DE69822645D1 - Bohrwerkzeug bestehend aus grundkörper und räumer - Google Patents

Bohrwerkzeug bestehend aus grundkörper und räumer

Info

Publication number
DE69822645D1
DE69822645D1 DE69822645T DE69822645T DE69822645D1 DE 69822645 D1 DE69822645 D1 DE 69822645D1 DE 69822645 T DE69822645 T DE 69822645T DE 69822645 T DE69822645 T DE 69822645T DE 69822645 D1 DE69822645 D1 DE 69822645D1
Authority
DE
Germany
Prior art keywords
space
drilling tool
constructing base
tool constructing
base
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
DE69822645T
Other languages
English (en)
Inventor
Bengt Asberg
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.)
Sandvik AB
Original Assignee
Sandvik AB
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 Sandvik AB filed Critical Sandvik AB
Application granted granted Critical
Publication of DE69822645D1 publication Critical patent/DE69822645D1/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
    • 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
    • E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives
    • 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

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)
DE69822645T 1997-08-08 1998-07-28 Bohrwerkzeug bestehend aus grundkörper und räumer Expired - Lifetime DE69822645D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9702898A SE512383C3 (sv) 1997-08-08 1997-08-08 Borrverktyg foer att borra ett haal framfoer ett foderroer rymmarorgan och baselement foer anvaendning i borrverktyget
PCT/SE1998/001418 WO1999007977A1 (en) 1997-08-08 1998-07-28 Drilling tool for down-the-hole drilling, reamer means and body element for use in the tool

Publications (1)

Publication Number Publication Date
DE69822645D1 true DE69822645D1 (de) 2004-04-29

Family

ID=20407897

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69822645T Expired - Lifetime DE69822645D1 (de) 1997-08-08 1998-07-28 Bohrwerkzeug bestehend aus grundkörper und räumer

Country Status (8)

Country Link
US (1) US6076618A (de)
EP (1) EP1012436B1 (de)
JP (1) JP4091249B2 (de)
AU (1) AU8565198A (de)
CA (1) CA2298656C (de)
DE (1) DE69822645D1 (de)
SE (1) SE512383C3 (de)
WO (1) WO1999007977A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6607046B1 (en) * 1999-11-12 2003-08-19 Shell Oil Company Expandable drill bit
GB0009834D0 (en) * 2000-04-25 2000-06-07 Brit Bit Limited Expandable bit
GB2365888B (en) * 2000-08-11 2002-07-24 Renovus Ltd Drilling apparatus
SE519312C2 (sv) * 2001-06-26 2003-02-11 Sandvik Ab Bergborrverktyg för slående borrning samt ringborrkrona och borradapter avsedda att ingå i borrverktyget
US7775287B2 (en) 2006-12-12 2010-08-17 Baker Hughes Incorporated Methods of attaching a shank to a body of an earth-boring drilling tool, and tools formed by such methods
FI20070540A0 (fi) * 2007-07-10 2007-07-10 Robit Rocktools Ltd Teräsovitelma
CN102226376B (zh) * 2011-05-31 2013-10-02 廊坊华元机电工程有限公司 互锁式对接钻头
US10301880B2 (en) * 2015-09-25 2019-05-28 Radius Hdd Direct, Llc Over-bit reamer
GB2569330B (en) 2017-12-13 2021-01-06 Nov Downhole Eurasia Ltd Downhole devices and associated apparatus and methods
SE543092C2 (en) * 2018-05-21 2020-10-06 Epiroc Rock Drills Ab System for drill bit change in a drilling rig, drilling rig comprising such a system, and a method for changing drill bits using such a system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416616A (en) * 1967-03-01 1968-12-17 Skanska Cementgjuteriet Ab Deep drills with eccentric bits
SE8901199L (sv) * 1989-04-05 1990-10-06 Uniroc Ab Excentrisk borrkrona
SE8901200L (sv) * 1989-04-05 1990-10-06 Uniroc Ab Anordning foer spolning av en borrkrona
SE467632B (sv) * 1990-01-17 1992-08-17 Uniroc Ab Borrverktyg foer slaaende och roterande borrning under samtidig neddrivning av ett foderroer
SE503324C2 (sv) * 1990-02-19 1996-05-28 Sandvik Ab Borrverktyg för sänkborrning, med central pilotkrona
US5009271A (en) * 1990-07-16 1991-04-23 Milan Maric Drill assembly

Also Published As

Publication number Publication date
CA2298656C (en) 2006-11-14
CA2298656A1 (en) 1999-02-18
EP1012436B1 (de) 2004-03-24
SE512383C2 (sv) 2000-03-06
WO1999007977A1 (en) 1999-02-18
US6076618A (en) 2000-06-20
SE9702898D0 (sv) 1997-08-08
EP1012436A1 (de) 2000-06-28
AU8565198A (en) 1999-03-01
JP4091249B2 (ja) 2008-05-28
JP2001512799A (ja) 2001-08-28
SE9702898L (sv) 1999-02-09
SE512383C3 (sv) 2000-04-03

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Legal Events

Date Code Title Description
8332 No legal effect for de