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AU439742B2 - Improvements in or relating to drill bit and inserts therefor - Google Patents
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AU439742B2 - Improvements in or relating to drill bit and inserts therefor - Google Patents

Improvements in or relating to drill bit and inserts therefor

Info

Publication number
AU439742B2
AU439742B2 AU34878/68A AU3487868A AU439742B2 AU 439742 B2 AU439742 B2 AU 439742B2 AU 34878/68 A AU34878/68 A AU 34878/68A AU 3487868 A AU3487868 A AU 3487868A AU 439742 B2 AU439742 B2 AU 439742B2
Authority
AU
Australia
Prior art keywords
relating
drill bit
inserts therefor
therefor
inserts
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
AU34878/68A
Other versions
AU3487868A (en
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 AU34878/68A priority Critical patent/AU439742B2/en
Publication of AU3487868A publication Critical patent/AU3487868A/en
Application granted granted Critical
Publication of AU439742B2 publication Critical patent/AU439742B2/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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
    • E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts

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)
AU34878/68A 1968-03-13 1968-03-13 Improvements in or relating to drill bit and inserts therefor Expired AU439742B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU34878/68A AU439742B2 (en) 1968-03-13 1968-03-13 Improvements in or relating to drill bit and inserts therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU34878/68A AU439742B2 (en) 1968-03-13 1968-03-13 Improvements in or relating to drill bit and inserts therefor

Publications (2)

Publication Number Publication Date
AU3487868A AU3487868A (en) 1969-09-18
AU439742B2 true AU439742B2 (en) 1973-08-23

Family

ID=3722112

Family Applications (1)

Application Number Title Priority Date Filing Date
AU34878/68A Expired AU439742B2 (en) 1968-03-13 1968-03-13 Improvements in or relating to drill bit and inserts therefor

Country Status (1)

Country Link
AU (1) AU439742B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU574459B2 (en) * 1982-01-08 1988-07-07 Smith International, Inc. Air lubricated roller cone rock bit with cutouts for chip removal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU574459B2 (en) * 1982-01-08 1988-07-07 Smith International, Inc. Air lubricated roller cone rock bit with cutouts for chip removal

Also Published As

Publication number Publication date
AU3487868A (en) 1969-09-18

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