FI932142A0 - Stenborrkrona - Google Patents

Stenborrkrona

Info

Publication number
FI932142A0
FI932142A0 FI932142A FI932142A FI932142A0 FI 932142 A0 FI932142 A0 FI 932142A0 FI 932142 A FI932142 A FI 932142A FI 932142 A FI932142 A FI 932142A FI 932142 A0 FI932142 A0 FI 932142A0
Authority
FI
Finland
Prior art keywords
stenborrkrona
Prior art date
Application number
FI932142A
Other languages
English (en)
Other versions
FI932142A (fi
Inventor
Bernd Broeker
Rolf Schoeneweiss
Michael Agricola
Original Assignee
Hausherr & Soehne Rudolf
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 Hausherr & Soehne Rudolf filed Critical Hausherr & Soehne Rudolf
Publication of FI932142A0 publication Critical patent/FI932142A0/fi
Publication of FI932142A publication Critical patent/FI932142A/fi

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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • 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
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • E21B17/076—Telescoping joints for varying drill string lengths; Shock absorbers between rod or pipe and drill bit

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
FI932142A 1991-09-13 1993-05-12 Stenborrkrona FI932142A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4130528 1991-09-13
DE19924200580 DE4200580A1 (de) 1991-09-13 1992-01-11 Gesteinsbohrkrone

Publications (2)

Publication Number Publication Date
FI932142A0 true FI932142A0 (fi) 1993-05-12
FI932142A FI932142A (fi) 1993-05-12

Family

ID=25907312

Family Applications (1)

Application Number Title Priority Date Filing Date
FI932142A FI932142A (fi) 1991-09-13 1993-05-12 Stenborrkrona

Country Status (4)

Country Link
EP (1) EP0557485A1 (fi)
DE (1) DE4200580A1 (fi)
FI (1) FI932142A (fi)
WO (1) WO1993006332A1 (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5803192A (en) * 1996-05-13 1998-09-08 Holte; Ardis L. Drill bit retainer for a down hole hammer assembly
SE523946C2 (sv) * 2001-12-21 2004-06-08 Atlas Copco Secoroc Ab Sänkborrhammare där ytterröret helt omsluter en medbringare
AR044550A1 (es) 2003-05-26 2005-09-21 Shell Int Research Cabeza de perforacion y sistema y metodo para perforar un pozo de perforacion en una formacion de tierra
AR044485A1 (es) * 2003-06-12 2005-09-14 Shell Int Research Mecha perforadora con percusion, sistema de perforacion que incluye dicha mecha perforadora y un metodo para perforar un pozo
US7455126B2 (en) 2004-05-25 2008-11-25 Shell Oil Company Percussive drill bit, drilling system comprising such a drill bit and method of drilling a bore hole
ES2662932T3 (es) * 2015-02-19 2018-04-10 Sandvik Intellectual Property Ab Barrena de perforación para el transporte mejorado de detritos

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1181428A (en) * 1967-11-28 1970-02-18 Padley & Venables Ltd Improvements in or relating to Percussive Drill Bits
AT345759B (de) * 1975-03-22 1978-10-10 Walter Gmbh Co H P Tieflochbohrhammer
US4098352A (en) * 1976-12-17 1978-07-04 Kennametal Inc. Percussion bit with bypass channel therein
DE2854461C2 (de) * 1978-12-16 1983-03-10 Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz Versenkbohrhammer
DE8025800U1 (de) * 1980-09-26 1981-02-05 Hawera Probst Gmbh + Co, 7980 Ravensburg Bohrer
SE8501698L (sv) * 1985-04-04 1986-10-05 Santrade Ltd Borrkrona
DE3905106C2 (de) * 1989-02-20 1994-08-11 Fritz Zimmermann Masch U Appar Tiefloch-Bohrhammer mit Wasserspüleinrichtung

Also Published As

Publication number Publication date
EP0557485A1 (de) 1993-09-01
WO1993006332A1 (de) 1993-04-01
DE4200580A1 (de) 1993-03-18
FI932142A (fi) 1993-05-12

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Legal Events

Date Code Title Description
FD Application lapsed