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1

Development Drilling | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Development Drilling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Development Drilling Details Activities (1) Areas (1) Regions (0) NEPA(9) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: Development Drilling Parent Exploration Technique: Drilling Techniques Information Provided by Technique Lithology: Identify lithology and mineralization, provide core samples and rock cuttings Stratigraphic/Structural: Retrieved samples can be used to identify stratigraphy and structural features such as fracture networks or faults Hydrological: -Water samples can be used for geochemical analysis -Fluid pressures can be used to estimate flow rates

2

Drilling Techniques | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Drilling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Drilling Techniques Details Activities (0) Areas (0) Regions (0) NEPA(20) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Identify lithology and mineralization, provide core samples and rock cuttings Stratigraphic/Structural: Retrieved samples can be used to identify stratigraphy and structural features such as fracture networks or faults Hydrological: -Water samples can be used for geochemical analysis -Fluid pressures can be used to estimate flow rates

3

Definition: Drilling Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Techniques Jump to: navigation, search Dictionary.png Drilling Techniques There are a variety of drilling techniques which can be used to sink a borehole into the ground. Each has its advantages and disadvantages, in terms of the depth to which it can drill, the type of sample returned, the costs involved and penetration rates achieved. There are two basic types of drills: drills which produce rock chips, and drills which produce core samples.[1] View on Wikipedia Wikipedia Definition Well drilling is the process of drilling a hole in the ground for the extraction of a natural resource such as ground water, brine, natural gas, or petroleum, for the injection of a fluid from surface to a subsurface reservoir or for subsurface formations evaluation or monitoring.

4

Downhole drilling network using burst modulation techniques  

DOE Patents (OSTI)

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

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

2007-04-03T23:59:59.000Z

5

WATERJETTING: A NEW DRILLING TECHNIQUE IN COALBED METHANE RESERVOIRS.  

E-Print Network (OSTI)

??WATERJETTING: A NEW DRILLING TECHNIQUE IN COALBED METHANE RESERVOIRS Applications of waterjeting to drill horizontal wells for the purpose of degassing coalbeds prior to mining (more)

Funmilayo, Gbenga M.

2010-01-01T23:59:59.000Z

6

DEVELOPMENT OF NEW DRILLING FLUIDS  

SciTech Connect

The goal of the project has been to develop new types of drill-in fluids (DIFs) and completion fluids (CFs) for use in natural gas reservoirs. Phase 1 of the project was a 24-month study to develop the concept of advanced type of fluids usable in well completions. Phase 1 tested this concept and created a kinetic mathematical model to accurately track the fluid's behavior under downhole conditions. Phase 2 includes tests of the new materials and practices. Work includes the preparation of new materials and the deployment of the new fluids and new practices to the field. The project addresses the special problem of formation damage issues related to the use of CFs and DIFs in open hole horizontal well completions. The concept of a ''removable filtercake'' has, as its basis, a mechanism to initiate or trigger the removal process. Our approach to developing such a mechanism is to identify the components of the filtercake and measure the change in the characteristics of these components when certain cleanup (filtercake removal) techniques are employed.

David B. Burnett

2003-08-01T23:59:59.000Z

7

Near-Term Developments in Geothermal Drilling  

SciTech Connect

The DOE Hard Rock Penetration program is developing technology to reduce the costs of drilling geothermal wells. Current projects include: R & D in lost circulation control, high temperature instrumentation, underground imaging with a borehole radar insulated drill pipe development for high temperature formations, and new technology for data transmission through drill pipe that can potentially greatly improve data rates for measurement while drilling systems. In addition to this work, projects of the Geothermal Drilling Organization are managed. During 1988, GDO projects include developments in five areas: high temperature acoustic televiewer, pneumatic turbine, urethane foam for lost circulation control, geothermal drill pipe protectors, an improved rotary head seals.

Dunn, James C.

1989-03-21T23:59:59.000Z

8

Microhole Drilling Tractor Technology Development  

SciTech Connect

In an effort to increase the U.S. energy reserves and lower costs for finding and retrieving oil, the USDOE created a solicitation to encourage industry to focus on means to operate in small diameter well-Microhole. Partially in response to this solicitation and because Western Well Tool's (WWT) corporate objective to develop small diameter coiled tubing drilling tractor, WWT responded to and was awarded a contract to design, prototype, shop test, and field demonstrate a Microhole Drilling Tractor (MDT). The benefit to the oil industry and the US consumer from the project is that with the MDT's ability to facilitate Coiled Tubing drilled wells to be 1000-3000 feet longer horizontally, US brown fields can be more efficiently exploited resulting in fewer wells, less environmental impact, greater and faster oil recovery, and lower drilling costs. Shortly after award of the contract, WWT was approached by a major oil company that strongly indicated that the specified size of a tractor of 3.0 inches diameter was inappropriate and that immediate applications for a 3.38-inch diameter tractor would substantially increase the usefulness of the tool to the oil industry. Based on this along with an understanding with the oil company to use the tractor in multiple field applications, WWT applied for and was granted a no-cost change-of-scope contract amendment to design, manufacture, assemble, shop test and field demonstrate a prototype a 3.38 inch diameter MDT. Utilizing existing WWT tractor technology and conforming to an industry developed specification for the tool, the Microhole Drilling Tractor was designed. Specific features of the MDT that increase it usefulness are: (1) Operation on differential pressure of the drilling fluid, (2) On-Off Capability, (3) Patented unique gripping elements (4) High strength and flexibility, (5) Compatibility to existing Coiled Tubing drilling equipment and operations. The ability to power the MDT with drilling fluid results in a highly efficient tool that both delivers high level of force for the pressure available and inherently increases downhole reliability because parts are less subject to contamination. The On-Off feature is essential to drilling to allow the Driller to turn off the tractor and pull back while circulating in cleanout runs that keep the hole clean of drilling debris. The gripping elements have wide contact surfaces to the formation to allow high loads without damage to the formation. As part of the development materials evaluations were conducted to verify compatibility with anticipated drilling and well bore fluids. Experiments demonstrated that the materials of the tractor are essentially undamaged by exposure to typical drilling fluids used for horizontal coiled tubing drilling. The design for the MDT was completed, qualified vendors identified, parts procured, received, inspected, and a prototype was assembled. As part of the assembly process, WWT prepared Manufacturing instructions (MI) that detail the assembly process and identify quality assurance inspection points. Subsequent to assembly, functional tests were performed. Functional tests consisted of placing the MDT on jack stands, connecting a high pressure source to the tractor, and verifying On-Off functions, walking motion, and operation over a range of pressures. Next, the Shop Demonstration Test was performed. An existing WWT test fixture was modified to accommodate operation of the 3.38 inch diameter MDT. The fixture simulated the tension applied to a tractor while walking (pulling) inside 4.0 inch diameter pipe. The MDT demonstrated: (1) On-off function, (2) Pulling forces proportional to available differential pressure up to 4000 lbs, (3) Walking speeds to 1100 ft/hour. A field Demonstration of the MDT was arranged with a major oil company operating in Alaska. A demonstration well with a Measured Depth of approximately 15,000 ft was selected; however because of problems with the well drilling was stopped before the planned MDT usage. Alternatively, functional and operational tests were run with the MDT insi

Western Well Tool

2007-07-09T23:59:59.000Z

9

Managed pressure drilling techniques and tools  

E-Print Network (OSTI)

these problems, the economics of drilling the wells will improve, thus enabling the industry to drill wells that were previously uneconomical. Managed pressure drilling (MPD) is a new technology that enables a driller to more precisely control annular pressures...

Martin, Matthew Daniel

2006-08-16T23:59:59.000Z

10

Russian techniques for more productive core drilling  

SciTech Connect

This is a short discussion of the trends and technology being used in Russia to increase the production of core drilling. The currently used rigs are given with the plans for improvement in drive methods and to reduce trip time in the recovery of cores. The recommendations by the Russians to improve the core recovery quality and quantity are also given.

Not Available

1984-09-01T23:59:59.000Z

11

Measurement-while-drilling (MWD) development for air drilling  

SciTech Connect

The objective of this program is to tool-harden and make commercially available an existing wireless MWD tool to reliably operate in an air, air-mist, or air-foam environment during Appalachian Basin oil and gas directional drilling operations in conjunction with downhole motors and/or (other) bottom-hole assemblies. The application of this technology is required for drilling high angle (holes) and horizontal well drilling in low-pressure, water sensitive, tight gas formations that require air, air-mist, and foam drilling fluids. The basic approach to accomplishing this objective was to modify GEC`s existing electromagnetic (e-m) ``CABLELESS``{trademark} MWD tool to improve its reliability in air drilling by increasing its tolerance to higher vibration and shock levels (hardening). Another important aim of the program is to provide for continuing availability of the resultant tool for use on DOE-sponsored, and other, air-drilling programs.

Rubin, L.A.; Harrison, W.H.

1992-06-01T23:59:59.000Z

12

Recent Developments in Geothermal Drilling Fluids  

SciTech Connect

In the past, standard drilling muds have been used to drill most geothermal wells. However, the harsh thermal and chemical environment and the unique geothermal formations have led to such problems as excessive thickening of the fluid, formation damage, and lost circulation. This paper describes three recent development efforts aimed at solving some of these drilling fluid problems. Each of the efforts is at a different stage of development. The Sandia aqueous foam studies are still in the laboratory phase, NL Baroid's polymeric deflocculant is soon to be field tested, and the Mudtech high-temperature mud was field tested several months ago. Low density and the capability to suspend particles at low relative velocities are two factors which make foam an attractive drilling fluid. The stability of these foams and their material properties at high temperatures are presently unknown and this lack of information has precluded their use as a geothermal drilling fluid. The aqueous foam studies being conducted at Sandia are aimed at screening available surfactants for temperature and chemical stability. Approximately 100 surfactants have been tested at temperatures of 260 and 310 C (500 and 590 F), and several of these candidates appear very promising. NL Baroid has developed a polymeric deflocculant for water-based muds which shows promise in retarding thermal degradation effects and associated gelation. Formulations containing this new polymer have shown good rheological properties up to 260 C (500 F) in laboratory testing. A high-temperature mud consisting primarily of sepiolite, bentonite, and brown coal has been developed by Mudtech, Inc. A field test of this mud was conducted in a geothermal well in the Imperial Valley of California in May 1980. The fluid exhibited good hole-cleaning characteristics and good rheological properties throughout the test.

Kelsey, J. R.; Rand, P. B.; Nevins, M. J.; Clements, W. R.; Hilscher, L. W.; Remont, L. J.; Matula, G. W.; Balley, D. N.

1981-01-01T23:59:59.000Z

13

Technology Development and Field Trials of EGS Drilling Systems  

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

Project objective: Development of drilling systems based upon rock penetration technologies not commonly employed in the geothermal industry.

14

Supporting technology for enhanced recovery, Annex V: evaluate application of recently developed techniques in the areas of drilling, coring, and telemetry. Venezuela-MEM/USA-DOE fossil-energy report V-1  

SciTech Connect

The Agreement between the United States and Venezuela was designed to further energy research and development in six areas. This report focuses on Annex V - Drilling, Coring, and Telemetry as supporting technology for enhanced oil recovery projects in the United States and Venezuela. Annex V consists of 18 tasks to perform these three projects. This report completes the work for Annex V. Energy research and development in the area of Enhanced Oil Recovery has as its goal the more efficient and complete production of the third crop of oil. Methods and techniques must be developed to assist in the implementation of EOR projects. Technology development that reduces costs and provides better reservoir information often has a direct impact on the economic viability of EOR projects and Annex V addresses these areas. Each of the three areas covered by Annex V are separate entities and are presented in this report as different sections. Each has its own Abstract. The drilling and coring tests were highly successful but only a limited amount of work was necessary in the Telemetry area because a field test was not feasible.

Williams, C.R.; Lichaa, P.; Van Domselaar, H.

1983-04-01T23:59:59.000Z

15

Development and Manufacture of Cost Effective Composite Drill Pipe  

SciTech Connect

This technical report presents the engineering research, process development and data accomplishments that have transpired to date in support of the development of Cost Effective Composite Drill Pipe (CDP). The report presents progress made from October 1, 2004 through September 30, 2005 and contains the following discussions: (1) Qualification Testing; (2) Prototype Development and Testing of ''Smart Design'' Configuration; (3) Field Test Demonstration; and (4) Commercial order for SR-CDP from Torch International. The objective of this contract is to develop and demonstrate ''cost effective'' Composite Drill Pipe. It is projected that this drill pipe will weigh less than half of its steel counter part. The resultant weight reduction will provide enabling technology that will increase the lateral distance that can be reached from an offshore drilling platform and the depth of water in which drilling and production operations can be carried out. Further, composite drill pipe has the capability to carry real time signal and power transmission within the pipe walls. CDP can also accommodate much shorter drilling radius than is possible with metal drill pipe. As secondary benefits, the lighter weight drill pipe can increase the storage capability of floating off shore drilling platforms and provide substantial operational cost savings.

James C. Leslie; James C. Leslie II; Lee Truong; James T. Heard; Steve Loya

2006-02-20T23:59:59.000Z

16

Development of a Hydrothermal Spallation Drilling System for EGS Geothermal  

Open Energy Info (EERE)

Hydrothermal Spallation Drilling System for EGS Geothermal Hydrothermal Spallation Drilling System for EGS Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Development of a Hydrothermal Spallation Drilling System for EGS Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Drilling Systems Project Description Potter Drilling has recently demonstrated hydrothermal spallation drilling in the laboratory. Hydrothermal spallation drilling creates boreholes using a focused jet of superheated water, separating individual grains ("spalls") from the rock surface without contact between the rock and the drill head. This process virtually eliminates the need for tripping. Previous tests of flame-jet spallation achieved ROP of 50 ft/hr and higher in hard rock with minimal wear on the drilling assembly, but operating this technology in an air-filled borehole created challenges related to cuttings transport and borehole stability. The Potter Drilling system uses a water based jet technology in a fluid-filled borehole and as a result has the potential to achieve similarly high ROP that is uncompromised by stability or cuttings transport issues.

17

Recent developments in geothermal drilling fluids  

SciTech Connect

Three recent development efforts are described, aimed at solving some of these drilling fluid problems. The Sandia aqueous foam studies are still in the laboratory phase; NL Baroid's polymeric deflocculant is being field tested; and the Mudtech high temperature mud was field tested several months ago. The aqueous foam studies are aimed at screening available surfactants for temperture and chemical stability. Approximately 100 surfactants have been tested at temperatures of 260/sup 0/C and 310/sup 0/C and several of these candidates appear very promising. A polymeric deflocculant was developed for water-based muds which shows promise in laboratory tests of retarding thermal degradation effects and associated gelation. Formulations containing this new polymer have shown good rheological properties up to 500/sup 0/F. A high temperature mud consisting primarily of sepiolite, bentonite, and brown coal has been developed. A field test of this mud was conducted in a geothermal well in the Imperial Valley of California in May of last year. The fluid exhibited good hole-cleaning characteristics and good rheological properties throughout the test. (MHR)

Kelsey, J.R.; Rand, P.B.; Nevins, M.J.; Clements, W.R.; Hilscher, L.W.; Remont, L.J.; Matula, G.W.; Bailey, D.N.

1981-01-01T23:59:59.000Z

18

Development and Testing of Insulated Drill Pipe  

SciTech Connect

This project has comprised design, analysis, laboratory testing, and field testing of insulated drill pipe (IDP). This paper will briefly describe the earlier work, but will focus on results from the recently-completed field test in a geothermal well. Field test results are consistent with earlier analyses and laboratory tests, all of which support the conclusion that insulated drill pipe can have a very significant effect on circulating fluid temperatures. This will enable the use of downhole motors and steering tools in hot wells, and will reduce corrosion, deterioration of drilling fluids, and heat-induced failures in other downhole components.

Champness, T.; Finger, J.; Jacobson, R.

1999-07-07T23:59:59.000Z

19

Development of a High-Temperature Diagnostics-While-Drilling...  

Office of Environmental Management (EM)

HT tool are provided. htdwdtools.pdf More Documents & Publications A History or Geothermal Energy Research and Development in the United States: Drilling 1976-2006 DOE-HDBK-1017...

20

Directional drilling techniques for exploration in-advance of mining  

SciTech Connect

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

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

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

Geothermal Drilling and Completion Technology Development Program. Quarterly progress report, October 1980-December 1980  

SciTech Connect

The progress, status, and results of ongoing Research and Development (R and D) within the Geothermal Drilling and Completion Technology Development Program are described. The program emphasizes the development of geothermal drilling hardware, drilling fluids, completion technology, and lost circulation control methods. Advanced drilling systems are also under development.

Kelsey, J.R. (ed.)

1981-03-01T23:59:59.000Z

22

Geothermal Drilling and Completion Technology Development Program. Quarterly progress report, January 1981-March 1981  

SciTech Connect

The progress, status, and results of ongoing Research and Development (R and D) within the Geothermal Drilling and Completion Technology Development Program are described. The program emphasizes the development of geothermal drilling hardware, drilling fluids, completion technology, and lost circulation control methods as they apply to advanced drilling systems.

Kelsey, J.R. (ed.)

1981-06-01T23:59:59.000Z

23

Techniques Employed to Conduct Postshot Drilling at the former Nevada Test Site  

SciTech Connect

Postshot drilling provided essential data on the results of the underground nuclear tests conducted at the Nevada Test Site (NTS), now identified as the Nevada National Security Site (NNSS). It was the means by which samples from the zone of interest were obtained for radiochemical analysis. This handbook describes how Lawrence Livermore National Laboratory (LLNL) conducted postshot drilling operations at the NTS, and it provides a general understanding of the process. Postshot drilling is a specialized application of rotary drilling. Accordingly, this handbook gives a brief description of rotary drilling in Section 2 to acquaint the reader with the general subject before proceeding to the specialized techniques used in postshot drilling. In Section 3, the handbook describes the typical postshot drilling situation at the former NTS and the drilling methods used. Section 4 describes the typical sequence of operations in postshot drilling at the former NTS. Detailed information on special equipment and techniques is given in a series of appendices (A through F) at the end of the handbook.

Dekin, W D

2011-04-14T23:59:59.000Z

24

The development and utilization of a high-speed laboratory rock drilling apparatus  

E-Print Network (OSTI)

Operations Data Analysis Techniques Effect of Drilling Parameters on Drilling Rate Observed Drilling Trends Page vi vi 1 ix 14 20 21 28 34 35 39 39 45 45 47 55 59 TABLE OF CONTENTS (continued) Comparison of Actual Penetration Rate... to Calculated Penetration Rate Problems Encountered With the Drilling Apparatus Future Application of the Drilling Apparatus CONCLUSIONS REFERENCES APPENDIX A: DATA ANALYSIS PROGRAM APPENDIX B: DIMENSIONLESS ANALYSIS PROGRAM VITA Page 90 97 98 100...

Day, Jeffrey Dale

2012-06-07T23:59:59.000Z

25

Williston Basin: An analysis of salt drilling techniques for brine-based drilling-fluid systems  

SciTech Connect

Williston Basin salt intervals, ranging in depth from 5,000 to 12,500 ft (1525 to 3810 m), have been responsible for widespread casing collapse because of the plastic movement of evaporites and the subsequent point loading of casing. This phenomenon is attributable to poor cement jobs across excessively eroded salt sections. A 2-year study led to the realization that this erosion is a function of not only salt dissolution but also the mechanical action of turbulent flow in the wellbore. A laminar flow regime can be realized and salt enlargement limited by careful control of annular flow rate, jet velocity, and drilling-fluid rheology.

Stash, S.M.; Jones, M.E.

1988-03-01T23:59:59.000Z

26

Geothermal drilling and completion technology development program. Quarterly progress report, April-June 1980  

SciTech Connect

The progress, status, and results of ongoing research and development (R and D) within the Geothermal Drilling and Completion Technology Development Program are reported. The program emphasizes the development of geothermal drilling hardware, drilling fluids, completion technology, and lost circulation control methods. Advanced drilling systems are also under development. The goals of the program are to develop the technology required to reduce well costs by 25% by 1983 and by 50% by 1987.

Varnado, S.G.

1980-07-01T23:59:59.000Z

27

Geothermal drilling and completion technology development program. Quarterly progress report, October-December 1979  

SciTech Connect

The progress, status, and results of ongoing Research and Development (R and D) within the Geothermal Drilling and Completion Technology Development Program are described. The program emphasizes the development of geothermal drilling hardware, drilling fluids, and completion technology. Advanced drilling systems are also under development. The goals of the program are to develop the technology required to reduce well costs by 25% by 1982 and by 50% by 1986.

Varnado, S.G. (ed.)

1980-01-01T23:59:59.000Z

28

DEVELOPMENT AND MANUFACTURE OF COST EFFECTIVE COMPOSITE DRILL PIPE  

SciTech Connect

This technical report presents the engineering research, process development and data accomplishments that have transpired to date in support of the development of Cost Effective Composite Drill Pipe (CDP). The report presents progress made from October 1, 2003 through September 30, 2004 and contains the following discussions: (1) Direct Electrical Connection for Rotary Shoulder Tool Joints; (2) Conductors for inclusion in the pipe wall (ER/DW-CDP); (3) Qualify fibers from Zoltek; (4) Qualify resin from Bakelite; (5) First commercial order for SR-CDP from Integrated Directional Resources (SR-CDP); and (6) Preparation of papers for publication and conference presentations.

James C. Leslie; James C. Leslie II; Lee Truong; James T. Heard; Peter Manekas

2005-03-18T23:59:59.000Z

29

Development plan for an advanced drilling system with real-time diagnostics (Diagnostics-While-Drilling)  

SciTech Connect

This proposal provides the rationale for an advanced system called Diagnostics-while-drilling (DWD) and describes its benefits, preliminary configuration, and essential characteristics. The central concept is a closed data circuit in which downhole sensors collect information and send it to the surface via a high-speed data link, where it is combined with surface measurements and processed through drilling advisory software. The driller then uses this information to adjust the drilling process, sending control signals back downhole with real-time knowledge of their effects on performance. The report presents background of related previous work, and defines a Program Plan for US Department of Energy (DOE), university, and industry cooperation.

FINGER,JOHN T.; MANSURE,ARTHUR J.; PRAIRIE,MICHAEL R.; GLOWKA,D.A.

2000-02-01T23:59:59.000Z

30

Drilling and blasting techniques and costs for strip mines in Appalachia  

SciTech Connect

On-site investigations of blasting techniques were conducted at twenty surface coal mining operations in the steep slopes of Appalachia. The mine sites represented a range of mountain mining methods and annual coal production levels; all sites used similar techniques and equipment for the removal of fragmented waste rock. Hole loading characteristics and constraints limiting blast designs were observed at each mine site. This report summarizes technical blasting data and geological conditions which require special design considerations. Three mine sites were selected for future research in fragmentation efficiency. Detailed economic data on drilling and blasting were gathered from the three research sites and are reported herein. A great deal of fragmentation difficulties stem from tough, unpredictable geology with specific bedding characteristics and local zones of defined structural weaknesses such as jointing and vertical seams. Exceptionally hard bedrock, existing as a caprock or as the basal layer above the coal seam, persists as the cause of oversize rock breakage or, in the latter case, damage to the coal unless special precautions are taken. Federal blasting regulations strictly control the amount of explosives used as well as throw of the fragmented rock. This requires that blasting modifications be employed. The nature and extent of blast modifications were observed to be related to terrain and demographic conditions around the mine site. Drilling and blasting costs reported for the three mine sites averaged $0.21 per cubic yard of material blasted. Drilling costs varied widely, as drilling time was indicative of geologies and often, drilling costs remained the greatest percentage of total blasting and drilling costs.

Aimone, C.T.

1980-06-01T23:59:59.000Z

31

Technology Development and Field Trials of EGS Drilling Systems  

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

Bauer Sandia National Laboratories High Temperature Tools and Sensors, Down-hole Pumps and Drilling May 19, 2010 This presentation does not contain any proprietary...

32

Using Bayesian Network to Develop Drilling Expert Systems  

E-Print Network (OSTI)

in foam UBD ............................................ 82 67 Overall air and gas UBD ........................................................................... 83 68 Rotary and hammer drilling options... .......................................................... 84 69 A list of limits and challenges for air and gas UBD .................................. 85 70 A list of possible gas drilling operations ................................................... 86 71 A list of possible rig equipment...

Alyami, Abdullah

2012-10-19T23:59:59.000Z

33

GRR/Section 5-NV-a - Drilling Well Development | Open Energy Information  

Open Energy Info (EERE)

5-NV-a - Drilling Well Development 5-NV-a - Drilling Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-NV-a - Drilling Well Development 05NVADrillingWellDevelopment.pdf Click to View Fullscreen Contact Agencies Nevada Division of Minerals Nevada Division of Water Resources Regulations & Policies Nevada Revised Statutes (NRS) Nevada Administrative Code (NAC) Triggers None specified Click "Edit With Form" above to add content 05NVADrillingWellDevelopment.pdf 05NVADrillingWellDevelopment.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative A person may not drill or operate a geothermal well or drill an exploratory well without obtaining a permit from the Administrator of the Nevada

34

Development of a Low-Cost Rotary Steerable Drilling System  

SciTech Connect

The project had the goal to develop and commercialize a low-cost rotary steerable system (LCRSS) capable of operating downhole at conventional pressures and temperatures to reduce operating costs by a minimum of 50% and lost-in-hole charges by at least 50% over the currently offered systems. The LCRSS system developed under this project does reduce operating costs by 55% and lost-in-hole charges by at least 50%. The developed product is not commercializable in its current form. The overall objective was to develop and commercialize a low cost rotary steerable system (LCRSS) capable of operating downhole at conventional pressures and temperatures (20,000 psi/150 C) while reducing the operating costs by 50% and the lost-in-hole charges by 50% over the currently available systems. The proposed reduction in costs were to be realized through the significant reduction in tool complexity, a corresponding increase in tool reliability as expressed in the mean-time between failure (MTBF), and a reduction in the time and costs required to service tools after each field operation. Ultimately, the LCRSS system was to be capable of drilling 7 7/8 in. to 9 5/8 in. borehole diameters. The project was divided into three Phases, of which Phases I & II were previously completed and reported on, and are part of the case file. Therefore, the previously reported information is not repeated herein. Phase III included the fabrication of two field ready prototypes that were to be subjected to a series of drilling tests at GTI Catoosa, DOE RMOTC, and at customer partnering wells, if possible, as appropriate in the timing of the field test objectives to fully exercise all elements of the LCRSS. These tests were conducted in an iterative process based on a performance/reliability improvement cycle with the goal of demonstrating the system met all aspects required for commercial viability. These tests were conducted to achieve continuous runs of 100+ hours with well trajectories that fully exercised the tool's build/turn/drop/hold target capabilities and its higher end ratings for bit weight, torque and rotary speed. The tool teardowns were rigorously analyzed at the conclusion of each field run to assess component wear rates and to fully document any detrimental behavior(s) observed.

Roney Nazarian

2012-01-31T23:59:59.000Z

35

GRR/Section 5-TX-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-TX-a - Drilling and Well Development GRR/Section 5-TX-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-TX-a - Drilling and Well Development 05TXADrillingAndWellDevelopment.pdf Click to View Fullscreen Contact Agencies Railroad Commission of Texas Texas Water Development Board Regulations & Policies 16 TAC 3.5: Application To Drill, Deepen, Reenter, or Plug Back 16 TAC 3.78: Fees and Financial Security Requirements 16 TAC 3.37: Statewide Spacing Rule 16 TAC 3.38: Well Densities 16 TAC 3.39: Proration and Drilling Units: Contiguity of Acreage and Exception 16 TAC 3.33: Geothermal Resource Production Test Forms Required Triggers None specified Click "Edit With Form" above to add content

36

Research and Development Activities in Geothermal Drilling, Completion, and Logging  

Science Journals Connector (OSTI)

Sandia National Laboratories manages the Geothermal Drilling and Completion Program for the US Department of Energy. The primary purpose of this program is to expand access to the geothermal resource by reduci...

John Finger

1985-01-01T23:59:59.000Z

37

GRR/Section 5-CA-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

5-CA-a - Drilling and Well Development 5-CA-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-CA-a - Drilling and Well Development 05CAADrillingApplicationProcess (1).pdf Click to View Fullscreen Contact Agencies California Department of Conservation, Division of Oil, Gas, and Geothermal Resources Triggers None specified Click "Edit With Form" above to add content 05CAADrillingApplicationProcess (1).pdf 05CAADrillingApplicationProcess (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative The California Department of Conservation, Division of Oil and Gas (DOGGR) administers geothermal well drilling activities (permitting, drilling,

38

Drilling Methods | Open Energy Information  

Open Energy Info (EERE)

Drilling Methods Drilling Methods Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Drilling Methods Details Activities (0) Areas (0) Regions (0) NEPA(5) Exploration Technique Information Exploration Group: Exploration Sub Group: None Parent Exploration Technique: Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Drilling Methods: No definition has been provided for this term. Add a Definition References No exploration activities found. Document # Analysis Type Applicant Geothermal Area Lead Agency District Office Field Office Mineral Manager Surface Manager Development Phase(s) Techniques CA-170-02-15 EA Mammoth Pacific Long Valley Caldera Geothermal Area BLM BLM Central California District Office BLM Bishop Field Office BLM Geothermal/Exploration Drilling Methods

39

Chapter 4 Drilling Engineering  

Science Journals Connector (OSTI)

Publisher Summary Drilling operations are essentially carried out during all stages of the project life cycle (PLC) and in all types of environments. The main objectives of these operations includes: the acquisition of information and the safeguarding of production. Since the expenditure for drilling represents a large fraction of the total project's capital expenditure, an understanding of the techniques, equipment, and cost of drilling is very significant. This chapter focuses on the drilling activities. The chapter also explores the interactions between the drilling team and the other exploration and production (E&P) functions. Specifically, an initial successful exploration well can establish the presence of a working petroleum system. Following this, the data gathered in the first well is evaluated and the results are documented. The next step includes the appraisal of the accumulation requiring more wells. Finally, if the project is subsequently moved forward, development wells then needs to be engineered.

F. Jahn; M. Cook; M. Grahm

2008-01-01T23:59:59.000Z

40

GRR/Section 5-WA-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-WA-a - Drilling and Well Development GRR/Section 5-WA-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-WA-a - Drilling and Well Development 5-WA-a.pdf Click to View Fullscreen Contact Agencies Washington State Department of Natural Resources Regulations & Policies Geothermal Act 78.60 RCW Geothermal Rules 332-17 WAC Triggers None specified In Washington geothermal drilling and well development are regulated by the Washington State Department of Natural Resources (WSDNR). Geothermal production wells and core holes deeper than 750ft require the developer go through the whole WSDNR permitting process (which requires a public hearing) and require that the developer complete the State Environmental

Note: This page contains sample records for the topic "drilling techniques development" 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

Research on Application of Steering Drilling Technologies in Shale Gas Development  

Science Journals Connector (OSTI)

Abstract HF-1 well of Pengye is a sidetracking horizontal well for shale gas development, the directional segment of the well is long, high requirements for well trajectory control of the directional segment in construction process. In allusion to the features and challenges of this well drilling, this paper introduces the application of slide steering drilling system and rotary steerable drilling system in this well, including analyzing all these tool basic principle, the characteristics and field application. The analysis shows that using different angel screw drill tool can meet the needs of increasing hole angle, steadying hole angle and adjusting the orientation; Adoption of EZ-Pilot steerable rotary system solves the problem of remarkable resistance and low degree of hole cleanness in long horizontal section, and satisfies the requirement of drilling and completion of the well. The system also shows the desirable performance in improving ROP and hole quality.

Guang Xinjun; Li Jing

2014-01-01T23:59:59.000Z

42

GRR/Section 5-AK-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-AK-a - Drilling and Well Development GRR/Section 5-AK-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-AK-a - Drilling and Well Development 05AKADrillingWellDevelopment.pdf Click to View Fullscreen Contact Agencies Alaska Oil and Gas Conservation Commission Alaska Department of Natural Resources Regulations & Policies Alaska Statutes Alaska Administrative Code Triggers None specified Click "Edit With Form" above to add content 05AKADrillingWellDevelopment.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative All wells drilled in search or in support of the recovery of geothermal

43

Gel Evolution in Oil Based Drilling Fluids.  

E-Print Network (OSTI)

?? Drilling fluids make up an essential part of the drilling operation. Successful drilling operations rely on adequate drilling fluid quality. With the development of (more)

Sandvold, Ida

2012-01-01T23:59:59.000Z

44

Drilling operations change gear  

SciTech Connect

Predicts that several technological developments (e.g. measurement-while-drilling tools, computer data-gathering systems, improved drill bits, muds, downhole mud motors, and more efficient rigs) will have a major effect on drilling operations in the not-too-distant future. While several companies manufacture MWD systems and most can boast of successful runs, the major problem with the MWD system is cost. Manufacturers continue to make advances in both turbine and positive displacement mud motors. As the life span of downhole mud motors improves, these motors can economically compete with a rotary rig in drilling certain straight-hole intervals. Prototype bit designs include the use of lasers, electronic beams, flames, sparks, explosives, rocket exhaust, chains, projectiles, abrasive jets, and high-pressure erosion. Because drilling fluids are taking a large share of the drilling budget, mud engineers are trying to optimize costs, while maintaining well bore stability and increasing penetration rates. Many companies are taking the strategy of designing the simplest mud program possible and increasing additives only as needed. Air and foam drilling techniques are gaining attention. Concludes that as crude oil prices increase and the rig count begins to rebound, attention will once again turn to drilling technology and methodology.

Moore, S.D.

1982-08-01T23:59:59.000Z

45

WETTABILITY AND PREDICTION OF OIL RECOVERY FROM RESERVOIRS DEVELOPED WITH MODERN DRILLING AND COMPLETION FLUIDS  

SciTech Connect

The objectives of this project are: (1) to improve understanding of the wettability alteration of mixed-wet rocks that results from contact with the components of synthetic oil-based drilling and completion fluids formulated to meet the needs of arctic drilling; (2) to investigate cleaning methods to reverse the wettability alteration of mixed-wet cores caused by contact with these SBM components; and (3) to develop new approaches to restoration of wetting that will permit the use of cores drilled with SBM formulations for valid studies of reservoir properties.

Jill S. Buckley; Norman R. Morrow

2006-01-01T23:59:59.000Z

46

Instruments and Methods New technique for access-borehole drilling in shelf glaciers using  

E-Print Network (OSTI)

is penetration through hours for penetration through 200 m of ice, (2) installation of sensors up to 120 mm in diameter and (3 require lightweight, rapid-rate drilling equipment and a low logistical burden. A small drilling team

Howat, Ian M.

47

DEVELOPMENT AND TESTING OF UNDERBALANCED DRILLING PRODUCTS. Final Report, Oct 1995 - July 2001  

SciTech Connect

Underbalanced drilling is experiencing growth at a rate that rivals that of horizontal drilling in the mid-1980s and coiled-tubing drilling in the 1990s. Problems remain, however, for applying underbalanced drilling in a wider range of geological settings and drilling environments. This report addresses developments under this DOE project to develop products aimed at overcoming these problems. During Phase I of the DOE project, market analyses showed that up to 12,000 wells per year (i.e., 30% of all wells) will be drilled underbalanced in the U.S.A. within the next ten years. A user-friendly foam fluid hydraulics model (FOAM) was developed for a PC Windows environment during Phase I. FOAM predicts circulating pressures and flow characteristics of foam fluids used in underbalanced drilling operations. FOAM is based on the best available mathematical models, and was validated through comparison to existing models, laboratory test data and field data. This model does not handle two-phase flow or air and mist drilling where the foam quality is above 0.97. This FOAM model was greatly expanded during Phase II including adding an improved foam rheological model and a ''matching'' feature that allows the model to be field calibrated. During Phase I, a lightweight drilling fluid was developed that uses hollow glass spheres (HGS) to reduce the density of the mud to less than that of water. HGS fluids have several advantages over aerated fluids, including they are incompressible, they reduce corrosion and vibration problems, they allow the use of mud-pulse MWD tools, and they eliminate high compressor and nitrogen costs. Phase II tests showed that HGS significantly reduce formation damage with water-based drilling and completion fluids and thereby potentially can increase oil and gas production in wells drilled with water-based fluids. Extensive rheological testing was conducted with HGS drilling and completion fluids during Phase II. These tests showed that the HGS fluids act similarly to conventional fluids and that they have potential application in many areas, including underbalanced drilling, completions, and riserless drilling. Early field tests under this project are encouraging. These led to limited tests by industry (which are also described). Further field tests and cost analyses are needed to demonstrate the viability of HGS fluids in different applications. Once their effectiveness is demonstrated, they should find widespread application and should significantly reduce drilling costs and increase oil and gas production rates. A number of important oilfield applications for HGS outside of Underbalanced Drilling were identified. One of these--Dual Gradient Drilling (DGD) for deepwater exploration and development--is very promising. Investigative work on DGD under the project is reported, along with definition of a large joint-industry project resulting from the work. Other innovative products/applications are highlighted in the report including the use of HGS as a cement additive.

William C. Maurer; William J. McDonald; Thomas E. Williams; John H. Cohen

2001-07-01T23:59:59.000Z

48

Program plan for the development of advanced synthetic-diamond drill bits for hard-rock drilling  

SciTech Connect

Eight companys have teamed with Sandia Labs to work on five projects as part of a cooperative effort to advance the state of the ar in synthetic-diamond drill bit design and manufacture. DBS (a Baroid Company), Dennis Tool Company, Hughes Christensen Company, Maurer Engineering, Megadiamond, Security Diamond Products, Slimdril International, and Smith International. Objective of each project is to develop advanced bit technology that results in new commercial products with longer bit life and higher penetration rates in hard formations. Each project explores a different approach to synthetic-diamond cutter and bit design and, consequently, uses different approaches to developing the technology. Each of these approaches builds or the respective companies` capabilities and current product interests. Sandia`s role is to assure integration of the individual projects into a coherent program and tc provide unique testing and analytical capabilities where needed. One additional company, Amoco Production Research, will provide synthetic-diamond drill bit research expertise and field testing services for each project in the program.

Glowka, D.A.; Schafer, D.M.

1993-09-01T23:59:59.000Z

49

Sustainable Development of the Shale Gas Supply Chain and the Optimal Drilling Strategy for Nonconventional Wells  

Science Journals Connector (OSTI)

Abstract We present a long-term MINLP planning model for the development of shale gas fields. A key decision is the drilling/fracturing strategy yielding the freshwater consumption profile, which is critical in waterscarce regions with high cumulative demand for water. Results show that the model can help companies to reduce freshwater consumption by optimally planning drilling operations, at the expense of small reductions in the net present value of the projects.

Diego C. Cafaro; Ignacio E. Grossmann

2014-01-01T23:59:59.000Z

50

GRR/Section 5-CO-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

CO-a - Drilling and Well Development CO-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-CO-a - Drilling and Well Development 05COADrillingAndWellDevelopment (1).pdf Click to View Fullscreen Contact Agencies Colorado Division of Water Resources Colorado Oil and Gas Conservation Commission Regulations & Policies Rules and Regulations for Permitting the Development and Appropriation of Geothermal Resources Through the Use of Wells CRS 37-90.5-107 Triggers None specified Click "Edit With Form" above to add content 05COADrillingAndWellDevelopment (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range.

51

GRR/Section 5-OR-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

5-OR-a - Drilling and Well Development 5-OR-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-OR-a - Drilling and Well Development 05ORADrillingAndWellDevelopment.pdf Click to View Fullscreen Contact Agencies Oregon Department of Geology and Mineral Industries Oregon Water Resources Department Oregon Department of Fish and Wildlife Oregon Department of Environmental Quality Oregon Department of Land Conservation and Development Oregon Department of State Lands Oregon Department of Energy Oregon Parks and Recreation Department Regulations & Policies ORS 522.005(11) ORS 522.025 ORS 522.115 ORS 522.125 ORS 522.135 Triggers None specified Click "Edit With Form" above to add content 05ORADrillingAndWellDevelopment.pdf

52

GRR/Section 5-UT-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-UT-a - Drilling and Well Development GRR/Section 5-UT-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-UT-a - Drilling and Well Development 05UTADrillingAndWellDevelopment.pdf Click to View Fullscreen Contact Agencies Utah Division of Water Rights Regulations & Policies Utah Geothermal Resource Conservation Act Utah Administrative Code Section R655-1 Triggers None specified Click "Edit With Form" above to add content 05UTADrillingAndWellDevelopment.pdf 05UTADrillingAndWellDevelopment.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative Although not regulated under the Administrative Rules for Water Wells,

53

GRR/Section 5-ID-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

ID-a - Drilling and Well Development ID-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-ID-a - Drilling and Well Development 05IDADrillingWellDevelopment.pdf Click to View Fullscreen Contact Agencies Idaho Department of Water Resources Regulations & Policies IC §42-233: Appropriation of Water, Geothermal IC §42-4003: Permits IC §42-4004: Processing Applications IC §42-4011: Name of Owner Triggers None specified Click "Edit With Form" above to add content Best Practices Community outreach Talk to the local county Potential Roadblocks Incomplete applications result in longer approval times by IDWR 05IDADrillingWellDevelopment.pdf Error creating thumbnail: Page number not in range.

54

GRR/Section 5-MT-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-MT-a - Drilling and Well Development GRR/Section 5-MT-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-MT-a - Drilling and Well Development 05MTADrillingAndWellDevelopment (1).pdf Click to View Fullscreen Contact Agencies Montana Department of Natural Resources & Conservation Montana Department of Environmental Quality Regulations & Policies MCA 37-43-104: Monitoring Wells MCA 37-43-302: License Requirements MCA 37-43-306: Bonding Requirements Triggers None specified Click "Edit With Form" above to add content 05MTADrillingAndWellDevelopment (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range.

55

GRR/Section 5-HI-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-HI-a - Drilling and Well Development GRR/Section 5-HI-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-HI-a - Drilling and Well Development 05HIADrillingAndModificationOfWellsForInjectionUsePermit (1).pdf Click to View Fullscreen Contact Agencies Hawaii Department of Land and Natural Resources Engineering Division Regulations & Policies Hawaii Administrative Code §13-183-65 Draft Rules Triggers None specified Click "Edit With Form" above to add content 05HIADrillingAndModificationOfWellsForInjectionUsePermit (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range.

56

Developing safety indicators for preventing offshore oil and gas deepwater drilling blowouts  

Science Journals Connector (OSTI)

An important question with respect to the Macondo blowout is whether the accident is a symptom of systemic safety problems in the deepwater drilling industry. An answer to such a question is hard to obtain unless the risk level of the oil and gas (O&G) industry is monitored and evaluated over time. This article presents information and indicators from the Risk Level Project (RNNP) in the Norwegian O&G industry related to safety climate, barriers and undesired incidents, and discusses the relevance for deepwater drilling. The main focus of the major hazard indicators in RNNP is on production installations, whereas only a limited number of incident indicators and barrier indicators are related to mobile drilling units. The number of kicks is an important indicator for the whole drilling industry, because it is an incident with the potential to cause a blowout. Currently, the development and monitoring of safety indicators in the O&G industry seems to be limited to a short list of accepted indicators, but there is a need for more extensive monitoring and understanding. This article suggests areas of extensions of the indicators in RNNP for drilling based on experience from the Macondo blowout. The areas are related to schedule and cost, well planning, operational aspects, well incidents, operators well response, operational aspects and status of safety critical equipment. Indicators are suggested for some of the areas. For other areas, more research is needed to identify the indicators and their relevance and validity.

