US20110156385A1 - Pipe Connection - Google Patents

Pipe Connection Download PDF

Info

Publication number
US20110156385A1
US20110156385A1 US12/995,664 US99566409A US2011156385A1 US 20110156385 A1 US20110156385 A1 US 20110156385A1 US 99566409 A US99566409 A US 99566409A US 2011156385 A1 US2011156385 A1 US 2011156385A1
Authority
US
United States
Prior art keywords
pipe
press fit
parts
stop
transition
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.)
Abandoned
Application number
US12/995,664
Other languages
English (en)
Inventor
Catalin Teodoriu
Gernot Fritz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voestalpine Tubulars GmbH and Co KG
Original Assignee
Voestalpine Tubulars GmbH and Co KG
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 Voestalpine Tubulars GmbH and Co KG filed Critical Voestalpine Tubulars GmbH and Co KG
Assigned to VOESTALPINE TUBULARS GMBH & CO KG reassignment VOESTALPINE TUBULARS GMBH & CO KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FRITZ, GERNOT, TEODORIU, CATALIN
Publication of US20110156385A1 publication Critical patent/US20110156385A1/en
Priority to US15/224,483 priority Critical patent/US9746110B2/en
Abandoned legal-status Critical Current

Links

Images

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
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • 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
    • F16L15/06—Screw-threaded joints; Forms of screw-threads for such joints characterised by the shape of the screw-thread
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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

Definitions

  • the invention concerns a pipe connection, in particular a gas tight pipe screw connection wherein the parts in the connecting region are connected by means of joining according to DIN 8593 by way of contact-pressing and insert-pressing, comprising an inner pipe part and an outer pipe part, or two inner pipe parts with an outer collar.
  • Pipes mostly seamless pipes that can be formed from different materials, are utilized for the conveyance of oil field- and/or gas field products vertically and horizontally also over large distances and require, because of the significant demands, a high sealing quality of the connections during practical operation or application.
  • a pipe connection that has already been utilized over the long term, and represents essentially prior art in regard to the geometric basic concepts, is designed in such a manner that an inner pipe part and an outer pipe part features sealing surfaces that are truncated cone shaped and abut against one another, with an inclination toward one another in the distal direction of the inner pipe part of about 1:10, and that act together with stop surfaces that are truncated cone shaped and are aligned opposite the axis direction.
  • a sealing effect can thereby be achieved by means of a mutual, axial contact-pressing (fully engaged) of the pipe endings for example by means of a thread connection or similar.
  • the U.S. Pat. No. 7,334,821 B2 discloses a pipe connection with a barrel-shaped sealing surface of the pipe inner part that is convex in cut, followed by a protruding extension with a distal stop surface. Thereby, during full engagement of the pipe connection, the press surfaces of the pipe components are to obtain a higher conicity and achieve an improved sealing effect.
  • the manufacturing effort for the construction of the complex shaped sealing regions appears however to be high.
  • the improved usage characteristics of the pipe lines concern in particular the maintenance of the seal tightness of the respective pipe connections in the case of high interior pressure as well as in the case of high external pressure, as well as overlaying tensile-, pressure-, and bending-load of the pipe strand, whereby so-called seizing symptoms in the connecting region are minimized and a release and a renewed full engagement of the connection is to be improved.
