FR2258515B1 - - Google Patents

Info

Publication number
FR2258515B1
FR2258515B1 FR7402088A FR7402088A FR2258515B1 FR 2258515 B1 FR2258515 B1 FR 2258515B1 FR 7402088 A FR7402088 A FR 7402088A FR 7402088 A FR7402088 A FR 7402088A FR 2258515 B1 FR2258515 B1 FR 2258515B1
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
FR7402088A
Other languages
French (fr)
Other versions
FR2258515A1 (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.)
Cegelec SA
Original Assignee
Cegelec 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 Cegelec SA filed Critical Cegelec SA
Priority to FR7402088A priority Critical patent/FR2258515A1/fr
Publication of FR2258515A1 publication Critical patent/FR2258515A1/fr
Application granted granted Critical
Publication of FR2258515B1 publication Critical patent/FR2258515B1/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
    • E21B4/00—Drives for drilling, used in the borehole
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers

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)
FR7402088A 1974-01-22 1974-01-22 Transmission for underground drilling motor - with axially displaceable coupling for locking the motor stator and rotor to release a jammed drill bit Granted FR2258515A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7402088A FR2258515A1 (en) 1974-01-22 1974-01-22 Transmission for underground drilling motor - with axially displaceable coupling for locking the motor stator and rotor to release a jammed drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7402088A FR2258515A1 (en) 1974-01-22 1974-01-22 Transmission for underground drilling motor - with axially displaceable coupling for locking the motor stator and rotor to release a jammed drill bit

Publications (2)

Publication Number Publication Date
FR2258515A1 FR2258515A1 (en) 1975-08-18
FR2258515B1 true FR2258515B1 (ja) 1976-11-26

Family

ID=9133810

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7402088A Granted FR2258515A1 (en) 1974-01-22 1974-01-22 Transmission for underground drilling motor - with axially displaceable coupling for locking the motor stator and rotor to release a jammed drill bit

Country Status (1)

Country Link
FR (1) FR2258515A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2332412A1 (fr) * 1975-11-19 1977-06-17 Alsthom Cgee Dispositif d'immobilisation en rotation de la partie statorique d'un moteur souterrain
GB0101014D0 (en) * 2001-01-15 2001-02-28 Neyrfor Weir Ltd Improved downhole tool
WO2017168272A1 (en) * 2016-03-28 2017-10-05 Extreme Machining Australia Pty Ltd. Wellbore motor with selective locking mechanism

Also Published As

Publication number Publication date
FR2258515A1 (en) 1975-08-18

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Legal Events

Date Code Title Description
ST Notification of lapse