EP2744969B1 - Dispositif pour l'actionnement de mâchoires de saisie dans des pinces de couple à rotation continue pour l'utilisation dans la traction et l'ouverture de liaisons filetées - Google Patents

Dispositif pour l'actionnement de mâchoires de saisie dans des pinces de couple à rotation continue pour l'utilisation dans la traction et l'ouverture de liaisons filetées Download PDF

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Publication number
EP2744969B1
EP2744969B1 EP12822030.8A EP12822030A EP2744969B1 EP 2744969 B1 EP2744969 B1 EP 2744969B1 EP 12822030 A EP12822030 A EP 12822030A EP 2744969 B1 EP2744969 B1 EP 2744969B1
Authority
EP
European Patent Office
Prior art keywords
torque tong
drive ring
motors
torque
tong
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.)
Active
Application number
EP12822030.8A
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German (de)
English (en)
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EP2744969A1 (fr
EP2744969A4 (fr
Inventor
Per Olav Haughom
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.)
Canrig Robotic Technologies AS
Original Assignee
Robotic Drilling Systems AS
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Publication date
Application filed by Robotic Drilling Systems AS filed Critical Robotic Drilling Systems AS
Publication of EP2744969A1 publication Critical patent/EP2744969A1/fr
Publication of EP2744969A4 publication Critical patent/EP2744969A4/fr
Application granted granted Critical
Publication of EP2744969B1 publication Critical patent/EP2744969B1/fr
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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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
    • E21B19/164—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe motor actuated

Definitions

  • the present invention relates to torque tongs. More particularly, it relates to a continuous rotation torque tong having a radial opening for inserting and removing threaded connections to be tightened or released.
  • the torque tong is particularly well suited for being used for assembling pipe joints during drilling, as known, for example, from petroleum recovery operations.
  • the torque tong is provided with an encircling mechanical hydraulic chain arrangement which transfers and supplies pressurized hydraulic fluid to the gripping jaws thereof while the torque tong rotates about the longitudinal axis of the pipe.
  • torque tongs Various configurations of torque tongs exist, with the most common being provided with a fixed radial opening for radial movement in the horizontal plane when the tongs are engaged with or removed from the pipe string.
  • the torque tongs are provided with a spinner assembly which, after the pipe joints have been centered relative to each other, effects a rapid rotation of the pipe connection to a limited make-up torque. Thereafter, a hydraulic jacking means is actuated to torque the threaded connection to the desired make-up torque in multiple sequences.
  • Torque tongs having no radial opening, no spinner, and with continuous rotation to a desired make-up torque also exist.
  • Torque tongs for which the radial opening can be opened and closed are also available, but the mechanical design becomes very complex and this design, therefore, has not gained widespread use.
  • the object of the invention is to overcome, or at least reduce, one or more of the drawbacks of the prior art.
  • the torque tong is provided with a drive ring having a cogging encircling the vertical axis of the pipe.
  • the drive ring has a permanently open radial opening out from the centre of rotation.
  • the drive ring is rotatably supported in the torque tong housing, and is driven in a known manner by means of hydraulic or electrical motors.
  • At least 3 fluid-operated radially displaceable clamping devices are disposed.
  • the gripping jaws are provided with replaceable grippers in order to maintain a good friction between the pipe wall and gripping jaws.
  • Pressurized fluid for operating the gripping jaws is generated locally on the drive ring, on which the necessary hydraulic components with pumps, valves, piping and oil tank for fluid are arranged.
  • the supply of power to the hydraulic system of the rotary drive ring is accomplished through an endless rotatable chain supported on drive rings with turning wheels on both sides of the radial opening and circularly about the centre of rotation.
  • Two motors on the non-rotary part of the torque tong can impart rotation to the chain, which is received by two pumps on the rotary drive ring.
  • the motors are positioned with a spacing that is larger than the radial opening and provided with a separate synchronization chain, so that the engagement is not affected when the radial opening rotates by.
  • the motors are also each provided with a clutch, so that the engagement with the chain is only activated when power is to be transferred to the drive ring.
  • the pumps are each provided with a respective backstop, so that rotation of the chain in one direction activates the one pump to open the gripping jaws whereas rotation of the chain in the opposite direction activates the other pump to close the gripping jaws.
  • the motors for rotating the drive ring are provided with synchronization wheels, so that the engagement with the cogging is maintained when the wheels pass by the radial opening.
  • the torque tong consists of an upper torque tong having a rotary drive ring assembled with an underlying, fixed holding tong.
  • the assembly is, by means of a vertical structure, connected to a displaceable base for horizontal movement of the torque tong.
  • the torque and holding tongs are normally mutually displaceable in order to be able to compensate for displacement during tightening of the threaded connection and for maintenance access.
  • the time spent on assembling and disassembling pipe joints is significantly reduced in that the torque tong performs both the spinner function and torquing in a continuous operation.
  • the torque tong is given a simple and robust design with improved operational reliability and simplified maintenance.
  • reference number 1 denotes a drill pipe with a threaded tool-joint 2 for joining two drill pipes.
  • the torque tong, with surrounding steel structures 7 and 11 as well as drive motors 6, are connected to a structure 4 displaceable along a vertical beam 10.
  • the holding tong, with a surrounding steel structure 8, is connected to a structure 5 which is also vertically displaceable along beam 10.
  • Beam 10 is connected to a base 3 which is radially displaceable relative to the vertical axis of pipe 1, so that the entire tong structure can be pulled away from the pipe centre.
  • the torque tong itself is constructed around an outer housing consisting of outer housing plate structures 8 and 11.
  • Drive ring 12 is non-rotatably supported in housing 11 and provided with a cogging engaging four motors 6 via gear wheels 46.
  • the motors 6 are rotationally rigidly synchronized with gear wheels 14, so that when the rotation passes by opening 45, proper engagement is maintained with the cogging of drive ring 12.
  • drive ring 12 Mounted on drive ring 12 is an endless chain 15 running over end rollers 20 on each side of the radial opening 45. Also mounted on drive ring 12 are guides 50 keeping chain 15 in a correct position relative to the centre of rotation.
  • Chain 15 can be made to rotate using motors 18 and 19, which are connected to chain 15 via gear wheels 27, 28.
  • Motors 18 and 19 may be rotationally rigidly synchronized by way of an endless chain 29 and a gear wheel 43 connected to a motor output shaft 41.
  • clutch 30 the motors can be engaged with and disengaged from gear wheels 27, 28 so that drive ring 12 is able to rotate with no influence from motors 18 and 19. The motors are only engaged when the drive ring is stationary and the gripping jaws are to be activated.
  • the clutch 30 is comprised of splined input and output shafts 41 and 42 connected to a shiftable or moveable sleeve 40 operated by hydraulic or electrical signals 31.
  • drive ring 12 When gripping jaws 22, 24 are to be activated, drive ring 12 is stationary. Motors 18 and 19 are engaged with gear wheels 27, 28 when clutch 30 is actuated.
  • Gear wheels 27, 28 engage chain 15, which is made to rotate and drives gear wheels 35.
  • Gear wheels 35 are each connected to a respective hydraulic pump 16 and 17 through a backstop 33 including a spring 34.
  • a backstop 33 including a spring 34.
  • one of pumps 16 or 17 will be actuated to supply pressurized fluid.
  • the pump 16 is a variable hydraulic pump which down-regulates the volume when the pressure increases. This pump, through the automatic actuation of valve 36, is connected to the side of gripping jaws 22 which exerts a clamping force against the pipe wall.
  • Pump 17 is a fixed volume pump which is actuated to supply pressure when the gripping jaws are to be pulled away from the pipe wall.
  • Gripping jaws 22 comprise an inner piston 23 connected to the outer steel structure 21 through a fitting piece 26.
  • a hydraulic unit arranged on the rotary drive ring 12, is provided with separate hydraulic tank 32 and piping(s) 39.