Jon Espen Skogdalen; Ingrid B. Utne; Jan Erik Vinnem

2011-01-01T23:59:59.000Z

57

Final report on the design and development of a Rolling Float Meter for drilling-fluid outflow measurement  

SciTech Connect

Lost circulation, which is the loss of well drilling fluids to the formation while drilling, is a common problem encountered while drilling geothermal wells. The rapid detection of the loss of well drilling fluids is critical to the successful and cost-effective treatment of the wellbore to stop or minimize lost circulation. Sandia National Laboratories has developed an instrument to accurately measure the outflow rate of drilling fluids while drilling. This instrument, the Rolling Float Meter, has been under development at Sandia since 1991 and is now available for utilization by interested industry users. This report documents recent Rolling Float Meter design upgrades resulting from field testing and industry input, the effects of ongoing testing and evaluation both in the laboratory and in the field, and the final design package that is available to transfer this technology to industry users.

Staller, G.E.; Westmoreland, J.J.; Whitlow, G.L.; Wright, E.K.; Glowka, D.A.

1998-03-01T23:59:59.000Z

58

New Techniques to Characterize and Remove Water-Based Drilling Fluids Filter Cake  

E-Print Network (OSTI)

Filter cake characterization is very important in drilling and completion operations. Heterogeneity of the filter cake plays a key role in the design of chemical treatments needed to remove the filter cake. The objectives of this study...

Elkatatny, Salaheldin Mahmoud

2013-03-29T23:59:59.000Z

59

Drilling into controversy: the educational complexity of shale gas development  

Science Journals Connector (OSTI)

Potential development of shale gas presents a complicated and controversial education problem. ... the concepts necessary for understanding the development of shale gas within the energy system as a complex, ... ...

Joseph A. Henderson; Don Duggan-Haas

2014-03-01T23:59:59.000Z

60

Rotary blasthole drilling update  

SciTech Connect

Blasthole drilling rigs are the unsung heroes of open-pit mining. Recently manufacturers have announced new tools. Original equipment manufactures (OEMs) are making safer and more efficient drills. Technology and GPS navigation systems are increasing drilling accuracy. The article describes features of new pieces of equipment: Sandvik's DR460 rotary blasthole drill, P & H's C-Series drills and Atlas Copco's Pit Viper PV275 multiphase rotary blasthole drill rig. DrillNav Plus is a blasthole navigation system developed by Leica Geosystems. 5 photos.

Fiscor, S.

2008-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

Toward a Domain-Specific Modeling Technique for Oil-Drilling Engineering Applications  

Science Journals Connector (OSTI)

Applications for oil-drilling engineering simulation are characterized with heterogeneous data and resources, complicated business processes and changing business requirements from users. It is of practical significance and great value to find out a ... Keywords: Domain Modeling, Service Component Architecture, Domain Engineering

Feng Jiao; Liping Wang; Chuanzhi Liu

2008-12-01T23:59:59.000Z

62

Development of a high-temperature diagnostics-while-drilling tool.  

SciTech Connect

The envisioned benefits of Diagnostics-While-Drilling (DWD) are based on the principle that high-speed, real-time information from the downhole environment will promote better control of the drilling process. Although in practice a DWD system could provide information related to any aspect of exploration and production of subsurface resources, the current DWD system provides data on drilling dynamics. This particular set of new tools provided by DWD will allow quicker detection of problems, reduce drilling flat-time and facilitate more efficient drilling (drilling optimization) with the overarching result of decreased drilling costs. In addition to providing the driller with an improved, real-time picture of the drilling conditions downhole, data generated from DWD systems provides researchers with valuable, high fidelity data sets necessary for developing and validating enhanced understanding of the drilling process. Toward this end, the availability of DWD creates a synergy with other Sandia Geothermal programs, such as the hard-rock bit program, where the introduction of alternative rock-reduction technologies are contingent on the reduction or elimination of damaging dynamic effects. More detailed descriptions of the rationale for the program and early development efforts are described in more detail by others [SAND2003-2069 and SAND2000-0239]. A first-generation low-temperature (LT) DWD system was fielded in a series of proof-of-concept tests (POC) to validate functionality. Using the LT system, DWD was subsequently used to support a single-laboratory/multiple-partner CRADA (Cooperative Research and Development Agreement) entitled Advanced Drag Bits for Hard-Rock Drilling. The drag-bit CRADA was established between Sandia and four bit companies, and involved testing of a PDC bit from each company [Wise, et al., 2003, 2004] in the same lithologic interval at the Gas Technology Institute (GTI) test facility near Catoosa, OK. In addition, the LT DWD system has been fielded in cost-sharing efforts with an industrial partner to support the development of new generation hard-rock drag bits. Following the demonstrated success of the POC DWD system, efforts were initiated in FY05 to design, fabricate and test a high-temperature (HT) capable version of the DWD system. The design temperature for the HT DWD system was 225 C. Programmatic requirements dictated that a HT DWD tool be developed during FY05 and that a working system be demonstrated before the end of FY05. During initial design discussions regarding a high-temperature system it was decided that, to the extent possible, the HT DWD system would maintain functionality similar to the low temperature system, that is, the HT DWD system would also be designed to provide the driller with real-time information on bit and bottom-hole-assembly (BHA) dynamics while drilling. Additionally, because of time and fiscal constraints associated with the HT system development, the design of the HT DWD tool would follow that of the LT tool. The downhole electronics package would be contained in a concentrically located pressure barrel and the use of externally applied strain gages with thru-tool connectors would also be used in the new design. Also, in order to maximize the potential wells available for the HT DWD system and to allow better comparison with the low-temperature design, the diameter of the tool was maintained at 7-inches. This report discusses the efforts associated with the development of a DWD system capable of sustained operation at 225 C. This report documents work performed in the second phase of the Diagnostics-While-Drilling (DWD) project in which a high-temperature (HT) version of the phase 1 low-temperature (LT) proof-of-concept (POC) DWD tool was built and tested. Descriptions of the design, fabrication and field testing of the HT tool are provided. Background on prior phases of the project can be found in SAND2003-2069 and SAND2000-0239.

Chavira, David J.; Huey, David (Stress Engineering Services, Inc.); Hetmaniak, Chris (Stress Engineering Services, Inc.); Polsky, Yarom; King, Dennis K.; Jacobson, Ronald David; Blankenship, Douglas Alan; Knudsen, Steven Dell; Henfling, Joseph Anthony; Mansure, Arthur James

2009-01-01T23:59:59.000Z

63

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

64

DEVELOPMENT OF GLASS AND GLASS CERAMIC PROPPANTS FROM GAS SHALE WELL DRILL CUTTINGS  

SciTech Connect

The objective of this study was to develop a method of converting drill cuttings from gas shale wells into high strength proppants via flame spheroidization and devitrification processing. Conversion of drill cuttings to spherical particles was only possible for small particle sizes (< 53 {micro}m) using a flame former after a homogenizing melting step. This size limitation is likely to be impractical for application as conventional proppants due to particle packing characteristics. In an attempt to overcome the particle size limitation, sodium and calcium were added to the drill cuttings to act as fluxes during the spheroidization process. However, the flame former remained unable to form spheres from the fluxed material at the relatively large diameters (0.5 - 2 mm) targeted for proppants. For future work, the flame former could be modified to operate at higher temperature or longer residence time in order to produce larger, spherical materials. Post spheroidization heat treatments should be investigated to tailor the final phase assemblage for high strength and sufficient chemical durability.

Johnson, F.; Fox, K.

2013-10-02T23:59:59.000Z

65

Development and applications of solids-free oil-in-water drilling fluids  

Science Journals Connector (OSTI)

The increasing application of near balanced drilling technology to low-pressure and depleted fractured reservoirs requires the use of low-density drilling fluids to avoid formation damage. Solids-free oil-in-wate...

Qiansheng Yue; Baoguo Ma

2008-05-01T23:59:59.000Z

66

Exploration Drilling | Open Energy Information  

Open Energy Info (EERE)

Exploration Drilling Exploration Drilling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Exploration Drilling Details Activities (0) Areas (0) Regions (0) NEPA(15) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: Exploration Drilling‎ Parent Exploration Technique: Drilling Techniques Information Provided by Technique Lithology: Identify lithology and mineralization, provide core samples and rock cuttings Stratigraphic/Structural: Retrieved samples can be used to identify stratigraphy and structural features such as fracture networks or faults Hydrological: -Water samples can be used for geochemical analysis -Fluid pressures can be used to estimate flow rates Thermal: -Temperatures can be measured within the hole

67

State-of-the-art in coalbed methane drilling fluids  

SciTech Connect

The production of methane from wet coalbeds is often associated with the production of significant amounts of water. While producing water is necessary to desorb the methane from the coal, the damage from the drilling fluids used is difficult to assess, because the gas production follows weeks to months after the well is drilled. Commonly asked questions include the following: What are the important parameters for drilling an organic reservoir rock that is both the source and the trap for the methane? Has the drilling fluid affected the gas production? Are the cleats plugged? Does the 'filtercake' have an impact on the flow of water and gas? Are stimulation techniques compatible with the drilling fluids used? This paper describes the development of a unique drilling fluid to drill coalbed methane wells with a special emphasis on horizontal applications. The fluid design incorporates products to match the delicate surface chemistry on the coal, a matting system to provide both borehole stability and minimize fluid losses to the cleats, and a breaker method of removing the matting system once drilling is completed. This paper also discusses how coal geology impacts drilling planning, drilling practices, the choice of drilling fluid, and completion/stimulation techniques for Upper Cretaceous Mannville-type coals drilled within the Western Canadian Sedimentary Basin. A focus on horizontal coalbed methane (CBM) wells is presented. Field results from three horizontal wells are discussed, two of which were drilled with the new drilling fluid system. The wells demonstrated exceptional stability in coal for lengths to 1000 m, controlled drilling rates and ease of running slotted liners. Methods for, and results of, placing the breaker in the horizontal wells are covered in depth.

Baltoiu, L.V.; Warren, B.K.; Natras, T.A.

2008-09-15T23:59:59.000Z

68

Geothermal Drilling Organization  

SciTech Connect

The Geothermal Drilling Organization (GDO), founded in 1982 as a joint Department of Energy (DOE)-Industry organization, develops and funds near-term technology development projects for reducing geothermal drilling costs. Sandia National Laboratories administers DOE funds to assist industry critical cost-shared projects and provides development support for each project. GDO assistance to industry is vital in developing products and procedures to lower drilling costs, in part, because the geothermal industry is small and represents a limited market.

Sattler, A.R.

1999-07-07T23:59:59.000Z

69

HydroPulse Drilling  

SciTech Connect

Tempress HydroPulse{trademark} tool increases overbalanced drilling rates by generating intense suction pulses at the drill bit. This report describes the operation of the tool; results of pressure drilling tests, wear tests and downhole drilling tests; and the business case for field applications. The HydroPulse{trademark} tool is designed to operate on weighted drilling mud at conventional flow rates and pressures. Pressure drilling tests confirm that the HydroPulse{trademark} tool provides 33% to 200% increased rate of penetration. Field tests demonstrated conventional rotary and mud motor drilling operations. The tool has been operated continuous for 50 hours on weighted mud in a wear test stand. This level of reliability is the threshold for commercial application. A seismic-while-drilling version of the tool was also developed and tested. This tool was used to demonstrate reverse vertical seismic profiling while drilling an inclined test well with a PDC bit. The primary applications for the HydroPulse{trademark} tool are deep onshore and offshore drilling where rate of penetration drives costs. The application of the seismic tool is vertical seismic profiling-while-drilling and look-ahead seismic imaging while drilling.

J.J. Kolle

2004-04-01T23:59:59.000Z

70

Effects of the terra nova offshore oil development on benthic macro-invertebrates over 10 Years of development drilling on the grand Banks of Newfoundland, Canada  

Science Journals Connector (OSTI)

Abstract This paper describes effects of drilling with water and synthetic-based drilling muds on benthic invertebrates over 10 years at the Terra Nova offshore oil development. As such, the paper provides insight on the effects of relatively new synthetic-based drilling muds (SBMs), and makes an important contribution to our understanding of the long-term chronic effects of drilling on benthic communities. The Terra Nova Field is located approximately 350km offshore on the Grand Banks of Newfoundland (Canada). Sediment and invertebrate samples were collected in 1997 (baseline) prior to drilling, and subsequently in 2000, 2001, 2002, 2004, 2006, 2008 and 2010. Approximately 50 stations were sampled in each year at distances of less than 1 to approximately 20km from drill centres. Summary benthic invertebrate community measures examined were total abundance, biomass, richness, diversity and multivariate measures of community composition based on non-Metric Dimensional Scaling (nMDS). Decreases in abundance, biomass and richness were noted at one station located nearest (0.14km) to a drill centre in some EEM (environmental effects monitoring) years. These decreases coincided with higher levels of tracers of drill muds in sediments (barium and >C10-C21 hydrocarbons). Abundances of selected individual taxa were also examined to help interpret responses when project-related effects on summary measures occurred. Enrichment effects on some tolerant taxa (e.g., the polychaete family Phyllodocidae and the bivalve family Tellinidae) and decreased abundances of sensitive taxa (e.g., the polychaete families Orbiniidae and Paraonidae) were detected to within approximately 1 to 2km from discharge source. Lagged responses three to five years after drilling started were noted for Phyllodocidae and Tellinidae, suggesting chronic or indirect effects. Overall, results of benthic community analyses at Terra Nova indicate that effects on summary measures of community composition were spatially limited but, as seen elsewhere, some taxa were more sensitive to drilling discharges.

Michael D. Paine; Elisabeth M. DeBlois; Bruce W. Kilgour; Ellen Tracy; Patricia Pocklington; Roger D. Crowley; Urban P. Williams; G. Gregory Janes

2014-01-01T23:59:59.000Z

71

Equipment and technique for improving penetration rate by the transformation of drill string vibration to hydraulic pulsating jet  

Science Journals Connector (OSTI)

Abstract To improve the down-hole drilling fluid energy and its utilization efficiency, a drilling string absorption and hydraulic pulsed jet generator was designed, its simulation model was established and simulation analysis was conducted, and its performance was tested in field application. Based on the idea of translating the energy of the drill string vibration into high pressure hydraulic pulsating jet energy, the structure of the device was designed and its working principle was analyzed, and then its simulation model was established. The simulation analysis results demonstrate that the device can produce the jet pressure 2 to 6 \\{MPa\\} higher than the nozzle pressure drop in conventional drilling. Field test results show that the device can improve the drilling speed significantly and extend the service life of the bit effectively; the device itself has steady performance and long service life, and can satisfy the drilling requirements.

Zhichuan GUAN; Hongning ZHANG; Wei ZHANG; Yongwang LIU; Deyang LIANG

2014-01-01T23:59:59.000Z

72

DEVELOPMENT OF A MUD-PULSE HIGH-TEMPERATURE MEASUREMENT-WHILE-DRILLING (MWD) SYSTEM  

SciTech Connect

The overall program objective is to develop a mud-pulse measurement-while-drilling (MWD) tool for oil and gas drilling operations that can be used where downhole temperatures are as high as 195 C (383 F). The work was planned to be completed in two phases: Phase I and an optional Phase II. The objectives of Phase I were first to identify critical components of existing MWD systems that can or cannot operate at 195 C. For components not able to meet the higher standard, one of several strategies was pursued: (1) locate high-temperature replacement components, (2) develop new designs that eliminate the unavailable components, or (3) use cooling to keep components at acceptable operating temperatures (under 195 C). New designs and components were then tested under high temperatures in the laboratory. The final goal of Phase I was to assemble two high-temperature MWD prototype tools and test each in at least one low-temperature well to verify total system performance. Phase II was also envisioned as part of this development. Its objective would be to test the two new high-temperature MWD prototype tools in wells being drilled in the United States where the bottom-hole temperatures were 195 C (or the highest temperatures attainable). The high-temperature MWD tool is designed to send directional and formation data to the surface via mud pulses, to aid in the drilling of guided wellbores. The modules that comprise the tool are housed in sealed barrels that protect the electronics from exposure to down-hole fluids and pressures. These pressure barrels are hung inside a non-magnetic collar located above the drilling assembly. A number of significant accomplishments were achieved during the course of the Phase I project, including: (1) Tested two MWD strings for function in an oven at 195 C; (2) Conducted field test of prototype 195 C MWD tool (at well temperatures up to 140-180 C); (3) Tested ELCON hybrid chip with processor, clock, and memory in a custom package for 700 hours at 200 C; (4) Contracted with APS Technology to conduct study of thermoelectric cooling of downhole electronics; (5) Conducted successful Peltier cooling test with APS Technology; (6) Tested and improved the electronics of Sperry Sun's Geiger Muller-based gamma detector for operation at 195 C; (7) Developed two high-temperature magnetometers (one in-house, one with Tensor); and (8) Encouraged outside source to develop lithium/magnesium high-temperature batteries (operating temperature of 125 to 215 C). One of this project's greatest achievements was improvement in Sperry Sun's current tool with changes made as a direct result of work performed under this project. These improvements have resulted in longer life and a more robust MWD tool at the previous temperature rating of 175 C, as well as at higher temperatures. A field test of two prototype 195 C MWD tools was conducted in Lavaca County, Texas. The purpose of this operation was to provide directional services on a sidetrack of a straight hole. The sidetrack was to intersect the formation up-dip above the water/gas interface. In addition, the gamma tool provided formation data including seam tops and thickness. Results from these field tests indicate progress in the development of a 195 C tool. Although the pulsers failed downhole in both tools, failure of the pulsers was determined to be from mechanical rather than electrical causes. Analysis of the economics of the 195 C tool highlights the greatest obstacle to future commercialization. Costs to screen individual components, then subassemblies, and finally completed tools for high-temperature operations are very high. Tests to date also show a relatively short life for high-temperature tools--on the order of 300 hours. These factors mean that the daily cost of the tool will be higher (3 to 5 times more) than a conventional tool.

John H. Cohen; Greg Deskins; William Motion; Jay Martin

2002-01-01T23:59:59.000Z

73

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

74

Geothermal COMPAX drill bit development. Final technical report, July 1, 1976-September 30, 1982  

SciTech Connect

The objective was to develop and demonstrate the performance of new drill bit designs utilizing sintered polycrystalline diamond compacts for the cutting edges. The scope included instrumented rock cutting experiments under ambient conditions and at elevated temperature and pressure, diamond compact wear and failure mode analysis, rock removal modeling, bit design and fabrication, full-scale laboratory bit testing, field tests, and performance evaluation. A model was developed relating rock cutting forces to independent variables, using a statistical test design and regression analysis. Experiments on six rock types, covering a range of compressive strengths from 8 x 10/sup 3/ psi to 51 x 10/sup 3/ psi, provided a satisfactory test of the model. Results of the single cutter experiments showed that the cutting and thrust (penetration) forces, and the angle of the resultant force, are markedly affected by rake angle, depth of cut, and speed. No unusual force excursions were detected in interrupted cutting. Wear tests on two types of diamond compacts cutting Jack Fork Sandstone yielded wear rates equivalent at high cutting speeds, where thermal effects are probably operative. At speeds below approx. 400 surface feet per minute (sfm), the coarser sintered diamond product was superior. 28 refs., 235 figs., 55 tabs.

Hibbs, L.E. Jr.; Sogoian, G.C.; Flom, D.G.

1984-04-01T23:59:59.000Z

75

The effect of the 2010 Gulf oil spill on public attitudes toward offshore oil drilling and wind development  

Science Journals Connector (OSTI)

Abstract In April 2010, the Deepwater Horizon oil well exploded, releasing over four million barrels of oil into the Gulf of Mexico. This paper presents data from two national mail surveys undertaken in 2008 and 2010 that compare public attitudes to both offshore oil drilling and offshore wind development pre- and post-spill. The results show that while there was a drop in support for expanded drilling (from 66% in 2008 to 59% in 2010) the change was not significant. There was, however, a significant decrease in support for offshore drilling among coastal residents. There was a slight, non-significant increase in support for offshore wind development which remained significantly higher than support for offshore oil (80% in 2008 and 82% in 2010). Despite there being no significant change in overall support levels, there was a shift in the strength of feeling regarding offshore oil, with 80% of Americans either less supportive or more opposed to expanded drilling in 2010 than they were in 2008.

Jonathan Lilley; Jeremy Firestone

2013-01-01T23:59:59.000Z

76

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

77

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

78

Development of a method for predicting the performance and wear of PDC (polycrystalline diamond compact) drill bits  

SciTech Connect

A method is developed for predicting cutter forces, temperatures, and wear on PDC bits as well as integrated bit performance parameters such as weight-on-bit, drilling torque, and bit imbalance. A computer code called PDCWEAR has been developed to make this method available as a tool for general bit design and analysis. The method uses single-cutter data to provide a measure of rock drillability and employs theoretical considerations to account for interaction among closely spaced cutters on the bit. Experimental data are presented to establish the effects of cutter size and wearflat area on the forces that develop during rock cutting. Waterjet assistance is shown to significantly reduce cutting forces, thereby potentially extending bit life and reducing weight-on-bit and torque requirements in hard rock. The effects of several other design and operating parameters on bit life and drilling performance are also investigated.

Glowka, D.A.

1987-09-01T23:59:59.000Z

79

Managed Pressure Drilling Candidate Selection  

E-Print Network (OSTI)

. Rodolphe Leschot invented and patented the earliest form of diamond core drills. T. F. Rowland patented an ?offshore rotary drilling rig?. Captain Lucas, with his Spindletop field wells, Earle Halliburton with his cementing service company, inventors... is the ancient water and brine wells drilled from the prehistoric eras to not so modern times. The second stage is the drilling of the earliest oil wells, and development of basic derricks, rigs, and cable tool rigs. The third stage is the development of rotary...

Nauduri, Anantha S.

2010-07-14T23:59:59.000Z

80

OFFSHORE DRILLING REVISITED  

Science Journals Connector (OSTI)

OFFSHORE DRILLING REVISITED ... Congress and the Obama Administration weigh the benefits and risks of expanded OIL AND GAS PRODUCTION ... ENERGY INDUSTRY OFFICIALS, coastal states, and environmental activists are clashing over whether Congress and the Obama Administration should allow offshore drilling for oil and natural gas in federal waters that until last year were off limits to development. ...

GLENN HESS

2009-03-23T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

Live pathogens: rapid detection technique developed  

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

January » January » Live Pathogens: Rapid Detection Technique Developed Live pathogens: rapid detection technique developed The technique relies on bacteria being critically dependent upon the key nutrient iron. January 24, 2013 Colorized scanning electron micrograph of E. coli. Colorized scanning electron micrograph of E. coli. Photo credit: US Centers for Disease Control and Prevention LANL's new method eliminates the need for laboratory culture and greatly speeds the process. Los Alamos researchers have developed a better technique for quick detection of live pathogens in the field. Identification of viable bacteria in a complex environment is scientifically challenging. Current detection and diagnostic techniques are inadequate in major public health emergencies, such as outbreaks of food-borne illness. Detection of live

82

Development of a High-Temperature Diagnostics-While-Drilling Tool  

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

This report documents work performed in the second phase of the Diagnostics-While-Drilling (DWD) project in which a high-temperature (HT) version of the phase 1 low-temperature (LT) proof-of-concept (POC) DWD tool was built and tested. Descriptions of the design, fabrication and field testing of the HT tool are provided.

83

Heterogeneous Shallow-Shelf Carbonate Buildups in the Paradox Basin, Utah and Colorado: Targets for Increased Oil Production and Reserves Using Horizontal Drilling Techniques  

SciTech Connect

The primary objective of this project was to enhance domestic petroleum production by demonstration and transfer of horizontal drilling technology in the Paradox basin, Utah, Colorado, Arizona, and New Mexico. If this project can demonstrate technical and economic feasibility, then the technique can be applied to approximately 100 additional small fields in the Paradox basin alone, and result in increased recovery of 25 to 50 million barrels (40-80 million m3) of oil. This project was designed to characterize several shallow-shelf carbonate reservoirs in the Pennsylvania (Desmoinesian) Paradox Formation, choose the best candidate(s) for a pilot demonstration project to drill horizontally from existing vertical wells, monitor well performances, and report associated validation activities.

Chidsey, Thomas C. Jr.; Eby, David E.; Wray, Laura L.

2001-04-19T23:59:59.000Z

84

Heterogeneous Shallow-Shelf Carbonate Buildups in the Paradox Basin, Utah and Colorado: Targets for Increased Oil Production and Reserves Using Horizontal Drilling Techniques  

SciTech Connect

The project's primary objective was to enhance domestic petroleum production by demonstration and transfer of horizontal drilling technology in the Paradox Basin, Utah, Colorado, Arizona, and New Mexico. If this project can demonstrate technical and economic feasibility, then the technique can be applied to approximately 100 additional small fields in the Paradox Basin alone, and result in increased recovery of 25 to 50 million barrels (4-8 million m3) of oil. This project was designed to characterize several shallow-shelf carbonate reservoirs in the Pennsylvanian (Desmoinesian) Paradox Formation, choose the best candidate(s) for a pilot demonstration project to drill horizontally from existing vertical wells, monitor well performance(s), and report associated validation activities.

Chidsey, Jr., Thomas C.; Eby, David E.; Wray, Laural L.

2001-11-26T23:59:59.000Z

85

Advanced drilling systems study.  

SciTech Connect

This report documents the results of a study of advanced drilling concepts conducted jointly for the Natural Gas Technology Branch and the Geothermal Division of the U.S. Department of Energy. A number of alternative rock cutting concepts and drilling systems are examined. The systems cover the range from current technology, through ongoing efforts in drilling research, to highly speculative concepts. Cutting mechanisms that induce stress mechanically, hydraulically, and thermally are included. All functions necessary to drill and case a well are considered. Capital and operating costs are estimated and performance requirements, based on comparisons of the costs for alternative systems to conventional drilling technology, are developed. A number of problems common to several alternatives and to current technology are identified and discussed.

Pierce, Kenneth G.; Livesay, Billy Joe; Finger, John Travis (Livesay Consultants, Encintas, CA)

1996-05-01T23:59:59.000Z

86

Cost effectiveness of sonic drilling  

SciTech Connect

Sonic drilling (combination of mechanical vibrations and rotary power) is an innovative environmental technology being developed in cooperation with DOE`s Arid-Site Volatile Organic Compounds Integrated Demonstration at Hanford and the Mixed Waste Landfill Integrated Demonstration at Sandia. This report studies the cost effectiveness of sonic drilling compared with cable-tool and mud rotary drilling. Benefit of sonic drilling is its ability to drill in all types of formations without introducing a circulating medium, thus producing little secondary waste at hazardous sites. Progress has been made in addressing the early problems of failures and downtime.

Masten, D.; Booth, S.R.

1996-03-01T23:59:59.000Z

87

Development of a model to calculate mechanical specific energy for air hammer drilling systems  

E-Print Network (OSTI)

. Finger 9 did a study of mining and oilfield hammers and showed that industrial hammers could drill more than twice as fast as extremely high WOB rotary air and that the ROP with industrial hammers was three to six times as fast as with oilfield hammers.... Finger identified sensitivity to WOB and gauge wear as two potential problems with the application of the industrial/mining hammer in the oilfield. Pratt 10 elucidated on the above potential problem with ROP in his paper where he talked about...

Okuchaba, Boma Jeremiah

2009-05-15T23:59:59.000Z

88

Techniques to develop data for hydrogeochemical models  

SciTech Connect

The utility industry, through its research and development organization, the Electric Power Research Institute (EPRI), is developing the capability to evaluate potential migration of waste constitutents from utility disposal sites to the environment. These investigations have developed computer programs to predict leaching, transport, attenuation, and fate of inorganic chemicals. To predict solute transport at a site, the computer programs require data concerning the physical and chemical conditions that affect solute transport at the site. This manual provides a comprehensive view of the data requirements for computer programs that predict the fate of dissolved materials in the subsurface environment and describes techniques to measure or estimate these data. In this manual, basic concepts are described first and individual properties and their associated measurement or estimation techniques are described later. The first three sections review hydrologic and geochemical concepts, discuss data requirements for geohydrochemical computer programs, and describe the types of information the programs produce. The remaining sections define and/or describe the properties of interest for geohydrochemical modeling and summarize available technique to measure or estimate values for these properties. A glossary of terms associated with geohydrochemical modeling and an index are provided at the end of this manual. 318 refs., 9 figs., 66 tabs.

Thompson, C.M.; Holcombe, L.J.; Gancarz, D.H.; Behl, A.E. (Radian Corp., Austin, TX (USA)); Erickson, J.R.; Star, I.; Waddell, R.K. (Geotrans, Inc., Boulder, CO (USA)); Fruchter, J.S. (Battelle Pacific Northwest Lab., Richland, WA (USA))

1989-12-01T23:59:59.000Z

89

Deep Drilling Basic Research: Volume 4 - System Description. Final Report, November 1988--August 1990  

SciTech Connect

The first section of this Volume will discuss the ''Conventional Drilling System''. Today's complex arrangement of numerous interacting systems has slowly evolved from the very simple cable tool rigs used in the late 1800s. Improvements to the conventional drilling rig have varied in size and impact over the years, but the majority of them have been evolutionary modifications. Each individual change or improvement of this type does not have significant impact on drilling efficiency and economics. However, the change is almost certain to succeed, and over time--as the number of evolutionary changes to the system begin to add up--improvements in efficiency and economics can be seen. Some modifications, defined and described in this Volume as Advanced Modifications, have more than just an evolutionary effect on the conventional drilling system. Although the distinction is subtle, there are several examples of incorporated advancements that have had significantly more impact on drilling procedures than would a truly evolutionary improvement. An example of an advanced modification occurred in the late 1970s with the introduction of Polycrystalline Diamond Compact (PDC) drill bits. PDC bits resulted in a fundamental advancement in drilling procedures that could not have been accomplished by an evolutionary improvement in materials metallurgy, for example. The last drilling techniques discussed in this Volume are the ''Novel Drilling Systems''. The extent to which some of these systems have been developed varies from actually being tested in the field, to being no more than a theoretical concept. However, they all have one thing in common--their methods of rock destruction are fundamentally different from conventional drilling techniques. When a novel drilling system is introduced, it is a revolutionary modification of accepted drilling procedures and will completely replace current techniques. The most prominent example of a revolutionary modification in recent history was the complete displacement of cable tool rigs by rotary drilling rigs in the late 1920s.

Anderson, E.E.; Maurer, W.C.; Hood, M.; Cooper, G.; Cook, N.

1990-06-01T23:59:59.000Z

90

DOE-Sponsored Project Pushes the Limits of Seismic-While-Drilling  

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

Project Pushes the Limits of Seismic-While-Drilling Project Pushes the Limits of Seismic-While-Drilling Technology DOE-Sponsored Project Pushes the Limits of Seismic-While-Drilling Technology August 12, 2009 - 1:00pm Addthis Washington, DC - In a project sponsored by the U.S. Department of Energy, Technology International Inc. has developed a breakthrough borehole imaging system that stands on the cusp of commercialization. By pushing the limits of seismic-while-drilling technology, the patent-pending SeismicPULSER system provides more accurate geo-steering for the discovery of new oil and natural gas reserves, facilitating new field development and improving well economics. Drill-bit seismic-while-drilling techniques use a downhole acoustic source and receivers at the surface to create real-time images that allow

91

Alterations in bottom sediment physical and chemical Characteristics at the terra nova offshore oil development over ten Years of Drilling on the grand Banks of Newfoundland, Canada.  

Science Journals Connector (OSTI)

Abstract This paper describes sediment composition at the Terra Nova offshore oil development. The Terra Nova Field is located on the Grand Banks approximately 350km southeast of Newfoundland, Canada, at an approximate water depth of 100m. Surface sediment samples (upper 3cm) were collected for chemical and particle size analyses at the site pre-development (1997) and in 2000, 2001, 2002, 2004, 2006, 2008 and 2010. Approximately 50 stations have been sampled in each program year, with stations extending from less than 1km to a maximum of 20km from source (drill centres) along five gradients, extending to the southeast, southwest, northeast, northwest and east of Terra Nova. Results show that Terra Nova sediments were contaminated with >C10-C21 hydrocarbons and barium - the two main constituents of synthetic-based drilling muds used at the site. Highest levels of contamination occurred within 1 to 2km from source, consistent with predictions from drill cuttings dispersion modelling. The strength of distance gradients for >C10-C21 hydrocarbons and barium, and overall levels, generally increased as drilling progressed but decreased from 2006 to 2010, coincident with a reduction in drilling. As seen at other offshore oil development sites, metals other than barium, sulphur and sulphide levels were elevated and sediment fines content was higher in the immediate vicinity (less than 0.5km) of drill centres in some sampling years; but there was no strong evidence of project-related alterations of these variables. Overall, sediment contamination at Terra Nova was spatially limited and only the two major constituents of synthetic-based drilling muds used at the site, >C10-C21 hydrocarbons and barium, showed clear evidence of project-related alternations.

Elisabeth M. DeBlois; Michael D. Paine; Bruce W. Kilgour; Ellen Tracy; Roger Crowley; Urban P. Williams; G.Gregory Janes

2014-01-01T23:59:59.000Z

92

Advances in Drilling Technology -E-proceedings of the First International Conference on Drilling Technology (ICDT -2010) and National Workshop on Manpower Development in Petroleum Engineering (NWMDPE -2010), November 18-21, 2010.  

E-Print Network (OSTI)

of Technology Madras, Chennai (TN) - 600 036, India. Transfer of experience for improved oil well drilling Pål The drilling process is getting increasingly more complex as oil fields mature and technology evolves actions. KEYWORDS: Oil well drilling, experience transfer, ontology, drilling failure, downtime, case

Aamodt, Agnar

93

Evaluation of Emerging Technology for Geothermal Drilling and...  

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

Technology for Geothermal Drilling and Logging Applications Technology Development and Field Trials of EGS Drilling Systems GEA Geothermal Summit Presentation Lauren Boyd...

94

HETEROGENEOUS SHALLOW-SHELF CARBONATE BUILDUPS IN THE PARADOX BASIN, UTAH AND COLORADO: TARGETS FOR INCREASED OIL PRODUCTION AND RESERVES USING HORIZONTAL DRILLING TECHNIQUES  

SciTech Connect

The Paradox Basin of Utah, Colorado, Arizona, and New Mexico contains nearly 100 small oil fields producing from carbonate buildups within the Pennsylvanian (Desmoinesian) Paradox Formation. These fields typically have one to 10 wells with primary production ranging from 700,000 to 2,000,000 barrels (111,300-318,000 m{sup 3}) of oil per field and a 15 to 20 percent recovery rate. At least 200 million barrels (31.8 million m{sup 3}) of oil will not be recovered from these small fields because of inefficient recovery practices and undrained heterogeneous reservoirs. Several fields in southeastern Utah and southwestern Colorado are being evaluated as candidates for horizontal drilling and enhanced oil recovery from existing, vertical, field wells based upon geological characterization and reservoir modeling case studies. Geological characterization on a local scale is focused on reservoir heterogeneity, quality, and lateral continuity, as well as possible reservoir compartmentalization, within these fields. This study utilizes representative cores, geophysical logs, and thin sections to characterize and grade each field's potential for drilling horizontal laterals from existing development wells. The results of these studies can be applied to similar fields elsewhere in the Paradox Basin and the Rocky Mountain region, the Michigan and Illinois Basins, and the Midcontinent region. This report covers research activities for the first half of the third project year (April 6 through October 5, 2002). This work included capillary pressure/mercury injection analysis, scanning electron microscopy, and pore casting on selected samples from Cherokee and Bug fields, Utah. The diagenetic fabrics and porosity types found at these fields are indicators of reservoir flow capacity, storage capacity, and potential for enhanced oil recovery via horizontal drilling. The reservoir quality of Cherokee and Bug fields has been affected by multiple generations of dissolution, anhydrite plugging, and various types of cementation which act as barriers or baffles to fluid flow. The most significant diagenetic characteristics are microporosity (Cherokee field) and micro-boxwork porosity (Bug field), as shown from porethroat radii histograms, and saturation profiles generated from the capillary pressure/mercury injection analysis, and identified by scanning electron microscopy and pore casting. These porosity types represent important sites for untapped hydrocarbons and primary targets for horizontal drilling. Technology transfer activities consisted of exhibiting a booth display of project materials at the Rocky Mountain Section meeting of the American Association of Petroleum Geologists, a technical presentation, and publications. The project home page was updated for the Utah Geological Survey Internet web site.

Thomas C. Chidsey, Jr.

2002-12-01T23:59:59.000Z

95

Downhole Temperature Prediction for Drilling Geothermal Wells  

SciTech Connect

Unusually high temperatures are encountered during drilling of a geothermal well. These temperatures affect every aspect of drilling, from drilling fluid properties to cement formulations. Clearly, good estimates of downhole temperatures during drilling would be helpful in preparing geothermal well completion designs, well drilling plans, drilling fluid requirements, and cement formulations. The thermal simulations in this report were conducted using GEOTEMP, a computer code developed under Sandia National Laboratories contract and available through Sandia. Input variables such as drilling fluid inlet temperatures and circulation rates, rates of penetration, and shut-in intervals were obtained from the Imperial Valley East Mesa Field and the Los Alamos Hot Dry Rock Project. The results of several thermal simulations are presented, with discussion of their impact on drilling fluids, cements, casing design, and drilling practices.

Mitchell, R. F.

1981-01-01T23:59:59.000Z

96

Thermal stress on bottom hole rock of gas drilling  

Science Journals Connector (OSTI)

Gas drilling has higher penetration than mud drilling. The greatest reason for this phenomenon with gas is that the gas is greatly cooled by expansion as it passes through the bit and thereby cools the bottom of the hole. The thermal stress at bottom-hole occurs during this process. The concept of thermal crushing of rocks is analysed in this study. The theoretical methods are developed to analyse thermal stresses and fragmentation induced by cooling of rock. Then, the numerical computation is conducted for the thermal stress equations with the numerical result simulated for the temperature field at the bottom hole to explain the reason of high drilling rates in gas drilling. Furthermore, an experiment was conducted to verify the theory. Therefore, the theories and simulated results in this paper have a guiding signification for best understand the technique and possibly to extend its economic advantage still further. [Received: September 23, 2011; Accepted: November 20, 2011

Shunji Yang; Gonghui Liu; Jun Li

2012-01-01T23:59:59.000Z

97

HYDRATE CORE DRILLING TESTS  

SciTech Connect

The ''Methane Hydrate Production from Alaskan Permafrost'' project is a three-year endeavor being conducted by Maurer Technology Inc. (MTI), Noble, and Anadarko Petroleum, in partnership with the U.S. DOE National Energy Technology Laboratory (NETL). The project's goal is to build on previous and ongoing R&D in the area of onshore hydrate deposition. The project team plans to design and implement a program to safely and economically drill, core and produce gas from arctic hydrates. The current work scope includes drilling and coring one well on Anadarko leases in FY 2003 during the winter drilling season. A specially built on-site core analysis laboratory will be used to determine some of the physical characteristics of the hydrates and surrounding rock. Prior to going to the field, the project team designed and conducted a controlled series of coring tests for simulating coring of hydrate formations. A variety of equipment and procedures were tested and modified to develop a practical solution for this special application. This Topical Report summarizes these coring tests. A special facility was designed and installed at MTI's Drilling Research Center (DRC) in Houston and used to conduct coring tests. Equipment and procedures were tested by cutting cores from frozen mixtures of sand and water supported by casing and designed to simulate hydrate formations. Tests were conducted with chilled drilling fluids. Tests showed that frozen core can be washed out and reduced in size by the action of the drilling fluid. Washing of the core by the drilling fluid caused a reduction in core diameter, making core recovery very difficult (if not impossible). One successful solution was to drill the last 6 inches of core dry (without fluid circulation). These tests demonstrated that it will be difficult to capture core when drilling in permafrost or hydrates without implementing certain safeguards. Among the coring tests was a simulated hydrate formation comprised of coarse, large-grain sand in ice. Results with this core showed that the viscosity of the drilling fluid must also be carefully controlled. When coarse sand was being cored, the core barrel became stuck because the drilling fluid was not viscous enough to completely remove the large grains of sand. These tests were very valuable to the project by showing the difficulties in coring permafrost or hydrates in a laboratory environment (as opposed to a field environment where drilling costs are much higher and the potential loss of equipment greater). Among the conclusions reached from these simulated hydrate coring tests are the following: Frozen hydrate core samples can be recovered successfully; A spring-finger core catcher works best for catching hydrate cores; Drilling fluid can erode the core and reduces its diameter, making it more difficult to capture the core; Mud must be designed with proper viscosity to lift larger cuttings; and The bottom 6 inches of core may need to be drilled dry to capture the core successfully.

John H. Cohen; Thomas E. Williams; Ali G. Kadaster; Bill V. Liddell

2002-11-01T23:59:59.000Z

98

Heterogeneous Shallow-Shelf Carbonate Buildups in the Paradox Basin, Utah and Colorado: Targets for Increased Oil Production and Reserves Using Horizontal Drilling Techniques  

SciTech Connect

The Paradox Basin of Utah, Colorado, Arizona, and New Mexico contains nearly 100 small oil fields producing from carbonate buildups within the Pennsylvanian (Desmoinesian) Paradox Formation. These fields typically have one to 10 wells with primary production ranging from 700,000 to 2,000,000 barrels (111,300-318,000 m{sup 3}) of oil per field and a 15 to 20 percent recovery rate. At least 200 million barrels (31.8 million m{sup 3}) of oil will not be recovered from these small fields because of inefficient recovery practices and undrained heterogeneous reservoirs. Several fields in southeastern Utah and southwestern Colorado are being evaluated as candidates for horizontal drilling and enhanced oil recovery from existing vertical wells based upon geological characterization and reservoir modeling case studies. Geological characterization on a local scale is focused on reservoir heterogeneity, quality, and lateral continuity, as well as possible reservoir compartmentalization, within these fields. This study utilizes representative cores, geophysical logs, and thin sections to characterize and grade each field's potential for drilling horizontal laterals from existing development wells. The results of these studies can be applied to similar fields elsewhere in the Paradox Basin and the Rocky Mountain region, the Michigan and Illinois Basins, and the Midcontinent region. This report covers research activities for the first half of the fourth project year (April 6 through October 5, 2003). The work included (1) analysis of well-test data and oil production from Cherokee and Bug fields, San Juan County, Utah, and (2) diagenetic evaluation of stable isotopes from the upper Ismay and lower Desert Creek zones of the Paradox Formation in the Blanding sub-basin, Utah. Production ''sweet spots'' and potential horizontal drilling candidates were identified for Cherokee and Bug fields. In Cherokee field, the most productive wells are located in the thickest part of the mound facies of the upper Ismay zone, where microporosity is well developed. In Bug field, the most productive wells are located structurally downdip from the updip porosity pinch out in the dolomitized lower Desert Creek zone, where micro-box-work porosity is well developed. Microporosity and micro-box-work porosity have the greatest hydrocarbon storage and flow capacity, and potential horizontal drilling target in these fields. Diagenesis is the main control on the quality of Ismay and Desert Creek reservoirs. Most of the carbonates present within the lower Desert Creek and Ismay have retained a marine-influenced carbon isotope geochemistry throughout marine cementation as well as through post-burial recycling of marine carbonate components during dolomitization, stylolitization, dissolution, and late cementation. Meteoric waters do not appear to have had any effect on the composition of the dolomites in these zones. Light oxygen values obtained from reservoir samples for wells located along the margins or flanks of Bug field may be indicative of exposure to higher temperatures, to fluids depleted in {sup 18}O relative to sea water, or to hypersaline waters during burial diagenesis. The samples from Bug field with the lightest oxygen isotope compositions are from wells that have produced significantly greater amounts of hydrocarbons. There is no significant difference between the oxygen isotope compositions from lower Desert Creek dolomite samples in Bug field and the upper Ismay limestones and dolomites from Cherokee field. Carbon isotopic compositions for samples from Patterson Canyon field can be divided into two populations: isotopically heavier mound cement and isotopically lighter oolite and banded cement. Technology transfer activities consisted of exhibiting a booth display of project materials at the annual national convention of the American Association of Petroleum Geologists, a technical presentation, a core workshop, and publications. The project home page was updated on the Utah Geological Survey Internet web site.

Thomas C. Chidsey; Kevin McClure; Craig D. Morgan

2003-10-05T23:59:59.000Z

99

Research on Error Compensation for Oil Drilling Angle Based on ANFIS  

Science Journals Connector (OSTI)

Gyro survey technique has applied and played an important role in many areas, such as offshore oil drilling, directional drilling and so on. Considering the influence of...

Fan Li; Liyan Wang; Jianhui Zhao

2007-01-01T23:59:59.000Z

100

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

Note: This page contains sample records for the topic "drilling techniques development" 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
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101

Advanced Mud System for Microhole Coiled Tubing Drilling  

SciTech Connect

An advanced mud system was designed and key components were built that augment a coiled tubing drilling (CTD) rig that is designed specifically to drill microholes (less than 4-inch diameter) with advanced drilling techniques. The mud system was tailored to the hydraulics of the hole geometries and rig characteristics required for microholes and is capable of mixing and circulating mud and removing solids while being self contained and having zero discharge capability. Key components of this system are two modified triplex mud pumps (High Pressure Slurry Pumps) for advanced Abrasive Slurry Jetting (ASJ) and a modified Gas-Liquid-Solid (GLS) Separator for well control, flow return and initial processing. The system developed also includes an additional component of an advanced version of ASJ which allows cutting through most all materials encountered in oil and gas wells including steel, cement, and all rock types. It includes new fluids and new ASJ nozzles. The jetting mechanism does not require rotation of the bottom hole assembly or drill string, which is essential for use with Coiled Tubing (CT). It also has low reactive forces acting on the CT and generates cuttings small enough to be easily cleaned from the well bore, which is important in horizontal drilling. These cutting and mud processing components and capabilities compliment the concepts put forth by DOE for microhole coiled tubing drilling (MHTCTD) and should help insure the reality of drilling small diameter holes quickly and inexpensively with a minimal environmental footprint and that is efficient, compact and portable. Other components (site liners, sump and transfer pumps, stacked shakers, filter membranes, etc.. ) of the overall mud system were identified as readily available in industry and will not be purchased until we are ready to drill a specific well.

Kenneth Oglesby

2008-12-01T23:59:59.000Z

102

Optimizing drilling performance using a selected drilling fluid  

DOE Patents (OSTI)

To improve drilling performance, a drilling fluid is selected based on one or more criteria and to have at least one target characteristic. Drilling equipment is used to drill a wellbore, and the selected drilling fluid is provided into the wellbore during drilling with the drilling equipment. The at least one target characteristic of the drilling fluid includes an ability of the drilling fluid to penetrate into formation cuttings during drilling to weaken the formation cuttings.

Judzis, Arnis (Salt Lake City, UT); Black, Alan D. (Coral Springs, FL); Green, Sidney J. (Salt Lake City, UT); Robertson, Homer A. (West Jordan, UT); Bland, Ronald G. (Houston, TX); Curry, David Alexander (The Woodlands, TX); Ledgerwood, III, Leroy W. (Cypress, TX)

2011-04-19T23:59:59.000Z

103

HIGH-POWER TURBODRILL AND DRILL BIT FOR DRILLING WITH COILED TUBING  

SciTech Connect

Commercial introduction of Microhole Technology to the gas and oil drilling industry requires an effective downhole drive mechanism which operates efficiently at relatively high RPM and low bit weight for delivering efficient power to the special high RPM drill bit for ensuring both high penetration rate and long bit life. This project entails developing and testing a more efficient 2-7/8 in. diameter Turbodrill and a novel 4-1/8 in. diameter drill bit for drilling with coiled tubing. The high-power Turbodrill were developed to deliver efficient power, and the more durable drill bit employed high-temperature cutters that can more effectively drill hard and abrasive rock. This project teams Schlumberger Smith Neyrfor and Smith Bits, and NASA AMES Research Center with Technology International, Inc (TII), to deliver a downhole, hydraulically-driven power unit, matched with a custom drill bit designed to drill 4-1/8 in. boreholes with a purpose-built coiled tubing rig. The U.S. Department of Energy National Energy Technology Laboratory has funded Technology International Inc. Houston, Texas to develop a higher power Turbodrill and drill bit for use in drilling with a coiled tubing unit. This project entails developing and testing an effective downhole drive mechanism and a novel drill bit for drilling 'microholes' with coiled tubing. The new higher power Turbodrill is shorter, delivers power more efficiently, operates at relatively high revolutions per minute, and requires low weight on bit. The more durable thermally stable diamond drill bit employs high-temperature TSP (thermally stable) diamond cutters that can more effectively drill hard and abrasive rock. Expectations are that widespread adoption of microhole technology could spawn a wave of 'infill development' drilling of wells spaced between existing wells, which could tap potentially billions of barrels of bypassed oil at shallow depths in mature producing areas. At the same time, microhole coiled tube drilling offers the opportunity to dramatically cut producers' exploration risk to a level comparable to that of drilling development wells. Together, such efforts hold great promise for economically recovering a sizeable portion of the estimated remaining shallow (less than 5,000 feet subsurface) oil resource in the United States. The DOE estimates this U.S. targeted shallow resource at 218 billion barrels. Furthermore, the smaller 'footprint' of the lightweight rigs utilized for microhole drilling and the accompanying reduced drilling waste disposal volumes offer the bonus of added environmental benefits. DOE analysis shows that microhole technology has the potential to cut exploratory drilling costs by at least a third and to slash development drilling costs in half.

Robert Radtke; David Glowka; Man Mohan Rai; David Conroy; Tim Beaton; Rocky Seale; Joseph Hanna; Smith Neyrfor; Homer Robertson

2008-03-31T23:59:59.000Z

104

petroleum-cut (drilling) mud  

Science Journals Connector (OSTI)

petroleum-cut (drilling) mud, oil cut (drilling) mud [Drilling mud unintentionally admixed with crude oil, may result from oil entering the mud while drilling or from a drill-stem test of an oil rese...

2014-08-01T23:59:59.000Z

105

1982 geothermal well drilling summary  

SciTech Connect

This summary lists all geothermal wells spudded in 1982, which were drilled to a depth of at least 2,000 feet. Tables 1 and 2 list the drilling information by area, operator, and well type. For a tabulation of all 1982 geothermal drilling activity, including holes less than 2,000 feet deep, readers are referred to the February 11, 1983, issue of Petroleum Information's ''National Geothermal Service.'' The number of geothermal wells drilled in 1982 to 2,000 feet or more decreased to 76 wells from 99 ''deep'' wells in 1981. Accordingly, the total 1982 footage drilled was 559,110 feet of hole, as compared to 676,127 feet in 1981. Most of the ''deep'' wells (49) completed were drilled for development purposes, mainly in The Geysers area of California. Ten field extension wells were drilled, of which nine were successful. Only six wildcat wells were drilled compared to 13 in 1980 and 20 in 1981, showing a slackening of exploration compared to earlier years. Geothermal drilling activity specifically for direct use projects also decreased from 1981 to 1982, probably because of the drastic reduction in government funding and the decrease in the price of oil. Geothermal power generation in 1982 was highlighted by (a) an increase of 110 Mw geothermal power produced at The Geysers (to a total of 1,019 Mw) by addition of Unit 17, and (b) by the start-up of the Salton Sea 10 Mw single flash power plant in the Imperial Valley, which brought the total geothermal electricity generation in this area to 31 Mw.

Parmentier, P.P.

1983-08-01T23:59:59.000Z

106

Geothermal drilling technology update  

SciTech Connect

Sandia National Laboratories conducts a comprehensive geothermal drilling research program for the US Department of Energy, Office of Geothermal Technologies. The program currently includes seven areas: lost circulation technology, hard-rock drill bit technology, high-temperature instrumentation, wireless data telemetry, slimhole drilling technology, Geothermal Drilling Organization (GDO) projects, and drilling systems studies. This paper describes the current status of the projects under way in each of these program areas.

Glowka, D.A.

1997-04-01T23:59:59.000Z

107

Innovative technology summary report: Cryogenic drilling  

SciTech Connect

Environmental drilling is used to conduct site investigations and to install monitoring and remediation wells. Employing conventional drilling techniques to conduct environmental investigations in unconsolidated soils can result in borehole collapse and may also lead to cross-contamination of aquifers and soil formations. For investigations in certain geologic conditions, there are currently no viable conventional drilling techniques available. Cryogenic drilling improves upon conventional air rotary drilling by replacing ambient air with cold nitrogen (either liquid or gas) as the circulating medium. The cold nitrogen gas stream freezes moisture in the ground surrounding the hole. The frozen zone prevents the collapse of the hole and prevents the movement of groundwater or contaminants through and along the hole. The technology, its performance, uses, cost, and regulatory issues are discussed.

NONE

1998-10-01T23:59:59.000Z

108

Status Report A Review of Slimhole Drilling  

SciTech Connect

This 1994 report reviews the various applications of slimhole technology including for exploration in remote areas, low-cost development wells, reentering existing wells, and horizontal and multilateral drilling. Advantages of slimholes to regular holes are presented. Limitations and disadvantages of slimholes are also discussed. In 1994, slimhole drilling was still an ongoing development technology. (DJE 2005)

Zhu, Tao; Carroll, Herbert B.

1994-09-01T23:59:59.000Z

109

Development of the Passive Cooling Technique in China  

E-Print Network (OSTI)

With more and more energy and environmental issues, the energy-saving and sustainable development of buildings is of utmost concern to the building industry. Passive cooling techniques can optimally utilize natural resources in order to reduce...

Zhou, J.; Wu, J.; Zhang, G.; Xu, Y.

2006-01-01T23:59:59.000Z

110

Handbook of Best Practices for Geothermal Drilling  

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

This handbook focuses on the complex process of drilling a geothermal well, including techniques and hardware that have proven successful for both direct use and electricity generation around the world.

111

Microhole High-Pressure Jet Drill for Coiled Tubing  

SciTech Connect

Tempress Small Mechanically-Assisted High-Pressure Waterjet Drilling Tool project centered on the development of a downhole intensifier (DHI) to boost the hydraulic pressure available from conventional coiled tubing to the level required for high-pressure jet erosion of rock. We reviewed two techniques for implementing this technology (1) pure high-pressure jet drilling and (2) mechanically-assisted jet drilling. Due to the difficulties associated with modifying a downhole motor for mechanically-assisted jet drilling, it was determined that the pure high-pressure jet drilling tool was the best candidate for development and commercialization. It was also determined that this tool needs to run on commingled nitrogen and water to provide adequate downhole differential pressure and to facilitate controlled pressure drilling and descaling applications in low pressure wells. The resulting Microhole jet drilling bottomhole assembly (BHA) drills a 3.625-inch diameter hole with 2-inch coil tubing. The BHA consists of a self-rotating multi-nozzle drilling head, a high-pressure rotary seal/bearing section, an intensifier and a gas separator. Commingled nitrogen and water are separated into two streams in the gas separator. The water stream is pressurized to 3 times the inlet pressure by the downhole intensifier and discharged through nozzles in the drilling head. The energy in the gas-rich stream is used to power the intensifier. Gas-rich exhaust from the intensifier is conducted to the nozzle head where it is used to shroud the jets, increasing their effective range. The prototype BHA was tested at operational pressures and flows in a test chamber and on the end of conventional coiled tubing in a test well. During instrumented runs at downhole conditions, the BHA developed downhole differential pressures of 74 MPa (11,000 psi, median) and 90 MPa (13,000 psi, peaks). The median output differential pressure was nearly 3 times the input differential pressure available from the coiled tubing. In a chamber test, the BHA delivered up to 50 kW (67 hhp) hydraulic power. The tool drilled uncertified class-G cement samples cast into casing at a rate of 0.04 to 0.17 m/min (8 to 33 ft/hr), within the range projected for this tool but slower than a conventional PDM. While the tool met most of the performance goals, reliability requires further improvement. It will be difficult for this tool, as currently configured, to compete with conventional positive displacement downhole motors for most coil tubing drill applications. Mechanical cutters on the rotating nozzle head would improve cutting. This tool can be easily adapted for well descaling operations. A variant of the Microhole jet drilling gas separator was further developed for use with positive displacement downhole motors (PDM) operating on commingled nitrogen and water. A fit-for-purpose motor gas separator was designed and yard tested within the Microhole program. Four commercial units of that design are currently involved in a 10-well field demonstration with Baker Oil Tools in Wyoming. Initial results indicate that the motor gas separators provide significant benefit.

Ken Theimer; Jack Kolle

2007-06-30T23:59:59.000Z

112

Advanced Drilling Systems for EGS  

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

Project objectives: Apply Novateks Stinger and JackBit technology in the development of an innovative; durable fixed bladed bit and improved roller cone bit that will increase ROP by three times in drilling hard rock formations normally encountered in developing EGS resources.

113

Core Drilling Demonstration  

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

Tank Farms workers demonstrate core drilling capabilities for Hanford single-shell tanks. Core drilling is used to determine the current condition of each tank to assist in the overall assessment...

114

Well drilling apparatus  

SciTech Connect

A drill rig for drilling wells having a derrick adapted to hold and lower a conductor string and drill pipe string. A support frame is fixed to the derrick to extend over the well to be drilled, and a rotary table, for holding and rotating drill pipe strings, is movably mounted thereon. The table is displaceable between an active position in alignment with the axis of the well and an inactive position laterally spaced therefrom. A drill pipe holder is movably mounted on the frame below the rotary table for displacement between a first position laterally of the axis of the well and a second position in alignment with the axis of the well. The rotary table and said drill pipe holder are displaced in opposition to each other, so that the rotary table may be removed from alignment with the axis of the well and said drill pipe string simultaneously held without removal from said well.

Prins, K.; Prins, R.K.

1982-09-28T23:59:59.000Z

115

Foam drilling simulator  

E-Print Network (OSTI)

Although the use of compressible drilling fluids is experiencing growth, the flow behavior and stability properties of drilling foams are more complicated than those of conventional fluids. In contrast with conventional mud, the physical properties...

Paknejad, Amir Saman

2007-04-25T23:59:59.000Z

116

Potential use of hollow spheres in dual gradient drilling  

E-Print Network (OSTI)

The increasing number of significant deepwater discoveries has pushed the operator and service oil companies to focus their efforts on developing new technologies to drill in deeper water. Dual gradient drilling (DGD) will allow reaching deeper...

Vera Vera, Liliana

2012-06-07T23:59:59.000Z

117

DRILLING MACHINES GENERAL INFORMATION  

E-Print Network (OSTI)

or quill assembly. The head of the drill press is composed of the sleeve, spindle, electric motor, and feed

Gellman, Andrew J.

118

Laser Drilling - Drilling with the Power of Light  

SciTech Connect

Gas Technology Institute (GTI) has been the leading investigator in the field of high power laser applications research for well construction and completion applications. Since 1997, GTI (then as Gas Research Institute- GRI) has investigated several military and industrial laser systems and their ability to cut and drill into reservoir type rocks. In this report, GTI continues its investigation with a 5.34 kW ytterbium-doped multi-clad high power fiber laser (HPFL). When compared to its competitors; the HPFL represents a technology that is more cost effective to operate, capable of remote operations, and requires considerably less maintenance and repair. Work performed under this contract included design and implementation of laboratory experiments to investigate the effects of high power laser energy on a variety of rock types. All previous laser/rock interaction tests were performed on samples in the lab at atmospheric pressure. To determine the effect of downhole pressure conditions, a sophisticated tri-axial cell was designed and tested. For the first time, Berea sandstone, limestone and clad core samples were lased under various combinations of confining, axial and pore pressures. Composite core samples consisted of steel cemented to rock in an effort to represent material penetrated in a cased hole. The results of this experiment will assist in the development of a downhole laser perforation or side tracking prototype tool. To determine how this promising laser would perform under high pressure in-situ conditions, GTI performed a number of experiments with results directly comparable to previous data. Experiments were designed to investigate the effect of laser input parameters on representative reservoir rock types of sandstone and limestone. The focus of the experiments was on laser/rock interaction under confining pressure as would be the case for all drilling and completion operations. As such, the results would be applicable to drilling, perforation, and side tracking applications. In the past, several combinations of laser and rock variables were investigated at standard conditions and reported in the literature. More recent experiments determined the technical feasibility of laser perforation on multiple samples of rock, cement and steel. The fiber laser was capable of penetrating these materials under a variety of conditions, to an appropriate depth, and with reasonable energy requirements. It was determined that fiber lasers are capable of cutting rock without causing damage to flow properties. Furthermore, the laser perforation resulted in permeability improvements on the exposed rock surface. This report has been prepared in two parts and each part may be treated as a stand-alone document. Part 1 (High Energy Laser Drilling) includes the general description of the concept and focuses on results from experiments under the ambient lab conditions. Part 2 (High Energy Laser Perforation and Completion Techniques) discusses the design and development of a customized laser pressure cell; experimental design and procedures, and the resulting data on pressure-charged samples exposed to the laser beam. An analysis provides the resulting effect of downhole pressure conditions on the laser/rock interaction process.

Iraj A. Salehi; Brian C. Gahan; Samih Batarseh

2007-02-28T23:59:59.000Z

119

Development of Improved Oil Field Waste Injection Disposal Techniques  

SciTech Connect

The goals of this project have was to: (1) assemble and analyze a comprehensive database of past waste injection operations; (2) develop improved diagnostic techniques for monitoring fracture growth and formation changes; (3) develop operating guidelines to optimize daily operations and ultimate storage capacity of the target formation; and (4) to apply these improved models and guidelines in the field.

Terralog Technologies

2002-11-25T23:59:59.000Z

120

Development of Flexural Vibration Inspection Techniques to Rapidly  

E-Print Network (OSTI)

Development of Flexural Vibration Inspection Techniques to Rapidly Assess the Structural Health conditions at supports #12;Phase II Activities !! Develop an automated testing system !! Conduct vibration testing on bridge sections during construction !! Conduct load and vibration testing of in-service spike

Minnesota, University of

Note: This page contains sample records for the topic "drilling techniques development" 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 New Method for Calculating the Equivalent Circulating Density of Drilling Fluid in Deepwater Drilling for Oil and Gas  

Science Journals Connector (OSTI)

We have developed a simple and accurate method for calculating the equivalent circulating density for drilling fluid which can be used for deepwater drilling calculations. The calculation takes into account de...

Hui Zhang; Tengfei Sun; Deli Gao

2013-11-01T23:59:59.000Z

122

Evaluation of high rotary speed drill bit performance  

E-Print Network (OSTI)

of this research was to develop a drilling model which would more accurately predict penetration rates with standard drilling parameters. An accurate model was developed using laboratory drilling performance. A secondary result of this research was a qualitative... analysis showed that the model may be used to qualita- tivelyy match drilled formations to offset well logs. The ratio of actual to predicted penetration rate was used in conjunction with the gamma ray log to correlate the location of formations. iv...

Ray, Randy Wayne

2012-06-07T23:59:59.000Z

123

Exploration and Development Techniques for Basin and Range Geothermal  

Open Energy Info (EERE)

Techniques for Basin and Range Geothermal Techniques for Basin and Range Geothermal Systems: Examples from Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Exploration and Development Techniques for Basin and Range Geothermal Systems: Examples from Dixie Valley, Nevada Abstract Abstract unavailable. Authors David D. Blackwell, Mark Leidig, Richard P. Smith, Stuart D. Johnson and Kenneth W. Wisian Conference GRC Annual Meeting; Reno, NV; 2002/09/22 Published Geothermal Resources Council, 2002 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Exploration and Development Techniques for Basin and Range Geothermal Systems: Examples from Dixie Valley, Nevada Citation David D. Blackwell,Mark Leidig,Richard P. Smith,Stuart D. Johnson,Kenneth

124

Lateral Drilling and Completion Technologies for Shallow-Shelf Carbonates of the Red River and Ratcliffe Formations, Williston Basin  

SciTech Connect

Luff Exploration Company (LEC) focused on involvement in technologies being developed utilizing horizontal drilling concepts to enhance oil- well productivity starting in 1992. Initial efforts were directed toward high-pressure lateral jetting techniques to be applied in existing vertical wells. After involvement in several failed field attempts with jetting technologies, emphasis shifted to application of emerging technologies for drilling short-radius laterals in existing wellbores and medium-radius technologies in new wells. These lateral drilling technologies were applied in the Mississippi Ratcliffe and Ordovician Red River formations at depths of 2590 to 2890 m (8500 to 9500 ft) in Richland Co., MT; Bowman Co., ND; and Harding Co., SD.

David Gibbons; Larry A. Carrell; Richard D. George

1997-07-31T23:59:59.000Z

125

RECIPIENT:Potter Drilling Inc  

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

Potter Drilling Inc Potter Drilling Inc u.s. DEPARTUEN T OF ENERG¥ EERE PROJECT MANAGEMENT CENT ER NEPA DEIERl\IINATION PROJECr TITLE: Development of a Hydrothermal Spallation Drilling System for EGS Page 1 0[2 STATE: CA Funding Opportunity Announ<:ement Number Procurement Instrument Number NEPA Control Number CID Number OE·PS36-09G099016 OE· EE0002746 ~FO . 10 - [r,,~ G02746 Based on my review of the information concerning the proposed action, as NEPA ComplianC:f Offkrr (authorized under DOE Order 451.IA), I have made the following determination: ex. EA, EIS APPENDIX AND NUMBER: Description: A9 Information gathering (including, but not limited 10, literature surveys, inventories, audits), data analysis (including computer modeling), document preparation (such as conceptual design or feasibility studies, analytical energy supply

126

Optimization of Performance Qualifiers during Oil Well Drilling  

Science Journals Connector (OSTI)

Abstract An optimization analysis of the drilling process constitutes a powerful tool for operating under desired pressure levels (inside operational window) and, simultaneously, maximizing the rate of penetration, which must be harmonized with the conflicting objective of minimizing the specific energy. The drilling efficiency is improved as the rate of penetration is increased, however, there are conflicts with performance qualifiers, such as down hole tool life, footage, vibrations control, directional effectiveness and hydraulic scenarios. Concerning hydraulic effects, the minimization of the specific energy must be constrained by annulus bottom hole pressure safe region, using the operational window, placed above porous pressure and below fracture pressure. Under a conventional oil well drilling task, the pore pressure (minimum limit) and the fracture pressure (maximum limit) define mud density range and pressure operational window. During oil well drilling, several disturbances affect bottom hole pressure; for example, as the length of the well increases, the bottom hole pressure varies for growing hydrostatic pressure levels. In addition, the pipe connection procedure, performed at equal time intervals, stopping the drill rotation and mud injection, mounting a new pipe segment, restarting the drill fluid pump and rotation, causes severe fluctuations in well fluids flow, changing well pressure. Permeability and porous reservoir pressure governs native reservoir fluid well influx, affecting flow patterns inside the well and well pressure. The objective being tracked is operating under desired pressure levels, which assures process safety, also reducing costs. In this scenario, optimization techniques are important tools for narrow operational windows, commonly observed at deepwater and pre-salt layer environments. The major objective of this paper is developing an optimization methodology for minimizing the specific energy, also assuring safe operation (inside operational window), despite the inherent process disturbances, under a scenario that maximization of ROP (rate of penetration) is a target.

Mrcia Peixoto Vega; Marcela Galdino de Freitas; Andr Leibsohn Martins

2014-01-01T23:59:59.000Z

127

MIMO Control during Oil Well Drilling  

Science Journals Connector (OSTI)

Abstract A drilling system consists of a rotating drill string, which is placed into the well. The drill fluid is pumped through the drill string and exits through the choke valve. An important scope of the drill fluid is to maintain a certain pressure gradient along the length of the well. Well construction is a complex job in which annular pressures must be kept inside the operational window (limited by fracture and pore pressure). Monitoring bottom hole pressure to avoid fluctuations out of operational window limits is an extremely important job, in order to guarantee safe conditions during drilling. Under a conventional oil well drilling task, the pore pressure (minimum limit) and the fracture pressure (maximum limit) define mud density range and pressure operational window. During oil well drilling, several disturbances affect bottom hole pressure; for example, as the length of the well increases, the bottom hole pressure varies for growing hydrostatic pressure levels. In addition, the pipe connection procedure, performed at equal time intervals, stopping the drill rotation and mud injection, mounting a new pipe segment, restarting the drill fluid pump and rotation, causes severe fluctuations in well fluids flow, changing well pressure. Permeability and porous reservoir pressure governs native reservoir fluid well influx, affecting flow patterns inside the well and well pressure. In this work, a non linear mathematical model (gas-liquid-solid), representing an oil well drilling system, was developed, based on mass and momentum balances. Besides, for implementing classic control (PI), alternative control schemes were analyzed using mud pump flow rate, choke opening index and weight on bit as manipulated variables in order to control annulus bottomhole pressure and rate of penetration. Classic controller tuning was performed for servo and regulatory control studies, under MIMO frameworks.

Mrcia Peixoto Vega; Marcela Galdino de Freitas; Andr Leibsohn Martins

2014-01-01T23:59:59.000Z

128

Horizontal well construction/completion process in a Gulf of Mexico unconsolidated sand: development of baseline correlations for improved drill-in fluid cleanup practices.  

E-Print Network (OSTI)

??This thesis examines, in detail, the procedures and practices undertaken in the drilling and completion phases of a Gulf of Mexico horizontal well in an (more)

Lacewell, Jason Lawrence

2012-01-01T23:59:59.000Z

129

Method of deep drilling  

DOE Patents (OSTI)

Deep drilling is facilitated by the following steps practiced separately or in any combination: (1) Periodically and sequentially fracturing zones adjacent the bottom of the bore hole with a thixotropic fastsetting fluid that is accepted into the fracture to overstress the zone, such fracturing and injection being periodic as a function of the progression of the drill. (2) Casing the bore hole with ductile, pre-annealed casing sections, each of which is run down through the previously set casing and swaged in situ to a diameter large enough to allow the next section to run down through it. (3) Drilling the bore hole using a drill string of a low density alloy and a high density drilling mud so that the drill string is partially floated.

Colgate, Stirling A. (4616 Ridgeway, Los Alamos, NM 87544)

1984-01-01T23:59:59.000Z

130

Development of under sodium inspection techniques for FBR  

SciTech Connect

The reactor vessel of a fast breeder reactor (FBR) is filled with opaque liquid sodium and ultrasonic inspection techniques are effective and useful for observing the in-vessel structures under sodium. Firstly, in the development of the under sodium visual inspection technique, the synthetic aperture focusing technique (SAFT) and cross-correlation processing have been applied to realize ultrasonic 3-dimensional cross-correlation image processing with high resolution. Cross-correlation processing improves the S/N ratio of the ultrasonic echoes which are deteriorated by sodium wetting, and realizes high-density integration of the matrix arrayed transducer. Matrix arrayed transducer, in which 100 piezoelectric elements are arranged as a 10 x 10 matrix array, has been manufactured for the in-water visualizing test. Secondly, in the development of the under sodium volumetric inspection technique, a prototype electric scanning UT sensor has been developed for the volumetric test of the core support structures in the reactor vessel. The UT sensor consists of 60 arrayed piezoelectric elements, non-organic materials such as ceramic backing. Ultrasonic echoes transmitted from the elements is scanned electronically and real-time B-scope images of the structures can be realized. A prototype UT sensor has been tested to evaluate the acoustic characteristics in water and confirm the heat-proof performance under high temperature silicon oil. The performance of the UT sensor satisfied the requirements.

Karasawa, H.; Suzuki, T.; Nagai, S.; Izumi, M.; Kobayashi, T. [Toshiba Corp., Yokohama (Japan); Sasaki, S.; Ota, S.; Kai, M. [Japan Atomic Power Co., Tokyo (Japan)

1996-08-01T23:59:59.000Z

131

Training and Drills  

Directives, Delegations, and Requirements

The volume offers a framework for effective management of emergency response training and drills. Canceled by DOE G 151.1-3.

1997-08-21T23:59:59.000Z

132

Remote drill bit loader  

DOE Patents (OSTI)

A drill bit loader for loading a tapered shank of a drill bit into a similarly tapered recess in the end of a drill spindle. The spindle has a transverse slot at the inner end of the recess. The end of the tapered shank of the drill bit has a transverse tang adapted to engage in the slot so that the drill bit will be rotated by the spindle. The loader is in the form of a cylinder adapted to receive the drill bit with the shank projecting out of the outer end of the cylinder. Retainer pins prevent rotation of the drill bit in the cylinder. The spindle is lowered to extend the shank of the drill bit into the recess in the spindle and the spindle is rotated to align the slot in the spindle with the tang on the shank. A spring unit in the cylinder is compressed by the drill bit during its entry into the recess of the spindle and resiliently drives the tang into the slot in the spindle when the tang and slot are aligned.

Dokos, James A. (Idaho Falls, ID)

1997-01-01T23:59:59.000Z

133

Remote drill bit loader  

DOE Patents (OSTI)

A drill bit loader is described for loading a tapered shank of a drill bit into a similarly tapered recess in the end of a drill spindle. The spindle has a transverse slot at the inner end of the recess. The end of the tapered shank of the drill bit has a transverse tang adapted to engage in the slot so that the drill bit will be rotated by the spindle. The loader is in the form of a cylinder adapted to receive the drill bit with the shank projecting out of the outer end of the cylinder. Retainer pins prevent rotation of the drill bit in the cylinder. The spindle is lowered to extend the shank of the drill bit into the recess in the spindle and the spindle is rotated to align the slot in the spindle with the tang on the shank. A spring unit in the cylinder is compressed by the drill bit during its entry into the recess of the spindle and resiliently drives the tang into the slot in the spindle when the tang and slot are aligned. 5 figs.

Dokos, J.A.

1997-12-30T23:59:59.000Z

134

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

135

A new type of whole oil-based drilling fluid  

Science Journals Connector (OSTI)

Abstract To meet the demand of ultra-deep well drilling and shale gas well drilling, organic clay and a oil-based filtrate reducer were developed and a whole oil-based drilling fluid formula was optimized. The performance of organic clay, oil-based filtrate reducer and the whole oil-based drilling fluid were evaluated in laboratory, and the whole oil-based drilling fluid was applied in drilling process for further test of its performance. Long carbon chain quaternary ammonium salt was used as modifying agents when synthesizing organobentonites. Oil-based filtrate reducer was synthesized with monomers of lignite and amine class. The laboratory tests show that the organic clay can effectively increase the viscosity of oil-based drilling fluid and the oil-based filtrate reducer can reduce the fluid loss. Their performances were better than additives of the same kind at home and abroad. The organic clay and oil-based filtrate reducer had great compatibility with the other additives in oil-based drilling fluid. Based on the optimal additives addition amount tests, the whole oil-based drilling fluid formula was determined and the test results show that the performances of the whole oil-based drilling fluids with various densities were great. The laboratory tests show that the oil-based drilling fluid developed was high temperature resistant, even at 200 C, as density varies from 0.90 to 2.0 g/cm3, it still held good performance with only a little fluid loss, good inhibition, great anti-pollution, and good reservoir protection performance. Field application result shows that the performance of the oil-based drilling fluid is stable with great ability to maintain wellbore stability and lower density than the water-based drilling fluid; drilling bits can be used much longer and the average penetration rate is increased; the oil-based drilling fluid can satisfy the drilling requirements.

Jiancheng LI; Peng YANG; Jian GUAN; Yande SUN; Xubing KUANG; Shasha CHEN

2014-01-01T23:59:59.000Z

136

Hydraulic Pulse Drilling  

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

REV DATE DESCRIPTION ORIGINATOR REVIEWED DATE REV DATE DESCRIPTION ORIGINATOR REVIEWED DATE 0 4/13/2004 Final Report Author: J. Kolle Hunter/Theimer 4/13/2004 Document No.: TR- 053 HydroPulse(tm) Drilling Final Report Prepared by J.J. Kolle April 2004 U.S. Department of Energy Cooperative Development Agreement No. DE-FC26-FT34367 Tempress Technologies, Inc. 18858 - 72 ND Ave S. Kent, WA 98032 Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not

137

Deep Drilling Basic Research: Volume 5 - System Evaluations. Final Report, November 1988--August 1990  

SciTech Connect

This project is aimed at decreasing the costs and increasing the efficiency of drilling gas wells in excess of 15,000 feet. This volume presents a summary of an evaluation of various drilling techniques. Drilling solutions were compared quantitatively against typical penetration rates derived from conventional systems. A qualitative analysis measured the impact of a proposed system on the drilling industry. The evaluations determined that the best candidates f o r improving the speed and efficiency of drilling deep gas wells include: PDC/TSD bits, slim-hole drilling, roller-cone bits, downhole motors, top-driven systems, and coiled-tubing drilling.

None

1990-06-01T23:59:59.000Z

138

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

139

Counter-Rotating Tandem Motor Drilling System  

SciTech Connect

Gas Technology Institute (GTI), in partnership with Dennis Tool Company (DTC), has worked to develop an advanced drill bit system to be used with microhole drilling assemblies. One of the main objectives of this project was to utilize new and existing coiled tubing and slimhole drilling technologies to develop Microhole Technology (MHT) so as to make significant reductions in the cost of E&P down to 5000 feet in wellbores as small as 3.5 inches in diameter. This new technology was developed to work toward the DOE's goal of enabling domestic shallow oil and gas wells to be drilled inexpensively compared to wells drilled utilizing conventional drilling practices. Overall drilling costs can be lowered by drilling a well as quickly as possible. For this reason, a high drilling rate of penetration is always desired. In general, high drilling rates of penetration (ROP) can be achieved by increasing the weight on bit and increasing the rotary speed of the bit. As the weight on bit is increased, the cutting inserts penetrate deeper into the rock, resulting in a deeper depth of cut. As the depth of cut increases, the amount of torque required to turn the bit also increases. The Counter-Rotating Tandem Motor Drilling System (CRTMDS) was planned to achieve high rate of penetration (ROP) resulting in the reduction of the drilling cost. The system includes two counter-rotating cutter systems to reduce or eliminate the reactive torque the drillpipe or coiled tubing must resist. This would allow the application of maximum weight-on-bit and rotational velocities that a coiled tubing drilling unit is capable of delivering. Several variations of the CRTDMS were designed, manufactured and tested. The original tests failed leading to design modifications. Two versions of the modified system were tested and showed that the concept is both positive and practical; however, the tests showed that for the system to be robust and durable, borehole diameter should be substantially larger than that of slim holes. As a result, the research team decided to complete the project, document the tested designs and seek further support for the concept outside of the DOE.

Kent Perry

2009-04-30T23:59:59.000Z

140

Drilling optimization using drilling simulator software  

E-Print Network (OSTI)

equipment is being used on some rigs, adding more overall costs to the drilling operation. Other industries facing a similar dilemma-aerospace, airlines, utilities, and the military- have all resorted to sophisticated training and technology... and Gaebler3). Rotary Speed, RPM Weight on Bit, Klbs Rotary Speed, RPM Weight on Bit, Klbs Rotary Speed, RPM Weight on Bit, Klbs ROP,m/h 10 20 7 Fig. 3 shows the five basic processes encountered during the drilling of a well that account for more...

Salas Safe, Jose Gregorio

2004-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

Drilling continues upward momentum  

SciTech Connect

This paper discusses how the drilling recovery that began during the second half of 1989 is continuing into 1990. On top of this, the Iraqi invasion of Kuwait has caused disarray in oil markets, driving up oil prices, and disrupting access to oil supplies. Potentially, this upheaval could lead to an upward spike in worldwide drilling activity.

Moritis, G.

1990-09-24T23:59:59.000Z

142

Mobility for Offshore Drilling  

Science Journals Connector (OSTI)

Mobility for Offshore Drilling ... New type unit designed by Humble Oil to operate in Gulf of Mexico in 30 to 70 feet deep water ... HUMBLE OIL & REFINING is inviting bids on construction of a new type of mobile drilling platform to be used in offshore operations. ...

1956-03-26T23:59:59.000Z

143

International guide: blasthole drills  

SciTech Connect

This survey is a comprehensive quick reference guide for surface mine operators. It details rotary blasthole drill rigs that are available around the world. More than 60 drills, each with a pulldown of about 125 kN, are included in the survey.

Chadwick, J.R.

1982-01-01T23:59:59.000Z

144

GRR/Section 5 - Drilling Overview | Open Energy Information  

Open Energy Info (EERE)

GRR/Section 5 - Drilling Overview GRR/Section 5 - Drilling Overview < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5 - Drilling Overview 05DrillingPermittingOverview.pdf Click to View Fullscreen Contact Agencies BLM Regulations & Policies 30 USC § 1001 Triggers None specified On top of acquiring the correct drilling permits a developer needs to consider issues such as land and mineral ownership and right of way access. 05DrillingPermittingOverview.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative 5.1 - Review Potential Construction Permits In addition to drilling permits, the developer may require other

145

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

146

An analysis of the hydrologic effects of proposed test drilling in the Winema National Forest near Crater Lake, Oregon  

SciTech Connect

This paper describes the results of a preliminary study on the hydrologic regime underlying the Crater Lake Caldera, Oregon. The study was performed to provide a basis for evaluating the potential for polluting Crater Lake by drilling exploratory boreholes on the flanks of the mountain. A simple conceptual model of the hydrologic regime was developed by synthesizing the data from the region surrounding the Caldera. Based on the conceptual model, a series of numerical simulations aimed at establishing the basic groundwater flow patterns under and surrounding the lake were performed. In addition to the numerical simulations, we used simple volumetric techniques for estimating the distance that drilling mud would migrate away from the borehole if drilling proceeded without drilling fluid returns. Based on our calculations that show the regional flow of groundwater will oppose the flow of drilling mud toward the lake, and based on our volumetric estimate of drilling mud migration, our study concludes that drilling without returns will not pollute Crater Lake, nor will it affect the hydrologic regime in the immediate vicinity of the Crater Lake Caldera.

Sammel, E.A.; Benson, S.

1987-07-01T23:59:59.000Z

147

Titanium for Offshore Oil Drilling  

Science Journals Connector (OSTI)

Current and future applications for titanium and its alloys for offshore drilling have been examined. Successful applications were shown ... chlorination systems. Future applications especially for deepwater drilling

Dennis F. Hasson; C. Robert Crowe

1982-01-01T23:59:59.000Z

148

Examination of body burden and taint for Iceland scallop (chlamys islandica) and American plaice (Hippoglossoides platessoides) near the terra nova offshore oil development over ten Years of drilling on the grand Banks of Newfoundland, Canada  

Science Journals Connector (OSTI)

Abstract This paper presents results of analyses of body burdens of metals and hydrocarbons and taste tests for taint in Iceland scallop and American plaice performed as part of the Environmental Effects Monitoring (EEM) program for the Terra Nova offshore oil development (Grand Banks of Newfoundland, Canada). Scallop and plaice were collected in a Study Area located within approximately 1km of drill centres at Terra Nova and in a Reference Area located approximately 20km from the development. Samples were collected in 1997 to establish a baseline, and from 2000 to 2010, during drilling periods. Scallop adductor muscle was contaminated with >C10-C21aliphatic hydrocarbons resembling the drilling fluid in the synthetic drilling mud (SBM) used at Terra Nova in 2000, 2002 and 2004, but contamination of adductor muscle was not noted in 2006, 2008 and 2010. The maximum concentration in muscle was 28mg/kg wet weight, noted in 2002. Scallop viscera was contaminated with hydrocarbons resembling drilling fluid in \\{SBMs\\} near drill centres in all EEM years except 2010. Viscera contamination with >C10-C21 hydrocarbons gradually decreased from a maximum of 150mg/kg in 2000, to a maximum of 27mg/kg in 2008; all values were below the laboratory reporting detection limit of 15mg/kg in 2010. Therefore, evidence from both muscle and viscera indicates a decrease in tissue hydrocarbon contamination in recent years. Barium, another major constituent in drilling muds, has not been noted in scallop adductor muscles at concentrations above the reporting detection limit, but barium was detected in viscera in baseline and EEM years. The maximum concentration of barium in viscera during baseline sampling was 8mg/kg. The maximum concentration in EEM years (29mg/kg) was noted in 2000. The maximum concentration in 2010 was 25mg/kg. The concentration of metals other than barium in scallop tissues was similar between the Terra Nova Study Area and the Reference Area. Hydrocarbons resembling the fluid in SBM were noted in one American plaice liver sample collected near drill centres in 2000. Otherwise, there has been no evidence of project-related metals or hydrocarbon contamination in plaice liver or fillet samples. There has been no evidence of taint (off-taste) for scallop adductor muscle and plaice fillet tissue in baseline or EEM years. Combined with a parallel study on fish bioindicators at Terra Nova that showed that fish health at Terra Nova was similar to that at the Reference Area (Mathieu et al., 2011), these results indicate little to no detectable biological effects on Iceland scallop and American plaice as a result of Terra Nova activities.

Elisabeth M. DeBlois; Joe W. Kiceniuk; Michael D. Paine; Bruce W. Kilgour; Ellen Tracy; Roger Crowley; Urban P. Williams; G. Gregory Janes

2014-01-01T23:59:59.000Z

149

Research and Application of Auger-air Drilling and Sieve Tube Borehole Protection in Soft Outburst-prone Coal Seams  

Science Journals Connector (OSTI)

Abstract Hole accidents during drilling and borehole collapse during extracting are bottlenecks restricting gas drainage efficiency in soft outburst-prone coal seams in China. The auger-air combined drilling technique and sieve tube mounting method are an alternative solution to these technology bottlenecks. The auger-air drilling technique combines the advantages of dry style auger drilling and air drilling. Specially designed blade in drill rod can stir up large particles of coal so that large particles can be brought to ground smoothly using compressed air and is efficient to prevent borehole accidents. After drilling is completed, the sieve tube is tripped in through the inner hole of drilling pipes, and then lifting up drilling pipes, the tube sieve will provide a complete tunnel for gas extraction. Field application proves that with proper drilling parameter selection and appropriate tube install control, it is more promising to double drilling depth and raise gas drainage efficiency.

Ji Qianhui

2014-01-01T23:59:59.000Z

150

Attenuation of sound waves in drill strings  

Science Journals Connector (OSTI)

During drilling of deep wells digital data are often transmitted from sensors located near the drill bit to the surface. Development of a new communication system with increased data capacity is of paramount importance to the drilling industry. Since steel drill strings are used transmission of these data by elastic carrier waves traveling within the drill pipe is possible but the potential communication range is uncertain. The problem is complicated by the presence of heavy?threaded tool joints every 10 m which form a periodic structure and produce classical patterns of passbands and stop bands in the wave spectra. In this article field measurements of the attenuation characteristics of a drill string in the Long Valley Scientific Well in Mammoth Lakes California are presented. Wave propagation distances approach 2 km. A theoretical model is discussed which predicts the location width and attenuation of the passbands. Mode conversion between extensional and bending waves and spurious reflections due to deviations in the periodic spacings of the tool joints are believed to be the sources of this attenuation. It is estimated that attenuation levels can be dramatically reduced by rearranging the individual pipes in the drill string according to length.

Douglas S. Drumheller

1993-01-01T23:59:59.000Z

151

Drilling Waste Management Fact Sheet: Drilling Practices That Minimize  

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

Drilling Practices Drilling Practices Fact Sheet - Drilling Practices That Minimize Generation of Drilling Wastes How Are Wells Typically Drilled? The conventional process of drilling oil and gas wells uses a rotary drill bit that is lubricated by drilling fluids or muds. As the drill bit grinds downward through the rock layers, it generates large amounts of ground-up rock known as drill cuttings. This section of the Drilling Waste Management Information System website discusses several alternative drilling practices that result in a lower volume of waste being generated. Oil and gas wells are constructed with multiple layers of pipe known as casing. Traditional wells are not drilled from top to bottom at the same diameter but rather in a series of progressively smaller-diameter intervals. The top interval is drilled starting at the surface and has the largest diameter hole. Drill bits are available in many sizes to drill different diameter holes. The hole diameter can be 20" or larger for the uppermost sections of the well, followed by different combinations of progressively smaller diameters. Some of the common hole diameters are: 17.5", 14.75", 12.25", 8.5", 7.875", and 6.5".

