AU603721B2 - Rock drilling device - Google Patents

Rock drilling device Download PDF

Info

Publication number
AU603721B2
AU603721B2 AU26539/88A AU2653988A AU603721B2 AU 603721 B2 AU603721 B2 AU 603721B2 AU 26539/88 A AU26539/88 A AU 26539/88A AU 2653988 A AU2653988 A AU 2653988A AU 603721 B2 AU603721 B2 AU 603721B2
Authority
AU
Australia
Prior art keywords
pressure
rock drilling
drill string
liquid
pressure chamber
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
AU26539/88A
Other languages
English (en)
Other versions
AU2653988A (en
Inventor
Bjorn Sigurd Akre
Eskil Torsten Emanuel Lidstrand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco AB
Original Assignee
Atlas Copco 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 Atlas Copco AB filed Critical Atlas Copco AB
Publication of AU2653988A publication Critical patent/AU2653988A/en
Application granted granted Critical
Publication of AU603721B2 publication Critical patent/AU603721B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods

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)
AU26539/88A 1987-12-03 1988-12-02 Rock drilling device Ceased AU603721B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8704841 1987-12-03
SE8704841A SE456920B (sv) 1987-12-03 1987-12-03 Bergborrningsanordning innefattande en matningsanordning i vilken en tryckkammare ingaar

Publications (2)

Publication Number Publication Date
AU2653988A AU2653988A (en) 1989-06-08
AU603721B2 true AU603721B2 (en) 1990-11-22

Family

ID=20370492

Family Applications (1)

Application Number Title Priority Date Filing Date
AU26539/88A Ceased AU603721B2 (en) 1987-12-03 1988-12-02 Rock drilling device

Country Status (3)

Country Link
AU (1) AU603721B2 (sv)
FI (1) FI885605A (sv)
SE (1) SE456920B (sv)

Also Published As

Publication number Publication date
AU2653988A (en) 1989-06-08
SE8704841D0 (sv) 1987-12-03
SE456920B (sv) 1988-11-14
FI885605A0 (fi) 1988-12-01
FI885605A (fi) 1989-06-04

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