  • connection is implemented with three regions, wherein the connecting regions comprise press fit and stop of the pipe parts or press fit surfaces that cooperate with the pipe parts and collar and that have a truncated cone shape and that are inclined in the end direction from the inner pipe part toward the pipe axis, and at the front comprise stop surfaces, which have a truncated cone shape and are directed counter to said press fit surfaces and a transition from press fit and stop of the parts that are connected is provided for said parts without contact with a coaxial intermediate space or hollow space.
  • the advantages achieved with the invention are, acting together, essentially an increase of the surface pressure on the press fit surfaces and an advantageous positioning of said surfaces spaced apart from the stop surfaces. Associated with that is a general optimization of the size of the local, mechanical material stress in the connecting region and an avoidance of tension spikes in respect to the appearance of plastic deformations and the initiation of tears in the material.
  • the press fit- and sealing fit surfaces are shortened or reduced by means of the hollow space at, relative to prior art, the same longitudinal extent of the connection, which leads to higher sealing surface pressures.
  • the transition that is implemented contact-free provides load-kinetically an elevated, largely homogeneous, specific surface pressure and thereby the sealing at the press fit surfaces, wherein, because of an axial spacing apart relative to the stop surfaces, only tolerable differences in the local surface pressure are created in the case of a bending of the system. Overlaying tensile stresses and pressure tensions, if applicable, have only a negligible effect on the sealing of the connection because the press fit surfaces feature a slight inclination of about 1:10.
  • the hollow space in the connecting region of the pipe parts acts as a greasing means pocket and improves the distribution and lowers the pressure of the grease material during the sealing assembly of the field pipeline.
  • the transition between the pipe parts, that is produced without contact of the connecting region's press fit and stop is formed by means of a coaxial recess from the interior wall surface of the outer pipe part, optimal mechanical material stresses as well as also tension states that promote the sealing of the connection are achieved.
  • the recess in the transition region features in its cross section a corner-free profile because as a result tension spikes on the interior surface of the outer pipe part are largely avoided and the initiation of tears and the danger of a breach is eliminated.
  • coaxial recess is implemented in the outer pipe part in the cross section of the press fit surface with a transition radius of 0.5 to 1.0 mm and is shaped up to the stop surface edge-free. Thereby pressure tension spikes are assuredly avoided in the border region of press fit surface and recess.
  • FIG. 1 a pipe connection in an axial cut.
  • FIG. 1 a pipe connection of an inner pipe I and an outer pipe A is shown in an axial cut.
  • the inner pipe part I features a truncated cone surface with a press fit surface 1 I that are, in reference to the pipe diameter, inclined distally at a value of 1:10.
  • a stop surface 2 I is shaped that is inclined toward the pipe's longitudinal axis x at an angle ⁇ of 15° in an oppositely oriented manner and that represents a stop 2 with a sealing surface on the front and the inner pipe end.
  • a outer pipe part A abuts in the case of a completely engaged pipe part connection in the connecting region 1 proximal against the press fit surface 1 I of the inner pipe with the press fit surface A 1 .
  • a transition region 3 provided in which a recess RA from the interior wall of the outer pipe A is present, a hollow space R is formed between the pipe parts I and A and the parts in this zone are placed without contact.
  • the border region between press fit surface 1 A and recess profile 3 A is rounded with a radius of 0.8 mm, wherein in what follows the entire interior wall surface 3 A of the coaxial recess RA up until the stop surface 2 A is implemented in an edge-free rounded manner.
US12/995,664 2008-06-03 2009-05-26 Pipe Connection Abandoned US20110156385A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/224,483 US9746110B2 (en) 2008-06-03 2016-07-29 Gas tight pipe connection of inner and outer pipe parts

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATA894/2008 2008-06-03
AT0089408A AT506876B1 (de) 2008-06-03 2008-06-03 Rohrverbindung
PCT/AT2009/000219 WO2009146475A1 (de) 2008-06-03 2009-05-26 Rohrverbindung

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2009/000219 A-371-Of-International WO2009146475A1 (de) 2008-06-03 2009-05-26 Rohrverbindung

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/224,483 Continuation US9746110B2 (en) 2008-06-03 2016-07-29 Gas tight pipe connection of inner and outer pipe parts

Publications (1)

Publication Number Publication Date
US20110156385A1 true US20110156385A1 (en) 2011-06-30

Family

ID=40872748

Family Applications (2)

Application Number Title Priority Date Filing Date
US12/995,664 Abandoned US20110156385A1 (en) 2008-06-03 2009-05-26 Pipe Connection
US15/224,483 Active US9746110B2 (en) 2008-06-03 2016-07-29 Gas tight pipe connection of inner and outer pipe parts

Family Applications After (1)

Application Number Title Priority Date Filing Date
US15/224,483 Active US9746110B2 (en) 2008-06-03 2016-07-29 Gas tight pipe connection of inner and outer pipe parts

Country Status (22)

Country Link
US (2) US20110156385A1 (de)
EP (1) EP2283203B1 (de)
KR (1) KR101446047B1 (de)
CN (2) CN106439314A (de)
AT (1) AT506876B1 (de)
CA (1) CA2723962C (de)
DK (1) DK2283203T3 (de)
EA (1) EA018783B1 (de)
ES (1) ES2639040T3 (de)
GE (1) GEP20135813B (de)
HR (1) HRP20171463T1 (de)
HU (1) HUE034915T2 (de)
LT (1) LT2283203T (de)
MX (1) MX2010012643A (de)
MY (1) MY163874A (de)
PL (1) PL2283203T3 (de)
PT (1) PT2283203T (de)
SA (1) SA109300342B1 (de)
SI (1) SI2283203T1 (de)
UA (1) UA100557C2 (de)
WO (1) WO2009146475A1 (de)
ZA (1) ZA201007888B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014015133A1 (de) 2014-10-14 2016-04-14 Fangmann Industrie GmbH & Co. KG Gasdichtes Medienverbindungssystem zur Kopplung von in segmentierten Mastkonstruktionen gehalterten Medienleitungen
JP2017125613A (ja) * 2011-12-09 2017-07-20 テナリス・コネクシヨンズ・ベー・ブイ テーパーねじの切削方法
EP3205918A4 (de) * 2014-10-06 2018-05-30 Nippon Steel & Sumitomo Metal Corporation Schraubverbindung für stahlrohre
US10487696B2 (en) 2012-10-11 2019-11-26 Siemens Aktiengesellschaft Method for the flexible operation of a power plant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT513321A1 (de) 2012-08-16 2014-03-15 Bosch Gmbh Robert Gewindeverbindung zum Verbinden von Hochdruckmedium führenden Komponenten
DE102015122309A1 (de) * 2015-12-18 2017-06-22 Voss Fluid Gmbh Rohrverbindung
US11788599B1 (en) 2022-04-11 2023-10-17 DRiV Automotive Inc. Methods of manufacturing vehicle damper

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359013A (en) * 1965-09-03 1967-12-19 Hydril Co Deep well casing jont
US3870351A (en) * 1972-03-31 1975-03-11 Sumitomo Metal Ind Threaded tube joint structure for casing, particularly oil well tubing
US4692988A (en) * 1986-08-19 1987-09-15 Nowsco Well Service (U.K.) Limited Screw thread protection
US4958862A (en) * 1988-10-03 1990-09-25 Dalmine Spa Hermetic metal pipe joint
US4984829A (en) * 1982-04-16 1991-01-15 Nippon Kokan Kabushiki Kaisha Screw coupling joint
US5505502A (en) * 1993-06-09 1996-04-09 Shell Oil Company Multiple-seal underwater pipe-riser connector
US20010027867A1 (en) * 2000-03-31 2001-10-11 Gandy John B. Electropolishing method for oil field tubular goods and drill pipe
US6478344B2 (en) * 2000-09-15 2002-11-12 Abb Vetco Gray Inc. Threaded connector
US7334821B2 (en) * 2001-12-07 2008-02-26 Vallourec Mannesmann Oil & Gas France Premium threaded tubular joint comprising at least a threaded element with end lip

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761450B1 (fr) * 1997-03-27 1999-05-07 Vallourec Mannesmann Oil & Gas Joint filete pour tubes
IT1318176B1 (it) * 2000-07-16 2003-07-23 Pluda S R L Dispositivo per il taglio, la sguainatura e la spellatura di cavirivestiti
ITRM20020445A1 (it) 2002-09-06 2004-03-07 Tenaris Connections Bv Giunzione filettata per tubi.
CN2637869Y (zh) * 2003-07-21 2004-09-01 姜开岭 高压注汽活动管线的连接装置
DE102004035802B3 (de) * 2004-07-23 2006-05-11 Reinert-Ritz Gmbh Zugfeste Rohrverbindung
FR2889727B1 (fr) * 2005-08-09 2007-09-28 Vallourec Mannesmann Oil Gas F Joint filete tubulaire etanche aux liquides et aux gaz

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359013A (en) * 1965-09-03 1967-12-19 Hydril Co Deep well casing jont
US3870351A (en) * 1972-03-31 1975-03-11 Sumitomo Metal Ind Threaded tube joint structure for casing, particularly oil well tubing
US4984829A (en) * 1982-04-16 1991-01-15 Nippon Kokan Kabushiki Kaisha Screw coupling joint
US4692988A (en) * 1986-08-19 1987-09-15 Nowsco Well Service (U.K.) Limited Screw thread protection
US4958862A (en) * 1988-10-03 1990-09-25 Dalmine Spa Hermetic metal pipe joint
US5505502A (en) * 1993-06-09 1996-04-09 Shell Oil Company Multiple-seal underwater pipe-riser connector
US20010027867A1 (en) * 2000-03-31 2001-10-11 Gandy John B. Electropolishing method for oil field tubular goods and drill pipe
US6478344B2 (en) * 2000-09-15 2002-11-12 Abb Vetco Gray Inc. Threaded connector
US7334821B2 (en) * 2001-12-07 2008-02-26 Vallourec Mannesmann Oil & Gas France Premium threaded tubular joint comprising at least a threaded element with end lip

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017125613A (ja) * 2011-12-09 2017-07-20 テナリス・コネクシヨンズ・ベー・ブイ テーパーねじの切削方法
US10487696B2 (en) 2012-10-11 2019-11-26 Siemens Aktiengesellschaft Method for the flexible operation of a power plant
EP3205918A4 (de) * 2014-10-06 2018-05-30 Nippon Steel & Sumitomo Metal Corporation Schraubverbindung für stahlrohre
DE102014015133A1 (de) 2014-10-14 2016-04-14 Fangmann Industrie GmbH & Co. KG Gasdichtes Medienverbindungssystem zur Kopplung von in segmentierten Mastkonstruktionen gehalterten Medienleitungen

Also Published As

Publication number Publication date
LT2283203T (lt) 2017-09-11
MX2010012643A (es) 2011-04-26
SI2283203T1 (sl) 2017-11-30
DK2283203T3 (en) 2017-10-16
GEP20135813B (en) 2013-04-25
UA100557C2 (en) 2013-01-10
EP2283203B1 (de) 2017-07-05
US9746110B2 (en) 2017-08-29
PT2283203T (pt) 2017-09-12
CN102057128A (zh) 2011-05-11
CA2723962C (en) 2017-04-18
SA109300342B1 (en) 2015-02-17
WO2009146475A1 (de) 2009-12-10
CN106439314A (zh) 2017-02-22
PL2283203T3 (pl) 2017-12-29
EP2283203A1 (de) 2011-02-16
KR20110019765A (ko) 2011-02-28
HUE034915T2 (en) 2018-03-28
AT506876B1 (de) 2011-03-15
EA201001879A1 (ru) 2011-06-30
US20160334034A1 (en) 2016-11-17
MY163874A (en) 2017-10-31
EA018783B1 (ru) 2013-10-30
CA2723962A1 (en) 2009-12-10
ZA201007888B (en) 2011-07-27
ES2639040T3 (es) 2017-10-25
KR101446047B1 (ko) 2014-10-01
AT506876A1 (de) 2009-12-15
HRP20171463T1 (hr) 2017-11-17

Similar Documents

Publication Publication Date Title
US9746110B2 (en) Gas tight pipe connection of inner and outer pipe parts
EP1540227B1 (de) Rohranschlussstück mit gewinde
AU2012324340B2 (en) Threaded coupling for pipe
EP3205918B1 (de) Schraubverbindung für stahlrohre
EP3064818B1 (de) Gewindeverbindung für schwerwandige öl-landrohr-waren
CZ2003184A3 (cs) Trubkový závitový spoj se zesílenou boční opěrou
RU2338866C1 (ru) Герметичное резьбовое соединение нефтепромысловых труб
CN103238017B (zh) 一种管道间的改进的密封
RU2310058C2 (ru) Герметичное резьбовое соединение нефтепромысловых труб
CN102265076A (zh) 石油工业中使用的密封管连接结构
RU115813U1 (ru) Труба насосно-компрессорная с высокогерметичным газоплотным резьбовым соединением "ksp-premium" (варианты)
RU2665663C2 (ru) Насосно-компрессорная труба для добывающих скважин
CN205477404U (zh) 外加厚油管
RU2594036C1 (ru) Труба с внутренней пластмассовой оболочкой
EP1243829A1 (de) Schraubverbindung für ölfeldrohre
RU2762926C1 (ru) Резьбовое соединение для стальных труб
EA043019B1 (ru) Резьбовое соединение
RU2257508C2 (ru) Способ футерования металлических труб с наружной резьбой пластмассовой оболочкой
EA042332B1 (ru) Резьбовое соединение для стальных труб
CN105604498A (zh) 外加厚油管

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION