AU473412B2 - Drill apparatus - Google Patents

Drill apparatus

Info

Publication number
AU473412B2
AU473412B2 AU67218/74A AU6721874A AU473412B2 AU 473412 B2 AU473412 B2 AU 473412B2 AU 67218/74 A AU67218/74 A AU 67218/74A AU 6721874 A AU6721874 A AU 6721874A AU 473412 B2 AU473412 B2 AU 473412B2
Authority
AU
Australia
Prior art keywords
drill apparatus
drill
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
AU67218/74A
Other versions
AU6721874A (en
Inventor
Ernest Bowles Raymond
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.)
Mandrill Ltd
Original Assignee
Mandrill 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 Mandrill Ltd filed Critical Mandrill Ltd
Priority to AU67218/74A priority Critical patent/AU473412B2/en
Publication of AU6721874A publication Critical patent/AU6721874A/en
Application granted granted Critical
Publication of AU473412B2 publication Critical patent/AU473412B2/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
    • E21B10/00—Drill bits
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable

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)
AU67218/74A 1974-03-27 1974-03-27 Drill apparatus Expired AU473412B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU67218/74A AU473412B2 (en) 1974-03-27 1974-03-27 Drill apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU67218/74A AU473412B2 (en) 1974-03-27 1974-03-27 Drill apparatus

Publications (2)

Publication Number Publication Date
AU6721874A AU6721874A (en) 1975-10-02
AU473412B2 true AU473412B2 (en) 1976-06-24

Family

ID=3751547

Family Applications (1)

Application Number Title Priority Date Filing Date
AU67218/74A Expired AU473412B2 (en) 1974-03-27 1974-03-27 Drill apparatus

Country Status (1)

Country Link
AU (1) AU473412B2 (en)

Also Published As

Publication number Publication date
AU6721874A (en) 1975-10-02

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