CA997749A - Rotary bit - Google Patents

Rotary bit

Info

Publication number
CA997749A
CA997749A CA189,757A CA189757A CA997749A CA 997749 A CA997749 A CA 997749A CA 189757 A CA189757 A CA 189757A CA 997749 A CA997749 A CA 997749A
Authority
CA
Canada
Prior art keywords
rotary bit
bit
rotary
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
CA189,757A
Other languages
English (en)
Inventor
Albert C. Pols
Robijn Feenstra
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.)
Shell Canada Ltd
Original Assignee
Shell Canada 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
Priority claimed from GB1053073A external-priority patent/GB1469524A/en
Application filed by Shell Canada Ltd filed Critical Shell Canada Ltd
Application granted granted Critical
Publication of CA997749A publication Critical patent/CA997749A/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
    • 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
    • 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Sheet Holders (AREA)
  • Fertilizing (AREA)
CA189,757A 1973-03-05 1974-01-09 Rotary bit Expired CA997749A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1053073A GB1469524A (en) 1973-03-05 1973-03-05 Rotary bit for hydraulically drilling holes into underground formations
GB5143273 1973-11-06

Publications (1)

Publication Number Publication Date
CA997749A true CA997749A (en) 1976-09-28

Family

ID=26247583

Family Applications (1)

Application Number Title Priority Date Filing Date
CA189,757A Expired CA997749A (en) 1973-03-05 1974-01-09 Rotary bit

Country Status (6)

Country Link
JP (1) JPS5743717B2 (de)
CA (1) CA997749A (de)
DE (1) DE2410236C3 (de)
FR (1) FR2220662A1 (de)
NL (1) NL177241C (de)
NO (1) NO143391C (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098363A (en) * 1977-04-25 1978-07-04 Christensen, Inc. Diamond drilling bit for soft and medium hard formations
JP2012127062A (ja) * 2010-12-13 2012-07-05 Mitsubishi Materials Corp 掘削ビット

Also Published As

Publication number Publication date
DE2410236C3 (de) 1980-10-23
FR2220662B1 (de) 1982-06-04
DE2410236B2 (de) 1980-03-06
DE2410236A1 (de) 1974-09-12
NL177241C (nl) 1985-08-16
NO740735L (no) 1974-09-06
NL7402876A (de) 1974-09-09
JPS5743717B2 (de) 1982-09-16
NO143391B (no) 1980-10-20
NO143391C (no) 1981-01-28
FR2220662A1 (en) 1974-10-04
JPS49118601A (de) 1974-11-13

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