ATE108861T1 - Bohrwerkzeug für schlag- und drehbohren. - Google Patents

Bohrwerkzeug für schlag- und drehbohren.

Info

Publication number
ATE108861T1
ATE108861T1 AT91903724T AT91903724T ATE108861T1 AT E108861 T1 ATE108861 T1 AT E108861T1 AT 91903724 T AT91903724 T AT 91903724T AT 91903724 T AT91903724 T AT 91903724T AT E108861 T1 ATE108861 T1 AT E108861T1
Authority
AT
Austria
Prior art keywords
inserts
drilling
reamer
shaft
casing tube
Prior art date
Application number
AT91903724T
Other languages
English (en)
Inventor
Karl-Axel Stjernstroem
Stig Uno Loef
Original Assignee
Uniroc 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
Priority claimed from SE9000156A external-priority patent/SE467632B/sv
Priority claimed from SE9000157A external-priority patent/SE467886B/sv
Application filed by Uniroc Ab filed Critical Uniroc Ab
Application granted granted Critical
Publication of ATE108861T1 publication Critical patent/ATE108861T1/de

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E21B10/32—Drill 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
    • E21B10/327—Drill 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 pivoted about a longitudinal axis
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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

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 Tools (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Drilling And Boring (AREA)
AT91903724T 1990-01-17 1991-01-17 Bohrwerkzeug für schlag- und drehbohren. ATE108861T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9000156A SE467632B (sv) 1990-01-17 1990-01-17 Borrverktyg foer slaaende och roterande borrning under samtidig neddrivning av ett foderroer
SE9000157A SE467886B (sv) 1990-01-17 1990-01-17 Rymmare till borrverktyg foer slaaende och roterande borrning

Publications (1)

Publication Number Publication Date
ATE108861T1 true ATE108861T1 (de) 1994-08-15

Family

ID=26660694

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91903724T ATE108861T1 (de) 1990-01-17 1991-01-17 Bohrwerkzeug für schlag- und drehbohren.

Country Status (8)

Country Link
EP (1) EP0511298B1 (de)
JP (1) JPH05503556A (de)
AT (1) ATE108861T1 (de)
AU (1) AU642708B2 (de)
CA (1) CA2074076A1 (de)
DE (1) DE69102993T2 (de)
FI (1) FI98155C (de)
WO (1) WO1991010805A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2338009B (en) * 1998-06-04 2000-06-21 Philip Head A method of installing the casing in a well and apparatus therefor
US6607046B1 (en) 1999-11-12 2003-08-19 Shell Oil Company Expandable drill bit
SE522135C2 (sv) * 2001-07-02 2004-01-13 Uno Loef Borrverktyg för sänkborrning
ZA200606939B (en) * 2005-08-25 2007-11-28 Gien Bernard L A dril bit
SE530651C2 (sv) * 2005-09-05 2008-07-29 Sandvik Intellectual Property Borrkrona för enstegsankarbultning och en enstegsborrande apparatur
SE530208C2 (sv) * 2007-02-14 2008-04-01 Sandvik Intellectual Property Verktyg
DE102010027544A1 (de) 2010-07-16 2012-01-19 Minova International Ltd. Verfahren zur Herstellung der Bohrvorrichtungen vor allem für die Rohrschirmtechnik und Bohrvorrichtung
JP5994015B1 (ja) * 2015-12-03 2016-09-21 株式会社オーク ダウンザホールハンマー用ビット

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE421551B (sv) * 1980-03-26 1982-01-04 Sandvik Ab Borrverktyg for rotations- och/eller slagborrning
GB8418482D0 (en) * 1984-07-19 1984-08-22 Nl Petroleum Prod Rotary drill bits

Also Published As

Publication number Publication date
FI923240A0 (fi) 1992-07-15
JPH05503556A (ja) 1993-06-10
EP0511298A1 (de) 1992-11-04
AU7228091A (en) 1991-08-05
FI923240A7 (fi) 1992-07-15
AU642708B2 (en) 1993-10-28
WO1991010805A1 (en) 1991-07-25
DE69102993T2 (de) 1995-03-02
FI98155C (fi) 1997-04-25
DE69102993D1 (de) 1994-08-25
CA2074076A1 (en) 1991-07-18
FI98155B (fi) 1997-01-15
EP0511298B1 (de) 1994-07-20

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee