FR2260687A1 - - Google Patents

Info

Publication number
FR2260687A1
FR2260687A1 FR7504366A FR7504366A FR2260687A1 FR 2260687 A1 FR2260687 A1 FR 2260687A1 FR 7504366 A FR7504366 A FR 7504366A FR 7504366 A FR7504366 A FR 7504366A FR 2260687 A1 FR2260687 A1 FR 2260687A1
Authority
FR
France
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.)
Granted
Application number
FR7504366A
Other languages
French (fr)
Other versions
FR2260687B1 (it
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2260687A1 publication Critical patent/FR2260687A1/fr
Application granted granted Critical
Publication of FR2260687B1 publication Critical patent/FR2260687B1/fr
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
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
    • E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
    • 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
    • E21B10/56—Button-type 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type 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
    • E21B10/60—Drill 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)
  • Drilling Tools (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
FR7504366A 1974-02-13 1975-02-12 Expired FR2260687B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44218174A 1974-02-13 1974-02-13

Publications (2)

Publication Number Publication Date
FR2260687A1 true FR2260687A1 (it) 1975-09-05
FR2260687B1 FR2260687B1 (it) 1979-07-27

Family

ID=23755835

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7504366A Expired FR2260687B1 (it) 1974-02-13 1975-02-12

Country Status (2)

Country Link
FR (1) FR2260687B1 (it)
GB (1) GB1466036A (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358537A1 (fr) * 1976-07-12 1978-02-10 Christensen Inc Trepan a diamants pour le forage du sol
FR2372311A1 (fr) * 1976-11-26 1978-06-23 Christensen Inc Trepan de forage
FR2388982A1 (fr) * 1977-04-25 1978-11-24 Christensen Inc Trepan de forage au diamant pour roches tendres et demi-dures
FR2422478A1 (fr) * 1978-04-11 1979-11-09 Michelin & Cie Dispositif d'erosion comportant une tete avec des couteaux
FR2587630A1 (fr) * 1985-09-20 1987-03-27 Bourlier Manutention Outil desagregateur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107288550B (zh) * 2017-08-18 2023-07-04 陕西圆极岩土科技发展有限公司 适用于硬质岩土层的打桩成孔钻头

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358537A1 (fr) * 1976-07-12 1978-02-10 Christensen Inc Trepan a diamants pour le forage du sol
FR2372311A1 (fr) * 1976-11-26 1978-06-23 Christensen Inc Trepan de forage
FR2388982A1 (fr) * 1977-04-25 1978-11-24 Christensen Inc Trepan de forage au diamant pour roches tendres et demi-dures
FR2422478A1 (fr) * 1978-04-11 1979-11-09 Michelin & Cie Dispositif d'erosion comportant une tete avec des couteaux
FR2587630A1 (fr) * 1985-09-20 1987-03-27 Bourlier Manutention Outil desagregateur

Also Published As

Publication number Publication date
AU7809175A (en) 1976-08-12
FR2260687B1 (it) 1979-07-27
GB1466036A (en) 1977-03-02

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Legal Events

Date Code Title Description
ST Notification of lapse