DD38192A - - Google Patents

Info

Publication number
DD38192A
DD38192A DD38192DA DD38192A DD 38192 A DD38192 A DD 38192A DD 38192D A DD38192D A DD 38192DA DD 38192 A DD38192 A DD 38192A
Authority
DD
German Democratic Republic
Application number
Publication of DD38192A publication Critical patent/DD38192A/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)
DD38192D DD38192A (en)

Publications (1)

Publication Number Publication Date
DD38192A true DD38192A (en)

Family

ID=241110

Family Applications (1)

Application Number Title Priority Date Filing Date
DD38192D DD38192A (en)

Country Status (1)

Country Link
DD (1) DD38192A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0034436A1 (en) * 1980-02-18 1981-08-26 Hunting Oilfield Services (Uk) Limited Pipe connector
DE3240263A1 (en) * 1982-10-30 1984-05-03 Fa. Siegfried Maas, 7157 Murrhardt Drilling tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0034436A1 (en) * 1980-02-18 1981-08-26 Hunting Oilfield Services (Uk) Limited Pipe connector
DE3240263A1 (en) * 1982-10-30 1984-05-03 Fa. Siegfried Maas, 7157 Murrhardt Drilling tool

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