DE3673818D1 - Bohrstrangstabilisator. - Google Patents

Bohrstrangstabilisator.

Info

Publication number
DE3673818D1
DE3673818D1 DE19863673818 DE3673818A DE3673818D1 DE 3673818 D1 DE3673818 D1 DE 3673818D1 DE 19863673818 DE19863673818 DE 19863673818 DE 3673818 A DE3673818 A DE 3673818A DE 3673818 D1 DE3673818 D1 DE 3673818D1
Authority
DE
Grant status
Grant
Patent type
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
DE19863673818
Other languages
English (en)
Inventor
John Forrest
Rory Tulloch
William Stewart
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.)
Drilex UK Ltd
Original Assignee
Drilex UK 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
Grant date

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods ; Cables; Casings; Tubings
    • E21B17/10Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1078Stabilisers or centralisers for casing, tubing or drill pipes
DE19863673818 1985-12-06 1986-11-28 Bohrstrangstabilisator. Expired - Fee Related DE3673818D1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8530078A GB8530078D0 (en) 1985-12-06 1985-12-06 Drill string stabiliser
PCT/GB1986/000728 WO1987003642A1 (en) 1985-12-06 1986-11-28 Drill string stabiliser

Publications (1)

Publication Number Publication Date
DE3673818D1 true DE3673818D1 (de) 1990-10-04

Family

ID=10589343

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863673818 Expired - Fee Related DE3673818D1 (de) 1985-12-06 1986-11-28 Bohrstrangstabilisator.

Country Status (5)

Country Link
US (1) US4844179A (de)
EP (1) EP0248833B1 (de)
DE (1) DE3673818D1 (de)
GB (1) GB8530078D0 (de)
WO (1) WO1987003642A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8908014D0 (en) * 1989-04-10 1989-05-24 Smith Int North Sea A milling tool stabiliser
US7361411B2 (en) * 2003-04-21 2008-04-22 Att Technology, Ltd. Hardfacing alloy, methods, and products
US20090258250A1 (en) * 2003-04-21 2009-10-15 ATT Technology, Ltd. d/b/a Amco Technology Trust, Ltd. Balanced Composition Hardfacing Alloy
JP5068020B2 (ja) * 2006-02-20 2012-11-07 シャープ株式会社 窒化物半導体発光素子の製造方法
US20070209839A1 (en) * 2006-03-08 2007-09-13 ATT Technology Trust, Ltd. d/b/a Arnco Technology Trust, Ltd. System and method for reducing wear in drill pipe sections
CA2550801C (en) * 2006-06-22 2010-07-20 Boart Longyear Inc. Drilling equipment
FR2953249B1 (fr) * 2009-11-27 2011-12-16 Vam Drilling France Composants de garniture de forage et train de composants
GB201206405D0 (en) 2012-04-11 2012-05-23 Managed Pressure Operations Method of handling a gas influx in a riser
US20160312545A1 (en) * 2015-04-21 2016-10-27 Schlumberger Technology Corporation Drilling stabilizer with sleeve over blades

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561549A (en) * 1968-06-07 1971-02-09 Smith Ind International Inc Slant drilling tools for oil wells
US3642079A (en) * 1970-06-23 1972-02-15 Servco Co Multisleeve stabilizer
US3933395A (en) * 1973-12-13 1976-01-20 Reamco, Inc. Stabilizer
US3938853A (en) * 1974-05-01 1976-02-17 Christensen Diamond Products Company Shrink-fit sleeve apparatus for drill strings
US3999618A (en) * 1975-01-22 1976-12-28 Smith International, Inc. Hammer stabilizer
US3978933A (en) * 1975-01-27 1976-09-07 Smith International, Inc. Bit-adjacent stabilizer and steel
US4000549A (en) * 1975-07-14 1977-01-04 Eastman-Whipstock, Inc. Stabilizer
US4101179A (en) * 1977-10-03 1978-07-18 Royal Tool Company, Inc. Drilling stabilizer including mechanical interlock device
US4441565A (en) * 1981-03-19 1984-04-10 Santrade Ltd. Guiding device for percussion drills
US4384626A (en) * 1982-02-22 1983-05-24 Smith International, Inc. Clamp-on stabilizer
US4560013A (en) * 1984-02-16 1985-12-24 Baker Oil Tools, Inc. Apparatus for directional drilling and the like of subterranean wells
GB8430030D0 (en) * 1984-10-26 1985-01-09 Metal X Corp Of Texas Sleeve-type stabiliser

Also Published As

Publication number Publication date Type
WO1987003642A1 (en) 1987-06-18 application
EP0248833A1 (de) 1987-12-16 application
US4844179A (en) 1989-07-04 grant
GB8530078D0 (en) 1986-01-15 grant
EP0248833B1 (de) 1990-08-29 grant

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee