FR1113865A - Perforation improvements - Google Patents

Perforation improvements

Info

Publication number
FR1113865A
FR1113865A FR1113865DA FR1113865A FR 1113865 A FR1113865 A FR 1113865A FR 1113865D A FR1113865D A FR 1113865DA FR 1113865 A FR1113865 A FR 1113865A
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
Other languages
French (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.)
Atlas Copco AB
Original Assignee
Atlas Diesel 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 Diesel AB filed Critical Atlas Diesel AB
Application granted granted Critical
Publication of FR1113865A publication Critical patent/FR1113865A/en
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)
FR1113865D 1953-10-23 1954-10-22 Perforation improvements Expired FR1113865A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1113865XA 1953-10-23 1953-10-23

Publications (1)

Publication Number Publication Date
FR1113865A true FR1113865A (en) 1956-04-05

Family

ID=22338228

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1113865D Expired FR1113865A (en) 1953-10-23 1954-10-22 Perforation improvements

Country Status (1)

Country Link
FR (1) FR1113865A (en)

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