ATE363015T1 - EARTH DRILLING DEVICE - Google Patents

EARTH DRILLING DEVICE

Info

Publication number
ATE363015T1
ATE363015T1 AT02744049T AT02744049T ATE363015T1 AT E363015 T1 ATE363015 T1 AT E363015T1 AT 02744049 T AT02744049 T AT 02744049T AT 02744049 T AT02744049 T AT 02744049T AT E363015 T1 ATE363015 T1 AT E363015T1
Authority
AT
Austria
Prior art keywords
reamer
guide body
drill bit
drilling tool
pilot drill
Prior art date
Application number
AT02744049T
Other languages
German (de)
Inventor
Uno Loef
Original Assignee
Ticc Handelsbolag
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 Ticc Handelsbolag filed Critical Ticc Handelsbolag
Application granted granted Critical
Publication of ATE363015T1 publication Critical patent/ATE363015T1/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
    • E21B10/26—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
    • E21B10/64—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
    • E21B10/36—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.
AT02744049T 2001-07-02 2002-06-27 EARTH DRILLING DEVICE ATE363015T1 (en)

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 (1)

Publication Number Publication Date
ATE363015T1 true ATE363015T1 (en) 2007-06-15

Family

ID=20284716

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02744049T ATE363015T1 (en) 2001-07-02 2002-06-27 EARTH DRILLING DEVICE

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
CN1791732B (en) * 2003-05-21 2010-09-08 国际壳牌研究有限公司 Drill bit and drilling system with underreamer- and stabilization-section
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
US8727036B2 (en) 2007-08-15 2014-05-20 Schlumberger Technology Corporation System and method for drilling
US20100038141A1 (en) 2007-08-15 2010-02-18 Schlumberger Technology Corporation Compliantly coupled gauge pad system with movable gauge pads
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
WO2010092314A1 (en) * 2009-02-13 2010-08-19 Schlumberger Technology B.V. Control systems and methods for temporary inhibition of side cutting
SE0900215L (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
SE467632B (en) * 1990-01-17 1992-08-17 Uniroc Ab DRILLING TOOL FOR BATTING AND ROTATING DRILLING WHILE CONDUCTING A FEEDING PIPE
AU642708B2 (en) * 1990-01-17 1993-10-28 Uniroc Aktiebolag Drilling tool for percussive and rotary drilling
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
CN1599832A (en) 2005-03-23
EP1402146A1 (en) 2004-03-31
DE60220277D1 (en) 2007-07-05
SE0102373L (en) 2003-01-03
WO2003004824A1 (en) 2003-01-16
SE522135C2 (en) 2004-01-13
EP1402146B1 (en) 2007-05-23
SE0102373D0 (en) 2001-07-02

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties