AU454109B2 - Expandable percussion drill bit - Google Patents

Expandable percussion drill bit

Info

Publication number
AU454109B2
AU454109B2 AU59739/69A AU5973969A AU454109B2 AU 454109 B2 AU454109 B2 AU 454109B2 AU 59739/69 A AU59739/69 A AU 59739/69A AU 5973969 A AU5973969 A AU 5973969A AU 454109 B2 AU454109 B2 AU 454109B2
Authority
AU
Australia
Prior art keywords
expandable
drill bit
percussion drill
percussion
bit
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
AU59739/69A
Other versions
AU5973969A (en
Inventor
Eugene Bardwell Allen
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 filed Critical
Priority to AU59739/69A priority Critical patent/AU454109B2/en
Publication of AU5973969A publication Critical patent/AU5973969A/en
Application granted granted Critical
Publication of AU454109B2 publication Critical patent/AU454109B2/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
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion
    • 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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable

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)
AU59739/69A 1969-08-20 1969-08-20 Expandable percussion drill bit Expired AU454109B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU59739/69A AU454109B2 (en) 1969-08-20 1969-08-20 Expandable percussion drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU59739/69A AU454109B2 (en) 1969-08-20 1969-08-20 Expandable percussion drill bit

Publications (2)

Publication Number Publication Date
AU5973969A AU5973969A (en) 1971-02-25
AU454109B2 true AU454109B2 (en) 1974-10-04

Family

ID=3744977

Family Applications (1)

Application Number Title Priority Date Filing Date
AU59739/69A Expired AU454109B2 (en) 1969-08-20 1969-08-20 Expandable percussion drill bit

Country Status (1)

Country Link
AU (1) AU454109B2 (en)

Also Published As

Publication number Publication date
AU5973969A (en) 1971-02-25

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