ATE373159T1 - ADJUSTABLE STABILIZER FOR DIRECTIONAL DRILLING - Google Patents

ADJUSTABLE STABILIZER FOR DIRECTIONAL DRILLING

Info

Publication number
ATE373159T1
ATE373159T1 AT01996667T AT01996667T ATE373159T1 AT E373159 T1 ATE373159 T1 AT E373159T1 AT 01996667 T AT01996667 T AT 01996667T AT 01996667 T AT01996667 T AT 01996667T AT E373159 T1 ATE373159 T1 AT E373159T1
Authority
AT
Austria
Prior art keywords
bore
mandrel
actuate
pressure
directional drilling
Prior art date
Application number
AT01996667T
Other languages
German (de)
Inventor
Mark Alexander Russell
Andrew Ollerenshaw
Original Assignee
Toolbox Drilling Solutions 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 Toolbox Drilling Solutions Ltd filed Critical Toolbox Drilling Solutions Ltd
Application granted granted Critical
Publication of ATE373159T1 publication Critical patent/ATE373159T1/en

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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
    • E21B23/006—"J-slot" systems, i.e. lug and slot indexing mechanisms
    • 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
    • E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
    • E21B34/108—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with time delay systems, e.g. hydraulic impedance mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
  • Pens And Brushes (AREA)
  • Surgical Instruments (AREA)

Abstract

A stabiliser (10) has a body (12) having a through-bore (16). A mandrel (14), also having a through-bore (20), is axially slidable in the body bore to actuate and de-actuate the tool. A step (64) in the body defines annular chambers (102, 104) between the mandrel and body on either side of the step. A control piston (18) in the mandrel alternately directs drilling mud pumped under pressure along said body bore and mandrel bore to the chambers to drive the mandrel hydraulically to actuate and de-actuate the tool. The control piston has a through-bore (46) and is slidable in the mandrel bore against the force of a return spring (40) by drilling mud pressure from a low-pressure position to a pressure position. The pressure position is alternately one of an actuate position (a) and a de-actuate position (b), axially spaced along the mandrel bore from said actuate position.
AT01996667T 2000-11-20 2001-11-15 ADJUSTABLE STABILIZER FOR DIRECTIONAL DRILLING ATE373159T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0028243A GB2369136A (en) 2000-11-20 2000-11-20 A down-hole tool

Publications (1)

Publication Number Publication Date
ATE373159T1 true ATE373159T1 (en) 2007-09-15

Family

ID=9903489

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01996667T ATE373159T1 (en) 2000-11-20 2001-11-15 ADJUSTABLE STABILIZER FOR DIRECTIONAL DRILLING

Country Status (7)

Country Link
EP (1) EP1346128B1 (en)
AT (1) ATE373159T1 (en)
AU (1) AU2002218396A1 (en)
CA (1) CA2429459C (en)
DE (1) DE60130483T2 (en)
GB (1) GB2369136A (en)
WO (1) WO2002040823A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7004266B2 (en) 1999-03-05 2006-02-28 Mark Alexander Russell Adjustable downhole tool
GB2347443B (en) * 1999-03-05 2003-03-26 Cutting & Wear Resistant Dev Adjustable down-hole tool

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974886A (en) * 1975-02-27 1976-08-17 Blake Jr Jack L Directional drilling tool
US3986554A (en) * 1975-05-21 1976-10-19 Schlumberger Technology Corporation Pressure controlled reversing valve
DE3561830D1 (en) 1985-01-07 1988-04-14 Smf Int Remotely controlled flow-responsive actuating device, in particular for actuating a stabilizer in a drill string
EP0251543B1 (en) 1986-07-03 1991-05-02 Charles Abernethy Anderson Downhole stabilisers
GB8915302D0 (en) * 1989-07-04 1989-08-23 Andergauge Ltd Drill string stabiliser
GB9117810D0 (en) * 1991-08-17 1991-10-09 Barold Technology Inc Drill bit steering
FR2703102B1 (en) * 1993-03-25 1999-04-23 Drillflex Method of cementing a deformable casing inside a wellbore or a pipe.
GB9508803D0 (en) * 1995-05-01 1995-06-21 Pbl Drilling Systems Limited Tubular actuator component for use in a drill-string
CA2234495C (en) * 1998-04-09 2004-02-17 Dresser Industries, Inc. Adjustable gauge downhole drilling assembly
GB2342935B (en) * 1998-10-12 2000-12-06 Pilot Drilling Control Ltd Indexing mechanism and apparatus incorporating the same
GB2347443B (en) * 1999-03-05 2003-03-26 Cutting & Wear Resistant Dev Adjustable down-hole tool

Also Published As

Publication number Publication date
CA2429459A1 (en) 2002-05-23
GB0028243D0 (en) 2001-01-03
EP1346128A1 (en) 2003-09-24
EP1346128B1 (en) 2007-09-12
CA2429459C (en) 2011-11-22
GB2369136A (en) 2002-05-22
AU2002218396A1 (en) 2002-05-27
WO2002040823A1 (en) 2002-05-23
DE60130483D1 (en) 2007-10-25
DE60130483T2 (en) 2008-06-12

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties