SE0102373D0 - Drilling tools for lowering drilling - Google Patents

Drilling tools for lowering drilling

Info

Publication number
SE0102373D0
SE0102373D0 SE0102373A SE0102373A SE0102373D0 SE 0102373 D0 SE0102373 D0 SE 0102373D0 SE 0102373 A SE0102373 A SE 0102373A SE 0102373 A SE0102373 A SE 0102373A SE 0102373 D0 SE0102373 D0 SE 0102373D0
Authority
SE
Sweden
Prior art keywords
reamer
drilling
guide body
drill bit
drilling tool
Prior art date
Application number
SE0102373A
Other languages
Swedish (sv)
Other versions
SE0102373L (en
SE522135C2 (en
Inventor
Uno Loef
Original Assignee
Uno Loef
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 Uno Loef filed Critical Uno Loef
Priority to SE0102373A priority Critical patent/SE522135C2/en
Publication of SE0102373D0 publication Critical patent/SE0102373D0/en
Priority to EP02744049A priority patent/EP1402146B1/en
Priority to AT02744049T priority patent/ATE363015T1/en
Priority to CN02813357.9A priority patent/CN1599832A/en
Priority to DE60220277T priority patent/DE60220277D1/en
Priority to PCT/SE2002/001273 priority patent/WO2003004824A1/en
Publication of SE0102373L publication Critical patent/SE0102373L/en
Publication of SE522135C2 publication Critical patent/SE522135C2/en

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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable
    • 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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion
    • 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
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

Abstract

The invention relates to a drilling tool and a method for down-the-hole drilling, the drilling tool being intended to drill a hole ahead of a following casing tube (13). The drilling tool comprises a central pilot drill bit (20), a reamer (33) and a guide body (12) for steering the drilling tool and casing tube relative to one another. To avoid problems with threaded connections, the guide body (12), reamer (33) and pilot drill bit (20) are mutually formed so that the rotational power is transferred from the guide body (12) to the reamer (33) and from the reamer (33) to the pilot drill bit (20), but without either of the two transfers of rotational power comprising any threaded connection, and so that an essentially radial displacement exists between the guide body (12) and the reamer (33). The construction also facilitates retraction of the reamer (33) without the pilot drill bit also needing to rotate.
SE0102373A 2001-07-02 2001-07-02 Drilling tools for lowering drilling SE522135C2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE0102373A SE522135C2 (en) 2001-07-02 2001-07-02 Drilling tools for lowering drilling
EP02744049A EP1402146B1 (en) 2001-07-02 2002-06-27 Earth drilling device
AT02744049T ATE363015T1 (en) 2001-07-02 2002-06-27 EARTH DRILLING DEVICE
CN02813357.9A CN1599832A (en) 2001-07-02 2002-06-27 Earth drilling machine device
DE60220277T DE60220277D1 (en) 2001-07-02 2002-06-27 An earth boring
PCT/SE2002/001273 WO2003004824A1 (en) 2001-07-02 2002-06-27 Earth drilling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0102373A SE522135C2 (en) 2001-07-02 2001-07-02 Drilling tools for lowering drilling

Publications (3)

Publication Number Publication Date
SE0102373D0 true SE0102373D0 (en) 2001-07-02
SE0102373L SE0102373L (en) 2003-01-03
SE522135C2 SE522135C2 (en) 2004-01-13

Family

ID=20284716

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0102373A SE522135C2 (en) 2001-07-02 2001-07-02 Drilling tools for lowering drilling

Country Status (6)

Country Link
EP (1) EP1402146B1 (en)
CN (1) CN1599832A (en)
AT (1) ATE363015T1 (en)
DE (1) DE60220277D1 (en)
SE (1) SE522135C2 (en)
WO (1) WO2003004824A1 (en)

Families Citing this family (21)

* 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
EA007832B1 (en) * 2003-05-21 2007-02-27 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Drill bit and system for drilling the borehole
AT500691B1 (en) 2003-10-08 2008-07-15 Alwag Tunnelausbau Gmbh METHOD AND DEVICE FOR DRILLING HOLES IN SOIL OR ROCK MATERIAL
SE0400929L (en) * 2004-04-07 2005-09-27 Atlas Copco Rotex Ab Oy Device for lowering drilling tools with pilot drill bit, pusher and guide body
KR100685386B1 (en) * 2004-09-03 2007-02-22 임병덕 A drilling apparatus having in-line extending wings and driving method thereof
WO2006112763A1 (en) * 2005-04-21 2006-10-26 Loef Uno Drilling tool and method for down-the-hole drilling
SE0701274L (en) 2007-05-21 2008-05-13 Svenska Borr Ab Device for drilling in soil layers and rock
FI20070540A0 (en) * 2007-07-10 2007-07-10 Robit Rocktools Ltd cutting arrangement
US8066085B2 (en) 2007-08-15 2011-11-29 Schlumberger Technology Corporation Stochastic bit noise control
US8534380B2 (en) 2007-08-15 2013-09-17 Schlumberger Technology Corporation System and method for directional drilling a borehole with a rotary drilling system
US8899352B2 (en) 2007-08-15 2014-12-02 Schlumberger Technology Corporation System and method for drilling
US7971661B2 (en) 2007-08-15 2011-07-05 Schlumberger Technology Corporation Motor bit system
WO2010092314A1 (en) * 2009-02-13 2010-08-19 Schlumberger Technology B.V. Control systems and methods for temporary inhibition of side cutting
SE532471C2 (en) * 2009-02-19 2010-02-02 Sandvik Intellectual Property Start kit, feed pipe and starter rod for drilling equipment for striking rock drilling
EP2339109B1 (en) 2009-12-23 2017-12-20 Lövab Aktiebolag Earth drilling tool and method
IT1404943B1 (en) 2010-06-14 2013-12-09 Soilmec Spa DEVICE AND METHOD OF PERFORATION IN CONSTITUTION OF SOIL.
JP5849671B2 (en) 2011-12-09 2016-02-03 三菱マテリアル株式会社 Drilling tools
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
EP3231980B1 (en) * 2016-04-07 2018-12-12 DSI Underground Austria GmbH Drilling head with a chisel holder and a method of assembling the same
JP6847441B2 (en) * 2016-04-22 2021-03-24 株式会社横山基礎工事 Steel pipe suspension device, method of suspending steel pipes when placing steel pipes, method of placing steel pipes
WO2019018927A1 (en) * 2017-07-24 2019-01-31 Luc Charland Drilling system and method of using same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0511298B1 (en) * 1990-01-17 1994-07-20 Uniroc Aktiebolag Drilling tool for percussive and rotary drilling
SE467632B (en) * 1990-01-17 1992-08-17 Uniroc Ab DRILLING TOOL FOR BATTING AND ROTATING DRILLING WHILE CONDUCTING A FEEDING PIPE
SE503324C2 (en) * 1990-02-19 1996-05-28 Sandvik Ab Drilling tool for lowering drilling, with central pilot crown

Also Published As

Publication number Publication date
EP1402146A1 (en) 2004-03-31
SE0102373L (en) 2003-01-03
CN1599832A (en) 2005-03-23
EP1402146B1 (en) 2007-05-23
WO2003004824A1 (en) 2003-01-16
SE522135C2 (en) 2004-01-13
DE60220277D1 (en) 2007-07-05
ATE363015T1 (en) 2007-06-15

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Legal Events

Date Code Title Description
NUG Patent has lapsed