SE8802647D0 - Borrstang - Google Patents

Borrstang

Info

Publication number
SE8802647D0
SE8802647D0 SE8802647A SE8802647A SE8802647D0 SE 8802647 D0 SE8802647 D0 SE 8802647D0 SE 8802647 A SE8802647 A SE 8802647A SE 8802647 A SE8802647 A SE 8802647A SE 8802647 D0 SE8802647 D0 SE 8802647D0
Authority
SE
Sweden
Prior art keywords
drilling rod
drilling
rod
assembly
drill crown
Prior art date
Application number
SE8802647A
Other languages
English (en)
Other versions
SE469848B (sv
SE8802647L (sv
Inventor
P Nava
Original Assignee
Sandvik 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 Sandvik Ab filed Critical Sandvik Ab
Priority to SE8802647A priority Critical patent/SE469848B/sv
Publication of SE8802647D0 publication Critical patent/SE8802647D0/sv
Publication of SE8802647L publication Critical patent/SE8802647L/sv
Publication of SE469848B publication Critical patent/SE469848B/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
    • 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
    • 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
    • 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

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)
SE8802647A 1988-07-15 1988-07-15 Borrstång och borrstångskomponent där borrsträngen innefattar en central stångsats och omgivande rör SE469848B (sv)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8802647A SE469848B (sv) 1988-07-15 1988-07-15 Borrstång och borrstångskomponent där borrsträngen innefattar en central stångsats och omgivande rör

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8802647A SE469848B (sv) 1988-07-15 1988-07-15 Borrstång och borrstångskomponent där borrsträngen innefattar en central stångsats och omgivande rör

Publications (3)

Publication Number Publication Date
SE8802647D0 true SE8802647D0 (sv) 1988-07-15
SE8802647L SE8802647L (sv) 1990-01-16
SE469848B SE469848B (sv) 1993-09-27

Family

ID=20372921

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8802647A SE469848B (sv) 1988-07-15 1988-07-15 Borrstång och borrstångskomponent där borrsträngen innefattar en central stångsats och omgivande rör

Country Status (1)

Country Link
SE (1) SE469848B (sv)

Also Published As

Publication number Publication date
SE469848B (sv) 1993-09-27
SE8802647L (sv) 1990-01-16

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