FR586886A - Perforation improvements - Google Patents

Perforation improvements

Info

Publication number
FR586886A
FR586886A FR586886DA FR586886A FR 586886 A FR586886 A FR 586886A FR 586886D A FR586886D A FR 586886DA FR 586886 A FR586886 A FR 586886A
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Application granted granted Critical
Publication of FR586886A publication Critical patent/FR586886A/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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
FR586886D 1924-02-18 1924-10-06 Perforation improvements Expired FR586886A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US586886XA 1924-02-18 1924-02-18

Publications (1)

Publication Number Publication Date
FR586886A true FR586886A (en) 1925-04-04

Family

ID=1539888

Family Applications (1)

Application Number Title Priority Date Filing Date
FR586886D Expired FR586886A (en) 1924-02-18 1924-10-06 Perforation improvements

Country Status (1)

Country Link
FR (1) FR586886A (en)

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