AT313832B - Drilling device for drilling in the ground and / or rock - Google Patents

Drilling device for drilling in the ground and / or rock

Info

Publication number
AT313832B
AT313832B AT824971A AT824971A AT313832B AT 313832 B AT313832 B AT 313832B AT 824971 A AT824971 A AT 824971A AT 824971 A AT824971 A AT 824971A AT 313832 B AT313832 B AT 313832B
Authority
AT
Austria
Prior art keywords
drilling
rock
ground
drilling device
Prior art date
Application number
AT824971A
Other languages
German (de)
Inventor
Henrick Svanstroem Alf
Original Assignee
Fagersta Bruks 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 Fagersta Bruks Ab filed Critical Fagersta Bruks Ab
Application granted granted Critical
Publication of AT313832B publication Critical patent/AT313832B/en

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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe

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)
AT824971A 1970-09-25 1971-09-23 Drilling device for drilling in the ground and / or rock AT313832B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1310270A SE346355B (en) 1970-09-25 1970-09-25

Publications (1)

Publication Number Publication Date
AT313832B true AT313832B (en) 1974-03-11

Family

ID=20296833

Family Applications (1)

Application Number Title Priority Date Filing Date
AT824971A AT313832B (en) 1970-09-25 1971-09-23 Drilling device for drilling in the ground and / or rock

Country Status (3)

Country Link
AT (1) AT313832B (en)
DE (1) DE2144295A1 (en)
SE (1) SE346355B (en)

Also Published As

Publication number Publication date
SE346355B (en) 1972-07-03
DE2144295A1 (en) 1972-03-30

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Legal Events

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