FR2467966B1 - - Google Patents

Info

Publication number
FR2467966B1
FR2467966B1 FR7926551A FR7926551A FR2467966B1 FR 2467966 B1 FR2467966 B1 FR 2467966B1 FR 7926551 A FR7926551 A FR 7926551A FR 7926551 A FR7926551 A FR 7926551A FR 2467966 B1 FR2467966 B1 FR 2467966B1
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.)
Expired
Application number
FR7926551A
Other languages
French (fr)
Other versions
FR2467966A1 (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.)
Norton Christensen Inc
Original Assignee
Christensen 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 Christensen Inc filed Critical Christensen Inc
Priority to FR7926551A priority Critical patent/FR2467966A1/fr
Publication of FR2467966A1 publication Critical patent/FR2467966A1/fr
Application granted granted Critical
Publication of FR2467966B1 publication Critical patent/FR2467966B1/fr
Granted 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
    • E21B10/02—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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type

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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
FR7926551A 1979-10-25 1979-10-25 Trepan de forage ayant des lames de coupe formees separement Granted FR2467966A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7926551A FR2467966A1 (fr) 1979-10-25 1979-10-25 Trepan de forage ayant des lames de coupe formees separement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7926551A FR2467966A1 (fr) 1979-10-25 1979-10-25 Trepan de forage ayant des lames de coupe formees separement

Publications (2)

Publication Number Publication Date
FR2467966A1 FR2467966A1 (fr) 1981-04-30
FR2467966B1 true FR2467966B1 (show.php) 1984-08-17

Family

ID=9231050

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7926551A Granted FR2467966A1 (fr) 1979-10-25 1979-10-25 Trepan de forage ayant des lames de coupe formees separement

Country Status (1)

Country Link
FR (1) FR2467966A1 (show.php)

Also Published As

Publication number Publication date
FR2467966A1 (fr) 1981-04-30

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse