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BR9809201A - Conexão roscada para aumentar a resistência à fadiga - Google Patents

Conexão roscada para aumentar a resistência à fadiga

Info

Publication number
BR9809201A
BR9809201A BR9809201-4A BR9809201A BR9809201A BR 9809201 A BR9809201 A BR 9809201A BR 9809201 A BR9809201 A BR 9809201A BR 9809201 A BR9809201 A BR 9809201A
Authority
BR
Brazil
Prior art keywords
spiral
threaded connection
radially
threads
internal
Prior art date
Application number
BR9809201-4A
Other languages
English (en)
Inventor
Ed Evans
Richard Delange
Jerry L Buster
Original Assignee
Grant Prideco Inc
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 Grant Prideco Inc filed Critical Grant Prideco Inc
Publication of BR9809201A publication Critical patent/BR9809201A/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
    • F16L15/004—Screw-threaded joints; Forms of screw-threads for such joints with conical threads with axial sealings having at least one plastically deformable sealing surface
    • 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
    • E21B17/042—Threaded
    • 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
    • E21B17/08—Casing joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
    • F16L15/003—Screw-threaded joints; Forms of screw-threads for such joints with conical threads with sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Earth Drilling (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

Patente de Invenção: <B>"CONEXãO ROSCADA PARA RESISTêNCIA à FADIGA MELHORADA"<D>. Uma conexão roscada para aperfeiçoar resistência à fadiga para carga cíclica é descrita. A conexão roscada (10) basicamente compreende um par de membros de intertravamento (12, 16) possuindo roscas espirais radialmente internas (52) e radialmente externas (50) sobre os mesmos, cada rosca espiral incluindo um flanco de compressão espiral (56, 68) e flancos de tensão espirais (58, 64) sobre as roscas espirais internas estão em engate planar com um flanco de compressão espiral correspondente (56, 68) e o flanco de tensão espiral (58, 64) sobre a rosca espiral externa. O espaçamento axial entre os flancos de tensão (58, 64) e os flancos de compressão (56, 68) sobre as roscas espirais radialmente internas e radialmente externas ainda define uma superfície de raiz espiral de redução de tensão (60, 62) sobre pelo menos uma das roscas radialmente interna (52) e radialmente externa (50) e uma superfície de topo correspondente (54, 66) sobre as outras roscas espirais radialmente interna e radialmente externa.
BR9809201-4A 1997-05-02 1998-04-14 Conexão roscada para aumentar a resistência à fadiga BR9809201A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/850,735 US5931511A (en) 1997-05-02 1997-05-02 Threaded connection for enhanced fatigue resistance
PCT/US1998/007657 WO1998050720A1 (en) 1997-05-02 1998-04-14 Threaded connection for enhanced fatigue resistance

Publications (1)

Publication Number Publication Date
BR9809201A true BR9809201A (pt) 2001-06-19

Family

ID=25308970

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9809201-4A BR9809201A (pt) 1997-05-02 1998-04-14 Conexão roscada para aumentar a resistência à fadiga

Country Status (7)

Country Link
US (1) US5931511A (pt)
EP (1) EP0979369A1 (pt)
AU (1) AU7249298A (pt)
BR (1) BR9809201A (pt)
CA (1) CA2288740A1 (pt)
NO (1) NO995320L (pt)
WO (1) WO1998050720A1 (pt)

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Also Published As

Publication number Publication date
CA2288740A1 (en) 1998-11-12
WO1998050720A1 (en) 1998-11-12
NO995320D0 (no) 1999-11-01
NO995320L (no) 1999-12-30
EP0979369A1 (en) 2000-02-16
AU7249298A (en) 1998-11-27
US5931511A (en) 1999-08-03

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