EP0799966A3 - Bohrkrone für das schlagende Bohren - Google Patents

Bohrkrone für das schlagende Bohren Download PDF

Info

Publication number
EP0799966A3
EP0799966A3 EP97104925A EP97104925A EP0799966A3 EP 0799966 A3 EP0799966 A3 EP 0799966A3 EP 97104925 A EP97104925 A EP 97104925A EP 97104925 A EP97104925 A EP 97104925A EP 0799966 A3 EP0799966 A3 EP 0799966A3
Authority
EP
European Patent Office
Prior art keywords
drill bit
drilling
flushing
percussive drilling
distance
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.)
Withdrawn
Application number
EP97104925A
Other languages
English (en)
French (fr)
Other versions
EP0799966A2 (de
Inventor
Jürgen Dipl.-Ing. Schmeer
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.)
GEISERT ENGINEERING GmbH
Original Assignee
GEISERT ENGINEERING GmbH
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 DE19619194A external-priority patent/DE19619194A1/de
Application filed by GEISERT ENGINEERING GmbH filed Critical GEISERT ENGINEERING GmbH
Publication of EP0799966A2 publication Critical patent/EP0799966A2/de
Publication of EP0799966A3 publication Critical patent/EP0799966A3/de
Withdrawn legal-status Critical Current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
    • 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
    • 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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

Abstract

Bei einer Bohrkrone für das schlagende Horizontalbohren mittels Imlochhammers mit an einer in Vortriebsrichtung weisenden Stirnfläche angeordnetem Kronenbesatz (44) sowie mit in Abstand zur Bohrkronenachse (A) angeordneten Spüldurchgängen an einer Bohrscheibe der Bohrkrone, sind die Spüldurchgänge von Spülkanälen (46) gebildet, die innerhalb der Bohrscheibe (36) in Abstand (z) zu deren Umfangsfläche (42) verlaufen. Stattdessen können die Spülkanäle (46) am Übergang vom Zentralabschnitt (40z) zum Kegelringabschnitt (40k) der Stirnfläche (40) angeordnet sein.
EP97104925A 1996-04-02 1997-03-22 Bohrkrone für das schlagende Bohren Withdrawn EP0799966A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19613140 1996-04-02
DE19613140 1996-04-02
DE19619194 1996-05-11
DE19619194A DE19619194A1 (de) 1996-04-02 1996-05-11 Bohrkrone für das schlagende Bohren

Publications (2)

Publication Number Publication Date
EP0799966A2 EP0799966A2 (de) 1997-10-08
EP0799966A3 true EP0799966A3 (de) 1999-02-03

Family

ID=26024411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104925A Withdrawn EP0799966A3 (de) 1996-04-02 1997-03-22 Bohrkrone für das schlagende Bohren

Country Status (1)

Country Link
EP (1) EP0799966A3 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUP0102559A3 (en) 1998-03-13 2001-12-28 Procter & Gamble Absorbent structures comprising fluid storage members with improved ability to dewater distribution members
US6713661B1 (en) 1998-04-28 2004-03-30 The Procter & Gamble Company Absorbent articles providing improved fit when wet
JP3686383B2 (ja) 2002-02-22 2005-08-24 本田技研工業株式会社 プラントの制御装置
FR2844312B1 (fr) 2002-09-05 2006-04-28 Centre Nat Rech Scient Machine tournante a capsulisme

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2824958A1 (de) * 1978-06-07 1979-12-13 Willi Wader Fa Bohrstange mit angeschmiedeter bohrkrone mit mehr als vier schneiden zum anstechen von hochoefen
EP0122103A1 (de) * 1983-04-06 1984-10-17 Hughes Douglas Harrison Tunnelbohrmaschine
EP0324150A1 (de) * 1988-01-12 1989-07-19 Hawera Probst GmbH + Co. Bohrwerkzeug
WO1994024405A1 (en) * 1993-04-08 1994-10-27 Sandvik Ab Down-hole hammer drill having reverse circulation and drill bit for the hammer drill
DE4326000A1 (de) * 1993-08-03 1995-02-09 Srt Rock Tools Handels Und Pro Stiftbohrkrone für das schlagende Bohren

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2824958A1 (de) * 1978-06-07 1979-12-13 Willi Wader Fa Bohrstange mit angeschmiedeter bohrkrone mit mehr als vier schneiden zum anstechen von hochoefen
EP0122103A1 (de) * 1983-04-06 1984-10-17 Hughes Douglas Harrison Tunnelbohrmaschine
EP0324150A1 (de) * 1988-01-12 1989-07-19 Hawera Probst GmbH + Co. Bohrwerkzeug
WO1994024405A1 (en) * 1993-04-08 1994-10-27 Sandvik Ab Down-hole hammer drill having reverse circulation and drill bit for the hammer drill
DE4326000A1 (de) * 1993-08-03 1995-02-09 Srt Rock Tools Handels Und Pro Stiftbohrkrone für das schlagende Bohren

Also Published As

Publication number Publication date
EP0799966A2 (de) 1997-10-08

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