NO20070311L - Bore- og hullutvideranordning - Google Patents

Bore- og hullutvideranordning

Info

Publication number
NO20070311L
NO20070311L NO20070311A NO20070311A NO20070311L NO 20070311 L NO20070311 L NO 20070311L NO 20070311 A NO20070311 A NO 20070311A NO 20070311 A NO20070311 A NO 20070311A NO 20070311 L NO20070311 L NO 20070311L
Authority
NO
Norway
Prior art keywords
arm units
fluid pressure
cutting head
drill
drilling fluid
Prior art date
Application number
NO20070311A
Other languages
English (en)
Other versions
NO335118B1 (no
Inventor
John E Campbell
Charles H Dewey
Lance D Underwood
Ronald G Schmidt
Original Assignee
Smith International
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 Smith International filed Critical Smith International
Publication of NO20070311L publication Critical patent/NO20070311L/no
Publication of NO335118B1 publication Critical patent/NO335118B1/no

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/28Enlarging drilled holes, e.g. by counterboring
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/325Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools the cutter being shifted by a spring mechanism
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK 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
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10Valve arrangements in drilling-fluid circulation systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (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)
  • Drilling And Boring (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

Ekspanderbar boreanordning anbragt på en nedre ende av en borestreng og omfattende et skjærehode og et hovedsakelig rørformet hovedelement nær skjærehodet, idet dette danner flere aksiale utsparinger utformet til anbringelse av armenheter utformet til å beveges mellom en tilbakeført stilling og en utført stilling. En strømningsbryter aktiverer armenhetene når et borefluidtrykk overstiger en aktiveringsverdi, og boreanordningen omfatter et kraftutøvende element for å tilbakestille armenhetene når borefluidtrykket faller under en tilbakestillingsverdi.
NO20070311A 2006-01-18 2007-01-17 Ekspanderbar boreanordning og fremgangsmåte for boring av et borehull NO335118B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/334,195 US7506703B2 (en) 2006-01-18 2006-01-18 Drilling and hole enlargement device

Publications (2)

Publication Number Publication Date
NO20070311L true NO20070311L (no) 2007-07-19
NO335118B1 NO335118B1 (no) 2014-09-22

Family

ID=37846600

Family Applications (2)

Application Number Title Priority Date Filing Date
NO20070311A NO335118B1 (no) 2006-01-18 2007-01-17 Ekspanderbar boreanordning og fremgangsmåte for boring av et borehull
NO20140631A NO337905B1 (no) 2006-01-18 2014-05-19 Ekspanderbar boreanordning og fremgangsmåte for boring av et borehull

Family Applications After (1)

Application Number Title Priority Date Filing Date
NO20140631A NO337905B1 (no) 2006-01-18 2014-05-19 Ekspanderbar boreanordning og fremgangsmåte for boring av et borehull

Country Status (4)

Country Link
US (2) US7506703B2 (no)
CA (3) CA2723064C (no)
GB (1) GB2434389B (no)
NO (2) NO335118B1 (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2322753A3 (en) * 2006-12-04 2014-10-08 Baker Hughes Incorporated Expandable reamers for earth boring applications

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7036611B2 (en) 2002-07-30 2006-05-02 Baker Hughes Incorporated Expandable reamer apparatus for enlarging boreholes while drilling and methods of use
WO2006050252A2 (en) * 2004-11-01 2006-05-11 Allen Kent Rives Improved underreamer and method of use
US7861802B2 (en) * 2006-01-18 2011-01-04 Smith International, Inc. Flexible directional drilling apparatus and method
US8875810B2 (en) 2006-03-02 2014-11-04 Baker Hughes Incorporated Hole enlargement drilling device and methods for using same
US8162076B2 (en) * 2006-06-02 2012-04-24 Schlumberger Technology Corporation System and method for reducing the borehole gap for downhole formation testing sensors
WO2007144719A2 (en) * 2006-06-10 2007-12-21 Paul Bernard Lee Expandable downhole tool
GB0615883D0 (en) * 2006-08-10 2006-09-20 Meciria Ltd Steerable rotary directional drilling tool for drilling boreholes
US8028767B2 (en) 2006-12-04 2011-10-04 Baker Hughes, Incorporated Expandable stabilizer with roller reamer elements
US8657039B2 (en) 2006-12-04 2014-02-25 Baker Hughes Incorporated Restriction element trap for use with an actuation element of a downhole apparatus and method of use
GB0710891D0 (en) * 2007-06-07 2007-07-18 Anderguage Ltd Drilling apparatus
US7882905B2 (en) 2008-03-28 2011-02-08 Baker Hughes Incorporated Stabilizer and reamer system having extensible blades and bearing pads and method of using same
WO2009135116A2 (en) * 2008-05-01 2009-11-05 Baker Hughes Incorporated Stabilizer and reamer system having extensible blades and bearing pads and methods of using same
US8201642B2 (en) * 2009-01-21 2012-06-19 Baker Hughes Incorporated Drilling assemblies including one of a counter rotating drill bit and a counter rotating reamer, methods of drilling, and methods of forming drilling assemblies
GB0902253D0 (en) 2009-02-12 2009-03-25 Stable Services Ltd Downhole tool
GB0906211D0 (en) 2009-04-09 2009-05-20 Andergauge Ltd Under-reamer
US8297381B2 (en) 2009-07-13 2012-10-30 Baker Hughes Incorporated Stabilizer subs for use with expandable reamer apparatus, expandable reamer apparatus including stabilizer subs and related methods
US8267197B2 (en) * 2009-08-25 2012-09-18 Baker Hughes Incorporated Apparatus and methods for controlling bottomhole assembly temperature during a pause in drilling boreholes
EP2483510A2 (en) 2009-09-30 2012-08-08 Baker Hughes Incorporated Remotely controlled apparatus for downhole applications and methods of operation
US9022117B2 (en) 2010-03-15 2015-05-05 Weatherford Technology Holdings, Llc Section mill and method for abandoning a wellbore
WO2011123765A2 (en) 2010-04-01 2011-10-06 Center Rock Inc. Down-the-hole drill hammer having an extendable drill bit assembly
WO2011162999A2 (en) 2010-06-24 2011-12-29 Baker Hughes Incorporated Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming cutting elements for earth-boring tools
US8172009B2 (en) * 2010-07-14 2012-05-08 Hall David R Expandable tool with at least one blade that locks in place through a wedging effect
US8281880B2 (en) * 2010-07-14 2012-10-09 Hall David R Expandable tool for an earth boring system
CA2813618A1 (en) 2010-10-04 2012-04-12 Baker Hughes Incorporated Status indicators for use in earth-boring tools having expandable members and methods of making and using such status indicators and earth-boring tools
GB2486898A (en) 2010-12-29 2012-07-04 Nov Downhole Eurasia Ltd A downhole tool with at least one extendable offset cutting member for reaming a bore
US20120193147A1 (en) * 2011-01-28 2012-08-02 Hall David R Fluid Path between the Outer Surface of a Tool and an Expandable Blade
US8973679B2 (en) * 2011-02-23 2015-03-10 Smith International, Inc. Integrated reaming and measurement system and related methods of use
