AU7056874A - Borehole hammer drill - Google Patents

Borehole hammer drill

Info

Publication number
AU7056874A
AU7056874A AU70568/74A AU7056874A AU7056874A AU 7056874 A AU7056874 A AU 7056874A AU 70568/74 A AU70568/74 A AU 70568/74A AU 7056874 A AU7056874 A AU 7056874A AU 7056874 A AU7056874 A AU 7056874A
Authority
AU
Australia
Prior art keywords
hammer drill
borehole
borehole hammer
drill
hammer
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
AU70568/74A
Other versions
AU479248B2 (en
Inventor
Theodore James Roscoe, Jr
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.)
Bakerdrill Inc
Original Assignee
Bakerdrill Inc
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 Bakerdrill Inc filed Critical Bakerdrill Inc
Application granted granted Critical
Publication of AU479248B2 publication Critical patent/AU479248B2/en
Publication of AU7056874A publication Critical patent/AU7056874A/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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers

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)
AU70568/74A 1973-08-10 1974-06-27 Borehole hammer drill Expired AU479248B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US387481A US3896886A (en) 1973-08-10 1973-08-10 Bore hole hammer drill
USUS387481 1973-08-10

Publications (2)

Publication Number Publication Date
AU479248B2 AU479248B2 (en) 1976-01-08
AU7056874A true AU7056874A (en) 1976-01-08

Family

ID=

Also Published As

Publication number Publication date
US3896886A (en) 1975-07-29
GB1445502A (en) 1976-08-11
CA1016429A (en) 1977-08-30
JPS5039602A (en) 1975-04-11

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