152

Horizontal well construction/completion process in a Gulf of Mexico unconsolidated sand: development of baseline correlations for improved drill-in fluid cleanup practices  

E-Print Network (OSTI)

This thesis examines, in detail, the procedures and practices undertaken in the drilling and completion phases of a Gulf of Mexico horizontal well in an unconsolidated sand. In particular, this thesis presents a detailed case history analysis...

Lacewell, Jason Lawrence

2012-06-07T23:59:59.000Z

153

Blast furnace taphole drill  

SciTech Connect

A blast furnace taphole drill has a flaring head with cutting edges at its cutting end formed by intersecting angled faces. A central bore carries cleaning air to the cutting end. To prevent blockage of the cleaning air bore by debris and possible jamming of the drill, the head has deep radial grooves formed at the bottoms of the valley shapes between the cutting edges. The grooves extend radially from the air bore and conduct the air so that it can get behind or under jammed debris. Reduced taphole drilling times can be achieved.

Gozeling, J.A.; de Boer, S.; Spiering, A.A.

1984-06-26T23:59:59.000Z

154

Drilling and production technology symposium  

SciTech Connect

This book presents the papers given at a conference on well drilling. Topics considered at the conference included ice island drilling structures, artificial intelligence, electric motors, mud pumps, bottom hole assembly failures, oil spills, corrosion, wear characteristics of drill bits, two-phase flow in marine risers, the training of drilling personnel, and MWD systems.

Welch, R.

1986-01-01T23:59:59.000Z

155

:- : DRILLING URANIUM BILLETS ON A  

Office of Legacy Management (LM)

'Xxy";^ ...... ' '. .- -- Metals, Ceramics, and Materials. : . - ,.. ; - . _ : , , ' z . , -, .- . >. ; . .. :- : DRILLING URANIUM BILLETS ON A .-... r .. .. i ' LEBLOND-CARLSTEDT RAPID BORER 4 r . _.i'- ' ...... ' -'".. :-'' ,' :... : , '.- ' ;BY R.' J. ' ANSEN .AEC RESEARCH AND DEVELOPMENT REPORT PERSONAL PROPERTY OF J. F. Schlltz .:- DECLASSIFIED - PER AUTHORITY OF (DAlE) (NhTI L (DATE)UE) FEED MATERIALS PRODUCTION CENTER NATIONAL LFE A COMPANY OF OHIO 26 1 3967 3035406 NLCO - 886 Metals, Ceramics and Materials (TID-4500, 22nd Ed.) DRILLING URANIUM BILLETS ON A LEBLOND-CARLSTEDT RAPID BORER By R. J. Jansen* TECHNICAL DIVISION NATIONAL LEAD COMPANY OF OHIO Date of Issuance: September 13, 1963 Approved By: Approved By: Technical Director Head, Metallurgical Department *Mr. Jansen is presently

156

Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared  

Open Energy Info (EERE)

Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Spectroscopy Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Spectroscopy Abstract Infrared spectroscopy is particularly good at identifying awide variety of hydrothermally altered minerals with no samplepreparation, and is especially helpful in discrimination amongclay minerals. We have performed several promising pilot studieson geothermal drill core and cuttings that suggest the efficiencyof the technique to sample continuously and provide alterationlogs similar to geophysical logs. We have successfully identifiedlayered silicates, zeolites, opal, calcite, and iron oxides and

157

Drill pipe with helical ridge for drilling highly angulated wells  

SciTech Connect

This patent describes a method for drilling a highly angulated wellbore with a rotary rig having a drill string terminated with a bit which method employs drilling fluid. The improvement comprises: employing a length of drill pipe in the highly angulated drill string which has a helical ridge disposed thereabout, wherein the flight of the helical ridge is wound in the same direction as the rotation of the drill string such as to move drill cuttings in a direction from the bit to the surface upon rotation, and wherein the height of the helical ridge above the circumferential surface of the length of the drill pipe is 1 to 15 percent of the diameter of the drill pipe.

Finnegan, J.E.; Williams, J.G.

1991-08-27T23:59:59.000Z

158

Continental Scientific Drilling (CSD): Technology Barriers to Deep Drilling Studies in Thermal Regimes  

SciTech Connect

This report is the proceedings of a workshop. The primary thrust of these discussion was to identify the major key technology barriers to the Department of Energy (DOE) supported Thermal Regimes CSD projects and to set priorities for research and development. The major technological challenge is the high temperature to be encountered at depth. Specific problems derived from this issue were widely recognized among the participants and are reflected in this summary. A major concern for the projected Thermal Regimes CSD boreholes was the technology required for continuous coring, in contrast to that required for drilling without core or spot coring. Current commercial technology bases for these two techniques are quite different. The DOE has successfully fielded projects that used both technologies, i.e, shallow continuous coring (Inyo Domes and Valles Caldera) and deeper drilling with spot cores (Imperial Valley-SSSDP). It was concluded that future scientific objectives may still require both approaches, but continuous coring is the most likely requirement in the near term. (DJE-2005)

Kolstad, George A.; Rowley, John C.

1987-01-16T23:59:59.000Z

159

Conoco cuts North Sea drilling time by 40%  

SciTech Connect

The record-breaking Murchison platform has slashed development drilling time by an average of 20 days and in the process has attracted the interest of oil men over the world. This article details each aspect of the operation how the rig was modified for speed, mud and casing programs and how they were changed, computer-aided MWD directional program, special conductor pipe and the way straight-hole turbo drilling complemented conventional rotary drilling.

Shute, J.; Alldredge, G.

1982-07-01T23:59:59.000Z

160

rillEdge is a software system that provides real-time deci-sion support when drilling oil wells. Decisions are sup-  

E-Print Network (OSTI)

D rillEdge is a software system that provides real-time deci- sion support when drilling oil wells developed DrillEdge to reduce the cost and decrease the probability of fail- ures in oil well drilling. Currently, DrillEdge continuously mon- itors around 30 oil well drilling operations in parallel for sever

Aamodt, Agnar

Note: This page contains sample records for the topic "drilling techniques development" 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

Laser Drilling - Drilling with the Power of Light  

SciTech Connect

Gas Technology Institute (GTI) has been the leading investigator in the field of high power laser applications research for well construction and completion applications. Since 1997, GTI (then as Gas Research Institute) has investigated several military and industrial laser systems and their ability to cut and drill into reservoir type rocks. In this report, GTI continues its investigation with a recently acquired 5.34 kW ytterbium-doped multi-clad high power fiber laser (HPFL). The HPFL represents a potentially disruptive technology that, when compared to its competitors, is more cost effective to operate, capable of remote operations, and requires considerably less maintenance and repair. To determine how this promising laser would perform under high pressure in-situ conditions, GTI performed a number of experiments with results directly comparable to previous data. Experiments were designed to investigate the effect of laser input parameters on representative reservoir rock types of sandstone and limestone. The focus of the experiments was on completion and perforation applications, although the results and techniques apply to well construction and other rock cutting applications. All previous laser/rock interaction tests were performed on samples in the lab at atmospheric pressure. To determine the effect of downhole pressure conditions, a sophisticated tri-axial cell was designed and tested. For the first time, Berea sandstone, limestone and clad core samples were lased under various combinations of confining, axial and pore pressures. Composite core samples consisted of steel cemented to rock in an effort to represent material penetrated in a cased hole. The results of this experiment will assist in the development of a downhole laser perforation prototype tool. In the past, several combinations of laser and rock variables were investigated at standard conditions and reported in the literature. More recent experiments determined the technical feasibility of laser perforation on multiple samples of rock, cement and steel. The fiber laser was capable of penetrating these materials under a variety of conditions, to an appropriate depth, and with reasonable energy requirements. It was determined that fiber lasers are capable of cutting rock without causing damage to flow properties. Furthermore, the laser perforation resulted in permeability improvements on the exposed rock surface. This report discusses the design and development of a customized laser pressure cell; experimental design and procedures, and the resulting data on pressure-charged samples exposed to the laser beam. An analysis provides the resulting effect of downhole pressure conditions on the laser/rock interaction process.

Brian C. Gahan; Samih Batarseh

2005-09-28T23:59:59.000Z

162

Proper planning improves flow drilling  

SciTech Connect

Underbalanced operations reduce formation damage, especially in horizontal wells where zones are exposed to mud for longer time periods. Benefits, risks, well control concerns, equipment and issues associated with these operations are addressed in this paper. Flow drilling raises many concerns, but little has been published on horizontal well control and flow drilling operations. This article covers planning considerations for flow drilling, but does not address horizontal ''overbalanced'' drilling because considerations and equipment are the same as in vertical overbalanced drilling and many references address that subject. The difference in well control between vertical and horizontal overbalanced drilling is fluid influx behavior and how that behavior affects kill operations.

Collins, G.J. (Marathon Oil Co., Houston, TX (United States))

1994-10-01T23:59:59.000Z

163

Evaluation of an air drilling cuttings containment system  

SciTech Connect

Drilling at hazardous waste sites for environmental remediation or monitoring requires containment of all drilling fluids and cuttings to protect personnel and the environment. At many sites, air drilling techniques have advantages over other drilling methods, requiring effective filtering and containment of the return air/cuttings stream. A study of. current containment methods indicated improvements could be made in the filtering of radionuclides and volatile organic compounds, and in equipment like alarms, instrumentation or pressure safety features. Sandia National Laboratories, Dept. 61 11 Environmental Drilling Projects Group, initiated this work to address these concerns. A look at the industry showed that asbestos abatement equipment could be adapted for containment and filtration of air drilling returns. An industry manufacturer was selected to build a prototype machine. The machine was leased and put through a six-month testing and evaluation period at Sandia National Laboratories. Various materials were vacuumed and filtered with the machine during this time. In addition, it was used in an actual air drive drilling operation. Results of these tests indicate that the vacuum/filter unit will meet or exceed our drilling requirements. This vacuum/filter unit could be employed at a hazardous waste site or any site where drilling operations require cuttings and air containment.

Westmoreland, J.

1994-04-01T23:59:59.000Z

164

EIA Drilling Productivity Report  

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

Drilling Productivity Report Drilling Productivity Report For Center on Global Energy Policy, Columbia University October 29, 2013 | New York, NY By Adam Sieminski, Administrator The U.S. has experienced a rapid increase in natural gas and oil production from shale and other tight resources Adam Sieminski, EIA Drilling Productivity Report October 29, 2013 2 0 5 10 15 20 25 30 35 2000 2002 2004 2006 2008 2010 2012 Rest of US Marcellus (PA and WV) Haynesville (LA and TX) Eagle Ford (TX) Bakken (ND) Woodford (OK) Fayetteville (AR) Barnett (TX) Antrim (MI, IN, and OH) 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 2000 2002 2004 2006 2008 2010 2012 Eagle Ford (TX) Bakken (MT & ND) Granite Wash (OK & TX) Bonespring (TX Permian) Wolfcamp (TX Permian) Spraberry (TX Permian) Niobrara-Codell (CO) Woodford (OK)

165

Marcellus Shale Drilling and Hydraulic Fracturing; Technicalities and  

E-Print Network (OSTI)

Pipe · Air Rotary Drilling Rig · Hydraulic Rotary Drilling Rig ­ Barite/Bentonite infused drilling muds A "Thumper Truck" #12;Rigging Up #12;Drilling · The Drill String ­ Diesel Powered ­ Drilling Bit ­ Drilling

Jiang, Huiqiang

166

Development of advanced strain diagnostic techniques for reactor environments.  

SciTech Connect

The following research is operated as a Laboratory Directed Research and Development (LDRD) initiative at Sandia National Laboratories. The long-term goals of the program include sophisticated diagnostics of advanced fuels testing for nuclear reactors for the Department of Energy (DOE) Gen IV program, with the future capability to provide real-time measurement of strain in fuel rod cladding during operation in situ at any research or power reactor in the United States. By quantifying the stress and strain in fuel rods, it is possible to significantly improve fuel rod design, and consequently, to improve the performance and lifetime of the cladding. During the past year of this program, two sets of experiments were performed: small-scale tests to ensure reliability of the gages, and reactor pulse experiments involving the most viable samples in the Annulated Core Research Reactor (ACRR), located onsite at Sandia. Strain measurement techniques that can provide useful data in the extreme environment of a nuclear reactor core are needed to characterize nuclear fuel rods. This report documents the progression of solutions to this issue that were explored for feasibility in FY12 at Sandia National Laboratories, Albuquerque, NM.

Fleming, Darryn D.; Holschuh, Thomas Vernon,; Miller, Timothy J.; Hall, Aaron Christopher; Urrea, David Anthony,; Parma, Edward J.,

2013-02-01T23:59:59.000Z

167

Oil and gas drilling despoils Alaska environment  

Science Journals Connector (OSTI)

Oil and gas drilling despoils Alaska environment ... Oil and gas development on Alaska's North Slope is causing "alarming environmental problems," accompanied by "a disturbing record of industry compliance with environmental laws and regulations," charges a report just released jointly by Trustees for Alaska, the Natural Resources Defense Council, and the National Wildlife Federation. ... Further oil development in the Arctic should be frozen until the environment is safeguarded, NRDC says, rather than yielding to lobbying in Congress to open the Arctic National Wildlife Refuge to drilling. ...

1988-02-01T23:59:59.000Z

168

Naming chemical compounds: Calculator drill  

Science Journals Connector (OSTI)

36. Bits and pieces, 13. A calculator can be programmed to drill students on chemical compound naming rules.

David Holdsworth; Evelyn Lacanienta

1983-01-01T23:59:59.000Z

169

Proposed Drill Sites  

SciTech Connect

Proposed drill sites for intermediate depth temperature gradient holes and/or deep resource confirmation wells. Temperature gradient contours based on shallow TG program and faults interpreted from seismic reflection survey are shown, as are two faults interpreted by seismic contractor Optim but not by Oski Energy, LLC.

Lane, Michael

2013-06-28T23:59:59.000Z

170

Proposed Drill Sites  

DOE Data Explorer (OSTI)

Proposed drill sites for intermediate depth temperature gradient holes and/or deep resource confirmation wells. Temperature gradient contours based on shallow TG program and faults interpreted from seismic reflection survey are shown, as are two faults interpreted by seismic contractor Optim but not by Oski Energy, LLC.

Lane, Michael

171

Advanced Seismic While Drilling System  

SciTech Connect

A breakthrough has been discovered for controlling seismic sources to generate selectable low frequencies. Conventional seismic sources, including sparkers, rotary mechanical, hydraulic, air guns, and explosives, by their very nature produce high-frequencies. This is counter to the need for long signal transmission through rock. The patent pending SeismicPULSER{trademark} methodology has been developed for controlling otherwise high-frequency seismic sources to generate selectable low-frequency peak spectra applicable to many seismic applications. Specifically, we have demonstrated the application of a low-frequency sparker source which can be incorporated into a drill bit for Drill Bit Seismic While Drilling (SWD). To create the methodology of a controllable low-frequency sparker seismic source, it was necessary to learn how to maximize sparker efficiencies to couple to, and transmit through, rock with the study of sparker designs and mechanisms for (a) coupling the sparker-generated gas bubble expansion and contraction to the rock, (b) the effects of fluid properties and dynamics, (c) linear and non-linear acoustics, and (d) imparted force directionality. After extensive seismic modeling, the design of high-efficiency sparkers, laboratory high frequency sparker testing, and field tests were performed at the University of Texas Devine seismic test site. The conclusion of the field test was that extremely high power levels would be required to have the range required for deep, 15,000+ ft, high-temperature, high-pressure (HTHP) wells. Thereafter, more modeling and laboratory testing led to the discovery of a method to control a sparker that could generate low frequencies required for deep wells. The low frequency sparker was successfully tested at the Department of Energy Rocky Mountain Oilfield Test Center (DOE RMOTC) field test site in Casper, Wyoming. An 8-in diameter by 26-ft long SeismicPULSER{trademark} drill string tool was designed and manufactured by TII. An APS Turbine Alternator powered the SeismicPULSER{trademark} to produce two Hz frequency peak signals repeated every 20 seconds. Since the ION Geophysical, Inc. (ION) seismic survey surface recording system was designed to detect a minimum downhole signal of three Hz, successful performance was confirmed with a 5.3 Hz recording with the pumps running. The two Hz signal generated by the sparker was modulated with the 3.3 Hz signal produced by the mud pumps to create an intense 5.3 Hz peak frequency signal. The low frequency sparker source is ultimately capable of generating selectable peak frequencies of 1 to 40 Hz with high-frequency spectra content to 10 kHz. The lower frequencies and, perhaps, low-frequency sweeps, are needed to achieve sufficient range and resolution for realtime imaging in deep (15,000 ft+), high-temperature (150 C) wells for (a) geosteering, (b) accurate seismic hole depth, (c) accurate pore pressure determinations ahead of the bit, (d) near wellbore diagnostics with a downhole receiver and wired drill pipe, and (e) reservoir model verification. Furthermore, the pressure of the sparker bubble will disintegrate rock resulting in an increased overall rates of penetration. Other applications for the SeismicPULSER{trademark} technology are to deploy a low-frequency source for greater range on a wireline for Reverse Vertical Seismic Profiling (RVSP) and Cross-Well Tomography. Commercialization of the technology is being undertaken by first contacting stakeholders to define the value proposition for rig site services utilizing SeismicPULSER{trademark} technologies. Stakeholders include national oil companies, independent oil companies, independents, service companies, and commercial investors. Service companies will introduce a new Drill Bit SWD service for deep HTHP wells. Collaboration will be encouraged between stakeholders in the form of joint industry projects to develop prototype tools and initial field trials. No barriers have been identified for developing, utilizing, and exploiting the low-frequency SeismicPULSER{trademark} source in a

Robert Radtke; John Fontenot; David Glowka; Robert Stokes; Jeffery Sutherland; Ron Evans; Jim Musser

2008-06-30T23:59:59.000Z

172

invert(ed) (oil) emulsion (drilling) mud  

Science Journals Connector (OSTI)

invert(ed) (oil) emulsion (drilling) mud, water-in-oil (drilling) mud ? Wasser-in-l-(Bohr)...m, (f)

2014-08-01T23:59:59.000Z

173

water-in-oil (drilling) mud  

Science Journals Connector (OSTI)

water-in-oil (drilling) mud, invert(ed) (oil) emulsion (drilling) mud ? Wasser-in-l-(Bohr)...m, (f)

2014-08-01T23:59:59.000Z

174

Chemical logging- a geothermal technique | Open Energy Information  

Open Energy Info (EERE)

logging- a geothermal technique logging- a geothermal technique Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Chemical logging- a geothermal technique Details Activities (1) Areas (1) Regions (0) Abstract: Chemical logging studies conducted at the Department of Energy's Raft River Geothermal Test Site in south central Idaho resulted in the development of a technique to assist in geothermal well drilling and resource development. Calcium-alkalinity ratios plotted versus drill depth assisted in defining warm and hot water aquifers. Correlations between the calcium-alkalinity log and lithologic logs were used to determine aquifer types and detection of hot water zones 15 to 120 m before drill penetration. INEL-1 at the Idaho National Engineering Laboratory site in

175

Optimising the reward of appraisal drilling  

SciTech Connect

Management of the uncertainties associated with the development of a hydrocarbon resource is essential to minimize economic risk. In many instances these uncertainties can only be reduced by appraisal drilling. This presentation illustrates the efforts being made to manage uncertainty by determining its impact on overall project profitability. The Value of Information (VOI) approach is described. VOI aims at quantifying the benefits of appraisal by determining its economic reward in terms of its contribution to a development plan which is economically robust over the uncertainty range. Appraisal drilling costs can be reduced by combining appraisal and development objectives in one well. The growing use of horizontal drilling technology has resulted in novel approaches to appraisal. As examples, in the Osprey and Brent Fields (UK North Sea) wells were designed to satisfy both appraisal and development objectives. In Osprey, a well was drilled from a central production platform to provide water injection support in a satellite structure while at the same time appraising the saddle area between the two structures. In Brent, horizontal wells are used to appraise and develop the so called slump blocks, characterized by being highly faulted and compartmentalized. Another increasingly common application of horizontal wells is for the flank appraisal of hydrocarbon bearing structure. Examples from the Rabi Field (Gabon) and Batan Field (Nigeria) show how appraisal was achieved by extending the reach of horizontal development wells from the central core of the structures.

Gdula, J.

1996-12-31T23:59:59.000Z

176

Optimising the reward of appraisal drilling  

SciTech Connect

Management of the uncertainties associated with the development of a hydrocarbon resource is essential to minimize economic risk. In many instances these uncertainties can only be reduced by appraisal drilling. This presentation illustrates the efforts being made to manage uncertainty by determining its impact on overall project profitability. The Value of Information (VOI) approach is described. VOI aims at quantifying the benefits of appraisal by determining its economic reward in terms of its contribution to a development plan which is economically robust over the uncertainty range. Appraisal drilling costs can be reduced by combining appraisal and development objectives in one well. The growing use of horizontal drilling technology has resulted in novel approaches to appraisal. As examples, in the Osprey and Brent Fields (UK North Sea) wells were designed to satisfy both appraisal and development objectives. In Osprey, a well was drilled from a central production platform to provide water injection support in a satellite structure while at the same time appraising the saddle area between the two structures. In Brent, horizontal wells are used to appraise and develop the so called slump blocks, characterized by being highly faulted and compartmentalized. Another increasingly common application of horizontal wells is for the flank appraisal of hydrocarbon bearing structure. Examples from the Rabi Field (Gabon) and Batan Field (Nigeria) show how appraisal was achieved by extending the reach of horizontal development wells from the central core of the structures.

Gdula, J.

1996-01-01T23:59:59.000Z

177

Evaluation of liquid lift approach to dual gradient drilling  

E-Print Network (OSTI)

the mudline to the rig floor so as to maintain the bottom hole pressure. Several methods have been developed to achieve the dual gradient drilling principle. For this research project, we paid more attention to the liquid lift, dual gradient drilling (riser...

Okafor, Ugochukwu Nnamdi

2008-10-10T23:59:59.000Z

178

Robust techniques for developing empirical models of fluidized bed combustors  

E-Print Network (OSTI)

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

Gruhl, Jim

179

Drilling subsurface wellbores with cutting structures  

DOE Patents (OSTI)

A system for forming a wellbore includes a drill tubular. A drill bit is coupled to the drill tubular. One or more cutting structures are coupled to the drill tubular above the drill bit. The cutting structures remove at least a portion of formation that extends into the wellbore formed by the drill bit.

Mansure, Arthur James (Alburquerque, NM); Guimerans, Rosalvina Ramona (The Woodlands, TX)

2010-11-30T23:59:59.000Z

180

Calculator program optimizes bit weight, rotary speed, reducing drilling cost  

SciTech Connect

Bit selection, bit weight, and rotary speed have repeatedly proven to be the most important and commonly overlooked alterable factors which control penetration rate, footage, and overall drilling cost. This is particularly true in offshore operations where drilling costs are highest and the greatest cost savings stand to be achieved through implementation of proven optimization techniques. The myth that bit weights and rotary speeds cannot be optimized in directional holes has hindered the industry from using this virtually cost-free method for reducing drilling cost. The use of optimized bit weights and rotary speeds in conjunction with minimum cost bit programs based on cost per foot analysis of previous bit runs in the area was implemented on a five-well platform in the Grand Isle Block 20 field, offshore Louisiana. Each of the directional wells was drilled substantially faster and cheaper than the discovery well, which was a straight hole. Average reductions in footage cost of 31.3%, based on daily operating cost of $30,000/day, and increase in average daily footage drilled of 45.2% were effected by ''collectively optimizing'' drilling performance. The ''Optimizer'' program is an HP-41CV adaptation of the Bourgoyne and Young drilling model. It was used to calculate the optimum bit weights and rotary speeds based on field drilling tests; historical bit and bearing wear data; and current operating conditions, cost, and constraints.

Simpson, M.A.

1984-04-23T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

Delaware-Val Verde gas drilling busy  

SciTech Connect

Deep and not so deep exploration is under way in the southeastern Delaware and northwestern Val Verde basins in West Texas. Northern Terrell County is seeing a good agenda of Permian Wolfcamp development drilling in spite of testy gas prices. This paper reports that none of the drilling appears to be targeted to Ouachita facies along the Marathon portion of the Ouachita Overthrust, although oil production from several of those fields has been respectable. And a number of exploratory tests to 20,000 ft and deeper are under way or on tap in eastern Pecos County and Terrell County.

Petzet, G.A.

1992-01-13T23:59:59.000Z

182

Precision micro drilling with copper vapor lasers  

SciTech Connect

The authors have developed a copper vapor laser based micro machining system using advanced beam quality control and precision wavefront tilting technologies. Micro drilling has been demonstrated through percussion drilling and trepanning using this system. With a 30 W copper vapor laser running at multi-kHz pulse repetition frequency, straight parallel holes with size varying from 500 microns to less than 25 microns and with aspect ratio up to 1:40 have been consistently drilled on a variety of metals with good quality. For precision trepanned holes, the hole-to-hole size variation is typically within 1% of its diameter. Hole entrance and exit are both well defined with dimension error less than a few microns. Materialography of sectioned holes shows little (sub-micron scale) recast layer and heat affected zone with surface roughness within 1--2 microns.

Chang, J.J.; Martinez, M.W.; Warner, B.E.; Dragon, E.P.; Huete, G.; Solarski, M.E.

1994-09-02T23:59:59.000Z

183

Drop pressure optimization in oil well drilling  

Science Journals Connector (OSTI)

In this research work we are interested in minimizing losses existing when drilling an oil well. This would essentially improve the load losses by acting on the rheological parameters of the hydraulic and drilling mud. For this rheological tests were performed using a six-speed rotary viscometer (FANN 35). We used several rheological models to accurately describe the actual rheological behavior of drilling mud oil-based according to the Pearson's coefficient and to the standard deviation. To model the problem we established a system of equations that describe the essential to highlight purpose and various constraints that allow for achieving this goal. To solve the problem we developed a computer program that solves the obtained equations in Visual Basic language system. Hydraulic and rheological calculation was made for in situ application. This allowed us to estimate the distribution of losses in the well.

2014-01-01T23:59:59.000Z

184

DOE Lab Receives Award for Work on Drilling Technology | Department of  

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

DOE Lab Receives Award for Work on Drilling Technology DOE Lab Receives Award for Work on Drilling Technology DOE Lab Receives Award for Work on Drilling Technology June 13, 2013 - 11:52am Addthis DOE Lab Receives Award for Work on Drilling Technology Directional drilling - the drilling of non-vertical wells that helped make the development of shale gas possible -- will continue to play a key role in energy development, and so will the technologies that make it possible. The benefits of directional drilling are tremendous. Think cleaner, cheaper electricity; local economy booms; and decreased dependence on foreign energy. The unconventional oil and gas resources that can be tapped through directional drilling benefit consumers, businesses, and even the transportation sector. So being recognized as an innovator in this area is

185

Recurrent Oil Sheens at the Deepwater Horizon Disaster Site Fingerprinted with Synthetic Hydrocarbon Drilling Fluids  

Science Journals Connector (OSTI)

We developed and patented a method using comprehensive two-dimensional gas chromatography (GC GC) for accurate identification and quantification of drilling fluid olefins in crude oils. ... This scenario also explains the detection of drilling mud on oiled-DWH buoyancy module pieces, which would have been oiled from oil and drilling mud on the platform. ...

Christoph Aeppli; Christopher M. Reddy; Robert K. Nelson; Matthias Y. Kellermann; David L. Valentine

2013-06-25T23:59:59.000Z

186

Development of Optimization Systems Analysis Technique for Texas Water Resources  

E-Print Network (OSTI)

growth asa function of resource use is developed and an example presented using the area affected by the Blackburn Crossing Reservoir in East Central Texas....

Hann, R. W.

187

Use of Clays as Drilling Fluids and Filters  

Science Journals Connector (OSTI)

In geotechnical engineering, drilling fluid is a fluid used to drill boreholes into the earth. In drilling rigs, drilling fluids help to do drill for exploration of oil and natural gas. Liquid drilling fluid is o...

Swapna Mukherjee

2013-01-01T23:59:59.000Z

188

Slimhole Drilling, Logging, and Completion Technology - An Update  

SciTech Connect

Using slim holes (diameter < 15 cm) for geothermal exploration and small-scale power production can produce significant cost savings compared to conventional rotary-drilling methods. In addition, data obtained from slim holes can be used to lower the risks and costs associated with the drilling and completion of large-diameter geothermal wells. As a prime contractor to the U.S. Department of Energy (DOE), Sandia National Laboratories has worked with industry since 1992 to develop and promote drilling, testing, and logging technology for slim holes. This paper describes the current status of work done both in-house and contracted to industry. It focuses on drilling technology, case histories of slimhole drilling projects, data collection and rig instrumentation, and high-temperature logging tools.

FINGER,JOHN T.; JACOBSON,RONALD D.

1999-10-07T23:59:59.000Z

189

Big-hole drilling - the state of the art  

SciTech Connect

The art of big-hole drilling has been in a continual state of evolution at the Nevada Test Site since the start of underground testing in 1961. Emplacement holes for nuclear devices are still being drilled by the rotary-drilling process, but almost all the hardware and systems have undergone many changes during the intervening years. The current design of bits, cutters, and other big-hole-drilling hardware results from contributions of manufacturers and Test Site personnel. The dual-string, air-lift, reverse-circulation system was developed at the Test Site. Necessity was really the Mother of this invention, but this circulation system is worthy of consideration under almost any condition. Drill rigs for big-hole drilling are usually adaptations of large oil-well drill rigs with minor modifications required to handle the big bits and drilling assemblies. Steel remains the favorite shaft lining material, but a lot of thought is being given to concrete linings, especially precast concrete.

Lackey, M.D.

1983-01-01T23:59:59.000Z

190

Effects of Process Parameters on Ultrasonic Micro-Hole Drilling in Glass and Ruby  

SciTech Connect

Brittle materials such as ceramics, glasses and oxide single crystals find increasing applications in advanced micro-engineering products. Machining small features in such materials represents a manufacturing challenge. Ultrasonic drilling constitutes a promising technique for realizing simple micro-holes of high diameter-to-depth ratio. The process involves impacting abrasive particles in suspension in a liquid slurry between tool and work piece. Among the process performance criteria, the drilling time (productivity) is one of the most important quantities to evaluate the suitability of the process for industrial applications.This paper summarizes recent results pertaining to the ultrasonic micro-drilling process obtained with a semi-industrial 3-axis machine. The workpiece is vibrated at 40 kHz frequency with an amplitude of several micrometers. A voice-coil actuator and a control loop based on the drilling force impose the tool feed. In addition, the tool is rotated at a prescribed speed to improve the drilling speed as well as the hole geometry. Typically, a WC wire serves as tool to bore 200 {mu}m diameter micro-holes of 300 to 1,000 {mu}m depth in glass and ruby. The abrasive slurry contains B4C particles of 1 {mu}m to 5 {mu}m diameter in various concentrations.This paper discusses, on the basis of the experimental results, the influence of several parameters on the drilling time. First, the results show that the control strategy based on the drilling force allows to reach higher feed rates (avoiding tool breakage). Typically, a 8 um/s feed rate is achieved with glass and 0.9 {mu}m/s with ruby. Tool rotation, even for values as low as 50 rpm, increases productivity and improves holes geometry. Drilling with 1 {mu}m and 5 {mu}m B4C particles yields similar productivity results. Our future research will focus on using the presented results to develop a model that can serve to optimize the process for different applications.

Schorderet, Alain; Deghilage, Emmanuel; Agbeviade, Kossi [Ecole Polytechnique Federale de Lausanne (EPFL), School of Engineering (STI), Mechanical Systems Design Laboratory - LCSM, Station No. 9, CH-1015 Lausanne (Switzerland)

2011-05-04T23:59:59.000Z

191

Feature Selection for Generator Excitation Neurocontroller Development Using Filter Technique  

E-Print Network (OSTI)

Essentially, motive behind using control system is to generate suitable control signal for yielding desired response of a physical process. Control of synchronous generator has always remained very critical in power system operation and control. For certain well known reasons power generators are normally operated well below their steady state stability limit. This raises demand for efficient and fast controllers. Artificial intelligence has been reported to give revolutionary outcomes in the field of control engineering. Artificial Neural Network (ANN), a branch of artificial intelligence has been used for nonlinear and adaptive control, utilizing its inherent observability. The overall performance of neurocontroller is dependent upon input features too. Selecting optimum features to train a neurocontroller optimally is very critical. Both quality and size of data are of equal importance for better performance. In this work filter technique is employed to select independent factors for ANN training.

Abro, Abdul Ghani

2012-01-01T23:59:59.000Z

192

Drilling Systems | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Drilling Systems Jump to: navigation, search Contents 1 Geothermal Lab Call Projects for Drilling Systems 2 Geothermal ARRA Funded Projects for Drilling Systems Geothermal Lab Call Projects for Drilling Systems Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":200,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

193

Drill Program Ensures Emergency Preparedness  

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

underground event. Drill scenarios have included a full evacuation of the WIPP underground facility and responding to radiological incidents and a variety of emergencies on the...

194

Portable drilling mud system  

SciTech Connect

A portable well drilling mud storage and recirculation unit includes a mud storage tank mounted on an over-the-road semi-trailer having an engine driven circulating pump mounted onboard and adapted to withdraw mud from the tank for circulation to the well and for recirculation through a set of mud agitating nozzles disposed in the bottom of the tank. A mud degassing vessel, a solids separator unit and an additive blending unit are all mounted above the tank. The degassing vessel is supported by hydraulic cylinder actuators for movement between a retracted transport position and a vertically elevated working position.

Etter, R. W.; Briggs, J. M.

1984-10-02T23:59:59.000Z

195

Improved Efficiency of Oil Well Drilling through Case Based Reasoning  

Science Journals Connector (OSTI)

A system that applies a method of knowledge-intensive case-based reasoning, for repair and prevention of unwanted events in the domain of offshore oil well drilling, has been developed in cooperation with an oil ...

Paal Skalle; Jostein Sveen; Agnar Aamodt

2000-01-01T23:59:59.000Z

196

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.

197

Development of integral bladed rotor using linear optimisation technique  

Science Journals Connector (OSTI)

Bladed disks are the most flexible elements in high speed rotating machinery. Stress analysis of these elements present some challenges. These challenges stem from high stress gradients due to contact faces, the non-linearities attending conforming contact with friction. Thermal gradients are also encountered across the disc bore and rim due to uneven temperature distribution. The rim of the disc is made heavier to resist the centrifugal pull of the blade, thus making the assembly heavier. Investigations have been carried out to develop and improve 'blisks' which are integrated version of blades and disc, offering significant weight saving. The present paper describes the possible development process of upgrading a general purpose conventional bladed disc of a single stage compressor into blisk, using linear programme, a finite element analysis tool for linear optimisation, as a dedicated 'design-tool' keeping the same operating conditions and the allowable design limits through numerical models. Design methodology, burst-failure criteria of blisk and bladed disc are discussed in full length. This tool developed exploits the quick convergence ability of a linear system for handling large iterations and overcomes the limitation imposed by material non-linearity, over-speed and burst margin for all decision points based on stress, strain and displacement, in the design-flow process.

K. Kumar; S.L. Ajit Prasad; K. Ramachandra

2012-01-01T23:59:59.000Z

198

Oil and Gas Drilling Bit Tribology  

Science Journals Connector (OSTI)

A drilling bit is used in petroleum exploration to drill a wellbore through various layers of rock formations to access oil or natural gas resources. It is engineered...1). A roller cone drill bit is categorized ...

Dr. Chih Lin Ph.D.

2013-01-01T23:59:59.000Z

199

oil-emulsion (rotary) drilling fluid  

Science Journals Connector (OSTI)

oil-emulsion (rotary) drilling fluid, oil-emulsion fluid [Used where low fluid-loss, very thin cake, and good lubrication of the drill pipe are of primary importance, such as in directional drilling ...

2014-08-01T23:59:59.000Z

200

oil-base(d) (rotary) drilling fluid  

Science Journals Connector (OSTI)

oil-base(d) (rotary) drilling fluid, oil-base(d) fluid [Used primarily for drilling-in or recomputing wells in formations subject ... with low formation pressures. See remark under drilling fluid] ...

2014-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

Handbook of Best Practices for Geothermal Drilling | Open Energy  

Open Energy Info (EERE)

Handbook of Best Practices for Geothermal Drilling Handbook of Best Practices for Geothermal Drilling Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Handbook of Best Practices for Geothermal Drilling Abstract This Handbook is a description of the complex process that comprises drilling a geothermal well. The focus of the detailed Chapters covering various aspects of the process (casing design, cementing, logging and instrumentation, etc) is on techniques and hardware that have proven successful in geothermal reservoirs around the world. The Handbook will eventually be linked to the Geothermal Implementing Agreement (GIA) web site, with the hope and expectation that it can be continually updated as new methods are demonstrated or proven. Authors John Finger and Doug Blankenship

202

Relating horsepower to drilling productivity  

SciTech Connect

Many technological advancements have been made in explosive products and applications over the last 15 years resulting in productivity and cost gains. However, the application of total energy (engine horsepower) in the majority of rotary drilling technology, has remained virtually unchanged over that period. While advancements have been made in components, efficiency, and types of hydraulic systems used on drills, the application of current hydraulic technology to improve drilling productivity has not been interactive with end users. This paper will investigate how traditional design assumptions, regarding typical application of horsepower in current rotary drill systems, can actually limit productivity. It will be demonstrated by numeric analysis how changing the partitioning of available hydraulic energy can optimize rotary drill productivity in certain conditions. Through cooperative design ventures with drill manufacturers, increased penetration rates ranging from 20% to 100% have been achieved. Productivity was increased initially on some rigs by careful selection of optional hydraulic equipment. Additional gains were made in drilling rates by designing the rotary hydraulic circuit to meet the drilling energies predicted by computer modeling.

Givens, R.; Williams, G.; Wingfield, B.

1996-12-31T23:59:59.000Z

203

February 2002 OCEAN DRILLING PROGRAM  

E-Print Network (OSTI)

February 2002 OCEAN DRILLING PROGRAM LEG 204 SCIENTIFIC PROSPECTUS DRILLING GAS HYDRATES ON HYDRATE 1000 Discovery Drive College Station TX 77845-9547 USA -------------------------------- Dr. Carl Drive College Station TX 77845-9547 USA #12;PUBLISHER'S NOTES Material in this publication may be copied

204

OM300 Direction Drilling Module  

SciTech Connect

OM300 Geothermal Direction Drilling Navigation Tool: Design and produce a prototype directional drilling navigation tool capable of high temperature operation in geothermal drilling Accuracies of 0.1 Inclination and Tool Face, 0.5 Azimuth Environmental Ruggedness typical of existing oil/gas drilling Multiple Selectable Sensor Ranges High accuracy for navigation, low bandwidth High G-range & bandwidth for Stick-Slip and Chirp detection Selectable serial data communications Reduce cost of drilling in high temperature Geothermal reservoirs Innovative aspects of project Honeywell MEMS* Vibrating Beam Accelerometers (VBA) APS Flux-gate Magnetometers Honeywell Silicon-On-Insulator (SOI) High-temperature electronics Rugged High-temperature capable package and assembly process

MacGugan, Doug

2013-08-22T23:59:59.000Z

205

low-solids oil emulsion (drilling) mud  

Science Journals Connector (OSTI)

low-solids oil emulsion (drilling) mud, low-solids oil-in-water (drilling) mud ? l-in-Wasser-(Bohr)...m, (f) mit geringem Feststoffanteil

2014-08-01T23:59:59.000Z

206

Simulation of air and mist drilling for geothermal wells  

SciTech Connect

An improved method for calculating downhole temperatures, pressures, fluid densities and velocities during air drilling has been developed. The basic equations of fluid flow for a gas with cuttings and mist are presented along with a numerical method for their solution. Several applications of this calculational method are given, showing the effect of flow rate and standpipe pressures in typical air and mist drilling situations. 8 refs.

Mitchell, R.F.

1981-01-01T23:59:59.000Z

207

Drilling Waste Management Fact Sheet: Slurry Injection of Drilling Wastes  

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

Slurry Injection Slurry Injection Fact Sheet - Slurry Injection of Drilling Wastes Underground Injection of Drilling Wastes Several different approaches are used for injecting drilling wastes into underground formations for permanent disposal. Salt caverns are described in a separate fact sheet. This fact sheet focuses on slurry injection technology, which involves grinding or processing solids into small particles, mixing them with water or some other liquid to make a slurry, and injecting the slurry into an underground formation at pressures high enough to fracture the rock. The process referred to here as slurry injection has been given other designations by different authors, including slurry fracture injection (this descriptive term is copyrighted by a company that provides slurry injection services), fracture slurry injection, drilled cuttings injection, cuttings reinjection, and grind and inject.

208

Cost analysis of oil, gas, and geothermal well drilling  

Science Journals Connector (OSTI)

Abstract This paper evaluates current and historical drilling and completion costs of oil and gas wells and compares them with geothermal wells costs. As a starting point, we developed a new cost index for US onshore oil and gas wells based primarily on the API Joint Association Survey 19762009 data. This index describes year-to-year variations in drilling costs and allows one to express historical drilling expenditures in current year dollars. To distinguish from other cost indices we have labeled it the Cornell Energy Institute (CEI) Index. This index has nine sub-indices for different well depth intervals and has been corrected for yearly changes in drilling activity. The CEI index shows 70% higher increase in well cost between 2003 and 2008 compared to the commonly used Producer Price Index (PPI) for drilling oil and gas wells. Cost trends for various depths were found to be significantly different and explained in terms of variations of oil and gas prices, costs, and availability of major well components and services at particular locations. Multiple methods were evaluated to infer the cost-depth correlation for geothermal wells in current year dollars. In addition to analyzing reported costs of the most recently completed geothermal wells, we investigated the results of the predictive geothermal well cost model WellCost Lite. Moreover, a cost database of 146 historical geothermal wells has been assembled. The CEI index was initially used to normalize costs of these wells to current year dollars. A comparison of normalized costs of historical wells with recently drilled ones and WellCost Lite predictions shows that cost escalation rates of geothermal wells were considerably lower compared to hydrocarbon wells and that a cost index based on hydrocarbon wells is not applicable to geothermal well drilling. Besides evaluating the average well costs, this work examined economic improvements resulting from increased drilling experience. Learning curve effects related to drilling multiple similar wells within the same field were correlated.

Maciej Z. Lukawski; Brian J. Anderson; Chad Augustine; Louis E. Capuano Jr.; Koenraad F. Beckers; Bill Livesay; Jefferson W. Tester

2014-01-01T23:59:59.000Z

209

Development of X-ray lithography and nanofabrication techniques for III-V optical devices  

E-Print Network (OSTI)

This dissertation covers the development of fabrication techniques for Bragg-grating-based integrated optical devices in III-V materials. Work on this rich family of devices has largely been limited to numerical analysis ...

Lim, Michael H. (Michael Hong)

2002-01-01T23:59:59.000Z

210

Development of a bio-sensing technique for the detection of prions in foods  

E-Print Network (OSTI)

An affinity based bio-sensing technique was developed using an anti-transmissible spongiform encephalopathy monoclonal antibody as a bio-recognition molecule. Fluorescein iso-thio-cynate (FITC), labeled with a prion epitope (QYQRES), was used as a...

