FR2482654B1 - - Google Patents

Info

Publication number
FR2482654B1
FR2482654B1 FR8011077A FR8011077A FR2482654B1 FR 2482654 B1 FR2482654 B1 FR 2482654B1 FR 8011077 A FR8011077 A FR 8011077A FR 8011077 A FR8011077 A FR 8011077A FR 2482654 B1 FR2482654 B1 FR 2482654B1
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
FR8011077A
Other languages
French (fr)
Other versions
FR2482654A1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8011077A priority Critical patent/FR2482654A1/fr
Publication of FR2482654A1 publication Critical patent/FR2482654A1/fr
Application granted granted Critical
Publication of FR2482654B1 publication Critical patent/FR2482654B1/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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • 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
    • 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
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
FR8011077A 1980-05-16 1980-05-16 Carotteur a percussion annulaire Granted FR2482654A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8011077A FR2482654A1 (fr) 1980-05-16 1980-05-16 Carotteur a percussion annulaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8011077A FR2482654A1 (fr) 1980-05-16 1980-05-16 Carotteur a percussion annulaire

Publications (2)

Publication Number Publication Date
FR2482654A1 FR2482654A1 (fr) 1981-11-20
FR2482654B1 true FR2482654B1 (enExample) 1984-03-30

Family

ID=9242079

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8011077A Granted FR2482654A1 (fr) 1980-05-16 1980-05-16 Carotteur a percussion annulaire

Country Status (1)

Country Link
FR (1) FR2482654A1 (enExample)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2758385C3 (de) * 1977-12-28 1981-03-26 Ing. G. Klemm Bohrtechnik GmbH, 57489 Drolshagen Schlag-Bohreinrichtung für Großlochbohrungen

Also Published As

Publication number Publication date
FR2482654A1 (fr) 1981-11-20

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Legal Events

Date Code Title Description
CL Concession to grant licenses
ST Notification of lapse