ATA401184A - Bohrkrone - Google Patents

Bohrkrone

Info

Publication number
ATA401184A
ATA401184A AT401184A AT401184A ATA401184A AT A401184 A ATA401184 A AT A401184A AT 401184 A AT401184 A AT 401184A AT 401184 A AT401184 A AT 401184A AT A401184 A ATA401184 A AT A401184A
Authority
AT
Austria
Prior art keywords
purification
aqueous solutions
tertiary amine
amine oxides
oxides
Prior art date
Application number
AT401184A
Other languages
English (en)
Other versions
AT381769B (de
Inventor
Kurt Dipl Ing Hoelzl
Original Assignee
Ver Edelstahlwerke Ag
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 Ver Edelstahlwerke Ag filed Critical Ver Edelstahlwerke Ag
Priority to AT0401184A priority Critical patent/AT381769B/de
Priority to EP85890311A priority patent/EP0189024A1/de
Publication of ATA401184A publication Critical patent/ATA401184A/de
Application granted granted Critical
Publication of AT381769B publication Critical patent/AT381769B/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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-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
    • E21B10/46—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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids

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)
AT0401184A 1984-12-18 1984-12-18 Bohrkrone AT381769B (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT0401184A AT381769B (de) 1984-12-18 1984-12-18 Bohrkrone
EP85890311A EP0189024A1 (de) 1984-12-18 1985-12-13 Bohrkrone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0401184A AT381769B (de) 1984-12-18 1984-12-18 Bohrkrone

Publications (2)

Publication Number Publication Date
ATA401184A true ATA401184A (de) 1986-04-15
AT381769B AT381769B (de) 1986-11-25

Family

ID=3558439

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0401184A AT381769B (de) 1984-12-18 1984-12-18 Bohrkrone

Country Status (2)

Country Link
EP (1) EP0189024A1 (de)
AT (1) AT381769B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2099712T3 (es) * 1989-07-21 1997-06-01 Australian Stone Tech Procedimiento y aparato para el corte de materiales erosivos utilizando un medio de agua de alta presion.
DE19844820A1 (de) * 1998-09-30 2000-04-13 Holzmann Philipp Ag Bohrspitze für ein Bohrrohr

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3118511A (en) * 1960-09-29 1964-01-21 Casimir T Kay Rotary drill bits
DD122704A1 (de) * 1975-10-29 1976-10-20
DE2649323A1 (de) * 1975-12-25 1977-07-07 Furukawa Co Bohrerspitzenkonstruktion
DE2718920A1 (de) * 1977-04-28 1978-11-09 Wallram Hartmetall Gmbh Gesteinsbohrkrone
DE2813142C3 (de) * 1978-03-25 1986-07-31 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Kombiniertes Schneidwerkzeug zum Schneiden von an einer bergmännischen Arbeitsfläche anstehendem Mineral
FR2450936A1 (fr) * 1979-03-08 1980-10-03 Cagnioncle Georges Nouvelle foreuse rotative a taillant protege par un film fluide a tres haute pression
FR2538442B1 (fr) * 1982-12-23 1986-02-28 Charbonnages De France Taillant pour foration rotative assistee par jet

Also Published As

Publication number Publication date
AT381769B (de) 1986-11-25
EP0189024A1 (de) 1986-07-30

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
ELJ Ceased due to non-payment of the annual fee