FR1338750A - Perfectionnements aux perforatrices - Google Patents

Perfectionnements aux perforatrices

Info

Publication number
FR1338750A
FR1338750A FR914656A FR914656A FR1338750A FR 1338750 A FR1338750 A FR 1338750A FR 914656 A FR914656 A FR 914656A FR 914656 A FR914656 A FR 914656A FR 1338750 A FR1338750 A FR 1338750A
Authority
FR
France
Prior art keywords
perforation
perforation improvements
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
FR914656A
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.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
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 Atlas Copco AB filed Critical Atlas Copco AB
Priority to FR914656A priority Critical patent/FR1338750A/fr
Application granted granted Critical
Publication of FR1338750A publication Critical patent/FR1338750A/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/087—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods by means of a swinging arm

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)
FR914656A 1962-11-07 1962-11-07 Perfectionnements aux perforatrices Expired FR1338750A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR914656A FR1338750A (fr) 1962-11-07 1962-11-07 Perfectionnements aux perforatrices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR914656A FR1338750A (fr) 1962-11-07 1962-11-07 Perfectionnements aux perforatrices

Publications (1)

Publication Number Publication Date
FR1338750A true FR1338750A (fr) 1963-09-27

Family

ID=8790296

Family Applications (1)

Application Number Title Priority Date Filing Date
FR914656A Expired FR1338750A (fr) 1962-11-07 1962-11-07 Perfectionnements aux perforatrices

Country Status (1)

Country Link
FR (1) FR1338750A (fr)

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