FR499920A - Perforation improvements - Google Patents

Perforation improvements

Info

Publication number
FR499920A
FR499920A FR499920A FR499920DA FR499920A FR 499920 A FR499920 A FR 499920A FR 499920 A FR499920 A FR 499920A FR 499920D A FR499920D A FR 499920DA FR 499920 A FR499920 A FR 499920A
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
FR499920A
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.)
CLIMAX ROCK DRILL AND ENGINEERING WORKS LI Ste
RAYNAR DE HELE S STEPHENS
Original Assignee
CLIMAX ROCK DRILL AND ENGINEERING WORKS LI Ste
RAYNAR DE HELE S STEPHENS
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 CLIMAX ROCK DRILL AND ENGINEERING WORKS LI Ste, RAYNAR DE HELE S STEPHENS filed Critical CLIMAX ROCK DRILL AND ENGINEERING WORKS LI Ste
Application granted granted Critical
Publication of FR499920A publication Critical patent/FR499920A/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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes

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)
FR499920A 1918-07-26 1919-05-21 Perforation improvements Expired FR499920A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB499920X 1918-07-26

Publications (1)

Publication Number Publication Date
FR499920A true FR499920A (en) 1920-02-26

Family

ID=1534880

Family Applications (1)

Application Number Title Priority Date Filing Date
FR499920A Expired FR499920A (en) 1918-07-26 1919-05-21 Perforation improvements

Country Status (1)

Country Link
FR (1) FR499920A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1057547B (en) * 1949-08-27 1959-05-21 Hemscheidt Maschf Hermann Dust extractor with suction head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1057547B (en) * 1949-08-27 1959-05-21 Hemscheidt Maschf Hermann Dust extractor with suction head

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