ZA723865B - Rock drilling - Google Patents

Rock drilling

Info

Publication number
ZA723865B
ZA723865B ZA723865A ZA723865A ZA723865B ZA 723865 B ZA723865 B ZA 723865B ZA 723865 A ZA723865 A ZA 723865A ZA 723865 A ZA723865 A ZA 723865A ZA 723865 B ZA723865 B ZA 723865B
Authority
ZA
South Africa
Prior art keywords
rock drilling
rock
drilling
Prior art date
Application number
ZA723865A
Other languages
English (en)
Inventor
D Hills
Original Assignee
Ransomes & Rapier Ltd
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 Ransomes & Rapier Ltd filed Critical Ransomes & Rapier Ltd
Publication of ZA723865B publication Critical patent/ZA723865B/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
    • 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
    • E21B19/081—Screw-and-nut feed mechanisms
    • 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)
ZA723865A 1971-06-17 1972-06-06 Rock drilling ZA723865B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2852671 1971-06-17

Publications (1)

Publication Number Publication Date
ZA723865B true ZA723865B (en) 1973-07-25

Family

ID=10277035

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA723865A ZA723865B (en) 1971-06-17 1972-06-06 Rock drilling

Country Status (3)

Country Link
DE (1) DE2229471A1 (ref)
FR (1) FR2141990A1 (ref)
ZA (1) ZA723865B (ref)

Also Published As

Publication number Publication date
DE2229471A1 (de) 1972-12-21
FR2141990A1 (ref) 1973-01-26

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