FR1089796A - Perfectionnements aux trépans de perforatrices - Google Patents

Perfectionnements aux trépans de perforatrices

Info

Publication number
FR1089796A
FR1089796A FR1089796DA FR1089796A FR 1089796 A FR1089796 A FR 1089796A FR 1089796D A FR1089796D A FR 1089796DA FR 1089796 A FR1089796 A FR 1089796A
Authority
FR
France
Prior art keywords
drill bit
perforation drill
perforation
bit
drill
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
Other languages
English (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.)
English Drilling Equipment Co Ltd
Original Assignee
English Drilling Equipment Co Ltd
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 English Drilling Equipment Co Ltd filed Critical English Drilling Equipment Co Ltd
Application granted granted Critical
Publication of FR1089796A publication Critical patent/FR1089796A/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
    • E21B10/08—Roller bits
    • E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles

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)
FR1089796D 1953-08-26 1953-12-22 Perfectionnements aux trépans de perforatrices Expired FR1089796A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1089796X 1953-08-26

Publications (1)

Publication Number Publication Date
FR1089796A true FR1089796A (fr) 1955-03-22

Family

ID=10873285

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1089796D Expired FR1089796A (fr) 1953-08-26 1953-12-22 Perfectionnements aux trépans de perforatrices

Country Status (1)

Country Link
FR (1) FR1089796A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2412379A1 (fr) * 1977-07-22 1979-07-20 Smith International Procede de fabrication de trepans pour roches, en assemblant par soudage les segments du corps du trepan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2412379A1 (fr) * 1977-07-22 1979-07-20 Smith International Procede de fabrication de trepans pour roches, en assemblant par soudage les segments du corps du trepan

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