-1/2-inch coiled tubing); (2) Capable of drilling and casing surface, intermediate, production and liner hole intervals; (3) Capable of drilling with coiled tubing and has all controls and installation piping for a top drive; (4) Rig is capable of running 7-5/8-inch range 2 casing; and (5) Capable of drilling 5,000 ft true vertical depth (TVD) and 6,000 ft true measured depth (TMD).

Bart Patton

2007-09-30T23:59:59.000Z

120

Hydraulic fracturing slurry transport in horizontal pipes  

SciTech Connect

Horizontal-well activity has increased throughout the industry in the past few years. To design a successful hydraulic fracturing treatment for horizontal wells, accurate information on the transport properties of slurry in horizontal pipe is required. Limited information exists that can be used to estimate critical deposition and resuspension velocities when proppants are transported in horizontal wells with non-Newtonian fracturing gels. This paper presents a study of transport properties of various hydraulic fracturing slurries in horizontal pipes. Flow data are gathered in three transparent horizontal pipes with different diameters. Linear and crosslinked fracturing gels were studied, and the effects of variables--e.g., pipe size; polymer-gelling-agent concentration; fluid rheological properties; crosslinking effects; proppant size, density, and concentrations; fluid density; and slurry pump rate--on critical deposition and resuspension velocities were investigated. Also, equations to estimate the critical deposition and resuspension velocities of fracturing gels are provided.

Shah, S.N.; Lord, D.L. (Halliburton Services (US))

1990-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

A performance correlation of horizontal solar heaters  

E-Print Network (OSTI)

The solar heaters are shown tn Figure VI, page 31 30 Figure VI Horizontal Solar Heaters ~GLAZING AND FRAME ~~ POLYETHYLENE HEATERS THERMAL IN S U LA T I N 8 CELLS THERMOCOUPLES HORIZONTAL TABLE TOP THERMOCOUPLES COPPER LEADS TO CONTROL... The solar heaters are shown tn Figure VI, page 31 30 Figure VI Horizontal Solar Heaters ~GLAZING AND FRAME ~~ POLYETHYLENE HEATERS THERMAL IN S U LA T I N 8 CELLS THERMOCOUPLES HORIZONTAL TABLE TOP THERMOCOUPLES COPPER LEADS TO CONTROL...

Gopffarth, Wilford Hugo

2012-06-07T23:59:59.000Z

122

A HORIZONTAL SAMPLERFOR COLLECTION OF WATER ...  

Science Journals Connector (OSTI)

Kemmrrcr, and Frautschy bottles (Car. 1962). Although ... oxygen content of water collected with the Nan-. Frc. 1. Horizontal .... Power is transmitted from a 6-v.

1999-12-26T23:59:59.000Z

123

Rigging skeletal perissodactyl and artiodactyl ungulate limbs using analytic inverse kinematic-based solutions for a feature film production environment  

E-Print Network (OSTI)

The goal of this thesis is to develop and construct a repeatable, scalable, and portable rigging solution for the skeletal limbs of ungulates, maximizing functionality while streamlining intuitive interface controls for a feature film production...

Telford, William Lawrence, Jr

2007-04-25T23:59:59.000Z

124

A test rig for the identification of rotordynamic coefficients of fluid film bearings  

E-Print Network (OSTI)

. The test bearing articles were considered for cryogenic applications where the actual lubrication medium is liquid hydrogen or liquid oxygen. The parameter identification method used an advanced pseudo-random forcing excitation and a technique based...A TEST RIG FOR THE IDENTIFICATION OF ROTORDYNAMIC COEFFICIENTS OF FLUID FILM BEARINGS A Thesis LEWIS MILLER ROBISON III Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

Robison, Lewis Miller

1995-01-01T23:59:59.000Z

125

Large scale test rig for flow visualization and leakage measurement of labyrinth seals  

E-Print Network (OSTI)

number. Heffner (1959) measured the leakage rates of air through stationary true size labyrinth seals with the goal of predicting leakage rates for new seal designs through correlation charts developed from his investigation. Leakage resistance... geometries and land surfaces with the objective of obtaining optimized seal design criteria. The test rig utilized a flat two-dimensional stationary seal with a radial clearance-to-width ratio of approximately 100:1 to reduce wall end effects. Air...

Broussard, Daniel Harold

2012-06-07T23:59:59.000Z

126

Diverter bop system and method for a bottom supported offshore drilling rig  

SciTech Connect

A system and method for installing a fluid flow controller and telescoping spools beneath an offshore bottom supported drilling rig rotary table is disclosed. Upper and lower telescoping spools are provided for initially connecting a Diverter/BOP convertible fluid flow controller between structural casing in the well and a permanent housing beneath the drilling rig rotary table. Clamp means are provided for clamping the rig vent line to an opening in the housing wall of the fluid flow controller during drilling of the borehole through the structural casing in preparation for setting and cementing the conductor casing. In that mode, the system is adapted as a diverter system. After the well is drilled for the conductor casing and the conductor casing is cemented and cut off at its top, a mandrel is fitted at the top of the conductor casing to which the lower end of the lower spool may be connected. The system may be used in this configuration as a diverter system, or after removal of the vent line and connection of a kill line to the housing outlet, the system may be used as a low pressure blowout preventer system.

Roche, J. R.; Alexander, G. G.; Carbaugh, W. L.

1985-06-25T23:59:59.000Z

127

Standardization of 241Am by digital coincidence counting, liquid scintillation counting and defined solid angle counting  

E-Print Network (OSTI)

The nuclide 241Am decays by alpha emission to 237Np. Most of the decays (84.6 %) populate the excited level of 237Np with energy of 59.54 keV. Digital Coincidence Counting was applied to standardize a solution of 241Am by alpha-gamma coincidence counting with efficiency extrapolation. Electronic discrimination was implemented with a pressurized proportional counter and the results were compared with two other independent techniques: Liquid Scintillation Counting using the logical sum of double coincidences in a TDCR array and Defined Solid Angle Counting taking into account activity inhomogeneity in the active deposit. The results show consistency between the three methods within a limit of a 0.3%. An ampoule of this solution will be sent to the International Reference System (SIR) during 2009. Uncertainties were analysed and compared in detail for the three applied methods.

C. Balpardo; M. E. Capoulat; D. Rodrigues; P. Arenillas

2010-05-10T23:59:59.000Z

128

Performance of hydraulic fracturing and matrix acidizing in horizontal wellbores -- Offshore Qatar  

SciTech Connect

Considerable debate in the Middle East has centered upon what was previously felt to be two separate methods of enhancing revenues and daily production; hydraulic fracturing and horizontal drilling. In an effort to maximize return on investment, these two issues have been successfully combined in other areas of the world. In order to establish the suitability of this technology in this area, two horizontal wells with over 3,050m (10,000ft) of lateral section were drilled into the Cretaceous Kharaib formation, overlying the North Field, Offshore Qatar. A massive stimulation program was performed in order to evaluate the most feasible stimulation method from both a technical and economical perspective for further field development considerations.Three propped hydraulic fracturing treatments were performed using 183, 500kg (403, 700lb) of 20/40 mesh sand, and seventeen acid matrix treatments placing over 3,217,250l (850,000gals) of HCL into the lateral sections of both wells. This paper describes the performance, operation and logistical support required to complete this offshore operation with join a minimal time frame. The use of a mobile offshore jack-up platform, whereby a land based fracturing spread was placed onto the deck of a converted drilling rig is described.

Edwards, M.G.R.; Pongratz, R.

1995-11-01T23:59:59.000Z

129

global horizontal irradiance | OpenEI  

Open Energy Info (EERE)

horizontal irradiance horizontal irradiance Dataset Summary Description (Abstract): Global Horizontal IrradianceNASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Jan 2008)22-year Monthly & Annual Average (July 1983 - June 2005) Parameter: Insolation Incident On A Horizontal Surface (kWh/m^2/day) Internet: http://eosweb.larc.nasa.gov/sse/ Note 1: SSE Methodology & Accuracy sections online Note 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; Source U.S. National Aeronautics and Space Administration (NASA), Surface meteorology and Solar Energy (SSE) Date Released March 31st, 2009 (5 years ago) Date Updated April 01st, 2009 (5 years ago) Keywords GHI GIS global horizontal irradiance NASA solar

130

Hanford whole body counting manual  

SciTech Connect

This document describes the Hanford Whole Body Counting Program as it is administered by Pacific Northwest Laboratory (PNL) in support of the US Department of Energy--Richland Operations Office (DOE-RL) and its Hanford contractors. Program services include providing in vivo measurements of internally deposited radioactivity in Hanford employees (or visitors). Specific chapters of this manual deal with the following subjects: program operational charter, authority, administration, and practices, including interpreting applicable DOE Orders, regulations, and guidance into criteria for in vivo measurement frequency, etc., for the plant-wide whole body counting services; state-of-the-art facilities and equipment used to provide the best in vivo measurement results possible for the approximately 11,000 measurements made annually; procedures for performing the various in vivo measurements at the Whole Body Counter (WBC) and related facilities including whole body counts; operation and maintenance of counting equipment, quality assurance provisions of the program, WBC data processing functions, statistical aspects of in vivo measurements, and whole body counting records and associated guidance documents. 16 refs., 48 figs., 22 tabs.

Palmer, H.E.; Rieksts, G.A.; Lynch, T.P.

1990-06-01T23:59:59.000Z

131

Bakken shale typifies horizontal drilling success  

SciTech Connect

Given the favorable production response that has been obtained from horizontal drilling in vertical- fractured reservoirs such as the Bakken shale and, more recently, the Austin chalk, industry interest in this technology has mushroomed in the U.S. Indeed, it is difficult to find a good-sized oil company these days that is not involved in a horizontal drilling project or is giving it serious consideration. In response to growing evidence of successful field applications, the realization is dawning on the investment community that horizontal drilling represents a significant technological development with positive implications for both the exploration and production business, and the oilfield services industry.

Leibman, P.R. (Petrie Parkman and Co., Denver, CO (US))

1990-12-01T23:59:59.000Z

132

Counting Bitangents with Stable Maps  

E-Print Network (OSTI)

This paper is an elementary introduction to the theory of moduli spaces of curves and maps. As an application to enumerative geometry, we show how to count the number of bitangent lines to a projective plane curve of degree $d$ by doing intersection theory on moduli spaces.

David Ayala; Renzo Cavalieri

2005-12-22T23:59:59.000Z

133

Neutron Bombardment of Counting Diamonds  

Science Journals Connector (OSTI)

21 February 1956 research-article Neutron Bombardment of Counting Diamonds A. H...Examination was also made of the effect of neutron bombardment on pulse-height distribution...additional charge traps produced by the neutrons. The layered crystal texture disclosed...

1956-01-01T23:59:59.000Z

134

Factors influencing the incidence rates of injuries and accidents among seafarers and rig workers providing support to the WA offshore oil and gas industry.  

E-Print Network (OSTI)

??The aim of this study was to identify, discuss and make recommendations regarding causal factors associated with injuries and accidents among seafarers and rig workers… (more)

Martinovich, Tony, Dr

2013-01-01T23:59:59.000Z

135

Continuous injection of an inert gas through a drill rig for drilling into potentially hazardous areas  

SciTech Connect

A drill rig for drilling in potentially hazardous areas includes a drill having conventional features such as a frame, a gear motor, gear box, and a drive. A hollow rotating shaft projects through the drive and frame. An auger, connected to the shaft is provided with a multiplicity of holes. An inert gas is supplied to the hollow shaft and directed from the rotating shaft to the holes in the auger. The inert gas flows down the hollow shaft, and then down the hollow auger, and out through the holes in the bottom of the auger into the potentially hazardous area.

McCormick, S.H.; Pigott, W.R.

1998-04-01T23:59:59.000Z

136

Horizontal gene transfer in Bacteroides fragilis   

E-Print Network (OSTI)

Horizontal gene transfer (HGT) is one of the man driving forces of evolution in prokaryotes, and can also promote within-strain variation of bacterial species. The genomes of three previously sequenced Bacteroides fragilis ...

Jobling, Kelly Louise

2014-11-27T23:59:59.000Z

137

Natural Gas - U.S. Energy Information Administration (EIA) - U.S. Energy  

Gasoline and Diesel Fuel Update (EIA)

30, 2012 | Release Date: May 31, 30, 2012 | Release Date: May 31, 2012 | Next Release: June 7, 2012 Previous Issues Week: 12/29/2013 (View Archive) JUMP TO: In The News | Overview | Prices/Demand/Supply | Storage In the News: Natural Gas Rigs Decline in Key Areas Active natural gas rotary rigs currently total 594, according to the latest weekly data released by Baker Hughes Incorporated. According to Baker Hughes data, natural gas-directed horizontal rigs have driven the decline in total natural gas rigs over the past several months. Horizontal-directed natural gas rig counts have fallen to 411, from levels in the low-600s a year ago. Declines have occurred in key areas of dry shale gas production, particularly in Louisiana, where the Haynesville Shale is located. The number of horizontal natural gas rigs drilling in Louisiana has fallen from

138

Finger-Count & Radial-Stroke Shortcuts  

E-Print Network (OSTI)

Finger-Count & Radial-Stroke Shortcuts: Two Techniques for Augmenting Linear Menus on Multi-finger Interaction techniques ·Principles ·Finger-Counting ·Radial-Stroke 5 #12;Finger-Counting ·Express a pair;Radial-Stroke Shortcuts ·Principle ·Radial-stroke · Marking menus [Kurtenbach 91] · Multi-Stroke menus

Bailly, Gilles

139

Two-phase flow in horizontal wells  

SciTech Connect

Flow in horizontal wells and two-phase flow interaction with the reservoir were investigated experimentally and theoretically. Two-phase flow behavior has been recognized as one of the most important problems in production engineering. The authors designed and constructed a new test facility suitable for acquiring data on the relationship between pressure drop and liquid holdup along the well and fluid influx from the reservoir. For the theoretical work, an initial model was proposed to describe the flow behavior in a horizontal well configuration. The model uses the inflow-performance-relationship (IPR) approach and empirical correlations or mechanistic models for wellbore hydraulics. Although good agreement was found between the model and experimental data, a new IPR apart from the extension of Darcy`s law must be investigated extensively to aid in the proper design of horizontal wells.

Ihara, Masaru [Japan National Oil Corp., Chiba (Japan); Yanai, Koji [Nippon Kokan Corp., Yokohama (Japan); Yanai, Koji

1995-11-01T23:59:59.000Z

140

Discussion of productivity of a horizontal well  

SciTech Connect

The authors of this paper has been using several of the analytical equations and numerical simulation to evaluate the productivity of horizontal wells that have near-wellbore damage. Through this evaluation, the author found that here are inconsistencies in the way the skin factor is introduced into the analytical equations. This discussion shows the corrections needed in various analytical equations to obtain consistency with numerical simulation. In the numerical simulation shown here, skin factor is simulated by assignment of a reduced permeability to nodes near the well. The author would appreciate any comments Babu and Odeh could make on this aspect of horizontal wells.

Gilman, J.R. (Marathon Oil Company (US))

1991-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

Counting Rises, Levels and Drops in Compositions 1 Counting Rises, Levels and  

E-Print Network (OSTI)

Counting Rises, Levels and Drops in Compositions 1 Counting Rises, Levels and Drops in Compositions Mansour Department of Mathematics, Haifa University, Israel #12;Counting Rises, Levels and Drops;Counting Rises, Levels and Drops in Compositions 3 Definitions · A composition = 12 . . . m of n N

Heubach, Silvia

142

Department of Mechanical Engineering Spring 2010 Kenya Water Well Drill Rig Redesign of Engine Drive Train System & Support Tower  

E-Print Network (OSTI)

of Engine Drive Train System & Support Tower Overview The team was presented with the task of redesigning the engine drive train system and support structure for a water drill rig to be used in Kenya. The original engine drive train system was fabricated by a professional machinist and had many intricate components

Demirel, Melik C.

143

Tables in Context: Integrating Horizontal Displays with  

E-Print Network (OSTI)

design challenges for tabletop interfaces: integrating access to public and private information, managing a cooperative gesture to organize digital documents on an interactive table. Our tabletop interface designTables in Context: Integrating Horizontal Displays with Ubicomp Environments Abstract Our work

Klemmer, Scott

144

Wayne field: A horizontal drilling case study  

SciTech Connect

Beginning in the spring of 1994, studies of Wayne field located on the northeastern flank of the Williston Basin were initiated to determine the feasibility of using horizontal drilling to increase recoverable reserves in the field. The Wayne subinterval is one of several shoaling-upwards cycles within the Mission Canyon Formation of the Mississippian Madison Group. The reservoir pay averages 24% porosity, 100 millidarcys permeability, and 50% water saturation. Vertical wells, since field discovery in 1957, typically IP for 70 bopd and 20% water with a rapid decline within a few months to 10 bopd and 90% water. This type of well performance is characteristic of severe water coning for which horizontal development can help to minimize. In late 1994 and early 1995 the Ballantyne Hedges No.7H and GeoResources O. Fossum No.H1 were drilled. The wells recorded IP`s of 280 bopd/5 bwpd and 390 bopd/80 bwpd respectively. After six months of production both wells stabilized at approximately 110 bopd with a 35% water cut. Projections indicate that each horizontal well will recover 250,000 bbls of oil as compared to 115,000 bbls for an average vertical well and will do so in half the time. These early results provide a significant improvement over the vertical production and would seem to be reducing water coning. Three more horizontal wells are planned for the fourth quarter of 1995.

Jennings, J.B. [GeoResources, Inc., Williston, ND (United States); Johnson, R.P. [Harris, Brown, & Kiemer, Inc., Bismarck, ND (United States)

1996-06-01T23:59:59.000Z

145

Flow mapping for an ESS horizontal target  

SciTech Connect

In the target of the European spallation neutron source (ESS), the beam line is horizontal and the mercury is fully forced by a pump in a parallel channel geometry. The top front of the assembly is a hemicylindrical wall, where the beam enters and is thus called a window. The main body is partitioned by a horizontal separation plate into the upper and the lower flow channels. The target liquid flows in the lower channel to the window region, turns there, and flows out in the upper channel. A thermal-hydraulic study is under way to investigate the general behavior of the flow in this configuration. The present experimental work is the first step of an effort to validate computer codes. The model used in this investigation is two-dimensional and uses water.

Takeda, Y.; Kikura, H.; Taishi, T. [Paul Scherrer Institute, Villigen (Switzerland)

1997-12-01T23:59:59.000Z

146

Economic viability of multiple-lateral horizontal wells  

E-Print Network (OSTI)

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

Smith, Christopher Jason

2012-06-07T23:59:59.000Z

147

Sidewall containment of liquid metal with horizontal alternating magnetic fields  

DOE Patents (OSTI)

An apparatus is disclosed for confining molten metal with a horizontal alternating magnetic field. In particular, this invention employs a magnet that can produce a horizontal alternating magnetic field to confine a molten metal at the edges of parallel horizontal rollers as a solid metal sheet is cast by counter-rotation of the rollers. 19 figs.

Praeg, W.F.

1995-01-31T23:59:59.000Z

148

Colours, luminosity functions and counts of galaxies  

Science Journals Connector (OSTI)

......estimate the LF at large redshifts, a way to pro- 1996 RAS, MNRAS 283, 865-872 Colours, LFs and counts ofgalaxies 871 ceed is by carefully evaluating the present-day LF in order to infer from it, and from the observed counts, its evolution as a......

P. Saracco; G. Chincarini; A. Iovino

1996-12-01T23:59:59.000Z

149

Job Counting Guidelines | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Mission » Recovery Act » Job Counting Guidelines Mission » Recovery Act » Job Counting Guidelines Job Counting Guidelines The following updated definitions and guidelines are intended to provide EM Recovery Act sites with information to collect and report timely and accurate full-time equivalent and cumulative head-count data for both monthly and quarterly jobs data calls. These revised guidelines supersede the previous monthly jobs data reporting definitions and guidelines dated February 9, 2010. These revised guidelines remain consistent with OMB guidance issued December 18, 2009 and cover subcontractors and vendors as well as prime contractors. Job Counting Guidelines More Documents & Publications EA-1548: Finding of No Significant Impact Microsoft Word - Horizon Wind Energy Comments.docx Proceedings of the Computational Needs for the Next Generation Electric

150

Condensation in horizontal heat exchanger tubes  

SciTech Connect

Many innovative reactor concepts for Generation III nuclear power plants use passive safety equipment for residual heat removal. These systems use two phase natural circulation. Heat transfer to the coolant results in a density difference providing the driving head for the required mass flow. By balancing the pressure drop the system finds its operational mode. Therefore the systems depend on a strong link between heat transfer and pressure drop determining the mass flow through the system. In order to be able to analyze these kind of systems with the help of state of the art computer codes the implemented numerical models for heat transfer, pressure drop or two phase flow structure must be able to predict the system performance in a wide parameter range. Goal of the program is to optimize the numerical models and therefore the performance of computer codes analyzing passive systems. Within the project the heat transfer capacity of a heat exchanger tube will be investigated. Therefore the tube will be equipped with detectors, both temperature and pressure, in several directions perpendicular to the tube axis to be able to resolve the angular heat transfer. In parallel the flow structure of a two phase flow inside and along the tube will be detected with the help of x-ray tomography. The water cooling outside of the tube will be realized by forced convection. It will be possible to combine the flow structure measurement with an angular resolved heat transfer for a wide parameter range. The test rig is set up at the TOPLFOW facility at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), so that it will be possible to vary the pressure between 5 and 70 bar. The steam mass content will be varied between 0 and 100 percent. The results will be compared to the large scaled Emergency Condenser Tests performed at the INKA test facility in Karlstein (Germany). The paper will explain the test setup and the status of the project will be presented. (authors)

Leyer, S.; Zacharias, T.; Maisberger, F.; Lamm, M. [AREVA NP GmbH, Paul-Gossen-Strasse 100, Erlangen, 91052 (Germany); Vallee, C.; Beyer, M.; Hampel, U. [Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, Dresden, 01328 (Germany)

2012-07-01T23:59:59.000Z

151

Generation of large-scale winds in horizontally anisotropic convection  

E-Print Network (OSTI)

We simulate three-dimensional, horizontally periodic Rayleigh-B\\'enard convection between free-slip horizontal plates, rotating about a horizontal axis. When both the temperature difference between the plates and the rotation rate are sufficiently large, a strong horizontal wind is generated that is perpendicular to both the rotation vector and the gravity vector. The wind is turbulent, large-scale, and vertically sheared. Horizontal anisotropy, engendered here by rotation, appears necessary for such wind generation. Most of the kinetic energy of the flow resides in the wind, and the vertical turbulent heat flux is much lower on average than when there is no wind.

von Hardenberg, J; Provenzale, A; Spiegel, E A

2015-01-01T23:59:59.000Z

152

Particle Impact Damping in the Horizontal Plane  

E-Print Network (OSTI)

and the acceleration of gravity g. Butt and Akl [2] performed a numerical analysis of an impact damper applied to a cantilever beam undergoing forced steady-state oscillations. The continuous beam was modeled as a multi-degree of freedom (MDOF) system rather than... packing ratio and vibration frequency. 5 Masri [8] developed an exact solution of the general steady-state response of a forced steady-state horizontally excited system with an impact damper. The motion of the system was taken as a piecewise...

Witt, Bryan

2012-07-16T23:59:59.000Z

153

Complexity of Counting CSP with Complex Weights  

E-Print Network (OSTI)

We give a complexity dichotomy theorem for the counting Constraint Satisfaction Problem (#CSP in short) with complex weights. To this end, we give three conditions for its tractability. Let F be any finite set of complex-valued functions, then we prove that #CSP(F) is solvable in polynomial time if all three conditions are satisfied; and is #P-hard otherwise. Our complexity dichotomy generalizes a long series of important results on counting problems: (a) the problem of counting graph homomorphisms is the special case when there is a single symmetric binary function in F; (b) the problem of counting directed graph homomorphisms is the special case when there is a single not-necessarily-symmetric binary function in F; and (c) the standard form of #CSP is when all functions in F take values in {0,1}.

Cai, Jin-Yi

2011-01-01T23:59:59.000Z

154

Low cost crowd counting using audio tones  

E-Print Network (OSTI)

With mobile devices becoming ubiquitous, collaborative applications have become increasingly pervasive. In these applications, there is a strong need to obtain a count of the number of mobile devices present in an area, ...

Kannan, Pravein Govindan

155

Rack Module Enhancements of Counting Invariants  

E-Print Network (OSTI)

We introduce a modified rack algebra Z[X] for racks X with finite rack rank N. We use representations of Z[X] into rings, known as rack modules, to define enhancements of the rack counting invariant for classical and virtual knots and links. We provide computations and examples to show that the new invariants are strictly stronger than the unenhanced counting invariant and are not determined by the Jones or Alexander polynomials.

Haas, Aaron; Nelson, Sam; Yuen, Jonah; Zhan, Qingcheng

2010-01-01T23:59:59.000Z

156

Nonplanar fracture propagation from a horizontal wellbore: Experimental study  

SciTech Connect

This paper presents experimental results related to hydraulic fracturing of a horizontal well, specifically the nonplanar fracture geometries resulting from fracture initiation and propagation. Experiments were designed to investigate nonplanar fracture geometries. This paper discusses how these nonplanar fractures can be responsible for premature screenout and excessive treatment pressure when a horizontal well is hydraulically fractured. Reasons for unsuccessful hydraulic fracturing treatments of a horizontal well are presented and recommendations to ensure clear communication channels between the wellbore and the fracture are given.

Abass, H.H.; Hedayati, S.; Meadows, D.L.

1996-08-01T23:59:59.000Z

157

California Natural Gas Count of Underground Storage Capacity...  

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

Count of Underground Storage Capacity (Number of Elements) California Natural Gas Count of Underground Storage Capacity (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3...

158

Kick circulation analysis for extended reach and horizontal wells  

E-Print Network (OSTI)

loop to study gas removal in horizontal wellbores with an inclination greater than horizontal. His test setup consisted of outer pipe with an inner diameter of 6.37 in. and inner pipe with an outer diameter of 2.37 in. As gas and liquid were flowed... loop to study gas removal in horizontal wellbores with an inclination greater than horizontal. His test setup consisted of outer pipe with an inner diameter of 6.37 in. and inner pipe with an outer diameter of 2.37 in. As gas and liquid were flowed...

Long, Maximilian Mark

2005-02-17T23:59:59.000Z

159

FLOP Counts for Single-Node Tests  

NLE Websites -- All DOE Office Websites (Extended Search)

FLOP Counts for "Small" Single-Node Miniapplication Tests FLOP Counts for "Small" Single-Node Miniapplication Tests FLOP Counts for "Small" Single-Node Miniapplication Tests These data, obtained using the NERSC Hopper system, are provided for reference. Code MPI Tasks Threads Reference TFLOP Count Benchmark Time (seconds) # of iterations miniFE 144 1 5.05435E+12 130.2 (total program time) miniGhost 96 1 6.55500E+12 76.5 AMG 96 1 1.30418E+12 66.95 18 UMT 96 1 1.30211E+13 416.99 49 SNAP 96 1 5.84246E+11 15.37 3059 miniDFT 40 1 2.32379E+13 153.97 GTC 64 1 6.63670E+13 1839.4 MILC 24 1 1.45971E+13 744.3 CORRECTION (02 August 2013): The values given for the reference counts are FLOPs, not TFLOPs. Last edited: 2013-08-02 09:40:18

160

The determination of stochastic loads on horizontal axis wind turbine blades  

SciTech Connect

The FAST Code which is capable of determining structural loads of a flexible, teetering, horizontal axis wind turbine is described and comparisons of calculated loads with test data are given at two wind speeds for the ESI-80. The FAST Code models a two-bladed HAWT with degrees-of-freedom for blade bending, teeter, drive train flexibility, yaw, and windwise and crosswind tower motion. The code allows blade dimensions, stiffnesses, and weights to differ and the code models tower shadow, wind shear, and turbulence. Additionally, dynamic stall is included as are delta-3 and an underslung rotor. Load comparisons are made with ESI-80 test data in the form of power spectral density, rainflow counting occurrence histograms, and azimuth averaged bin plots. It is concluded that agreement between the FAST Code and test results is good.

Freeman, L.N.; Wilson, R.E. [Oregon State Univ., Corvallis, OR (United States). Dept. of Mechanical Engineering

1998-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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.


161

TRAC-PF1/MOD3 calculations of Savannah River Laboratory Rig FA single-annulus heated experiments  

SciTech Connect

This paper presents the results of TRAC-PF1/MOD3 benchmarks of the Rig FA experiments performed at the Savannah River Laboratory to simulate prototypic reactor fuel assembly behavior over a range of fluid conditions typical of the emergency cooling system (ECS) phase of a loss-of-coolant accident (LOCA). The primary purpose of this work was to use the SRL Rig FA tests to qualify the TRAC-PF1/MOD3 computer code and models for computing Mark-22 fuel assembly LOCA/ECS power limits. This qualification effort was part of a larger effort undertaken by the Los Alamos National Laboratory for the US Department of Energy to independently confirm power limits for the Savannah River Site K Reactor. The results of this benchmark effort as discussed in this paper demonstrate that TRAC/PF1/MOD3 coupled with proper modeling is capable of simulating thermal-hydraulic phenomena typical of that encountered in Mark-22 fuel assembly during LOCA/ECS conditions.

Fischer, S.R.; McDaniel, C.K.

1992-01-01T23:59:59.000Z

162

Experimental analysis of control loops with different delay times in the supply air system of a radiator test rig  

Science Journals Connector (OSTI)

The test rig of low-temperature hot-water radiator is a typical multi-input multi-output (MIMO) thermal system with large time delay. Aiming at the control of the supply air temperature and the temperature of the environmental chamber in the test rig, the paper carries out the fuzzy control experiments and PI control experiments based on adjusting the electric heater in the supply air system, in which there are two control loops with various delay time. The experiments researched two types of fuzzy control methods which are the basic fuzzy control (BFC), and the self-organizing rules fuzzy control (SORFC) with zero initial control rules. For the control loop of supply air temperature with short delay time, PI control performs better with fast convergence speed and small overshoot than the BFC and the SORFC. The convergence speed of the BFC method is lower than other two control methods. For the control loop of chamber temperature with long delay time, the SORFC has a satisfied control performance with less overshoot and stable error than the BFC and PI control.

Yongpan Chen; Jili Zhang; Zhen Lu; Tianyi Zhao; Hui Liu

2011-01-01T23:59:59.000Z

163

Acid Placement in Acid Jetting Treatments in Long Horizontal Wells  

E-Print Network (OSTI)

In the Middle East, extended reach horizontal wells (on the order of 25,000 feet of horizontal displacement) are commonly acid stimulated by jetting acid out of drill pipe. The acid is jetted onto the face of the openhole wellbore as the drill pipe...

Sasongko, Hari

2012-07-16T23:59:59.000Z

164

Optical planar waveguide for cell counting  

Science Journals Connector (OSTI)

Low cost counting of cells has medical applications in screening military medicine disaster medicine and rural healthcare. In this report we present a shallow buried planar waveguide fabricated by potassium ion exchange in glass that enables low-cost and rapid counting of metal-tagged objects that lie in the evanescent field of the waveguide. Laser light transmitted through the waveguide was attenuated proportionately to the presence of metal-coated microstructures fabricated from photoresist. This technology enables the low-cost enumeration of cells from blood urine or other biofluids.

John LeBlanc; Andrew J. Mueller; Adrian Prinz; Manish J. Butte

2012-01-01T23:59:59.000Z

165

Steerable vertical to horizontal energy transducer for mobile robots  

DOE Patents (OSTI)

The present invention provides a steerable vertical to horizontal energy transducer for mobile robots that less complex and requires less power than two degree of freedom tilt mechanisms. The present invention comprises an end effector that, when mounted with a hopping actuator, translates along axis (typically vertical) actuation into combined vertical and horizontal motion. The end effector, or foot, mounts with an end of the actuator that moves toward the support surface (typically a floor or the earth). The foot is shaped so that the first contact with the support surface is off the axis of the actuator. Off-axis contact with the support surface generates an on-axis force (typically resulting in vertical motion) and a moment orthogonal to the axis. The moment initiates a horizontal tumbling motion, and tilts the actuator so that its axis is oriented with a horizontal component and continued actuation generates both vertical and horizontal force.

Spletzer, Barry L. (Albuquerque, NM); Fischer, Gary J. (Albuquerque, NM); Feddema, John T. (Albuquerque, NM)

2001-01-01T23:59:59.000Z

166

Small (5 million Btu/h) and large (300 million Btu/h) thermal test rigs for coal and coal slurry burner development  

SciTech Connect

NEI International Combustion Ltd. of Derby, England, now operates two thermal test rigs for the development of burners capable of handling coal-water slurries (CWS). A general description of the large rig and its capacity was given. Also, the necessary conversions of the equipment to handle CWS were described. Information on the properties of the CWS was included. This consisted of chemical analysis of the parent coal and the slurry, sieve analysis of a dry sample, and viscosity versus temperature data of the CWS. The process of design development of the burner was outlined. Ten illustrations were presented, including schematic diagrams of equipment and graphs of data.

Allen, J.W.; Beal, P.R.; Hufton, P.F.

1983-01-01T23:59:59.000Z

167

Gas Filled Detectors counting & tracking of  

E-Print Network (OSTI)

Gas Filled Detectors counting & tracking of particles energy loss generation of electron-ion+ pairs #12;Gas Filled Detectors Primary and Total Ionization fast charged particles ionize the atoms of a gas fraction of resulting primary electrons have enough kinetic energy to ionize other atoms #12;Gas Filled

Peletier, Reynier

168

Horizontal oil well applications and oil recovery assessment. Volume 1: Success of horizontal well technology, Final report  

SciTech Connect

Horizontal technology has been applied in over 110 formations in the USA. Volume I of this study addresses the overall success of horizontal technology, especially in less-publicized formations, i.e., other than the Austin Chalk, Bakken, and Niobrara. Operators in the USA. and Canada were surveyed on a formation-by-formation basis by means of a questionnaire. Response data were received describing horizontal well projects in 58 formations in the USA. and 88 in Canada. Operators responses were analyzed for trends in technical and economic success based on lithology (clastics and carbonates) and resource type (light oil, heavy oil, and gas). The potential impact of horizontal technology on reserves was also estimated. A forecast of horizontal drilling activity over the next decade was developed.

Deskins, W.G.; McDonald, W.J.; Knoll, R.G.; Springer, S.J.

1995-03-01T23:59:59.000Z

169

Method of positioning tubing within a horizontal well  

SciTech Connect

This patent describes a method of variably and selectively positioning coil tubing in a horizontally drilled well having a generally vertical section, a curve section and a generally horizontal section. It comprises securing a generally hollow tubing guide shoe to one end of a tubing string; inserting the tubing guide shoe and a portion of the tubing string through the generally vertical section and the curve section and into a portion of the generally horizontal section; and inserting coil tubing through the tubing string.

Young, C.E.

1992-06-02T23:59:59.000Z

170

Fraced horizontal well shows potential of deep tight gas  

SciTech Connect

Successful completion of a multiple fraced, deep horizontal well demonstrated new techniques for producing tight gas sands. In Northwest Germany, Mobil Erdgas-Erdoel GmbH drilled, cased, and fraced the world`s deepest horizontal well in the ultra-tight Rotliegendes ``Main`` sand at 15,687 ft (4,783 m) true vertical depth. The multiple frac concept provides a cost-efficient method to economically produce significant gas resources in the ultra-tight Rotliegendes ``Main`` sand. Besides the satisfactory initial gas production rate, the well established several world records, including deepest horizontal well with multiple fracs, and proved this new technique to develop ultra-tight sands.

Schueler, S. [Mobil Erdgas-Erdoel GmbH, Celle (Germany); Santos, R. [Mobil Erdgas-Erdoel GmbH, Hamburg (Germany)

1996-01-08T23:59:59.000Z

171

Type A Accident Investigation of the June 21, 2001, Drilling Rig Operator Injury at the Fermi National Accelerator Laboratory, August 2001  

Energy.gov (U.S. Department of Energy (DOE))

On June 21, 2001, at approximately 9:40 A.M., a construction sub-tier contractor employee (the “Operator”) at the Fermi National Accelerator Laboratory (Fermilab) received serious head injuries requiring hospitalization when he was struck by part of the drilling rig (a “tong”) that he was operating.

172

A Hardware-in-the-Loop Test Rig for Designing Near-Earth Aerial Robotics Vefa Narli and Paul Y. Oh  

E-Print Network (OSTI)

and build- ings. The lack of flight data and performance metrics poses a gap that prevents the analytical is a full-scale diorama of a near-Earth environment like forests. The rig is used to capture metrics adverse weather conditions and obscurants, like fog, rain or dust. A key gap in the knowledge domain

Oh, Paul

173

Horizontal Integration, an AS – Telecom Network Operations Case Study  

E-Print Network (OSTI)

Horizontal integration within the network operations department’s Wireless Data, VoIP, and IP teams will greatly improve network availability and quality of service to AS – Telecom customers by empowering employees, improving communication...

Kekovole, Stephen Andaye

2011-12-16T23:59:59.000Z

174

A New Quasi-Horizontal Glider to Measure Biophysical Microstructure  

Science Journals Connector (OSTI)

This study describes the development of a new tethered quasi-horizontal microstructure profiler: the Turbulence Ocean Microstructure Acquisition Profiler–Glider [TurboMAP-Glider (TMG)]. It is a unique instrument, capable of measuring ocean ...

Herminio Foloni-Neto; Rolf Lueck; Yoshiro Mabuchi; Hisato Nakamura; Masakazu Arima; Hidekatsu Yamazaki

2014-10-01T23:59:59.000Z

175

Activity Stream - Solar: monthly and annual average global horizontal...  

Open Energy Info (EERE)

global horizontal irradiance GIS data at one-degree resolution of the World from NASASSE 4 days ago Jay Huggins added the extra "catalog" to the dataset Solar: monthly and...

176

Simulation studies of waterflood performance with horizontal wells  

E-Print Network (OSTI)

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

Ferreira, Horacio

1995-01-01T23:59:59.000Z

177

Borehole Stability Analysis of Horizontal Drilling in Shale Gas Reservoirs  

Science Journals Connector (OSTI)

Serious wellbore instability occurs frequently during horizontal drilling in shale gas reservoirs. The conventional forecast model of in ... not suitable for wellbore stability analysis in laminated shale gas for...

Jun-Liang Yuan; Jin-Gen Deng; Qiang Tan; Bao-Hua Yu…

2013-09-01T23:59:59.000Z

178

Horizontal Divergence Associated with Zonally Isolated Jet Streams  

Science Journals Connector (OSTI)

Horizontal divergence in the upper troposphere associated with zonally isolated jet streams in the climatological-mean fold for the Northern Hemisphere winter is examined by using the wind fields obtained from the NMC operational analyses in the ...

Hisashi Nakamura

1993-07-01T23:59:59.000Z

179

Refrigerant forced-convection condensation inside horizontal tubes  

E-Print Network (OSTI)

Condensing heat transfer rates inside a horizontal tube were investigated -for large quality changes across the tube. The proposed correlation is a modification of the work of Rohsenow, Webber and Ling [29]. The result of ...

Bae, Soonhoon

1968-01-01T23:59:59.000Z

180

COUNTING WITH IRRATIONAL TILES SCOTT GARRABRANT  

E-Print Network (OSTI)

and rational side lengths. Note that the dark shaded tiles here are bookends, i.e. every tiling of [1 Ã? n] must f(n) is in F1, i.e. equal to fT (n) for all n 1 and some rational set of tiles T as aboveCOUNTING WITH IRRATIONAL TILES SCOTT GARRABRANT AND IGOR PAK Abstract. We introduce and study

Pak, Igor

Note: This page contains sample records for the topic "horizontal rig count" 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

High-rate counting efficiency of VLPC  

SciTech Connect

A simple model is applied to describe dependencies of Visible Light Photon Counter (VLPC) characteristics on temperature and operating voltage. Observed counting efficiency losses at high illumination, improved by operating at higher temperature, are seen to be a consequence of de-biasing within the VLPC structure. A design improvement to minimize internal de-biasing for future VLPC generations is considered. {copyright} {ital 1998 American Institute of Physics.}

Hogue, H.H. [Research and Technology Center, Boeing Electronic Systems and Missile Defense, 3370 Miraloma Ave M/S HB17, Anaheim, California 92803 (United States)

1998-11-01T23:59:59.000Z

182

Galactic structure studies with BATC star counts  

E-Print Network (OSTI)

We report the first results of star counts carried out with the National Astronomical Observatories (NAOC) 60/90 cm Schmidt Telescope in 15 intermediate-band filters from 3000 to 10000 {\\AA} in the BATC survey. We analyze a sample of over 1400 main sequence stars ($14\\le$V$\\le21$), which lie in the field with central coordinates R.A.=$09^h53^m13^s.30$ and DEC=47$^\\circ49^{\\prime}00^{\\prime\\prime}.0$ (J2000). The field of view is 0.95 deg$^{2}$, and the spatial scale was $1\\arcsec.67$. In our model, the distribution of stars perpendicular to the plane of the Galaxy is given by two exponential disks (thin disk plus thick disk) and a de Vaucouleurs halo. Based on star counts, we derive the scale heights of the thin disk to be $320^{+14}_{-15}$ pc and of the thick disk to be $640^{+30}_{-32}$ pc, respectively, with a local density of $7.0\\pm1%$ of the thin disk. We find that the observed counts support an axial ratio of $c/a\\le0.6$ for a de Vaucouleurs $r^{1/4}$ law, implying a more flattened halo. We also derive...

Du, C; Ma, J; Chen, A B C; Yang, Y; Li, J; Wu, H; Jiang, Z; Chen, J; Du, Cuihua; Zhou, Xu; Ma, Jun; Chen, Alfred B-C; Yang, Yanbin; Li, Jiuli; Wu, Hong; Jiang, Zhaoji; Chen, Jiansheng

2003-01-01T23:59:59.000Z

183

Full Counting Statistics of Stationary Particle Beams  

E-Print Network (OSTI)

We present a general scheme for treating particle beams as many particle systems. This includes the full counting statistics and the requirements of Bose/Fermi symmetry. In the stationary limit, i.e., for longer and longer beams, the total particle number diverges, and a description in Fock space is no longer possible. We therefore extend the formalism to include stationary beams. These beams exhibit a well-defined "local" counting statistics, by which we mean the full counting statistics of all clicks falling into any given finite interval. We treat in detail a model of a source, creating particles in a fixed state, which then evolve under the free time evolution, and we determine the resulting stationary beam in the far field. In comparison to the one-particle picture we obtain a correction due to Bose/Fermi statistics, which depends on the emission rate. We also consider plane waves as stationary many particle states, and determine the distribution of intervals between successive clicks in such a beam.

J. Kiukas; A. Ruschhaupt; R. F. Werner

2011-03-07T23:59:59.000Z

184

A Triple-Porosity Model for Fractured Horizontal Wells  

E-Print Network (OSTI)

A TRIPLE-POROSITY MODEL FOR FRACTURED HORIZONTAL WELLS A Thesis by HASAN ALI H ALAHMADI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 2010 Major Subject: Petroleum Engineering A Triple-Porosity Model for Fractured Horizontal Wells Copyright 2010 Hasan Ali H Alahmadi A TRIPLE-POROSITY MODEL FOR FRACTURED...

Alahmadi, Hasan Ali H.

2010-10-12T23:59:59.000Z

185

It's the little things that count | National Nuclear Security...  

National Nuclear Security Administration (NNSA)

NPO News Releases It's the little things that count It's the little things that count OAK RIDGE, Tenn. -- In just five months, the Jack Case Center at the National Nuclear...

186

Measurement of zero-count probability in photoelectron statistics  

Science Journals Connector (OSTI)

The probability of zero-count P0(T) (as a function of the counting interval T) is one of the most interesting functions characterizing a light field. Experimentally,...

Basano, L; Ottonello, P

1982-01-01T23:59:59.000Z

187

Alternative Fuels Data Center: Alternative Fueling Station Counts by State  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Locate Stations Locate Stations Printable Version Share this resource Send a link to Alternative Fuels Data Center: Alternative Fueling Station Counts by State to someone by E-mail Share Alternative Fuels Data Center: Alternative Fueling Station Counts by State on Facebook Tweet about Alternative Fuels Data Center: Alternative Fueling Station Counts by State on Twitter Bookmark Alternative Fuels Data Center: Alternative Fueling Station Counts by State on Google Bookmark Alternative Fuels Data Center: Alternative Fueling Station Counts by State on Delicious Rank Alternative Fuels Data Center: Alternative Fueling Station Counts by State on Digg Find More places to share Alternative Fuels Data Center: Alternative Fueling Station Counts by State on AddThis.com... Alternative Fueling Station Counts by State

188

Using LWD to drill horizontally above oil/water contacts  

SciTech Connect

This paper reports on the first successful horizontal oil well in the state of Arkansas which helped increase production from one Smackover field. This completion utilized resistivity logging during drilling and improved drainage patterns in the thin oil column, resulting in more effective reserve depletion. Midway Field Unit is located in Lafayette County of southwestern Arkansas. In addition to being the first successful horizontal well in Arkansas, Midway Field Units well 2-15 was also American Exploration's first horizontal well. The well was brought on line February 28, 1991 flowing 380 bopd and no water, and is currently producing oil on rod pump at about 200 bpd. This completion increased field production by 27%. A second horizontal well was drilled and the third completion of this type is now under way. Additional horizontal wells are planned for Midway field based on the success of the first two wells. This approach to depleting reserves in fields with by-passed reserves and thin oil columns like the Midway Unit has proven to be cost effective and efficient.

Trusty, J.E.; Emmet, L.R. (American Exploration Co., Houston, TX (US))

1992-03-01T23:59:59.000Z

189

Application of horizontal drilling to tight gas reservoirs  

SciTech Connect

Vertical fractures and lithologic heterogeneity are extremely important factors controlling gas flow rates and total gas recovery from tight (very low permeability) reservoirs. These reservoirs generally have in situ matrix permeabilities to gas of less than 0.1 md. Enhanced gas recovery methods have usually involved hydraulic fracturing; however, the induced vertical hydraulic fractures almost always parallel the natural fracture and may not be an efficient method to establish a good conduit to the wellbore. Horizontal drilling appears to be an optimum method to cut across many open vertical fractures. Horizontal holes will provide an efficient method to drain heterogeneous tight reservoirs even in unfractured rocks. Although many horizontal wells have now been completed in coalbed methane and oil reservoirs, very few have been drilled to exclusively evaluate tight gas reservoirs. The U.S. Department of Energy (DOE) has funded some horizontal and slanthole drilling in order to demonstrate the applicability of these techniques for gas development. Four DOE holes have been drilled in Devonian gas shales in the Appalachian basin, and one hole has been drilled in Upper Cretaceous tight sandstones in the Piceance basin of Colorado. The Colorado field experiment has provided valuable information on the abundance and openness of deeply buried vertical fractures in tight sandstones. These studies, plus higher gas prices, should help encourage industry to begin to further utilize horizontal drilling as a new exploitation method for tight gas reservoirs.

Spencer, C.W. (U.S. Geological Survey, Lakewood, CO (United States)); Lorenz, J.C. (Sandia National Labs., Albuquerque, NM (United States)); Brown, C.A. (Synder Oil Co., Denver, CO (United States))

1991-03-01T23:59:59.000Z

190

Solar: annual and seasonal average global horizontal (GHI) GIS data  

Open Energy Info (EERE)

global horizontal (GHI) GIS data global horizontal (GHI) GIS data (contours) for Brazil from INPE and LABSOLAR Dataset Summary Description (Abstract): Annual and seasonal mean of Global Horizontal Solar Radiation in kWh/m2/day based on data from 1995 to 2002 (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders (Supplemental Information): The cross-calibration process worked with data from 3 ground stations: Caicó (located in the Northeast of Brazil), Florianópolis (located in the South) and Balbina (located in Amazonia). These data have been used for validation and comparison of radiation transfer models operated in SWERA to estimate the incidence of solar radiation on the surface of the country from satellite images

191

The Impact of using different parameterizations of unresolved horizontal  

NLE Websites -- All DOE Office Websites (Extended Search)

The Impact of using different parameterizations of unresolved horizontal The Impact of using different parameterizations of unresolved horizontal variability of cloud water in the CCCma GCM Cole, Jason Meteorological Service of Canada Barker, Howard Meteorological Service of Canada Li, Jiangnan Canadian Center for Climate Modelling von Salzen, Knut Category: Modeling A current area of research in atmospheric radiative transfer involves description and inclusion of unresolved cloud structure in radiative transfer models that are used in global climate models (GCMs). One way of accounting for the structure of unresolved cloud in radiative transfer models is to use the Monte Carlo Independent Column Approximation (McICA) (see the poster by H. Barker). In this poster we focus on description of unresolved horizontal variability of cloud water. By using McICA in the GCM

192

Horizontal Beam Tubes - HFIR Technical Parameters | ORNL Neutron Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Horizontal Beam Tubes Horizontal Beam Tubes The reactor has four horizontal beam tubes that supply the neutrons to the neutron scattering instruments. Details for each beam tube and instrument can be found on the HFIR instrument page. Each of the beam tubes that supply these instruments with neutrons is described subsequently. HB-1 and HB-3 The HB-1 and HB-3 thermal neutron beam tube designs are identical except for the length. Both are situated tangential to the reactor core so that the tubes point at reflector material and do not point directly at the fuel. An internal collimator is installed at the outboard end. This collimator is fabricated out of carbon steel and is plated with nickel. The collimator provides a 2.75-in by 5.5-in. rectangular aperture. A rotary shutter is located outboard of each of these beam tubes. The

193

MHK Technologies/Horizon Horizontal Platform | Open Energy Information  

Open Energy Info (EERE)

Horizontal Platform Horizontal Platform < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Horizon Horizontal Platform.jpg Technology Profile Primary Organization Elgen Wave Technology Resource Click here Wave Technology Type Click here Point Absorber - Floating Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description Horizon is an array of specialized point absorbers contained in an ultra stable floating platform The unique design of the platform causes it to be entirely unaffected by waves and swells allowing it to remain almost perfectly motionless Horizon converts energy on both the up and down strokes of the floats This oscillating bi directional motion is converted to a rotating mono directional motion by horizon s unique linear drive converters The output drive shaft is connected to a generator which in turn is connected to a transmission line laid on the ocean floor running to the utility grid on land

194

Tests show production logging problems in horizontal gas wells  

SciTech Connect

A study has concluded that production logging tools employed to evaluate multiphase horizontal well production behavior should be carefully screened as to their response characteristics in fully-segregated, two-phase flow. The study, performed at Marathon Oil Co.'s petroleum technology center in Littleton, Colo., indicated that gas in highly deviated well bores segregates rapidly in the presence of water, creating a downhole environment that produces sporadic responses from full bore and diverter spinners as well as density and holdup tools. Gas Research Institute (GRI), as part of its horizontal gas well completion technology program, initiated the full-scale laboratory study to determine the severity and consequences of multiphase flow on tool response from horizontal well production. The paper discusses background of the problem, the test objectives, test facility, experimental procedures, single-phase flow, two-phase flow, and recommendations.

Branagan, P. (Branagan and Associates, Las Vegas, NV (United States)); Knight, B.L. (Marathon Oil Co., Littleton, CO (United States)); Aslakson, J. (Gas Research Inst., Chicago, IL (United States)); Middlebrook, M.L. (CER Corp., Las Vegas, NV (United States))

1994-01-10T23:59:59.000Z

195

MHK Technologies/Horizontal Axis Logarithmic Spiral Turbine | Open Energy  

Open Energy Info (EERE)

Horizontal Axis Logarithmic Spiral Turbine Horizontal Axis Logarithmic Spiral Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Technology Profile Primary Organization Golden Turbines LLC Technology Resource Click here Current Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description A Horizontal axis Water turbine following the logarithmic spiral to generate clean electric energy from slow moving currents like rivers or ocean currents and with least impact on marine life and the environment because it doesn t require a damn or building huge structures Technology Dimensions Device Testing Date Submitted 36:09.5 << Return to the MHK database homepage

196

Method and apparatus for logging short radius horizontal drainholes  

SciTech Connect

This patent describes an apparatus for use in logging a short radius horizontal drainhole. It comprises: a tubing string having a low portion; the lower portion of the tubing string including sensor support means therein; the lower portion of the tubing string containing openings communicating with the interior thereof in the vicinity of the sensor support means to thereby exposed the interior to the pressure and temperature conditions of the horizontal drainhole; and the lower portion of the tubing string including an end portion extending transversely of the tubing sting.

Taylor, D.E.

1991-04-30T23:59:59.000Z

197

155The Great Gulf Oil Catastrophe of 2010 NASA's Terra satellite flew over the Deepwater Horizon rig's oil spill in the Gulf  

E-Print Network (OSTI)

rig's oil spill in the Gulf of Mexico on Saturday, May 1 and captured the above natural-color image of Mexico. NOAA's estimated release rate of oil spilling into the Gulf is 200,000 gallons per day since/meter 2 ? B) kg/meter 2 ? Problem 4 ­ The density of crude oil is about D=850 kg/m 3 . From your estimate

198

Design and fabrication of a bending rotation fatigue test rig for in situ electrochemical analysis during fatigue testing of NiTi shape memory alloy wires  

Science Journals Connector (OSTI)

The current investigation proposes a novel method for simultaneous assessment of the electrochemical and structural fatigue properties of nickel-titanium shape memory alloy (NiTi SMA) wires. The design and layout of an in situ electrochemical cell in a custom-made bending rotation fatigue (BRF) test rig is presented. This newly designed test rig allows performing a wide spectrum of experiments for studying the influence of fatigue on corrosion and vice versa. This can be achieved by performing ex situ and/or in situ measurements. The versatility of the combined electrochemical/mechanical test rig is demonstrated by studying the electrochemical behavior of NiTi SMA wires in 0.9% NaCl electrolyte under load. The ex situ measurements allow addressing various issues for example the influence of pre-fatigue on the localized corrosion resistance or the influence of hydrogen on fatigue life. Ex situ experiments showed that a pre-fatigued wire is more susceptible to localized corrosion. The synergetic effect can be concluded from the polarization studies and specifically from an in situ study of the open circuit potential (OCP) transients which sensitively react to the elementary repassivation events related to the local failure of the oxide layer. It can also be used as an indicator for identifying the onset of the fatigue failure.

Jenni Kristin Zglinski; Matthias Frotscher

2013-01-01T23:59:59.000Z

199

Design and fabrication of a bending rotation fatigue test rig for in situ electrochemical analysis during fatigue testing of NiTi shape memory alloy wires  

SciTech Connect

The current investigation proposes a novel method for simultaneous assessment of the electrochemical and structural fatigue properties of nickel-titanium shape memory alloy (NiTi SMA) wires. The design and layout of an in situ electrochemical cell in a custom-made bending rotation fatigue (BRF) test rig is presented. This newly designed test rig allows performing a wide spectrum of experiments for studying the influence of fatigue on corrosion and vice versa. This can be achieved by performing ex situ and/or in situ measurements. The versatility of the combined electrochemical/mechanical test rig is demonstrated by studying the electrochemical behavior of NiTi SMA wires in 0.9% NaCl electrolyte under load. The ex situ measurements allow addressing various issues, for example, the influence of pre-fatigue on the localized corrosion resistance, or the influence of hydrogen on fatigue life. Ex situ experiments showed that a pre-fatigued wire is more susceptible to localized corrosion. The synergetic effect can be concluded from the polarization studies and specifically from an in situ study of the open circuit potential (OCP) transients, which sensitively react to the elementary repassivation events related to the local failure of the oxide layer. It can also be used as an indicator for identifying the onset of the fatigue failure.

Neelakantan, Lakshman [Ruhr-Universitaet Bochum, Institute for Materials, 44801 Bochum (Germany); Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, 600 036 Chennai (India); Zglinski, Jenni Kristin; Eggeler, Gunther [Ruhr-Universitaet Bochum, Institute for Materials, 44801 Bochum (Germany); Frotscher, Matthias [Ruhr-Universitaet Bochum, Institute for Materials, 44801 Bochum (Germany); CORTRONIK GmbH, 18119 Rostock-Warnemuende (Germany)

2013-03-15T23:59:59.000Z

200

Weighted power counting and chiral dimensional regularization  

E-Print Network (OSTI)

We define a modified dimensional-regularization technique that overcomes several difficulties of the ordinary technique, and is specially designed to work efficiently in chiral and parity violating quantum field theories, in arbitrary dimensions greater than 2. When the dimension of spacetime is continued to complex values, spinors, vectors and tensors keep the components they have in the physical dimension, therefore the gamma matrices are the standard ones. Propagators are regularized with the help of evanescent higher-derivative kinetic terms, which are of Majorana type in the case of chiral fermions. If the new terms are organized in a clever way, weighted power counting provides an efficient control on the renormalization of the theory, and allows us to show that the resulting chiral dimensional regularization is consistent to all orders. The new technique considerably simplifies the proofs of properties that hold to all orders, and makes them suitable to be generalized to wider classes of models. Typica...

Anselmi, Damiano

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

Number Counts and Dynamical Vacuum Cosmologies  

E-Print Network (OSTI)

We study non-linear structure formation in an interacting model of the dark sector of the Universe in which the dark energy density decays linearly with the Hubble parameter, $\\rho_{\\Lambda} \\propto H$, leading to a constant-rate creation of cold dark matter. We derive all relevant expressions to calculate the mass function and the cluster number density using the Sheth-Torman formalism and show that the effect of the interaction process is to increase the number of bound structures of large masses ($M \\gtrsim 10^{14} M_{\\odot}h^{-1}$) when compared to the standard $\\Lambda$CDM model. Since these models are not reducible to each other, this number counts signature can in principle be tested in future surveys.

N. Chandrachani Devi; H. A. Borges; S. Carneiro; J. S. Alcaniz

2014-07-07T23:59:59.000Z

202

Number Counts and Dynamical Vacuum Cosmologies  

E-Print Network (OSTI)

We study non-linear structure formation in an interacting model of the dark sector of the Universe in which the dark energy density decays linearly with the Hubble parameter, $\\rho_{\\Lambda} \\propto H$, leading to a constant-rate creation of cold dark matter. We derive all relevant expressions to calculate the mass function and the cluster number density using the Sheth-Torman formalism and show that the effect of the interaction process is to increase the number of bound structures of large masses ($M \\gtrsim 10^{14} M_{\\odot}h^{-1}$) when compared to the standard $\\Lambda$CDM model. Since these models are not reducible to each other, this number counts signature can in principle be tested in future surveys.

Devi, N Chandrachani; Carneiro, S; Alcaniz, J S

2014-01-01T23:59:59.000Z

203

IMPROVED MISCIBLE NITROGEN FLOOD PERFORMANCE UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL LATERALS IN A CLASS I RESERVOIR--EAST BINGER (MARCHAND) UNIT  

SciTech Connect

Implementation of the work program of Budget Period 2 of the East Binger Unit (''EBU'') DOE Project continues. The drilling of new horizontal well EBU 63-2H, scheduled for this reporting period, was delayed due to a lack of rig availability. This well was spud near the end of the reporting period. EBU 59-1 was converted to injection service, and injection capacity at the plant was increased from 19 MMscf/d to 22 MMscf/d. Although other factors have temporarily limited the field's ability to fully utilize the increased capacity, injection in the pilot area has been increased over 2 MMscf/d since the start of the project. Nitrogen recycle within the pilot area has been reduced with the projects implemented to date. Prior to pilot development, nitrogen production was 56% of nitrogen injected. Currently, nitrogen production is only 26% of injection. Pilot area oil production has increased 90 bpd or 30%, with 160 bpd from new wells offset by a loss of 70 bpd from wells converted to injection.

Joe Sinner

2003-08-19T23:59:59.000Z

204

A Simplified Morphing Blade for Horizontal Axis Wind Turbines  

E-Print Network (OSTI)

A Simplified Morphing Blade for Horizontal Axis Wind Turbines Weijun WANG , St´ephane CARO, Fouad salinas@hotmail.com The aim of designing wind turbine blades is to improve the power capture ability by adjusting the twist of the blade's root and tip. To evaluate the performance of wind turbine blades

Recanati, Catherine

205

Optimization of fractured well performance of horizontal gas wells  

E-Print Network (OSTI)

................................................24 3.4 Ideal Number of Transverse Fractures..........................................26 3.5 Constant Volume Transverse Fractures ........................................32 3.6... of a longitudinal fracture..............................................10 2.5 Example of horizontal well with longitudinal fracture performance .............11 2.6 DVS representation of transverse fractures...

Magalhaes, Fellipe Vieira

2009-06-02T23:59:59.000Z

206

Transverse horizontal spatial coherence of deep arrivals at megameter ranges  

Science Journals Connector (OSTI)

Predictions of transverse horizontal spatial coherence from path integral theory are compared with measurements for two ranges between 2000 and 3000 km. The measurements derive from a low-frequency (75 Hz) bottom-mounted source at depth 810 m near Kauai that transmitted m-sequence signals over several years to two bottom-mounted horizontal line arrays in the North Pacific. In this paper we consider the early arriving portion of the deep acoustic field at these arrays. Horizontal coherence length estimates on the order of 400 m show good agreement with lengths calculated from theory. These lengths correspond to about 1° in horizontal arrival angle variability using a simple extended spatially incoherent source model. Estimates of scintillation index log-amplitude variance and decibel intensity variance indicate that the fields were partially saturated. There was no significant seasonal variability in these measures. The scintillation index predictions agree quite well with the dataset estimates; nevertheless the scattering regime predictions (fully saturated) vary from the regime classification (partially saturated) inferred from observation. This contradictory result suggests that a fuller characterization of scattering regime metrics may be required.

Rex K. Andrew; Bruce M. Howe; James A. Mercer; The NPAL Group (J. A. Colosi, B. D. Cornuelle, B. D. Dushaw, M. A. Dzieciuch, B. M. Howe, J. A. Mercer, W. H. Munk, R. C. Spindel, and P. F. Worcester)

2005-01-01T23:59:59.000Z

207

Horizontal Air Flow Drying Foods at Home Safely  

E-Print Network (OSTI)

Horizontal Air Flow Drying Foods at Home Safely Choosing a Food Dehydrator Drying is one. The thermostat should go up to 160 degrees F. The unit should have a fan or blower for air circulation. Mesh trays made of sturdy plastic that can be easily washed. UL seal of approval is recommended for safety

208

Experimental investigation of a horizontal flexible-membrane wave barrier  

E-Print Network (OSTI)

A series of experiments is conducted in a two-dimensional glass-walled wave tank to confirm numerical solutions based on two-dimensional linear hydro-elastic theory for a horizontal flexible-membrane wave barrier. The model test is performed by a...

