DE60002541D1 - Bi-zentrales Bohrzeug zum Bohren durch Verrohrungsschuh - Google Patents

Bi-zentrales Bohrzeug zum Bohren durch Verrohrungsschuh

Info

Publication number
DE60002541D1
DE60002541D1 DE60002541T DE60002541T DE60002541D1 DE 60002541 D1 DE60002541 D1 DE 60002541D1 DE 60002541 T DE60002541 T DE 60002541T DE 60002541 T DE60002541 T DE 60002541T DE 60002541 D1 DE60002541 D1 DE 60002541D1
Authority
DE
Germany
Prior art keywords
drilling
casing shoe
central
tool
drilling tool
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
DE60002541T
Other languages
English (en)
Other versions
DE60002541T2 (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
Application granted granted Critical
Publication of DE60002541D1 publication Critical patent/DE60002541D1/de
Publication of DE60002541T2 publication Critical patent/DE60002541T2/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
DE60002541T 1999-10-28 2000-10-26 Bi-zentrales Bohrzeug zum Bohren durch Verrohrungsschuh Expired - Lifetime DE60002541T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16217999P 1999-10-28 1999-10-28
US162179P 1999-10-28
US16342099P 1999-11-03 1999-11-03
US163420P 2009-03-25

Publications (2)

Publication Number Publication Date
DE60002541D1 true DE60002541D1 (de) 2003-06-12
DE60002541T2 DE60002541T2 (de) 2004-04-08

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 After (1)

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

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
DE60100727T2 (de) * 2000-08-21 2004-07-22 Camco International (Uk) Ltd., Stonehouse 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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US7591327B2 (en) * 2005-11-21 2009-09-22 Hall David R Drilling at a resonant frequency
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USD678368S1 (en) 2007-02-12 2013-03-19 David R. Hall Drill bit with a pointed cutting element
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US8066085B2 (en) 2007-08-15 2011-11-29 Schlumberger Technology Corporation Stochastic bit noise control
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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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US8960329B2 (en) * 2008-07-11 2015-02-24 Schlumberger Technology Corporation Steerable piloted drill bit, drill system, and method of drilling curved boreholes
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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
US20100101864A1 (en) * 2008-10-27 2010-04-29 Olivier Sindt Anti-whirl drill bits, wellsite systems, and methods of using the same
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CN106812469A (zh) * 2015-11-27 2017-06-09 成都百施特金刚石钻头有限公司 双心井下扩眼工具体
CN110678622B (zh) 2017-05-05 2021-12-21 史密斯国际有限公司 阶梯式井下工具和使用方法
CN109025831B (zh) * 2018-09-11 2020-03-13 中国石油大学(北京) 基于射流技术的混合动力pdc钻头
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Also Published As

Publication number Publication date
GB0026076D0 (en) 2000-12-13
DE60022685D1 (de) 2005-10-20
EP1096103B1 (de) 2003-05-07
US6606923B2 (en) 2003-08-19
GB2355744A (en) 2001-05-02
US20020069725A1 (en) 2002-06-13
DE60002541T2 (de) 2004-04-08
EP1096103A1 (de) 2001-05-02
GB2355744B (en) 2002-04-10
US6394200B1 (en) 2002-05-28
DE60022685T2 (de) 2006-06-22

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