SE7601187L - Anordning vid bergborrkrona - Google Patents

Anordning vid bergborrkrona

Info

Publication number
SE7601187L
SE7601187L SE7601187A SE7601187A SE7601187L SE 7601187 L SE7601187 L SE 7601187L SE 7601187 A SE7601187 A SE 7601187A SE 7601187 A SE7601187 A SE 7601187A SE 7601187 L SE7601187 L SE 7601187L
Authority
SE
Sweden
Prior art keywords
drill crown
mountain drill
mountain
crown
drill
Prior art date
Application number
SE7601187A
Other languages
English (en)
Swedish (sv)
Inventor
Jr G C Jackson
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Publication of SE7601187L publication Critical patent/SE7601187L/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
    • E21B10/08—Roller bits
    • E21B10/18—Roller 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems

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)
SE7601187A 1975-02-18 1976-02-04 Anordning vid bergborrkrona SE7601187L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55078275A 1975-02-18 1975-02-18

Publications (1)

Publication Number Publication Date
SE7601187L true SE7601187L (sv) 1976-08-19

Family

ID=24198547

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7601187A SE7601187L (sv) 1975-02-18 1976-02-04 Anordning vid bergborrkrona

Country Status (4)

Country Link
DE (1) DE2606712A1 (de)
FR (1) FR2301680A1 (de)
NO (1) NO760008L (de)
SE (1) SE7601187L (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687067A (en) * 1986-05-01 1987-08-18 Smith International, Inc. Crossflow rotary cone rock bit with extended nozzles

Also Published As

Publication number Publication date
NO760008L (de) 1976-08-19
FR2301680A1 (fr) 1976-09-17
DE2606712A1 (de) 1976-08-19

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