Choi, Hae-Jin

1997-01-01T23:59:59.000Z

209

Experimental and simulation studies of zone isolation in horizontal wells  

E-Print Network (OSTI)

wellbore plug in the horizontal section downstream of the problem zone, (iii) spotting and squeezing a formation gel in between the straddle wellbore plug system into the problem zone, and (iv) washing out the excess formation gel and the wellbore plug...

Tan, Joo Sitt

1997-01-01T23:59:59.000Z

210

Estimation and specification tests of count data recreation demand functions  

E-Print Network (OSTI)

in the truncated and untruncated Poisson models, suggesting that the negative binomial family of distributions are more appropriate models. The results also demonstrate that using the seemingly unrelated Poisson regression estimator with event count data instead...- parameter distribution with mean and variance of Yi equal to Xt. This distribution can be extended to a count regression model by letting the expected count, E(Y; ) =? X&, to vary according to (II. 2) 4 = exp(q'P), where x; and P are, respectively...

Gomez, Irma Adriana

1991-01-01T23:59:59.000Z

211

Absolute nuclear material assay using count distribution (LAMBDA) space  

DOE Patents (OSTI)

A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.

Prasad, Manoj K. (Pleasanton, CA); Snyderman, Neal J. (Berkeley, CA); Rowland, Mark S. (Alamo, CA)

2012-06-05T23:59:59.000Z

212

Horizontal drilling the Bakken Formation, Williston basin: A new approach  

SciTech Connect

Horizontal drilling is an attractive new approach to exploration and development of the Mississippian/Devonian Bakken Formation in the southwestern part of North Dakota. This drilling technique increases the probability of success, the profit potential, the effective drainage area maximizing recoverable reserves, and the productivity by encountering more natural occurring fractures. The target formation, the Mississippian/Devonian Bakken, consists of three members in an overlapping relationship, a lower organic-rich black shale, a middle siltstone/limestone, and an upper organic-rich black shale. It attains a maximum thickness of 145 ft and thins to a feather edge along its depositional limit. Considered to be a major source rock for the Williston basin, the Bakken is usually overpressured where productive. Overpressuring is attributed to intense hydrocarbon generation. Reservoir properties are poor with core fluid porosities being generally 5% or less and permeabilities ranging from 0.1 to 0.2 md. The presence of natural fractures in the shale are necessary for production. Two types of fractures are associated with Bakken reservoirs: large vertical fractures (of tectonic origin) and microfractures (probably related to hydrocarbon generation). An economic comparison between horizontal and vertical wells show that well completion costs are approximately two times higher (average costs; $1,500,000 for a horizontal to $850,000 for a vertical) with average payout for horizontal wells projected to occur in half the time (1.5 yr instead of 3.4 yr). Projected production and reserves are considered to be 2 to 4 times greater from a horizontal well.

Lefever, J.A. (North Dakota Geological Survey, Grand Forks (USA))

1990-05-01T23:59:59.000Z

213

Acoustic Method for Fish Counting and Fish Sizing in Tanks  

E-Print Network (OSTI)

Counting and Fish Sizing in Tanks W.A. Kuperman and Philippedistributed among its 97 tanks to maximize feed-conversionrequires inventory- ing tanks regularly. Currently, this is

Kuperman, William A.; Roux, Philippe

2004-01-01T23:59:59.000Z

214

Acoustic Method for Fish Counting and Fish Sizing in Tanks  

E-Print Network (OSTI)

measurements in an echoic tank. ICES Journal of Marineto fish counting in a tank. Journal of the Acousticaland materials of the cylindrical tanks for the experiments.

Roux, Philippe; Conti, Stéphane; Demer, David; Maurer, Benjamin D.

2005-01-01T23:59:59.000Z

215

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2012 (EIA)

the 5-year average. The total rig count was 1,769, up 12 from a year ago.The natural gas rotary rig count totaled 335 as of February 28, which represents a decline of 7 rigs from...

216

Weighted power counting and chiral dimensional regularization  

E-Print Network (OSTI)

We define a modified dimensional-regularization technique that overcomes several difficulties of the ordinary technique, and is specially designed to work efficiently in chiral and parity violating quantum field theories, in arbitrary dimensions greater than 2. When the dimension of spacetime is continued to complex values, spinors, vectors and tensors keep the components they have in the physical dimension, therefore the $\\gamma $ matrices are the standard ones. Propagators are regularized with the help of evanescent higher-derivative kinetic terms, which are of the Majorana type in the case of chiral fermions. If the new terms are organized in a clever way, weighted power counting provides an efficient control on the renormalization of the theory, and allows us to show that the resulting chiral dimensional regularization is consistent to all orders. The new technique considerably simplifies the proofs of properties that hold to all orders, and makes them suitable to be generalized to wider classes of models. Typical examples are the renormalizability of chiral gauge theories and the Adler-Bardeen theorem. The difficulty of explicit computations, on the other hand, may increase.

Damiano Anselmi

2014-05-13T23:59:59.000Z

217

MODELING COUNT DATA FROM MULTIPLE SENSORS: A BUILDING OCCUPANCY MODEL  

E-Print Network (OSTI)

MODELING COUNT DATA FROM MULTIPLE SENSORS: A BUILDING OCCUPANCY MODEL Jon Hutchins, Alexander Ihler a probabilistic model for predict- ing the occupancy of a building using networks of people-counting sensors-sensor probabilistic model for building occupancy. Inference for the oc- cupancy model follows in Section 4

Smyth, Padhraic

218

MODELING COUNT DATA FROM MULTIPLE SENSORS: A BUILDING OCCUPANCY MODEL  

E-Print Network (OSTI)

MODELING COUNT DATA FROM MULTIPLE SENSORS: A BUILDING OCCUPANCY MODEL Jon Hutchins, Alexander Ihler a probabilistic model for predict­ ing the occupancy of a building using networks of people­counting sensors­sensor probabilistic model for building occupancy. Inference for the oc­ cupancy model follows in Section 4

Ihler, Alexander

219

DSK: k-mer counting with very low memory usage  

Science Journals Connector (OSTI)

......k-mer counting with very low memory usage Guillaume Rizk 1 Dominique Lavenier 2 Rayan...function of the desired memory and disk usage. In Section 3, DSK is used to count all...sequences, k-mer length k, target memory usage M (bits), target disk space D (bits......

Guillaume Rizk; Dominique Lavenier; Rayan Chikhi

2013-03-01T23:59:59.000Z

220

Results of the Second Diffuse Horizontal Irradiance IOP  

NLE Websites -- All DOE Office Websites (Extended Search)

Results of the Second Diffuse Horizontal Irradiance IOP Results of the Second Diffuse Horizontal Irradiance IOP J. J. Michalsky Air Resources Laboratory National Oceanic and Atmospheric Administration Boulder, Colorado R. Dolce and A. Los Kipp & Zonen, Inc. Bohemia, New York E. G. Dutton and D. A. Nelson Climate Monitoring and Diagnostics Laboratory, National Oceanic and Atmospheric Administration Boulder, Colorado M. P. Haeffelin Ecole Polytechnique/ Laboratorie de Meteorologie Dynamique Palaiseau Cedex, France W. Q. Jeffries Yankee Environmental System, Inc. Turners Falls, Massachusetts T. L. Stoffel and I. Reda National Renewable Energy Laboratory Golden, Colorado J. Hickey Eppley Laboratory Inc. Newport, Rhode Island D. Mathias Carter-Scott Design Victoria, Australia L. J. B. McArthur

Note: This page contains sample records for the topic "horizontal rig count" 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

Horizontal Pretreatment Reactor System (Poster), NREL (National Renewable Energy Laboratory)  

NLE Websites -- All DOE Office Websites (Extended Search)

Diff Diff erent pretreatment chemistry/ residence time combinations are possible using these multiple horizontal-tube reactors * Each tube is indirectly and directly steam heated to temperatures of 150 0 C to 210 0 C * Residence time is varied by changing the speed of the auger that moves the biomass through each tube reactor * Tubes are used individually or in combination to achieve diff erent pretreatment residence times * Smaller tubes made from Hastelloy, an acid-resistant material, are used with more corrosive chemicals and residence times from 3 to 20 minutes * Larger tubes made from 316 stainless steel are used for residence times from 20 to 120 minutes Horizontal Pretreatment Reactor System Versatile pretreatment system for a wide range of pretreatment chemistries

222

Counting small RNA in disease-causing organisms  

NLE Websites -- All DOE Office Websites (Extended Search)

Counting small RNA in disease-causing organisms Counting small RNA in disease-causing organisms Counting small RNA in disease-causing organisms Los Alamos researchers demonstrated improved technical methods capable of directly counting small RNA molecules in pathogenic (disease-causing) bacteria. June 17, 2013 Artist's concept of the fluorescence labeling and detection of small RNA in pathogenic bacteria. Artist's concept of the fluorescence labeling and detection of small RNA in pathogenic bacteria. The new technique reduced the number of false positives, which improved the accuracy of the count statistics, and it significantly reduced the image processing time. Small molecules of RNA (tens to hundreds of nucleotides in length) play a key regulatory role in bacteria. Due to their small size, directly

223

Horizontal film balance having wide range and high sensitivity  

DOE Patents (OSTI)

A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed.

Abraham, B.M.; Miyano, K.; Ketterson, J.B.

1981-03-05T23:59:59.000Z

224

Horizontal film balance having wide range and high sensitivity  

DOE Patents (OSTI)

A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed. 5 figs.

Abraham, B.M.; Miyano, K.; Ketterson, J.B.

1983-11-08T23:59:59.000Z

225

Horizontal film balance having wide range and high sensitivity  

DOE Patents (OSTI)

A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed.

Abraham, Bernard M. (Oak Park, IL); Miyano, Kenjiro (Downers Grove, IL); Ketterson, John B. (Evanston, IL)

1983-01-01T23:59:59.000Z

226

A mathematical simulation of horizontal drain-hole performance  

E-Print Network (OSTI)

Science and Technology, Kee-Lung, Taiwan, Republic of China Chairman of Advisory Comnittee: Dr. Ching H. Wu The application of horizontal drain-hole in petroleum industry represents one of the new developments in oil recovery techniques. Many... production condition was simulated. The validity of the computational algorithm employed in the simulator was ascertained using the results obtained from a general purpose black oil simulator, BOSS-AIM. The verification runs were made under a semi...

Cheng, Thomas Ru-Kang

1984-01-01T23:59:59.000Z

227

Horizontal natural gas storage caverns and methods for producing same  

DOE Patents (OSTI)

The invention provides caverns and methods for producing caverns in bedded salt deposits for the storage of materials that are not solvents for salt. The contemplated salt deposits are of the bedded, non-domed variety, more particularly salt found in layered formations that are sufficiently thick to enable the production of commercially usefully sized caverns completely encompassed by walls of salt of the formation. In a preferred method, a first bore hole is drilled into the salt formation and a cavity for receiving insolubles is leached from the salt formation. Thereafter, at a predetermined distance away from the first bore hole, a second bore hole is drilled towards the salt formation. As this drill approaches the salt, the drill assumes a slant approach and enters the salt and drills through it in a horizontal direction until it intersects the cavity for receiving insolubles. This produces a substantially horizontal conduit from which solvent is controlledly supplied to the surrounding salt formation, leaching the salt and producing a concentrated brine which is removed through the first bore hole. Insolubles are collected in the cavity for receiving insolubles. By controlledly supplying solvent, a horizontal cavern is produced with two bore holes extending therefrom.

Russo, Anthony (Albuquerque, NM)

1995-01-01T23:59:59.000Z

228

Horizontal well improves oil recovery from polymer flood--  

SciTech Connect

Horizontal drilling associated with an injection scheme appears to be highly promising for obtaining additional oil recovery. Horizontal well CR 163H, in the Chateaurenard field is discussed. It demonstrated that a thin unconsolidated sand can be successfully drilled and cased. The productivity index (PI) of the well was much greater than vertical wells, and an unproduced oil bank was successfully intersected. On the negative side, it was necessary to pump low in a very deviated part of the well, and the drilling cost was high compared to an onshore vertical well. CR 163H was the fifth and probably most difficult horizontal well drilled by Elf Aquitaine. Located within a polymer-flood project, the target was a 7-m thick sand reservoir at a vertical depth of 590:0080 m. In this inverted seven-spot configuration with one injector in the center and six producers at a distance of 400 m, a polymer solution was injected from 1977 to 1983, followed by water injection.

Bruckert, L. (Elf Aquitaine, Boussens, (FR))

1989-12-18T23:59:59.000Z

229

THE HORIZONTAL BOUNDARY-LAYER STRUCTURE FOR THE CONVECTIVE REGIME IN A LATERALLY HEATED VERTICAL SLOT  

Science Journals Connector (OSTI)

......for the case when the horizontal walls of the slot are...and a main two-tier horizontal boundary layer is identified...closed form for the outer horizontal layer which is dominated...reactor cooling systems, solar collectors and cavity insulation......

P. G. DANIELS

1987-05-01T23:59:59.000Z

230

Communications Copper Horizontal Cable 27 15 13-1 SECTION 27 15 13  

E-Print Network (OSTI)

Communications Copper Horizontal Cable 27 15 13-1 SECTION 27 15 13 COMMUNICATIONS COPPER HORIZONTAL of category copper horizontal cable. B. The cable performance (category 5e, category 6A) shall be as specified 20 Copper Testing 5. 27 11 19 Communications Terminations Blocks and Patch Panels 6. 27 15 43

Dawson, Clint N.

231

Hoisting and Rigging  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8 8 HOISTS 8-i This chapter provides safety standards for inspecting, testing, and operating hoists not permanently mounted on overhead cranes and implements the requirements of ASME B30.11 ("Monorail Systems and Underhung Cranes"), B30.16["Overhead Hoists (Underhung)"], and B30.21 ("Manually Lever Operated Hoists") (for latest ASME standards, see http://catalog.asme.org/home.cfm?Category=CS). 8.1 GENERAL .................................................................................................................................8-1 8.1.1 Operator Training/Qualification ..................................................................................8-4 8.1.2 Marking........................................................................................................................8-4

232

Hoisting and Rigging  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7 7 OVERHEAD AND GANTRY CRANES 7-i This chapter specifies operation, inspection, maintenance, and testing requirements for the use of overhead and gantry cranes and implements the requirements of ASME B30.2 ["Overhead and Gantry Cranes (Top- Running Bridge, Single or Multiple Girder, Top-Running Trolley Hoist)"], B30.11 ("Monorail Systems and Underhung Cranes"), and B30.17 ["Overhead and Gantry Cranes (Top-Running Bridge, Single Girder, Underhung Hoist")] (for latest ASME standards, see http://catalog.asme.org/home.cfm?Category=CS). 7.1 GENERAL .................................................................................................................................7-1 7.1.1 Operator Training/Qualification

233

Hoisting and Rigging  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CHAPTER 9 MOBILE CRANES 9-i This chapter specifies operation, inspection, maintenance, and testing requirements for the use of mobile cranes and implements the requirements of ASME B30.5 ("Mobile and Locomotive Cranes") (for latest ASME standards, see http://catalog.asme.org/home.cfm?Category=CS). 9.1 GENERAL .................................................................................................................................9-1 9.1.1 Operator Training/Qualification ..................................................................................9-1 9.1.2 Load Limits..................................................................................................................9-1 9.1.3 Load Rating Chart........................................................................................................9-1

234

Hoisting and Rigging  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

4 4 LIFTING PERSONNEL 4-i Chapter 4 Lifting Personnel This chapter specifies the design and inspection requirements for personnel lift platforms as well as the operational requirements for such platforms and appurtenant hoisting equipment. It implements the requirements of ASME B30.23, Personnel Lifting Systems (for latest ASME standards, see http://catalog.asme.org/home.cfm?Category=CS). 4.1 GENERAL ................................................................................................................................4-1 4.1.1 Personnel Lifting Evaluation .......................................................................................4-1 4.1.2 Designated Leader .......................................................................................................4-1

235

Hoisting and Rigging  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Change Notice No. 1 DOE-STD-1090-2007 Change Notice No. 1 DOE-STD-1090-2007 December 2007 Chapter 4 Provide ASME attribution at introduction to the Table on Contents and on Figures 4-3,4 and Exhibits 1 & 2 Chapter 7 Provide ASME attribution at introduction to the Table on Contents and on Figures 7-1,2,3,4,5 and Table 7-1 Chapter 8 Provide ASME attribution at introduction to the Table on Contents and on Figures 8-1,2,3,4,5,6,7,8,9 and Table 8-1 Chapter 9 Provide ASME attribution at introduction to the Table on Contents and on Figures 9-1,2,3,4,5,6 and Table 9-2 Chapter 11 Provide ASME attribution at introduction to the Table on Contents and on Figures 11-10,15 and Tables 11-10,11,14,15,16 Chapter 12 Provide ASME attribution at introduction to the Table on Contents and on

236

rig upgrades2.qxp  

NLE Websites -- All DOE Office Websites (Extended Search)

T R A P E D O F E N E R G Y E T A T S D E T I N U S O F A M E R I C A E A s the oil and gas industry continues to drill in more remote areas, at deeper depths, and in more...

237

When DNA Needs to Stand Up and Be Counted  

NLE Websites -- All DOE Office Websites (Extended Search)

When DNA Needs to Stand Up and Be Counted Print When DNA Needs to Stand Up and Be Counted Print DNA microarrays are small metal, glass, or silicon chips covered with patterns of short single-stranded DNA (ssDNA). These "DNA chips" are revolutionizing biotechnology, allowing scientists to identify and count many DNA sequences simultaneously. They are the enabling technology for genomic-based medicine and are a critical component of advanced diagnostic systems for medical and homeland security applications. Like digital chips, DNA chips are parallel, accurate, fast, and small. These advantages, however, can only be realized if the fragile biomolecules survive the attachment process intact. Furthermore, biomolecules must be properly oriented to perform their biological function. In other words, the DNA literally must stand up to be counted. Understanding both the attachment and orientation of DNA on gold surfaces was the goal of recent experiments performed at ALS Beamline 8.0.1 by an international collaboration of scientists.

238

When DNA Needs to Stand Up and Be Counted  

NLE Websites -- All DOE Office Websites (Extended Search)

When DNA Needs to Stand Up and Be Counted Print When DNA Needs to Stand Up and Be Counted Print DNA microarrays are small metal, glass, or silicon chips covered with patterns of short single-stranded DNA (ssDNA). These "DNA chips" are revolutionizing biotechnology, allowing scientists to identify and count many DNA sequences simultaneously. They are the enabling technology for genomic-based medicine and are a critical component of advanced diagnostic systems for medical and homeland security applications. Like digital chips, DNA chips are parallel, accurate, fast, and small. These advantages, however, can only be realized if the fragile biomolecules survive the attachment process intact. Furthermore, biomolecules must be properly oriented to perform their biological function. In other words, the DNA literally must stand up to be counted. Understanding both the attachment and orientation of DNA on gold surfaces was the goal of recent experiments performed at ALS Beamline 8.0.1 by an international collaboration of scientists.

239

The Argonne low level14C counting system  

Science Journals Connector (OSTI)

A low level14CO2 counting system is described. This system was used to process several thousand CO2 samples derived from atmospheric collections at various altitudes. Special features include counter construction...

J. Gray; S. J. Rymas; L. D. Studebaker…

1988-10-01T23:59:59.000Z

240

Algorithmic issues in queueing systems and combinatorial counting problems  

E-Print Network (OSTI)

(cont.) However, these randomized algorithms can never provide proven upper or lower bounds on the number of objects they are counting, but can only give probabilistic estimates. We propose a set of deterministic algorithms ...

Katz-Rogozhnikov, Dmitriy A

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

Correlated neutron counting for the 21st century  

SciTech Connect

Correlated neutron counting techniques, such as neutron coincidence and multiplicity counting, are widely employed at nuclear fuel cycle facilities for the accountancy of nuclear material such as plutonium. These techniques need to be improved and enhanced to meet the challenges of complex measurement items and future nuclear safeguards applications, for example; the non-destructive assay of spent nuclear fuel, high counting rate applications, small sample measurements, and Helium-3 replacement. At the same time simulation tools, used for the design of detection systems based on these techniques, are being developed in anticipation of future needs. This seminar will present the theory and current state of the practice of temporally correlated neutron counting. A range of future safeguards applications will then be presented in the context of research projects at Los Alamos National Laboratory.

Evans, Louise G [Los Alamos National Laboratory

2010-12-01T23:59:59.000Z

242

Solar: monthly and annual average direct normal (DNI), global horizontal  

Open Energy Info (EERE)

South America from NREL South America from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to the model. The local cloud cover can vary significantly even within a single grid cell as a result of terrain effects and other microclimate influences. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

243

Solar: monthly and annual average direct normal (DNI), global horizontal  

Open Energy Info (EERE)

Central America and the Carribean from NREL Central America and the Carribean from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to the model. The local cloud cover can vary significantly even within a single grid cell as a result of terrain effects and other microclimate influences. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

244

Natural convection heat transfer from two horizontal cylinders  

SciTech Connect

Natural convection heat transfer from a single horizontal cylinder and a pair of vertically aligned horizontal cylinders is investigated. Surface heat transfer distributions around the circumference of the cylinders are presented for Rayleigh numbers of 2 x 10{sup 6}, 4 x 10{sup 6} and 6 x 10{sup 6} and a range of cylinder spacings of 1.5, 2 and 3 diameters. With a cylinder pairing the lower cylinder is unaffected by the presence of the second cylinder; the same is true of the upper cylinder if the lower one is not heated. However, when both cylinders are heated it has been found that a plume rising from the heated lower cylinder interacts with the upper cylinder and significantly affects the surface heat transfer distribution. Spectral analysis of surface heat transfer signals has established the influence of the plume oscillations on the heat transfer. Thus, when the plume from the lower cylinder oscillates out of phase with the flow around the upper cylinder it increases the mixing and results in enhanced heat transfer. (author)

Reymond, Olivier; Murray, Darina B. [Department of Mechanical and Manufacturing Engineering, Trinity College Dublin (Ireland); O'Donovan, Tadhg S. [School of Engineering and Physical Sciences, Heriot-Watt University, Nasmyth Building, Edinburgh EH14 4AS (United Kingdom)

2008-09-15T23:59:59.000Z

245

EIA - Natural Gas Exploration & Reserves Data and Analysis  

Gasoline and Diesel Fuel Update (EIA)

natural gas, and lease condensate (annual). Crude Oil and Natural Gas Drilling Activity Rotary rigs in operation, footage drilled, and active well service rig counts (monthly,...

246

Compensated count-rate circuit for radiation survey meter  

DOE Patents (OSTI)

A count-rate compensating circuit is provided which may be used in a portable Geiger-Mueller (G-M) survey meter to ideally compensate for counting loss errors in the G-M tube detector. In a G-M survey meter, wherein the pulse rate from the G-M tube is converted into a pulse rate current applied to a current meter calibrated to indicate dose rate, the compensated circuit generates and controls a reference voltage in response to the rate of pulses from the detector. This reference voltage is gated to the current-generating circuit at a rate identical to the rate of pulses coming from the detector so that the current flowing through the meter is varied in accordance with both the frequency and amplitude of the reference voltage pulses applied thereto so that the count rate is compensated ideally to indicate a true count rate within 1% up to a 50% duty cycle for the detector. A positive feedback circuit is used to control the reference voltage so that the meter output tracks true count rate indicative of the radiation dose rate.

Todd, Richard A. (Powell, TN)

1981-01-01T23:59:59.000Z

247

Solar: monthly and annual average direct normal (DNI), global horizontal  

Open Energy Info (EERE)

East Asia from NREL East Asia from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

248

Zero Discharge Water Management for Horizontal Shale Gas Well Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Discharge Water Management for Discharge Water Management for Horizontal Shale Gas Well Development Final Report Start Date: October 1, 2009 End Date: March 31, 2012 Authors: Paul Ziemkiewicz, PhD Jennifer Hause Raymond Lovett, PhD David Locke Harry Johnson Doug Patchen, PG Report Date Issued: June 2012 DOE Award #: DE-FE0001466 Submitting Organization: West Virginia Water Research Institute West Virginia University PO Box 6064 Morgantown, WV 26506-6064 FilterSure, Inc. PO Box 1277 McLean, VA 22101 ShipShaper, LLP PO Box 2 Morgantown, WV 26507 2 | P a g e Acknowledgment "This material is based upon work supported by the Department of Energy under Award Number DE-FE0001466." Disclaimer "This report was prepared as an account of work sponsored by an agency of the United States

249

Gas flow in vertical slots with large horizontal temperature differences  

SciTech Connect

Perfect gas exact solutions to the steady Navier--Stokes equations are given for laminar convective motion in open and closed vertical slots with large temperature differences using Sutherland law transport properties. The solutions are valid a few slot widths away from the ends in the asymptotic region where the opposite hot and cold wall boundary layers are fully merged. It is found that the static pressure (in the closed slot) and temperature and velocity distributions (in all cases) are very sensitive to property variations, even though the heat flux may not be. We observe the net horizontal and vertical heat fluxes to be the same as those obtained from the Boussinesq equations. Comparisons with constant property solutions and the well-known Boussinesq limiting solution for small temperature differences are given for examples using air.

Chenoweth, D.R.; Paolucci, S.

1985-08-01T23:59:59.000Z

250

Dynamic stall occurrence on a horizontal axis wind turbine blade  

SciTech Connect

Surface pressure data from the National Renewable Energy Laboratory`s ``Combined Experiment`` were analyzed to provide a statistical representation of dynamic stall occurrence on a downwind horizontal axis wind turbine (HAWT). Over twenty thousand blade rotational cycles were each characterized at four span locations by the maximum leading edge suction pressure and by the azimuth, velocity, and yaw at which it occurred. Peak suction values at least twice that seen in static wind tunnel tests were taken to be indicative of dynamic stall. The occurrence of dynamic stall at all but the inboard station (30% span) shows good quantitative agreement with the theoretical limits on inflow velocity and yaw that should yield dynamic stall. Two hypotheses were developed to explain the discrepancy at 30% span. Estimates are also given for the frequency of dynamic stall occurrence on upwind turbines. Operational regimes were identified which minimize the occurrence of dynamic stall events.

Shipley, D.E.; Miller, M.S.; Robinson, M.C. [Colorado Univ., Boulder, CO (United States). Dept. of Aerospace Engineering Sciences

1995-07-01T23:59:59.000Z

251

Solar: monthly and annual average direct normal (DNI), global horizontal  

Open Energy Info (EERE)

Africa from NREL Africa from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

252

High-frequency shear-horizontal surface acoustic wave sensor  

DOE Patents (OSTI)

A Love wave sensor uses a single-phase unidirectional interdigital transducer (IDT) on a piezoelectric substrate for leaky surface acoustic wave generation. The IDT design minimizes propagation losses, bulk wave interferences, provides a highly linear phase response, and eliminates the need for impedance matching. As an example, a high frequency (.about.300-400 MHz) surface acoustic wave (SAW) transducer enables efficient excitation of shear-horizontal waves on 36.degree. Y-cut lithium tantalate (LTO) giving a highly linear phase response (2.8.degree. P-P). The sensor has the ability to detect at the pg/mm.sup.2 level and can perform multi-analyte detection in real-time. The sensor can be used for rapid autonomous detection of pathogenic microorganisms and bioagents by field deployable platforms.

Branch, Darren W

2014-03-11T23:59:59.000Z

253

Productivity and injectivity of horizontal wells. Annual report, March 10, 1995--March 9, 1996  

SciTech Connect

The DOE approval for the annual renewal of the research grant to the Stanford Project on the Productivity and Injectivity of Horizontal Wells was received in early March 1995. Project goals include the advanced modeling of horizontal wells; investigation and incorporation of the effects of reservoir heterogeneities; development of improved methods of calculating multi-phase pressure drops within wellbores; development of multi-well models; testing of horizontal well models with field examples; EOR applications; and application studies and their optimization.

Aziz, K.; Hewett, T.

1996-05-01T23:59:59.000Z

254

Vertically and Horizontally Mounted Wind Mills : Wind Energy Production in Tampere University of Applied Sciences.  

E-Print Network (OSTI)

??The purpose of this thesis was to gather information about vertical and horizontal wind mills and to complete a research on wind power production by… (more)

Evdokimova, Ekaterina

2013-01-01T23:59:59.000Z

255

Horizontal oil well applications and oil recovery assessment. Technical progress report, April--June 1994  

SciTech Connect

Thousands of horizontal wells are being drilled each year in the U.S.A. and around the world. Horizontal wells have increased oil and gas production rates 3 to 8 times those of vertical wells in many areas and have converted non-economic oil reserves to economic reserves. However, the use of horizontal technology in various formation types and applications has not always yielded anticipated success. The primary objective of this project is to examine factors affecting technical and economic success of horizontal well applications. The project`s goals will be accomplished through six tasks designed to evaluate the technical and economic success of horizontal drilling, highlight current limitations, and outline technical needs to overcome these limitations. Data describing operators` experiences throughout the domestic oil and gas industry will be gathered and organized. Canadian horizontal technology will also be documented with an emphasis on lessons the US industry can learn from Canada`s experience. MEI databases containing detailed horizontal case histories will also be used. All these data will be categorized and analyzed to assess the status of horizontal well technology and estimate the impact of horizontal wells on present and future domestic oil recovery and reserves.

McDonald, W.J.

1993-06-03T23:59:59.000Z

256

An experimental study on heat transfer from a horizontal heated circular cylinder enhanced by water spray.  

E-Print Network (OSTI)

??A series of experiments were conducted to investigate the heat transfer which occurs with a heated, constant heat flux, horizontal, single circular cylinder is exposed… (more)

Chau, Man Hei

2009-01-01T23:59:59.000Z

257

Flow fields and heat transfer of liquid falling film on horizontal cylinders.  

E-Print Network (OSTI)

??A liquid film flowing over horizontal cylinders is of great importance as a high rate of heat transfer exists between the falling liquid film and… (more)

Jafar, Farial A

2011-01-01T23:59:59.000Z

258

Characteristics of multimode heat transfer in a differentially-heated horizontal rectangular duct.  

E-Print Network (OSTI)

??This study presents the numerical analysis of steady laminar flow heat transfer in a horizontal rectangular duct with differential heating on the vertical walls. Three… (more)

Wangdhamkoom, Panitan

2007-01-01T23:59:59.000Z

259

Open Source Projects as Horizontal Innovation Networks - By and for users  

E-Print Network (OSTI)

Innovation development, production, distribution and consumption networks can be built up horizontally – with actors consisting only of innovation users (more precisely, ...

von Hippel, Eric

2003-02-20T23:59:59.000Z

260

Natural Convection in a Horizontal Non-Flow-Through Reverse-Osmosis Cell  

Science Journals Connector (OSTI)

Features of the mass transfer in a horizontal non-flow-through reverse-osmosis cell are considered. It is concluded that...

N. B. Kirichenko

Note: This page contains sample records for the topic "horizontal rig count" 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

Subsurface horizontal microfracture propagation within the middle member of the Bakken Formation, Williston Basin, North Dakota.  

E-Print Network (OSTI)

??The Devonian-Mississippian Bakken Formation of the Williston basin does not outcrop. All rock samples are obtained by coring. Open, uncemented, horizontal mode I (joints, with… (more)

Warner, Travis Blackburn.

2011-01-01T23:59:59.000Z

262

Simulation and modeling of flow field around a horizontal axis wind turbine (HAWT) using RANS method.  

E-Print Network (OSTI)

??The principal objective of the proposed CFD analysis is to investigate the flow field around a horizontal axis wind turbine rotor and calculate the turbine's… (more)

Sargsyan, Armen.

2010-01-01T23:59:59.000Z

263

2013 Feds Feed Families: Your Generosity Counts | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2013 Feds Feed Families: Your Generosity Counts 2013 Feds Feed Families: Your Generosity Counts 2013 Feds Feed Families: Your Generosity Counts July 2, 2013 - 5:58pm Addthis (L to R) Kevin Knobloch, DOE Chief of Staff; Fletcher Honemond, Chief Learning Officer; Doug Keeler, Feds Feeds Families National Program Manager; Ella Daniels of the Capital Area Food Bank; Jennifer Hirschorn; Rauland Sharp, 2013 Feds Feeds Families Deputy Champion. | Photo courtesy of Ella Daniels. (L to R) Kevin Knobloch, DOE Chief of Staff; Fletcher Honemond, Chief Learning Officer; Doug Keeler, Feds Feeds Families National Program Manager; Ella Daniels of the Capital Area Food Bank; Jennifer Hirschorn; Rauland Sharp, 2013 Feds Feeds Families Deputy Champion. | Photo courtesy of Ella Daniels. Fletcher Honemond Fletcher Honemond

264

Two Million Smart Meters and Counting | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Million Smart Meters and Counting Million Smart Meters and Counting Two Million Smart Meters and Counting August 31, 2010 - 6:02pm Addthis Elizabeth Meckes Elizabeth Meckes Director of User Experience & Digital Technologies, Office of Public Affairs What does this mean for me? Smart meter technology will help families and businesses cut their energy costs by reducing response time for energy disruptions and enabling consumers to better monitor their consumption. The implementation of smart grid technologies could reduce electricity use by more than four percent annually by 2030 -- that would mean consumers around the country would see savings of over $20 billion each year. Secretary Steven Chu visited Battelle headquarters in Columbus, Ohio, today to make a big announcement about our nation's electrical grid: an

265

Happy Earth Day! 39 and Counting | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Day! 39 and Counting Day! 39 and Counting Happy Earth Day! 39 and Counting April 22, 2009 - 10:55am Addthis Drew Bittner Web Manager, Office of Energy Efficiency and Renewable Energy It was in 1970 that Sen. Gaylord Nelson of Wisconsin established "Earth Day" as a teaching opportunity for budding environmentalists. Seems like a long time ago-I was all of six years old and to me, "green" was something Kermit the Frog sang about being. We've come a long way since then. Earth Day is now a national celebration of environmentalism and conservation. A lot of what we in EERE do is directly supporting the ideals and aspirations of Earth Day, and you can see growing support from major corporations, media and academia. It's pretty exciting, and definitely an exciting time to be in the energy field.

266

2013 Feds Feed Families: Your Generosity Counts | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

013 Feds Feed Families: Your Generosity Counts 013 Feds Feed Families: Your Generosity Counts 2013 Feds Feed Families: Your Generosity Counts July 2, 2013 - 5:58pm Addthis (L to R) Kevin Knobloch, DOE Chief of Staff; Fletcher Honemond, Chief Learning Officer; Doug Keeler, Feds Feeds Families National Program Manager; Ella Daniels of the Capital Area Food Bank; Jennifer Hirschorn; Rauland Sharp, 2013 Feds Feeds Families Deputy Champion. | Photo courtesy of Ella Daniels. (L to R) Kevin Knobloch, DOE Chief of Staff; Fletcher Honemond, Chief Learning Officer; Doug Keeler, Feds Feeds Families National Program Manager; Ella Daniels of the Capital Area Food Bank; Jennifer Hirschorn; Rauland Sharp, 2013 Feds Feeds Families Deputy Champion. | Photo courtesy of Ella Daniels. Fletcher Honemond Fletcher Honemond

267

Students Count -- From the Classroom to the Conference | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Students Count -- From the Classroom to the Conference Students Count -- From the Classroom to the Conference Students Count -- From the Classroom to the Conference January 18, 2012 - 5:42pm Addthis Secretary Chu and former Governor of California Arnold Schwarzenegger speak with students at the 2011 Energy Innovation Summit. | Photo courtesy of ARPA-E. Secretary Chu and former Governor of California Arnold Schwarzenegger speak with students at the 2011 Energy Innovation Summit. | Photo courtesy of ARPA-E. Alexa McClanahan Communications Support Contractor to ARPA-E "The Student Program is a unique opportunity for student energy club leaders throughout the nation to gather, share best practices, and engage with policy makers, entrepreneurs, scientists, and engineers..." Shannon Yee, Student Program Coordinator

268

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

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

269

Power-counting renormalizability of generalized Horava gravity  

E-Print Network (OSTI)

In an earlier article [arXiv:0902.0590 [hep-th], Phys. Rev D80 (2009) 025011], I discussed the potential benefits of allowing Lorentz symmetry breaking in quantum field theories. In particular I discussed the perturbative power-counting finiteness of the normal-ordered :P(phi)^{z>=d}_{d+1}: scalar quantum field theories, and sketched the implications for Horava's model of quantum gravity. In the current rather brief addendum, I will tidy up some dangling issues and fill out some of the technical details of the argument indicating the power-counting renormalizability of a z>=d variant of Horava gravity in (d+1) dimensions.

Matt Visser

2009-12-24T23:59:59.000Z

270

When DNA Needs to Stand Up and Be Counted  

NLE Websites -- All DOE Office Websites (Extended Search)

When DNA Needs to Stand Up and When DNA Needs to Stand Up and Be Counted When DNA Needs to Stand Up and Be Counted Print Wednesday, 31 May 2006 00:00 DNA microarrays are small metal, glass, or silicon chips covered with patterns of short single-stranded DNA (ssDNA). These "DNA chips" are revolutionizing biotechnology, allowing scientists to identify and count many DNA sequences simultaneously. They are the enabling technology for genomic-based medicine and are a critical component of advanced diagnostic systems for medical and homeland security applications. Like digital chips, DNA chips are parallel, accurate, fast, and small. These advantages, however, can only be realized if the fragile biomolecules survive the attachment process intact. Furthermore, biomolecules must be properly oriented to perform their biological function. In other words, the DNA literally must stand up to be counted. Understanding both the attachment and orientation of DNA on gold surfaces was the goal of recent experiments performed at ALS Beamline 8.0.1 by an international collaboration of scientists.

271

Using Bytecode Instruction Counting as Portable CPU Consumption Metric  

E-Print Network (OSTI)

Using Bytecode Instruction Counting as Portable CPU Consumption Metric Walter Binder and Jarle-1015 Lausanne, Switzerland firstname.lastname@epfl.ch Abstract Accounting for the CPU consumption consumption information in order to detect a resource overuse of client components (detection of denial

Binder, Walter

272

Compensated count-rate circuit for radiation survey meter  

DOE Patents (OSTI)

A count-rate compensating circuit is provided which may be used in a portable Geiger-Mueller (G-M) survey meter to ideally compensate for couting loss errors in the G-M tube detector. In a G-M survey meter, wherein the pulse rate from the G-M tube is converted into a pulse rate current applied to a current meter calibrated to indicate dose rate, the compensation circuit generates and controls a reference voltage in response to the rate of pulses from the detector. This reference voltage is gated to the current-generating circuit at a rate identical to the rate of pulses coming from the detector so that the current flowing through the meter is varied in accordance with both the frequency and amplitude of the reference voltage pulses applied thereto so that the count rate is compensated ideally to indicate a true count rate within 1% up to a 50% duty cycle for the detector. A positive feedback circuit is used to control the reference voltage so that the meter output tracks true count rate indicative of the radiation dose rate.

Todd, R.A.

1980-05-12T23:59:59.000Z

273

Counting Defective Parking Functions Peter J Cameron, Daniel Johannsen,  

E-Print Network (OSTI)

parking function of defect k. Suppose that m cars attempt to park in a linear car park with n spacesCounting Defective Parking Functions Peter J Cameron, Daniel Johannsen, Thomas Prellberg, Pascal each choose a preferred parking space in a linear car park with n spaces. Each driver goes

Prellberg, Thomas

274

Counting Defective Parking Functions Peter J Cameron, Daniel Johannsen,  

E-Print Network (OSTI)

the corresponding assignments a defective parking function of defect k. Suppose that m cars attempt to parkCounting Defective Parking Functions Peter J Cameron, Daniel Johannsen, Thomas Prellberg, Pascal a preferred parking space in a linear car park with n spaces. Each driver goes to the chosen space and parks

275

Counts of northern elephant seals, Mirounga angustirostris, from  

E-Print Network (OSTI)

176 Counts of northern elephant seals, Mirounga angustirostris, from large-format aerial northern elephant seals, Mirounga angustirostris, at rooker- ies in the United States and Mexico elephant seals (Bar- tholomew and Boolootian, 1960; Carlisle andAplin, 1966, 1971; Odell, 1971;Antonelis et

276

Counting Protein Structures by DFS with Dynamic Decomposition  

E-Print Network (OSTI)

with dynamic decomposition for count� ing the solutions of a binary CSP completely. In particular, we use as Constraint Satisfaction Problem (CSP) [2, 4]. Recently, counting solutions of a CSP and related problems. Here, we present a method that is especially tailored for this case. Applied to the CSP formulation

Will, Sebastian

277

Comparison of two methods of counting birds at sea  

SciTech Connect

In an attempt to improve techniques for surveying marine birds, the author compares methods for estimating relative abundance and density. Quantitative relationships exist between estimates of relative abundance and density for most marine bird species. Estimates of abundance can be derived from values of density by regression models when the following factors are considered: bird behavior (flying, sitting, and ship-following), duration of the count, and ship speed. The author's data suggest a minimum numerical relationship of 2:1 between estimates of abundance and density for sitting birds and 1:1 for flying birds. Neither method of counting birds at sea eliminates the problem of ship-followers. However, the density method minimizes an inflationary effect caused by ship-followers that is apparent with the abundance estimate, especially when the observer's vessel is associated with fishing activities. Differences in abilities of observers to count birds is a principal, but unavoidable, source of variability with both counting methods. The density method also minimizes this problem by focusing the observer's view in an area with known boundaries. This standardization decreases variability in bird detection due to weather, size and color differences between species, flock sizes, and bird behavior. These factors are not controlled in estimates of abundance.

Powers, K.D.

1982-01-01T23:59:59.000Z

278

Research Demonstration of a Hardware Reference-Counting Heap  

Science Journals Connector (OSTI)

A hardware self-managing heap memory (RCM) for languages like Lisp, Smalltalk, and Java has been designed, built, tested and benchmarked. On every pointer write from the processor, reference-counting transactions are performed in real time within ... Keywords: Performance, garbage collection, uniprocessor

David S. Wise; Brian Heck; Caleb Hess; Willie Hunt; Eric Ost

1997-07-01T23:59:59.000Z

279

Bicycle and pedestrian counting initiative monitors nonmotorized traffic in Minnesota  

E-Print Network (OSTI)

Bicycle and pedestrian counting initiative monitors nonmotorized traffic in Minnesota transitways of Transportation (MnDOT) to develop guidelines and analyze information collected in bicycle and pedestrian traffic methods for monitoring and assessing bicycle and pedestrian traffic that can be used in both permanent

Minnesota, University of

280

PREDICTION OF CUTTINGS BED HEIGHT WITH COMPUTATIONAL FLUID DYNAMICS IN DRILLING HORIZONTAL AND HIGHLY DEVIATED WELLS  

E-Print Network (OSTI)

Louisiana State University Abstract In oil well drilling, the efficient transport of drilled cuttings from pipe and excessive frictional pressure losses while drilling directional and horizontal oil wellsPREDICTION OF CUTTINGS BED HEIGHT WITH COMPUTATIONAL FLUID DYNAMICS IN DRILLING HORIZONTAL

Ullmer, Brygg

Note: This page contains sample records for the topic "horizontal rig count" 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

LQG control of horizontal wind turbines for blades and tower loads alleviation  

E-Print Network (OSTI)

LQG control of horizontal wind turbines for blades and tower loads alleviation A. Pintea*, N of power produced by two bladed horizontal variable speed wind turbines. The proposed controller ensures oscillations and with the tower bending tendency. Keywords: LQG control, Wind turbines, Multi-objective control

Paris-Sud XI, Université de

282

Hydraulics of horizontal wells in fractured shallow aquifer systems Eungyu Parka,*, Hongbin Zhanb  

E-Print Network (OSTI)

Hydraulics of horizontal wells in fractured shallow aquifer systems Eungyu Parka,*, Hongbin Zhanb Accepted 1 May 2003 Abstract An analysis of groundwater hydraulic head in the vicinity of a horizontal well in fractured or porous aquifers considering confined, leaky confined, and water-table aquifer boundary

Zhan, Hongbin

283

Near wake properties of horizontal axis marine current L. Myers and A.S. Bahaj  

E-Print Network (OSTI)

1 Near wake properties of horizontal axis marine current turbines L. Myers and A.S. Bahaj wake region of a tidal current turbine is strongly driven by the combined wake of the device support-scale horizontal axis turbine has been have been measured in a large water channel facility. A downstream map

Quartly, Graham

284

Horizontal oil well applications and oil recovery assessment. Technical progress report, January--March 1994  

SciTech Connect

The primary objective of this project is to examine factors affecting technical and economic success of horizontal well applications. The project`s goals will be accomplished through five tasks designed to evaluate the technical and economic success of horizontal drilling, highlight current limitations, and outline technical needs to overcome these limitations. Data describing operators` experiences throughout the domestic oil and gas industry will be gathered and organized. MEI databases containing detailed horizontal case histories will also be used. All these data will be categorized and analyzed to assess the status of horizontal well technology and estimate the impact of horizontal wells on present and future domestic oil recovery and reserves. Accomplishments for this quarter are presented.

McDonald, W.J.

1994-06-01T23:59:59.000Z

285

Horizontal oil well applications and oil recovery assessment. Volume 2: Applications overview, Final report  

SciTech Connect

Horizontal technology has been applied in over 110 formations in the USA. Volume 1 of this study addresses the overall success of horizontal technology, especially in less-publicized formations, i.e., other than the Austin Chalk, Bakken, and Niobrara. Operators in the USA and Canada were surveyed on a formation-by-formation basis by means of a questionnaire. Response data were received describing horizontal well projects in 58 formations in the USA and 88 in Canada. Operators` responses were analyzed for trends in technical and economic success based on lithology (clastics and carbonates) and resource type (light oil, heavy oil, and gas). The potential impact of horizontal technology on reserves was also estimated. A forecast of horizontal drilling activity over the next decade was developed.

Deskins, W.G.; McDonald, W.J.; Knoll, R.G.; Springer, S.J.

1995-03-01T23:59:59.000Z

286

The binary fraction of extreme horizontal branch stars  

E-Print Network (OSTI)

(Abbreviated) We have used precise radial velocity measurements of subdwarf-B stars from the Palomar-Green catalogue to look for binary extreme horizontal branch (EHB) stars. We identify 36 EHB stars in our sample and find that at least 21 of these stars are binaries. All but one or two of these are new identifications. The minimum binary fraction for EHB stars implied by our survey is 60+-8%. Our survey is sensitive to binaries with orbital periods P less than about 10d. For reasonable assumptions concerning the period distribution and the mass ratio distribution of the binaries, we find that the mean detection efficiency of our survey over this range of orbital periods is 87%. Allowing for this estimated detection efficiency, the fraction of EHB stars which are short-period binaries ($0.03 < P <10d, approximately) is 69+-9%. The value is not strongly dependent on the period distribution below P=10d or the mean companion mass for these short-period binaries. The orbital separation of the stars in these binaries is much less than the size of the red giant from which the EHB star has formed. This is strong evidence that binary star evolution is fundamental to the formation of the majority of EHB stars. If there are also binary EHB stars whose orbital periods are more than about 10d, the fraction of EHB stars whose evolution has been affected by the presence of a companion may be much higher.

P. F. L. Maxted; U. Heber; T. R. Marsh; R. C. North

2001-03-21T23:59:59.000Z

287

Horizontal well will be employed in hydraulic fracturing research  

SciTech Connect

This paper reports on 10-well research site, planned to enable more controlled experiments for better definition of hydraulic fracturing. One of the 10 wells will be a near-horizontal well that will monitor microseismic events along its length. The Gas Research Institute (GR) has begun evaluating a low-permeability, gas-bearing sandstone as the target stratum for experiments to be conducted at its hydraulic fracture test site (HFTS). During a 4-year period, GRI will use the HFTS as a field laboratory to conduct multi-disciplinary research projects to assess the mechanics of hydraulic fracturing. As a result of a screening process the Davis sandstone in the Ft. Worth basin has emerged as the tight gas sand which best fits the selected criteria established by GRI and its contractors, GRI says. The Ft. Worth basin is located approximately 50 miles northwest of Ft. Worth. GRI is planning a research well to fully characterize the Davis prior to making a final decision on the location of the HFTS. If data from the research well indicate the Davis sand does not adequately meet selection criteria, other candidates identified in the screening process will be investigated.

Not Available

1991-05-20T23:59:59.000Z

288

Structural analysis for horizontal storage of 9975 shipping packages  

SciTech Connect

This paper presents a nonlinear dynamic analysis for a 9975 shipping package to evaluate its structural response while stored in a horizontal assembly of packages. The structural response of the 9975 shipping package stored on a 24-inch-wide bottom rack while the upper two tiers of 9975 shipping packages are being loaded on top of it is analyzed. The upper two tiers of the packages are lifted by a forklift truck and then loaded onto the bottom tier of the packages. A nonlinear finite-element dynamic analysis with explicit time integration was performed for a 9975 shipping package to evaluate the consequence of the loading process described above. The effect of the impact load generated by the sudden release of the upper two tiers of the packages to the deformation of the bottom package is accounted for. The ABAQUS/Explicit computer code (Reference 1) was used to perform the computations. The time histories of the deflections and stresses were generated.

Wu, T.

2000-03-16T23:59:59.000Z

289

24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES  

SciTech Connect

Improved ground-imaging capabilities have enormous potential to increase energy, environmental, and economic benefits by improving exploration accuracy and reducing energy consumption during the mining cycle. Seismic tomography has been used successfully to monitor and evaluate geologic conditions ahead of a mining face. A primary limitation to existing seismic tomography, however, is the placement of sensors. The goal of this project is to develop an array of 24 seismic sensors capable of being mounted in either a vertical or horizontal borehole. Development of this technology reduces energy usage in excavation, transportation, ventilation, and processing phases of the mining operation because less waste is mined and the mining cycle suffers fewer interruptions. This new technology benefits all types of mines, including metal/nonmetal, coal, and quarrying. The primary research tasks focused on sensor placement method, sensor housing and clamping design, and cabling and connector selection. An initial design is described in the report. Following assembly, a prototype was tested in the laboratory as well as at a surface stone quarry. Data analysis and tool performance were used for subsequent design modifications. A final design is described, of which several components are available for patent application. Industry partners have shown clear support for this research and demonstrated an interest in commercialization following project completion.

Erik C. Westman

2003-10-24T23:59:59.000Z

290

Global horizontal irradiance clear sky models : implementation and analysis.  

SciTech Connect

Clear sky models estimate the terrestrial solar radiation under a cloudless sky as a function of the solar elevation angle, site altitude, aerosol concentration, water vapor, and various atmospheric conditions. This report provides an overview of a number of global horizontal irradiance (GHI) clear sky models from very simple to complex. Validation of clear-sky models requires comparison of model results to measured irradiance during clear-sky periods. To facilitate validation, we present a new algorithm for automatically identifying clear-sky periods in a time series of GHI measurements. We evaluate the performance of selected clear-sky models using measured data from 30 different sites, totaling about 300 site-years of data. We analyze the variation of these errors across time and location. In terms of error averaged over all locations and times, we found that complex models that correctly account for all the atmospheric parameters are slightly more accurate than other models, but, primarily at low elevations, comparable accuracy can be obtained from some simpler models. However, simpler models often exhibit errors that vary with time of day and season, whereas the errors for complex models vary less over time.

Stein, Joshua S.; Hansen, Clifford W.; Reno, Matthew J.

2012-03-01T23:59:59.000Z

291

Stability analysis of a borehole wall during horizontal directional drilling  

Science Journals Connector (OSTI)

In this paper, numerical simulation strategies are proposed and numerical analyses are performed to investigate the stability of a borehole wall during horizontal directional drilling in loose sand with an emphasis on the role of the filter cake in borehole stability. Two computational scenarios, one in the absence of a filter cake and one with the presence of a filter cake in a borehole wall, are investigated by considering both deep and shallow borehole situations. In the case where no filter cake is formed, the soil–drilling fluid interaction analysis shows that the effective pressure on soil particles will quickly decrease to zero even at a low drilling fluid pressure because of the rapid drainage of the drilling fluids into the loose sands. This conforms to the classical liquefaction criterion, indicating that static (flow) liquefaction-based soil crumbling and sloughing will occur even at a very low drilling fluid pressure if an effective filter cake is not formed. Soil’s permeability effect on pore pressure and the transition to a steady flow are also studied. In the second scenario in which a filter cake is formed, the hydraulic fracture failures around the bores are investigated, which are caused by the expansion of the yielding zones. The yield zone sizes and critical drilling fluid pressures at the moment of hydraulic fracturing failure are calculated from the finite element analyses and the closed-form solution, which is based on classical plasticity theories. The critical fluid pressures from the finite element analyses and the closed-form solutions are very close, but there is a large discrepancy between the yield zone sizes.

X. Wang; R.L. Sterling

2007-01-01T23:59:59.000Z

292

Apparatus And Method For Temperature Correction And Expanded Count Rate Of  

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Temperature Correction And Expanded Count Temperature Correction And Expanded Count Rate Of Inorganic Scintillation Detectors Apparatus And Method For Temperature Correction And Expanded Count Rate Of Inorganic Scintillation Detectors The present invention includes an apparatus and corresponding method for temperature correction and count rate expansion of inorganic scintillation detectors. Available for thumbnail of Feynman Center (505) 665-9090 Email Apparatus And Method For Temperature Correction And Expanded Count Rate Of Inorganic Scintillation Detectors The present invention includes an apparatus and corresponding method for temperature correction and count rate expansion of inorganic scintillation detectors. A temperature sensor is attached to an inorganic scintillation detector. The inorganic scintillation detector, due to interaction with

293

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

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

294

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

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

295

Synthesis of Reversible Functions Beyond Gate Count and Quantum Cost  

E-Print Network (OSTI)

Many synthesis approaches for reversible and quantum logic have been proposed so far. However, most of them generate circuits with respect to simple metrics, i.e. gate count or quantum cost. On the other hand, to physically realize reversible and quantum hardware, additional constraints exist. In this paper, we describe cost metrics beyond gate count and quantum cost that should be considered while synthesizing reversible and quantum logic for the respective target technologies. We show that the evaluation of a synthesis approach may differ if additional costs are applied. In addition, a new cost metric, namely Nearest Neighbor Cost (NNC) which is imposed by realistic physical quantum architectures, is considered in detail. We discuss how existing synthesis flows can be extended to generate optimal circuits with respect to NNC while still keeping the quantum cost small.

Robert Wille; Mehdi Saeedi; Rolf Drechsler

2010-04-26T23:59:59.000Z

296

Real-time aqueous tritium monitor using liquid scintillation counting  

SciTech Connect

An ability to continuously monitor low-level tritium releases in aqueous effluents is of particular interest to heavy water facilities such as those at the Savannah River Site (SRS) and Canadian CANDU reactors. SRS developed a real-time monitoring system based on flow-through liquid scintillation (LS) counting. Sensitivities of 16 pCi/mL and 1 pCi/mL result from five minute and daily averages of counting data respectively. This sensitivity is about 200 times better than similar methods using solid scintillants. The LS system features uncomplicated sample pretreatment, precise of the cocktail and sample water, system features uncomplicated sample pretreatment, precise proportioning of the cocktail and sample water, on-line quench corrections, cocktail consumption as low as 0.15 mL/min, and response to changes in environmental tritium is less than 30 minutes. Field tests demonstrate that conditions necessary for stable analytical results are achieved.

Sigg, R.A.; McCarty, J.E.; Livingston, R.R.; Sanders, M.A.

1994-07-01T23:59:59.000Z

297

Total Gamma Count Rate Analysis Method for Nondestructive Assay Characterization  

SciTech Connect

A new approach to nondestructively characterize waste for disposal, based on total gamma response, has been developed at the Idaho Cleanup Project by CH2M-WG Idaho, LLC and Idaho State University, and is called the total gamma count rate analysis method. The total gamma count rate analysis method measures gamma interactions that produce energetic electrons or positrons in a detector. Based on previous experience with waste assays, the radionuclide content of the waste container is then determined. This approach potentially can yield minimum detection limits of less than 10 nCi/g. The importance of this method is twofold. First, determination of transuranic activity can be made for waste containers that are below the traditional minimum detection limits. Second, waste above 10 nCi/g and below 100 nCi/g can be identified, and a potential path for disposal resolved.

Cecilia R. Hoffman; Yale D. Harker

2006-03-01T23:59:59.000Z

298

Power counting renormalizability of scalar theory in Lifshitz spacetime  

E-Print Network (OSTI)

We analyse the power counting renormalizability of scalar theory in Lifshitz spacetime in D+2 dimensions. We show the spectral dimension becomes 2+(D/z) (z is the critical exponent) after integrating out the radion field. We comment on the AdS/CFT correspondence, and on how to avoid the Lifshitz singularity by flowing into AdS spacetime in the infrared. We also comment on the quantum gravity in Lifshitz spacetime.

Takayuki Hirayama

2012-10-25T23:59:59.000Z

299

Power spectrum of the fluctuation of Chebyshev's prime counting function  

E-Print Network (OSTI)

The one-sided power spectrum of the fluctuation of Chebyshev's weighted prime counting function is numerically estimated based on samples of the fluctuating function of different sizes. The power spectrum is also estimated analytically for large frequency based on Riemann hypothesis and the exact formula for the fluctuating function in terms of all the non-trivial Riemann zeroes. Our analytical estimate is consistent with our numerical estimate of a 1/f^2 power spectrum.

Boon Leong Lan; Shaohen Yong

2005-06-20T23:59:59.000Z

300

Power Counting Regime of Chiral Extrapolation and Beyond  

E-Print Network (OSTI)

Finite-range regularised (FRR) chiral effective field theory is presented in the context of approximation schemes ubiquitous in modern lattice QCD calculations. Using FRR techniques, the power-counting regime (PCR) of chiral perturbation theory can be estimated. To fourth-order in the expansion at the 1% tolerance level, we find m_\\pi < 180 MeV for the PCR, extending only a small distance beyond the physical pion mass.

Derek B. Leinweber; Anthony W. Thomas; Ross D. Young

2005-10-12T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

Counting states in the Bousso-Polchinski Landscape  

E-Print Network (OSTI)

Starting from an exact counting of small and positive cosmological constant states in the Bousso-Polchinski Landscape we recover a well-known approximate formula and a systematic method of improvement by means of the Poisson summation formula. This is a contribution to the special Volume published by the University of Zaragoza in honor of Julio Abad Anto\\~nanzas. En memoria de nuestro amigo, compa\\~nero y maestro Julio.

Cesar Asensio; Antonio Segui

2009-03-11T23:59:59.000Z

302

Power counting renormalizability of quantum gravity in Lifshitz spacetime  

E-Print Network (OSTI)

We analyse the power counting renormalizability of the quantum field theory of Einstein or Einstein-Gauss-Bonnet gravity in D+2 dimensional Lifshitz spacetime. We show the spectral dimension becomes 2+(D/z) at the UV region where z is the critical exponent. Since it is larger than two, the quantum theory of Einstein gravity is not power counting renormalizable. For the pure Einstein-Gauss-Bonnet gravity, where Lifshitz spacetime is allowed only when the parameters are fine tuned, it happens that the graviton modes do not propagate and the quantum field theory is accidentally renormalizable when z>=D. Another method is discretizing the radial coordinate which changes the spectral dimension to 1+(D/z) at the UV region. Since our four dimensional spacetime is continuous, the four dimensional Lorentz symmetry is recovered at the low energy and the power counting renormalizability is still kept for z>=D, if the spacetime near the null singularity in Lifshitz spacetime is modified into AdS spacetime and the discrete radial direction is compactified like a brane world scenario. We also comment on the AdS/CFT correspondence.

Takayuki Hirayama

2012-10-25T23:59:59.000Z

303

Horizontal coherence of low-frequency fixed-path sound in a continental shelf region with internal-wave activity  

E-Print Network (OSTI)

Horizontal coherence of low-frequency fixed-path sound in a continental shelf region with internal gain, horizontally lagged spatial correlation function, and coherent beam power. These quantities vary variations of three coher- ence measures, horizontal correlation length, array gain, and ratio of actual

304

Does parental age difference affect offspring count in humans? Comment on Fieder and Huber  

Science Journals Connector (OSTI)

2007 The Royal Society 23 February 2008 article-commentary Evolutionary biology Does parental age difference affect offspring count in...689-691. ( doi:10.1098/rsbl.2007.0324 ) Does parental age difference affect offspring count in...

2008-01-01T23:59:59.000Z

305

Energy spectrum of cascade showers generated in water by near-horizontal muons  

Science Journals Connector (OSTI)

We discuss measuring cascade shower energy using the NEVOD Cherenkov water detector with ... applied to showers generated by near-horizontal high-energy muons selected using the DECOR coordinate detector deployed...

S. S. Khokhlov; N. S. Barbashina…

2013-05-01T23:59:59.000Z

306

Estimation and Impact of Nonuniform Horizontal Correlation Length Scales for Global Ocean Physical Analyses  

Science Journals Connector (OSTI)

Optimally modeling background-error horizontal correlations is crucial in ocean data assimilation. This paper investigates the impact of releasing the assumption of uniform background-error correlations in a global ocean variational analysis ...

Andrea Storto; Simona Masina; Srdjan Dobricic

2014-10-01T23:59:59.000Z

307

Regulation of horizontal gene transfer by intercellular peptide signaling in Bacillus subtilis  

E-Print Network (OSTI)

Horizontal gene transfer plays an important role in bacterial evolution. Although acquisition of foreign DNA can be beneficial to cells, it can also be detrimental. Therefore, cells that possess mechanisms to regulate ...

Auchtung, Jennifer M

2006-01-01T23:59:59.000Z

308

Multivariate recurrence network analysis for characterizing horizontal oil-water two-phase flow  

Science Journals Connector (OSTI)

Characterizing complex patterns arising from horizontal oil-water two-phase flows is a contemporary and challenging problem of paramount importance. We design a new multisector conductance sensor and systematically carry out horizontal oil-water two-phase flow experiments for measuring multivariate signals of different flow patterns. We then infer multivariate recurrence networks from these experimental data and investigate local cross-network properties for each constructed network. Our results demonstrate that a cross-clustering coefficient from a multivariate recurrence network is very sensitive to transitions among different flow patterns and recovers quantitative insights into the flow behavior underlying horizontal oil-water flows. These properties render multivariate recurrence networks particularly powerful for investigating a horizontal oil-water two-phase flow system and its complex interacting components from a network perspective.

Zhong-Ke Gao; Xin-Wang Zhang; Ning-De Jin; Norbert Marwan; Jürgen Kurths

2013-09-13T23:59:59.000Z

309

Erratum: Horizontal equity in health care utilization in Brazil, 1998-2008  

Science Journals Connector (OSTI)

While the article entitled Horizontal equity in health care utilization in Brazil, 1998–2008 [1] was being prepared for publication, a typographical error was introduced in the methods section. The sentence “The ...

