GB2408757B - Actuator Valve and Bias Unit - Google Patents

Actuator Valve and Bias Unit

Info

Publication number
GB2408757B
GB2408757B GB0328339A GB0328339A GB2408757B GB 2408757 B GB2408757 B GB 2408757B GB 0328339 A GB0328339 A GB 0328339A GB 0328339 A GB0328339 A GB 0328339A GB 2408757 B GB2408757 B GB 2408757B
Authority
GB
United Kingdom
Prior art keywords
bias unit
actuator valve
actuator
valve
bias
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
GB0328339A
Other versions
GB2408757A (en
GB0328339D0 (en
Inventor
Geoff Downton
Nigel Hale
Christian Menger
David L Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gemalto Terminals Ltd
Schlumberger Holdings Ltd
Original Assignee
Gemalto Terminals Ltd
Schlumberger Holdings Ltd
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 Gemalto Terminals Ltd, Schlumberger Holdings Ltd filed Critical Gemalto Terminals Ltd
Priority to GB0328339A priority Critical patent/GB2408757B/en
Publication of GB0328339D0 publication Critical patent/GB0328339D0/en
Publication of GB2408757A publication Critical patent/GB2408757A/en
Application granted granted Critical
Publication of GB2408757B publication Critical patent/GB2408757B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/066—Valve arrangements for boreholes or wells in wells electrically actuated
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
GB0328339A 2003-12-06 2003-12-06 Actuator Valve and Bias Unit Expired - Fee Related GB2408757B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0328339A GB2408757B (en) 2003-12-06 2003-12-06 Actuator Valve and Bias Unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0328339A GB2408757B (en) 2003-12-06 2003-12-06 Actuator Valve and Bias Unit

Publications (3)

Publication Number Publication Date
GB0328339D0 GB0328339D0 (en) 2004-01-07
GB2408757A GB2408757A (en) 2005-06-08
GB2408757B true GB2408757B (en) 2006-11-15

Family

ID=29764726

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0328339A Expired - Fee Related GB2408757B (en) 2003-12-06 2003-12-06 Actuator Valve and Bias Unit

Country Status (1)

Country Link
GB (1) GB2408757B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0519783D0 (en) * 2005-09-29 2005-11-09 Schlumberger Holdings Actuator
US20080156495A1 (en) * 2006-12-29 2008-07-03 Schlumberger Technology Corporation Method of using radial thrust elements to re-enter a previously-installed tubular in a lateral
GB2450498A (en) * 2007-06-26 2008-12-31 Schlumberger Holdings Battery powered rotary steerable drilling system
DE112011102059T5 (en) * 2010-06-18 2013-03-28 Schlumberger Technology B.V. Chip surface control for rotary steerable tool actuator
US11002077B2 (en) 2018-03-26 2021-05-11 Schlumberger Technology Corporation Borehole cross-section steering
US10633923B2 (en) 2018-03-26 2020-04-28 Novatek Ip, Llc Slidable rod downhole steering
US11795763B2 (en) 2020-06-11 2023-10-24 Schlumberger Technology Corporation Downhole tools having radially extendable elements

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5421421A (en) * 1990-11-22 1995-06-06 Appleton; Robert P. Apparatus for directional drilling
GB2325016A (en) * 1995-02-25 1998-11-11 Camco Drilling Group Ltd Steerable rotary drilling system
US6109370A (en) * 1996-06-25 2000-08-29 Ian Gray System for directional control of drilling
WO2003052237A1 (en) * 2001-12-19 2003-06-26 Schlumberger Holdings Limited Hybrid rotary steerable system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5421421A (en) * 1990-11-22 1995-06-06 Appleton; Robert P. Apparatus for directional drilling
GB2325016A (en) * 1995-02-25 1998-11-11 Camco Drilling Group Ltd Steerable rotary drilling system
US6109370A (en) * 1996-06-25 2000-08-29 Ian Gray System for directional control of drilling
WO2003052237A1 (en) * 2001-12-19 2003-06-26 Schlumberger Holdings Limited Hybrid rotary steerable system

Also Published As

Publication number Publication date
GB2408757A (en) 2005-06-08
GB0328339D0 (en) 2004-01-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20191206