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FR1315697A - Advanced trephine - Google Patents

Advanced trephine

Info

Publication number
FR1315697A
FR1315697A FR889027A FR889027A FR1315697A FR 1315697 A FR1315697 A FR 1315697A FR 889027 A FR889027 A FR 889027A FR 889027 A FR889027 A FR 889027A FR 1315697 A FR1315697 A FR 1315697A
Authority
FR
France
Prior art keywords
trephine
advanced
advanced trephine
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
FR889027A
Other languages
French (fr)
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.)
Diamant Boart NV SA
Original Assignee
Diamant Boart NV SA
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 Diamant Boart NV SA filed Critical Diamant Boart NV SA
Priority to FR889027A priority Critical patent/FR1315697A/en
Application granted granted Critical
Publication of FR1315697A publication Critical patent/FR1315697A/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
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • 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
    • E21B10/605—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a core-bit
    • 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)
FR889027A 1962-02-23 1962-02-23 Advanced trephine Expired FR1315697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR889027A FR1315697A (en) 1962-02-23 1962-02-23 Advanced trephine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR889027A FR1315697A (en) 1962-02-23 1962-02-23 Advanced trephine

Publications (1)

Publication Number Publication Date
FR1315697A true FR1315697A (en) 1963-01-18

Family

ID=8773373

Family Applications (1)

Application Number Title Priority Date Filing Date
FR889027A Expired FR1315697A (en) 1962-02-23 1962-02-23 Advanced trephine

Country Status (1)

Country Link
FR (1) FR1315697A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917664A1 (en) * 1979-05-02 1980-11-13 Christensen Inc ROTARY DRILL CHISEL FOR DEEP HOLES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917664A1 (en) * 1979-05-02 1980-11-13 Christensen Inc ROTARY DRILL CHISEL FOR DEEP HOLES

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