James Macinko; Maria Fernanda Lima-Costa

2014-11-01T23:59:59.000Z

310

Numerical Study of Heavy Oil Flow on Horizontal Pipe Lubricated by Water  

Science Journals Connector (OSTI)

This chapter reports information related to multiphase flow with emphasis to core-annular flow. Industrial application has been given to transient water-heavy ultraviscous oil two-phase flow in horizontal pipe...

Tony Herbert Freire de Andrade…

2012-01-01T23:59:59.000Z

311

Mathematical Model for Heavy Oil–Water–Gas Stratified Flow in Horizontal Pipes  

Science Journals Connector (OSTI)

A one-dimensional, isothermal, transient model for the stratified flow of heavy oil, water and gas, in horizontal pipelines, is presented. The two-fluid mathematical model consists of mass, momentum and energy...

C. Centeno-Reyes; O. Cazarez-Candia

2012-01-01T23:59:59.000Z

312

Extreme Precipitation in an Atmosphere General Circulation Model: Impact of Horizontal and Vertical Model Resolution  

Science Journals Connector (OSTI)

To investigate the influence of atmospheric model resolution on the representation of daily precipitation extremes, ensemble simulations with the atmospheric general circulation model ECHAM5 at different horizontal (T213 to T31) and vertical (L31 ...

Claudia Volosciuk; Douglas Maraun; Vladimir A. Semenov; Wonsun Park

313

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

E-Print Network (OSTI)

because geothermal temperature differences in depth make the wellbore temperature sensitive to the amount and the type of fluids flowing in the wellbore. Geothermal temperature does not change, however, along a horizontal wellbore, which leads to small...

Yoshioka, Keita

2007-09-17T23:59:59.000Z

314

Study of natural convection heat transfer above a horizontal heated plate using a laser specklegram technique  

E-Print Network (OSTI)

Heat transfer by free convection in air from an isothermal horizontal heated flat plate facing upward has been experimentally studied by using a non intrusive and accurate optical technique, Speckle photography or a specklegram technique. The local...

Cheeti, Satish K.R.

2012-06-07T23:59:59.000Z

315

Biomass gasification using a horizontal entrained-flow gasifier and catalytic processing of the product gas.  

E-Print Network (OSTI)

??A novel study on biomass-air gasification using a horizontal entrained-flow gasifier and catalytic processing of the product gas has been conducted. The study was designed… (more)

Legonda, Isack Amos

2012-01-01T23:59:59.000Z

316

Pressure Transient Analysis for Multi-stage Fractured Horizontal Wells in Shale Gas Reservoirs  

Science Journals Connector (OSTI)

This article presents the PTA on the multi-stage fractured horizontal well in shale gas reservoirs incorporating desorption and diffusive flow in ... considering the mechanisms of desorption and diffusion in shale

Jingjing Guo; Liehui Zhang; Haitao Wang; Guoqing Feng

2012-07-01T23:59:59.000Z

317

Effects of horizontal mixing on the upper ocean temperature in the equatorial Pacific Ocean  

Science Journals Connector (OSTI)

The influence of horizontal mixing on the thermal structure of the equatorial Pacific Ocean is examined based on a sigma coordinate ... on the upper thermal structure in the equatorial Pacific Ocean, while their ...

Chuanjiang Huang; Fangli Qiao

2012-01-01T23:59:59.000Z

318

Instability of Hadley–Prats Flow with Viscous Heating in a Horizontal Porous Layer  

Science Journals Connector (OSTI)

The onset of convective rolls instability in a horizontal porous layer subject to a basic temperature gradient inclined with respect to gravity is investigated. The basic velocity has a linear profile with a non-...

A. Barletta; D. A. Nield

2010-09-01T23:59:59.000Z

319

Similarity parameters and a centrifugal convective instability of horizontally inhomogeneous circulations of the Hadley type  

Science Journals Connector (OSTI)

The stability of the zonal axisymmetric quasi-geostrophic hydrostatic solution to the equations of atmospheric dynamics that is determined by the horizontal temperature gradient is studied. Time-dependent regi...

E. B. Gledzer

2008-02-01T23:59:59.000Z

320

The impact of long-distance horizontal gene transfer on prokaryotic genome size  

E-Print Network (OSTI)

Horizontal gene transfer (HGT) is one of the most dominant forces molding prokaryotic gene repertoires. These repertoires can be as small as ?200 genes in intracellular organisms or as large as ?9,000 genes in large, ...

Cordero Sanchez, Otto Xavier

Note: This page contains sample records for the topic "horizontal rig count" 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

Making Votes Count: How to Hack an Election January 31, 2004  

E-Print Network (OSTI)

Making Votes Count: How to Hack an Election January 31, 2004 MAKING VOTES COUNT How to Hack&pagewanted=print&position= (1 of 2)12/22/2004 6:49:30 AM #12;Making Votes Count: How to Hack an Election

Rivest, Ronald L.

322

Automatic fruit recognition and counting from multiple images1 , C.A. Glasbey a,  

E-Print Network (OSTI)

Automatic fruit recognition and counting from multiple images1 Y. Songa , C.A. Glasbey a, , G.e. measuring the observable characteristics of living10 organisms, such as counting the number of fruits and counting fruits from images12 in cluttered greenhouses. The plants are 3-metre high peppers with fruits

Glasbey, Chris

323

Scene-adaptive accurate and fast vertical crowd counting via joint using depth and color information  

Science Journals Connector (OSTI)

Reliable and real-time crowd counting is one of the most important tasks in intelligent visual surveillance systems. Most previous works only count passing people based on color information. Owing to the restrictions of color information influences themselves ... Keywords: Crowd counting, Multimodal joint multimedia processing, Ordinary depth camera, Real time system, Scene-adaptive scheme

Huiyuan Fu, Huadong Ma, Hongtian Xiao

2014-11-01T23:59:59.000Z

324

Relationship between design speed and operating speed at horizontal curves on suburban arterials  

E-Print Network (OSTI)

RELATIONSHIP BETWEEN DESIGN SPEED AND OPERATING SPEED AT HORIZONTAL CURVES ON SUBURBAN ARTERIALS A Thesis by CARL BRIAN SHAMBURGER Submitted to the OIIice of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 1995 Major Subject: Civil Engineering RELATIONSHIP BETWEEN DESIGN SPEED AND OPERATING SPEED AT HORIZONTAL CURVES ON SUBURBAN ARTERIALS A Thesis by CARL BRIAN SHAMBURGER Submitted to Texas A&M University...

Shamburger, Carl Brian

2012-06-07T23:59:59.000Z

325

The experimental and theoretical investigaton of a horizontal-axis wind turbine  

E-Print Network (OSTI)

. Chevalier An experimental and theoretical investigation of a horizontal-axis wind energy conversion device utilizing straight blades as the force- producing surfaces was conducted. The blades were mounted horizontally between two rotating discs and were... positioned with a mechanical cern system to produce the maximum torque at every point around the revolution. The wind turbine was tested in a 7 x 10 ft low speed wind tunnel. The device converted over 20 percent of the energy available in the wind...

Milburn, Robert Terrance

2012-06-07T23:59:59.000Z

326

Evaluation of a slotted orifice plate flow meter using horizontal two phase flow  

E-Print Network (OSTI)

of MASTER OF SCIENCE December 2000 Major Subject: Mechanical Engineering EVALUATION OF A SLOTTED ORIFICE PLATE FLOW METER USING HORIZONTAL TWO PHASE FLOW A Thesis by ANITA ELENA FLORES Submitted to Texas A&M University in partial fulfillment...: Mechanical Engineering ABSTRACT Fvaluation of a Slotted Orifice Plate Flow Meter Using Horizontal Two Phase Flow. (December 2000) Anita Elena Flores, B. S. , Texas A&M I Jniversitv Chair of Advisory Committee: Dr. Herald L. Morrison In the past several...

Flores, Anita Elena

2012-06-07T23:59:59.000Z

327

An experimental study of horizontal barrier formation and containment of NAPLs by gelling liquids  

E-Print Network (OSTI)

[1990], much of the research on this topic can be found only in copies of company reports. Aul and Cervtk [1979] developed a method for grouting horizontal drainage holes in coalbeds. Karol [1990] noted that there has been a growing acceptance... grout for plugging horizontal methane-drainage holes. Lowther and Gabr [1997] experimented with urethane, a different grout, for the formation of hydraulic barriers. Voss et al. [1994] and May et al. [1986] studied chemical grouts for constructing...

Durmusoglu, Ertan

2012-06-07T23:59:59.000Z

328

Neutron counting and gamma spectroscopy with PVT detectors.  

SciTech Connect

Radiation portals normally incorporate a dedicated neutron counter and a gamma-ray detector with at least some spectroscopic capability. This paper describes the design and presents characterization data for a detection system called PVT-NG, which uses large polyvinyl toluene (PVT) detectors to monitor both types of radiation. The detector material is surrounded by polyvinyl chloride (PVC), which emits high-energy gamma rays following neutron capture reactions. Assessments based on high-energy gamma rays are well suited for the detection of neutron sources, particularly in border security applications, because few isotopes in the normal stream of commerce have significant gamma ray yields above 3 MeV. Therefore, an increased count rate for high-energy gamma rays is a strong indicator for the presence of a neutron source. The sensitivity of the PVT-NG sensor to bare {sup 252}Cf is 1.9 counts per second per nanogram (cps/ng) and the sensitivity for {sup 252}Cf surrounded by 2.5 cm of polyethylene is 2.3 cps/ng. The PVT-NG sensor is a proof-of-principal sensor that was not fully optimized. The neutron detector sensitivity could be improved, for instance, by using additional moderator. The PVT-NG detectors and associated electronics are designed to provide improved resolution, gain stability, and performance at high-count rates relative to PVT detectors in typical radiation portals. As well as addressing the needs for neutron detection, these characteristics are also desirable for analysis of the gamma-ray spectra. Accurate isotope identification results were obtained despite the common impression that the absence of photopeaks makes data collected by PVT detectors unsuitable for spectroscopic analysis. The PVT detectors in the PVT-NG unit are used for both gamma-ray and neutron detection, so the sensitive volume exceeds the volume of the detection elements in portals that use dedicated components to detect each type of radiation.

Mitchell, Dean James; Brusseau, Charles A.

2011-06-01T23:59:59.000Z

329

Determination of glomerular filtration rate by external counting methods  

E-Print Network (OSTI)

comparing the DTPA to other accepted methods; the results were very favorable for the use of ggmTC-DTPA. Klopper et al. , sa1d mTc-DTPA ". . . rapidly prepared by a kit method, is a useful addition to the list of radiopharmaceuticals that can be used... points. First, the external counting method is suitable as a true means of determining the glomerular filtration rate (GFR). Second, the method is applicable to cats. To do this, five dogs were injected with ggmTc(Sn)-DTPA. Plasma samples were drawn...

Sartor, Tammy Lee

1981-01-01T23:59:59.000Z

330

Recent developments in position-sensitive neutron counting  

SciTech Connect

Continuing research on advanced methods of thermal neutron detection and position sensing with gas-filled counters was aimed at improving their performance and extending the limits of their applicability. High electron drift velocities obtained from measurements on gas mixtures containing CF/sub 4/ motivated us to evaluate the properties of /sup 3/He-CF/sub 4/ and Ar-CF/sub 4/ mixtures to show that these gases have the potential of improving the count rate capability, spatial resolution, and photon discrimination of neutron PSPCs (position-sensitive proportional counters) and fission counters. In support of the U.S. National Small-Angle Neutron Scattering (SANS) Facility we developed a large-area (65-cm x 65-cm) PSPC camera. RC position encoding was chosen for simplicity of construction, but since previous experience with this encoding method had been limited to smaller PSPCs (area < 25 cm x 25 cm), the main objective of this development was to show that RC encoding parameters and construction methods could be scaled up for larger area PSPCs. The use of the new counter gas mixtures enabled the development of position-sensitive transmission line fission counters (TLFCs) for neutron flux monitoring and a one-dimensional, curved PSPC for large-angle (130/sup 0/) neutron diffraction experiments. The main objective of these developments was to extend the capabilities of the LC-encoding method by mitigating the effects of interelectrode capacitance, and thereby increase the count rate capability.

Valentine, K.H.; Kopp, M.K.; Guerrant, G.C.; Harter, J.A.

1982-01-01T23:59:59.000Z

331

This Week In Petroleum Summary Printer-Friendly Version  

NLE Websites -- All DOE Office Websites (Extended Search)

Rig Count Passes 1,000 On June 24, 2011, the Baker Hughes weekly count of rigs actively drilling for oil in the United States was 1,003, marking the first week since the company...

332

Microsoft Word - Alcoa Extension EBT ROD Attachments - 2010-10...  

NLE Websites -- All DOE Office Websites (Extended Search)

Administration, August 30, 2010 Figure 2 - Natural Gas Rig Count U.S. Natural Gas Rotary Rigs in Operation (Count) 0 200 400 600 800 1000 1200 1400 1600 1800 A u g - 0 6 O...

333

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2012 (EIA)

count was 1,803 as of March 21, according to data from Baker Hughes Inc. The natural gas rotary rig count totaled 326, which represents a decrease of 18 rigs from the previous...

334

Background  

NLE Websites -- All DOE Office Websites (Extended Search)

Administration, January 14, 2011 Figure 2 - Natural Gas Rig Count U.S. Natural Gas Rotary Rigs in Operation (Count) 0 400 800 1200 1600 2000 J a n - 0 7 M a r - 0 7 M a y -...

335

U.S. Energy Information Administration (EIA)  

NLE Websites -- All DOE Office Websites (Extended Search)

count was 1,809 as of March 14, according to data from Baker Hughes Inc. The natural gas rotary rig count totaled 344, which represents a decrease of 1 rig from the previous week...

336

Natural Gas Weekly Update  

NLE Websites -- All DOE Office Websites (Extended Search)

Natural Gas Rotary Rig Count Rises to Highest Level since February 2009. The natural gas rotary rig count was 992 as of Friday, August 13, according to data released by Baker...

337

Doubles counting of highly multiplying items in reflective surroundings  

SciTech Connect

When a neutrons are counted from a spontaneously fissile multiplying item in a reflecting environment the temporal behavior of the correlated signal following neutron birth is complex. At early times the signal is dominated by prompt fission events coming from spontaneous fission bursts and also from prompt fast-neutron induced fission events. At later times neutrons 'returning' from the surroundings induce fission and give rise to an additional chain of correlated events. The prompt and returning components probe the fissile and fertile constituents of the item in different ways and it is potentially beneficial to exploit this fact. In this work we look at how the two components can be represented using a linear combination of two simple functions. Fitting of the composite function to the capture time distribution represents one way of quantifying the proportion of each contribution. Another approach however is to use a dual shift register analysis where after each triggering event two coincidence gates are opened, one close to the trigger that responds preferentially to the prompt dynamics and one later in time which is more sensitive to the returning neutron induced events. To decide on the best gate positions and gate widths and also to estimate the counting precision we can use the analytical fit to work out the necessary gate utilization factors which are required in both these calculations. In this work, we develop the approach. Illustrative examples are given using spent Low Enriched Uranium (LEU) Pressurized light Water Reactor (LWR) fuel assemblies submersed in borated water and counted in a ring of {sup 3}He gas-filled proportional counters. In this case the prompt component is dominated by {sup 244}Cm spontaneous fission and induced fast neutron fission in for example {sup 238}U while the returning low energy neutrons induce fission mainly in the fissile nuclides such as {sup 239}Pu, {sup 241}Pu and {sup 235}U. One requirement is to calculate the Random Triggered Interrogation Gate Utilization Factor needed to make a priori precision estimates but not available from Monte Carlo simulation code MCNPX.

Croft, Stephen [Los Alamos National Laboratory; Evans, Louise G [Los Alamos National Laboratory; Schear, Melissa A [Los Alamos National Laboratory; Tobin, Stephen J [Los Alamos National Laboratory

2010-11-18T23:59:59.000Z

338

An integrated approach to evaluation of horizontal well prospects in the Niobrara Shale  

SciTech Connect

Integrated use of surface and subsurface geologic data, structural deformation analysis from second-derivative maps, and dimensionless type curves in identifying potential horizontal well locations in the fractured Niobrara Shale of northwest Colorado is described. The analysis included construction of detailed structure maps from surface geology with tie-ins to seismic surveys and well control and of second-derivative maps that were overlaid on production data to determine the minimum radius of curvature required for commercial production. Reservoir properties were calculated for known fields from type-curve matching with type curves for dual-porosity, anisotropic reservoirs with stress-sensitive permeability. The curves were constructed for vertical and horizontal wells by use of reservoir-simulation models. Spacing and economics of drilling horizontal Niobrara wells in northwest Colorado were evaluated. The analysis suggests that recoverable oil from the fractured Niobrara in northwest Colorado averages 1,392 bbl oil/acre on the basis of a productive fracture area identified by second derivatives of the structural surface with values > 1{times}10{sup {minus}4.5}ft{sup {minus}1}. It is also indicated that horizontal well spacing in the fractured Niobrara should be >640 acres. In some instances, it may be more economical to develop the fractured Niobrara with vertical rather than horizontal wells.

Stright, D.H. Jr. [Simtech Consulting Services Inc., Golden, CO (United States); Robertson, R.D. [Cabot Oil and Gas, Denver, CO (United States)

1995-11-01T23:59:59.000Z

339

Refined BPS state counting from Nekrasov's formula and Macdonald functions  

E-Print Network (OSTI)

It has been argued that the Nekrasov's partition function gives the generating function of refined BPS state counting in the compactification of M theory on local Calabi-Yau spaces. We show that a refined version of the topological vertex we proposed before (hep-th/0502061) is a building block of the Nekrasov's partition function with two equivariant parameters. Compared with another refined topological vertex by Iqbal-Kozcaz-Vafa (hep-th/0701156), our refined vertex is expressed entirely in terms of the specialization of the Macdonald symmetric functions which is related to the equivariant character of the Hilbert scheme of points on C^2. We provide diagrammatic rules for computing the partition function from the web diagrams appearing in geometric engineering of Yang-Mills theory with eight supercharges. Our refined vertex has a simple transformation law under the flop operation of the diagram, which suggests that homological invariants of the Hopf link are related to the Macdonald functions.

Hidetoshi Awata; Hiroaki Kanno

2009-03-10T23:59:59.000Z

340

Combining cosmological constraints from cluster counts and galaxy clustering  

E-Print Network (OSTI)

Present and future large scale surveys offer promising probes of cosmology. For example the Dark Energy Survey (DES) is forecast to detect ~300 millions galaxies and thousands clusters up to redshift ~1.3. I here show ongoing work to combine two probes of large scale structure : cluster number counts and galaxy 2-point function (in real or harmonic space). The halo model (coupled to a Halo Occupation Distribution) can be used to model the cross-covariance between these probes, and I introduce a diagrammatic method to compute easily the different terms involved. Furthermore, I compute the joint non-Gaussian likelihood, using the Gram-Charlier series. Then I show how to extend the methods of Bayesian hyperparameters to Poissonian distributions, in a first step to include them in this joint likelihood.

Lacasa, Fabien

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

Development of general inflow performance relationships (IPR's) for slanted and horizontal wells producing heterogeneous solution-gas drive reservoirs  

SciTech Connect

Since 1968, the Vogel equation has been used extensively and successfully for analyzing the inflow performance relationship (IPR) of flowing vertical wells producing by solution-gas drive. Oil well productivity can be rapidly estimated by using the Vogel IPR curve and well outflow performance. With recent interests on horizontal well technology, several empirical IPRs for solution-gas drive horizontal and slanted wells have been developed under homogeneous reservoir conditions. This report presents the development of IPRs for horizontal and slanted wells by using a special vertical/horizontal/slanted well reservoir simulator under six different reservoir and well parameters: ratio of vertical to horizontal permeability, wellbore eccentricity, stratification, perforated length, formation thickness, and heterogeneous permeability. The pressure and gas saturation distributions around the wellbore are examined. The fundamental physical behavior of inflow performance for horizontal wells is described.

Cheng, A.M.

1992-04-01T23:59:59.000Z

342

Development of an inflow performance relationship (IPR) for a slanted/horizontal well  

SciTech Connect

Since 1968, the Vogel equation has been used extensively and successfully for analyzing the inflow performance relationship (IPR) of flowing oil wells under solution-gas drive. Oil well productivity can be rapidly estimated using the Vogel IPR curve and well outflow performance. However, the Vogel curve was originally developed for conventional vertical wells and may not be valid for slanted and horizontal wells. This report presents the development of IPR's for slanted and horizontal wells by using a vertical/horizontal/slanted well reservoir simulator. The generated IPR's are found to be similar to the parabolic characteristic of the Vogel curve. Several application examples are included to illustrate the use of the newly generated curves. 12 refs., 15 figs., 25 tabs.

Cheng, A.M.

1990-03-01T23:59:59.000Z

343

Case study of a horizontal well in a layered Rotliegendes gas field  

SciTech Connect

A horizontal well was drilled in the Ravenspurn North field to drain a thin gas column above the aquifer. The field has a significant variation in reservoir quality, with most of the wells requiring stimulation by hydraulic fracturing. The reservoir is formed from a stacked sequence of aeolian dune and fluvial sandstones with a wide permeability range. The horizontal well was chosen as an alternative to stimulation by hydraulic fracturing to avoid water production from the aquifer. The well was successful, flowing at higher gas rates than expected with no water production. Production, core, and production logging data were used to demonstrate greater than expected lateral heterogeneity in the field. The horizontal well was found to be appropriate for the very specific conditions found in one part of the reservoir; however, the overall development strategy of using hydraulic fracture remains the preferred technique.

Catterall, S.J.A.; Yaliz, A. (Hamilton Oil Co. Ltd., London (United Kingdom))

1995-02-01T23:59:59.000Z

344

Chapter 7 - Horizontally Integrated Remote Measurements of Ocean Currents Using Acoustic Tomography Techniques  

Science Journals Connector (OSTI)

Abstract This chapter begins with a discussion of the comparative difficulty of measuring horizontally integrated subsurface oceanic current and vorticity measurements. This is followed by a discussion of computer-assisted tomography techniques used in the medical, geophysical, and seismic branches of science and their adaptation and extension to acoustic tomography for subsurface oceanographic investigations. In particular, the following aspects pertaining to the application of acoustic methods for probing the oceans’ interior water temperature and current structure, as well as their adaptations for measuring horizontally averaged water currents from straits, coastal water bodies, estuaries, and rivers, are addressed: (1) one-way tomography, (2) two-way tomography (reciprocal tomography), (3) acoustic tomographic measurements from straits, (4) coastal acoustic tomography (CAT), (5) river acoustic tomography (RAT), (6) acoustic tomographic measurements of vorticity, and (7) horizontally integrated current measurements using space-time acoustic scintillation analysis technique.

Antony Joseph

2014-01-01T23:59:59.000Z

345

A feasibility study on the horizontal emplacement concept in terms of operational aspects  

SciTech Connect

Based on the H12 study, two emplacement variants were initially considered - namely, vertical (in pits) and horizontal emplacement (in tunnels) in the Japanese HLW disposal programme. The horizontal emplacement design may possibly be more economical than the vertical design due to smaller excavation volume, however, several aspects such as quality assurance (QA), operational safety and logistics have been questioned. In this paper, the feasibility of the operation system for horizontal emplacement with several buffer options (e.g. bentonite block, pellets, in-situ compaction and prefabricated engineered barrier system module) is reported in terms of operational practicality, particularly logistics. The results show that the prefabricated engineered barrier system module (PEM) option could be advantageous and implemented more easily due to the much simpler emplacement process in an underground facility. (authors)

Sato, S.; Noda, M.; Matsuda, T. [Obayashi corporation, Tokyo (Japan); Sakabe, Y.; Hyodo, H.; Sugita, Y. [Nuclear Waste Management Organization of Japan (NUMO), Tokyo (Japan); Jintoku, T. [Ishikawajima-Harima Heavy Industries Co., Ltd. (IHI), Yokohama, Kanagawa (Japan)

2007-07-01T23:59:59.000Z

346

Solar: monthly and annual latitude tilt horizontal GIS data at 40km  

Open Energy Info (EERE)

latitude tilt horizontal GIS data at 40km latitude tilt horizontal GIS data at 40km resolution for Nepal from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for flat-plate collectors tilted at latitude for Nepal. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The

347

A Model For The Transient Temperature Effects Of Horizontal Fluid Flow In  

Open Energy Info (EERE)

Transient Temperature Effects Of Horizontal Fluid Flow In Transient Temperature Effects Of Horizontal Fluid Flow In Geothermal Systems Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Model For The Transient Temperature Effects Of Horizontal Fluid Flow In Geothermal Systems Details Activities (1) Areas (1) Regions (0) Abstract: A characteristic temperature versus depth (T-D) profile is observed in various geothermal environments. Particular features of the T-D profile can be explained in terms of a simple time-dependent two-dimensional (x, z) hydrothermal model. In this model a hot fluid is constrained to flow along a thin aquifer buried at a depth l from the surface with conductive heat transfer into the rocks both above and below the aquifer. In many geothermal systems transient changes in the flow

348

Method and apparatus for drilling horizontal holes in geological structures from a vertical bore  

DOE Patents (OSTI)

This invention is directed to a method and apparatus for drilling horizontal holes in geological strata from a vertical position. The geological structures intended to be penetrated in this fashion are coal seams, as for in situ gasification or methane drainage, or in oil-bearing strata for increasing the flow rate from a pre-existing well. Other possible uses for this device might be for use in the leaching of uranium ore from underground deposits or for introducing horizontal channels for water and steam injections.

Summers, David A. (Rolla, MO); Barker, Clark R. (Rolla, MO); Keith, H. Dean (Rolla, MO)

1982-01-01T23:59:59.000Z

349

Comparison of day and night vehicular speeds on horizontal curves on rural two-lane highways  

E-Print Network (OSTI)

COMPARISON OF DAY AND NIGHT VEHICULAR SPEEDS ON HORIZONTAL CURVES ON RURAL TWO-LANE HIGHWAYS A Thesis by JESUS GUZMAN, JR. Submitted to the OI5ce of Graduate Studies of Texas AkM University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 1996 Major Subject: Civil Engineering COMPARISON OF DAY AND NIGHT VEHICULAR SPEEDS ON HORIZONTAL CURVES ON RURAL TWO-LANE HIGHWAYS A Thesis by JESUS GUZMAN, JR. Submitted to Texas ARM University in partial...

Guzman, Jesus

2012-06-07T23:59:59.000Z

350

Enfim só:: um olhar sobre o universo de pessoas idosas que moram sozinhas no município de Belo Horizonte (MG), 2007.  

E-Print Network (OSTI)

??The aim of the present study was to investigate different aspects related to elderly who live alone in the city Belo Horizonte, state of Minas… (more)

Mirela Castro Santos Camargos

2008-01-01T23:59:59.000Z

351

Two-Dimensional Computational Fluid Dynamics and Conduction Simulations of Heat Transfer in Horizontal Window Frames with Internal Cavities  

E-Print Network (OSTI)

the two-dimensional heat transfer through building products.Gustavsen, A. 2001. Heat transfer in window frames withand CFD Simulations of Heat Transfer in Horizontal Window

Gustavsen, Arlid

2008-01-01T23:59:59.000Z

352

Productivity and injectivity of horizontal wells. Annual report for the period, March 10, 1994--March 9, 1995  

SciTech Connect

Contents of this annual report include the following: (1) detailed well model for reservoir simulation--task 1; (2) comparative aspects of coning behavior in vertical and horizontal wells--task 1; (3) skin factor calculations for vertical, deviated, and horizontal wells--task 2; (4) a dissipation-based coarse grid system and its application to the scaleup of two phase problems--tasks 2 and 4; (5) analyses of experiments at Marathon Oil Company--task 3; (6) development of mechanistic model for multiphase flow in horizontal wells--task 3; and (7) sensitivity studies of wellbore friction and inflow for a horizontal well--task 8.

Fayers, F.J.

1995-07-01T23:59:59.000Z

353

Arrowhead Center: Modeling Energy Market Volatility Report Title: Modeling Energy Market Volatility  

E-Print Network (OSTI)

in New Mexico 2 2 US Oil Rig Counts and WTI Spot Prices January 2000 to December 2009 7 3 US Natural Gas and Weighted Price Index 8 5 US Oil and Gas Extraction Employment and Rig Counts 8 6 Oil Rig Counts and WTI

Johnson, Eric E.

354

Build a Floating Oil Rig  

Energy.gov (U.S. Department of Energy (DOE))

The U.S. Department of the Interior's Minerals Management Service developed this teacher's guide about the many energy resources found in, over, and under the ocean. Includes sections on petroleum,...

355

Count data stochastic frontier models, with an application to the patents–R&D relationship  

Science Journals Connector (OSTI)

This article introduces a new count data stochastic frontier model that researchers can use ... patents awarded to a firm given expenditure on R&D.

Eduardo Fé; Richard Hofler

2013-06-01T23:59:59.000Z

356

True photo-counting statistics of multiple on-off detectors  

E-Print Network (OSTI)

We derive a closed photo-counting formula, including noise counts and a finite quantum efficiency, for photon number resolving detectors based on on-off detectors. It applies to detection schemes such as array detectors and multiplexing setups. The result renders it possible to compare the corresponding measured counting statistics with the true photon number statistics of arbitrary quantum states. The photo-counting formula is applied to the discrimination of photon numbers of Fock states, squeezed states, and odd coherent states. It is illustrated for coherent states that our formula is indispensable for the correct interpretation of quantum effects observed with such devices.

J. Sperling; W. Vogel; G. S. Agarwal

2012-02-23T23:59:59.000Z

357

Modeling the Number of Ignitions Following an Earthquake: Developing Prediction Limits for Overdispersed Count Data  

Energy.gov (U.S. Department of Energy (DOE))

Modeling the Number of Ignitions Following an Earthquake: Developing Prediction Limits for Overdispersed Count Data Elizabeth J. Kelly and Raymond N. Tell

358

Solar: annual average global horizontal (GHI) GIS data at 10km resolution  

Open Energy Info (EERE)

global horizontal (GHI) GIS data at 10km resolution global horizontal (GHI) GIS data at 10km resolution for Cuba from SUNY Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal flat-plate solar collectors for Cuba (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a horizontal flat-plate solar collector, such as a Photovoltaic (PV) solar panel. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 10 km by 10 km in size. The solar resource value is represented as kilowatt-hours per square meter per day for each month. The data were developed from the State University of New York's (SUNY) GOES satellite solar model. This model uses information on hourly satellite observed visible irradiance, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total of the normal or beam insolation falling on a tracking concentrator pointed

359

Response of a slotted plate flow meter to horizontal two phase flow  

E-Print Network (OSTI)

meter is always better in performance and accuracy than the standard orifice plate flow meter. This study is primarily based on how a slotted plate responds to horizontal two-phase flow with air and water being used as the working fluids. The plates...

Muralidharan, Vasanth

2005-02-17T23:59:59.000Z

360

A Low-Cost System for Measuring Horizontal Winds from Single-Engine Aircraft  

Science Journals Connector (OSTI)

The implementation and accuracy of a low-rate (~1 Hz) horizontal wind measurement system is described for a fixed-wing aircraft without modification to the airframe. The system is based on a global positioning system (GPS) compass that provides ...

