FR2365021B1 - - Google Patents

Info

Publication number
FR2365021B1
FR2365021B1 FR7627871A FR7627871A FR2365021B1 FR 2365021 B1 FR2365021 B1 FR 2365021B1 FR 7627871 A FR7627871 A FR 7627871A FR 7627871 A FR7627871 A FR 7627871A FR 2365021 B1 FR2365021 B1 FR 2365021B1
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
FR7627871A
Other languages
French (fr)
Other versions
FR2365021A1 (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.)
INST BUROVOI TEKHNIK
Original Assignee
INST BUROVOI TEKHNIK
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 INST BUROVOI TEKHNIK filed Critical INST BUROVOI TEKHNIK
Priority to FR7627871A priority Critical patent/FR2365021A1/fr
Publication of FR2365021A1 publication Critical patent/FR2365021A1/fr
Application granted granted Critical
Publication of FR2365021B1 publication Critical patent/FR2365021B1/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
    • E21B10/08—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)
FR7627871A 1976-09-16 1976-09-16 Trepan a trois molettes Granted FR2365021A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7627871A FR2365021A1 (fr) 1976-09-16 1976-09-16 Trepan a trois molettes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7627871A FR2365021A1 (fr) 1976-09-16 1976-09-16 Trepan a trois molettes

Publications (2)

Publication Number Publication Date
FR2365021A1 FR2365021A1 (fr) 1978-04-14
FR2365021B1 true FR2365021B1 (enExample) 1979-01-12

Family

ID=9177749

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7627871A Granted FR2365021A1 (fr) 1976-09-16 1976-09-16 Trepan a trois molettes

Country Status (1)

Country Link
FR (1) FR2365021A1 (enExample)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112800A (en) * 1959-08-28 1963-12-03 Phillips Petroleum Co Method of drilling with high velocity jet cutter rock bit
US3137354A (en) * 1960-01-11 1964-06-16 Reed Roller Bit Co Drill bit nozzles
US3329222A (en) * 1964-11-23 1967-07-04 Smith Ind International Inc Jet bit

Also Published As

Publication number Publication date
FR2365021A1 (fr) 1978-04-14

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Legal Events

Date Code Title Description
ST Notification of lapse