FR951136A - Perfectionnements aux outils pour la perforation des roches - Google Patents

Perfectionnements aux outils pour la perforation des roches

Info

Publication number
FR951136A
FR951136A FR951136DA FR951136A FR 951136 A FR951136 A FR 951136A FR 951136D A FR951136D A FR 951136DA FR 951136 A FR951136 A FR 951136A
Authority
FR
France
Prior art keywords
tools
rock drilling
rock
drilling
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
English (en)
Inventor
Louis-Camille-Andre Gardelle
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 filed Critical
Application granted granted Critical
Publication of FR951136A publication Critical patent/FR951136A/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like

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)
FR951136D 1947-07-04 1947-07-04 Perfectionnements aux outils pour la perforation des roches Expired FR951136A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR951136T 1947-07-04

Publications (1)

Publication Number Publication Date
FR951136A true FR951136A (fr) 1949-10-17

Family

ID=9482989

Family Applications (1)

Application Number Title Priority Date Filing Date
FR951136D Expired FR951136A (fr) 1947-07-04 1947-07-04 Perfectionnements aux outils pour la perforation des roches

Country Status (1)

Country Link
FR (1) FR951136A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4262762A (en) * 1979-10-09 1981-04-21 Potratz Robert P Anti-collaring structure for impact bit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4262762A (en) * 1979-10-09 1981-04-21 Potratz Robert P Anti-collaring structure for impact bit

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