FR2272255B1 - - Google Patents

Info

Publication number
FR2272255B1
FR2272255B1 FR7417483A FR7417483A FR2272255B1 FR 2272255 B1 FR2272255 B1 FR 2272255B1 FR 7417483 A FR7417483 A FR 7417483A FR 7417483 A FR7417483 A FR 7417483A FR 2272255 B1 FR2272255 B1 FR 2272255B1
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
FR7417483A
Other languages
French (fr)
Other versions
FR2272255A1 (en
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.)
Creusot Loire SA
Original Assignee
Creusot Loire 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 Creusot Loire SA filed Critical Creusot Loire SA
Priority to FR7417483A priority Critical patent/FR2272255A1/fr
Publication of FR2272255A1 publication Critical patent/FR2272255A1/fr
Application granted granted Critical
Publication of FR2272255B1 publication Critical patent/FR2272255B1/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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/61—Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
    • 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)
FR7417483A 1974-05-20 1974-05-20 Mud-lubricated drilling tool - having mud ports of superior characteristics Granted FR2272255A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7417483A FR2272255A1 (en) 1974-05-20 1974-05-20 Mud-lubricated drilling tool - having mud ports of superior characteristics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7417483A FR2272255A1 (en) 1974-05-20 1974-05-20 Mud-lubricated drilling tool - having mud ports of superior characteristics

Publications (2)

Publication Number Publication Date
FR2272255A1 FR2272255A1 (en) 1975-12-19
FR2272255B1 true FR2272255B1 (OSRAM) 1980-04-04

Family

ID=9139063

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7417483A Granted FR2272255A1 (en) 1974-05-20 1974-05-20 Mud-lubricated drilling tool - having mud ports of superior characteristics

Country Status (1)

Country Link
FR (1) FR2272255A1 (OSRAM)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187921A (en) * 1978-12-01 1980-02-12 Smith International, Inc. Rock bit combination to enhance cuttings removal
US4400024A (en) * 1981-07-31 1983-08-23 Hughes Tool Company Nozzle retaining ring with crushed O-ring
US4665999A (en) * 1984-05-16 1987-05-19 Shoemaker Ken S Variable length three-cone rock bit nozzles
US7954568B2 (en) 2006-11-15 2011-06-07 Baker Hughes Incorporated Drill bit nozzle assembly and insert assembly including a drill bit nozzle assembly

Also Published As

Publication number Publication date
FR2272255A1 (en) 1975-12-19

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Legal Events

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