Anand, Ashish

2005-02-17T23:59:59.000Z

211

Development of a lidar polarimeter technique of measuring suspended solids in water  

E-Print Network (OSTI)

DEVELOPMENT OF A LIDAR POLARIMETER TECHNIQUE OF MEASURING SUSPENDED SOLIDS IN WATER A Thesis by DAVID W. PRESLEY Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE May 1980 Major Subject; Electrical Engineering DEVELOPMENT OF A LIDAR POLARIMETER TECHNIQUE OF MEASURING SUSPENDED SOLIDS IN WATER A Thesis by DAVID W, PRESLEY Approved as to sty1e and content by: Chairman of Committee H d of Department...

Presley, David W

1980-01-01T23:59:59.000Z

212

REVISED HYDROGEN SULFIDE DRILLING CONTINGENCY PLAN  

E-Print Network (OSTI)

REVISED HYDROGEN SULFIDE DRILLING CONTINGENCY PLAN OCEAN DRILLING PROGRAM TEXAS A&M UNIVERSITY;PREFACE Attached is the "REVISED HYDROGEN SULFIDE DRILLING CONTINGENCY PLAN" that will be used for ODP coring and drilling operations on legs where hydrogen sulfide is likely to be encountered. Prior

213

Smaller Footprint Drilling System for Deep and Hard Rock Environments; Feasibility of Ultra-High-Speed Diamond Drilling  

SciTech Connect

The two phase program addresses long-term developments in deep well and hard rock drilling. TerraTek believes that significant improvements in drilling deep hard rock will be obtained by applying ultra-high rotational speeds (greater than 10,000 rpm). The work includes a feasibility of concept research effort aimed at development that will ultimately result in the ability to reliably drill 'faster and deeper' possibly with smaller, more mobile rigs. The principle focus is on demonstration testing of diamond bits rotating at speeds in excess of 10,000 rpm to achieve high rate of penetration (ROP) rock cutting with substantially lower inputs of energy and loads. The significance of the 'ultra-high rotary speed drilling system' is the ability to drill into rock at very low weights on bit and possibly lower energy levels. The drilling and coring industry today does not practice this technology. The highest rotary speed systems in oil field and mining drilling and coring today run less than 10,000 rpm - usually well below 5,000 rpm. This document provides the progress through two phases of the program entitled 'Smaller Footprint Drilling System for Deep and Hard Rock Environments: Feasibility of Ultra-High-Speed Diamond Drilling' for the period starting 30 June 2003 and concluding 31 March 2009. The accomplishments of Phases 1 and 2 are summarized as follows: (1) TerraTek reviewed applicable literature and documentation and convened a project kick-off meeting with Industry Advisors in attendance (see Black and Judzis); (2) TerraTek designed and planned Phase I bench scale experiments (See Black and Judzis). Improvements were made to the loading mechanism and the rotational speed monitoring instrumentation. New drill bit designs were developed to provided a more consistent product with consistent performance. A test matrix for the final core bit testing program was completed; (3) TerraTek concluded small-scale cutting performance tests; (4) Analysis of Phase 1 data indicated that there is decreased specific energy as the rotational speed increases; (5) Technology transfer, as part of Phase 1, was accomplished with technical presentations to the industry (see Judzis, Boucher, McCammon, and Black); (6) TerraTek prepared a design concept for the high speed drilling test stand, which was planned around the proposed high speed mud motor concept. Alternative drives for the test stand were explored; a high speed hydraulic motor concept was finally used; (7) The high speed system was modified to accommodate larger drill bits than originally planned; (8) Prototype mud turbine motors and the high speed test stand were used to drive the drill bits at high speed; (9) Three different rock types were used during the testing: Sierra White granite, Crab Orchard sandstone, and Colton sandstone. The drill bits used included diamond impregnated bits, a polycrystalline diamond compact (PDC) bit, a thermally stable PDC (TSP) bit, and a hybrid TSP and natural diamond bit; and (10) The drill bits were run at rotary speeds up to 5500 rpm and weight on bit (WOB) to 8000 lbf. During Phase 2, the ROP as measured in depth of cut per bit revolution generally increased with increased WOB. The performance was mixed with increased rotary speed, with the depth cut with the impregnated drill bit generally increasing and the TSP and hybrid TSP drill bits generally decreasing. The ROP in ft/hr generally increased with all bits with increased WOB and rotary speed. The mechanical specific energy generally improved (decreased) with increased WOB and was mixed with increased rotary speed.

TerraTek, A Schlumberger Company

2008-12-31T23:59:59.000Z

214

Offshore Drilling Safety and Response Technologies | Department of Energy  

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

Offshore Drilling Safety and Response Technologies Offshore Drilling Safety and Response Technologies Offshore Drilling Safety and Response Technologies April 6, 2011 - 2:33pm Addthis Statement of Dr. Victor Der, Acting Assistant Secretary for Fossil Energy before the House Science, Space, and Technology Committee, Subcommittee on Energy and Environment. Chairman Harris, Ranking Member Miller, and members of the Subcommittee, thank you for the opportunity to appear before you today to discuss the Department of Energy's (DOE) perspective on research and development (R&D) to improve oil and gas drilling in ever-deeper waters with greater margins of safety, reduced risk of spills, and better mitigation approaches should there be a spill. As you know, the Office of Fossil Energy (FE) leads DOE's efforts to

215

Offshore Drilling Safety and Response Technologies | Department of Energy  

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

Offshore Drilling Safety and Response Technologies Offshore Drilling Safety and Response Technologies Offshore Drilling Safety and Response Technologies April 6, 2011 - 2:33pm Addthis Statement of Dr. Victor Der, Acting Assistant Secretary for Fossil Energy before the House Science, Space, and Technology Committee, Subcommittee on Energy and Environment. Chairman Harris, Ranking Member Miller, and members of the Subcommittee, thank you for the opportunity to appear before you today to discuss the Department of Energy's (DOE) perspective on research and development (R&D) to improve oil and gas drilling in ever-deeper waters with greater margins of safety, reduced risk of spills, and better mitigation approaches should there be a spill. As you know, the Office of Fossil Energy (FE) leads DOE's efforts to

216

DRILL-STRING NONLINEAR DYNAMICS ACCOUNTING FOR DRILLING FLUID T. G. Ritto  

E-Print Network (OSTI)

;1. INTRODUCTION A drill-string is a slender structure used in oil wells to penetrate the soil in search of oilDRILL-STRING NONLINEAR DYNAMICS ACCOUNTING FOR DRILLING FLUID T. G. Ritto R. Sampaio thiagoritto Descartes, 77454 Marne-la-Vallée, France Abstract. The influence of the drilling fluid (or mud) on the drill

Boyer, Edmond

217

A review of light amplification by stimulated emission of radiation in oil and gas well drilling  

Science Journals Connector (OSTI)

Abstract The prospect of employing Light Amplification by Stimulated Emission of Radiation (LASER) for well drilling in oil and gas industry was examined. In this work, the experimental works carried out on various oil well drilling operations was discussed. The results show that, LASER or LASER-aided oil and gas well drilling has many potential advantages over conventional rotary drilling, including high penetration rate, reduction or elimination of tripping, casing, bit costs, enhanced well control, as well as perforating and side-tracking capabilities. The investigation also reveals that modern infrared \\{LASERs\\} have a higher rate of rock cuttings removal than that of conventional rotary drilling and flame-jet spallation. It also reveals that LASER can destroy rock without damaging formation permeability but rather, it enhances or improves permeability and that permeability and porosity increases in all rock types. The paper has therefore provided more knowledge on the potential value to drilling operations and techniques using LASER.

M OLALEYE B

2010-01-01T23:59:59.000Z

218

Forecast of geothermal drilling activity  

SciTech Connect

The numbers of each type of geothermal well expected to be drilled in the United States for each 5-year period to 2000 AD are specified. Forecasts of the growth of geothermally supplied electric power and direct heat uses are presented. The different types of geothermal wells needed to support the forecasted capacity are quantified, including differentiation of the number of wells to be drilled at each major geothermal resource for electric power production. The rate of growth of electric capacity at geothermal resource areas is expected to be 15 to 25% per year (after an initial critical size is reached) until natural or economic limits are approached. Five resource areas in the United States should grow to significant capacity by the end of the century (The Geysers; Imperial Valley; Valles Caldera, NM; Roosevelt Hot Springs, UT; and northern Nevada). About 3800 geothermal wells are expected to be drilled in support of all electric power projects in the United States between 1981 and 2000 AD. Half of the wells are expected to be drilled in the Imperial Valley. The Geysers area is expected to retain most of the drilling activity for the next 5 years. By the 1990's, the Imperial Valley is expected to contain most of the drilling activity.

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

1981-10-01T23:59:59.000Z

219

Tool Wear in Friction Drilling  

SciTech Connect

This study investigated the wear of carbide tools used in friction drilling, a nontraditional hole-making process. In friction drilling, a rotating conical tool uses the heat generated by friction to soften and penetrate a thin workpiece and create a bushing without generating chips. The wear of a hard tungsten carbide tool used for friction drilling a low carbon steel workpiece has been investigated. Tool wear characteristics were studied by measuring its weight change, detecting changes in its shape with a coordinate measuring machine, and making observations of wear damage using scanning electron microscopy. Energy dispersive spectroscopy was applied to analyze the change in chemical composition of the tool surface due to drilling. In addition, the thrust force and torque during drilling and the hole size were measured periodically to monitor the effects of tool wear. Results indicate that the carbide tool is durable, showing minimal tool wear after drilling 11000 holes, but observations also indicate progressively severe abrasive grooving on the tool tip.

Miller, Scott F [ORNL; Blau, Peter Julian [ORNL; Shih, Albert J. [University of Michigan

2007-01-01T23:59:59.000Z

220

Vibratory Drilling of Oil Wells  

Science Journals Connector (OSTI)

Vibratory drilling refers to the process of drilling into rock by vibrating the drilling tool at audio?frequencies. The basic mechanism of vibratory drilling was ascertained by preliminary laboratory experimentation to consist of a series of impacts on the rock at the frequency of vibration. A fundamental study of this basic mechanism made by dropping weighted chisels on rock showed that the primary parameter which determined the rate of penetration was the mechanical power input to the rock per unit cross section of hole; the values of the vibration frequency and of other variables were of minor consequence over wide ranges. A theoretical analysis was made of the vibration of an elongated magnetostrictiontransducer capable of generating the required power level taking into account the distributed nature of the generation of vibrations. Intermediate power transducers have been built and tested and a high?power transducer for down?hole operation is under construction. [The material for this presentation is based on work carried out at the Battelle Memorial Institute under the sponsorship of Drilling Research Inc. an organization formed by a group of major companies engaged in various phases of oil production for the purpose of investigating novel methods of rock drilling.

Ralph Simon

1956-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

Microhole Arrays Drilled With Advanced Abrasive Slurry Jet Technology To  

Open Energy Info (EERE)

Microhole Arrays Drilled With Advanced Abrasive Slurry Jet Technology To Microhole Arrays Drilled With Advanced Abrasive Slurry Jet Technology To Efficiently Exploit Enhanced Geothermal Systems Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Microhole Arrays Drilled With Advanced Abrasive Slurry Jet Technology To Efficiently Exploit Enhanced Geothermal Systems Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Drilling Systems Project Description This project proposes to develop a cost-effective microhole drilling and completion technology with the Flash Abrasive Slurry Jet (ASJ) system and optimize it to maximize the efficiency of fluid circulation and heat removal for Enhanced Geothermal Systems (EGS). The proposed approach is expected to address the key obstacles that currently prevent EGS from becoming a technically feasible, commercially viable major contributor for electricity generation, namely: (1) reduce costs for drilling and well completion and (2) increase the volume of hot rock from which heat can be extracted.

222

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

223

Drill bit having a failure indicator  

SciTech Connect

A lubrication system is described to indicate a decrease in lubricant volume below a predetermined level in a rotary drill bit having a bit body adapted to receive drilling fluid at a high first pressure from a suspended drill string, and adapted to discharge the drilling fluid therefrom in a void space between the bit body and an associated well bore with the drilling fluid in the space being at a low second pressure.

Daly, J.E.; Pastusek, P.E.

1986-09-09T23:59:59.000Z

224

Lateral drilling and completion technologies for shallow-shelf carbonates of the Red River and Ratcliffe Formations, Williston Basin. Topical report, July 1997  

SciTech Connect

Luff Exploration Company (LEC) focused on involvement in technologies being developed utilizing horizontal drilling concepts to enhance oil-well productivity starting in 1992. Initial efforts were directed toward high-pressure lateral jetting techniques to be applied in existing vertical wells. After involvement in several failed field attempts with jetting technologies, emphasis shifted to application of emerging technologies for drilling short-radius lateral in existing wellbores and medium-radius technologies in new wells. These lateral drilling technologies were applied in the Mississippi Ratcliffe and Ordovician Red River formations at depths of 2,590 to 2,890 m in Richland County, MT; Bowman County, ND; and Harding County, SD. In theory, all of the horizontal drilling techniques explored in this project have merit for application fitting specific criteria. From a realistic point of view, the only relatively trouble-free, adequately-proven technology employed was the medium-radius steered motor/MWD technology. The slim-tool steered motor/MWD re-entry technology has been used extensively but appears to still be significantly in developmental stages. This technology will probably always be more troublesome than the technology used to drill new wells because the smaller diameter required for the tools contributes to both design and operational complexities. Although limited mechanical success has been achieved with some of the lateral jetting technologies and the Amoco tools, their predictability and reliability is unproven. Additionally, they appear to be limited to shallow depths and certain rock types. The Amoco technology probably has the most potential to be successfully developed for routinely reliable, field applications. A comparison of the various horizontal drilling technologies investigated is presented.

Carrell, L.A.; George, R.D.; Gibbons, D.

1998-07-01T23:59:59.000Z

225

Drilling deep in South Pole Ice  

E-Print Network (OSTI)

To detect the tiny flux of ultra-high energy neutrinos from active galactic nuclei or from interactions of highest energy cosmic rays with the microwave background photons needs target masses of the order of several hundred cubic kilometers. Clear Antarctic ice has been discussed as a favorable material for hybrid detection of optical, radio and acoustic signals from ultra-high energy neutrino interactions. To apply these technologies at the adequate scale hundreds of holes have to be drilled in the ice down to depths of about 2500 m to deploy the corresponding sensors. To do this on a reasonable time scale is impossible with presently available tools. Remote drilling and deployment schemes have to be developed to make such a detector design reality. After a short discussion of the status of modern hot water drilling we present here a design of an autonomous melting probe, tested 50 years ago to reach a depth of about 1000 m in Greenland ice. A scenario how to build such a probe today with modern technologies...

Karg, Timo

2014-01-01T23:59:59.000Z

226

Dechlorination of Pentachlorophenol by ammonium amended clays: development of field applicable techniques  

E-Print Network (OSTI)

P, CqP, CtP. 14 CB JECTIVE The objective of this research was to develop a field pracfical method to use ammoniated clays for dechlorination of PCP. To do this, techniques need to be developed to process the anunonium-treated clay into water stable...

Lu, Junying

1997-01-01T23:59:59.000Z

227

Developing a Reaching Behaviour in an simulated Anthropomorphic Robotic Arm Through an Evolutionary Technique  

E-Print Network (OSTI)

Developing a Reaching Behaviour in an simulated Anthropomorphic Robotic Arm Through an Evolutionary an evolutionary technique for developing a neural network based controller for an an- thropomorphic robotic arm, the robot's body and the environment. 1. Introduction The control of arm and hand movements in human and non

Cangelosi, Angelo

228

Development of a Whole-Sensitive Teleoperated Robot Arm using Torque Sensing Technique  

E-Print Network (OSTI)

Development of a Whole-Sensitive Teleoperated Robot Arm using Torque Sensing Technique Dzmitry-sensitive robot arm enabling torque measurement in each joint by means of developed optical torque sensors. When of corresponding robot arm joint. Thus, the whole structure of the manipulator can safely interact

Tachi, Susumu

229

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

230

JOIDES Resolution Drill Ship Drill into Indian Ridge MOHO Hole Cleaning Study  

E-Print Network (OSTI)

The Integrated Ocean Drilling Program (IODP) uses a variety of technology for use in its deep water scientific research, including the Joint Oceanographic Institutions for Deep Earth Sampling (JOIDES) Resolution (JR) drill ship. The JR drill ship...

Lindanger, Catharina

2014-05-03T23:59:59.000Z

231

Drill wear: its effect on the diameter of drilled holes  

E-Print Network (OSTI)

drills are made of oae of two differeat materials. The most common material in use today 1s aa 18-4-1 type of high speed steel. This steel contains about O. VS per cent carboa, 18. 00 per eeet tungstea, 4. 00 per cent chromium, and 1. 10 per eeet... vanadium. The primary advaatage of steel of this type is its ability to maintain its cutt1ng edge and haxdaess at high tempexatures. Besides beiag used for drills, this steel finds applicntioa in waay other tools such as willing cutters, taps, reamers...

Reichert, William Frederick

2012-06-07T23:59:59.000Z

232

April 25, 1997: Yucca Mountain exploratory drilling | Department...  

Office of Environmental Management (EM)

April 25, 1997: Yucca Mountain exploratory drilling April 25, 1997: Yucca Mountain exploratory drilling April 25, 1997: Yucca Mountain exploratory drilling April 25, 1997 Workers...

233

Smaller Footprint Drilling System for  

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

Oil & Natural Gas Technology Oil & Natural Gas Technology DOE Award No.: DE-FC26-03NT15401 Final Report Smaller Footprint Drilling System for Deep and Hard Rock Environments; Feasibility of Ultra-High-Speed Diamond Drilling Submitted by: TerraTek, A Schlumberger Company 1935 Fremont Drive Salt Lake City, UT 84104 Prepared for: United States Department of Energy National Energy Technology Laboratory 2 February 2010 Office of Fossil Energy Feasibility of Ultra-High Speed Diamond Drilling DE-FC26-03NT15401 ii DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or

234

Improved practices, synthetic mud drive record 24-hr drilling  

SciTech Connect

Revised and improved drilling practices resulted in increased rate of penetration (ROP), improved hole cleaning, decreased circulating time, fewer instances of stuck pipe and reduced total drilling days. Rig equipment modifications and optimized techniques, combined with olefin-based synthetic fluid, produced significant efficiency improvements and cost reductions. Total-project strategy allows best technologies to be used, even if they are not low bid. In the Gulf of Mexico, a total-project concept helped Marathon drill back-to-back record 24-hr footages. Methods and philosophy described in this article allow drillers to choose optimum technologies, tools, materials and service performance for achieving optimum or lowest cost per foot rather than always using low bid.

Collins, G.J. [Marathon Oil Co., Houston, TX (United States); White, W.W. [Marathon Oil Co., Lafayette, LA (United States)

1995-05-01T23:59:59.000Z

235

Simulation of air and mist drilling for geothermal wells  

SciTech Connect

An air drilling model has been developed that accounts for cuttings and mist. Comparison of the model results with previous work shows this model to be more conservative. The equations developed are simple enough to be used in hand calculations, but the full capability of the model is more easily obtained with a computer program. Studies with the model show that volume requirements and standpipe pressures are significantly different for mist drilling compared with air drilling. An improved method for calculating downhole temperatures, pressures, fluid densities, and velocities during air drilling has been developed. Improvements on previous methods include the following. A fully transient thermal analysis of the wellbore and formation is used to determine the flowing temperatures. The effects of flow acceleration are included explicitly in the calculation. The slip velocity between the gas and the cuttings is determined by the use of a separate momentum equation for the cuttings. The possibility of critical flow in the wellbore is tested and appropriate changes in the volume flow rate and standpipe pressure are made automatically. The standpipe and flowing pressures are predicted. The analysis is conservative. The effect of the cuttings on the wellbore flow will tend to overpredict the required volume flow rates. In this paper, the basic equations of fluid flow for a gas with cuttings and mist are presented along with a numerical method for their solution. Several applications of this calculational method are given, showing the effect of flow rate and standpipe pressure in typical air and mist drilling situations.

Mitchell, R.F.

1983-11-01T23:59:59.000Z

236

Potential impacts of artificial intelligence expert systems on geothermal well drilling costs:  

SciTech Connect

The Geothermal research Program of the US Department of Energy (DOE) has as one of its goals to reduce the cost of drilling geothermal wells by 25 percent. To attain this goal, DOE continuously evaluates new technologies to determine their potential in contributing to the Program. One such technology is artifical intelligence (AI), a branch of computer science that, in recent years, has begun to impact the marketplace in a number of fields. Expert systems techniques can (and in some cases, already have) been applied to develop computer-based ''advisors'' to assist drilling personnel in areas such as designing mud systems, casing plans, and cement programs, optimizing drill bit selection and bottom hole asssembly (BHA) design, and alleviating lost circulation, stuck pipe, fishing, and cement problems. Intelligent machines with sensor and/or robotic directly linked to AI systems, have potential applications in areas of bit control, rig hydraulics, pipe handling, and pipe inspection. Using a well costing spreadsheet, the potential savings that could be attributed to each of these systems was calculated for three base cases: a dry steam well at The Geysers, a medium-depth Imerial Valley well, and a deep Imperial Valley well. Based on the average potential savings to be realized, expert systems for handling lost circulations problems and for BHA design are the most likely to produce significant results. Automated bit control and rig hydraulics also exhibit high potential savings, but these savings are extremely sensitive to the assumptions of improved drilling efficiency and the cost of these sytems at the rig. 50 refs., 19 figs., 17 tabs.

Satrape, J.V.

1987-11-24T23:59:59.000Z

237

SMALLER FOOTPRINT DRILLING SYSTEM FOR DEEP AND HARD ROCK ENVIRONMENTS; FEASIBILITY OF ULTRA-HIGH SPEED DIAMOND DRILLING  

SciTech Connect

The two phase program addresses long-term developments in deep well and hard rock drilling. TerraTek believes that significant improvements in drilling deep hard rock will be obtained by applying ultra-high (greater than 10,000 rpm) rotational speeds. The work includes a feasibility of concept research effort aimed at development and test results that will ultimately result in the ability to reliably drill ''faster and deeper'' possibly with rigs having a smaller footprint to be more mobile. The principle focus is on demonstration testing of diamond bits rotating at speeds in excess of 10,000 rpm to achieve high rate of penetration rock cutting with substantially lower inputs of energy and loads. The project draws on TerraTek results submitted to NASA's ''Drilling on Mars'' program. The objective of that program was to demonstrate miniaturization of a robust and mobile drilling system that expends small amounts of energy. TerraTek successfully tested ultrahigh speed ({approx}40,000 rpm) small kerf diamond coring. Adaptation to the oilfield will require innovative bit designs for full hole drilling or continuous coring and the eventual development of downhole ultra-high speed drives. For domestic operations involving hard rock and deep oil and gas plays, improvements in penetration rates is an opportunity to reduce well costs and make viable certain field developments. An estimate of North American hard rock drilling costs is in excess of $1,200 MM. Thus potential savings of $200 MM to $600 MM are possible if drilling rates are doubled [assuming bit life is reasonable]. The net result for operators is improved profit margin as well as an improved position on reserves. The significance of the ''ultra-high rotary speed drilling system'' is the ability to drill into rock at very low weights on bit and possibly lower energy levels. The drilling and coring industry today does not practice this technology. The highest rotary speed systems in oil field and mining drilling and coring today run less than 10,000 rpm--usually well below 5,000 rpm. This document details the progress to date on the program entitled ''SMALLER FOOTPRINT DRILLING SYSTEM FOR DEEP AND HARD ROCK ENVIRONMENTS; FEASIBILITY OF ULTRA-HIGH SPEED DIAMOND DRILLING'' for the period starting June 23, 2003 through September 30, 2004. (1) TerraTek has reviewed applicable literature and documentation and has convened a project kick-off meeting with Industry Advisors in attendance. (2) TerraTek has designed and planned Phase I bench scale experiments. Some difficulties in obtaining ultra-high speed motors for this feasibility work were encountered though they were sourced mid 2004. (3) TerraTek is progressing through Task 3 ''Small-scale cutting performance tests''. Some improvements over early NASA experiments have been identified.

Alan Black; Arnis Judzis

2004-10-01T23:59:59.000Z

238

SMALLER FOOTPRINT DRILLING SYSTEM FOR DEEP AND HARD ROCK ENVIRONMENTS; FEASIBILITY OF ULTRA-HIGH SPEED DIAMOND DRILLING  

SciTech Connect

The two phase program addresses long-term developments in deep well and hard rock drilling. TerraTek believes that significant improvements in drilling deep hard rock will be obtained by applying ultra-high (greater than 10,000 rpm) rotational speeds. The work includes a feasibility of concept research effort aimed at development and test results that will ultimately result in the ability to reliably drill ''faster and deeper'' possibly with rigs having a smaller footprint to be more mobile. The principle focus is on demonstration testing of diamond bits rotating at speeds in excess of 10,000 rpm to achieve high rate of penetration rock cutting with substantially lower inputs of energy and loads. The project draws on TerraTek results submitted to NASA's ''Drilling on Mars'' program. The objective of that program was to demonstrate miniaturization of a robust and mobile drilling system that expends small amounts of energy. TerraTek successfully tested ultrahigh speed ({approx}40,000 rpm) small kerf diamond coring. Adaptation to the oilfield will require innovative bit designs for full hole drilling or continuous coring and the eventual development of downhole ultra-high speed drives. For domestic operations involving hard rock and deep oil and gas plays, improvements in penetration rates is an opportunity to reduce well costs and make viable certain field developments. An estimate of North American hard rock drilling costs is in excess of $1,200 MM. Thus potential savings of $200 MM to $600 MM are possible if drilling rates are doubled [assuming bit life is reasonable]. The net result for operators is improved profit margin as well as an improved position on reserves. The significance of the ''ultra-high rotary speed drilling system'' is the ability to drill into rock at very low weights on bit and possibly lower energy levels. The drilling and coring industry today does not practice this technology. The highest rotary speed systems in oil field and mining drilling and coring today run less than 10,000 rpm--usually well below 5,000 rpm. This document details the progress to date on the program entitled ''SMALLER FOOTPRINT DRILLING SYSTEM FOR DEEP AND HARD ROCK ENVIRONMENTS; FEASIBILITY OF ULTRA-HIGH SPEED DIAMOND DRILLING'' for the period starting June 23, 2003 through September 30, 2004. TerraTek has reviewed applicable literature and documentation and has convened a project kick-off meeting with Industry Advisors in attendance. TerraTek has designed and planned Phase I bench scale experiments. Some difficulties in obtaining ultra-high speed motors for this feasibility work were encountered though they were sourced mid 2004. TerraTek is progressing through Task 3 ''Small-scale cutting performance tests''. Some improvements over early NASA experiments have been identified.

Alan Black; Arnis Judzis

2004-10-01T23:59:59.000Z

239

Smaller Footprint Drilling System for Deep and Hard Rock Environments; Feasibility of Ultra-High-Speed Diamond Drilling  

SciTech Connect

The two phase program addresses long-term developments in deep well and hard rock drilling. TerraTek believes that significant improvements in drilling deep hard rock will be obtained by applying ultra-high rotational speeds (greater than 10,000 rpm). The work includes a feasibility of concept research effort aimed at development that will ultimately result in the ability to reliably drill ''faster and deeper'' possibly with smaller, more mobile rigs. The principle focus is on demonstration testing of diamond bits rotating at speeds in excess of 10,000 rpm to achieve high rate of penetration (ROP) rock cutting with substantially lower inputs of energy and loads. The significance of the ultra-high rotary speed drilling system is the ability to drill into rock at very low weights on bit and possibly lower energy levels. The drilling and coring industry today does not practice this technology. The highest rotary speed systems in oil field and mining drilling and coring today run less than 10,000 rpm--usually well below 5,000 rpm. This document details the progress to date on the program entitled ''Smaller Footprint Drilling System for Deep and Hard Rock Environments: Feasibility of Ultra-High-Speed Diamond Drilling'' for the period starting 1 October 2004 through 30 September 2005. Additionally, research activity from 1 October 2005 through 28 February 2006 is included in this report: (1) TerraTek reviewed applicable literature and documentation and convened a project kick-off meeting with Industry Advisors in attendance. (2) TerraTek designed and planned Phase I bench scale experiments. Some difficulties continue in obtaining ultra-high speed motors. Improvements have been made to the loading mechanism and the rotational speed monitoring instrumentation. New drill bit designs have been provided to vendors for production. A more consistent product is required to minimize the differences in bit performance. A test matrix for the final core bit testing program has been completed. (3) TerraTek is progressing through Task 3 ''Small-scale cutting performance tests''. (4) Significant testing has been performed on nine different rocks. (5) Bit balling has been observed on some rock and seems to be more pronounces at higher rotational speeds. (6) Preliminary analysis of data has been completed and indicates that decreased specific energy is required as the rotational speed increases (Task 4). This data analysis has been used to direct the efforts of the final testing for Phase I (Task 5). (7) Technology transfer (Task 6) has begun with technical presentations to the industry (see Judzis).

Arnis Judzis; Alan Black; Homer Robertson

2006-03-01T23:59:59.000Z

240

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

Note: This page contains sample records for the topic "drilling techniques development" 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

Nanopositioning techniques development for synchrotron radiation instrumentation applications at the Advanced Photon Source  

SciTech Connect

At modern synchrotron radiation sources and beamlines, high-precision positioning techniques present a significant opportunity to support state-of-the-art synchrotron radiation research. Meanwhile, the required instrument positioning performance and capabilities, such as resolution, dynamic range, repeatability, speed, and multiple axes synchronization are exceeding the limit of commercial availability. This paper presents the current nanopositioning techniques developed for the Argonne Center for Nanoscale Materials (CNM)/Advanced Photon Source (APS) hard x-ray nanoprobe and high-resolution x-ray monochromators and analyzers for the APS X-ray Operations and Research (XOR) beamlines. Future nanopositioning techniques to be developed for the APS renewal project will also be discussed.

Shu Deming [Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439 (United States)

2010-06-23T23:59:59.000Z

242

Acoustic data transmission through a drill string  

DOE Patents (OSTI)

Acoustical signals are transmitted through a drill string by canceling upward moving acoustical noise and by preconditioning the data in recognition of the comb filter impedance characteristics of the drill string. 5 figs.

Drumheller, D.S.

1988-04-21T23:59:59.000Z

243

Laser Oil and Gas Well Drilling Demonstration Videos  

DOE Data Explorer (OSTI)

ANL's Laser Applications Laboratory and collaborators are examining the feasibility of adapting high-power laser technology to drilling for gas and oil. The initial phase is designed to establish a scientific basis for developing a commercial laser drilling system and determine the level of gas industry interest in pursuing future research. Using lasers to bore a hole offers an entirely new approach to mechanical drilling. The novel drilling system would transfer light energy from lasers on the surface, down a borehole by a fiber optic bundle, to a series of lenses that would direct the laser light to the rock face. Researchers believe that state-of-the-art lasers have the potential to penetrate rock many times faster than conventional boring technologies - a huge benefit in reducing the high costs of operating a drill rig. Because the laser head does not contact the rock, there is no need to stop drilling to replace a mechanical bit. Moreover, researchers believe that lasers have the ability to melt the rock in a way that creates a ceramic sheath in the wellbore, eliminating the expense of buying and setting steel well casing. A laser system could also contain a variety of downhole sensors, including visual imaging systems that could communicate with the surface through the fiber optic cabling. Earlier studies have been promising, but there is still much to learn. One of the primary objectives of the new study will be to obtain much more precise measurements of the energy requirements needed to transmit light from surface lasers down a borehole with enough power to bore through rocks as much as 20,000 feet or more below the surface. Another objective will be to determine if sending the laser light in sharp pulses, rather than as a continuous stream, could further increase the rate of rock penetration. A third aspect will be to determine if lasers can be used in the presence of drilling fluids. In most wells, thick fluids called "drilling muds" are injected into the borehole to wash out rock cuttings and keep water and other fluids from the underground formations from seeping into the well. The technical challenge will be to determine whether too much laser energy is expended to clear away the fluid where the drilling is occurring. (Copied with editing from http://www.ne.anl.gov/facilities/lal/laser_drilling.html). The demonstration videos, provided here in QuickTime format, are accompanied by patent documents and PDF reports that, together, provide an overall picture of this fascinating project.

244

Steerable BHAs drill storage wells with difficult trajectories. [Bottom Hole Assembly  

SciTech Connect

The use of steerable downhole motor assemblies allows greater variation in well bore trajectory for drilling gas and oil storage wells in salt domes in areas with surface site restrictions. With modern directional drilling tools, the cavern wells are drilled vertically, kicked off in an S turn, and then finished with a vertical section. The last 100 m of a cavern well above the last cemented casing shoe must be vertical because of the technical demands of brining and completion. To date, Kavernen Bauund Betriebs-GmbH has successfully drilled and completed three directional cavern boreholes in Germany. These directional drilling techniques have also been used successfully for vertical boreholes with strict deviation limits. The paper describes this technology.

Gomm, H.; Peters, L. (Kavernen Bau- und Betriebs-GmbH, Hannover (Germany))

1993-07-19T23:59:59.000Z

245

Developing marketing strategies for a travel destination in the USA using the nominal group technique  

Science Journals Connector (OSTI)

This paper demonstrates the application of nominal grouping as a cost-effective qualitative alternative for developing marketing strategies. The nominal group technique was used to generate strategic directions for the Blue Ridge Parkway Association, a popular travel destination in the USA. Using a nominal group composed of industry experts, a SWOT analysis produced a list of strengths, weaknesses, opportunities and threats associated with the Blue Ridge Parkway. Next, potential market segments were identified and prioritised. Five marketing strategies emerged to reach the specified market segments. The study illustrates that the nominal group technique offers a cost and time-efficient qualitative alternative in making strategic decisions.

J. Dana Clark; Michael J. Dotson; Dinesh S. Dave

2010-01-01T23:59:59.000Z

246

Billiards Digest June, 2012 "VEPP Part III: Wagon Wheel Drills" ILLUSTRATED PRINCIPLES  

E-Print Network (OSTI)

Control and English." "Wagon wheel" drills are very useful to help you practice and develop cue ball (CB angle slightly for each ball. There is actually a system you can use to help decide where to placeBilliards Digest June, 2012 "VEPP ­ Part III: Wagon Wheel Drills" ILLUSTRATED PRINCIPLES David

Alciatore, David G.

247

A simulation study of a Subsea Mudlift Drilling system during tripping operations  

E-Print Network (OSTI)

To face the new challenges that the petroleum industry has in deepwaters, a Subsea Mudlift Drilling Joint Industry Project, SMDJIP, was formed. The main task for this project is to develop the technology needed to drill in water depths beyond 7500...

Escobar Parada, Alvaro Hernando

1999-01-01T23:59:59.000Z

248

Comparison of field and laboratory-simulated drill-off tests  

SciTech Connect

In this paper, field drill-off test results are compared with data from laboratory simulations. A simple theory for analyzing drill-off tests is developed. The weight-on bit (WOB) decay with time is close to exponential, but large threshold WOB's, resulting from poor weight transmission downhole, are sometimes observed in field tests.

Bourdon, J.C.; Peltier, B. (Sedco-Forex Technical Centre (USA)); Cooper, G.A. (Univ. of California, Berkley, CA (USA)); Curry, D.A. (International Drilling and Downhole Technology Centre in Aberdeen (Great Britian)); McCann, D. (Sedco-Forex Technical Centre (USA))

1989-12-01T23:59:59.000Z

249

ANL/TD/TM03-01: Lasers and Beam Delivery for Rock Drilling  

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

Development ANL/TD/TM03-01 Development ANL/TD/TM03-01 Division Technology Development Division Technology Development Division Technology Development Division Technology Development Lasers and Beam Delivery for Division Rock Drilling Technology Development Division Technology Development Division by Technology Development K.H. Leong, Z. Xu, C.B. Reed, and Division R.A. Parker Technology Development Division

250

Optical coherence tomography guided dental drill  

DOE Patents (OSTI)

A dental drill that has one or multiple single mode fibers that can be used to image in the vicinity of the drill tip. It is valuable to image below the surface being drilled to minimize damage to vital or normal tissue. Identifying the boundary between decayed and normal enamel (or dentine) would reduce the removal of viable tissue, and identifying the nerve before getting too close with the drill could prevent nerve damage. By surrounding a drill with several optical fibers that can be used by an optical coherence domain reflectometry (OCDR) to image several millimeters ahead of the ablation surface will lead to a new and improved dental treatment device.

DaSilva, Luiz B. (Danville, CA); Colston, Jr., Bill W. (Livermore, CA); James, Dale L. (Tracy, CA)

2002-01-01T23:59:59.000Z

251

Two wells drilled from one surface bore with downhole splitter  

SciTech Connect

A downhole multiwell drilling template, called a downhole splitter, allows two wells to be drilled, cased, and completed from one well bore. After completion, each well can be produced, serviced, and worked over independently of the other. The downhole splitter was successfully field tested in Wyoming. The downhole splitter is suitable for use on offshore platforms, subsea completions, offshore exploitation and delineation wells, inland waters, and onshore in environmentally sensitive areas. It is also ideal for planned multilateral or multivertical completions. The paper describes the downholds splitter and its development, then discusses the field test: casing program, directional procedure, and results.

Collins, G. (Marathon Oil Co., Houston, TX (United States)); Bennett, R. (Baker Oil Tools, Houston, TX (United States))

1994-10-03T23:59:59.000Z

252

Chemical Speciation of Chromium in Drilling Muds  

SciTech Connect

Drilling muds are made of bentonite and other clays, and/or polymers, mixed with water to the desired viscosity. Without the drilling muds, corporations could not drill for oil and gas and we would have hardly any of the fuels and lubricants considered essential for modern industrial civilization. There are hundreds of drilling muds used and some kinds of drilling muds contain chromium. The chemical states of chromium in muds have been studied carefully due to concerns about the environmental influence. However it is difficult to determine the chemical state of chromium in drilling muds directly by conventional analytical methods. We have studied the chemical form of chromium in drilling muds by using a laboratory XAFS system and a synchrotron facility.

Taguchi, Takeyoshi [X-ray Research Laboratory, RIGAKU Corporation, 3-9-12 Matsubara-cho, Akishima-shi, Tokyo 196-8666 (Japan); Yoshii, Mitsuru [Mud Technical Center, Telnite Co., Ltd., 1-2-14 Ohama, Sakata-shi, Yamagata 998-0064 (Japan); Shinoda, Kohzo [Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi, Miyagi 980-8577 (Japan)

2007-02-02T23:59:59.000Z

253

Drilling of wells with top drive unit  

SciTech Connect

Well drilling apparatus including a top drive drilling assembly having a motor driven stem adapted to be attached to the upper end of a drill string and drive it during a drilling operation, a torque wrench carried by the top drive assembly and movable upwardly and downwardly therewith and operable to break a threated connection between the drill string and the stem, and an elevator carried by and suspended from the top drive assembly and adapted to engage a section of drill pipe beneath the torque wrench in suspending relation. The torque wrench and elevator are preferably retained against rotation with the rotary element which drives the drill string, but may be movable vertically relative to that rotary element and relative to one another in a manner actuating the apparatus between various different operating conditions.

Boyadjieff, G.I.

1984-05-22T23:59:59.000Z

254

The development of in vitro culture techniques for species of the Microseridinae (Compositae, Cichorieae)  

E-Print Network (OSTI)

initiated from callus of M. laciniata and P. multicaulis. Cell suspensions plated onto agar medium formed callus. Protoplasts from M. laciniata were cultured to the small colony stage. The techniques developed in these studies could be utilized... typing on such short notice. TABLE OF CONTENTS PAGE INTRODUCTION REVIEW OF LITERATURE I. History II. The culturing of cells III. The culture of protoplasts IV. Protoplast fusion V. Embryo culture VI. Subtribe Microseridinae 4 5 8 10 11 12...

Grumbles, Robert Matheson

1977-01-01T23:59:59.000Z

255

High precision ultrasonic scanning system and SAFT-UT (synthetic aperture technique) development  

SciTech Connect

The NDT divisions at SNLA are continually striving to anticipate customer requests by adding advanced test facilities. This paper describes a new ultrasonic testing system being developed in Albuquerque to provide precise scanning of smaller test objects. There are two major subsystems that make-up the ultrasonic testing system, a high precision scanner/digitizer and a real-time processing system which automates the synthetic aperture focusing technique. These subsystems are described in the following sections.

Shurtleff, W.W.

1987-06-01T23:59:59.000Z

256

DOE Lab Receives Award for Work on Drilling Technology  

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

On May 3, 2013 the Department of Energys National Energy Technology Laboratory (NETL) received an award for its role in a joint project that helped develop what is now Schlumbergers Slider product line. The Lab was recognized for the project's contributions to directional drilling.

257

Non-Linear Seismic Soil Structure Interaction (SSI) Method for Developing Non-Linear Seismic SSI Analysis Techniques  

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

Non-Linear Seismic Soil Structure Interaction (SSI) Method for Developing Non-Linear Seismic SSI Analysis Techniques Justin Coleman, P.E. October 25th, 2011

258

A History or Geothermal Energy Research and Development in the...  

Energy Savers (EERE)

Drilling 1976-2006 A History or Geothermal Energy Research and Development in the United States: Drilling 1976-2006 This report summarizes significant research projects performed...

259

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

260

A stochastic penetration rate model for rotary drilling in surface mines  

Science Journals Connector (OSTI)

Abstract Principal Component Analysis (PCA) is used to determine the most effective parameters on the rock mass penetrability by considering their variance ratio in the first principal component. A model is developed for the prediction of rotary drills penetration rate using non-linear multiple regression analysis. Distribution functions for the effective parameters are calculated using measured data from two case studies. Applying the developed penetration rate model, a stochastic analysis is carried out using the Monte Carlo simulation. The proposed method provides a simple and effective assessment of the variability of the penetration rate model and its dependent parameters. Results showed that the PCA and Monte Carlo are suitable techniques for modeling and assessing the variability of rock mass penetrability parameters. According to the developed distribution model, with 90% of confidence level the penetration rate values range 0.22.5m/min, which shows the wide possible range of penetration rates for rotary drilling especially in sedimentary (limestone and sandstone bearing magnetite mineral of Golgohar mine) and Sarcheshmeh igneous porphyry rock masses.

Omid Saeidi; Seyed Rahman Torabi; Mohammad Ataei; Jamal Rostami

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

An advanced geothermal drilling system: Component options and limitations  

SciTech Connect

The historical developments of drilling technology for geothermal resources have followed traditional incremental trends. The local expertise and rigs were adapted from existing drill rigs used for mining, civil, and water well projects. In areas with hydrocarbon resources, petroleum drilling hardware has been adapted; and in other countries, these units were imported as depth requirements increased and more robust derricks and downhole tools were needed. This ad hoc approach has provided adequate exploration and production wells. In contrast to the incremental improvements in petroleum rotary drilling system components this paper reviews a new, purpose-developed system that would solve the known major problems by design. Performance goals of 4 km (12,000 ft.) depth, 400 C, (750 F) and penetration rates greater than 8 m/h (25 ft/h) were selected. This advanced system was reviewed extensively and estimates of perhaps 30 to 60% cost savings were projected, depending on the assumed effectiveness and performance improvements provided. This paper continues the design and feasibility study and presents some of the component and sub-system details developed thus far.

Rowley, J. [Pajarito Enterprises, Los Alamos, NM (United States); Saito, Seiji [JMC Geothermal Division, Tokyo (Japan); Long, R.C. [Department of Energy, Las Vegas, NV (United States). Yucca Mountain Site Characterization Project

1995-12-31T23:59:59.000Z

262

Design and development of the associated-particle three-dimensional imaging technique  

SciTech Connect

The authors describe the development of the ``associated-particle`` imaging technique for producing low-resolution three-dimensional images of objects. Based on the t(d,n){sup 4}He reaction, the method requires access to only one side of the object being imaged and allows for the imaging of individual chemical elements in the material under observation. Studies were performed to (1) select the appropriate components of the system, including detectors, data-acquisition electronics, and neutron source, and (2) optimize experimental methods for collection and presentation of data. This report describes some of the development steps involved and provides a description of the complete final system that was developed.

