FR373572A - Improvements to perforators - Google Patents

Improvements to perforators

Info

Publication number
FR373572A
FR373572A FR373572A FR373572DA FR373572A FR 373572 A FR373572 A FR 373572A FR 373572 A FR373572 A FR 373572A FR 373572D A FR373572D A FR 373572DA FR 373572 A FR373572 A FR 373572A
Authority
FR
France
Prior art keywords
perforators
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
FR373572A
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 FR373572A publication Critical patent/FR373572A/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
    • E21B1/00—Percussion drilling
    • E21B1/12—Percussion drilling with a reciprocating impulse member
    • E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
    • E21B1/30—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure
    • E21B1/32—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure working with pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (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)
FR373572A 1907-01-15 1907-01-15 Improvements to perforators Expired FR373572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR373572T 1907-01-15

Publications (1)

Publication Number Publication Date
FR373572A true FR373572A (en) 1907-05-18

Family

ID=1420267

Family Applications (1)

Application Number Title Priority Date Filing Date
FR373572A Expired FR373572A (en) 1907-01-15 1907-01-15 Improvements to perforators

Country Status (1)

Country Link
FR (1) FR373572A (en)

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