DE303526C - - Google Patents

Info

Publication number
DE303526C
DE303526C DENDAT303526D DE303526DA DE303526C DE 303526 C DE303526 C DE 303526C DE NDAT303526 D DENDAT303526 D DE NDAT303526D DE 303526D A DE303526D A DE 303526DA DE 303526 C DE303526 C DE 303526C
Authority
DE
Germany
Prior art keywords
pin
drill bit
drill
cutting edge
bayonet lock
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.)
Active
Application number
DENDAT303526D
Other languages
German (de)
English (en)
Publication of DE303526C publication Critical patent/DE303526C/de
Active 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
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • 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
    • E21B17/22—Rods or pipes with helical structure

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)
  • Earth Drilling (AREA)
DENDAT303526D Active DE303526C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE303526C true DE303526C (enrdf_load_stackoverflow)

Family

ID=557233

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT303526D Active DE303526C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE303526C (enrdf_load_stackoverflow)

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