AU7148474A - Drop bit drilling machine - Google Patents

Drop bit drilling machine

Info

Publication number
AU7148474A
AU7148474A AU71484/74A AU7148474A AU7148474A AU 7148474 A AU7148474 A AU 7148474A AU 71484/74 A AU71484/74 A AU 71484/74A AU 7148474 A AU7148474 A AU 7148474A AU 7148474 A AU7148474 A AU 7148474A
Authority
AU
Australia
Prior art keywords
drilling machine
bit drilling
drop bit
drop
machine
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.)
Expired
Application number
AU71484/74A
Inventor
Leonardo Alessandro As Crabbia
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.)
Crabbia L A A
Original Assignee
Crabbia L A A
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 Crabbia L A A filed Critical Crabbia L A A
Priority to AU71484/74A priority Critical patent/AU7148474A/en
Publication of AU7148474A publication Critical patent/AU7148474A/en
Expired 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
    • E21B1/00—Percussion drilling
    • E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable
    • E21B1/04—Devices for reversing the movement of the rod or cable at the surface

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)
AU71484/74A 1974-07-22 1974-07-22 Drop bit drilling machine Expired AU7148474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU71484/74A AU7148474A (en) 1974-07-22 1974-07-22 Drop bit drilling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU71484/74A AU7148474A (en) 1974-07-22 1974-07-22 Drop bit drilling machine

Publications (1)

Publication Number Publication Date
AU7148474A true AU7148474A (en) 1976-01-22

Family

ID=3754340

Family Applications (1)

Application Number Title Priority Date Filing Date
AU71484/74A Expired AU7148474A (en) 1974-07-22 1974-07-22 Drop bit drilling machine

Country Status (1)

Country Link
AU (1) AU7148474A (en)

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