US8844635B2 (en) 2011-05-26 2014-09-30 Baker Hughes Incorporated Corrodible triggering elements for use with subterranean borehole tools having expandable members and related methods
US8960333B2 (en) 2011-12-15 2015-02-24 Baker Hughes Incorporated Selectively actuating expandable reamers and related methods
US9267331B2 (en) 2011-12-15 2016-02-23 Baker Hughes Incorporated Expandable reamers and methods of using expandable reamers
US8967300B2 (en) * 2012-01-06 2015-03-03 Smith International, Inc. Pressure activated flow switch for a downhole tool
US9493991B2 (en) 2012-04-02 2016-11-15 Baker Hughes Incorporated Cutting structures, tools for use in subterranean boreholes including cutting structures and related methods
EP2692982A3 (en) * 2012-08-01 2017-07-26 Halliburton Energy Services, Inc. Near-bit borehole opener tool and method of reaming
US9915101B2 (en) 2012-12-27 2018-03-13 Smith International, Inc. Underreamer for increasing a bore diameter
US9631434B2 (en) 2013-03-14 2017-04-25 Smith International, Inc. Underreamer for increasing a wellbore diameter
US9938781B2 (en) 2013-10-11 2018-04-10 Weatherford Technology Holdings, Llc Milling system for abandoning a wellbore
EP3055480B1 (en) 2013-10-12 2020-01-01 iReamer, LLC Intelligent reamer for rotary/slidable drilling system and method
US11970930B2 (en) 2013-10-12 2024-04-30 Mark May Intelligent circulating sub for rotary/sliding drilling system and method
US10590724B2 (en) * 2013-10-28 2020-03-17 Wellbore Integrity Solutions Llc Mill with adjustable gauge diameter
GB2520998B (en) 2013-12-06 2016-06-29 Schlumberger Holdings Expandable Reamer
US9915100B2 (en) * 2013-12-26 2018-03-13 Smith International, Inc. Underreamer for increasing a bore diameter
CN103924927B (zh) * 2014-05-14 2016-02-10 衢州市易凡设计有限公司 一种桩孔智能扩径方法
FR3022290B1 (fr) * 2014-06-16 2019-06-14 Drillstar Industries Outil extensible pour un forage
US9863195B2 (en) * 2014-06-18 2018-01-09 Smith International, Inc. Passive pressure and load balancing bearing
GB2528456A (en) * 2014-07-21 2016-01-27 Schlumberger Holdings Reamer
US10519722B2 (en) 2014-07-21 2019-12-31 Schlumberger Technology Corporation Reamer
GB2528457B (en) * 2014-07-21 2018-10-10 Schlumberger Holdings Reamer
GB2528459B (en) * 2014-07-21 2018-10-31 Schlumberger Holdings Reamer
GB2528458A (en) * 2014-07-21 2016-01-27 Schlumberger Holdings Reamer
GB2528454A (en) * 2014-07-21 2016-01-27 Schlumberger Holdings Reamer
CN105525873B (zh) * 2014-09-29 2018-01-09 中国石油化工集团公司 推靠式旋转导向装置及其使用方法
US10316595B2 (en) 2014-11-13 2019-06-11 Z Drilling Holdings, Inc. Method and apparatus for reaming and/or stabilizing boreholes in drilling operations
GB2535219B (en) * 2015-02-13 2017-09-20 Schlumberger Holdings Bottomhole assembly
USD786645S1 (en) 2015-11-03 2017-05-16 Z Drilling Holdings, Inc. Reamer
CN105649549B (zh) * 2016-03-14 2017-10-27 中国石油大学(北京) 钻具扶正短节
CN106368654B (zh) * 2016-09-05 2021-04-23 中国石油化工股份有限公司 多分支井控制采油管柱及方法
CN106285483B (zh) * 2016-10-10 2018-10-30 贵州高峰石油机械股份有限公司 一种可变径扩眼器及其扩眼方法
DE102018105340A1 (de) * 2018-03-08 2019-09-12 Mhwirth Gmbh Bohrkopf und diesen umfassendes Bohrsystem
US10837234B2 (en) * 2018-03-26 2020-11-17 Novatek Ip, Llc Unidirectionally extendable cutting element steering
CN108952572A (zh) * 2018-08-24 2018-12-07 广州海洋地质调查局 一种连续管钻井井下可调导向钻井工具
US20210115747A1 (en) * 2019-08-26 2021-04-22 David A. Stokes Flow Diversion Valve for Downhole Tool Assembly
US11313178B2 (en) 2020-04-24 2022-04-26 Saudi Arabian Oil Company Concealed nozzle drill bit
RU2738124C1 (ru) * 2020-04-30 2020-12-08 Публичное акционерное общество «Татнефть» имени В.Д. Шашина Расширитель для одновременного бурения и расширения ствола скважины
US11867013B2 (en) * 2020-08-26 2024-01-09 Wellbore Integrity Solutions Llc Flow diversion valve for downhole tool assembly
CN114352207B (zh) * 2021-11-30 2024-03-22 中国矿业大学 一种液压传动型可变径的pdc钻头

