SE406623B - Anordning vid borrning - Google Patents

Anordning vid borrning

Info

Publication number
SE406623B
SE406623B SE7700192A SE7700192A SE406623B SE 406623 B SE406623 B SE 406623B SE 7700192 A SE7700192 A SE 7700192A SE 7700192 A SE7700192 A SE 7700192A SE 406623 B SE406623 B SE 406623B
Authority
SE
Sweden
Prior art keywords
drilling device
drilling
Prior art date
Application number
SE7700192A
Other languages
English (en)
Other versions
SE7700192L (sv
Inventor
S U Lof
Original Assignee
Lofs Verkstads 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 Lofs Verkstads Ab filed Critical Lofs Verkstads Ab
Priority to SE7700192A priority Critical patent/SE406623B/sv
Priority to NO774351A priority patent/NO149180C/no
Priority to FI780018A priority patent/FI67124C/fi
Publication of SE7700192L publication Critical patent/SE7700192L/sv
Publication of SE406623B publication Critical patent/SE406623B/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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
SE7700192A 1977-01-11 1977-01-11 Anordning vid borrning SE406623B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE7700192A SE406623B (sv) 1977-01-11 1977-01-11 Anordning vid borrning
NO774351A NO149180C (no) 1977-01-11 1977-12-16 Anordning ved boreutstyr
FI780018A FI67124C (fi) 1977-01-11 1978-01-04 Anordning vid borrning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7700192A SE406623B (sv) 1977-01-11 1977-01-11 Anordning vid borrning

Publications (2)

Publication Number Publication Date
SE7700192L SE7700192L (sv) 1978-07-12
SE406623B true SE406623B (sv) 1979-02-19

Family

ID=20330142

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7700192A SE406623B (sv) 1977-01-11 1977-01-11 Anordning vid borrning

Country Status (3)

Country Link
FI (1) FI67124C (sv)
NO (1) NO149180C (sv)
SE (1) SE406623B (sv)

Also Published As

Publication number Publication date
FI780018A (fi) 1978-07-12
FI67124B (fi) 1984-09-28
NO149180B (no) 1983-11-21
SE7700192L (sv) 1978-07-12
NO149180C (no) 1984-02-29
FI67124C (fi) 1985-01-10
NO774351L (no) 1978-07-12

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