NO20030685L - Ventil- og posisjonskontroll ved å bruke magnetoreologiske fluider - Google Patents

Ventil- og posisjonskontroll ved å bruke magnetoreologiske fluider

Info

Publication number
NO20030685L
NO20030685L NO20030685A NO20030685A NO20030685L NO 20030685 L NO20030685 L NO 20030685L NO 20030685 A NO20030685 A NO 20030685A NO 20030685 A NO20030685 A NO 20030685A NO 20030685 L NO20030685 L NO 20030685L
Authority
NO
Norway
Prior art keywords
valve
position control
magnetoreological
fluids
magnetoreological fluids
Prior art date
Application number
NO20030685A
Other languages
English (en)
Other versions
NO20030685D0 (no
NO325652B1 (no
Inventor
Michael Fripp
Darren R Barlow
Brandon Soileau
Original Assignee
Halliburton Energy Serv Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Halliburton Energy Serv Inc filed Critical Halliburton Energy Serv Inc
Publication of NO20030685D0 publication Critical patent/NO20030685D0/no
Publication of NO20030685L publication Critical patent/NO20030685L/no
Publication of NO325652B1 publication Critical patent/NO325652B1/no

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10Valve arrangements in drilling-fluid circulation systems
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/04Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/0415Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion using particular fluids, e.g. electro-active liquids
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00Valve arrangements for boreholes or wells
    • E21B34/06Valve arrangements for boreholes or wells in wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11Perforators; Permeators
    • E21B43/116Gun or shaped-charge perforators
    • E21B43/1185Ignition systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/002Electrical failure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/06Use of special fluids, e.g. liquid metal; Special adaptations of fluid-pressure systems, or control of elements therefor, to the use of such fluids
    • F15B21/065Use of electro- or magnetosensitive fluids, e.g. electrorheological fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Soft Magnetic Materials (AREA)
  • Cosmetics (AREA)
  • Magnetically Actuated Valves (AREA)
  • External Artificial Organs (AREA)
NO20030685A 2002-03-01 2003-02-12 Ventil- og posisjonskontroll ved a bruke magnetoreologiske fluider NO325652B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/090,054 US7428922B2 (en) 2002-03-01 2002-03-01 Valve and position control using magnetorheological fluids

Publications (3)

Publication Number Publication Date
NO20030685D0 NO20030685D0 (no) 2003-02-12
NO20030685L true NO20030685L (no) 2003-09-02
NO325652B1 NO325652B1 (no) 2008-06-30

Family

ID=22221056

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20030685A NO325652B1 (no) 2002-03-01 2003-02-12 Ventil- og posisjonskontroll ved a bruke magnetoreologiske fluider

Country Status (4)

Country Link
US (1) US7428922B2 (no)
GB (2) GB2424014B (no)
NO (1) NO325652B1 (no)
SG (1) SG106130A1 (no)