Ussery, L.E.; Hollas, C.L.

1994-10-01T23:59:59.000Z

263

Development and validation of nondestructive inspection techniques for composite doubler repairs on commercial aircraft  

SciTech Connect

Composite doublers, or repair patches, provide an innovative repair technique which can enhance the way aircraft are maintained. Instead of riveting multiple steel or aluminum plates to facilitate an aircraft repair, it is possible to bond a single boron-epoxy composite doubler to the damaged structure. In order for the use of composite doublers to achieve widespread use in the civil aviation industry, it is imperative that methods be developed which can quickly and reliably assess the integrity of the doubler. In this study, a specific composite application was chosen on an L-1011 aircraft in order to focus the tasks on application and operation issues. Primary among inspection requirements for these doublers is the identification of disbonds, between the composite laminate and aluminum parent material, and delaminations in the composite laminate. Surveillance of cracks or corrosion in the parent aluminum material beneath the doubler is also a concern. No single nondestructive inspection (NDI) method can inspect for every flaw type, therefore it is important to be aware of available NDI techniques and to properly address their capabilities and limitations. A series of NDI tests were conducted on laboratory test structures and on full-scale aircraft fuselage sections. Specific challenges, unique to bonded composite doubler applications, were highlighted. An array of conventional and advanced NDI techniques were evaluated. Flaw detection sensitivity studies were conducted on applicable eddy current, ultrasonic, X-ray and thermography based devices. The application of these NDI techniques to composite doublers and the results from test specimens, which were loaded to provide a changing flaw profile, are presented in this report. It was found that a team of these techniques can identify flaws in composite doubler installations well before they reach critical size.

Roach, D.; Walkington, P.

1998-05-01T23:59:59.000Z

264

Step-Out Drilling Results at Blue Mountain, Nevada | Open Energy  

Open Energy Info (EERE)

Step-Out Drilling Results at Blue Mountain, Nevada Step-Out Drilling Results at Blue Mountain, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Step-Out Drilling Results at Blue Mountain, Nevada Abstract Step-out drilling targets based on a detailed structural model at Blue Mt. Nevada have led to high permeability entries in a well offset 1.2 km west of the developing field at Blue Mountain,Nevada. This well, 58-15, targeted shallow and deep entries based on a model with faults in the hanging wall and in the underlying range front fault zone. Drilling results showed that both zones were permeable. The deep target showed up in several productive fractures at relatively high temperatures. This result supports the general conceptual model of upflow from depth on Piedmont faults. The purpose of

265

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

266

Study on rock-drilling using PDC bits for the prediction of torque and rate of penetration  

Science Journals Connector (OSTI)

This paper presents mathematical models for estimating torque, Rate of Penetration (ROP) as functions of cutting speed, flow rate, weight on bit and type of formation using factorial design of experiment technique for rock-drilling using Polycrystalline Diamond Compact (PDC) bits. The four factors corresponding to design parameters have been analysed simultaneously by main effects with two factor interactions. The developed model is tested for its adequacy using Analysis of Variance (ANOVA). The predicted results and trends of the factor interactions between the variables are presented, and found to be in good agreement with the results reported earlier.

R.S. Jadoun

2009-01-01T23:59:59.000Z

267

Environmental Assessment: Geothermal Energy Geopressure Subprogram. Gulf Coast Well Drilling and Testing Activity (Frio, Wilcox, and Tuscaloosa Formations, Texas and Louisiana)  

SciTech Connect

The Department of Energy (DOE) has initiated a program to evaluate the feasibility of developing the geothermal-geopressured energy resources of the Louisiana-Texas Gulf Coast. As part of this effort, DOE is contracting for the drilling of design wells to define the nature and extent of the geopressure resource. At each of several sites, one deep well (4000-6400 m) will be drilled and flow tested. One or more shallow wells will also be drilled to dispose of geopressured brines. Each site will require about 2 ha (5 acres) of land. Construction and initial flow testing will take approximately one year. If initial flow testing is successful, a continuous one-year duration flow test will take place at a rate of up to 6400 m{sup 3} (40,000 bbl) per day. Extensive tests will be conducted on the physical and chemical composition of the fluids, on their temperature and flow rate, on fluid disposal techniques, and on the reliability and performance of equipment. Each project will require a maximum of three years to complete drilling, testing, and site restoration.

None

1981-09-01T23:59:59.000Z

268

AANNUALNNUAL RREPORTEPORT Integrated Ocean Drilling ProgramIntegrated Ocean Drilling Program  

E-Print Network (OSTI)

the earlier successes of the Deep Sea Drilling Project (DSDP) and the Ocean Drilling Program (ODP), programs for either the riserless or riser vessel, such as near the shoreline in shallow-water areas

269

drilling-tools | netl.doe.gov  

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

drilling-tools Publications KMD Contacts Project Summaries EPAct 2005 Arctic Energy Office Announcements Software Stripper Wells Tally II: Pipe Tally Sheet for Pocket PC allows...

270

Category:Exploration Drilling | Open Energy Information  

Open Energy Info (EERE)

Category Edit History Facebook icon Twitter icon Category:Exploration Drilling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the...

271

High Temperature 300C Directional Drilling System  

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

Project objective: provide a directional drilling system that can be used at environmental temperatures of up to 300C; and at depths of 10; 000 meters.

272

Offshore Drilling and Production: A Short History  

Science Journals Connector (OSTI)

Drilling in Louisianas marshes and shallow waters ... or worse the expanding presence of the oil and gas industry has changed everyones...

Joseph A. Tainter; Tadeusz W. Patzek

2012-01-01T23:59:59.000Z

273

International guide: blasthole drills. [For blastholes  

SciTech Connect

This survey is a comprehensive, quick reference guide for surface mine operators. It details what rotary blasthole drill rigs are available around the world. The survey covers over 60 drills, each with a pulldown of about 125 kilonewtons (27,500 pounds). They are manufactured by companies in eight different countries. Drill rigs continue to grow in size and power as larger diameter blastholes increase drilling economy. With a range of units costing from approximately $200,000 to over $1,000,000 each, careful selection based on the requirements of specific mines is essential.

Chadwick, J.R.

1982-01-01T23:59:59.000Z

274

Analysis of drill stem test data  

E-Print Network (OSTI)

constructed to illustrate the effects of changes in Kh/p, , well bore damage, and pro duction rate on the geometry of the drill stem test pressure buildup curve. To formulate the hypothetical drill stem test, certain reser- voir rock and fluid properties... constructed to illustrate the effects of changes in Kh/p, , well bore damage, and pro duction rate on the geometry of the drill stem test pressure buildup curve. To formulate the hypothetical drill stem test, certain reser- voir rock and fluid properties...

Zak, Albin Joseph

2012-06-07T23:59:59.000Z

275

Loaded Transducer Fpr Downhole Drilling Component  

DOE Patents (OSTI)

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

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

2005-07-05T23:59:59.000Z

276

High Temperature 300C Directional Drilling System  

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

300C Directional Drilling System John Macpherson Baker Hughes Oilfield Operations DE-EE0002782 May 19, 2010 This presentation does not contain any proprietary confidential, or...

277

Behavior of oil muds during drilling operations  

SciTech Connect

This paper presents an analysis of the behavior of diesel-oil-based muds with an advanced thermal and hydraulic wellbore mathematical simulator. Recent diesel-oil-mud rheological correlations have been incorporated into the model to account for viscosity and density variations of oil mud with temperature and pressure. As rheological correlations are developed for other oil-based muds, such as mineral-oil based muds, they can also be incorporated into the model. A specific deep-well application of the model illustrates the behavior of the oil-based muds and shows the differences between water-based mud and oil-mud for local fluid densities during drilling, circulating, and static conditions. Temperature and density profiles are presented for various operating conditions to show that modeling improves the understanding of oil-mud behavior downhole.

Galate, J.W.; Mitchell, R.F.

1986-04-01T23:59:59.000Z

278

The Framing of Marcellus Shale Gas Drilling Issues in Pennsylvania Newspapers.  

E-Print Network (OSTI)

??Thousands of articles on Marcellus Shale gas drilling and development were written in Pennsylvania newspapers from 2008-2012 (NewsBank, 2013). These stories can have an influence (more)

Brown, Elise

2013-01-01T23:59:59.000Z

279

Stress intensity factors and fatigue growth of a surface crack in a drill pipe during rotary drilling operation  

E-Print Network (OSTI)

known that drill pipe fatigue in oil-gas drilling operations represents more than 30% of the drill pipeStress intensity factors and fatigue growth of a surface crack in a drill pipe during rotary drilling operation Ngoc Ha Daoa, , Hedi Sellamia aMines ParisTech, 35 rue Saint-Honoré, 77305 Fontainebleau

Paris-Sud XI, Université de

280

Coiled tubing drilling with supercritical carbon dioxide  

DOE Patents (OSTI)

A method for increasing the efficiency of drilling operations by using a drilling fluid material that exists as supercritical fluid or a dense gas at temperature and pressure conditions existing at a drill site. The material can be used to reduce mechanical drilling forces, to remove cuttings, or to jet erode a substrate. In one embodiment, carbon dioxide (CO.sub.2) is used as the material for drilling within wells in the earth, where the normal temperature and pressure conditions cause CO.sub.2 to exist as a supercritical fluid. Supercritical carbon dioxide (SC--CO.sub.2) is preferably used with coiled tube (CT) drilling equipment. The very low viscosity SC--CO.sub.2 provides efficient cooling of the drill head, and efficient cuttings removal. Further, the diffusivity of SC--CO.sub.2 within the pores of petroleum formations is significantly higher than that of water, making jet erosion using SC--CO.sub.2 much more effective than water jet erosion. SC--CO.sub.2 jets can be used to assist mechanical drilling, for erosion drilling, or for scale removal. A choke manifold at the well head or mud cap drilling equipment can be used to control the pressure within the borehole, to ensure that the temperature and pressure conditions necessary for CO.sub.2 to exist as either a supercritical fluid or a dense gas occur at the drill site. Spent CO.sub.2 can be vented to the atmosphere, collected for reuse, or directed into the formation to aid in the recovery of petroleum.

Kolle , Jack J. (Seattle, WA)

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

Tight gas sands study breaks down drilling and completion costs  

SciTech Connect

Given the high cost to drill and complete tight gas sand wells, advances in drilling and completion technology that result in even modest cost savings to the producer have the potential to generate tremendous savings for the natural gas industry. The Gas Research Institute sponsored a study to evaluate drilling and completion costs in selected tight gas sands. The objective of the study was to identify major expenditures associated with tight gas sand development and determine their relative significance. A substantial sample of well cost data was collected for the study. Individual well cost data were collected from nearly 300 wells in three major tight gas sand formations: the Cotton Valley sand in East Texas, the Frontier sand in Wyoming, and the Wilcox sand in South Texas. The data were collected and organized by cost category for each formation. After the information was input into a data base, a simple statistical analysis was performed. The statistical analysis identified data discrepancies that were then resolved, and it helped allow conclusions to be drawn regarding drilling and completion costs in these tight sand formations. Results are presented.

Brunsman, B. (Gas Research Inst., Chicago, IL (United States)); Saunders, B. (S.A. Holditch Associates Inc., College Station, TX (United States))

1994-06-06T23:59:59.000Z

282

Improve drilling efficiency with two nozzles and more weight-on-bit  

SciTech Connect

Field tests evaluated the performance of three-cone insert bits using only two nozzles sized from pressure measurements made at the rig to give maximum hydraulic impact. The tests were conducted on two rigs in California and three in Texas. Test techniques entailed finding a suitable formation that required two identical bits to drill through. The first bit was operated with three nozzles while the subsequent bit was operated with two nozzles. During the test the drilling parameters (such as weight-on-bit, rotary speed, nozzle flow area, pump pressure, circulation rate, and mud weight) were kept as constant as possible. Drilling rates of the two bits were then compared and analyzed with the aid of mud-logs, electric-logs, and drilling recorder information. The depth and the relative position of the formation were also carefully compared with offset well bit records.

Tsai, C.R.; Robinson, L.H.

1983-02-01T23:59:59.000Z

283

ESF Consortium for Ocean Drilling White Paper  

E-Print Network (OSTI)

ESF Consortium for Ocean Drilling (ECOD) White Paper An ESF Programme September 2003 #12;The Scotia in 1978 and had previously sailed the world as a top-class oil-exploration vessel. JOIDES, maintains the ship over a specific location while drilling into water depths up to 27,000 feet. A seven

Purkis, Sam

284

Record geothermal well drilled in hot granite  

Science Journals Connector (OSTI)

Record geothermal well drilled in hot granite ... Researchers there have completed the second of two of the deepest and hottest geothermal wells ever drilled. ... It may become the energy source for a small electrical generating power station serving nearby communities in New Mexico. ...

1981-09-07T23:59:59.000Z

285

OCEAN DRILLING PROGRAM LEG 157 SCIENTIFIC PROSPECTUS  

E-Print Network (OSTI)

." The source area, Gran Canaria, one of the best studied volcanic islands, has a 15-m.y.-long record the Miocene, Pliocene, and Quaternary compositionally evolved volcanic phases on Gran Canaria and neighboringOCEAN DRILLING PROGRAM LEG 157 SCIENTIFIC PROSPECTUS DRILLING INTO THE CLASTIC APRON OF GRAN

286

OCEAN DRILLING PROGRAM LEG 164 SCIENTIFIC PROSPECTUS  

E-Print Network (OSTI)

OCEAN DRILLING PROGRAM LEG 164 SCIENTIFIC PROSPECTUS GAS HYDRATE SAMPLING ON THE BLAKE RIDGE Drive College Station, Texas 77845-9547 U.S.A. Timothy J.G. Francis Acting Director ODP/TAMU Jack Drilling Program, Texas A&M University Research Park, 1000 Discovery Drive, College Station, Texas, 77845

287

Comparative analysis of core drilling and rotary drilling in volcanic terrane  

SciTech Connect

Initially, the goal of this report is to compare and contrast penetration rates of rotary-mud drilling and core drilling in young volcanic terranes. It is widely recognized that areas containing an abundance of recent volcanic rocks are excellent targets for geothermal resources. Exploration programs depend heavily upon reliable subsurface information, because surface geophysical methods may be ineffective, inconclusive, or both. Past exploration drilling programs have mainly relied upon rotary-mud rigs for virtually all drilling activity. Core-drilling became popular several years ago, because it could deal effectively with two major problems encountered in young volcanic terranes: very hard, abrasive rock and extreme difficulty in controlling loss of circulation. In addition to overcoming these difficulties, core-drilling produced subsurface samples (core) that defined lithostratigraphy, structure and fractures far better than drill-chips. It seemed that the only negative aspect of core drilling was cost. The cost-per-foot may be two to three times higher than an ''initial quote'' for rotary drilling. In addition, penetration rates for comparable rock-types are often much lower for coring operations. This report also seeks to identify the extent of wireline core drilling (core-drilling using wireline retrieval) as a geothermal exploration tool. 25 refs., 21 figs., 13 tabs.

Flynn, T.; Trexler, D.T.; Wallace, R.H. Jr. (ed.)

1987-04-01T23:59:59.000Z

288

Alpine Geothermal Drilling | Open Energy Information  

Open Energy Info (EERE)

Geothermal Drilling Geothermal Drilling Jump to: navigation, search Logo: Alpine Geothermal Drilling Name Alpine Geothermal Drilling Address PO Box 141 Place Kittredge, Colorado Zip 80457 Sector Geothermal energy Product Geothermal drilling solutions, subsidiary of Rocky Mountain GeoExploration Inc Website http://www.alpinegeothermal.co Coordinates 39.64888°, -105.2984842° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.64888,"lon":-105.2984842,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

289

Salt Wells Geothermal Exploratory Drilling Program EA  

Open Energy Info (EERE)

Salt Wells Geothermal Exploratory Drilling Program EA Salt Wells Geothermal Exploratory Drilling Program EA (DOI-BLM-NV-C010-2009-0006-EA) Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Salt Wells Geothermal Exploratory Drilling Program EA (DOI-BLM-NV-C010-2009-0006-EA) Abstract No abstract available. Author Bureau of Land Management Published U.S. Department of the Interior- Bureau of Land Management, Carson City Field Office, Nevada, 09/14/2009 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Salt Wells Geothermal Exploratory Drilling Program EA (DOI-BLM-NV-C010-2009-0006-EA) Citation Bureau of Land Management. Salt Wells Geothermal Exploratory Drilling Program EA (DOI-BLM-NV-C010-2009-0006-EA) [Internet]. 09/14/2009. Carson City, NV. U.S. Department of the Interior- Bureau of Land Management,

290

Definition: Exploration Drilling | Open Energy Information  

Open Energy Info (EERE)

Exploration Drilling Exploration Drilling Jump to: navigation, search Dictionary.png Exploration Drilling Exploratory drilling is the Initial phase of drilling for the purpose of determining the physical properties and boundaries of a reservoir. View on Wikipedia Wikipedia Definition Geothermal Exploration is the exploration of the subsurface in search of viable active geothermal regions with the goal of building a geothermal power plant, where hot fluids drive turbines to create electricity. Exploration methods include a broad range of disciplines including geology, geophysics, geochemistry and engineering. Geothermal regions with adequate heat flow to fuel power plants are found in rift zones, subduction zones and mantle plumes. Hot spots are characterized by four geothermal elements. An active region will have: Heat Source - Shallow

291

Development of techniques in magnetic resonance and structural studies of the prion protein  

SciTech Connect

Magnetic resonance is the most powerful analytical tool used by chemists today. Its applications range from determining structures of large biomolecules to imaging of human brains. Nevertheless, magnetic resonance remains a relatively young field, in which many techniques are currently being developed that have broad applications. In this dissertation, two new techniques are presented, one that enables the determination of torsion angles in solid-state peptides and proteins, and another that involves imaging of heterogenous materials at ultra-low magnetic fields. In addition, structural studies of the prion protein via solid-state NMR are described. More specifically, work is presented in which the dependence of chemical shifts on local molecular structure is used to predict chemical shift tensors in solid-state peptides with theoretical ab initio surfaces. These predictions are then used to determine the backbone dihedral angles in peptides. This method utilizes the theoretical chemicalshift tensors and experimentally determined chemical-shift anisotropies (CSAs) to predict the backbone and side chain torsion angles in alanine, leucine, and valine residues. Additionally, structural studies of prion protein fragments are described in which conformationally-dependent chemical-shift measurements were made to gain insight into the structural differences between the various conformational states of the prion protein. These studies are of biological and pathological interest since conformational changes in the prion protein are believed to cause prion diseases. Finally, an ultra-low field magnetic resonance imaging technique is described that enables imaging and characterization of heterogeneous and porous media. The notion of imaging gases at ultra-low fields would appear to be very difficult due to the prohibitively low polarization and spin densities as well as the low sensitivities of conventional Faraday coil detectors. However, Chapter 5 describes how gas imaging at ultra-low fields is realized by incorporating the high sensitivities of a dc superconducting quantum interference device (SQUID) with the high polarizations attainable through optica11y pumping {sup 129}Xe gas.

Bitter, Hans-Marcus L.

2000-07-01T23:59:59.000Z

292

Smaller Footprint Drilling System for Deep and Hard Rock Environments; Feasibility of Ultra-High-Speed Diamond Drilling  

SciTech Connect

The two phase program addresses long-term developments in deep well and hard rock drilling. TerraTek believes that significant improvements in drilling deep hard rock will be obtained by applying ultra-high rotational speeds (greater than 10,000 rpm). The work includes a feasibility of concept research effort aimed at development that will ultimately result in the ability to reliably drill ''faster and deeper'' possibly with smaller, more mobile rigs. The principle focus is on demonstration testing of diamond bits rotating at speeds in excess of 10,000 rpm to achieve high rate of penetration (ROP) rock cutting with substantially lower inputs of energy and loads. The significance of the ''ultra-high rotary speed drilling system'' is the ability to drill into rock at very low weights on bit and possibly lower energy levels. The drilling and coring industry today does not practice this technology. The highest rotary speed systems in oil field and mining drilling and coring today run less than 10,000 rpm-usually well below 5,000 rpm. This document details the progress at the end of Phase 1 on the program entitled ''Smaller Footprint Drilling System for Deep and Hard Rock Environments: Feasibility of Ultra-High-Speed Diamond Drilling'' for the period starting 1 March 2006 and concluding 30 June 2006. (Note: Results from 1 September 2005 through 28 February 2006 were included in the previous report (see Judzis, Black, and Robertson)). Summarizing the accomplished during Phase 1: {lg_bullet} TerraTek reviewed applicable literature and documentation and convened a project kickoff meeting with Industry Advisors in attendance (see Black and Judzis). {lg_bullet} TerraTek designed and planned Phase I bench scale experiments (See Black and Judzis). Some difficulties continued in obtaining ultra-high speed motors. Improvements were made to the loading mechanism and the rotational speed monitoring instrumentation. New drill bit designs were developed to provided a more consistent product with consistent performance. A test matrix for the final core bit testing program was completed. {lg_bullet} TerraTek concluded Task 3 ''Small-scale cutting performance tests.'' {sm_bullet} Significant testing was performed on nine different rocks. {sm_bullet} Five rocks were used for the final testing. The final tests were based on statistical design of experiments. {sm_bullet} Two full-faced bits, a small diameter and a large diameter, were run in Berea sandstone. {lg_bullet} Analysis of data was completed and indicates that there is decreased specific energy as the rotational speed increases (Task 4). Data analysis from early trials was used to direct the efforts of the final testing for Phase I (Task 5). {lg_bullet} Technology transfer (Task 6) was accomplished with technical presentations to the industry (see Judzis, Boucher, McCammon, and Black).

Arnis Judzis; Homer Robertson; Alan Black

2006-06-22T23:59:59.000Z

293

Review of In-Service Inspection and Repair Technique Developments for French Liquid Metal Fast Reactors  

SciTech Connect

In-service monitoring of nuclear plants is indispensable for both the Operator and the Regulator. The notion of in-service monitoring ranges from the continuous monitoring of the reactor in operation to the thorough in-service reactor inspection during programmed shutdowns. However, the highly specific environment found in French liquid metal fast reactor plants - Phenix and Superphenix - makes monitoring and inspection complicated because of the use of a sodium coolant that is hot, opaque, and difficult to drain.The Commissariat a l'Energie Atomique, in collaboration with its traditional French partners, Electricite de France utilities and FRAMATOME/Novatome Engineering, decided to conduct a 6-yr research and development program (1994-2000) to explore this problem vis-a-vis Superphenix, as well as the possibilities of intervening within the reactor block or on components in a sodium environment. Furthermore, the safety reevaluation of Phenix, conducted between 1994 and 2003, represented an excellent 'test bench' during which the limits of inspection processes - applied to an integrated reactor concept - were surpassed using techniques such as fuel subassembly head scanning, ultrasonic examination of the core support, and visual inspection of the cover-gas plenum following a partial sodium draining. Repair techniques were investigated for cleaning of sodium wet structure surfaces, cutting of damaged parts, and welding in sodium aerosol atmosphere. Both conventional and laser processes were tested.

Baque, F. [Commissariat a l'Energie Atomique Cadarache (France)

2005-04-15T23:59:59.000Z

294

MICROSCOPY RESEARCH AND TECHNIQUE 20:371-389 (1992) Developments in the Dynamical Theory of High Energy  

E-Print Network (OSTI)

Energy Electron Reflection Y. MA AND L.D. MARKS Materials Research Center, Northwestern University,Euanston, Illinois 60208 KEY WORDS ABSTRACT High energy electron reflection (HEER) is an important techniqueMICROSCOPY RESEARCH AND TECHNIQUE 20:371-389 (1992) Developments in the Dynamical Theory of High

Marks, Laurence D.

295

Bureau of Land Management - Geothermal Drilling Permit | Open...  

Open Energy Info (EERE)

Bureau of Land Management - Geothermal Drilling Permit Jump to: navigation, search OpenEI Reference LibraryAdd to library Form: Bureau of Land Management - Geothermal Drilling...

296

Georgia Oil and Gas Deep Drilling act of 1975 (Georgia)  

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

Georgia's Oil and Gas and Deep Drilling Act regulates oil and gas drilling activities to provide protection of underground freshwater supplies and certain "environmentally sensitive" areas. The...

297

Laser Drills Could Relight Geothermal Energy Dreams | Department...  

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

Laser Drills Could Relight Geothermal Energy Dreams Laser Drills Could Relight Geothermal Energy Dreams December 14, 2012 - 12:26pm Addthis Commercial-grade laser technology is...

298

DEVELOPMENT OF A VIRTUAL INTELLIGENCE TECHNIQUE FOR THE UPSTREAM OIL INDUSTRY  

SciTech Connect

The objective of the research and development work reported in this document was to develop a Virtual Intelligence Technique for optimization of the Preferred Upstream Management Practices (PUMP) for the upstream oil industry. The work included the development of a software tool for identification and optimization of the most influential parameters in upstream common practices as well as geological, geophysical and reservoir engineering studies. The work was performed in cooperation with three independent producing companies--Newfield Exploration, Chesapeake Energy, and Triad Energy--operating in the Golden Trend, Oklahoma. In order to protect data confidentiality, these companies are referred to as Company One, Two, Three in a randomly selected order. These producing companies provided geological, completion, and production data on 320 wells and participated in frequent technical discussions throughout the project. Research and development work was performed by Gas Technology Institute (GTI), West Virginia University (WVU), and Intelligent Solutions Inc. (ISI). Oklahoma Independent Petroleum Association (OIPA) participated in technology transfer and data acquisition efforts. Deliverables from the project are the present final report and a user-friendly software package (Appendix D) with two distinct functions: a characterization tool that identifies the most influential parameters in the upstream operations, and an optimization tool that seeks optimization by varying a number of influential parameters and investigating the coupled effects of these variations. The electronic version of this report is also included in Appendix D. The Golden Trend data were used for the first cut optimization of completion procedures. In the subsequent step, results from soft computing runs were used as the guide for detailed geophysical and reservoir engineering studies that characterize the cause-and-effect relationships between various parameters. The general workflow and the main performing units were as follows: (1) Data acquisition. (GTI, OIPA, Participating producers.) (2) Development of the virtual intelligence software. (WVU, ISI); (3) Application of the software on the acquired data. (GTI, ISI); (4) Detailed production analysis using conventional engineering techniques and the DECICE neural network software. (GTI) and (5) Detailed seismic analysis using Inspect spectral decomposition package and Hapmson-Russell's EMERGE inversion package. (GTI) Technology transfer took place through several workshops held at offices of the participating companies, at OIPA offices, and presentations at the SPE panel on soft computing applications and at the 2003 annual meeting of Texas Independent Producers and Royalty Owners Association (TIPRO). In addition, results were exhibited at the SPE annual meeting, published in GasTips, and placed on the GTI web page. Results from the research and development work were presented to the producing companies as a list of recommended recompletion wells and the corresponding optimized operations parameters. By the end of the project, 16 of the recommendations have been implemented the majority of which resulted in increased production rates to several folds. This constituted a comprehensive field demonstration with positive results.

Iraj A. Salehi; Shahab D. Mohaghegh; Samuel Ameri

2004-09-01T23:59:59.000Z

299

Development of analytical techniques to study H2s poisoning of PEMFCs and components  

SciTech Connect

Polymer electrolyte membrane fuel cells are sensitive to impurities that may be present in either the oxidizer or fuel. H{sub 2}S, even at the ppb level, will have a dramatic and adverse affect on fuel cell performance. Not only is it important to know a particular material's affinity to adsorb H{sub 2}S, when considering materials for PEMFC applications, issues such as permeation and crossover rates also become extremely important Several experimental methods have been developed to quantify H{sub 2}S adsorption onto surfaces and to quantify H{sub 2}S permeation through Nafion(reg.) membranes using readily available and inexpensive Ag/AgS ion probes. In addition to calculating the H{sub 2}S uptake on commonly used XC-72 carbon supports and PtlXC-72 catalysts, the H{sub 2}S permeability through dry and humidified Nafion(reg.) PEMFC membranes was also studied using these specialized techniques. In each ion probe experiment performed, a sulfide anti-oxidant buffer solution was used to trap and concentrate trace quantities of H{sub 2}S during the course of the measurement. Crossover experiments were conducted for up to 24 hours in order to achieve sulfide ion concentrations high enough to be precisely determined by subsequent titration with Pb(NO{sub 3}){sub 2}. By using these techniques, we have confirmed H{sub 2}S crossover in Nafion(reg.) membranes and have calculated preliminary rates of H{sub 2}S crossover.

Brosha, Eric L [Los Alamos National Laboratory; Rockward, Tommy [Los Alamos National Laboratory; Uribe, Francisco A [Los Alamos National Laboratory; Garzon, Fernando H [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

300

Phase III Drilling Operations at the Long Valley Exploratory Well (LVF 51-20)  

SciTech Connect

During July-September, 1998, a jointly funded drilling operation deepened the Long Valley Exploratory Well from 7178 feet to 9832 feet. This was the third major drilling phase of a project that began in 1989, but had sporadic progress because of discontinuities in tiding. Support for Phase III came from the California Energy Commission (CEC), the International Continental Drilling Program (ICDP), the US Geological Survey (USGS), and DOE. Each of these agencies had a somewhat different agenda: the CEC wants to evaluate the energy potential (specifically energy extraction from magma) of Long Valley Caldera; the ICDP is studying the evolution and other characteristics of young, silicic calderas; the USGS will use this hole as an observatory in their Volcano Hazards program; and the DOE, through Sandia, has an opportunity to test new geothermal tools and techniques in a realistic field environment. This report gives a description of the equipment used in drilling and testing; a narrative of the drilling operations; compiled daily drilling reports; cost information on the project; and a brief summary of engineering results related to equipment performance and energy potential. Detailed description of the scientific results will appear in publications by the USGS and other researchers.

Finger, J.T.; Jacobson, R.D.

1999-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

Developing new optical imaging techniques for single particle and molecule tracking in live cells  

SciTech Connect

Differential interference contrast (DIC) microscopy is a far-field as well as wide-field optical imaging technique. Since it is non-invasive and requires no sample staining, DIC microscopy is suitable for tracking the motion of target molecules in live cells without interfering their functions. In addition, high numerical aperture objectives and condensers can be used in DIC microscopy. The depth of focus of DIC is shallow, which gives DIC much better optical sectioning ability than those of phase contrast and dark field microscopies. In this work, DIC was utilized to study dynamic biological processes including endocytosis and intracellular transport in live cells. The suitability of DIC microscopy for single particle tracking in live cells was first demonstrated by using DIC to monitor the entire endocytosis process of one mesoporous silica nanoparticle (MSN) into a live mammalian cell. By taking advantage of the optical sectioning ability of DIC, we recorded the depth profile of the MSN during the endocytosis process. The shape change around the nanoparticle due to the formation of a vesicle was also captured. DIC microscopy was further modified that the sample can be illuminated and imaged at two wavelengths simultaneously. By using the new technique, noble metal nanoparticles with different shapes and sizes were selectively imaged. Among all the examined metal nanoparticles, gold nanoparticles in rod shapes were found to be especially useful. Due to their anisotropic optical properties, gold nanorods showed as diffraction-limited spots with disproportionate bright and dark parts that are strongly dependent on their orientation in the 3D space. Gold nanorods were developed as orientation nanoprobes and were successfully used to report the self-rotation of gliding microtubules on kinesin coated substrates. Gold nanorods were further used to study the rotational motions of cargoes during the endocytosis and intracellular transport processes in live mammalian cells. New rotational information was obtained: (1) during endocytosis, cargoes lost their rotation freedom at the late stage of internalization; (2) cargoes performed train-like motion when they were transported along the microtubule network by motor proteins inside live cells; (3) During the pause stage of fast axonal transport, cargoes were still bound to the microtubule tracks by motor proteins. Total internal reflection fluorescence microscopy (TIRFM) is another non-invasive and far-field optical imaging technique. Because of its near-field illumination mechanism, TIRFM has better axial resolution than epi-fluorescence microscopy and confocal microscopy. In this work, an auto-calibrated, prism type, angle-scanning TIRFM instrument was built. The incident angle can range from subcritical angles to nearly 90{sup o}, with an angle interval less than 0.2{sup o}. The angle precision of the new instrument was demonstrated through the finding of the surface plasmon resonance (SPR) angle of metal film coated glass slide. The new instrument improved significantly the precision in determining the axial position. As a result, the best obtained axial resolution was {approx} 8 nm, which is better than current existing instruments similar in function. The instrument was further modified to function as a pseudo TIRF microscope. The illumination depth can be controlled by changing the incident angle of the excitation laser beam or adjusting the horizontal position of the illumination laser spot on the prism top surface. With the new technique, i.e., variable-illumination-depth pseudo TIRF microscopy, the whole cell body from bottom to top was scanned.

Sun, Wei

2010-12-15T23:59:59.000Z

302

Better practices and synthetic fluid improve drilling rates  

SciTech Connect

Improved drilling practices, combined with the use of olefin-based synthetic drilling fluids, have dramatically reduced drilling time and costs in a difficult drilling area in the Gulf of Mexico. In the South Pass area, Marathon Oil Co. and other operators have had wells with long drilling times and high costs. In addition to the two wells with record penetration rates, routine drilling rates have also increased from the use of synthetic mud and careful drilling practices. Through application of these improved drilling practices, 2,000--3,000 ft/day can be drilled routinely. Marathon achieves this goal by applying the experience gained on previous wells, properly training and involving the crews, and using innovative drilling systems. Improved drilling practices and systems are just one part of successful, efficient drilling. Rig site personnel are major contributors to safely and successfully drilling at high penetration rates for extended periods. The on site personnel must act as a team and have the confidence and proper mental attitude about what is going on downhole. The paper describes the drilling history in the South Pass area, the synthetic drilling fluid used, cuttings handling, hole cleaning, drilling practices, bottom hole assemblies, and lost circulation.

White, W. (Marathon Oil Co., Lafayette, LA (United States)); McLean, A.; Park, S. (M-I Drilling Fluids, Houston, TX (United States))

1995-02-20T23:59:59.000Z

303

Measuring while drilling apparatus mud pressure signal valve  

SciTech Connect

This patent describes a measurement while drilling system for borehole drilling having a downhole instrument connectable in a drill string of a rotary drilling rig including apparatus to sense geological and geophysical parameters and a valve apparatus to pulse modulate drilling fluid flowing in the drill string. A surface apparatus is connected to a drilling fluid flow conductor for extracting intelligence carrying information from the modulated drilling fluid. An improved valve apparatus is described comprising: (a) a drilling fluid flow pulse modulating pressure pulse valve member longitudinally, movably mounted in a body member and movable from a retracted position substantially removed from the drilling fluid flow and an extended position disposed at least partially within the drilling fluid flow thereby temporarily restricting drilling fluid flow within the drill string; and (b) the pulse valve member is a tubular member having a lower end portion displaceable from the body member into the drilling fluid and an upper end portion with opposed fluid pressure force areas thereon being in fluid communication with the drilling fluid flow such that forces due to the drilling fluid acting on the pressure pulse valve member are balanced in a longitudinal direction.

Peppers, J.M.; Shaikh, F.A.

1986-12-09T23:59:59.000Z

304

NETL: News Release - New Carbon Drill Pipe Signals Technical Achievement  

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

May 17, 2004 May 17, 2004 New Carbon Drill Pipe Signals Technical Achievement Technology May Benefit American Energy Production WASHINGTON, DC -- The Department of Energy (DOE) announced today the development of a new "composite" drill pipe that is lighter, stronger and more flexible than steel, which could significantly alter the ability to drain substantially more oil and gas from rock than traditional vertical wells. MORE INFO Read about January, 2003 field test Read about October, 2003 field test - "This is another example of the technology breakthroughs in the arena of domestic energy production being carried out by our Office of Fossil Energy," said Secretary of Energy Spencer Abraham. "To reach and recover untapped domestic oil and gas reserves, we must have the ability to

305

NETL: News Release - Regional Partner Launches Drilling Test in DOE's  

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

August 30, 2007 August 30, 2007 Regional Partner Launches Drilling Test in DOE's Carbon Sequestration Program Project Focuses on Greenhouse Gas Storage in Lignite Seam, Methane Gas Recovery MORGANTOWN, WV - As an integral part of the U.S. Department of Energy's effort to develop carbon sequestration technologies to capture and permanently store greenhouse gases, the Plains CO2 Reduction (PCOR) Partnership has begun drilling operations to determine the suitability of a North Dakota lignite coal seam to simultaneously sequester the greenhouse gas carbon dioxide and produce valuable coalbed methane. The PCOR Partnership-one of seven partnerships in the Department of Energy's Regional Carbon Sequestration Partnership Program, which is managed by the National Energy Technology Laboratory-plans to inject at least 400 tons of CO2 to a depth of approximately 1,200 feet into an unminable lignite seam in Burke County, ND.

306

Rotating mousehole improves top drive/conventional drilling  

SciTech Connect

Top drive speed and efficiency are limited and have not reached full potential because of operation ``bottlenecks`` during makeup or breakout of triple pipe stands and bottomhole assembly (BHA) change out. Operators and contractors analyzed tools to overcome these limitations and found a potential solution from International Tool Co., a supplier of kelly spinners, in a tool that has improved make/break efficiency and rig floor safety. The Phantom Mouse rotating mousehole assembly was developed to improve drilling efficiency on top-drive-equipped rigs. This new device tightens connections so pipe stands can be set back in derricks. Using the system, crews can quickly and efficiently make up and set back DP stands while drilling ahead with top drives. It can also be used to break out and lay down excess DP from the derrick.

NONE

1995-08-01T23:59:59.000Z

307

Limitations of extended reach drilling in deepwater  

E-Print Network (OSTI)

As the worldwide search for hydrocarbons continues into the deepwater of the oceans, drilling extended reach wells have helped to drain the fields in the most cost effective way, thus providing the oil and gas industry the cushion to cope...

Akinfenwa, Akinwunmi Adebayo

2012-06-07T23:59:59.000Z

308

Marine bearing for a downhole drilling apparatus  

SciTech Connect

A bearing supports a rotatable shaft in a fluid environment. The bearing can be utilized to support a drive shaft connected to a drill bit in a downhole drilling apparatus. The drive shaft extends through a housing in which drilling fluid is flowing. Preferably, the bearing includes an inner elastomeric sleeve and an outer rigid sleeve attached to the interior side wall of the housing. The drive shaft has a wear sleeve attached for rotation therewith. The wear sleeve is rotatably received in the bearing inner sleeve. The inner sleeve is relatively short as compared with the drive shaft and absorbs radial loads imposed on the drive shaft. The bearing is lubricated by a portion of the drilling fluid in the housing which flows between the exterior side wall of the wear sleeve and the interior side wall of the inner sleeve.

Beimgraben, H.W.

1984-07-31T23:59:59.000Z

309

Formation damage in underbalanced drilling operations  

E-Print Network (OSTI)

Formation damage has long been recognized as a potential source of reduced productivity and injectivity in both horizontal and vertical wells. From the moment that the pay zone is being drilled until the well is put on production, a formation...

Reyes Serpa, Carlos Alberto

2012-06-07T23:59:59.000Z

310

Fort Bliss exploratory slimholes: Drilling and testing  

SciTech Connect

During November/96 to April/97 Sandia National Laboratories provided consulation, data collection, analysis and project documentation to the U.S. Army for a series of four geothermal exploratory slimholes drilled on the McGregor Range approximately 25 miles north of El Paso, Texas. This drilling was directed toward evaluating a potential reservoir for geothermal power generation in this area, with a secondary objective of assessing the potential for direct use applications such as space heating or water de-salinization. This report includes: representative temperature logs from the wells; daily drilling reports; a narrative account of the drilling and testing; a description of equipment used; a summary and preliminary interpretation of the data; and recommendations for future work.

Finger, J.T.; Jacobson, R.D.

1997-12-01T23:59:59.000Z

311

Annex 7 - The Iea'S Role In Advanced Geothermal Drilling | Open Energy  

Open Energy Info (EERE)

Annex 7 - The Iea'S Role In Advanced Geothermal Drilling Annex 7 - The Iea'S Role In Advanced Geothermal Drilling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Annex 7 - The Iea'S Role In Advanced Geothermal Drilling Details Activities (0) Areas (0) Regions (0) Abstract: No abstract prepared. Author(s): John Travis Finger, Eddie Ross Hoover Published: Publisher Unknown, Date Unknown Document Number: Unavailable DOI: Unavailable Retrieved from "http://en.openei.org/w/index.php?title=Annex_7_-_The_Iea%27S_Role_In_Advanced_Geothermal_Drilling&oldid=389771" Category: Reference Materials What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers Energy blogs Linked Data Developer services OpenEI partners with a broad range of international organizations to grow

312

DOE-Sponsored Drilling Projects Demonstrate Significant CO2 Storage at  

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

DOE-Sponsored Drilling Projects Demonstrate Significant CO2 Storage DOE-Sponsored Drilling Projects Demonstrate Significant CO2 Storage at Three Sites DOE-Sponsored Drilling Projects Demonstrate Significant CO2 Storage at Three Sites May 3, 2012 - 1:00pm Addthis Washington, DC - Evaluation-related test drilling at geologic sites in three states that could store a combined 64 million metric tons of carbon dioxide (CO2) emissions - an important component of carbon capture, utilization and storage (CCUS) technology development - has been completed in projects supported by the U.S. Department of Energy. If the potential of the sites is eventually fulfilled, they could safely and permanently store combined CO2 emissions equivalent to that produced by more than 11 million passenger vehicles annually or from the electricity use of more than 7 million homes for one year, according to Environmental

313

DOE-Sponsored Drilling Projects Demonstrate Significant CO2 Storage at  

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

Drilling Projects Demonstrate Significant CO2 Storage Drilling Projects Demonstrate Significant CO2 Storage at Three Sites DOE-Sponsored Drilling Projects Demonstrate Significant CO2 Storage at Three Sites May 3, 2012 - 1:00pm Addthis Washington, DC - Evaluation-related test drilling at geologic sites in three states that could store a combined 64 million metric tons of carbon dioxide (CO2) emissions - an important component of carbon capture, utilization and storage (CCUS) technology development - has been completed in projects supported by the U.S. Department of Energy. If the potential of the sites is eventually fulfilled, they could safely and permanently store combined CO2 emissions equivalent to that produced by more than 11 million passenger vehicles annually or from the electricity use of more than 7 million homes for one year, according to Environmental

314

Carbon Sequestration Partner Initiates Drilling of CO2 Injection Well in  

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

Sequestration Partner Initiates Drilling of CO2 Injection Sequestration Partner Initiates Drilling of CO2 Injection Well in Illinois Basin Carbon Sequestration Partner Initiates Drilling of CO2 Injection Well in Illinois Basin February 17, 2009 - 12:00pm Addthis Washington, D.C. -- The Midwest Geological Sequestration Consortium (MGSC), one of seven regional partnerships created by the U.S. Department of Energy (DOE) to advance carbon sequestration technologies nationwide, has begun drilling the injection well for their large-scale carbon dioxide (CO2) injection test in Decatur, Illinois. The test is part of the development phase of the Regional Carbon Sequestration Partnerships program, an Office of Fossil Energy initiative launched in 2003 to determine the best approaches for capturing and permanently storing gases that can contribute

315

DOE Project Leads to New Alliance to Promote Low-Impact Drilling |  

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

Project Leads to New Alliance to Promote Low-Impact Drilling Project Leads to New Alliance to Promote Low-Impact Drilling DOE Project Leads to New Alliance to Promote Low-Impact Drilling February 25, 2009 - 12:00pm Addthis Washington, DC -- A project supported by the Office of Fossil Energy's National Energy Technology Laboratory (NETL) has given rise to a major new research consortium to promote advanced technology for low-impact oil and gas drilling. Announced earlier this month by the Houston Advanced Research Center (HARC) and Texas A&M University, the University/National Laboratory Alliance will fund and transfer advanced technologies to accelerate development of domestic oil and natural gas resources with minimal environmental impact. The alliance has its roots in a project funded through the Office of Fossil

316

HP-41CV applied drilling engineering manual  

SciTech Connect

Contents of this manual are as follows: average diameter of an open hole; pump cycle, pump factor, and annulus capacity; drilling-time and penetration rate predictions; nozzle selection; direction well survey; viscosity of drilling fluids; barite requirements with solids dilution; solids analysis and recommended flow properties; evaluation of hydrocyclones; frictional pressure loss; surge and swab pressures; pressure and average density of a gas column; cement additive requirements; kick tolerance, severity, length and density; and pump pressure schedule for well control operations.