Family Cites Families (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224507A (en) 1962-09-07 1965-12-21 Servco Co Expansible subsurface well bore apparatus
US3425500A (en) 1966-11-25 1969-02-04 Benjamin H Fuchs Expandable underreamer
US4055226A (en) 1976-03-19 1977-10-25 The Servco Company, A Division Of Smith International, Inc. Underreamer having splined torque transmitting connection between telescoping portions for control of cutter position
US4660657A (en) 1985-10-21 1987-04-28 Smith International, Inc. Underreamer
EP0251543B1 (en) 1986-07-03 1991-05-02 Charles Abernethy Anderson Downhole stabilisers
NO164118C (no) 1987-07-30 1990-08-29 Norsk Hydro As Hydraulisk operert roemmer.
CA2002135C (en) 1988-11-03 1999-02-02 James Bain Noble Directional drilling apparatus and method
US5014780A (en) 1990-05-03 1991-05-14 Uvon Skipper Long distance section mill for pipe in a borehole
DE4017761A1 (de) 1990-06-01 1991-12-05 Eastman Christensen Co Bohrwerkzeug zum abteufen von bohrungen in unterirdische gesteinsformationen
JPH0814233B2 (ja) 1990-07-18 1996-02-14 株式会社ハーモニック・ドライブ・システムズ 部材の姿勢制御装置および掘削機の掘削方向制御装置
US5060736A (en) 1990-08-20 1991-10-29 Smith International, Inc. Steerable tool underreaming system
US5307499A (en) * 1990-11-30 1994-04-26 Singapore Computer Systems Limited Interpretive object-oriented facility which can access pre-compiled classes
FR2671130B1 (fr) 1990-12-28 1993-04-23 Inst Francais Du Petrole Dispositif comportant deux elements articules dans un plan, applique a un equipement de forage.
NO178938C (no) 1992-04-30 1996-07-03 Geir Tandberg Anordning for utvidelse av borehull
US5332048A (en) 1992-10-23 1994-07-26 Halliburton Company Method and apparatus for automatic closed loop drilling system
US5318138A (en) 1992-10-23 1994-06-07 Halliburton Company Adjustable stabilizer
US5318137A (en) 1992-10-23 1994-06-07 Halliburton Company Method and apparatus for adjusting the position of stabilizer blades
GB9411228D0 (en) 1994-06-04 1994-07-27 Camco Drilling Group Ltd A modulated bias unit for rotary drilling
US5484029A (en) 1994-08-05 1996-01-16 Schlumberger Technology Corporation Steerable drilling tool and system
US5875859A (en) 1995-03-28 1999-03-02 Japan National Oil Corporation Device for controlling the drilling direction of drill bit
US5765653A (en) 1996-10-09 1998-06-16 Baker Hughes Incorporated Reaming apparatus and method with enhanced stability and transition from pilot hole to enlarged bore diameter
US6059051A (en) 1996-11-04 2000-05-09 Baker Hughes Incorporated Integrated directional under-reamer and stabilizer
GB2322651B (en) 1996-11-06 2000-09-20 Camco Drilling Group Ltd A downhole unit for use in boreholes in a subsurface formation
US5857531A (en) 1997-04-10 1999-01-12 Halliburton Energy Services, Inc. Bottom hole assembly for directional drilling
JP3516007B2 (ja) * 1997-07-09 2004-04-05 旭精工株式会社 円板体の送出装置
US6039131A (en) 1997-08-25 2000-03-21 Smith International, Inc. Directional drift and drill PDC drill bit
US6213226B1 (en) 1997-12-04 2001-04-10 Halliburton Energy Services, Inc. Directional drilling assembly and method