Families Citing this family (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7046509B2 (en) * 2001-11-08 2006-05-16 Apple Computer, Inc. Computer controlled display device
US7289315B2 (en) * 2001-11-08 2007-10-30 Apple Inc. Computer controlled display device
US7145768B2 (en) * 2001-11-08 2006-12-05 Apple Computer, Inc. Computer controlled display device
US7042714B2 (en) * 2001-11-08 2006-05-09 Apple Computer, Inc. Computer controlled display device
US7209344B2 (en) 2001-11-08 2007-04-24 Apple Inc. Computer controlled display device
US6751004B2 (en) * 2002-10-31 2004-06-15 Hewlett-Packard Development Company, L.P. Optical system with magnetorheological fluid
US20070234789A1 (en) * 2006-04-05 2007-10-11 Gerard Glasbergen Fluid distribution determination and optimization with real time temperature measurement
US7398680B2 (en) * 2006-04-05 2008-07-15 Halliburton Energy Services, Inc. Tracking fluid displacement along a wellbore using real time temperature measurements
US7646310B2 (en) * 2006-07-26 2010-01-12 Close David System for communicating downhole information through a wellbore to a surface location
US8443875B2 (en) 2007-07-25 2013-05-21 Smith International, Inc. Down hole tool with adjustable fluid viscosity
US20100051517A1 (en) * 2008-08-29 2010-03-04 Schlumberger Technology Corporation Actuation and pumping with field-responsive fluids
US8016026B2 (en) * 2008-11-25 2011-09-13 Baker Hughes Incorporated Actuator for downhole tools
US8899317B2 (en) 2008-12-23 2014-12-02 W. Lynn Frazier Decomposable pumpdown ball for downhole plugs
US8079413B2 (en) 2008-12-23 2011-12-20 W. Lynn Frazier Bottom set downhole plug
US8496052B2 (en) 2008-12-23 2013-07-30 Magnum Oil Tools International, Ltd. Bottom set down hole tool
US9163477B2 (en) 2009-04-21 2015-10-20 W. Lynn Frazier Configurable downhole tools and methods for using same
US9127527B2 (en) 2009-04-21 2015-09-08 W. Lynn Frazier Decomposable impediments for downhole tools and methods for using same
US9062522B2 (en) 2009-04-21 2015-06-23 W. Lynn Frazier Configurable inserts for downhole plugs
US9109428B2 (en) 2009-04-21 2015-08-18 W. Lynn Frazier Configurable bridge plugs and methods for using same
US9562415B2 (en) 2009-04-21 2017-02-07 Magnum Oil Tools International, Ltd. Configurable inserts for downhole plugs
US9181772B2 (en) 2009-04-21 2015-11-10 W. Lynn Frazier Decomposable impediments for downhole plugs
US20100323931A1 (en) * 2009-06-17 2010-12-23 Schlumberger Technology Corporation Stabilised emulsions
WO2011047775A1 (de) * 2009-10-19 2011-04-28 Hydac Technology Gmbh Vorrichtung zum impulsartigen freigeben einer in einem speichergehäuse bevorratbaren fluidmenge
US20110090496A1 (en) * 2009-10-21 2011-04-21 Halliburton Energy Services, Inc. Downhole monitoring with distributed optical density, temperature and/or strain sensing
US20110088462A1 (en) * 2009-10-21 2011-04-21 Halliburton Energy Services, Inc. Downhole monitoring with distributed acoustic/vibration, strain and/or density sensing
US8286705B2 (en) * 2009-11-30 2012-10-16 Schlumberger Technology Corporation Apparatus and method for treating a subterranean formation using diversion
US9388686B2 (en) 2010-01-13 2016-07-12 Halliburton Energy Services, Inc. Maximizing hydrocarbon production while controlling phase behavior or precipitation of reservoir impairing liquids or solids
US8839871B2 (en) 2010-01-15 2014-09-23 Halliburton Energy Services, Inc. Well tools operable via thermal expansion resulting from reactive materials
FR2955404B1 (fr) * 2010-01-18 2012-01-27 Commissariat Energie Atomique Actionneur fluidique et dispositif d'affichage a actionneurs fluidiques
CA2691891A1 (en) * 2010-02-04 2011-08-04 Trican Well Services Ltd. Applications of smart fluids in well service operations
US8453748B2 (en) 2010-03-31 2013-06-04 Halliburton Energy Services, Inc. Subterranean well valve activated with differential pressure
US8936095B2 (en) 2010-05-28 2015-01-20 Schlumberger Technology Corporation Methods of magnetic particle delivery for oil and gas wells
WO2011153245A1 (en) * 2010-06-01 2011-12-08 Advanced Magnet Lab, Inc. Closing of underwater oil spills with the help of magnetic powders
US9551203B2 (en) 2010-06-01 2017-01-24 Advanced Magnet Lab, Inc. Closing of underwater oil spills with the help of magnetic powders
WO2011153474A1 (en) * 2010-06-03 2011-12-08 Joseph Kahoe Electromagnetic oil pipe plugger
US9016373B2 (en) * 2010-06-05 2015-04-28 Jay VanDelden Magnetorheological blowout preventer
US8505625B2 (en) 2010-06-16 2013-08-13 Halliburton Energy Services, Inc. Controlling well operations based on monitored parameters of cement health
AU2011270879A1 (en) * 2010-06-23 2013-02-07 The Greenward Company L.L.C. Flow regulating applied magnetic envelope
US8930143B2 (en) 2010-07-14 2015-01-06 Halliburton Energy Services, Inc. Resolution enhancement for subterranean well distributed optical measurements
US8584519B2 (en) 2010-07-19 2013-11-19 Halliburton Energy Services, Inc. Communication through an enclosure of a line
US8596378B2 (en) 2010-12-01 2013-12-03 Halliburton Energy Services, Inc. Perforating safety system and assembly
US8474533B2 (en) 2010-12-07 2013-07-02 Halliburton Energy Services, Inc. Gas generator for pressurizing downhole samples
US20150041155A1 (en) * 2011-06-03 2015-02-12 Charlene Barnes-Kahoe Electromagnetic oil pipe plugger
US20120318510A1 (en) * 2011-06-15 2012-12-20 Schlumberger Technology Corporation Methods of generating magnetic particles in a subterranean environment
US8602100B2 (en) 2011-06-16 2013-12-10 Halliburton Energy Services, Inc. Managing treatment of subterranean zones
US8701771B2 (en) 2011-06-16 2014-04-22 Halliburton Energy Services, Inc. Managing treatment of subterranean zones
US8701772B2 (en) 2011-06-16 2014-04-22 Halliburton Energy Services, Inc. Managing treatment of subterranean zones
US8800651B2 (en) 2011-07-14 2014-08-12 Halliburton Energy Services, Inc. Estimating a wellbore parameter
USD703713S1 (en) 2011-07-29 2014-04-29 W. Lynn Frazier Configurable caged ball insert for a downhole tool
USD694280S1 (en) 2011-07-29 2013-11-26 W. Lynn Frazier Configurable insert for a downhole plug
USD698370S1 (en) 2011-07-29 2014-01-28 W. Lynn Frazier Lower set caged ball insert for a downhole plug
