ZA803961B - A drag bit for rotary rock drilling - Google Patents

A drag bit for rotary rock drilling

Info

Publication number
ZA803961B
ZA803961B ZA00803961A ZA803961A ZA803961B ZA 803961 B ZA803961 B ZA 803961B ZA 00803961 A ZA00803961 A ZA 00803961A ZA 803961 A ZA803961 A ZA 803961A ZA 803961 B ZA803961 B ZA 803961B
Authority
ZA
South Africa
Prior art keywords
rock drilling
drag bit
rotary rock
rotary
drag
Prior art date
Application number
ZA00803961A
Other languages
English (en)
Inventor
K Andersson
J Lewkowicz
C Ekwall
Original Assignee
Atlas Copco 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 Atlas Copco Ab filed Critical Atlas Copco Ab
Publication of ZA803961B publication Critical patent/ZA803961B/xx

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
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline 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
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
    • 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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable

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)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Earth Drilling (AREA)
ZA00803961A 1979-07-04 1980-07-02 A drag bit for rotary rock drilling ZA803961B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7905845A SE7905845L (sv) 1979-07-04 1979-07-04 Bergborrkrona for roterande borrning

Publications (1)

Publication Number Publication Date
ZA803961B true ZA803961B (en) 1982-03-31

Family

ID=20338444

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00803961A ZA803961B (en) 1979-07-04 1980-07-02 A drag bit for rotary rock drilling

Country Status (5)

Country Link
EP (1) EP0031355A1 (fr)
JP (1) JPS56501016A (fr)
SE (1) SE7905845L (fr)
WO (1) WO1981000131A1 (fr)
ZA (1) ZA803961B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352400A (en) * 1980-12-01 1982-10-05 Christensen, Inc. Drill bit
EP0084418A3 (fr) * 1982-01-20 1983-08-10 Unicorn Industries Limited Trépan de forage et méthode d'utilisation
CA1194857A (fr) * 1982-02-20 1985-10-08 Nl Industries, Inc. Trepans de forage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US854464A (en) * 1905-05-05 1907-05-21 James Charlton Hydraulic drill.
US829633A (en) * 1905-11-11 1906-08-28 Harry R Decker Drill.
US829634A (en) * 1905-11-13 1906-08-28 Harry R Decker Drill.
US829635A (en) * 1905-11-14 1906-08-28 Harry R Decker Drill.
US2951683A (en) * 1957-07-16 1960-09-06 Village Of Deming Core drill
US3745623A (en) * 1971-12-27 1973-07-17 Gen Electric Diamond tools for machining
US3765496A (en) * 1971-12-27 1973-10-16 M Flores Drill head unit with throwaway insert holders

Also Published As

Publication number Publication date
SE7905845L (sv) 1981-01-05
EP0031355A1 (fr) 1981-07-08
JPS56501016A (fr) 1981-07-23
WO1981000131A1 (fr) 1981-01-22

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