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AU574459B2 - Air lubricated roller cone rock bit with cutouts for chip removal - Google Patents
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AU574459B2 - Air lubricated roller cone rock bit with cutouts for chip removal - Google Patents

Air lubricated roller cone rock bit with cutouts for chip removal

Info

Publication number
AU574459B2
AU574459B2 AU41856/85A AU4185685A AU574459B2 AU 574459 B2 AU574459 B2 AU 574459B2 AU 41856/85 A AU41856/85 A AU 41856/85A AU 4185685 A AU4185685 A AU 4185685A AU 574459 B2 AU574459 B2 AU 574459B2
Authority
AU
Australia
Prior art keywords
cutouts
chip removal
roller cone
rock bit
cone rock
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.)
Ceased
Application number
AU41856/85A
Other versions
AU4185685A (en
Inventor
John Randall Coates
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.)
Smith International Inc
Original Assignee
Smith International 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 Smith International Inc filed Critical Smith International Inc
Publication of AU4185685A publication Critical patent/AU4185685A/en
Application granted granted Critical
Publication of AU574459B2 publication Critical patent/AU574459B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • E21B10/08—Roller bits
    • 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
    • E21B10/08—Roller bits
    • E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids

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)
AU41856/85A 1982-01-08 1985-04-29 Air lubricated roller cone rock bit with cutouts for chip removal Ceased AU574459B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33792982A 1982-01-08 1982-01-08

Publications (2)

Publication Number Publication Date
AU4185685A AU4185685A (en) 1986-11-13
AU574459B2 true AU574459B2 (en) 1988-07-07

Family

ID=23322633

Family Applications (1)

Application Number Title Priority Date Filing Date
AU41856/85A Ceased AU574459B2 (en) 1982-01-08 1985-04-29 Air lubricated roller cone rock bit with cutouts for chip removal

Country Status (2)

Country Link
AU (1) AU574459B2 (en)
CA (1) CA1231091A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016719A (en) * 1990-01-24 1991-05-21 Western Rock Bit Company Limited Rotary cone type rock bits
CN109519128B (en) * 2019-01-18 2024-02-23 沧州格锐特钻头有限公司 A cone-PDC cutting structure composite drill bit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU439742B2 (en) * 1968-03-13 1973-08-23 Improvements in or relating to drill bit and inserts therefor
WO1983000524A1 (en) * 1981-08-07 1983-02-17 Kaalstad, Oscar, William Drilling device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU439742B2 (en) * 1968-03-13 1973-08-23 Improvements in or relating to drill bit and inserts therefor
WO1983000524A1 (en) * 1981-08-07 1983-02-17 Kaalstad, Oscar, William Drilling device

Also Published As

Publication number Publication date
CA1231091A (en) 1988-01-05
AU4185685A (en) 1986-11-13

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