USD694281S1 (en) 2011-07-29 2013-11-26 W. Lynn Frazier Lower set insert with a lower ball seat for a downhole plug
US8590616B1 (en) 2012-02-22 2013-11-26 Tony D. McClinton Caged ball fractionation plug
DE102012007777A1 (de) * 2012-04-20 2013-10-24 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einem Streckwerk einer Spinnereivorbereitungsmaschine, insbesondere Strecke, Karde, Kämmmaschine, Lapwinder o. dgl.
CA2814376A1 (en) 2012-05-01 2013-11-01 Packers Plus Energy Services Inc. Actuator switch for a downhole tool, tool and method
US9982532B2 (en) 2012-05-09 2018-05-29 Hunt Energy Enterprises, L.L.C. System and method for controlling linear movement using a tapered MR valve
US8893785B2 (en) 2012-06-12 2014-11-25 Halliburton Energy Services, Inc. Location of downhole lines
US8899346B2 (en) 2012-10-17 2014-12-02 Halliburton Energy Services, Inc. Perforating assembly control
US9169705B2 (en) 2012-10-25 2015-10-27 Halliburton Energy Services, Inc. Pressure relief-assisted packer
US9823373B2 (en) 2012-11-08 2017-11-21 Halliburton Energy Services, Inc. Acoustic telemetry with distributed acoustic sensing system
WO2014098883A1 (en) * 2012-12-21 2014-06-26 Halliburton Energy Services, Inc. Liquid valve for flow control devices
US9169716B2 (en) * 2012-12-21 2015-10-27 Halliburton Energy Services, Inc. Liquid valve for flow control devices
US9587486B2 (en) 2013-02-28 2017-03-07 Halliburton Energy Services, Inc. Method and apparatus for magnetic pulse signature actuation
US9587487B2 (en) 2013-03-12 2017-03-07 Halliburton Energy Services, Inc. Wellbore servicing tools, systems and methods utilizing near-field communication
US9284817B2 (en) 2013-03-14 2016-03-15 Halliburton Energy Services, Inc. Dual magnetic sensor actuation assembly
US20140262268A1 (en) * 2013-03-15 2014-09-18 Halliburton Energy Services, Inc. ("HESI") Drilling and Completion Applications of Magnetorheological Fluid Barrier Pills
US9939080B2 (en) 2013-04-08 2018-04-10 University Of Houston Magnetorheological fluid device
US9255450B2 (en) 2013-04-17 2016-02-09 Baker Hughes Incorporated Drill bit with self-adjusting pads
US9752414B2 (en) 2013-05-31 2017-09-05 Halliburton Energy Services, Inc. Wellbore servicing tools, systems and methods utilizing downhole wireless switches
US20150075770A1 (en) 2013-05-31 2015-03-19 Michael Linley Fripp Wireless activation of wellbore tools
BR112016006872A2 (pt) * 2013-11-06 2017-08-01 Halliburton Energy Services Inc sistema de fundo de poço, aparelho para determinar uma propriedade de fluido de uma amostra de fluido de um poço e método para determinar a viscosidade de um fluido de produção em um poço
WO2015070885A2 (en) * 2013-11-12 2015-05-21 Hamed Arafat Mohamed Abdl Hamied Hamed Downhole hydo-mechanical pulling tool oil filed application
US9982508B2 (en) 2013-12-19 2018-05-29 Halliburton Energy Services, Inc. Intervention tool for delivering self-assembling repair fluid
MX2016006474A (es) 2013-12-19 2016-08-05 Halliburton Energy Services Inc Obturador de autoensamblaje.
WO2015095660A1 (en) * 2013-12-20 2015-06-25 Massachusetts Institute Of Technology Controlled liquid/solid mobility using external fields on lubricant-impregnated surfaces
MX2016006840A (es) 2013-12-30 2016-12-16 Halliburton Energy Services Inc Herramienta de ferrofluido para brindar estructuras modificables en pozos de sondeo.
WO2015102566A1 (en) 2013-12-30 2015-07-09 Halliburton Energy Services, Inc. Ferrofluid tool for isolation of objects in a wellbore
WO2015102561A1 (en) 2013-12-30 2015-07-09 Halliburton Energy Services, Inc. Ferrofluid tool for enhancing magnetic fields in a wellbore
WO2015102563A1 (en) 2013-12-30 2015-07-09 Halliburtion Energy Services, Inc. Ferrofluid tool for influencing electrically conductive paths in a wellbore
US9453386B2 (en) 2013-12-31 2016-09-27 Cameron International Corporation Magnetorheological fluid locking system
US11242725B2 (en) * 2014-09-08 2022-02-08 Halliburton Energy Services, Inc. Bridge plug apparatuses containing a magnetorheological fluid and methods for use thereof
US9890633B2 (en) 2014-10-20 2018-02-13 Hunt Energy Enterprises, Llc System and method for dual telemetry acoustic noise reduction
GB2547354B (en) 2014-11-25 2021-06-23 Halliburton Energy Services Inc Wireless activation of wellbore tools
US20160273303A1 (en) * 2015-03-19 2016-09-22 Schlumberger Technology Corporation Actuation system with locking feature
US10337252B2 (en) * 2015-05-08 2019-07-02 Halliburton Energy Services, Inc. Apparatus and method of alleviating spiraling in boreholes
BR112017023167B1 (pt) 2015-06-30 2022-08-09 Halliburton Energy Services, Inc Conjunto para uso em um furo de poço numa formação subterrânea
US10041305B2 (en) * 2015-09-11 2018-08-07 Baker Hughes Incorporated Actively controlled self-adjusting bits and related systems and methods
US10273759B2 (en) 2015-12-17 2019-04-30 Baker Hughes Incorporated Self-adjusting earth-boring tools and related systems and methods
US10408296B2 (en) 2016-02-25 2019-09-10 Fca Us Llc Metal stamping tool with a hybrid magnetorheological-nitrogen spring
US10808495B2 (en) 2016-09-15 2020-10-20 Halliburton Energy Services, Inc. Deploying sealant used in magnetic rheological packer
US10633929B2 (en) 2017-07-28 2020-04-28 Baker Hughes, A Ge Company, Llc Self-adjusting earth-boring tools and related systems
US10696336B2 (en) * 2017-10-17 2020-06-30 GM Global Technology Operations LLC Actuation system having a magnetorheological damper
US11078762B2 (en) 2019-03-05 2021-08-03 Swm International, Llc Downhole perforating gun tube and components
US10689955B1 (en) 2019-03-05 2020-06-23 SWM International Inc. Intelligent downhole perforating gun tube and components
US11268376B1 (en) 2019-03-27 2022-03-08 Acuity Technical Designs, LLC Downhole safety switch and communication protocol
US11499420B2 (en) 2019-12-18 2022-11-15 Baker Hughes Oilfield Operations Llc Oscillating shear valve for mud pulse telemetry and operation thereof
US11619119B1 (en) 2020-04-10 2023-04-04 Integrated Solutions, Inc. Downhole gun tube extension
US11199052B2 (en) * 2020-05-01 2021-12-14 Halliburton Energy Services, Inc. Magnetic depth of cut control
BR112022024019A2 (pt) 2020-06-02 2022-12-20 Baker Hughes Oilfield Operations Llc Unidade de liberação de válvula dependente do ângulo para um pulsador de válvula de cisalhamento

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661596A (en) * 1950-01-28 1953-12-08 Wefco Inc Field controlled hydraulic device
GB2039567B (en) * 1979-01-16 1983-01-06 Intorola Ltd Drill spring for use in borehole drilling
US4785300A (en) * 1983-10-24 1988-11-15 Schlumberger Technology Corporation Pressure pulse generator
US4718494A (en) * 1985-12-30 1988-01-12 Schlumberger Technology Corporation Methods and apparatus for selectively controlling fluid communication between a pipe string and a well bore annulus
US5073877A (en) * 1986-05-19 1991-12-17 Schlumberger Canada Limited Signal pressure pulse generator
US5158109A (en) * 1989-04-18 1992-10-27 Hare Sr Nicholas S Electro-rheological valve
DE3926908C1 (no) * 1989-08-16 1990-10-11 Eastman Christensen Co., Salt Lake City, Utah, Us
US5012740A (en) * 1990-01-05 1991-05-07 The United States Of America As Represented By The Secretary Of The Navy Electrorheologically damped impact system
US5048611A (en) * 1990-06-04 1991-09-17 Lindsey Completion Systems, Inc. Pressure operated circulation valve
US5115415A (en) * 1991-03-06 1992-05-19 Baker Hughes Incorporated Stepper motor driven negative pressure pulse generator
US5168931A (en) * 1991-09-30 1992-12-08 Halliburton Company Fluid control valve
US5223665A (en) * 1992-01-21 1993-06-29 Halliburton Company Method and apparatus for disabling detonation system for a downhole explosive assembly
US5277281A (en) * 1992-06-18 1994-01-11 Lord Corporation Magnetorheological fluid dampers
US5284330A (en) * 1992-06-18 1994-02-08 Lord Corporation Magnetorheological fluid devices
US5353839A (en) * 1992-11-06 1994-10-11 Byelocorp Scientific, Inc. Magnetorheological valve and devices incorporating magnetorheological elements
US5816372A (en) * 1994-09-09 1998-10-06 Lord Corporation Magnetorheological fluid devices and process of controlling force in exercise equipment utilizing same
US5586084A (en) * 1994-12-20 1996-12-17 Halliburton Company Mud operated pulser
US5598908A (en) * 1995-06-05 1997-02-04 Gse, Inc. Magnetorheological fluid coupling device and torque load simulator system
US5787052A (en) * 1995-06-07 1998-07-28 Halliburton Energy Services Inc. Snap action rotary pulser
US5636178A (en) * 1995-06-27 1997-06-03 Halliburton Company Fluid driven siren pressure pulse generator for MWD and flow measurement systems
US5878851A (en) * 1996-07-02 1999-03-09 Lord Corporation Controllable vibration apparatus
US6019201A (en) * 1996-07-30 2000-02-01 Board Of Regents Of The University And Community College System Of Nevada Magneto-rheological fluid damper
CA2264279A1 (en) * 1996-08-23 1998-02-26 Nittetsu Mining Co., Ltd. Rheological fluid
US6036226A (en) * 1997-02-03 2000-03-14 General Dynamics Armament Systems, Inc. Inflator capable of modulation air bag inflation rate in a vehicle occupant restraint apparatus
US6095486A (en) * 1997-03-05 2000-08-01 Lord Corporation Two-way magnetorheological fluid valve assembly and devices utilizing same
US6219301B1 (en) * 1997-11-18 2001-04-17 Schlumberger Technology Corporation Pressure pulse generator for measurement-while-drilling systems which produces high signal strength and exhibits high resistance to jamming
DE19820569A1 (de) * 1998-05-08 1999-11-11 Schenck Ag Carl Ventil auf Basis elektrorheologischer und/oder magnetorheologischer Flüssigkeiten
JP3658745B2 (ja) * 1998-08-19 2005-06-08 株式会社ルネサステクノロジ バイポーラトランジスタ
US6145595A (en) * 1998-10-05 2000-11-14 Halliburton Energy Services, Inc. Annulus pressure referenced circulating valve
US6082715A (en) * 1999-03-09 2000-07-04 Navistar International Transportation Corp Integrated semi-active seat suspension and seat lockup system
US6257356B1 (en) * 1999-10-06 2001-07-10 Aps Technology, Inc. Magnetorheological fluid apparatus, especially adapted for use in a steerable drill string, and a method of using same
US6421298B1 (en) * 1999-10-08 2002-07-16 Halliburton Energy Services Mud pulse telemetry
US6514001B1 (en) * 1999-12-29 2003-02-04 Daimlerchrysler Corporation Variable length shaft and method for making the same
US6318968B1 (en) * 2000-03-31 2001-11-20 Delphi Technologies, Inc. Magnetorheological fluid pumping system
US6290033B1 (en) * 2000-03-31 2001-09-18 Delphi Technologies, Inc. Magnetorheological damper charging system
US6424082B1 (en) * 2000-08-03 2002-07-23 Hypertherm, Inc. Apparatus and method of improved consumable alignment in material processing apparatus
US6619388B2 (en) 2001-02-15 2003-09-16 Halliburton Energy Services, Inc. Fail safe surface controlled subsurface safety valve for use in a well
US6419058B1 (en) * 2001-03-30 2002-07-16 Delphi Technologies, Inc. Magnetorheological damper with piston bypass
GB2376178B (en) * 2001-05-23 2005-07-13 Kevin Jones Sleepover
US6568470B2 (en) * 2001-07-27 2003-05-27 Baker Hughes Incorporated Downhole actuation system utilizing electroactive fluids
US6681849B2 (en) * 2001-08-22 2004-01-27 Baker Hughes Incorporated Downhole packer system utilizing electroactive polymers

Also Published As

Publication number Publication date
SG106130A1 (en) 2004-09-30
GB0303599D0 (en) 2003-03-19
GB2385871B (en) 2006-11-22
GB2385871A (en) 2003-09-03
NO20030685D0 (no) 2003-02-12
NO325652B1 (no) 2008-06-30
GB2424014B (en) 2006-11-08
US7428922B2 (en) 2008-09-30
GB0604850D0 (en) 2006-04-19
GB2424014A (en) 2006-09-13
US20030166470A1 (en) 2003-09-04

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