US6920944B2 (en) 2000-06-27 2005-07-26 Halliburton Energy Services, Inc. Apparatus and method for drilling and reaming a borehole
US6092610A (en) 1998-02-05 2000-07-25 Schlumberger Technology Corporation Actively controlled rotary steerable system and method for drilling wells
US6289999B1 (en) 1998-10-30 2001-09-18 Smith International, Inc. Fluid flow control devices and methods for selective actuation of valves and hydraulic drilling tools
US6378632B1 (en) 1998-10-30 2002-04-30 Smith International, Inc. Remotely operable hydraulic underreamer
GB9825425D0 (en) 1998-11-19 1999-01-13 Andergauge Ltd Downhole tool
US6269892B1 (en) 1998-12-21 2001-08-07 Dresser Industries, Inc. Steerable drilling system and method
BE1012545A3 (fr) 1999-03-09 2000-12-05 Security Dbs Elargisseur de trou de forage.
US6109372A (en) 1999-03-15 2000-08-29 Schlumberger Technology Corporation Rotary steerable well drilling system utilizing hydraulic servo-loop
US6269893B1 (en) 1999-06-30 2001-08-07 Smith International, Inc. Bi-centered drill bit having improved drilling stability mud hydraulics and resistance to cutter damage
JP3881498B2 (ja) * 2000-05-25 2007-02-14 ペンタックス株式会社 光波測距儀
CA2351978C (en) 2001-06-28 2006-03-14 Halliburton Energy Services, Inc. Drilling direction control device
US6470977B1 (en) 2001-09-18 2002-10-29 Halliburton Energy Services, Inc. Steerable underreaming bottom hole assembly and method
US6732817B2 (en) 2002-02-19 2004-05-11 Smith International, Inc. Expandable underreamer/stabilizer
US7036611B2 (en) 2002-07-30 2006-05-02 Baker Hughes Incorporated Expandable reamer apparatus for enlarging boreholes while drilling and methods of use
US6732812B1 (en) 2002-12-19 2004-05-11 Deere & Company Staggered frame element with overlap
GB0309906D0 (en) 2003-04-30 2003-06-04 Andergauge Ltd Downhole tool
US7493971B2 (en) * 2003-05-08 2009-02-24 Smith International, Inc. Concentric expandable reamer and method
GB2421744A (en) 2005-01-04 2006-07-05 Cutting & Wear Resistant Dev Under-reamer or stabiliser with hollow, extendable arms and inclined ribs
US7703551B2 (en) * 2005-06-21 2010-04-27 Bow River Tools And Services Ltd. Fluid driven drilling motor and system
US7753139B2 (en) 2005-07-06 2010-07-13 Smith International, Inc. Cutting device with multiple cutting structures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2322753A3 (en) * 2006-12-04 2014-10-08 Baker Hughes Incorporated Expandable reamers for earth boring applications

Also Published As

Publication number Publication date
NO335118B1 (no) 2014-09-22
CA2723505A1 (en) 2007-07-18
CA2723505C (en) 2014-02-25
US7506703B2 (en) 2009-03-24
US20070163808A1 (en) 2007-07-19
US7597158B2 (en) 2009-10-06
CA2573891A1 (en) 2007-07-18
CA2723064C (en) 2014-02-25
GB2434389A (en) 2007-07-25
NO20140631L (no) 2007-07-19
GB0700998D0 (en) 2007-02-28
CA2723064A1 (en) 2007-07-18
GB2434389B (en) 2009-05-27
NO337905B1 (no) 2016-07-04
US20080245574A1 (en) 2008-10-09
CA2573891C (en) 2011-06-07

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