SE7808550L - Insats for en borr - Google Patents

Insats for en borr

Info

Publication number
SE7808550L
SE7808550L SE7808550A SE7808550A SE7808550L SE 7808550 L SE7808550 L SE 7808550L SE 7808550 A SE7808550 A SE 7808550A SE 7808550 A SE7808550 A SE 7808550A SE 7808550 L SE7808550 L SE 7808550L
Authority
SE
Sweden
Prior art keywords
drill
effort
Prior art date
Application number
SE7808550A
Other languages
English (en)
Inventor
C R Harris
G R Herrick
Original Assignee
Smith International
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 Smith International filed Critical Smith International
Publication of SE7808550L publication Critical patent/SE7808550L/sv

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
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
    • E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts

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)
SE7808550A 1977-09-19 1978-08-10 Insats for en borr SE7808550L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83400977A 1977-09-19 1977-09-19

Publications (1)

Publication Number Publication Date
SE7808550L true SE7808550L (sv) 1979-03-20

Family

ID=25265866

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7808550A SE7808550L (sv) 1977-09-19 1978-08-10 Insats for en borr

Country Status (3)

Country Link
DE (1) DE2836474A1 (sv)
FR (1) FR2403446A1 (sv)
SE (1) SE7808550L (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8307010L (sv) * 1983-12-19 1985-06-20 Santrade Ltd Stift for slagborrande borrkrona och borrkrona derfor
SE507098C2 (sv) * 1994-10-12 1998-03-30 Sandvik Ab Stift av hårdmetall och bergborrkrona för slående borrning
CN113153164B (zh) * 2021-04-20 2024-02-23 金沙县仁德钻探工具有限公司 一种四翼平顶八齿钻头

Also Published As

Publication number Publication date
FR2403446A1 (fr) 1979-04-13
DE2836474A1 (de) 1979-03-29

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