Chenevert, M.; Williams, F.; Hekimian, H.

1983-01-01T23:59:59.000Z

317

NETL: News Release - New Seismic Technology Improves Pre-Drill Diagnostics  

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

June 12, 2007 June 12, 2007 New Seismic Technology Improves Pre-Drill Diagnostics for Deep Oil and Gas Reservoirs WASHINGTON, DC - New technology developed through a cost-shared project managed by the Office of Fossil Energy's National Energy Technology Laboratory is improving industry's ability to identify commercially viable deep oil and gas targets prior to drilling. Applications of this groundbreaking technology will help to accelerate future development of deep oil and gas resources in the United States. As the oil and gas industry turns its attention toward deeper targets, particularly in the Gulf of Mexico, the tremendous costs involved require advanced technologies for pre-drill evaluation of a deep prospect's location, size, and hydrocarbon charge. Rock Solid Images, of Houston, Texas, answered the call with their much-needed pre-drill seismic imaging technology. The patented new technology improves pre-drill oil and gas detection in the reservoir and reduces the risks associated with drilling deep wells. With a significant portion of the Nation's oil and natural gas resource trapped in deep reservoirs, the new seismic technology represents a much-needed improvement that should bring more deep oil and gas to market.

318

Chapter 2 - Offshore Oil and Gas Drilling Engineering and Equipment  

Science Journals Connector (OSTI)

Abstract This chapter introduces the drilling engineering and equipment in the field of offshore oil and gas.It starts by introducing the drilling platform used in the offshore oil and gas. Then it presents the wellhead and wellhead devices used in the offshore oil and gas. After these two, it begins to introduce the drilling engineer including preparation, working procedure, well completion and so on. Finally, it roughly introduces the new technology in drilling and new drilling rig nowadays.

Huacan Fang; Menglan Duan

2014-01-01T23:59:59.000Z

319

Developments in the characterization of complex rock slope deformation and failure using numerical modelling techniques  

E-Print Network (OSTI)

Fraser University, Burnaby, BC, Canada b Geological Engineering/Earth and Ocean Sciences, University techniques with modifications to include probabilistic techniques, coupling of groundwater simulations and simplistic treatment of intact fracture and plastic yield. Such analyses are primarily suited to simple

320

ALTERNATE POWER AND ENERGY STORAGE/REUSE FOR DRILLING RIGS: REDUCED COST AND LOWER EMISSIONS PROVIDE LOWER FOOTPRINT FOR DRILLING OPERATIONS  

E-Print Network (OSTI)

on alternate drilling energy sources which can make entire drilling process economic and environmentally friendly. One of the major ways to reduce the footprint of drilling operations is to provide more efficient power sources for drilling operations...

Verma, Ankit

2010-07-14T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

Restored Drill Cuttings for Wetlands Creation: Results of Mesocosm Approach to Emulate Field Conditions Under Varying Salinity and Hydrologic Conditions  

SciTech Connect

Both interstitial water and plant tissue associated with the DC-A substrate exhibited low metal concentrations. Also in agreement with the previous study, plant performance in the DC-A substrate was found to be comparable to plant performance in the dredge spoil and topsoil substrates. This was extremely important because it indicated that the drill cuttings themselves served as an excellent substrate for wetland plant growth, but that the processing and stabilization techniques and drilling fluid formulations required further refinement.

Hester, Mark W.; Shaffer, Gary P.; Willis, Jonathan M.; DesRoches, Dennis J.

2002-06-03T23:59:59.000Z

322

Development of a heavy-ion identification method using a combined time-of-flight [delta]E-E technique  

E-Print Network (OSTI)

DEVELOPMENT OF A HEAVY-ION IDENTIFICATION METHOD USING A COMBINED TIME-OF-FLIGHT, AE-E TECHNIQUE A Thesis by ROY GENE HANUS e Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE August 1976 Major Subject: Physics DEVELOPMENT OF A HEAVY-ION IDENTIFICATION METHOD USING A COMBINED TIME-OF-FLIGHT, BE-E TECHNIQUE A Thesis by ROY GENE HANUS Approved as to style and content by: (Chairman of Committee) (Head...

Hanus, Roy Gene

1976-01-01T23:59:59.000Z

323

Drilling Waste Management Fact Sheet: Discharge to Ocean  

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

Discharge to Ocean Discharge to Ocean Fact Sheet - Discharge to Ocean Past Practices In early offshore oil and gas development, drilling wastes were generally discharged from the platforms directly to the ocean. Until several decades ago, the oceans were perceived to be limitless dumping grounds. During the 1970s and 1980s, however, evidence mounted that some types of drilling waste discharges could have undesirable effects on local ecology, particularly in shallow water. When water-based muds (WBMs) were used, only limited environmental harm was likely to occur, but when operators employed oil-based muds (OBMs) on deeper sections of wells, the resulting cuttings piles created impaired zones beneath and adjacent to the platforms. At some North Sea locations, large piles of oil-based cuttings remain on the sea floor near the platforms. Piles of oil-based cuttings can affect the local ecosystem in three ways: by smothering organisms, by direct toxic effect of the drilling waste, and by anoxic conditions caused by microbial degradation of the organic components in the waste. Current regulatory controls minimize the impacts of permitted discharges of cuttings.

324

Cutting and drilling studies using high power visible lasers  

SciTech Connect

High power and radiance laser technologies developed at Lawrence Livermore National Laboratory such as copper-vapor and dye lasers show great promise for material processing tasks. Evaluation of models suggests significant increases in welding, cutting, and drilling capabilities, as well as applications in emerging technologies such as micromachining, surface treatment, and stereolithography. Copper lasers currently operate at 1.8 kW output at approximately three times the diffraction limit and achieve mean time between failures of more than 1,000 hours. Dye lasers have near diffraction limited beam quality at greater than 1.0 kW. Results from cutting and drilling studies in titanium and stainless steel alloys show that cuts and holes with extremely fine features can be made with dye and copper-vapor lasers. High radiance beams produce low distortion and small heat-affected zones. The authors have accomplished very high aspect ratios (> 60:1) and features with micron scale (5-50 {mu}m) sizes. The paper gives a description of the equipment; discusses cutting theory; and gives experimental results of cutting and drilling studies on Ti-6Al-4V and 304 stainless steel.

Kautz, D.D.; Dragon, E.P.; Werve, M.E.; Hargrove, R.S.; Warner, B.E.

1993-05-27T23:59:59.000Z

325

Status of water jet drilling R and D. Final report  

SciTech Connect

Several computerized data bases were searched, and telephone interviews were conducted with nearly 100 experts in drilling R and D. The following information was obtained for each organization engaged in water jet drilling (WJD) R and D: program descriptions, program status, future plans, level of effort, source of funds, and problems encountered in WJD programs. WJD programs were classified in terms of surface pressure requirements. A total of 18 downhole-WJD programs were identified, with 9 using high surface pressures (5000 psi or higher) and 9 requiring only conventional or low surface pressures (generally below 3500 psi). The high-pressure approach to WJD has been investigated much more intensively than the low-pressure approach. Most drilling experts consider the lack of reliable surface equipment such as mud pumps and swivels to be the most critical problem associated with high-pressure WJD. Several programs to develop improved surface equipment for high-pressure operation were also identified. In addition, 28 organizations investigating non-downhole uses of water jets, such as mining or excavation, were also identified. Several large WJD programs were terminated during the 1970's because of a variety of problems. Two significant field programs are planned for 1980.

Breitstein, L.

1980-09-01T23:59:59.000Z

326

Development of a Cell Patterning Technique Using Poly(Ethylene Glycol) Disilane  

Science Journals Connector (OSTI)

A simple technique for controlling cell adhesion on glass substrates by surface modification using a commercially available poly(ethylene glycol) (PEG) disilane, which can bind directly to glass in ... 3T3 fibrob...

Daniel Irimia; Jens O.M. Karlsson

2003-09-01T23:59:59.000Z

327

Application of integrated reservoir management and reservoir characterization to optimize infill drilling. Annual report, June 13, 1994--June 12, 1995  

SciTech Connect

This project has used a multi-disciplinary approach employing geology, geophysics, and engineering to conduct advanced reservoir characterization and management activities to design and implement an optimized infill drilling program at the North Robertson (Clearfork) Unit in Gaines County, Texas. The activities during the first Budget Period have consisted of developing an integrated reservoir description from geological, engineering, and geostatistical studies, and using this description for reservoir flow simulation. Specific reservoir management activities are being identified and tested. The geologically targeted infill drilling program will be implemented using the results of this work. A significant contribution of this project is to demonstrate the use of cost-effective reservoir characterization and management tools that will be helpful to both independent and major operators for the optimal development of heterogeneous, low permeability shallow-shelf carbonate (SSC) reservoirs. The techniques that are outlined for the formulation of an integrated reservoir description apply to all oil and gas reservoirs, but are specifically tailored for use in the heterogeneous, low permeability carbonate reservoirs of West Texas.

Pande, P.K.

1996-11-01T23:59:59.000Z

328

Method and apparatus of assessing down-hole drilling conditions  

DOE Patents (OSTI)

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

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

2007-04-24T23:59:59.000Z

329

Dual, rotating stripper rubber drilling head  

SciTech Connect

In a drilling head for a well bore through which a tool string of varying outside diameter is run, the drilling head sealing against fluid flow past the tool string to divert such fluid through a side outlet port, said drilling head including a housing having an axial passageway through which the tool string is run and a bearing assembly to facilitate rotation of the tool string within the axial passageway, the improved drilling head comprising: first and second stripper rubbers rotatably mounted within the drilling head housing in seating contact with the tool string, said stripper rubbers having substantially identical inner diameters through which the tool string extends, said first stripper rubber formed of an abrasive resistant material to divert fluid flow from the axial passageway of the housing to the side outlet port and said second stripper rubber formed on a sealingly resilient material which maintains sealing contact with the tool string extending there through preventing fluid flow past said tool string; said first stripper rubber being corrected to clamping means associated with the bearing assembly through a first drive ring such that said first stripper rubber rotates with the tool string; and said second stripper rubber is rotatably connected to said clamping means associated with the bearing assembly through a second drive ring, said first and second drive rings coaxially mounted within the housing whereby said first stripper rubber is positioned axially below said second stripper rubber in sealing contact with the tool string.

Bailey, T.F.; Campbell, J.E.

1993-05-25T23:59:59.000Z

330

A technique has been developed to accurately align a laser beam through a plasma channel by minimizing the  

E-Print Network (OSTI)

for radiation sources ­ ranging from coherent THz to free electron laser (FEL) x-ray sources and ThomsonAbstract A technique has been developed to accurately align a laser beam through a plasma channel by minimizing the shift in laser centroid and angle at the channel outptut. If only the shift in centroid

Geddes, Cameron Guy Robinson

331

Support for Offshore Oil and Gas Drilling among the California Public  

E-Print Network (OSTI)

of support for offshore oil drilling that accompanied thein Support for Offshore Oil Drilling The earliest FieldPoll question about offshore oil drilling was asked in 1977.

Smith, Eric R.A.N.

2003-01-01T23:59:59.000Z

332

Public Support for Oil and Gas Drilling in California's Forests and Parks  

E-Print Network (OSTI)

Abstract: Offshore oil drilling has been controversial inCalifornia for decades. Oil drilling in national forests hasopinion regarding oil drilling in California's forests. We

Smith, Eric R.A.N.; Carlisle, Juliet; Michaud, Kristy

2004-01-01T23:59:59.000Z

333

Laboratory evaluation of filtercake cleanup techniques and metallic-screens plugging mechanisms in horizontal wells  

E-Print Network (OSTI)

Tests were conducted to evaluate the plugging mechanisms of metallic screens after cleaning up the altercate developed on an unconsolidated core by two exiting drill-in fluids (DIF's). Two simulated drill solids, clay or 75-[]m reservoir sand were...

Garcia Orrego, Gloria Stella

1999-01-01T23:59:59.000Z

334

Data transmission element for downhole drilling components  

DOE Patents (OSTI)

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

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

2006-01-31T23:59:59.000Z

335

Directional Drilling Systems | Open Energy Information  

Open Energy Info (EERE)

Directional Drilling Systems Directional Drilling Systems Jump to: navigation, search Geothermal ARRA Funded Projects for Directional Drilling Systems Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":200,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026 further results","default":"","geoservice":"google","zoom":14,"width":"600px","height":"350px","centre":false,"layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","icon":"","visitedicon":"","forceshow":true,"showtitle":true,"hidenamespace":false,"template":false,"title":"","label":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"locations":[{"text":"

336

Abstract -A Fourier technique is developed that relates a digital to analog converters (DACs)  

E-Print Network (OSTI)

- formation, referred to as integral nonlinearity (INL), to the DAC's linear transformation. Nonzero INL frequency spectrum. This technique can also be used to relate a DAC?s INL to its harmonic distortion. Using that has been amplitude shifted1 so that its minimum value equals x0, and INLk-x0 is the DAC?s INL at x

Bruce, J.W.

337

Independent Statistics & Analysis Drilling Productivity Report  

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

Independent Statistics & Analysis Independent Statistics & Analysis Drilling Productivity Report The six regions analyzed in this report accounted for nearly 90% of domestic oil production growth and virtually all domestic natural gas production growth during 2011-12. December 2013 For key tight oil and shale gas regions U.S. Energy Information Administration Contents Year-over-year summary 2 Bakken 3 Eagle Ford 4 Haynesville 5 Marcellus 6 Niobrara 7 Permian 8 Explanatory notes 9 Sources 10 Bakken Marcellus Niobrara Haynesville Eagle Ford Permian U. S. Energy Information Administration | Drilling Productivity Report 0 400 800 1,200 1,600 2,000 Bakken Eagle Ford Haynesville

338

Dictionary of petroleum exploration, drilling, and production  

SciTech Connect

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

Hyne, N.J.

1991-01-01T23:59:59.000Z

339

Drilling slated to resume in Honduras  

SciTech Connect

Considered to have major oil reserve potential, yet sparsely explored, the onshore Mosquitia basin and its offshore sector are attracting operators back to Honduras who may drill on a level not seen since the mid-1970s. Exploratory drilling is scheduled to resume after a five-hear hiatus. After concluding seismic shooting on its Brus Laguna concession is eastern Honduras, Houston-based Bonavista Oil and Mining Corporation plans to spud the first of three wildcats to test the Mosquitia by next summer.

Kaya, W.; Abraham, K.S.

1989-01-01T23:59:59.000Z

340

Development and application of accurate detection and assay techniques for oilfield scale inhibitors in produced water samples  

SciTech Connect

In the application of chemical inhibitors in field squeeze treatments for the prevention of sulfate and carbonate mineral scale formation, it is very important that the chemical species involved can be accurately assayed. When the inhibitor concentration drops below a predetermined threshold level for scale inhibition (C{sub t}) then the well may need to be resqueezed. The accurate assay of scale inhibitors down to concentration levels of a few ppm in real field brines can be a difficult task. In this paper, the authors examine a number of interferences which often make assay techniques very difficult to apply in field produced brines. The inhibitors examined include phosphonates (PH), polyacrylates (PAA) and phosphinopolycarboxylates (PPCA). The main objective of this work is to develop suitable pre-treatment/purification techniques which allow the standard wet chemical techniques to be applied effectively after appropriate modification. Successful techniques all based on careful modification of existing methods have been developed by which these common inhibitors can be assayed very accurately at ppm and sub-ppm levels in a variety of North Sea field produced waters. This paper examines some of the major problems and interferences associated with poor analysis and introduces modified methods which can be applied in the field without the use of expensive equipment. It is also shown that different detection methods can often be employed in order to avoid more extensive clean-up strategies. Finally, instrumental methods such as ICP analysis (commonly used for phosphonates) are examined and pre-treatment methods are developed which allow phosphino-polycarboxylic acid based inhibitors to be assayed very accurately by this method. The results from an independent assessment by a North Sea operator, using spiked field produced water, are also presented as an independent verification of the accuracy of the techniques which have been developed in this work.

Graham, G.M.; Sorbie, K.S.; Boak, L.S. [Heriot-Watt Univ., Edinburgh (United Kingdom); Taylor, K.; Blilie, L.

1995-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

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

342

Development of a Bulk GaN Growth Technique for Low Defect Density, Large-Area Native Substrates  

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

the Electrochemical Solution the Electrochemical Solution Growth (ESG) Technique for Native GaN Substrates DOE Energy Storage & Power Electronics Research Program 30 September 2008 PI: Karen Waldrip Advanced Power Sources R&D, Dept 2546 PM: Stan Atcitty, John Boyes Sandia National Laboratories, Albuquerque, NM, 87185 Sponsor: Gil Bindewald, DOE Power Electronics & Energy Storage Program Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Outline * Motivation * Existing GaN Growth Technique - Epitaxial Lateral Overgrowth - Methods for Growing Bulk GaN * Development of the Electrochemical Solution Growth Technique

343

Development of a rapid and efficient microinjection technique for gene insertion into fertilized salmonid eggs  

SciTech Connect

An efficient one-step injection technique for gene insertion into fertilized rainbow trout (Oncorhynchus mykiss) eggs is described, and basic parameters affecting egg survival are reported. Freshly fertilized rainbow trout eggs were injected in the perivitelline space with a recombinant mouse metallothionein-genomic bovine growth hormone (bGH) DNA construct using a 30-gauge hypodermic needle and a standard microinjection system. Relative to control, site of injection and DNA concentration did not affect the egg survival, but injections later than 3--4 hours post fertilization were detrimental. The injection technique permitted treatment of 100 eggs/hr with survivals up to 100%, resulting in a 4% DNA uptake rate as indicated by DNA dot blot analysis. Positive dot blot results also indicated that the injected DNA is able to cross the vitelline membrane and persist for 50--60 days post hatching, obviating the need for direct injection into the germinal disk. Results are consistent with previous transgenic fish work, underscoring the usefulness of the technique for generating transgenic trout and salmonids. 24 refs., 6 figs., 3 tabs.

Chandler, D.P.; Welt, M.; Leung, F.C.

1990-10-01T23:59:59.000Z

344

Oil-Based Drilling Fluids: Are they an Environmental Risk?  

Science Journals Connector (OSTI)

The use of oil-based drilling fluids has been discouraged in hydrocarbon exploration ... and production in the marine environment but these drilling fluids are presently being used to a ... Sea have demonstrated ...

F. Payne Jerry; L. Fancey; J. Kiceniuk

1987-01-01T23:59:59.000Z

345

RECENT DEVELOPMkNTS 1N GEOTHERMAC DRILLING FLUIDS  

Office of Scientific and Technical Information (OSTI)

logging Trouble-free drilling was experience 7,916 feet where a twist-off occurred. The fish was recovered without difficulty and drilling resumed. Mud circul ed from the bottom of...

346

DOE and Navy Collaborate on Geothermal Drilling Technology |...  

Energy Savers (EERE)

PDC drill bit is being re-evaluated and improved to reduce the cost of drilling for geothermal energy. To read the Sandia Labs news release, click on the link below:...

347

Geotechnical Drilling in New-Zealand | Open Energy Information  

Open Energy Info (EERE)

Zealand Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Geotechnical Drilling in New-Zealand Author SonicSampDrill Published Publisher Not Provided,...

348

NNSA Small Business Week Day 2: United Drilling, Inc. | National...  

National Nuclear Security Administration (NNSA)

Inc., a small minority-owned business based in Roswell, N.M. United Drilling drills oil, gas, water, geothermal, and environmental wells throughout the southwestern U.S. The...

349

Oil and Gas Well Drilling | Open Energy Information  

Open Energy Info (EERE)

Not Provided Check for DOI availability: http:crossref.org Online Internet link for Oil and Gas Well Drilling Citation Jeff Tester. 2011. Oil and Gas Well Drilling. NA. NA....

350

E-Print Network 3.0 - absorber techniques developed Sample Search...  

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

ABSTRACT We have developed a family of 157 nm resists that utilize ... Source: French, Roger H. - Department of Materials Science and Engineering, University of...

351

Blind shaft drilling: The state of the art  

SciTech Connect

This report discusses the ``Art`` of blind shaft drilling which has been in a continual state of evolution at the Nevada Test Site (NTS) since the start of underground testing in 1957. Emplacement holes for nuclear devices are still being drilled by the rotary drilling process, but almost all the hardware and systems have undergone many changes during the intervening years. Blind shaft drilling and tunnel construction technologies received increased emphasis with the signing of the LTBT in 1963.

Rowe, P.A.

1993-04-20T23:59:59.000Z

352

An estimation of the penetration rate of rotary drills using the Specific Rock Mass Drillability index  

Science Journals Connector (OSTI)

The main purpose of the present study was to provide a practical, convenient drillability prediction model based on rock mass characteristics, geological sampling from blast holes, and drill operational factors. Empirical equations that predict drill penetration rate have been developed using statistical analyses of data from the Sarcheshmeh Copper Mine. Seven parameters of the rock or rock mass, including uniaxial compressive strength (UCS) of the rock, Schmidt hammer hardness value, quartz content, fragment size (d80), alteration, and joint dip, are included in the model along with two operational parameters of the rotary drill, bit rotational speed and thrust. These parameters were used to predict values of the newly developed Specific Rock Mass Drillability (SRMD) index. Comparing measured SRMD values to those predicted by the multi-parameter linear, or nonlinear, regression models showed good agreement. The correlation coefficients were 0.82 and 0.81, respectively.

Alireza Cheniany; Khoshrou Seyed Hasan; Kourosh Shahriar; Jafar Khademi Hamidi

2012-01-01T23:59:59.000Z

353

OCEAN DRILLING PROGRAM LEG 178 PRELIMINARY REPORT  

E-Print Network (OSTI)

A I M E R This publication was prepared by the Ocean Drilling Program, Texas A&M University, USA, Internet: cowanea@appstate.edu) James Daniels, Sedimentologist (School of Earth Sciences, California 94025, USA, Internet: carlota@octopus.wr.usgs.gov) Andrew J. Evans, Physical Properties Specialist

354

Drill pipe management extends drillstring life  

SciTech Connect

Better handling procedures and frequent drill pipe inspections prolong the life of a drillstring. Crews taught to make quick visual inspections during rig moves and tripping can spot problem pipe early, thus preventing downtime or extensive repairs. Because of escalating costs of drillstring repair and replacement, Global Marine Drilling Co. organized a task force in March 1989 to define problem areas and establish new handling and maintenance procedures. The task force estimated that one 20,000-ft drillstring costs abut $600,000 and has a 7-year life span. Assuming the average rig life is 21 years, each rig will wear out three strings, totaling $1.8 million. The addition of $30,000/year for full rack inspections, repairs and downhole loss brings the total to approximately $2.4 million/rig over the 21 years. A contractor with a fleet of 25 rigs could expend $60 million on drill pipe-the construction cost of a well-equipped, 300-ft jack up rig. The task force reported on in this paper identifies four basic caused of drill pipe failures: Tool joint and tube OD wear, Internal corrosion, Fatigue cracking in the slip and internal upset areas, Physical damage to the tool joint threads and shoulders, and the tube.

Shepard, J.S. (Global Marine Drilling Co., Houston, TX (US))

1991-10-28T23:59:59.000Z

355

OCEAN DRILLING PROGRAM LEG 162 PRELIMINARY REPORT  

E-Print Network (OSTI)

Jansen Co-Chief Scientist, Leg 162 Department of Geology, Section B University of Bergen Allegaten 41 N Drilling Program: Eystein Jansen, Co-Chief Scientist (Department of Geology, University of Bergen, Allegaten 41, N-5007 Bergen, Norway; E-mail: eystein.jansen@geol.uib.no) Maureen Raymo, Co-Chief Scientist

356

Method of drilling and casing a well  

SciTech Connect

A well drilling rig having a rotary table for driving a drill string rotatively and having jacking mechanism for lowering casing into the well after drilling, with the jacking mechanism including fluid pressure actuated piston and cylinder means which may be left in the rig during drilling and which are positioned low enough in the rig to avoid interference with operation of the rotary table. The jacking mechanism also includes a structure which is adapted to be connected to the piston and cylinder means when the casing or other well pipe is to be lowered and which is actuable upwardly and downwardly and carries one of two pipe gripping units for progressively jacking the pipe downwardly by vertical reciprocation of that structure. The reciprocating structure may take the form of a beam extending between two pistons and actuable thereby, with a second beam being connected to cylinders within which the pistons are contained and being utilized to support the second gripping element. In one form of the invention, the rotary table when in use is supported by this second beam.

Boyadjieff, G.I.; Campbell, A.B.

1983-12-20T23:59:59.000Z

357

OCEAN DRILLING PROGRAM LEG 160 PRELIMINARY REPORT  

E-Print Network (OSTI)

of this report can be found on the ODP Publications Home Page on the World Wide Web at http Consortium for the Ocean Drilling Program (Belgium, Denmark, Finland, Greece, Iceland, Italy, The Netherlands, Budapestlaan 4, 3584 CD Utrecht, The Netherlands; E-mail: gdelange@earth.ruu.nl) Enrico Di Stefano (De

358

Impedance-matched drilling telemetry system  

DOE Patents (OSTI)

A downhole telemetry system that uses inductance or capacitance as a mode through which signal is communicated across joints between assembled lengths of pipe wherein efficiency of signal propagation through a drill string, for example, over multiple successive pipe segments is enhanced through matching impedances associated with the various telemetry system components.

Normann, Randy A. (Edgewood, NM); Mansure, Arthur J. (Albuquerque, NM)

2008-04-22T23:59:59.000Z

359

Surface control bent sub for directional drilling of petroleum wells  

DOE Patents (OSTI)

Directional drilling apparatus for incorporation in a drill string, wherein a lower apparatus section is angularly deviated from vertical by cam action and wherein rotational displacement of the angularly deviated apparatus section is overcome by additional cam action, the apparatus being operated by successive increases and decreases of internal drill string pressure.

Russell, Larry R. (6025 Edgemoor, Suite C, Houston, TX 77081)

1986-01-01T23:59:59.000Z

360

KNOWLEDGE-BASED DECISION SUPPORT IN OIL WELL DRILLING  

E-Print Network (OSTI)

KNOWLEDGE-BASED DECISION SUPPORT IN OIL WELL DRILLING Combining general and case-specific knowledge of Computer and Information Science. agnar.aamodt@idi.ntnu.no Abstract: Oil well drilling is a complex process. This is followed, in section 3, by an oil well drilling scenario and an example from a problem solving session

Aamodt, Agnar

Note: This page contains sample records for the topic "drilling techniques development" 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

Applications of CBR in oil well drilling "A general overview"  

E-Print Network (OSTI)

Applications of CBR in oil well drilling "A general overview" Samad Valipour Shokouhi1,3 , Agnar successfully. Keywords: Case-based reasoning, oil well drilling 1 Introduction Case-based reasoning (CBR provide to the oil and gas drilling industry. The number of publications on the application of CBR

Aamodt, Agnar

362

Integrated Ocean Drilling Program U.S. Implementing Organization  

E-Print Network (OSTI)

successes of the Deep Sea Drilling Project (DSDP) and the Ocean Drilling Program (ODP), programs the shoreline in shallow- water areas and in climatically sensitive or ice-covered regions. Three implementing the riserless drilling vessel JOIDES Resolution, Japan's Center for Deep Earth Exploration (CDEX) for the riser

363

RESEARCH PAPER Compaction bands induced by borehole drilling  

E-Print Network (OSTI)

: boreholes are often drilled deep into weak porous sandstone formations for the purpose of extracting oil Introduction Boreholes drilled into the Earth's crust for facilitating the extraction of water, oil, naturalRESEARCH PAPER Compaction bands induced by borehole drilling R. Katsman ? E. Aharonov ? B. C

Einat, Aharonov

364

Los Alamos Drills to Record-breaking Depths  

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

LOS ALAMOS, N.M. The EM-supported Environmental Programs at Los Alamos National Laboratory is pushing the limits of drilling technology with the use of a sonic drill rig to drill coreholes more than 1,100 feet deep in support of a chromium remediation project.

365

Liability issues surrounding oil drilling mud sumps  

SciTech Connect

This presentation examines liability issues surrounding oil drilling mud sumps and discusses them in relation to two recent cases that arose in Ventura County, California. Following a brief history of regulatory interest in oil drilling mud and its common hazardous substances, various cause of action arising from oil drilling mud deposits are enumerated, followed by defenses to these causes of action. Section 8002 (m) of the Resource Conservation and Recovery Act is mentioned, as are constituents of oil and gas waste not inherent in petroleum and therefore not exempt from regulation under the petroleum exclusion in the Comprehensive Environmental Response, Compensation and Recovery Act. Key legal words such as hazardous substance, release, public and private nuisance, trespass, responsible parties, joint and several liability, negligence, and strict liability are explained. The effects on liability of knowledge of the deposits, duty to restore land to its original condition, consent to the deposit of oil drilling mud, and noncompliance and compliance with permit conditions are analyzed. The state-of-the-art defense and research to establish this defense are mentioned. The newly created cause of action for fear of increased risk of cancer is discussed. Issues on transfer of property where oil drilling mud has been deposited are explored, such as knowledge of prior owners being imputed to later owners, claims of fraudulent concealment, and as is' clauses. The effects on the oil and gas industry of the California Court of Appeals for the Second District rulings in Dolan v. Humacid-MacLeod and Stevens v. McQueen are speculated.

Dillon, J.J.

1994-04-01T23:59:59.000Z

366

Development of Modeling Techniques for A Generation IV Gas Fast Reactor  

E-Print Network (OSTI)

Worldwide, multiple countries are investing a great deal of time and energy towards developing a new class of technologically advanced nuclear reactors. These new reactors have come to be known as the Generation IV (Gen IV) class of nuclear...

Dercher, Andrew Steven

2012-10-19T23:59:59.000Z

367

Development of Multiple Probe Microdialysis Sampling Techniques for Site-Specific Monitoring in the Stomach  

E-Print Network (OSTI)

to compare different tissue types (i.e. diseased and healthy tissue in the same stomach). Initially, methods of probe implantation simultaneously in the lumen, mucosa, submucosa and the blood of a rat were developed. Histology confirmed that microdialysis...

Woo, Kristin Lindsey

2007-12-31T23:59:59.000Z

368

Development of glass vitrification at SRL as a waste treatment technique for nuclear weapon components  

SciTech Connect

This report discusses the development of vitrification for the waste treatment of nuclear weapons components at the Savannah River Site. Preliminary testing of surrogate nuclear weapon electronic waste shows that glass vitrification is a viable, robust treatment method.

Coleman, J.T.; Bickford, D.F.

1991-01-01T23:59:59.000Z

369

Bit cutter-on-rock tribometry: Analyzing friction and rate-of-penetration for deep well drilling substrates  

Science Journals Connector (OSTI)

Abstract In this paper, techniques for studying the tribology of rock cutting were developed using bit cutter-on-rock tribometry (B-CORT). Tribological testing was carried out on water-jet fabricated rock disks representative of those found during deep well drilling. The tribometer was also retrofitted with a variable radius cutter assembly, and a system for the capture of in situ rate-of-penetration (ROP). Results include in situ coefficient of friction (COF) and ROP for O1 tool steel cutters on Carthage Marble rock disks. Additionally, this work includes validation of the DOC measurement system with optical interferometry. The interdependence of interfacial cutting friction, ROP, and disk speed are discussed and qualitatively validated against existing studies.

Patrick S.M. Dougherty; Randyka Pudjoprawoto; C. Fred Higgs III

2014-01-01T23:59:59.000Z

370

NUMBER1,2005 Published by the Integrated Ocean Drilling Program with the International Continental Scientific Drilling Program  

E-Print Network (OSTI)

large volumes of borehole fluids, and initiate a cross-hole hydrogeologic experiment usingNUMBER1,2005 Published by the Integrated Ocean Drilling Program with the International Continental Scientific Drilling Program No.13,April2012 ScientificDrilling ISSN: 1816-8957 Exp. 327: Juan de Fuca Ridge

Fisher, Andrew

371

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

SciTech Connect

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

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

1982-03-31T23:59:59.000Z

372

Development and evaluation of on-line detection techniques for polar organics in ultrapure water  

SciTech Connect

An on-line monitor that can perform rapid, trace detection of polar organics such as acetone and isopropanol in ultrapure water (UPW) is necessary to efficiently recycle water in semiconductor manufacturing facilities. The detection of these analytes is problematic due to their high solubility in water, resulting in low partitioning into sensor coatings for direct water analysis or into the vapor phase for detection by vapor phase analyzers. After considering various options, we have evaluated two conventional laboratory techniques: gas chromatography and ion mobility spectroscopy. In addition, optimizations of sensor coating materials and sample preconditioning systems were performed with the goal of a low cost, chemical sensor system for this application. Results from these evaluations, including recommendations for meeting the needs of this application, are reported.

Frye, G.C.; Blair, D.S.; Schneider, T.W.; Mowry, C.D.; Colburn, C.W.; Donovan, R.P.

1996-03-01T23:59:59.000Z

373

Innovative approach for restoring coastal wetlands using treated drill cuttings  

SciTech Connect

The leading environmental problem facing coastal Louisiana regions is the loss of wetlands. Oil and gas exploration and production activities have contributed to wetland damage through erosion at numerous sites where canals have been cut through the marsh to access drilling sites. An independent oil and gas producer, working with Southeastern Louisiana University and two oil field service companies, developed a process to stabilize drill cuttings so that they could be used as a substrate to grow wetlands vegetation. The U.S. Department of Energy (DOE) funded a project under which the process would be validated through laboratory studies and field demonstrations. The laboratory studies demonstrated that treated drill cuttings support the growth of wetlands vegetation. However, neither the Army Corps of Engineers (COE) nor the U.S. Environmental Protection Agency (EPA) would grant regulatory approval for afield trial of the process. Argonne National Laboratory was asked to join the project team to try to find alternative mechanisms for gaining regulatory approval. Argonne worked with EPA's Office of Reinvention and learned that EPA's Project XL would be the only regulatory program under which the proposed field trial could be done. One of the main criteria for an acceptable Project XL proposal is to have a formal project sponsor assume the responsibility and liability for the project. Because the proposed project involved access to private land areas, the team felt that an oil and gas company with coastal Louisiana land holdings would need to serve as sponsor. Despite extensive communication with oil and gas companies and industry associations, the project team was unable to find any organization willing to serve as sponsor. In September 1999, the Project XL proposal was withdrawn and the project was canceled.

Veil, J. A.; Hocking, E. K.

1999-11-02T23:59:59.000Z

374

Drilling Optimization Utilizing Surface Instrumentaton for Downhole Event Recognition  

SciTech Connect

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

John H. Cohen; Greg Deskins

2006-02-01T23:59:59.000Z

375

Overview of energy-conserving development planning and design techniques based on five case studies  

SciTech Connect

Findings and recommendations are presented of a review of five case studies of ways to conserve energy through development planning and site design in communities. Two approaches were used. In the first approach, a conventional, pre-existing plan was analyzed to determine potential energy use. Once energy-conservation options were identified and evaluated, the conventional plan was modified by employing those options. This approach was used in The Woodlands, Burke Center, and Radisson studies. In the second approach, energy-conservation options are independently identified and evaluated. Those options that passed specific criteria screening were then utilized in developing one or more totally new plans based on energy objectives. This approach was used in Greenbrier and Shenandoah. Radisson is a new town on the outskirts of Syracuse, New York. Greenbrier is a 3000 acre planned community adjacent to Norfolk and Virginia Beach. Shenandoah is a proposed new town in the Atlanta urbanized area. The Woodlands is a new community under development north of Houston. Burke Center is a residential planned unit development in Fairfax County, Virgnia. (MCW)

Not Available

1980-06-01T23:59:59.000Z

376

An Investigation of Extratropical Cyclone Development Using a Scale-Separation Technique  

Science Journals Connector (OSTI)

The explosive development phase of an extratropical cyclone (ETC) is examined using output generated by the fifth-generation PSUNCAR Mesoscale Model (MM5). A full-physics run of MM5 with 60-km grid spacing was used to simulate the intensive ...

Kenneth E. Parsons; Phillip J. Smith

2004-04-01T23:59:59.000Z

377

Recent drilling activities at the earth power resources Tuscarora geothermal power project's hot sulphur springs lease area.  

SciTech Connect

Earth Power Resources, Inc. recently completed a combined rotary/core hole to a depth of 3,813 feet at it's Hot Sulphur Springs Tuscarora Geothermal Power Project Lease Area located 70-miles north of Elko, Nevada. Previous geothermal exploration data were combined with geologic mapping and newly acquired seismic-reflection data to identify a northerly tending horst-graben structure approximately 2,000 feet wide by at least 6,000 feet long with up to 1,700 feet of vertical offset. The well (HSS-2) was successfully drilled through a shallow thick sequence of altered Tertiary Volcanic where previous exploration wells had severe hole-caving problems. The ''tight-hole'' drilling problems were reduced using drilling fluids consisting of Polymer-based mud mixed with 2% Potassium Chloride (KCl) to reduce Smectite-type clay swelling problems. Core from the 330 F fractured geothermal reservoir system at depths of 2,950 feet indicated 30% Smectite type clays existed in a fault-gouge zone where total loss of circulation occurred during coring. Smectite-type clays are not typically expected at temperatures above 300 F. The fracture zone at 2,950 feet exhibited a skin-damage during injection testing suggesting that the drilling fluids may have caused clay swelling and subsequent geothermal reservoir formation damage. The recent well drilling experiences indicate that drilling problems in the shallow clays at Hot Sulphur Springs can be reduced. In addition, average penetration rates through the caprock system can be on the order of 25 to 35 feet per hour. This information has greatly reduced the original estimated well costs that were based on previous exploration drilling efforts. Successful production formation drilling will depend on finding drilling fluids that will not cause formation damage in the Smectite-rich fractured geothermal reservoir system. Information obtained at Hot Sulphur Springs may apply to other geothermal systems developed in volcanic settings.

Goranson, Colin

2005-03-01T23:59:59.000Z

378

NEPA COMPLIANCE SURVEY Project Information Project Title: Liner Drilling Date:  

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

Liner Drilling Date: Liner Drilling Date: 4-5-10 DOE Code: 71092 Cont ractor Code: 8067-766 Project Lead: Frank Ingham Project Overview Nothing out of the ordinary for drilling an existing location 1. What are the environmental impacts? NE SW Sec 21 , T39N, R78W (45-3-X-21 well) 2. What is the legal location? 3. What is the duration of the project? Approximately a week 4 . What major equipment will be used if any (work over rig, drilling rig, Drilling Rig etc.)? Will Drill out of 9 5/8 caslng with liner drillng assembly. After drilling approximately 750 to 1000 ft, will test liner hanging assembly set and retrieve multiple times. The table b elow is to be completed by the Project Lead and reviewed by the Environmental Specialis t and the DOE NEPA Compliance Officer. NOTE: If Change of Scope occurs, Project Lead must submit a new NEPA Compliance Survey a

379

Air drilling operations improved by percussion-bit/hammer-tool tandem  

SciTech Connect

Contractors and operators air drill whenever possible to improve rate of penetration (ROP). This is done with pneumatic hammer tools (HT's) and various bit types used with standard rotary air rigs. The recent application of a ''flat-bottomed'' percussion bit (FPB) combined with a custom-designed HT originally developed for mining operations has significantly improved air drilling operations in the Arkoma basin. The improvements include a large increase in ROP, improved hole geometry, reduced drillstring stresses, and a substantial reduction in cost per foot. This paper describes (1) a discussion of the engineering design and operation of the FPB/HT tandem, (2) applications and limitations of the tools, (3) guidelines for optimization of performance, and (4) documentation of field performance on Arkoma basin wells to demonstrate the improvements in air drilling operations.

Whiteley, M.C.; England, W.P.

1986-10-01T23:59:59.000Z

380

Removal of Filter Cake Generated by Manganese Tetraoxide Water-based Drilling Fluids  

E-Print Network (OSTI)

Three effective solutions to dissolve the filter cake created by water-based drilling fluids weighted with Mn3O4 particles were developed. Hydrochloric acid at concentration lower than 5 wt% can dissolve most of Mn3O4-based filter cake. Dissolving...

Al Mojil, Abdullah Mohammed A.

2011-10-21T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

Temporary Bridging Agents for Use in Drilling and Completions of EGS  

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

DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Develop materials or systems that bridge to seal or divert flow from fractures existing while drilling EGS wells or in injection formation and that eventually decompose thereby leaving the fractures unsealed and undamaged.

382

The Development and Application of Reactive Transport Modeling Techniques to Study Radionuclide Migration at Yucca Mountain, NV  

SciTech Connect

Yucca Mountain, Nevada has been chosen as a possible site for the first high level radioactive waste repository in the United States. As part of the site investigation studies, we need to make scientifically rigorous estimations of radionuclide migration in the event of a repository breach. Performance assessment models used to make these estimations are computationally intensive. We have developed two reactive transport modeling techniques to simulate radionuclide transport at Yucca Mountain: (1) the selective coupling approach applied to the convection-dispersion-reaction (CDR) model and (2) a reactive stream tube approach (RST). These models were designed to capture the important processes that influence radionuclide migration while being computationally efficient. The conventional method of modeling reactive transport models is to solve a coupled set of multi-dimensional partial differential equations for the relevant chemical components in the system. We have developed an iterative solution technique, denoted the selective coupling method, that represents a versatile alternative to traditional uncoupled iterative techniques and the filly coupled global implicit method. We show that selective coupling results in computational and memory savings relative to these approaches. We develop RST as an alternative to the CDR method for solving large two- or three-dimensional reactive transport simulations for cases in which one is interested in predicting the flux across a specific control plane. In the RST method, the multidimensional problem is reduced to a series of one-dimensional transport simulations along streamlines. The key assumption with RST is that mixing at the control plane approximates the transverse dispersion between streamlines. We compare the CDR and RST approaches for several scenarios that are relevant to the Yucca Mountain Project. For example, we apply the CDR and RST approaches to model an ongoing field experiment called the Unsaturated Zone Transport Test.

Viswanathan, Hari Selvi

1999-09-01T23:59:59.000Z

383

Development of a Navigator and Imaging Techniques for the Cryogenic Dark Matter Search Detectors  

SciTech Connect

This project contributes to the detection of flaws in the germanium detectors for the Cryogenic Dark Matter Search (CDMS) experiment. Specifically, after imaging the detector surface with a precise imaging and measuring device, they developed software to stitch the resulting images together, applying any necessary rotations, offsets, and averaging, to produce a smooth image of the whole detector that can be used to detect flaws on the surface of the detector. These images were also tiled appropriately for the Google Maps API to use as a navigation tool, allowing viewers to smoothly zoom and pan across the detector surface. Automated defect identification can now be implemented, increasing the scalability of the germanium detector fabrication.

