DD59760A - - Google Patents

Info

Publication number
DD59760A
DD59760A DD59760DA DD59760A DD 59760 A DD59760 A DD 59760A DD 59760D A DD59760D A DD 59760DA DD 59760 A DD59760 A DD 59760A
Authority
DD
German Democratic Republic
Application number
Publication of DD59760A publication Critical patent/DD59760A/xx

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
    • E21B17/02—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
    • E21B17/0465—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 characterised by radially inserted locking elements

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)
DD59760D DD59760A (da)

Publications (1)

Publication Number Publication Date
DD59760A true DD59760A (da)

Family

ID=254271

Family Applications (1)

Application Number Title Priority Date Filing Date
DD59760D DD59760A (da)

Country Status (1)

Country Link
DD (1) DD59760A (da)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2811723A1 (de) * 1977-04-19 1979-01-11 Aufschlaeger Kg Ferd Rohrverbindung, insbesondere fuer bohrrohre
EP0481261A2 (de) * 1990-10-17 1992-04-22 STAHL- UND APPARATEBAU HANS LEFFER GmbH Rohrverbindung, insbesondere für Bohrrohre
DE10015497C2 (de) * 1999-07-06 2001-09-27 Casagrande Spa Kopplungseinrichtung einer Schnellverbindungs-Kupplung an Stützrohren für Bohrarbeiten

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2811723A1 (de) * 1977-04-19 1979-01-11 Aufschlaeger Kg Ferd Rohrverbindung, insbesondere fuer bohrrohre
EP0481261A2 (de) * 1990-10-17 1992-04-22 STAHL- UND APPARATEBAU HANS LEFFER GmbH Rohrverbindung, insbesondere für Bohrrohre
EP0481261A3 (en) * 1990-10-17 1993-01-20 Stahl- Und Apparatebau Hans Leffer Gmbh Pipe connection, especially for drill pipes
DE10015497C2 (de) * 1999-07-06 2001-09-27 Casagrande Spa Kopplungseinrichtung einer Schnellverbindungs-Kupplung an Stützrohren für Bohrarbeiten

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DD59760A (da)