DE60022685D1 - Bi-zentrales Bohrzeug zum Bohren durch Vorrohrrungsschuh - Google Patents

Bi-zentrales Bohrzeug zum Bohren durch Vorrohrrungsschuh

Info

Publication number
DE60022685D1
DE60022685D1 DE60022685T DE60022685T DE60022685D1 DE 60022685 D1 DE60022685 D1 DE 60022685D1 DE 60022685 T DE60022685 T DE 60022685T DE 60022685 T DE60022685 T DE 60022685T DE 60022685 D1 DE60022685 D1 DE 60022685D1
Authority
DE
Germany
Prior art keywords
vorrohrrungsschuh
drilling
central drill
drill
central
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 - Lifetime
Application number
DE60022685T
Other languages
English (en)
Other versions
DE60022685T2 (de
Inventor
Graham R Watson
Steven James Hart
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.)
ReedHycalog UK Ltd
Original Assignee
Camco International 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
Application filed by Camco International UK Ltd filed Critical Camco International UK Ltd
Publication of DE60022685D1 publication Critical patent/DE60022685D1/de
Application granted granted Critical
Publication of DE60022685T2 publication Critical patent/DE60022685T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/265—Bi-center drill bits, i.e. an integral bit and eccentric reamer used to simultaneously drill and underream the hole
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B7/067—Deflecting the direction of boreholes with means for locking sections of a pipe or of a guide for a shaft in angular relation, e.g. adjustable bent sub

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)
  • Earth Drilling (AREA)
DE60022685T 1999-10-28 2000-10-26 Bi-zentrales Bohrzeug zum Bohren durch Vorrohrrungsschuh Expired - Lifetime DE60022685T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16217999P 1999-10-28 1999-10-28
US162179 1999-10-28
US16342099P 1999-11-03 1999-11-03
US163420 1999-11-03

Publications (2)

Publication Number Publication Date
DE60022685D1 true DE60022685D1 (de) 2005-10-20
DE60022685T2 DE60022685T2 (de) 2006-06-22

Family

ID=26858509

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60002541T Expired - Lifetime DE60002541T2 (de) 1999-10-28 2000-10-26 Bi-zentrales Bohrzeug zum Bohren durch Verrohrungsschuh
DE60022685T Expired - Lifetime DE60022685T2 (de) 1999-10-28 2000-10-26 Bi-zentrales Bohrzeug zum Bohren durch Vorrohrrungsschuh

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE60002541T Expired - Lifetime DE60002541T2 (de) 1999-10-28 2000-10-26 Bi-zentrales Bohrzeug zum Bohren durch Verrohrungsschuh

Country Status (4)

Country Link
US (2) US6394200B1 (de)
EP (1) EP1096103B1 (de)
DE (2) DE60002541T2 (de)
GB (1) GB2355744B (de)

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US6620858B2 (en) * 2000-08-07 2003-09-16 Eastman Chemical Company Colorants containing copolymerizable vinyl groups and sulfonamide linkages
EP1182323B1 (de) * 2000-08-21 2003-09-10 Camco International (UK) Limited Mehrrichtungsschneidelemente für bi-zentrales Bohrwerkzeug zum Bohren eines Verrohrungsschuhs
US6739416B2 (en) 2002-03-13 2004-05-25 Baker Hughes Incorporated Enhanced offset stabilization for eccentric reamers
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US8245797B2 (en) * 2007-10-02 2012-08-21 Baker Hughes Incorporated Cutting structures for casing component drillout and earth-boring drill bits including same
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US20100101867A1 (en) * 2008-10-27 2010-04-29 Olivier Sindt Self-stabilized and anti-whirl drill bits and bottom-hole assemblies and systems for using the same
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Also Published As

Publication number Publication date
GB0026076D0 (en) 2000-12-13
DE60002541T2 (de) 2004-04-08
GB2355744B (en) 2002-04-10
DE60002541D1 (de) 2003-06-12
EP1096103B1 (de) 2003-05-07
US6606923B2 (en) 2003-08-19
EP1096103A1 (de) 2001-05-02
US6394200B1 (en) 2002-05-28
GB2355744A (en) 2001-05-02
US20020069725A1 (en) 2002-06-13
DE60022685T2 (de) 2006-06-22

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