BR9912666A - Pipe joining - Google Patents

Pipe joining

Info

Publication number
BR9912666A
BR9912666A BR9912666-4A BR9912666A BR9912666A BR 9912666 A BR9912666 A BR 9912666A BR 9912666 A BR9912666 A BR 9912666A BR 9912666 A BR9912666 A BR 9912666A
Authority
BR
Brazil
Prior art keywords
sealing seat
lip
sealing
seat
degree
Prior art date
Application number
BR9912666-4A
Other languages
Portuguese (pt)
Inventor
Erich Quadflieg
Gerhard Krug
Friedrich Lenze
Martin Schlueter
Original Assignee
Mannesmann Ag
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 Mannesmann Ag filed Critical Mannesmann Ag
Publication of BR9912666A publication Critical patent/BR9912666A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/001Screw-threaded joints; Forms of screw-threads for such joints with conical threads
    • F16L15/004Screw-threaded joints; Forms of screw-threads for such joints with conical threads with axial sealings having at least one plastically deformable sealing surface
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042Threaded

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Gasket Seals (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Joints With Pressure Members (AREA)

Abstract

Patente de Invenção: "UNIãO DE TUBOS". A invenção refere-se a uma união de tubos, com um elemento de luva, que apresenta uma seção roscada interna, que se estende da extremidade axialmente para dentro, à qual se segue uma seção não roscada, e com um elemento de pino, que apresenta uma seção roscada formada de modo complementar ao elemento de luva, à qual se segue uma seção não roscada, que se estende até a extremidade frontal, também designada como lábio e as seções não roscadas entram em contato uma com a outra no estado aparafusado e formam um sistema de vedação metálico, sendo que o sistema de vedação está dotado de duas zonas de contato distanciadas uma da outra e das quais pelo menos uma zona de contato apresenta contornos de seção transversal geometricamente diferentes. A invenção está caracterizada pelo fato de que a zona de contato que apresenta uma distância menor da extremidade (5) do lábio (4) está formada como assento de proteção e a zona de contato que apresenta uma distância maior da extremidade (5) do lábio (4) está formada como assento de vedação, sendo que para o assento de vedação são escolhidos uma distância para a entrada de rosca e um grau da deformação por flexão (1), que produz para o assento de vedação uma pressão de superfície de pelo menos seis vezes a pressão de superfície teoricamente necessária, mas, no máximo, 90% do limite de alongamento, em relação ao material utilizado, sendo que o grau da deformação por flexão (1) é sempre maior do que a sobreposição de rosca na região da entrada de rosca e por entrada de rosca está definido um plano, no qual a rosca de pino e a de luva têm o primeiro contato no lado do lábio e que para o assento de proteção é escolhida uma distância da extremidade (5) do lábio (4), por um lado, e do assento de vedação, por outro lado, bem como um grau de deformação (1) 1,15 a 1,30 vezes mais alto em relação ao assento de vedação, que, na dependência do grau de deformação por flexão (1) escolhido do assento de vedação, produz uma tensão total no assento de vedação, mesmo levando em consideração tolerâncias de fabricação, bem como a sobreposição de cargas e momentos, que atuam externamente, depois do aparafusamento, sob conservação total da função de vedação, que é, no máximo igual ou menor do que o limite de elasticidade do material utilizado.Invention Patent: "TUBE UNION". The invention relates to a pipe joint, with a sleeve element, which has an internal threaded section, which extends from the end axially inward, to which a non-threaded section follows, and with a pin element, which it has a threaded section formed in a complementary way to the sleeve element, followed by a non-threaded section, which extends to the front end, also known as the lip and the non-threaded sections come into contact with each other in the screwed state and they form a metallic sealing system, the sealing system being provided with two contact zones distant from each other and of which at least one contact zone has geometrically different cross-sectional contours. The invention is characterized by the fact that the contact zone which has a shorter distance from the end (5) of the lip (4) is formed as a protective seat and the contact zone which has a greater distance from the end (5) of the lip (4) is formed as a sealing seat, and for the sealing seat, a distance for the thread entry and a degree of bending deformation are chosen (1), which produces a surface pressure of at least for the sealing seat. at least six times the theoretically necessary surface pressure, but at most 90% of the elongation limit, in relation to the material used, and the degree of flexion deformation (1) is always greater than the thread overlap in the region From the thread inlet and through the thread inlet, a plane is defined, in which the pin and glove threads have the first contact on the lip side and for the protection seat, a distance from the end is chosen. and (5) the lip (4), on the one hand, and the sealing seat, on the other hand, as well as a degree of deformation (1) 1.15 to 1.30 times higher in relation to the sealing seat, which, depending on the degree of bending deformation (1) chosen from the sealing seat, produces a total tension in the sealing seat, even taking into account manufacturing tolerances, as well as the overlapping of loads and moments, which act externally, afterwards of screwing, under total conservation of the sealing function, which is at most equal to or less than the elasticity limit of the material used.

BR9912666-4A 1998-07-31 1999-07-16 Pipe joining BR9912666A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19836088A DE19836088C1 (en) 1998-07-31 1998-07-31 Pipe connection
PCT/DE1999/002222 WO2000008367A2 (en) 1998-07-31 1999-07-16 Pipe connection

Publications (1)

Publication Number Publication Date
BR9912666A true BR9912666A (en) 2002-05-21

Family

ID=7877013

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9912666-4A BR9912666A (en) 1998-07-31 1999-07-16 Pipe joining

Country Status (8)

Country Link
EP (1) EP1099071A2 (en)
JP (1) JP2002522713A (en)
AR (1) AR023032A1 (en)
AU (1) AU6078199A (en)
BR (1) BR9912666A (en)
DE (1) DE19836088C1 (en)
NO (1) NO20010508L (en)
WO (1) WO2000008367A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2913746B1 (en) 2007-03-14 2011-06-24 Vallourec Mannesmann Oil & Gas SEALED TUBULAR THREAD SEAL FOR INTERNAL AND EXTERNAL PRESSURE SOLUTIONS
WO2009060552A1 (en) 2007-11-08 2009-05-14 Sumitomo Metal Industries, Ltd. Threaded joint for steel pipes
FR2925946B1 (en) * 2007-12-28 2009-12-11 Vallourec Mannesmann Oil & Gas TUBULAR THREADED SEAL AND RESISTANT TO SUCCESSIVE PRESSURE SOLICITATIONS
BRPI0920855B1 (en) * 2008-10-20 2020-09-15 Nippon Steel Corporation THREADED JOINT FOR STEEL PIPES
JP4930647B1 (en) * 2010-06-30 2012-05-16 Jfeスチール株式会社 Threaded joints for pipes
EP3260649B1 (en) * 2016-06-21 2019-12-18 Energy Frontier Solutions S.L. Threaded joint for oil and gas pipes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE633562A (en) * 1962-06-26
DE3660516D1 (en) * 1986-01-23 1988-09-15 Mannesmann Ag Coupling for oil and gas field pipes
DE4035684A1 (en) * 1990-11-09 1992-05-14 Helge Dr Kegenbein Roller and tube joint - has centering seats to give trouble-free screwing action to join sections together
DE4446806C1 (en) * 1994-12-09 1996-05-30 Mannesmann Ag Gas-tight pipe connection

Also Published As

Publication number Publication date
WO2000008367A3 (en) 2000-05-18
NO20010508L (en) 2001-03-26
DE19836088C1 (en) 2000-02-03
EP1099071A2 (en) 2001-05-16
WO2000008367A2 (en) 2000-02-17
NO20010508D0 (en) 2001-01-30
AR023032A1 (en) 2002-09-04
AU6078199A (en) 2000-02-28
JP2002522713A (en) 2002-07-23

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Free format text: ERICH QUADFLIEG (DE), GERHARD KRUG (DE), FRIEDRICH LENZE (DE), MARTIN SCHLUETER (DE)

B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 3A E 6A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1834 DE 01/03/2006.