Stephen A. Conley; Ian C. Faloona; Donald H. Lenschow; Anna Karion; Colm Sweeney

2014-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

Application of short-radius horizontal boreholes in the naturally fractured Yates field  

SciTech Connect

This paper discusses the performance and simulation of short-radius horizontal boreholes being used in the Marathon-operated Yates field Unit in west Texas to minimize drawdown and therefore to reduce gas and water coning in a thin oil column. Yates is a very prolific field with extensive fracturing and high-quality reservoir rock. Superimposed on a high-density orthogonal fracture network are widely spaced regional joints with a strong directional tendency. Major questions are how these directional joints affect the horizontal-well performance and whether wells should be drilled parallel or perpendicular to the joints. Dual-permeability reservoir simulation studies were performed to study optimum orientation of the borehole with respect to the natural fracture network. Additionally, optimum well-completion elevation was studied. Forty-six vertical wells have been recompleted as short-radius horizontal boreholes since 1986. The large productivity increase of the horizontal boreholes compared with the previous vertical completions indicates that the wells are intersecting the regional joints.

Gilman, J.R.; Rothkopf, B.W. (Marathon Petroleum Technology Center, Littleton, CO (United States)); Bowzer, J.L. (Marathon Oil Co., Midland, TX (United States))

1995-02-01T23:59:59.000Z

362

Productivity and injectivity of horizontal wells. Quarterly report, July 1, 1994--September 30, 1994  

SciTech Connect

This quarterly report is entirely devoted to presenting samples of the results of the data analyses for horizontal drilling studies. In addition, a data compilation of Excel worksheets containing data on two-phase flow measurements at the Marathon Oil Company is discussed. Complete data analyses will be presented in the next annual report.

Fayers, F.J.

1995-01-01T23:59:59.000Z

363

Coorelations for cresting behavior in horizontal wells. Quarterly report, October 1, 1996--December 31, 1996  

SciTech Connect

The following activities have been carried out in the last three months. (1) The fourth review meeting of the Horizontal Well Industrial Affiliates Program was held on October 10-11 at Stanford. The meeting was well attended and well received. In addition to the project presentations, a number of member presentations were also made at the meeting. (2) Draft plans for the continuation of the two-phase flow experiments were drawn up and sent to Marathon and other members for their review and comments. Series of new experiments with and without the wire wrapped screens used in 1996 are being considered for 1997. (3) Work on the application of horizontal wells for producing gas condensate reservoirs was continued. After verification of the black oil formulation, emphasis is being put on the compositional case where simulation runs have been set up to check the results against a semi-analytical solution. (4) The previous work on the effects of heterogeneities on horizontal well performance was continued and a paper on the subject was completed. Future work in this area will deal with a careful analysis of the interaction of heterogeneity and production performance. (5) Research work on developing coarse grid methods to study cresting in horizontal wells was continued. The previous correlations for optimum grid size, breakthrough time, and post breakthrough behavior (i.e., water-oil ratio) were further tested and optimized. Procedures to derive pseudo-functions either using numerical correlations or coarse grid simulations have been proposed and successfully tested.

Aziz, K.; Hewett, T.A.

1996-12-31T23:59:59.000Z

364

Effect of a horizontal magnetic field on convective instabilities in mercury  

E-Print Network (OSTI)

L-455 Effect of a horizontal magnetic field on convective instabilities in mercury S. Fauve, C on the three-dimensional instabilities which occur in a Rayleigh-Bénard experiment with mercury is studied which occur in a Rayleigh-Benard experi- ment in mercury, a low Prandtl number fluid. (The Prandtl

Boyer, Edmond

365

Drainage of a horizontal Boussinesq aquifer with a power law hydraulic conductivity profile  

E-Print Network (OSTI)

Drainage of a horizontal Boussinesq aquifer with a power law hydraulic conductivity profile David E] Solutions to the Boussinesq equation describing drainage into a fully penetrating channel have been used natural soils exhibit this characteristic. We derive a new set of analytical solutions to the Boussinesq

Selker, John

366

Productivity and injectivity of horizontal wells. Quarterly report, July 1, 1993--September 30, 1993  

SciTech Connect

A number of research activities have been carried out in the last three months. A list outlining these efforts is presented below followed by brief description of each activity in the subsequent sections of this report: (1) The available analytical solutions in the literature for steady state critical rates of horizontal wells are examined. Application of these methods to a cresting example show significant uncertainties in prediction of critical rates. (2) Sensitivity computations have been run for evaluating the effects of shale distribution on the performance of horizontal wells in heterogeneous reservoirs. (3) A number of single phase (water and oil) and two-phase (water and air) experiments have been completed in the Marathon Wellbore Model and the collected data are being analyzed. (4) A presentation of our project was given in the International Technology Forum DEA-44/67 on Horizontal, Slimhole, and Coiled Tubing, held by Maurer. (5) Our draft review report entitled ``Opportunities for Horizontal Wells and Problems in Predicting Their Performance`` has been completed.

Fayers, F.J.; Aziz, K.; Hewett, T.A.

1993-12-01T23:59:59.000Z

367

Compact fluorescent lamp using horizontal and vertical insulating septums and convective venting geometry  

DOE Patents (OSTI)

A novel design is described for a compact fluorescent lamp, including a lamp geometry which will increase light output and efficacy of the lamp in a base down operating position by providing horizontal and vertical insulating septums positioned in the ballast compartment of the lamp to provide a cooler coldspot. Selective convective venting provides additional cooling of the ballast compartment. 9 figs.

Siminovitch, M.

1998-02-10T23:59:59.000Z

368

Evolution of Red Algal Plastid Genomes: Ancient Architectures, Introns, Horizontal Gene Transfer, and  

E-Print Network (OSTI)

Evolution of Red Algal Plastid Genomes: Ancient Architectures, Introns, Horizontal Gene Transfer, Station Biologique, Roscoff, France Abstract Red algae have the most gene-rich plastid genomes known across all available red algal plastid genomes we show they all share a highly compact and slowly

Martone, Patrick T.

369

Analysis of wellbore instability in vertical, directional, and horizontal wells using field data  

E-Print Network (OSTI)

Analysis of wellbore instability in vertical, directional, and horizontal wells using field data M.A-mail addresses: mamuddin@kfupm.edu.sa (M.A. Mohiuddin), aazeez@kfupm.edu.sa (A. Abdulraheem). 0920-4105/$ - see. Mohiuddin, K. Khan, A. Abdulraheem , A. Al-Majed, M.R. Awal Center for Petroleum and Minerals, Research

Al-Majed, Abdulaziz Abdullah

370

Heat Transfer Measurements for a Horizontal Micro-Tube Using Liquid Crystal Thermography  

E-Print Network (OSTI)

62 TC02-007 Heat Transfer Measurements for a Horizontal Micro-Tube Using Liquid Crystal-tube and 1000m micro-tube. In the single-phase heat transfer experiments, the fully-developed flow heat transfer were also measured using thermocouples (TC). The results showed that the heat transfer coefficient

Ghajar, Afshin J.

371

Horizontal low-void retorting of eastern and western oil shale  

SciTech Connect

Horizontal in situ retorting processes have been developed to recover oil from thin, shallow oil shale deposits. To date the most successful field tests have been conducted in Green River oil shale located in Utah. Consideration is being given to applying this technology to the New Albany oil shales in Indiana. Western Research Institute (WRI) conducted two horizontal in situ oil shale experiments using eastern oil shale and the results are compared with results obtained from a similar experiment using Green River oil shale. The objectives of the three experiments were to simulate the horizontal retorting process and determine oil yield, retorting zone profiles and product characteristics using alternative operating conditions for eastern and western oil shales. The tests proved that horizontal retorting could be simulated in the laboratory. However, air bypass problems occurred in the experiments, which probably reduced oil recovery compared with recovery from field tests. During the eastern oil shale tests plugging was encountered in the gas recovery system because of the production of a solid material containing sulfur compounds. This plugging could be a potential problem for future laboratory and field experimentation. The oil produced from eastern oil shale has different properties from western shale oil. The oil is highly aromatic and when hydrogenated may yield a prototype high density jet fuel. 10 refs., 8 figs., 11 tabs.

Fahy, L.J.

1986-02-01T23:59:59.000Z

372

The Impact of Horizontal Model Grid Resolution on the Boundary Layer Structure over an Idealized Valley  

Science Journals Connector (OSTI)

The role of horizontal model grid resolution on the development of the daytime boundary layer over mountainous terrain is studied. A simple idealized valley topography with a cross-valley width of 20 km, a valley depth of 1.5 km, and a constant ...

Johannes S. Wagner; Alexander Gohm; Mathias W. Rotach

2014-09-01T23:59:59.000Z

373

Low-drag electrical contact arrangement for maintaining continuity between horizontally movable members  

DOE Patents (OSTI)

This invention is a low-drag electrical contact arrangement for establishing continuity between upper and lower spaced members which are subject to relative horizontal movement. In one aspect, the invention comprises an electrical commutating arrangement which includes a horizontally disposed linear electrical commutator. A horizontally movable electrically conductive pedestal is positioned below the commutator and defines a clearance therewith. The pedestal is formed with a cavity confronting the commutator. In the cavity is a bead of electrical conductive liquid, the bead being characterized by an upwardly convex meniscus portion which extends across the clearance and contacts the commutator. The surface tension of the bead is sufficient to maintain the bead intact when the commutator and pedestal are displaced horizontally at speeds from zero to at least twelve inches a minute. This arrangement provides a significant advance in highly precise machining processes, such as diamond-turning, where precision is limited by the drag imposed by conventional commutators of the carbon-brush type.

Brown, R. Jack (Clinton, TN); Gerth, Howard L. (Knoxville, TN); Robinson, Samuel C. (Clinton, TN)

1982-01-01T23:59:59.000Z

374

Low-drag electrical-contact arrangement for maintaining continuity between horizontally movable members  

DOE Patents (OSTI)

This invention is a low-drag electrical contact arrangement for establishing continuity between upper and lower spaced members which are subject to relative horizontal movement. In one aspect, the invention comprises an electrical commutating arrangement which includes a horizontally disposed linear electrical commutator. A horizontally movable electrically conductive pedestal is positioned below the commutator and defines a clearance therewith. The pedestal is formed with a cavity confronting the commutator. In the cavity is a bead of electrical conductive liquid, the bead being characterized by an upwardly convex meniscus portion which extends across the clearance and contacts the commutator. The surface tension of the bead is sufficient to maintain the bead intact when the commutator and pedestal are displaced horizontally at speeds from zero to at least twelve inches a minute. This arrangement provides a significant advance in highly precise machining processes, such as diamond-turning, where precision is limited by the drag imposed by conventional commutators of the carbon-brush type.

Brown, R.J.; Gerth, H.L.; Robinson, S.C.

1981-01-23T23:59:59.000Z

375

A Comparison of Vehicle Speed at Day and Night Rural Horizontal Curves  

E-Print Network (OSTI)

This thesis documents the linear mixed model developed for vehicle speed along two-lane two-way rural horizontal curves in the outside lane. Speed data at each curve was collected at four points along the curve including the midpoint of the curve...

Quaium, Ridwan B.

2010-07-14T23:59:59.000Z

376

Hydraulic Fracturing and Horizontal Gas Well Drilling Reference List Updated December 7, 2011  

E-Print Network (OSTI)

Hydraulic Fracturing and Horizontal Gas Well Drilling Reference List Updated December 7, 2011 of Hydraulic Fracturing in the Shale Plays (2010). Tudor Pickering Holt & Co with Reservoir Research Partners, with a thoughtful discussion Plan to Study the Potential Impacts of Hydraulic Fracturing on Drinking Water Resources

Manning, Sturt

377

Hydraulic Fracturing and Horizontal Gas Well Drilling Reference List Updated June 23, 2011  

E-Print Network (OSTI)

Hydraulic Fracturing and Horizontal Gas Well Drilling Reference List Updated June 23, 2011 of Hydraulic Fracturing in the Shale Plays (2010). Tudor Pickering Holt & Co with Reservoir Research Partners, with a thoughtful discussion Draft Plan to Study the Potential Impacts of Hydraulic Fracturing on Drinking Water

378

From Green to Red: Horizontal Gene Transfer of the Phycoerythrin Gene Cluster between Planktothrix Strains  

Science Journals Connector (OSTI)

...Evolutionary and Genomic Microbiology From Green to Red: Horizontal Gene Transfer of the...phycoerythrin, which are responsible for green and red appearance, respectively. Sequence...that is otherwise more closely related to green strains. Our data show that the insertion...

Ave Tooming-Klunderud; Hanne Sogge; Trine Ballestad Rounge; Alexander J. Nederbragt; Karin Lagesen; Gernot Glöckner; Paul K. Hayes; Thomas Rohrlack; Kjetill S. Jakobsen

2013-08-30T23:59:59.000Z

379

Colloidal electroconvection in a thin horizontal cell: II. Bulk electroconvection of water during parallelplate electrolysis  

E-Print Network (OSTI)

Colloidal electroconvection in a thin horizontal cell: II. Bulk electroconvection of water during parallel­plate electrolysis Yilong Han Department of Physics and Astronomy, University of Pennsylvania 209, they appear to result from an underlying electroconvective instability during electrolysis in the parallel

Grier, David

380

Colloidal electroconvection in a thin horizontal cell: II. Bulk electroconvection of water during parallelplate electrolysis  

E-Print Network (OSTI)

Colloidal electroconvection in a thin horizontal cell: II. Bulk electroconvection of water during parallel­plate electrolysis Yilong Han Department of Physics and Astronomy, University of Pennsylvania 209 electrolysis in the parallel plate geometry. This contrasts with recent theoretical results suggesting

Grier, David

Note: This page contains sample records for the topic "horizontal rig count" 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

A parametric study on the benefits of drilling horizontal and multilateral wells in coalbed methane reservoirs  

SciTech Connect

Recent years have witnessed a renewed interest in development of coalbed methane (CBM) reservoirs. Optimizing CBM production is of interest to many operators. Drilling horizontal and multilateral wells is gaining Popularity in many different coalbed reservoirs, with varying results. This study concentrates on variations of horizontal and multilateral-well configurations and their potential benefits. In this study, horizontal and several multilateral drilling patterns for CBM reservoirs are studied. The reservoir parameters that have been studied include gas content, permeability, and desorption characteristics. Net present value (NPV) has been used as the yard stick for comparing different drilling configurations. Configurations that have been investigated are single-, dual-, tri-, and quad-lateral wells along with fishbone (also known as pinnate) wells. In these configurations, the total length of horizontal wells and the spacing between laterals (SBL) have been studied. It was determined that in the cases that have been studied in this paper (all other circumstances being equal), quadlateral wells are the optimum well configuration.

Maricic, N.; Mohaghegh, S.D.; Artun, E. [Chevron Energy Technology Co., Houston, TX (USA)

2008-12-15T23:59:59.000Z

382

Productivity and injectivity of horizontal wells. Annual report, March 10, 1996--March 9, 1997  

SciTech Connect

Progress is reported on the following tasks: advanced modeling of horizontal wells; heterogeneous effects of reservoirs; development of improved methods for calculating multi-phase pressure drops within the wellbore; pseudo-functions; development of multi-well models;testing of HW models with field examples; enhanced oil recovery applications; and application studies and their optimization.

Aziz, K.; Hewett, T.A.; Arbabi, S.; Smith, M.

1997-06-01T23:59:59.000Z

383

Horizontal Directional Drilling: A Green and Sustainable Technology for Site Remediation  

Science Journals Connector (OSTI)

Horizontal Directional Drilling: A Green and Sustainable Technology for Site Remediation ... Although a host of innovative technologies exist to treat contaminated soil and groundwater, constructing them in the field continues to rely on age-old, conventional methods: vertical drilling or excavation. ...

Michael D. Lubrecht; LG

2012-01-24T23:59:59.000Z

384

Horizontal transmission of the insect symbiont Rickettsia is plant-mediated  

Science Journals Connector (OSTI)

...transmitted through this route. Although in their...that study, horizontal transmission of Rickettsia was not...ground may serve as a route by which Rickettsia...frequency of interspecific transmission will require an understanding...of 14 L : 10 D. The lines used in the experiments...

2012-01-01T23:59:59.000Z

385

THE DEVIL’S STAIRCASE DIMENSIONS AND MEASURE-THEORETICAL ENTROPY OF MAPS WITH HORIZONTAL GAP  

E-Print Network (OSTI)

Abstract. This work elucidates the measure-theoretical entropy and dimensions of a unimodal map with a horizontal gap. The measure-theoretical entropy and dimensions of the Ft (which is defined later)are shown to form a devil’s staircase structure with respect to the gap size t. Pesin’s formula for gap maps is also considered. 1.

Jung-chao Ban; Song-sun Lin

386

Whole-body counting in the Marshall Islands  

SciTech Connect

In 1978 the Marshall Islands Radiological Safety Program was organized to perform radiation measurements and assess radiation doses for the people of the Bikini, Enewetak, Rongelap and Utirik Atolls. One of the major field components of this program is whole- body counting (WBC). WBC is used to monitor the quantity of gamma- emitting radionuclides present in individuals. A primary objective of the program was to establish {sup 137}Cesium body contents among the Enewetak, Rongelap and Utirik populations. {sup 137}Cs was the only gamma-emitting fission radionuclide detected in the 1,967 persons monitored. {sup 137}Cs body burdens tended to increase with age for both sexes, and were higher in males. The average {sup 137}Cs dose Annual Effective Dose for the three populations was as follows: For Enewetak, the dose was 22{+-}4 {mu}Sv. For Utirik, the dose was 33{+-} 3 {mu}Sv. Since 1985 the Rongelap people have been self-exiled to Mejatto. Biological elimination should have reduced their dose to virtually zero, and the measured dose was 2{+-}2 {mu}Sv. If they had remained on Rongelap Island, the calculated dose would have been 99 {mu}Sv, which is about one-third of the background dose. 7 refs., 1 tab. (MHB)

Sun, L.C.; Clinton, J.; Kaplan, E.; Meinhold, C.B.

1991-01-01T23:59:59.000Z

387

Enhancements of the rack counting invariant via N-reduced dynamical cocycles  

E-Print Network (OSTI)

We introduce the notion of N-reduced dynamical cocycles and use these objects to define enhancements of the rack counting invariant for classical and virtual knots and links. We provide examples to show that the new invariants are not determined by the rack counting invariant, the Jones polynomial or the generalized Alexander polynomial.

Crans, Alissa S; Sarkar, Aparna

2011-01-01T23:59:59.000Z

388

AACR Cancer Progress Report 2012 Making Research Count for Patients: A New Day  

E-Print Network (OSTI)

AACR Cancer Progress Report 2012 Making Research Count for Patients: A New Day www.cancerprogressreport.org · www.aacr.org #12;AACR Cancer Progress Report 2012 Making Research Count for Patients: A New Day www.cancerprogressreport.org · www.aacr.org Also published as: American Association for Cancer Research. AACR cancer progress report

Sherman, S. Murray

389

Forecasting a Moving Target: Ensemble Models for ILI Case Count Predictions Prithwish Chakraborty  

E-Print Network (OSTI)

with official flu estimates. We also compare the prediction accuracy between model-level fusion of differentForecasting a Moving Target: Ensemble Models for ILI Case Count Predictions Prithwish Chakraborty using neighbor- hood embedding to predict flu case counts. Comparing our proposed ensemble method

Ryder, Barbara G.

390

A two-stage model for incidence and prevalence in point-level spatial count data  

E-Print Network (OSTI)

A two-stage model for incidence and prevalence in point-level spatial count data Virginia Recta about the underlying data generating process. We utilize a two-stage spatial generalized linear mixed and real data from an ecological field survey. 1 Introduction Spatial count data arise frequently

Haran, Murali

391

Automated Design of Digital Microfluidic Lab-on-Chip under Pin-Count Constraints  

E-Print Network (OSTI)

-count-constrained biochips. The first design procedure relies on a droplet-trace-based array partitioning scheme-referencing, Lab-on-Chip, Microfluidics, Pin-count constraints 1. INTRODUCTION Microfluidics technology has made great strides in recent years [1-6]. Promising applications of this emerging technology include high

Chakrabarty, Krishnendu

392

COUNTING DESCENTS, RISES, AND LEVELS, WITH PRESCRIBED FIRST ELEMENT, IN WORDS  

E-Print Network (OSTI)

COUNTING DESCENTS, RISES, AND LEVELS, WITH PRESCRIBED FIRST ELEMENT, IN WORDS Sergey Kitaev1 the distribution of descents, levels, and rises according to whether the first letter of the descent, rise 0654060 1 #12;2 COUNTING DESCENTS, RISES, AND LEVELS, WITH PRESCRIBED FIRST ELEMENT, IN WORDS Subsequently

Kitaev, Sergey

393

AN EXAMINATION OF BICYCLE COUNTS AND SPEEDS ASSOCIATED WITH THE INSTALLATION OF BIKE LANES  

E-Print Network (OSTI)

AN EXAMINATION OF BICYCLE COUNTS AND SPEEDS ASSOCIATED WITH THE INSTALLATION OF BIKE LANES IN ST An Examination of Bicycle Counts and Speeds Associated with the Installation of Bike Lanes in St. Petersburg It is assumed that installation of bicycle facilities will result in an increase in the number of bicyclists

North Carolina at Chapel Hill, University of

394

Fast Counting of Triangles in Large Real Networks: Algorithms and Laws  

E-Print Network (OSTI)

to the vast machin- ery of eigenvalue algorithms and fine-tunings. Eigen- values can be easily computed. In this paper, we provide two algorithms, the Eigen- Triangle for counting the total number of triangles in a graph, and the EigenTriangleLocal algorithm that gives the count of triangles that contain a desired

Megalooikonomou, Vasilis

395

The counting of naturally occuring radiocarbon in the form of benzene in a liquid scintillation counter  

Science Journals Connector (OSTI)

A counting system is described for C14 dating with a benzene scintillator solution. The single photomultiplier counter used is relatively simple and reliable. Different sizes and forms of the counting solution containers were investigated. A 6 ml cell with a background of 4?0 counts/min and a 45 per cent detection efficiency is recommended for routine C14 dating. A 60 ml cell with a background of 14?6 counts/min and a 45 per cent detection efficiency is capable of dating samples as old as 57,500 years (4 ? statistics, 48 hr counting). The calibration and operation of the counter is discussed. On comparison with standard gas counter methods, it is suggested that routine C14 dating by the benzene method is preferable in those cases where the laboratory personnel are more skilled in chemical manipulations than electronic technique.

C. Leger; M.A. Tamers

1963-01-01T23:59:59.000Z

396

Solar: monthly and annual average global horizontal irradiance GIS data at  

Open Energy Info (EERE)

irradiance GIS data at irradiance GIS data at one-degree resolution of the World from NASA/SSE Dataset Summary Description (Abstract): Global Horizontal IrradianceNASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Jan 2008)22-year Monthly & Annual Average (July 1983 - June 2005) Parameter: Insolation Incident On A Horizontal Surface (kWh/m^2/day) Internet: http://eosweb.larc.nasa.gov/sse/ Note 1: SSE Methodology & Accuracy sections online Note 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; positive values are north and east. Boundaries of the -90/-180 region are -90 to -89 (south) and -180 to -179 (west). The last region, 89/180, is bounded by 89 to 90 (north) and 179 to 180 (east). The mid-point of

397

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Nepal from NREL Nepal from NREL Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for Nepal. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

398

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Ghana from NREL Ghana from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal flat-plate collectors for Ghana. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

399

ANL/APS/TB-32 Test of Horizontal Field Measurements Using Two-Axis Hall  

NLE Websites -- All DOE Office Websites (Extended Search)

2 2 Test of Horizontal Field Measurements Using Two-Axis Hall Probes at the APS Magnetic Measurement Facility I. Vasserman Advanced Photon Source Argonne National Laboratory Argonne, IL 60439 1. Introduction The free-electron laser (FEL) project at the Advanced Photon Source (APS) will use a 400-MeV particle beam from the APS linac with RMS beam transverse size of 100 µm and requires very high performance of the insertion devices in order to achieve high intensity radiation. Averaged over period, the trajectory must deviate from the ideal on-axis trajectory by not more than 10% of the RMS beam size. Meaning that the second field integral should be straight within ±1300 G-cm 2 over the length of the device for both horizontal and vertical directions for the 400-MeV particle

400

Solar: monthly global horizontal (GHI) GIS data at 10km resolution for  

Open Energy Info (EERE)

Central America from SUNY Central America from SUNY Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal flat-plate solar collectors for Central America (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a horizontal flat-plate solar collector, such as a Photovoltaic (PV) solar panel. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 10 km by 10 km in size. The solar resource value is represented as kilowatt-hours per square meter per day for each month. The data were developed from the State University of New York's (SUNY) GOES satellite solar model.

Note: This page contains sample records for the topic "horizontal rig count" 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

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Brazil from NREL Brazil from NREL Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for Brazil. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

402

Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance  

SciTech Connect

This final report describes the progress during the six year of the project on ''Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance.'' This report is funded under the Department of Energy's (DOE's) Class I program which is targeted towards improving the reservoir performance of mature oil fields located in fluvially-dominated deltaic deposits. The project involves using an integrated approach to characterize the reservoir followed by drilling of horizontal injection wells to improve production performance. The project was divided into two budget periods. In the first budget period, many modern technologies were used to develop a detailed reservoir management plan; whereas, in the second budget period, conventional data was used to develop a reservoir management plan. The idea was to determine the cost effectiveness of various technologies in improving the performance of mature oil fields.

Kelkar, Mohan; Liner, Chris; Kerr, Dennis

1999-10-15T23:59:59.000Z

403

Fracturing pressures and near-well fracture geometry of arbitrarily oriented and horizontal wells  

SciTech Connect

The hydraulic fracturing of arbitrarily oriented and horizontal wells is made challenging by the far more complicated near-well fracture geometry compared to that of conventional vertical wells. This geometry is important both for hydraulic fracture propagation and the subsequent post-treatment well performance. Fracture tortuosity of arbitrarily oriented and horizontal wells is likely to cause large initiation pressures and reduction in the fracture widths. This paper presents a comprehensive study of the effects of important variables, including the principal stresses, wellbore orientation, and perforation configuration on fracture geometry. Initiation pressures, the contact between arbitrarily oriented wells and the fracture plane, and the near-well fracture geometry are determined and discussed. This study also shows that because of the near-well stress concentration the fracture width at the wellbore is always smaller than the maximum fracture width. This can have important consequences during hydraulic fracturing.

Chen, Z.; Economides, M.J.

1995-12-31T23:59:59.000Z

404

Shallow oil production using horizontal wells with enhanced oil recovery techniques  

SciTech Connect

Millions of barrels of oil exist in the Bartlesville formation throughout Oklahoma, Kansas, and Missouri. In an attempt to demonstrate that these shallow heavy oil deposits can be recovered, a field project was undertaken to determine the effectiveness of enhanced oil recovery techniques (EOR) employing horizontal wells. Process screening results suggested that thermal EOR processes were best suited for the recovery of this heavy oil. Screening criteria suggested that in situ combustion was a viable technique for the production of these reserves. Laboratory combustion tube tests confirmed that sufficient amounts of fuel could be deposited. The results of the in situ combustion field pilot were disappointing. A total overall recovery efficiency of only 16.0 percent was achieved. Results suggest that the combustion front might have moved past the horizontal well, however elevated temperatures or crude upgrading were not observed. Factors contributing to the lack of production are also discussed.

Satchwell, R.M.; Johnson, L.A. Jr. [Western Research Institute, Laramie, WY (United States); Trent, R. [Univ. of Alaska, Fairbanks, AK (United States)

1995-02-01T23:59:59.000Z

405

Striking Photospheric Abundance Anomalies in Blue Horizontal-Branch Stars in Globular Cluster M13  

E-Print Network (OSTI)

High-resolution optical spectra of thirteen blue horizontal-branch (BHB) stars in the globular cluster M13 show enormous deviations in element abundances from the expected cluster metallicity. In the hotter stars (T_eff > 12000 K), helium is depleted by factors of 10 to 100 below solar, while iron is enhanced to three times the solar abundance, two orders of magnitude above the canonical metallicity [Fe/H] ~= -1.5 dex for this globular cluster. Nitrogen, phosphorus, and chromium exhibit even more pronounced enhancements, and other metals are also mildly overabundant, with the exception of magnesium, which stays very near the expected cluster metallicity. These photospheric anomalies are most likely due to diffusion --- gravitational settling of helium, and radiative levitation of the other elements --- in the stable radiative atmospheres of these hot stars. The effects of these mechanisms may have some impact on the photometric morphology of the cluster's horizontal branch and on estimates of its age and distance.

Bradford B. Behr; Judith G. Cohen; James K. McCarthy; S. George Djorgovski

1999-03-29T23:59:59.000Z

406

Evaluation of target reservoirs for horizontal drilling: Lower Glen Rose Formation, South Texas  

SciTech Connect

The primary objective of this project is to test the hypothesis that a horizontally drilled borehole can increase gas production sufficiently from the Lower Glen Rose Formation to provide an economic advantage over conventional vertical drilling. Additional objectives are to conduct detailed investigations of reservoir properties and completion methods. This paper presents preliminary results of a project, co-funded by PrimeEnergy and the United States Department of Energy (DOE), to assess the economic viability of horizontal drilling in the Lower Glen Rose Formation of Maverick County, Texas. This project is part of an ongoing DOE investigation of directional drilling in the development of tight gas resources within the United States. This paper builds on data presented in Muncey (1992) with data from two vertical tests of the Lower Glen Rose Formation, both drilled in 1993, and the analysis of approximately 20 line-miles of high-resolution seismic data recorded in 1992 and 1993.

Muncey, G.; Drimal, C.E. Jr.

1993-12-31T23:59:59.000Z

407

Heat transfer to a horizontal cylinder in a shallow bubble column  

Science Journals Connector (OSTI)

Abstract Heat transfer coefficient correlations for tall bubble columns are unable to predict heat transfer in shallow bubble columns, which have unique geometry and fluid dynamics. In this work, the heat transfer coefficient is measured on the surface of a horizontal cylinder immersed in a shallow air–water bubble column. Superficial velocity, liquid depth, and cylinder height and horizontal position with respect to the sparger orifices are varied. The heat transfer coefficient is found to increase with height until reaching a critical height, and a dimensionless, semi-theoretical correlation is developed that incorporates superficial velocity, liquid properties, and height. Additionally, the more minor effects of flow regime, column region, and bubble impact are discussed. Notably, the heat transfer coefficient can be as high in the region of bubble coalescence as in the bulk of the column, but only if bubbles impact the cylinder. The correlation and discussion provide a framework for modeling and designing shallow, coil-cooled bubble columns.

Emily W. Tow; John H. Lienhard V

2014-01-01T23:59:59.000Z

408

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Kenya from NREL Kenya from NREL Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for Kenya. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

409

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Sri Lanka from NREL Sri Lanka from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal flat-plate collectors, for Sri Lanka (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

410

Solar: monthly global horizontal (GHI) GIS data at 40km resolution for  

Open Energy Info (EERE)

40km resolution for 40km resolution for Bangladesh from NREL Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for Bangladesh. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

411

The 2 to 24 micron source counts from the AKARI North Ecliptic Pole survey  

E-Print Network (OSTI)

We present herein galaxy number counts of the nine bands in the 2-24 micron range on the basis of the AKARI North Ecliptic Pole (NEP) surveys. The number counts are derived from NEP-deep and NEP-wide surveys, which cover areas of 0.5 and 5.8 deg2, respectively. To produce reliable number counts, the sources were extracted from recently updated images. Completeness and difference between observed and intrinsic magnitudes were corrected by Monte Carlo simulation. Stellar counts were subtracted by using the stellar fraction estimated from optical data. The resultant source counts are given down to the 80% completeness limit; 0.18, 0.16, 0.10, 0.05, 0.06, 0.10, 0.15, 0.16, and 0.44 mJy in the 2.4, 3.2, 4.1, 7, 9, 11, 15, 18 and 24 um bands, respectively. On the bright side of all bands, the count distribution is flat, consistent with the Euclidean Universe, while on the faint side, the counts deviate, suggesting that the galaxy population of the distant universe is evolving. These results are generally consistent...

Murata, K; Goto, T; Kim, S J; Matsuhara, H; Wada, T

2014-01-01T23:59:59.000Z

412

Using borehole images for target-zone evaluation in horizontal wells  

SciTech Connect

Horizontal wells are rarely horizontal. Instead, operators commonly try to drill such wells into particular rock layers, or target zones, which may or may not be truly horizontal. Thicknesses of target zones commonly range from a few feet to a few tens of feet (1-10 m). Target-zone evaluation concerns whether a horizontal well was successfully located and drilled in a given rock layer. Borehole-imaging logs provide a powerful tool for stratigraphic interpretation and target-zone evaluation in the Austin Chalk, Niobrara Formation, San Andres Formation, and other units. This study uses borehole images generated by Schlumberger's Formation MicroScanner (FMS), a microconductivity logging device. Open fractures and clay-rich interbeds appear as dark, high-conductivity tracers on the FMS log. These traces can be fit with sinusoidal curves and oriented on a computer workstation. The shape of the sinusoidal curve that fits a particular bedding plane tells the interpreter whether the borehole was moving upward or downward through the strata. STRATLOG (trademark of Sierra Geophysics, Inc., a Halliburton Company) software has been used to display borehole profiles by combining FMS data on fracture intensities and bedding-plane intersections with gamma-ray logs, mud logs, and borehole-deviation surveys. To aid in planning future wells, multiple penetrations of the same horizon can be detected and used to calculate highly accurate bedding-plane dips. Fault interpretation, including the detection of rollover beds, it also possible. Finally, stratigraphic interpretation can be combined with observed fractures to determine which rock layers are most highly fractured, and, therefore, should be target zones.9 refs., 5 figs.

Hurley, N.F.; Carlson, J.L. (Marathon Oil Company, Littleton, CO (United States)); Thorn, D.R. (Schlumberger Well Services, Aurora (Colombia)); Eichelberger, L.W. (Marathon Oil Company, Tyler, TX (United States))

1994-02-01T23:59:59.000Z

413

Test instructions for the horizontal borehole demonstration at the Near-Surface Test Facility  

SciTech Connect

This test outlines the planned activities designed to demonstrate the horizontal borehole drilling and testing operations at the Near Surface Test Facility prior to the performance of these methods within the Exploratory Shaft underground facility. This document will also lead to establishing the operating and safety procedures which will be implemented in the Exploratory Shaft long exploratory borehole drilling and testing program. 7 refs., 3 figs., 1 tab.

McLellan, G.W. (Rockwell International Corp., Richland, WA (USA). Energy Systems Group)

1984-03-01T23:59:59.000Z

414

Productivity and injectivity of horizontal wells. Annual report, March 10, 1993--March 9, 1994  

SciTech Connect

In this report, the investigators review a range of reservoir scenarios in which horizontal wells can be advantageous and discuss some of the modeling problems associated with calculating well connection factors, productivity indices, coning behavior and well two-phase pressure drops. We show illustrative coning calculations and the implications of the well model on distribution of post-breakthrough gas saturations. Such calculations then open up the possibility of determining optimal recompletion strategies and/or additional hydraulic fracturing.

Fayers, F.J.; Aziz, K.; Hewett, T.A.; Arbabi, S.

1994-10-01T23:59:59.000Z

415

Termination for a superconducting power transmission line including a horizontal cryogenic bushing  

DOE Patents (OSTI)

A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminates the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

Minati, Kurt F. (Northport, NY); Morgan, Gerry H. (Patchogue, NY); McNerney, Andrew J. (Shoreham, NY); Schauer, Felix (Upton, NY)

1984-01-01T23:59:59.000Z

416

Anais XI SBSR, Belo Horizonte, Brasil, 05 -10 abril 2003, INPE, p. 2193 -2200. MAPSAR: A NEW L-BAND SPACEBORNE SAR MISSION FOR ASSESSMENT  

E-Print Network (OSTI)

Anais XI SBSR, Belo Horizonte, Brasil, 05 - 10 abril 2003, INPE, p. 2193 - 2200. 2193 MAPSAR: A NEW the 9 7 38 4 #12;Anais XI SBSR, Belo Horizonte, Brasil, 05 - 10 abril 2003, INPE, p. 2193 - 2200. 2194

Domingues, Margarete Oliveira

417

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

China from NREL China from NREL Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for China. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to the model. The local cloud cover can vary significantly even within a single grid cell as a result of terrain effects and other microclimate influences. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

418

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Mexico, Central America, and the Caribbean Islands from NREL Mexico, Central America, and the Caribbean Islands from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal flat-plate collectors, for Mexico, Central America, and the Caribbean Islands. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to the model. The local cloud cover can vary significantly even within a single grid cell as a result of terrain effects and other microclimate

419

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Ethiopia from NREL Ethiopia from NREL Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for Ethiopia. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to the

420

Nutrient removal efficiency and resource economics of vertical flow and horizontal flow constructed wetlands  

Science Journals Connector (OSTI)

In order to reduce the very high costs of sewage disposal in the new federal states of Germany, more decentralized purification systems need to be established. To attain higher surface water quality, and thereby the acceptance of such systems by governmental authorities, good removal rates for organic substances and also for nutrients (N, P) are necessary. Constructed wetlands for wastewater treatment (reed-bed systems) in Germany and in the USA have been used successfully. This study compares the purification performances of constructed horizontal flow wetlands (HFW) and vertical flow wetlands (VFW), including: (1) a small horizontal flow wetland (HFW); (2) a sloped HFW; (3) a larger HFW; (4) a stratified vertical flow wetland (VFW); and (5) an unstratified VFW. It is shown that both the horizontal flow and vertical flow systems can remove more than 90% of organic load and of total N and P, if there is an effective precleaning step, and if the specific treatment area is great enough (>50 m2/m3 per d). \\{HFWs\\} have an advantage in long-term removal of P because it is bound to organic substances to a high degree. Decentral and semicentral natural treatment systems also save material (76%) and energy (83%) for their function compared with central technical systems.

Volker Luederitz; Elke Eckert; Martina Lange-Weber; Andreas Lange; Richard M Gersberg

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

A numerical investigation of natural convection heat transfer within horizontal spent-fuel assemblies  

SciTech Connect

A numerical investigation of natural convection heat transfer is carried out for a single, horizontal, spent-fuel assembly in an environment typical of spent-fuel transportation systems as well as some dry storage/disposal scenarios. The objective is to predict computationally the convective heat transfer trends for horizontal spent fuel and to compare the results to data taken in a supporting experimental effort. The predicted data consist of thermal and flow fields throughout the assembly for a wide range of Rayleigh number, as well as numerically obtained Nusselt-number data that are correlated as a function of Rayleigh number. Both laminar and turbulent approaches are examined for a Boussinesq fluid with Pr = 0.7. The data predict the existence of a conduction-dominated regime, a transition regime, and a convection regime. Compared with the laminar approach, a significant improvement in the predicted Nusselt number is obtained for large Rayleigh numbers when a turbulence model is employed. This lends additional support to the experimental evidence that a transition to turbulent flow occurs for Rayleigh numbers greater than 10{sup 7}. Overall, the numerically predicted heat transfer trends compare well with previously obtained experimental data, and the computed assembly Nusselt numbers generally reside within the range of experimental uncertainty. The predicted thermal and flow fields further provide a numerical flow visualization capability that enhances the understanding of natural convection in horizontal spent fuel and allows improved physical interpretation of the experimental data.

Canaan, R.E. [Lawrence Livermore National Lab., CA (United States); Klein, D.E. [Univ. of Texas System, Austin, TX (United States)

1998-08-01T23:59:59.000Z

422

Drilling fluid technology for horizontal wells to protect the formations in unconsolidated sandstone heavy oil reservoirs  

Science Journals Connector (OSTI)

Major factors that cause damage in drilling in unconsolidated sandstone heavy oil reservoirs include: invasion of solids in drilling fluid, incompatibility between the liquid phase of drilling fluid and crude oil, and hydration and expansion of reservoir clay minerals. Therefore, a solid-free weak gel drilling fluid system for horizontal wells to protect the formations was developed that contains seawater + 0.1%–0.2% NaOH + 0.2% Na2CO3+ 0.7% VIS + 2.0% FLO + 2.0% JLX, weighed with \\{KCl\\} or sodium formate. The drilling fluid system has unique rheological properties, temporally independent gel strength, and excellent lubricating and inhibition performance. It is compatible with formation fluids, it not only meets the needs of horizontal well drilling, but also effectively protects the reservoir. The technique is well performed in tens of horizontal wells in offshore oilfields, such as WC13-1, BZ34-1, NP35-2, and BZ25-1 oilfields.

Yue Qiansheng; Liu Shujie; Xiang Xingjin

2010-01-01T23:59:59.000Z

423

Method for explosive expansion toward horizontal free faces for forming an in situ oil shale retort  

DOE Patents (OSTI)

Formation is excavated from within a retort site in formation containing oil shale for forming a plurality of vertically spaced apart voids extending horizontally across different levels of the retort site, leaving a separate zone of unfragmented formation between each pair of adjacent voids. Explosive is placed in each zone, and such explosive is detonated in a single round for forming an in situ retort containing a fragmented permeable mass of formation particles containing oil shale. The same amount of formation is explosively expanded upwardly and downwardly toward each void. A horizontal void excavated at a production level has a smaller horizontal cross-sectional area than a void excavated at a lower level of the retort site immediately above the production level void. Explosive in a first group of vertical blast holes is detonated for explosively expanding formation downwardly toward the lower void, and explosive in a second group of vertical blast holes is detonated in the same round for explosively expanding formation upwardly toward the lower void and downwardly toward the production level void for forming a generally T-shaped bottom of the fragmented mass.

Ricketts, Thomas E. (Bakersfield, CA)

1980-01-01T23:59:59.000Z

424

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

SciTech Connect

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

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

1989-08-01T23:59:59.000Z

425

Integrated approach towards the application of horizontal wells to improve waterflooding performance. Annual report  

SciTech Connect

This annual report describes the progress during the second year of the project on Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance. This project is funded under the Department of Energy`s Class I program which is targeted towards improving the reservoir performance of mature oil fields located in fluvial-dominated deltaic deposits. The project involves an integrated approach to characterize the reservoir followed by the drilling of horizontal injection wells to improve production performance. The type of data we have integrated include cross bore hole seismic surveys, geological interpretation based on logs and cores, and engineering information. This report covers the second phase of the project which includes a detailed reservoir description of the field by integrating all the available information, followed by flow simulation of the Self Unit under various operating conditions. Based on an examination of the various operating parameters, we observed that the best possible solution to improve the Self Unit performance is to recomplete and stimulate most of the wells followed by an increase in the water injection rate. Drilling of horizontal injection well, although helpful in improving the performance, was not found to be economically feasible. The proposed reservoir management plan will be implemented shortly.

Kelkar, M.; Liner, C.; Kerr, D.

1995-05-01T23:59:59.000Z

426

,"U.S. Natural Gas Number of Underground Storage Acquifers Capacity (Count)"  

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

Acquifers Capacity (Count)" Acquifers Capacity (Count)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Natural Gas Number of Underground Storage Acquifers Capacity (Count)",1,"Annual",2012 ,"Release Date:","12/12/2013" ,"Next Release Date:","1/7/2014" ,"Excel File Name:","na1392_nus_8a.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/na1392_nus_8a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"12/12/2013 5:43:23 PM"

427

Grade Assignments for Models Used for Calibration of Gross-Count Gamma-Ray Logging Systems (December 1983)  

Energy.gov (U.S. Department of Energy (DOE))

Grade Assignments for Models Used for Calibration of Gross-Count Gamma-Ray Logging Systems (December 1983)

428

Prediction of lateral variability in fracture intensity using multicomponent shear-wave surface seismic as a precursor to horizontal drilling in the Austin Chalk  

Science Journals Connector (OSTI)

......represents the horizontal borehole. The open square boxes on the horizontal borehole are mudlogger determined...lines intersecting the borehole represent fractures...measurable, even if y is large. However, the differencein...support of a horizontal drilling program. This method......

Michael C. Mueller

1991-12-01T23:59:59.000Z

429

Production economics and profitability analysis of horizontal rack culture and horizontal rack culture coupled with raft-string culture methods: a case study of Pacific oyster (Crassostrea gigas) farming in Chiayi and Yunlin Counties, Taiwan  

Science Journals Connector (OSTI)

Because of the influence of an intertidal farming environment, the oyster breeding industry of Chiayi and Yunlin has adopted the use of a horizontal rack culture in the intertidal zone, as well ... cost function ...

Jung-Fu Huang; Jie-Min Lee

2014-06-01T23:59:59.000Z

430

Property:Geothermal/ProjectTypeTopic2Count | Open Energy Information  

Open Energy Info (EERE)

ProjectTypeTopic2Count ProjectTypeTopic2Count Jump to: navigation, search Property Name Geothermal/ProjectTypeTopic2Count Property Type Number Description Number of Project Type Topic 2 values. Pages using the property "Geothermal/ProjectTypeTopic2Count" Showing 25 pages using this property. (previous 25) (next 25) A Air Cooling + 0 + D Directional Drilling Systems + 0 + Drilling Systems + 2 + E EGS Demonstration + 0 + F Fluid Imaging + 2 + Fracture Characterization Technologies + 0 + G Geophysical Exploration Technologies + 0 + Geothermal Analysis + 0 + Geothermal Data Development, Collection, and Maintenance + 0 + Geothermal Energy Production from Low Temperature Resources, Coproduced Fluids from Oil and Gas Wells, and Geopressured Resources + 0 + H High Temperature Cements + 0 +

431

E-Print Network 3.0 - active drop counting Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Sample search results for: active drop counting Page: << < 1 2 3 4 5 > >> 1 Titan Recreation-Group Fitness Student Engagement Report Summary: hours of Drop In Fitness classes...

432

Patterns of Ethnic, Linguistic, and Geographic Heterogeneity of Palmar Interdigital Ridge Counts in the Indian Subcontinent  

E-Print Network (OSTI)

Published data on palmar interdigital ridge counts (a–b, b–c, and c–d) among 57 populations from the Indian subcontinent were analyzed with reference to ethnic, socioeconomic, linguistic, and geographic affiliations of the ...

Reddy, B. Mohan; Demarchi, Dario A.; Bharati, S.; Kumar, Vikrant; Crawford, Michael H.

2004-01-01T23:59:59.000Z

433

Measurement of the Neutron Lifetime by Counting Trapped Protons in a Cold Neutron Beam  

E-Print Network (OSTI)

A measurement of the neutron lifetime $\\tau_{n}$ performed by the absolute counting of in-beam neutrons and their decay protons has been completed. Protons confined in a quasi-Penning trap were accelerated onto a silicon detector held at a high potential and counted with nearly unit efficiency. The neutrons were counted by a device with an efficiency inversely proportional to neutron velocity, which cancels the dwell time of the neutron beam in the trap. The result is $\\tau_{n} = (886.6\\pm1.2{\\rm [stat]}\\pm3.2{\\rm [sys]})$ s, which is the most precise measurement of the lifetime using an in-beam method. The systematic uncertainty is dominated by neutron counting, in particular the mass of the deposit and the $^{6}$Li({\\it{n,t}}) cross section. The measurement technique and apparatus, data analysis, and investigation of systematic uncertainties are discussed in detail.

J. S. Nico; M. S. Dewey; D. M. Gilliam; F. E. Wietfeldt; X. Fei; W. M. Snow; G. L. Greene; J. Pauwels; R. Eykens; A. Lamberty; J. Van Gestel; R. D. Scott

2004-11-19T23:59:59.000Z

434

A High Count Rate Neutron Beam Monitor for Neutron Scattering Facilities  

SciTech Connect

Abstract Beam monitors are an important diagnostic tool in neutron science facilities. Present beam monitors use either ionization chambers in integration mode, which are slow and have no timing information, or pulse counters which can easily be saturated by high beam intensities. At high flux neutron scattering facilities, neutron beam monitors with very low intrinsic efficiency (10-5) are presently selected to keep the counting rate within a feasible range, even when a higher efficiency would improve the counting statistics and yield a better measurement of the incident beam. In this work, we report on a high count rate neutron beam monitor. This beam monitor offers good timing with an intrinsic efficiency of 10-3 and a counting rate capability of over 1,000,000 cps without saturation.

Barnett, Amanda [University of Tennessee, Knoxville (UTK); Crow, Lowell [ORNL; Diawara, Yacouba [ORNL; Hayward, J P [University of Tennessee, Knoxville (UTK); Hayward, Jason P [ORNL; Menhard, Kocsis [European Synchrotron Radiation Facility (ESRF); Sedov, Vladislav N [ORNL; Funk, Loren L [ORNL

2013-01-01T23:59:59.000Z

435

Packaging and qualification of single photon counting avalanche photodiode focal plane arrays  

E-Print Network (OSTI)

Avalanche Photodiode (APD) photon counting arrays are finding an increasing role in defense applications in laser radar and optical communications. As these system concepts mature, the need for reliable screening, test, ...

Verghese, Simon

436

Apparent Neutron Emissions from Polyethylene Capsules during Neutron Activation and Delayed Neutron Counting  

Science Journals Connector (OSTI)

At Imperial College uranium is determined at very low levels in environmental samples by delayed neutron counting. High density polyethylene capsules are used ... transfer system, from the reactor, to the neutron

R. Benzing; N. M. Baghini; B. A. Bennett…

2000-05-01T23:59:59.000Z

437

Toward whole-body optical imaging of rats using single-photon counting fluorescence tomography  

Science Journals Connector (OSTI)

We used single-photon counting (SPC) detection for diffuse fluorescence tomography to image nanomolar (nM) concentrations of reporter dyes through a rat. Detailed phantom data are...

Leblond, Frederic; Tichauer, Kenneth M; Holt, Robert W; El-Ghussein, Fadi; Pogue, Brian W

2011-01-01T23:59:59.000Z

438

Automated counting of cell bodies using Nissl stained cross-sectional images  

E-Print Network (OSTI)

Cell count is an important metric in neurological research. The loss in numbers of certain cells like neurons has been found to accompany not only the deterioration of important brain functions but disorders like clinical depression as well. Since...

D'Souza, Aswin Cletus

2008-10-10T23:59:59.000Z

439

Automated counting of cell bodies using Nissl stained cross-sectional images  

E-Print Network (OSTI)

Cell count is an important metric in neurological research. The loss in numbers of certain cells like neurons has been found to accompany not only the deterioration of important brain functions but disorders like clinical depression as well. Since...

D'Souza, Aswin Cletus

2009-05-15T23:59:59.000Z

440

Environmental and Performance Analysis of a 5kW Horizontal Axis Wind Turbine in East Central Alberta.  

E-Print Network (OSTI)

??This thesis investigates the environmental and performance results of a 5kW horizontal axis wind turbine installed in east-central Alberta. Life cycle assessment (LCA) methodology was… (more)

Rooke, Braden

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

Dynamics of a horizontal cylinder oscillating as a wave energy converter about an off-centred axis.   

E-Print Network (OSTI)

The hydrodynamic properties of a horizontal cylinder which is free to pitch about an off-centred axis are studied and used to derive the equations of motion of a wave energy converter which extracts energy from incoming ...

Lucas, Jorge

2011-11-22T23:59:59.000Z

442

Impacts of Soil and Pipe Thermal Conductivity on Performance of Horizontal Pipe in a Ground-source Heat Pump  

E-Print Network (OSTI)

In this paper the composition and thermal property of soil are discussed. The main factors that impact the soil thermal conductivity and several commonly-used pipe materials are studied. A model of heat exchanger with horizontal pipes of ground...

Song, Y.; Yao, Y.; Na, W.

2006-01-01T23:59:59.000Z

443

Heat transfer in a horizontal fluid layer heated from below upon rotation of one of the boundaries  

Science Journals Connector (OSTI)

The mixed convection in a horizontal fluid layer which is generated by uniform heating from below and by rotation of one ... studied experimentally. The region occupied by the fluid is a cylinder of radius320 mm ...

V. S. Berdnikov; V. A. Markov

444

A Probabilistic Approach to Site-Specific, Hazard-Consistent Vertical-to-Horizontal Spectral Ratio Model  

Energy.gov (U.S. Department of Energy (DOE))

A Probabilistic Approach to Site-Specific, Hazard-Consistent Vertical-to-Horizontal Spectral Ratio Model Rizzo Associates Presented at U.S. DOE Natural Phenomena Hazards Meeting October 21, 2014

445

Tangent length and sight distance effects on accident rates at horizontal curves on two-lane rural highways  

E-Print Network (OSTI)

model. Regression analysis on this database suggested that neither tangent length nor preceding sight distance are significant variables in explaining the variability in accidents on horizontal curves for a given degree of curvature category. Results...

Fink, Kenneth Lee

2012-06-07T23:59:59.000Z

446

Investigating the Horizontal Distribution of Hydrographic Properties of the Texas-Louisiana Shelf Using an Undulating Towed Vehicle  

E-Print Network (OSTI)

to investigate the horizontal and vertical spatial variability and examine the relationship of physical and biological factors with the distribution of dissolved oxygen concentration. Equipped with a CTD and multiple sensors, the instrument package produced high...

Calbat, Kyle

2013-02-04T23:59:59.000Z

447

Fast Convergence Algorithm for Earthquake Prediction Using SLF/ELF Horizontal Electric Dipole during Day and Night and Schumann Resonance  

Science Journals Connector (OSTI)

Electromagnetic wave radiation from a SLF/ELF horizontal electric dipole (HED) related ... electromagnetic waves associated with the seismic activity, SLF/ELF waves on the ground radiated from ... algorithm. A th...

Yuan-xin Wang; Rong-hong Jin; Jun-ping Geng

2012-11-01T23:59:59.000Z

448

Integrated analysis of production potential and profitability of a horizontal well in the Lower Glen Rose Formation, Maverick County, Texas  

SciTech Connect

The U.S. Department of Energy/Morgantown Energy Technology Center (DOE/METC) awarded a contract in 1991 to Prime Energy Corporation (PEC) to demonstrate the benefit of using horizontal wells to recover gas from low permeability formations. The project area was located in the Chittim field of Maverick County, Texas. The Lower Glen Rose Formation in the Chittim field was a promising horizontal well candidate based on the heterogenous nature of the reservoir (suggested by large well-to-well variances in reserves) and the low percentage of economical vertical wells. Since there was substantial evidence of reservoir heterogeneity, it was unknown whether the selected, wellsite would penetrate a reservoir with the desired properties for a horizontal well. Thus, an integrated team was formed to combine geologic analysis, seismic interpretation, reservoir engineering, reservoir simulation, and economic assessment to analyze the production potential and profitability of completing a horizontal well in the Lower Glen Rose formation.

Ammer, J.R.; Mroz, T.H.; Zammerilli, A.M.; Yost, A.B. II [Dept. of Energy, Morgantown, WV (United States); Muncey, J.G.; Hegeman, P.S.

1995-03-01T23:59:59.000Z

449

Effects of aerosol and horizontal inhomogeneity on the broadband albedo of marine stratus: Numerical simulations  

SciTech Connect

Recent estimates of the effect of increasing of anthropogenic sulfate aerosol on the radiative forcing of the atmosphere have indicated that its impact may be comparable in magnitude to the effect from increases in CO{sub 2}. Much of this impact is expected from the effects of the aerosol on cloud microphysics and the subsequent impact on cloud albedo. A solar broadband version of a 2D radiative transfer model was used to quantify the impact of enhanced aerosol concentrations and horizontal inhomogeneity on the solar broadband albedo of marine stratus. The results of the radiative transfer calculations indicated that in unbroken marine stratus clouds the net horizontal transport of photons over a domain of a few kilometers was nearly zero, and the domain-average broadband albedo computed in a 2D cross section was nearly identical to the domain average calculated from a series of independent pixel approximation (IPA) calculations of the same cross section. However, the horizontal inhomogeneity does affect the cloud albedo compared to plane-parallel approximation (PPA) computations due to the nonlinear relationship between albedo and optical depth. The reduction in cloud albedo could be related to the variability of the distribution of log (cloud optical depth). These results extend the finding of Cahalan et al. to broadband solar albedos in a more realistic cloud model and suggest that accurate computation of domain-averaged broadband albedos in unbroken (or nearly unbroken) marine stratus can be made using IPA calculations with 1D radiative transfer models. Computations of the mean albedo over portions of the 3D RAMS domain show the relative increase in cloud albedo due to a 67% increase in the boundary-layer average CCN concentration was between 6% and 9%. The effects of cloud inhomogeneity on the broadband albedo as measured from the PPA bias ranged from 3% to 5%. 25 refs., 8 figs., 4 tabs.

Duda, D.P.; Stephens, G.L.; Stevens, B.; Cotton, W.R. [Colorado State Univ., Fort Collins, CO (United States)] [Colorado State Univ., Fort Collins, CO (United States)

1996-12-15T23:59:59.000Z

450

Finite element analysis of laminar mixed convection in the entrance region of horizontal annular ducts  

SciTech Connect

The laminar mixed convection in the entrance region of horizontal straight ducts of an annular cross section is studied by means of a generally applicable finite element procedure based on the parabolized simplification of the Navier-Stokes and energy equations and on the Boussinesq approximation of the buoyancy term. The procedure is validated through comparisons of computed results with available data from the literature. New results concern annuli with radius ratios equal to 0.25, 0.5, and 0.75 subjected to the fundamental boundary condition of the second and the third kinds, for Prandtl numbers equal to 0.7 and 7, and different values of Grashof number.

Nonino, C.; Giudice, S. del [Univ. di Udine (Italy). Dipt. di Energetica e Macchine

1996-02-23T23:59:59.000Z

451

Unsteady mixed convection in horizontal ducts with applications to chemical vapor deposition processes  

SciTech Connect

Mixed convection in a horizontal rectangular duct of aspect ratio 4 heated from below with cold side walls was studied numerically for a non-Boussinesq fluid. Results are presented for a reduced temperature of 2.33 and a Rayleigh number of 130,700. The resulting flow field at Re = 25 consisted of four steady longitudinal vortices, symmetric about the duct centerline, with a leading transverse roll cell. A reduction to Re = 10 resulted in the introduction of traveling transverse waves. A further reduction Re = 5 resulted in a loss of symmetry about the duct centerline plane. Further work is underway to verify the Re = 5 results.

Spall, R.E. [Univ. of South Alabama, Mobile, AL (United States). Dept. of Mechanical Engineering] [Univ. of South Alabama, Mobile, AL (United States). Dept. of Mechanical Engineering

1996-01-01T23:59:59.000Z

452

Dynamics of a Bose-Einstein condensate in a horizontally vibrating shallow optical lattice  

SciTech Connect

We consider a solitonic solution of the self-attractive Bose-Einstein condensate in a one-dimensional external potential of a shallow optical lattice with large periodicity when the lattice is horizontally shaken. We investigate the dynamics of the bright soliton through the properties of the fixed points. The special type of bifurcation results in a simple criterion for the stability of the fixed points depending only on the amplitude of the shaking lattice. Because of the similarity of the equations with those of an ac-driven Josephson junction, some results may find applications in other branches of physics.

Valizadeh, A.; Jahanbani, Kh.; Kolahchi, M. R. [Institute for Advanced Studies in Basic Sciences, P.O. Box 45195-1159, Zanjan (Iran, Islamic Republic of)

2010-02-15T23:59:59.000Z

453

Security camera resolution measurements: Horizontal TV lines versus modulation transfer function measurements.  

SciTech Connect

The horizontal television lines (HTVL) metric has been the primary quantity used by division 6000 related to camera resolution for high consequence security systems. This document shows HTVL measurements are fundamen- tally insufficient as a metric to determine camera resolution, and propose a quantitative, standards based methodology by measuring the camera system modulation transfer function (MTF), the most common and accepted metric of res- olution in the optical science community. Because HTVL calculations are easily misinterpreted or poorly defined, we present several scenarios in which HTVL is frequently reported, and discuss their problems. The MTF metric is discussed, and scenarios are presented with calculations showing the application of such a metric.

Birch, Gabriel Carisle; Griffin, John Clark

2015-01-01T23:59:59.000Z

454

Cosmic ray neutron background reduction using localized coincidence veto neutron counting  

DOE Patents (OSTI)

This invention relates to both the apparatus and method for increasing the sensitivity of measuring the amount of radioactive material in waste by reducing the interference caused by cosmic ray generated neutrons. The apparatus includes: (a) a plurality of neutron detectors, each of the detectors including means for generating a pulse in response to the detection of a neutron; and (b) means, coupled to each of the neutrons detectors, for counting only some of the pulses from each of the detectors, whether cosmic ray or fission generated. The means for counting includes a means that, after counting one of the pulses, vetos the counting of additional pulses for a prescribed period of time. The prescribed period of time is between 50 and 200 .mu.s. In the preferred embodiment the prescribed period of time is 128 .mu.s. The veto means can be an electronic circuit which includes a leading edge pulse generator which passes a pulse but blocks any subsequent pulse for a period of between 50 and 200 .mu.s. Alternately, the veto means is a software program which includes means for tagging each of the pulses from each of the detectors for both time and position, means for counting one of the pulses from a particular position, and means for rejecting those of the pulses which originate from the particular position and in a time interval on the order of the neutron die-away time in polyethylene or other shield material. The neutron detectors are grouped in pods, preferably at least 10. The apparatus also includes means for vetoing the counting of coincidence pulses from all of the detectors included in each of the pods which are adjacent to the pod which includes the detector which produced the pulse which was counted.

Menlove, Howard O. (Los Alamos, NM); Bourret, Steven C. (Los Alamos, NM); Krick, Merlyn S. (Los Alamos, NM)

2002-01-01T23:59:59.000Z

455

SPATIALLY DISAGGREGATE PANEL MODELS OF CRASH AND INJURY COUNTS: THE EFFECT OF SPEED LIMITS AND DESIGN  

E-Print Network (OSTI)

characteristics, such as curvature and grade, as well as vehicle miles traveled (VMT). A 10 mph speed limit invites an "ecological fallacy" in results, where individual-level relationships cannot be inferred safety factors other than speed limits, including horizontal curvature and truck vehicle miles

Kockelman, Kara M.

456

Robust control design for the plasma horizontal position control on J-TEXT Tokamak  

Science Journals Connector (OSTI)

Abstract It is extremely important for tokamak to control the plasma position during routine discharge. However, the model of plasma in tokamak usually contains much of the uncertainty, such as structured uncertainties and unmodeled dynamics. Compared with the traditional PID control approach, robust control theory is more suitable to handle this problem. In the paper, we propose a H? robust control scheme to control the horizontal position of plasma during the flat-top phase of discharge on Joint Texas Experimental Tokamak (J-TEXT) tokamak. First, the model of our plant for plasma horizontal position control is obtained from the position equilibrium equations. Then the H? robust control framework is used to synthesize the controller. Based on this, an H? controller is designed to minimize the regulation/tracking error. Finally, a comparison study is conducted between the optimized H? robust controller and the traditional PID controller in simulations. The simulation results of the H? robust controller show a significant improvement of the performance with respect to those obtained with traditional PID controller, which is currently used on our machine.

W.Z. Yu; Z.P. Chen; G. Zhuang; Z.J. Wang

2013-01-01T23:59:59.000Z

457

Analysis of horizontal and vertical in-situ oil-shale retorting: comparison of field experiments  

SciTech Connect

Currently two different processing techniques are utilized for in situ oil shale retorting. Horizontal In Situ (HIS), in which the retort front moves parallel to the shale bedding planes, is being utilized on relatively thin, near-surface oil shale. Vertical Modified In Situ (VMIS), in which the retort front moves perpendicular to the shale bedding planes, is being utilized for thicker deposits of shale at greater depths. While chemical effects in the two processes should be similar, physical phenomena (such as fluid product flow and heat transfer) can be substantially different due to gravity and anisotropic shale properties associated with the shale bedding planes. To illustrate both similarities between the processes and some striking differences, we present thermal data (detailing movement of the steam and retorting fronts) and offgas and oil analysis data (allowing material and energy balance closures) from two recent field experiments, Sandia/Geokinetics Retort 23 (HIS) and Occidental Retort 8 (VMIS). These data show, for example, a broader combustion front in the horizontal process, resulting in a lower thermal efficiency. However, because of a lower shale grade in the VMIS experiment, local oil yield (50 to 60% of Fischer Assay) was similar in the two experiments, with roughly two-thirds of the loss to oil combustion and one-third to oil coking and cracking reactions.

Tyner, C.E.; Bickel, T.C.; Stevens, A.L.; Lekas, J.M.

1983-01-01T23:59:59.000Z

458

THE CHEMICAL COMPOSITIONS OF NON-VARIABLE RED AND BLUE FIELD HORIZONTAL BRANCH STARS  

SciTech Connect

We present a new detailed abundance study of field red horizontal branch (RHB) and blue horizontal branch (BHB) non-variable stars. High resolution and high signal-to-noise ratio echelle spectra of 11 RHB and 12 BHB were obtained with the McDonald 2.7 m telescope, and the RHB sample was augmented by reanalysis of spectra of 25 stars from a recent survey. We derived stellar atmospheric parameters based on spectroscopic constraints and computed relative abundance ratios for 24 species of 19 elements. The species include Si II and Ca II, which have not been previously studied in RHB and BHB (T{sub eff} < 9000 K) stars. The abundance ratios are generally consistent with those of similar-metallicity field stars in different evolutionary stages. We estimated the masses of the RHB and BHB stars by comparing their T{sub eff}-log g positions with HB model evolutionary tracks. The mass distribution suggests that our program stars possess masses of {approx}0.5 M{sub sun}. Finally, we compared the temperature distributions of field RHB and BHB stars with field RR Lyraes in the metallicity range -0.8{approx}> [Fe/H] {approx}>-2.5. This yielded effective temperature estimates of 5900 K and 7400 K for the red and blue edges of the RR Lyrae instability strip.

For Biqing; Sneden, Christopher, E-mail: biqing@astro.as.utexas.ed [Department of Astronomy, University of Texas, Austin, TX 78712 (United States)

2010-12-15T23:59:59.000Z

459

Flow distribution in a solar collector panel with horizontally inclined absorber strips  

Science Journals Connector (OSTI)

The objective of this work is to theoretically and experimentally investigate the flow and temperature distribution in a solar collector panel with an absorber consisting of horizontally inclined strips. Fluid flow and heat transfer in the collector panel are studied by means of computational fluid dynamics (CFD) calculations. Further, experimental investigations of a 12.5 m2 solar collector panel with 16 parallel connected horizontal fins are carried out. The flow distribution through the absorber is evaluated by means of temperature measurements on the backside of the absorber tubes. The measured temperatures are compared to the temperatures determined by the CFD model and there is a good similarity between the measured and calculated results. Calculations with the CFD model elucidate the flow and temperature distribution in the collector. The influences of different operating conditions such as flow rate, properties of solar collector fluid, solar collector fluid inlet temperature and collector tilt angle are shown. The flow distribution through the absorber fins is uniform if high flow rates are used. By decreased flow rate and decreased content of glycol in the glycol/water mixture used as solar collector fluid, and by increased collector tilt and inlet temperature, the flow distribution gets worse resulting in an increased risk of boiling in the upper part of the collector panel.

Jianhua Fan; Louise Jivan Shah; Simon Furbo

2007-01-01T23:59:59.000Z

460

Design of a horizontal neutron reflectometer for the European Spallation Source  

E-Print Network (OSTI)

A design study of a horizontal neutron reflectometer adapted to the general baseline of the long pulse European Spallation Source (ESS) is presented. The instrument layout comprises solutions for the neutron guide, high-resolution pulse shaping and beam bending onto a sample surface being so far unique in the field of reflectometry. The length of this instrument is roughly 55 m, enabling $\\delta \\lambda / \\lambda$ resolutions from 0.5% to 10%. The incident beam is focussed in horizontal plane to boost measurements of sample sizes of 1*1 cm{^2} and smaller with potential beam deflection in both downward and upward direction. The range of neutron wavelengths untilized by the instrument is 2 to 7.1 (12.2, ...) {\\AA}, if every (second, ...) neutron source ulse is used. Angles of incidence can be set between 0{\\deg} and 9{\\deg} with a total accessible q-range from 4*10^{-3} {\\AA}^{-1} up to 1 {\\AA}^{-1}. The instrument operates both in {\\theta}/{\\theta} (free liquid surfaces) and {\\theta}/2{\\theta} (solid/liquid, ...

Nekrassov, D; Lieutenant, K; Moulin, J -F; Strobl, M; Steitz, R

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "horizontal rig count" 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

Horizontal gene transfer and the evolution of transcriptionalregulation in Escherichia coli  

SciTech Connect

Background: Most bacterial genes were acquired by horizontalgene transfer from other bacteria instead of being inherited bycontinuous vertical descent from an ancient ancestor}. To understand howthe regulation of these {acquired} genes evolved, we examined theevolutionary histories of transcription factors and of regulatoryinteractions from the model bacterium Escherichia coli K12. Results:Although most transcription factors have paralogs, these usually arose byhorizontal gene transfer rather than by duplication within the E. colilineage, as previously believed. In general, most neighbor regulators --regulators that are adjacent to genes that they regulate -- were acquiredby horizontal gene transfer, while most global regulators evolvedvertically within the gamma-Proteobacteria. Neighbor regulators wereoften acquired together with the adjacent operon that they regulate, sothe proximity might be maintained by repeated transfers (like "selfishoperons"). Many of the as-yet-uncharacterized (putative) regulators havealso been acquired together with adjacent genes, so we predict that theseare neighbor regulators as well. When we analyzed the histories ofregulatory interactions, we found that the evolution of regulation byduplication was rare, and surprisingly, many of the regulatoryinteractions that are shared between paralogs result from convergentevolution. Another surprise was that horizontally transferred genes aremore likely than other genes to be regulated by multiple regulators, andmost of this complex regulation probably evolved after the transfer.Conclusions: Our results highlight the rapid evolution of niche-specificgene regulation in bacteria.

Price, Morgan N.; Dehal, Paramvir S.; Arkin, Adam P.

2007-12-20T23:59:59.000Z

462

This Week In Petroleum Printer-Friendly Version  

Annual Energy Outlook 2012 (EIA)

7, 2010 (Next Release on March 24, 2010) Oil Rig Counts Increase Baker Hughes reported that the number of rigs drilling for oil in the United States has recovered since the low...

463

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2012 (EIA)

levels 22.2% below year-ago levels and 25.5% below the 5-year average. The Baker Hughes rotary rig count increased by 1 to 1,875 active units this week. Natural gas rigs remained...

464

U.S. Energy Information Administration (EIA)  

NLE Websites -- All DOE Office Websites (Extended Search)

26, unchanged from the previous week. The oil rig count increased by 6 units to 1,401 rotary rigs. The weekly average natural gas plant liquids composite price (covering July...

465

U.S. Energy Information Administration (EIA)  

NLE Websites -- All DOE Office Websites (Extended Search)

levels 22.5% below year-ago levels and 16.6% below the 5-year average. The natural gas rotary rig count totaled 356 as of January 24, which represents a decline of 9 rigs from...

466

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2012 (EIA)

to data from Baker Hughes Inc., an increase of 6 from the previous week. The natural gas rotary rig count totaled 318, which represents a decrease of 8 rigs from the previous week...

467

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2012 (EIA)

below year-ago levels, and 1.2% below the 5-year average. The Baker Hughes natural gas rotary rig count totaled 349 active units as of Friday, June 21, a decline of 4 rigs from...

468

U.S. Energy Information Administration (EIA)  

NLE Websites -- All DOE Office Websites (Extended Search)

levels 48.9% below year-ago levels and 46.2% below the 5-year average. The natural gas rotary rig count totaled 345 as of March 7. This represents an increase of 10 rigs from...

469

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2012 (EIA)

below year-ago levels and 23.5% below the 5-year average for this week. The Baker Hughes rotary rig count decreased by 4 to 1,871 active units this week. Natural gas rigs...

470

EIA Energy Information Administration  

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

week to end at 28.30 or 4.88 per MMBtu. For the week ended April 27, the Baker Hughes Rotary Rig Count for the number of drilling rigs actively exploring for or developing...

471

U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

below year-ago levels and 21.7% below the 5-year average for this week. The Baker Hughes rotary rig count increased by 12 to 1,883 active units this week. Natural gas rigs...

472

U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

year-ago levels and 20.3% below the five-year average for this week. The Baker Hughes rotary rig count increased by 6 to 1,889 active units this week. Natural gas rigs...

473

EIA Energy Information Administration  

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

for higher consumer prices in the upcoming winter. Other Market Trends: The Baker Hughes Rotary Rig Count of the number of drilling rigs actively exploring for or developing oil...

474

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

The Boston forum is open to the public. Additional information is available at http:www.energy.govnews3197.htm. Natural Gas Rig Count: The number of rigs drilling for natural...

475

Don't Count Your Ions Before They Dissociate | U.S. DOE Office of Science  

Office of Science (SC) Website

Don't Count Your Ions Before They Dissociate Don't Count Your Ions Before They Dissociate Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) News & Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594 E: sc.bes@science.doe.gov More Information » June 2013 Don't Count Your Ions Before They Dissociate Ionic liquids found to behave differently than expected. Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Image courtesy of J. N. Israelachvili Cartoon depicting how the ionic liquid molecules arrange in electrically charged interfaces (not to scale). The green shading represents the 99.98%

476

,"U.S. Natural Gas Number of Underground Storage Depleted Fields Capacity (Count)"  

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

Depleted Fields Capacity (Count)" Depleted Fields Capacity (Count)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Natural Gas Number of Underground Storage Depleted Fields Capacity (Count)",1,"Annual",2012 ,"Release Date:","12/12/2013" ,"Next Release Date:","1/7/2014" ,"Excel File Name:","na1391_nus_8a.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/na1391_nus_8a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"12/12/2013 5:43:06 PM"

477

,"U.S. Natural Gas Number of Underground Storage Salt Caverns Capacity (Count)"  

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

Salt Caverns Capacity (Count)" Salt Caverns Capacity (Count)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Natural Gas Number of Underground Storage Salt Caverns Capacity (Count)",1,"Annual",2012 ,"Release Date:","12/12/2013" ,"Next Release Date:","1/7/2014" ,"Excel File Name:","na1393_nus_8a.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/na1393_nus_8a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"12/12/2013 5:43:34 PM"

478

Saving Energy in Altoona Where it Counts: City Lights | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Saving Energy in Altoona Where it Counts: City Lights Saving Energy in Altoona Where it Counts: City Lights Saving Energy in Altoona Where it Counts: City Lights July 20, 2010 - 1:53pm Addthis Installed next to an original streetlight, a new LED unit (right) emits a whiter light in addition to saving energy. | Photo courtesy of the city of Altoona, Pa. That's why their first priority after receiving a $205,700 Energy Efficiency and Conservation Block Grant (EECBG) was to replace 169 downtown streetlights with energy-efficient LED units. Funded as part of the American Recovery and Reinvestment Act (ARRA), the project also gives Altoona a much brighter appearance when the sun goes down.The city of Altoona, Pa. can trace 85 percent of its energy costs back to one area: lights. "Downtown sure looks different with all of that white LED light," says Lee

479

Saving Energy in Altoona Where it Counts: City Lights | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Saving Energy in Altoona Where it Counts: City Lights Saving Energy in Altoona Where it Counts: City Lights Saving Energy in Altoona Where it Counts: City Lights July 20, 2010 - 1:53pm Addthis Installed next to an original streetlight, a new LED unit (right) emits a whiter light in addition to saving energy. | Photo courtesy of the city of Altoona, Pa. That's why their first priority after receiving a $205,700 Energy Efficiency and Conservation Block Grant (EECBG) was to replace 169 downtown streetlights with energy-efficient LED units. Funded as part of the American Recovery and Reinvestment Act (ARRA), the project also gives Altoona a much brighter appearance when the sun goes down.The city of Altoona, Pa. can trace 85 percent of its energy costs back to one area: lights. "Downtown sure looks different with all of that white LED light," says Lee

480

New detector array improves neutron count capability at HFIR's Bio-SANS |  

NLE Websites -- All DOE Office Websites (Extended Search)

Bio-SANS neutron count capability improves Bio-SANS neutron count capability improves New detector array improves neutron count capability at HFIR's Bio-SANS Agatha Bardoel - June 29, 2012 Bio-SANS team that worked on installation of the new detector system. Front row, left to right: Doug Selby, Steve Hicks, Shuo Qian, Sai Venkatesh Pingali, Kathy Bailey, Amy Black Jones, and Derrick Williams. Back row, left to right: Ed Blackburn, John Palatinus, William Brad O'Dell, Mike Humphreys, Justin Beal, Ken Littrell, Greg Jones, Kevin Berry, Volker Urban, Randy Summers, and Ron Maples. Bio-SANS, the Biological Small-Angle Neutron Scattering Instrument at HFIR recently had a detector upgrade that will provide significantly improved performance that is more in line with the instrument's capability. Shorter experiment times are expected, which means more experiments can be

Note: This page contains sample records for the topic "horizontal rig count" 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

Effect of human-biometric sensor interaction on fingerprint matching performance, image quality and minutiae count  

Science Journals Connector (OSTI)

This study investigated the effect of force levels (3, 5, 7, 9 and 11N) on fingerprint matching performance, image quality scores and minutiae count between optical and capacitance sensors. Three images were collected from the right index fingers of 75 participants for each sensing technology. Descriptive statistics analysis of variance and Kruskal-Wallis non-parametric tests were conducted to assess significant differences in minutiae counts and image quality scores, by force level. The results reveal a significant difference in image quality score by force level and sensor technology in contrast to minutiae count for the capacitance sensor. The image quality score is one of the many factors that influence the system matching performance, yet the removal of low quality images does not improve the system performance at each force level. Further research is needed to identify other manipulatable factors to improve the interaction between a user and device and the subsequent matching performance.

Eric P. Kukula; Christine R. Blomeke; Shimon K. Modi; Stephen J. Elliott

2009-01-01T23:59:59.000Z

482

Photon counting for quantum key distribution with Peltier cooled InGaAs/InP APD's  

E-Print Network (OSTI)

The performance of three types of InGaAs/InP avalanche photodiodes is investigated for photon counting at 1550 nm in the temperature range of thermoelectric cooling. The best one yields a dark count probability of $% 2.8\\cdot 10^{-5}$ per gate (2.4 ns) at a detection efficiency of 10% and a temperature of -60C. The afterpulse probability and the timing jitter are also studied. The results obtained are compared with those of other papers and applied to the simulation of a quantum key distribution system. An error rate of 10% would be obtained after 54 kilometers.

Stucki, D; Stefanov, A; Zbinden, H; Rarity, J G; Wall, T; Stucki, Damien; Ribordy, Gr\\'{e}goire; Stefanov, Andr\\'{e}; Zbinden, Hugo; Rarity, John G.; Wall, Tom

2001-01-01T23:59:59.000Z

483

Photon counting for quantum key distribution with Peltier cooled InGaAs/InP APD's  

E-Print Network (OSTI)

The performance of three types of InGaAs/InP avalanche photodiodes is investigated for photon counting at 1550 nm in the temperature range of thermoelectric cooling. The best one yields a dark count probability of $% 2.8\\cdot 10^{-5}$ per gate (2.4 ns) at a detection efficiency of 10% and a temperature of -60C. The afterpulse probability and the timing jitter are also studied. The results obtained are compared with those of other papers and applied to the simulation of a quantum key distribution system. An error rate of 10% would be obtained after 54 kilometers.

Damien Stucki; Grégoire Ribordy; André Stefanov; Hugo Zbinden; John G. Rarity; Tom Wall

2001-06-01T23:59:59.000Z

484

Apparatus and method for temperature correction and expanded count rate of inorganic scintillation detectors  

DOE Patents (OSTI)

The present invention includes an apparatus and corresponding method for temperature correction and count rate expansion of inorganic scintillation detectors. A temperature sensor is attached to an inorganic scintillation detector. The inorganic scintillation detector, due to interaction with incident radiation, creates light pulse signals. A photoreceiver processes the light pulse signals to current signals. Temperature correction circuitry that uses a fast light component signal, a slow light component signal, and the temperature signal from the temperature sensor to corrected an inorganic scintillation detector signal output and expanded the count rate.

Ianakiev, Kiril D. (Los Alamos, NM); Hsue, Sin Tao (Santa Fe, NM); Browne, Michael C. (Los Alamos, NM); Audia, Jeffrey M. (Abiquiu, NM)

2006-07-25T23:59:59.000Z

485

Counting Individual Ca41 Atoms with a Magneto-Optical Trap  

Science Journals Connector (OSTI)

Atom trap trace analysis, a novel method based upon laser trapping and cooling, is used to count individual atoms of Ca41 present in biomedical samples with isotopic abundance levels between 10-8 and 10-10. The method is calibrated against resonance ionization mass spectrometry, demonstrating good agreement between the two methods. The present system has a counting efficiency of 2×10-7. Within 1 h of observation time, its 3-? detection limit on the isotopic abundance of Ca41 reaches 4.5×10-10.

I. D. Moore; K. Bailey; J. Greene; Z.-T. Lu; P. Müller; T. P. O’Connor; Ch. Geppert; K. D. A. Wendt; L. Young

2004-04-14T23:59:59.000Z

486

Development of general inflow performance relationships (IPR`s) for slanted and horizontal wells producing heterogeneous solution-gas drive reservoirs  

SciTech Connect

Since 1968, the Vogel equation has been used extensively and successfully for analyzing the inflow performance relationship (IPR) of flowing vertical wells producing by solution-gas drive. Oil well productivity can be rapidly estimated by using the Vogel IPR curve and well outflow performance. With recent interests on horizontal well technology, several empirical IPRs for solution-gas drive horizontal and slanted wells have been developed under homogeneous reservoir conditions. This report presents the development of IPRs for horizontal and slanted wells by using a special vertical/horizontal/slanted well reservoir simulator under six different reservoir and well parameters: ratio of vertical to horizontal permeability, wellbore eccentricity, stratification, perforated length, formation thickness, and heterogeneous permeability. The pressure and gas saturation distributions around the wellbore are examined. The fundamental physical behavior of inflow performance for horizontal wells is described.

Cheng, A.M.

1992-04-01T23:59:59.000Z

487

Development and application of type curves for pressure transient analysis of horizontal wells in shale gas reservoirs  

Science Journals Connector (OSTI)

Even though significant progresses have been made in the past few years, there appears to be a lack of information regarding the characterisation of shale gas formations. A major purpose of this study is to demonstrate impacts of horizontal well geometries and gas flow parameters as well as shale gas reservoir system on horizontal well production behaviour and flow regime on pressure transient analysis (PTA). Extensive numerical simulations were conducted to model transient pressure behaviour of a horizontal well and apply the results to well test analysis in shale gas reservoirs. Based on the results from numerical simulations, a set of type curves have been developed in terms of dimensionless pseudopressure and time. Results from type curve matching for synthetic pressure data in shale gas reservoirs demonstrate that the conventional analysis approach may still be applicable for the quantitative analysis on the transient gas flow behaviour and determination of formation properties. [Received: June 21, 2013; Accepted: August 6, 2013

Sung Jun Lee; Tae Hong Kim; Kun Sang Lee

2014-01-01T23:59:59.000Z

488

Solar: monthly and annual average global horizontal (GHI) GIS data at 10km  

Open Energy Info (EERE)

West China from DLR West China from DLR Dataset Summary Description (Abstract): Data of high resolution (10kmx10km) Global Horizontal Irradiance (GHI) for China for the years 2000, 2002 and 2003. The data are available for monthly and annual sums stored in a ESRI-Shapefile. Please read the country report for additional information. (Purpose): The data are helpful for the assessment of the solar potential of the country and can give project developer a first impression of the solar resource of the country. Source DLR - Deutsches Zentrum für Luft- und Raumfahrt Date Released October 31st, 2004 (10 years ago) Date Updated November 01st, 2007 (7 years ago) Keywords China CRED CREIA DLR GHI GIS solar SWERA UNEP Data application/zip icon Download Shapefile (zip, 4.4 MiB) text/csv icon Download Data (csv, 8.9 MiB)

489

Solar: monthly and annual average global horizontal (GHI) GIS data at 10km  

Open Energy Info (EERE)

Ghana from DLR Ghana from DLR Dataset Summary Description (Abstract): Data of high resolution (10kmx10km) Global Horizontal Irradiance (GHI) for Ghana for the years 2000, 2001 and 2002. The data are available for monthly and annual sums stored in a ESRI-Shapefile. Please read the documentation file for additional information. (Purpose): The data are helpful for the assessment of the solar potential of the country and can give project developer a first impression of the solar resource of the country. Source DLR - Deutsches Zentrum für Luft- und Raumfahrt Date Released October 31st, 2004 (10 years ago) Date Updated November 01st, 2007 (7 years ago) Keywords DLR Ghana GHI GIS solar SWERA UNEP Data application/zip icon Download Shapefile (zip, 504 KiB) text/csv icon Download Data (csv, 1 MiB)

490

Drilling Sideways -- A Review of Horizontal Well Technology and Its Domestic Application  

Gasoline and Diesel Fuel Update (EIA)

TR-0565 TR-0565 Distribution Category UC-950 Drilling Sideways -- A Review of Horizontal Well Technology and Its Domestic Application April 1993 Energy Information Administration Office of Oil and Gas U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the Department of Energy. The information contained herein should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Contacts This report was prepared by the Energy Information Administration, Office of Oil and Gas, under the general direction of Diane W. Lique, Director of the Reserves and Natural Gas Division, Craig H. Cranston, Chief of the Reserves and Production Branch, and David F. Morehouse, Senior Supervisory Geologist. Information regarding

491

Solar: monthly and annual average global horizontal (GHI) GIS data at 10km  

Open Energy Info (EERE)

Ethiopia from DLR Ethiopia from DLR Dataset Summary Description (Abstract): Data of high resolution (10kmx10km) Global Horizontal Irradiance (GHI) for Ethiopia for the years 2000, 2001 and 2002. The data are available for monthly and annual sums stored in a ESRI-Shapefile. Please read the documentation file for additional information. (Purpose): The data are helpful for the assessment of the solar potential of the country and can give project developer a first impression of the solar resource of the country. Source DLR - Deutsches Zentrum für Luft- und Raumfahrt Date Released October 31st, 2004 (10 years ago) Date Updated November 01st, 2007 (7 years ago) Keywords DLR Ethiopia GEF GHI GIS solar SWERA UNEP Data application/zip icon Download Shapefile (zip, 2.8 MiB) text/csv icon Download Data (csv, 5.6 MiB)

492

Solar: monthly and annual average global horizontal (GHI) GIS data at 10km  

Open Energy Info (EERE)

Nepal from DLR Nepal from DLR Dataset Summary Description (Abstract): Data of high resolution (10kmx10km) Global Horizontal Irradiance (GHI) for Nepal for the years 2000, 2002 and 2003. The data are available for monthly and annual sums stored in a ESRI-Shapefile. Please read the country report for additional information. (Purpose): The data are helpful for the assessment of the solar potential of the country and can give project developer a first impression of the solar resource of the country. Source DLR - Deutsches Zentrum für Luft- und Raumfahrt Date Released October 31st, 2004 (10 years ago) Date Updated November 01st, 2007 (7 years ago) Keywords DLR GEF GHI GIS Nepal solar SWERA UNEP Data application/zip icon Download Shapefile (zip, 593.8 KiB) text/csv icon Download Data (csv, 1.2 MiB)

493

Solar: monthly and annual average global horizontal (GHI) GIS data at 10km  

Open Energy Info (EERE)

Sri Lanka from DLR Sri Lanka from DLR Dataset Summary Description (Abstract): Data of high resolution (10kmx10km) Global Horizontal Irradiance (GHI) for Sri Lanka for the years 2000, 2002 and 2003. The data are available for monthly and annual sums stored in a ESRI-Shapefile. Please read the country report for additional information. (Purpose): The data are helpful for the assessment of the solar potential of the country and can give project developer a first impression of the solar resource of the country. Source DLR - Deutsches Zentrum für Luft- und Raumfahrt Date Released October 31st, 2004 (10 years ago) Date Updated November 01st, 2007 (7 years ago) Keywords DLR GHI GIS solar Sri Lanka SWERA UNEP Data text/csv icon Download Data (csv, 296.1 KiB) application/zip icon Download Shapefile (zip, 153.7 KiB)

494

Solar: monthly global horizontal (GHI) GIS data at 10km resolution for  

Open Energy Info (EERE)

Bangladesh from DLR Bangladesh from DLR Dataset Summary Description (Abstract): Data of high resolution (10kmx10km) Global Horizontal Irradiance (GHI) for Bangladesh for the years 2000, 2002 and 2003. The data are available for monthly and annual sums stored in a ESRI-Shapefile. Please read the country report for additional information. (Purpose): The data are helpful for the assessment of the solar potential of the country and can give project developer a first impression of the solar resource of the country. Source DLR - Deutsches Zentrum für Luft- und Raumfahrt Date Released October 31st, 2004 (10 years ago) Date Updated November 01st, 2007 (7 years ago) Keywords Bangladesh DLR GEF GHI GIS solar SWERA UNEP Data text/csv icon Download Data (csv, 916.5 KiB) application/zip icon Download Shapefile (zip, 479.3 KiB)

495

Turbulent natural convection in a horizontal layer of small-Prandtl-number fluid  

SciTech Connect

Turbulent natural convection in a horizontal layer of liquid metal confined between two infinite rigid plates is studied theoretically. The layer, with uniformly distributed energy sources in the fluid, is heated from below and cooled from above. An approximate analysis of the Boussinesq equations of motion is performed for the case of small-Prandtl-number fluids to determine the temperature profiles in three different thermal regions of the layer. By matching these profiles in the regions of overlap, analytical expressions are derived for the lower and upper surface Nusselt numbers and the dimensionless turbulent core temperature as functions of the internal and external Rayleigh numbers defined respectively in terms of the volumetric heating rate and surface-to-surface temperature difference of the layer. Comparison of the present results with heat transfer data for liquid mercury is made and found to be good.

Cheung, F.B.; Shiah, S.W. (Pennsylvania State Univ., University Park (United States)); Cho, D.H.; Baker, L. Jr. (Argonne National Lab., IL (United States))

1991-11-01T23:59:59.000Z

496

Combined Experiment Phase 1. [Horizontal axis wind turbines: wind tunnel testing versus field testing  

SciTech Connect

How does wind tunnel airfoil data differ from the airfoil performance on an operating horizontal axis wind turbine (HAWT) The National Renewable Energy laboratory has been conducting a comprehensive test program focused on answering this question and understanding the basic fluid mechanics of rotating HAWT stall aerodynamics. The basic approach was to instrument a wind rotor, using an airfoil that was well documented by wind tunnel tests, and measure operating pressure distributions on the rotating blade. Based an the integrated values of the pressure data, airfoil performance coefficients were obtained, and comparisons were made between the rotating data and the wind tunnel data. Care was taken to the aerodynamic and geometric differences between the rotating and the wind tunnel models. This is the first of two reports describing the Combined Experiment Program and its results. This Phase I report covers background information such as test setup and instrumentation. It also includes wind tunnel test results and roughness testing.

Butterfield, C.P.; Musial, W.P.; Simms, D.A.

1992-10-01T23:59:59.000Z

497

Method for forming an in situ oil shale retort with horizontal free faces  

DOE Patents (OSTI)

A method for forming a fragmented permeable mass of formation particles in an in situ oil shale retort is provided. A horizontally extending void is excavated in unfragmented formation containing oil shale and a zone of unfragmented formation is left adjacent the void. An array of explosive charges is formed in the zone of unfragmented formation. The array of explosive charges comprises rows of central explosive charges surrounded by a band of outer explosive charges which are adjacent side boundaries of the retort being formed. The powder factor of each outer explosive charge is made about equal to the powder factor of each central explosive charge. The explosive charges are detonated for explosively expanding the zone of unfragmented formation toward the void for forming the fragmented permeable mass of formation particles having a reasonably uniformly distributed void fraction in the in situ oil shale retort.

Ricketts, Thomas E. (Grand Junction, CO); Fernandes, Robert J. (Bakersfield, CA)

1983-01-01T23:59:59.000Z

498

An evaluation of alternative horizontal curve design approaches for rural two-lane highways  

E-Print Network (OSTI)

proposed by Lamm, et al, are: 1) Good: AD s 5' or 2) Fair: 3) Poor: AV? s 9. 7 km/h (6 mi/h), 5 '& PJ'S s 10' or 9. 7 km/h (6 mi/h) + A V? ~ 19. 3 kin/h (12 mi/h), and AO&10' or BV? + 19. 3 km/h (12 nn/h) (18). Foreign Horizontal Curve Design... at the 85th percentile speed. Maximum side friction values for design speeds higher than 90 km/h (55. 9 mi/h) are more than those side fiiction values used by vehicles operating at the 85th percentile speed, due to the concerns of comfort and safety...

Voigt, Anthony Paul

2012-06-07T23:59:59.000Z

499

Predicted and actual productions of horizontal wells in heavy-oil fields  

Science Journals Connector (OSTI)

This paper discusses the comparison of predicted and actual cumulative and daily oil production. The predicted results were obtained from the use of Joshi's equation, wherein, the effects of anisotropy and eccentricity were included. The cumulative production obtained from the use of equations developed by Borisov, Giger, Renard and Dupuy resulted in errors in excess of 100%, thus, they were not considered applicable for predicting cumulative and daily flows of heavy oils in horizontal wells. The wells considered in this analysis varied from 537 to 1201 metres with corresponding well bores of 0.089 to. 0.110 m. Using Joshi's equation, the predicted cumulative oil-production was within a 20% difference for up to 12 months of production for long wells and up to 24 months for short wells. Short wells were defined as those being under 1000 m.

Peter Catania

2000-01-01T23:59:59.000Z

500

Solar: monthly and annual average global horizontal (GHI) GIS data at 10km  

Open Energy Info (EERE)

Kenya from DLR Kenya from DLR Dataset Summary Description (Abstract): Data of high resolution (10kmx10km) Global Horizontal Irradiance (GHI) for Kenya for the years 2000, 2001 and 2002. The data are available for monthly and annual sums stored in a ESRI-Shapefile. Please read the documentation file for additional information. (Purpose): The data are helpful for the assessment of the solar potential of the country and can give project developer a first impression of the solar resource of the country. Source DLR - Deutsches Zentrum für Luft- und Raumfahrt Date Released October 31st, 2004 (10 years ago) Date Updated November 01st, 2007 (7 years ago) Keywords DLR GEF GHI GIS Kenya NREL solar SWERA UNEP Data application/zip icon Download Shapefile (zip, 1.3 MiB) text/csv icon Download Data (csv, 2.5 MiB)