Wilen, Chris; /Carleton Coll. /KIPAC, Menlo Park

2011-06-22T23:59:59.000Z

384

Footage Drilled for Crude Oil and Natural Gas Wells  

Gasoline and Diesel Fuel Update (EIA)

Footage Drilled for Crude Oil and Natural Gas Wells Footage Drilled for Crude Oil and Natural Gas Wells (Thousand Feet) Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes 2003 2004 2005 2006 2007 2008 View History Exploratory and Development Wells 176,867 203,997 240,969 285,398 308,210 331,740 1949-2008 Crude Oil 38,495 42,032 51,511 63,649 66,527 88,382 1949-2008 Natural Gas 115,833 138,503 164,353 193,595 212,753 212,079 1949-2008 Dry Holes 22,539 23,462 25,104 28,154 28,931 31,280 1949-2008 Exploratory Wells 17,785 22,382 25,955 29,630 36,534 35,585 1949-2008 Crude Oil 2,453 3,141 4,262 4,998 6,271 7,389 1949-2008 Natural Gas 6,569 9,998 12,347 14,945 19,982 17,066 1949-2008 Dry Holes

385

Mathematical modeling of thixotropic drilling mud and crude oil flow in wells and pipelinesA review  

Science Journals Connector (OSTI)

Many drilling muds and crude oils are known to be thixotropic. Under a wide range of pressures, temperatures and flow regimes, they display unusual complex flow properties when flowing through wells (crude oils and drilling muds) and during storage and pipeline transportation (crude oils). Understanding and modeling the deviation from Newtonian behavior of drilling muds and crude oils are essential in accurately and optimally designing the flow systems associated with these fluids. Despite an impressive amount of experimental and rheological modeling studies concerning the non-Newtonian drilling mud and crude oil behavior, mathematical modeling studies taking into account their thixotropic properties are rare. In addition, there was no literature review of the knowledge gained to date. Thus, a review paper on studies addressing the mathematical modeling of thixotropic drilling mud and crude oil flow in wells and pipelines will pinpoint the challenges and limitations encountered in such studies. This will hopefully trigger further development and new research topics. This review paper focuses mainly on mathematical modeling studies concerning the well and pipeline flow of thixotropic drilling muds and crude oils. After describing how thixotropy is understood today inside and outside of the petroleum industry community, several mathematical models available in the literature are examined. Finally, challenges, limitations, and potential areas for the development of these models are presented.

S. Livescu

2012-01-01T23:59:59.000Z

386

Music to knowledge: A visual programming environment for the development and evaluation of music information retrieval techniques  

Science Journals Connector (OSTI)

The objective of the International Music Information Retrieval Systems Evaluation Laboratory (IMIRSEL) project is the creation of a large secure corpus of audio and symbolic music data accessible to the music information retrieval (MIR) community for the testing and evaluation of various MIR techniques. As part of the IMIRSEL project a cross?platform JAVA based visual programming environment called Music to Knowledge (M2K) is being developed for a variety of music information retrieval related tasks. The primary objective of M2K is to supply the MIR community with a toolset that provides the ability to rapidly prototype algorithms as well as foster the sharing of techniques within the MIR community through the use of a standardized set of tools. Due to the relatively large size of audio data and the computational costs associated with some digital signal processing and machine learning techniques M2K is also designed to support distributed computing across computing clusters. In addition facilities to allow the integration of non?JAVA based (e.g. C/C++ MATLAB etc.) algorithms and programs are provided within M2K. [Work supported by the Andrew W. Mellon Foundation and NSF Grants No. IIS?0340597 and No. IIS?0327371.

2005-01-01T23:59:59.000Z

387

Review and discussion of the development of synthetic aperture focusing technique for ultrasonic testing (SAFT-UT)  

SciTech Connect

The development and capabilities of synthetic aperture focusing techniques for ultrasonic testing (SAFT-UT) are presented. The purpose of SAFT-UT is to produce high-resolution images of the interior of opaque objects. The goal of this work is to develop and implement methods which can be used to detect and to quantify the extent of defects and cracks in critical components of nuclear reactors (pressure vessels, primary piping systems, and nozzles). This report places particular emphasis upon the practical experimental results that have been obtained using SAFT-UT as well as the theoretical background that underlies synthetic aperture focusing. A discussion regarding high-speed and real-time implementations of two- and three-dimensional synthetic aperture focusing is also presented.

Busse, L.J.; Collins, H.D.; Doctor, S.R.

1984-03-01T23:59:59.000Z

388

Development of nondestructive evaluation techniques for DAM inspection. Progress report, January 1995 through August 1997  

SciTech Connect

The Lawrence Livermore National Laboratory has concluded a two and a half year study on the development of an ultrasonic inspection system to inspect post stressed steel tendons on dams and flood gates. The inspection systems were part of a program for the California Department of Water Resources. The effort included the identification of the location and amount of corrosion damage to the tendons, identification of the cause of corrosion, and the technology for inhibiting corrosion. Several NDE methods for inspecting and quantifying damage to steel reinforced concrete water pipes were investigated and presented to the DWR for their consideration. The additional methods included Ground Penetrating RADAR, Electro- Potential Measurements, Infrared Technology, Pipe Inspection Crawlers (designed to travel inside pipelines and simultaneously report on the pipe condition as viewed by ultrasonic methods and video cameras from within the pipeline.) Reference to consultants hired by LLNL for similar on-site corrosion inspections were given to the DWR. The LLNL research into industries that have products to prevent corrosion resulted in the identification of an Innsbruck, Austria, company. This company claims to have products to permanently protect post- or pre-stressed tendons. The caveat is that the tendon protection system must be installed when the tendons are installed because no retrofit is available. Corrosion mitigation on the steel reinforcements surrounding the concrete was addressed through active and passive cathodic protection schemes. The combination of corrosion and erosion were addressed during consideration for the inspection of water-pump impeller-blades that are used in the three stage, million horsepower, pumping stations at Edmunston.

Brown, A. E.; Thomas, G.H.

1997-09-04T23:59:59.000Z

389

Contracts for field projects and supporting research on enhanced oil recovery and improved drilling technology. Progress review No. 22, quarter ending March 31, 1980  

SciTech Connect

This report contains statements of objectives and summaries of technical progress on all DOE contracts pertaining to enhanced oil recovery and improved drilling techniques. Subject categories include chemical flooding; carbon dioxide injection; thermal recovery of heavy oil; resource assessment; improved drilling technology; residual oil; environmental; petroleum technology; and microbial enhanced oil recovery. An index containing the names of the companies and institutions involved is included. Current publications resulting from the DOE contractual program are listed. (DMC)

Linville, B. (ed.)

1980-07-01T23:59:59.000Z

390

NETL: News Release - New Projects to Investigate Smart Drilling Options  

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

February 20, 2004 February 20, 2004 New Projects to Investigate "Smart Drilling" Options Promise Lower Cost, More Reliable Gas Drilling Two additional projects have been selected under a Department of Energy solicitation designed to advance performance when drilling for natural gas. The projects are a key component of the Department's gas exploration and production research program, and support the President's National Energy Policy, which calls for boosting domestic production of natural gas to ensure an adequate future supply at reasonable prices. With shallow and conventional natural gas resources in the United States being depleted, drillers must reach for gas miles below the earth's surface, where temperatures run up to 450 EF and pressures are hundreds of times greater than atmospheric pressure. "Smart drilling" options can increase productivity, improve drilling safety, and lower costs when drilling for these hard-to-reach deep gas supplies.

391

Noise removal from measurements while drilling an oil well  

Science Journals Connector (OSTI)

Systems to acquire borehole data during the drilling of oil and gas wells make use of measurement while drilling (MWD). One feature of this system is that it is able to do real?time measuring from a borehole; therefore there has been a lot of MWD use on drilling sites in recent years. There are a few types of MWD. Mud pulse?type MWD which uses a drilling circuit fluid is superior to the rest because of its reliability accuracy of data and less disturbance of the drilling schedule. The drilling circuit fluid is raised to a high pressure by a mud pump; borehole data which are recorded by the surface measuring system are contaminated by the pumping noise. Therefore it is necessary to remove the pumping noise to get objective data. This report describes the pumping noise removal system and the method used for the telemetry system from 2000 m depth.

Kazuho Hosono; Haruki Moriyama

1996-01-01T23:59:59.000Z

392

Oregon: a guide to geothermal energy development  

SciTech Connect

A brief overview is given of the geological characteristics of each region of the state as they relate to potential geothermal development. Those exploration methods which can lead to the siting of a deep exploration well are described. Requirements and techniques needed for drilling deeper higher temperature exploration and production wells are presented. Electrical generation, direct utilization, and indirect utilization are reviewed. Economic factors of direct use projects are presented. A general guide to the regulatory framework affecting geothermal energy development is provided. The general steps necessary to gain access to explore, develop, distribute, and use geothermal resources are outlined. (MHR)

Justus, D.; Basescu, N.; Bloomquist, R.G.; Higbee, C.; Simpson, S.

1980-06-01T23:59:59.000Z

393

Washington: a guide to geothermal energy development  

SciTech Connect

A brief overview is given of the geological characteristics of each region of the state as they relate to potential geothermal development. Those exploration methods which can lead to the siting of a deep exploration well are described. Requirements and techniques needed for drilling deeper higher temperature exploration and production wells are presented. Electrical generation, direct utilization, and indirect utilization are reviewed. Economic factors of direct use projects are presented. A general guide to the regulatory framework affecting geothermal energy development is provided. The general steps necessary to gain access to explore, develop, distribute, and use geothermal resources are outlined. (MHR)

Bloomquist, R.G.; Basescu, N.; Higbee, C.; Justus, D.; Simpson, S.

1980-01-01T23:59:59.000Z

394

Drop in drilling hurts oil-field chemicals market  

Science Journals Connector (OSTI)

Drop in drilling hurts oil-field chemicals market ... But events in the past few years have proven that notion faulty, and oil-field chemicals have fallen on hard times as drilling activity declines. ... The consumption of oil-field chemicals is directly related to drilling activity, and two new studies point out how far that market has declined and where opportunities still exist. ...

1985-11-18T23:59:59.000Z

395

Evaluation of potential kick scenarios in riserless drilling  

E-Print Network (OSTI)

when drilling conventionally is somewhat different from the procedures when drilling riserless. The two most common methods of kick killing utilized in conventional drilling, are the "Driller's Method" and the "Wait and Weight Method" (also referred... to as the "Engineers Method" )' . The basic procedure utilized by the Driller's Method is to shut in the well, measure stabilized shut-in drillpipe pressure (SIDPP), shut-in casing pressure (SICP), and pit gain. Circulate the kick up the annulus and out...

Seland, Stig

1999-01-01T23:59:59.000Z

396

Stress analysis of a hybrid composite drilling riser  

E-Print Network (OSTI)

. Validation and Verification of the Model. . . 33 35 38 RESULTS AND DISCUSSION . . 43 SUMMARY 49 Current Analysis . Future Work 49 50 REFERENCES . 52 APPENDIX A TABLES. 56 APPENDIX B FIGURES . . 68 APPENDIX C TENSOR TRANSFORMATIONS. . 107 VITA... serves as a conduit between the drilling platform and the subsea well- head. It provides a protected path for the tools being inserted into the well, and for the drilling mud that circulates from the drilling platform to the wefl bottom. The marine...

Sundstrom, Keith Andrew

1996-01-01T23:59:59.000Z

397

U. S. Energy Information Administration | Drilling Productivity Report  

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

December 2013 December 2013 Explanatory notes Drilling Productivity Report The Drilling Productivity Report uses recent data on the total number of drilling rigs in operation along with estimates of drilling productivity and estimated changes in production from existing oil and natural gas wells to provide estimated changes in oil and natural gas production for six key fields. EIA's approach does not distinguish between oil-directed rigs and gas-directed rigs because once a well is completed it may produce both oil and gas; more than half of the wells do that. Monthly additions from one average rig Monthly additions from one average rig represent EIA's estimate of an average rig's

398

Semantic technology in the oil and gas drilling domain.  

E-Print Network (OSTI)

??Data integration and knowledge representation in the oil and gas drilling domain are two challenges much work is focused upon. They are important real-world challenges (more)

Over, Lars

2010-01-01T23:59:59.000Z

399

A Telerobotic Drilling Control System with Haptic Feedback.  

E-Print Network (OSTI)

??Drilling a borehole is a common method for extracting oil, gas, and natural resources from beneath the surface of the earth. The main topic of (more)

Shah, Faraz

2012-01-01T23:59:59.000Z

400

Evaluation of Emerging Technology for Geothermal Drilling and Logging Applications  

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

Evaluation of Emerging Technology for Geothermal Drilling and Logging Applications presentation at the April 2013 peer review meeting held in Denver, Colorado.

Note: This page contains sample records for the topic "drilling techniques development" 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

Chesapeake Bay, Drilling for Oil or Gas Prohibited (Virginia)  

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

Drilling for oil or gas in the waters or within 500 hundred feet from the shoreline of the Chesapeake Bay or any of its tributaries is prohibited.

402

Recent Drilling Activities At The Earth Power Resources Tuscarora...  

Open Energy Info (EERE)

Drilling Activities At The Earth Power Resources Tuscarora Geothermal Power Project'S Hot Sulphur Springs Lease Area Jump to: navigation, search OpenEI Reference LibraryAdd to...

403

Costs of Crude Oil and Natural Gas Wells Drilled  

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

Costs of Crude Oil and Natural Gas Wells Drilled Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes 2002 2003...

404

Idaho Well Construction and Drilling Forms Webpage | Open Energy...  

Open Energy Info (EERE)

Forms Webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Idaho Well Construction and Drilling Forms Webpage Author Idaho Department of...

405

Hydrates represent gas source, drilling hazard  

SciTech Connect

Gas hydrates look like ordinary ice. However, if a piece of such ice is put into warm water its behavior will be different from the ordinary melting of normal ice. In contrast, gas hydrates cause bubbles in the warm water, which indicates the high content of gas in the hydrate crystals. The presence of four components is required: gas itself, water, high pressure, and low temperature. The paper discusses how hydrates form, hydrates stability, South Caspian hydrates, and hydrates hazards for people, ships, pipelines, and drilling platforms.

Bagirov, E. [Azerbaijan Academy of Sciences, Baku (Azerbaijan); Lerche, I. [Univ. of South Carolina, Columbia, SC (United States)

1997-12-01T23:59:59.000Z

406

Modeling Drilled Shafts in MSE Block Walls  

E-Print Network (OSTI)

ACKNOWLEDGEMENTS xii ABSTRACT xiii 1 INTRODUCTION 1 2 LITERATURE REVIEW 3 2.1 Physical Testing 3 2.1.1 MSE Wall Design (FHWA) 3 2.1.2 Design of Laterally Loaded Shafts 6 2.1.3 Design of Drilled Shafts Supporting Sound Walls 7 2.1.4 Topics Related to MSE... Wall Interaction with Bridges 8 2.1.5 Lateral Loading of Facing and Retained Soil 9 2.1.6 Physical Test Results 11 2.1.6.1 Construction and Instrumentation of Test Wall 12 2.1.6.2 Physical Testing and Results 17 2.2 Numerical Approaches 22 2...

Pierson, Matthew Charles

2010-09-01T23:59:59.000Z

407

Sound Coiled-Tubing Drilling Practices  

SciTech Connect

This Coiled-Tubing Drilling (CTD) Sound Practices Manual provides tools needed by CTD engineers and supervisors to plan, design and perform safe, successful CTD operations. As emphasized throughout, both careful planning and attention to detail are mandatory for success. A bibliography of many useful CTD references is presented in Chapter 6. This manual is organized according to three processes: 1) Pre-Job Planning Process, 2) Operations Execution Process, and 3) Post-Job Review Process. Each is discussed in a logical and sequential format.

Williams, Thomas; Deskins, Greg (Maurer Technology Inc.); Ward, Stephen L. (Advantage Energy Services Ltd); Hightower, Mel

2001-09-30T23:59:59.000Z

408

Performance-Oriented Drilling Fluids Design System with a Neural Network Approach  

Science Journals Connector (OSTI)

Drilling fluids play a key role in the minimization of well bore problems when drilling oil or gas wells, usually the design of drilling fluids is depended on many experiments with experience. Rule-based and case-based reasoning drilling fluid system ... Keywords: artificial neural network, drilling fluid, performance-oriented

Yongbin Zhang; Yeli Li; Peng Cao

2009-11-01T23:59:59.000Z

409

Evaluation of commercially available techniques and development of simplified methods for measuring grille airflows in HVAC systems  

SciTech Connect

In this report, we discuss the accuracy of flow hoods for residential applications, based on laboratory tests and field studies. The results indicate that commercially available hoods are often inadequate to measure flows in residential systems, and that there can be a wide range of performance between different flow hoods. The errors are due to poor calibrations, sensitivity of existing hoods to grille flow non-uniformities, and flow changes from added flow resistance. We also evaluated several simple techniques for measuring register airflows that could be adopted by the HVAC industry and homeowners as simple diagnostics that are often as accurate as commercially available devices. Our test results also show that current calibration procedures for flow hoods do not account for field application problems. As a result, organizations such as ASHRAE or ASTM need to develop a new standard for flow hood calibration, along with a new measurement standard to address field use of flow hoods.

Walker, Iain S.; Wray, Craig P.; Guillot, Cyril; Masson, S.

2003-08-01T23:59:59.000Z

410

Neutron and X-ray Scattering Techniques have proved so successful in condensed matter studies that a wide variety of sample environments have been developed in consquence. Many  

E-Print Network (OSTI)

Foreword Neutron and X-ray Scattering Techniques have proved so successful in condensed matter whose function is to develop and optimise the techniques appropriate to neutron scattering. Since other neutron and X-ray research centres have similar technical support groups, it was felt timely to unité

Boyer, Edmond

411

Crump Geyser: High Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling  

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

DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Discover new 260F and 300F geothermal reservoirs in Oregon. To demonstrate the application of high precision geophysics for well targeting. Demonstrate a combined testing approach to Flowing Differential Self Potential (FDSP) and electrical tomography resistivity as a guide to exploration and development. Demonstrate utility and benefits of sump-less drilling for a low environmental impact. Create both short and long term employment through exploration, accelerated development timeline and operation.

412

Drilling Waste Management Technology Identification Module  

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

you are in this section Technology Identification you are in this section Technology Identification Home » Technology Identification Drilling Waste Management Technology Identification Module The Technology Identification Module is an interactive tool for identifying appropriate drilling waste management strategies for a given well location and circumstances. The Technology Identification Module follows the philosophy of a waste management hierarchy. Waste management options with the lowest environmental impacts are encouraged ahead of those with more significant environmental impacts. The Technology Identification Module helps identify waste management options, but users should also consider their own site-specific costs and waste volumes. How it Works Users will be asked to answer a series of questions about the location of the well site, physical features of the site that may allow or inhibit the use of various options, whether the regulatory agency with jurisdiction allows or prohibits particular options, and whether cost or the user's company policy would preclude any options. Nearly all questions are set up for only "yes" or "no" responses. Depending on how the initial questions are answered, users will face from 15 to 35 total questions. Some of these can be answered immediately, while others may require some additional investigation of other portions of this web site or external information. Suitable options will be identified as users complete the questions, and users will be able to print out a summary of suitable options when the process is completed.

413

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

414

Biodegradation of Fuel Oil Hydrocarbons in Soil Contaminated by Oily Wastes Produced During Onshore Drilling Operations  

Science Journals Connector (OSTI)

The petroleum industry generates high amount of oily wastes during drilling, storage and refining operations. Onshore drilling operations produce oil based wastes, typically 100150m-3 well. The drilling cuttings...

Qaude-Henri Chaneau; Jean-Louis Morel; Jean Oudot

1995-01-01T23:59:59.000Z

415

Multi-objective optimization of oil well drilling using elitist non-dominated sorting genetic algorithm  

Science Journals Connector (OSTI)

A multi-objective optimization of oil well drilling has been carried out using a binary ... functions were formulated and solved to fix optimal drilling variables. The important objectives are: (i) maximizing drilling

Chandan Guria; Kiran K. Goli; Akhilendra K. Pathak

2014-03-01T23:59:59.000Z

416

Learning by Drilling: Inter-Firm Learning and Relationship Persistence in the Texas Oilpatch  

E-Print Network (OSTI)

frequency data from oil and gas drilling. I find that thean examination of the oil and gas drilling industry. I findintegration. The oil and gas drilling industry is well-

KELLOGG, RYAN M

2007-01-01T23:59:59.000Z

417

The Importance of Rheology in the Determination of the Carrying Capacity of Oil-Drilling Fluids  

Science Journals Connector (OSTI)

The ability of a drilling fluid to convey drill cuttings from a well is not fully ... cuttings travel with a lower velocity than the drilling fluid and they can accumulate in the ... lead to degradation of the cu...

M. A. Lockyer; J. M. Davies; T. E. R. Jones

1980-01-01T23:59:59.000Z

418

Support for Offshore Oil and Gas Drilling among the California Public  

E-Print Network (OSTI)

005 "Support for Offshore Oil and Gas Drilling Among theSupport for Offshore Oil and Gas Drilling among theSupport for Offshore Oil and Gas Drilling among the

Smith, Eric R.A.N.

2003-01-01T23:59:59.000Z

419

Public Support for Oil and Gas Drilling in California's Forests and Parks  

E-Print Network (OSTI)

009 "Public Support for Oil and Gas Drilling in CaliforniasPublic Support for Oil and Gas Drilling in CaliforniasPublic Support for Oil and Gas Drilling in Californias

Smith, Eric R.A.N.; Carlisle, Juliet; Michaud, Kristy

2004-01-01T23:59:59.000Z

420

Deep-water drilling remains a risky business  

Science Journals Connector (OSTI)

... Two years after the blowout of the BP oil well drilled by the Deepwater Horizon rig in the Gulf of Mexico, the United States is largely failing to act on ... commission that produced the report Deep Water: The Gulf Oil Disaster and the Future of Offshore Drilling the other was Cherry Murray of Harvard University. The commission concluded that ...

Donald Boesch

2012-04-17T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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 microsoft white paper Drilling for new Business Value  

E-Print Network (OSTI)

a microsoft white paper Drilling for new Business Value How innovative oil and gas companies Technical Strategist, Oil & Gas and Mining, Microsoft Adil Soofi, Enterprise Architect, Microsoft Ernie Perez, Enterprise Architect, Microsoft #12;a microsoft white paper Drilling for new B usiness Value 2

Bernstein, Phil

422

Penetration rate prediction for percussive drilling via dry friction model  

E-Print Network (OSTI)

Penetration rate prediction for percussive drilling via dry friction model Anton M. Krivtsov a. Similarly, an increased weight on bit in downhole drilling does not improve the penetration rates when hard- tration rate is presented. The inherent nonlinearity of the discontinuous impact process is modelled

Krivtsov, Anton M.

423

US deep geothermal drilling for 1973-1980  

SciTech Connect

The number of deep geothermal wells drilled in 1973 through 1980 are analyzed. The rate of drilling was constant from 1973 through 1978, but appears to have increased starting in 1979. The increase has occurred mainly at The Geysers and at exploratory locations outside of California.

Gerstein, R.E.; Entingh, D.J.

1981-10-01T23:59:59.000Z

424

INTEGRATED OCEAN DRILLING PROGRAM U.S. IMPLEMENTING ORGANIZATION  

E-Print Network (OSTI)

and to monitor subseafloor environments. IODP builds upon the earlier successes of the Deep Sea Drilling Project in shallow-water areas and in climatically sensitive or ice-covered regions. Three implementing organizations the riserless drilling vessel JOIDES Resolution, Japan's Center for Deep Earth Exploration (CDEX) for the riser

425

Integrated Ocean Drilling Program U.S. Implementing Organization  

E-Print Network (OSTI)

in seafloor sediments and rocks. IODP builds upon the earlier successes of the Deep Sea Drilling Project (DSDP by Japan's Center for Deep Earth Exploration (CDEX), allows IODP to drill for months to a year or more Resolution or the Chikyu, such as locations near the shoreline in shallow-water areas and in climatically

426

Water's Journey Through the Shale Gas Drilling and  

E-Print Network (OSTI)

Water's Journey Through the Shale Gas Drilling and Production Processes in the Mid-Atlantic Region: Marcellus shale drilling in progress, Beaver Run Reservoir, Westmoreland County. Credit: Robert Donnan. Gas in the Marcellus shale natural gas industry in the Mid-Atlantic region. Using publicly available information, we

Lee, Dongwon

427

Theoretical simulation of the multipole seismoelectric logging while drilling  

Science Journals Connector (OSTI)

......wave can travel through the drilling collar from the transmitter...collar, which occupies a large portion of the borehole. It does not allow a large number of deep grooves to...stiffness and strength during drilling. On the steel collar......

Wei Guan; Hengshan Hu; Xiaobo Zheng

2013-01-01T23:59:59.000Z

428

Thermal and hydraulic aspects of the KTB drill site  

Science Journals Connector (OSTI)

......Continental Deep Drilling (KTB)project...accompanied by large-scale data...sections and borehole data show eastwards...submitted to borehole convection...fractured zones near large fluid reservoirs...preferential uptake of drilling mud these zones...demonstrated that the borehole profile is completelyunaffected......

T. Kohl; L. Rybach

1996-03-01T23:59:59.000Z

429

Drilling Through Gas Hydrates Formations: Managing Wellbore Stability Risks  

E-Print Network (OSTI)

in this workflow were based on a real field case. The results provide an understanding of the effects of drilling through hydratebearing sediments and of the impact of drilling fluid temperature and BHP on changes in temperature and pore pressure within...

Khabibullin, Tagir R.

2010-10-12T23:59:59.000Z

430

EUROPEAN GEOTHERMAL DRILLING EXPERIENCE- PROBLEM AREAS AND CASE STUDIES  

Office of Scientific and Technical Information (OSTI)

EUROPEAN GEOTHERMAL DRILLING EXPERIENCE- EUROPEAN GEOTHERMAL DRILLING EXPERIENCE- PROBLEM AREAS AND CASE STUDIES 0. Baron and P. Ungemach Commisslon of The European Communities Belglum ABSTRACT Geothermal d r i l l i n g h a s long been restricted i n Western Europe t o t h e sole d r y s t e a m f i e l d of L a r d e r e l l o i n I t a l y . I n t h e l a s t f e w y e a r s , a wider e x p e r i e n c e i s b u i l d i n g up a s a consequence of i n t e n s i f i e d explo- r a t i o n and development programs c a r r i e d o u t for e v a l u a t i o n and produc- t i o n of both l o w - and high-enthalpy geothermal resources. A sample Of some 40 boreholes i n d i c a t e s the following problem areas. 1. Low-Enthalpy D r i l l i n 9 Due t o s i m i l a r s e t t i n g s - - h o t water system flowing i n sedimentary u n i t s a t t e m p e r a t u r e s and d e p t h s r a n g i n g f r o m 40" t o 140°C (104" t o 284°F) and from 1,000 t

431

Drilling Waste Management Fact Sheet: Offsite Disposal at Commercial  

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

Commercial Disposal Facilities Commercial Disposal Facilities Fact Sheet - Commercial Disposal Facilities Although drilling wastes from many onshore wells are managed at the well site, some wastes cannot be managed onsite. Likewise, some types of offshore drilling wastes cannot be discharged, so they are either injected underground at the platform (not yet common in the United States) or are hauled back to shore for disposal. According to an American Petroleum Institute waste survey, the exploration and production segment of the U.S. oil and gas industry generated more than 360 million barrels (bbl) of drilling wastes in 1985. The report estimates that 28% of drilling wastes are sent to offsite commercial facilities for disposal (Wakim 1987). A similar American Petroleum Institute study conducted ten years later found that the volume of drilling waste had declined substantially to about 150 million bbl.

432

The effect of wellbore dynamics on data acquisition for pressure detection and the misuse of drilling parameters for surnormal pressure detection in the Gulf of Mexico  

E-Print Network (OSTI)

leases, offshore drilling in the Gu1f of Mexico has escalated to the point of being the most active area in the continental United States. This massive exploration and development program by the oil and gas industry has proven to be a marginal... adventure at best due to price controls on oil and gas in inteistate trade and the rapidly increasing cost of offshore drilling. In the last decade, the cost of drilling a 10, 000 foot exploratory we' ll has almost quadrupled. Because of the escalating...

Damron, Earl Bruce

2012-06-07T23:59:59.000Z

433

Drilling, instrumentation and sampling consideration for geoscience studies of magma-hydrothermal regimes  

SciTech Connect

Drilling, diagnostic, and sampling technologies are reviewed and a strawman drill hole is used for identifying scientific and technological limitations. (MHR)

Traeger, R.K.; Varnado, S.G.; Veneruso, A.F.; Behr, V.L.; Ortega, A.

1981-05-01T23:59:59.000Z

434

E-Print Network 3.0 - autolifting floating drilling Sample Search...  

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

7. Spar... that by one-third. o By producing more oil domestically though offshore drilling o Reducing our dependence... Ocean Explorer 12;Types of offshore drilling...

435

Drilling Waste Management Fact Sheet: Land Application  

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

Land Application Land Application Fact Sheet - Land Application The objective of applying drilling wastes to the land is to allow the soil's naturally occurring microbial population to metabolize, transform, and assimilate waste constituents in place. Land application is a form of bioremediation, and is important enough to be described in its own fact sheet; other forms of bioremediation are described in a separate fact sheet. Several terms are used to describe this waste management approach, which can be considered both treatment and disposal. In general, land farming refers to the repeated application of wastes to the soil surface, whereas land spreading and land treatment are often used interchangeably to describe the one-time application of wastes to the soil surface. Some practitioners do not follow the same terminology convention, and may interchange all three terms. Readers should focus on the technologies rather than on the specific names given to each process.

436

Development of electron reflection suppression materials for improved thermionic energy converter performance using thin film deposition techniques  

SciTech Connect

Nonideal electrode surfaces cause significant degree of electron reflection from collector during thermionic converter operation. The effect of the collector surface structure on the converter performance was assessed through the development of several electron reflection suppression materials using various thin film deposition techniques. The double-diode probe method was used to compare the J-V characteristics of converters with polished and modified collector surfaces for emitter temperature and cesium vapor pressure in the ranges of 900-2000 K and 0.02-1.5 torr, respectively. The coadsorption of cesium and oxygen with respective partial vapor pressures of {approx}1.27 torr and a few microtorrs reduced the emitter work function to a minimum value of 0.99 eV. It was found that the collector surfaces with matte black appearance such as platinum black, voided nickel from radio-frequency plasma sputtering, and etched electroless Ni-P with craterlike pore morphology exhibited much better performance compared with polished collector surface. For these thin films, the increase in the maximum output voltage was up to 2.0 eV. For optimum performance with minimum work function and maximum saturation emission current density, the emitter temperature was in the range of 1100-1500 K, depending on the collector surface structure. The use of these materials in cylindrical converter design and/or in combination with hybrid mode triode configuration holds great potential in low and medium scale power generators for commercial use.

Islam, Mohammad; Inal, Osman T.; Luke, James R. [Department of Materials and Metallurgical Engineering, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801 (United States); New Mexico Institute of Mining and Technology, Institute for Engineering Research and Applications (IERA) , 901 University Blvd. SE, Albuquerque, New Mexico 87106-4339 (United States)

2006-10-15T23:59:59.000Z

437

Drill-bit with full offset cutter bodies  

SciTech Connect

A rotary drag drill bit is seen wherein cutter bodies are rotatively connected to a main body structure at a fully offset position. The fully offset position is defined by a rotational axis of each cutter body, a longitudinal axis of the drill bit and end support points or positions of the cutter bodies. The rotational axes of the cutter bodies are perpendicular to the longitudinal axis of the drill bit. The end supports of the cutter body are each equal distance from any point on the longitudinal axis of the drill bit. The cutter bodies of essentially ellipsoidal configuration, being slightly thicker at a mid-portion thereof. Cutting elements are connected to flutes projecting above an outer surface of each cutter body. In a primary rotational direction of the drill string and drill bit, the rows abrade the bottom and side walls of a well bore as the cutter body attacks the earth formation as the drill bit is rotated. The impingement of the cutting elements of the cutter body on the earth formation imparts a secondary rotation to the cutter bodies, which secondary rotation is induced by the primary rotation. The secondary rotation allows the rows of cutting elements to engage the side wall of the bore and gauge the hole as well as abrading away material from the bottom of the well bore. A roller bearing assembly is provided for the cutter body to permit the secondary rotation, while a thrust bearing assembly assists the primary abrasive action imparted by the primary rotational movement of the rotary drill bit. A lubrication system is included in the main body structure of the drill bit wherein both the roller bearing assembly and thrust bearing assembly are lubricated.

Frear, L.

1985-11-12T23:59:59.000Z

438

Offshore and shipping activities in the Norwegian Arctic areas: The environmental dimension: Case: Norsk Hydro's drilling of well 7316/5-1, autumn 1992  

Science Journals Connector (OSTI)

This paper describes how Norsk Hydro planned and executed the safety, environment and emergency preparedness matters related to the exploration drilling of well 7316/5-1, the most northern well drilled on the Norwegian continental shelf. This well (1992) was Norsk Hydro's first experience with the new above-mentioned regulations. For later wells, Norsk Hydro developed both how to use and implement these new regulations.

Magne Thomassen

1994-01-01T23:59:59.000Z

439

Development of criteria for fatigue repairs in bridge girders damaged by out-of-plane distortion  

E-Print Network (OSTI)

analyses. The findings are then used to derive general guidelines for the use of drilled holes. In addition, safer alternatives to drilling holes are developed and recommended. A study of flame-cut holes is also conducted. Experimental data indicates...

Wilson, Scott David

1994-01-01T23:59:59.000Z

440

A leading index of drilling activity: Update and improvements  

SciTech Connect

A five-component composite leading index of United States rotary rig drilling activity is updated. The index is presented for 1949 through April 1986 and is shown to consistently lead turning points in drilling activity. Seven new leading indices based on some new components are also presented. A forecast of drilling activity is made for the remainder of 1986 based on the leading index and the current economic condition of the petroleum industry. The methods used to prepare time series and construct indices are reviewed.

Buell, R.S.; Maurer, R.A.

1986-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drilling techniques development" 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

Oil and Gas Exploration, Drilling, Transportation, and Production (South  

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

Exploration, Drilling, Transportation, and Production Exploration, Drilling, Transportation, and Production (South Carolina) Oil and Gas Exploration, Drilling, Transportation, and Production (South Carolina) < Back Eligibility Commercial Construction Industrial Institutional Investor-Owned Utility Municipal/Public Utility Rural Electric Cooperative Utility Savings Category Buying & Making Electricity Program Info State South Carolina Program Type Environmental Regulations Siting and Permitting Provider South Carolina Department of Health and Environmental Control This legislation prohibits the waste of oil or gas and the pollution of water, air, or land. The Department of Health and Environmental Control is authorized to implement regulations designed to prevent the waste of oil and gas, promote environmental stewardship, and regulate the exploration,

442

Technology Development and Field Trials of EGS Drilling Systems  

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

WHERE: TOB Torque On Bit RPM Bit Revolutions Per Minute ROP Rate Of Penetration DOC Depth Of Cut r Radius of the bit DEFINING TWO VARIABLES OF...

443

Development of a High-Temperature Diagnostics-While-Drilling...  

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

contributor to sample failure was the occurrence of "frac outs" where entrapped gases (air or other products of off-gassing) rapidly escaped during curing, causing a split,...

444

NREL Develops Technique to Measure Membrane Thickness and Defects in Polymer Electrode Membrane Fuel Cells (Fact Sheet), Hydrogen and Fuel Cell Technical Highlights (HFCTH)  

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

4 * November 2010 4 * November 2010 2-D image of a PEM fuel cell membrane sample measured with the NREL device (corresponding optical image in inset). The image shows bubble defects and a color shift in the sample. An area of approximately three inches by three inches is shown. NREL Develops Technique to Measure Membrane Thickness and Defects in Polymer Electrode Membrane Fuel Cells Project: Fuel Cell MEA Manufacturing R&D NREL Team: Hydrogen Technologies & Systems Center and National Center for Photovoltaics Accomplishment: NREL developed a technique to measure the two-dimensional thickness of polymer electrolyte membrane (PEM) fuel cell membranes for in-line quality control during manufacturing (first reported in May 2009). The technique is based on an NREL-developed instrument currently used in continuous manufacturing of photovoltaic cells. This

445

Determining root causes of drilling problems by combining cases and general knowledge  

E-Print Network (OSTI)

-based, knowledge intensive, oil well drilling 1 Introduction Drilling of oil wells is an expensive offshore based reasoning to improve efficiency of oil well drilling. Their focus was on lost circulation, whichDetermining root causes of drilling problems by combining cases and general knowledge Samad

Aamodt, Agnar

446

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

447

An Advisory System For Selecting Drilling Technologies and Methods in Tight Gas Reservoirs  

E-Print Network (OSTI)

). 13 Fig. 6? Rotary drilling process (Bourgoyne et al. 1986). Two main systems are currently used to rotate the drill bit. As of 2007, for onshore drilling, 55% of the drilling rigs are equipped with a rotary table and Kelly- bushing while 45... ................................................................................................ 11 2.2.2. Discussion .................................................................................................. 12 2.3 Fit For Purpose Land Rig ................................................................................. 16 2.4 Slim...

Pilisi, Nicolas

2010-01-16T23:59:59.000Z

448

Glass Buttes Exploration and Drilling: 2010 Geothermal Technologies Program Peer Review Presentation, Walsh, et al, Ormat  

SciTech Connect

Glass Buttes Exploration and Drilling: 2010 Geothermal Technologies Program Peer Review Presentation, Walsh, et al, Ormat

Ezra Zemach

2010-01-01T23:59:59.000Z

449

NETL: News Release - Carbon Sequestration Partner Initiates Drilling of CO2  

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

7, 2009 7, 2009 Carbon Sequestration Partner Initiates Drilling of CO2 Injection Well in Illinois Basin Large-Scale Test to Inject One Million Metric Tonnes of Carbon Dioxide into Saline Formation Washington, DC-The Midwest Geological Sequestration Consortium (MGSC), one of seven regional partnerships created by the U.S. Department of Energy (DOE) to advance carbon sequestration technologies nationwide, has begun drilling the injection well for their large-scale carbon dioxide (CO2) injection test in Decatur, Illinois. The test is part of the development phase of the Regional Carbon Sequestration Partnerships program, an Office of Fossil Energy initiative launched in 2003 to determine the best approaches for capturing and permanently storing gases that can contribute to global climate change.

450

USE OF SLIMHOLE DRILLING TO REDUCE WELL COSTS 30-50%: ARNIM PROSPECT  

SciTech Connect

This report highlights the drilling of two shallow oil wells in Fayette County, Texas. The operator of these two wells was Stanton Mineral Development, Inc. The aim of this project was to successfully complete the two (2) wells, emphasizing tight oversight of the technological aspects, neglect of which are the primary causes of failure in this mature producing region as well as unnecessarily expensive wells. Discussions contained here within are not limited to just the execution of the project itself, but a historical and technical analysis which forms a basis for the decisions made both during drilling and completion. Additionally, there is substantial dialogue covering the financial benefits associated with the findings of this project.

WM. Stanton McDonald; Christopher M. Long

2002-06-13T23:59:59.000Z

451

Wear mechanisms for polycrystalline-diamond compacts as utilized for drilling in geothermal environments. Final report  

SciTech Connect

The work, which was performed in the period from 12/6/79 to 9/30/81 included: (1) rock cutting experiments with single point polycrystalline sintered diamond compact (PDC) cutters to quantitatively determine cutter wear rates and identify wear modes, (2) PDC rock cutting experiments to measure temperatures developed and examine the effects of tool wear, cutting parameters and coolant flow rates on temperature generation, (3) assisting in performing full scale laboratory drilling experiments with PDC bits, using preheated air to simulate geothermal drilling conditions, and in analyzing and reporting the experimental results, and (4) acting in a consulting role with the purpose of establishing design specifications for geothermal hard matrix PDC bits to be procured by Sandia Laboratories for test purposes.

Hibbs, L.E. Jr.; Sogoian, G.C.

1983-05-01T23:59:59.000Z

452

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

453

Field Investigations And Temperature-Gradient Drilling At Marine Corps  

Open Energy Info (EERE)

Investigations And Temperature-Gradient Drilling At Marine Corps Investigations And Temperature-Gradient Drilling At Marine Corps Air-Ground Combat Center (Mcagcc), Twenty-Nine Palms, Ca Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Field Investigations And Temperature-Gradient Drilling At Marine Corps Air-Ground Combat Center (Mcagcc), Twenty-Nine Palms, Ca Details Activities (4) Areas (1) Regions (0) Abstract: The U.S. Navy's Geothermal Program Office (GPO) has been conducting geothermal exploration activities in the Camp Wilson area of Marine Corps Air-Ground Combat Center (MCAGCC), Twenty-nine Palms, CA, for almost two years. Work has included self-potential (SP) surveys, fault structure analyses using LiDAR surveys, and drilling and assessment of five (5) temperature-gradient holes. For several decades the GPO has worked

454

Geothermal Drilling Success at Blue Mountain, Nevada | Open Energy  

Open Energy Info (EERE)

Drilling Success at Blue Mountain, Nevada Drilling Success at Blue Mountain, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Geothermal Drilling Success at Blue Mountain, Nevada Abstract Exploration in a blind prospect has led to the confirmation of a geothermal resource at Blue Mt.Nevada. The latest results include drilling of three production wells into Piedmont faults. These wells produce from a 185 to 190°C dilute benign brine reservoir. Short flow tests have shown prolific flow rates and indications of reservoir continuity.Well entries have shown that system permeability is fault-dominated. This is confirmed by the results of seismic reflection imaging. Young faulting in the area includes intersecting range front faults that strike NW, NS, and NE. Exposure of

455

Historical Exploration And Drilling Data From Geothermal Prospects And  

Open Energy Info (EERE)

Exploration And Drilling Data From Geothermal Prospects And Exploration And Drilling Data From Geothermal Prospects And Power Generation Projects In The Western United States Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Historical Exploration And Drilling Data From Geothermal Prospects And Power Generation Projects In The Western United States Details Activities (20) Areas (7) Regions (0) Abstract: In 2005, Idaho National Laboratory was conducting a study of historical exploration practices and success rates for geothermal resources identification. Geo Hills Associates (GHA) was contracted to review and accumulate copies of published literature, Internet information, and unpublished geothermal exploration data to determine the level of exploration and drilling activities that occurred for all of the currently

456

Slimhole Handbook- Procedures and Recommendations for Slimhole Drilling and  

Open Energy Info (EERE)

Slimhole Handbook- Procedures and Recommendations for Slimhole Drilling and Slimhole Handbook- Procedures and Recommendations for Slimhole Drilling and Testing in Geothermal Exploration Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Slimhole Handbook- Procedures and Recommendations for Slimhole Drilling and Testing in Geothermal Exploration Abstract No abstract prepared. Authors Jim Combs, John T. Finger, Colin Goranson, Charles E. Hockox Jr., Ronald D. Jacobsen and Gene Polik Organization Sandia National Laboratories Published Geothermal Technologies Legacy Collection, 1999 Report Number SAND99-1976 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Slimhole Handbook- Procedures and Recommendations for Slimhole Drilling and Testing in Geothermal Exploration Citation

457

NEPA COMPLIANCE SURVEY Project Information Project Title: Casing Drilling Test  

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

Casing Drilling Test Casing Drilling Test Date: 5-17-201 1 DOE Code: 6730-020-72000 Contractor Code: 8067-806 Project Lead: Marl< Duletsky Project Overview 1, Brief project description ~nclude The existing 13-1-SX-23 location and entry road will be reworldrilling rig (SST anything that could impact the rig #3). The two existing wells on the location will be capped at ground level, and a new well will be drilled en