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  • 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)
  • Earth Drilling (AREA)

Claims (14)

  1. Clé de serrage servant à assembler des tubes (1) dotés de raccords filetée (2), destinée à être utilisée dans le forage souterrain comme on le connaît de par l'industrie du pétrole, cette clé de serrage comprenant une ouverture radiale (45) pour insérer et/ou enlever des connexions de tube ou filetées et une bague d'entraînement (12) supportée sans possibilité de rotation dans des structures environnantes (7, 11, 9, 8), dans laquelle la bague d'entraînement (12) est connectée à une structure (21) conçue avec des mâchoires de saisie (22, 24) déplaçables radialement (44) et dans laquelle le transfert de courant pour des pompes fonctionnelles (16, 17) disposées sur la bague d'entraînement rotative (12) avec l'ouverture radiale (45) est réalisée au moyen d'une chaîne sans fin (15) entraînée par des moteurs (18, 19),
    les moteurs (18, 19) étant synchronisées fixement en rotation au moyen d'une chaîne de synchronisation (29) via des roues d'engrenage (43, 27, 28), caractérisée en ce que la chaîne (15) entraîne une ou des roues d'engrenage (35) connectées aux pompes hydrauliques (16, 17), un embrayage ayant une limite (33) étant prévu entre les pompes (16, 17) et les roues d'engrenage (35).
  2. Clé de serrage selon la revendication 1, caractérisée en ce qu'un embrayage (30) entre les moteurs (18, 19) est conçu pour activer et désactiver la rotation.
  3. Clé de serrage selon la revendication 2, caractérisée en ce que les moteurs (18, 19) sont connectés aux et déconnectés des roues d'engrenage (27, 28) au moyen de l'embrayage (30), de sorte que la bague d'entraînement (12) est apte à tourner sans subir l'influence des moteurs (18, 19).
  4. Clé de serrage selon la revendications 2 ou 3, caractérisée en ce que l'embrayage (30) comprend des arbres d'entrée et de sortie cannelés (41, 42) connectés par un manchon commutable (40) actionné par des signaux hydrauliques ou électriques.
  5. Clé de serrage selon l'une quelconque des revendications 1-4, caractérisée en ce que, entre les pompes (16, 17), est disposée une vanne séquentielle (36) contrôlant le débit de pétrole en fonction du sens de rotation des pompes.
  6. Clé de serrage selon l'une quelconque des revendications 1-5, caractérisé en ce que la limite (33) comprend en outre un ressort (34).
  7. Clé de serrage selon l'une quelconque des revendications 1-6, caractérisée en ce que la bague d'entraînement (12) est pourvue d'une denture s'engageant dans les moteurs (6) via une roue d'engrenage (46).
  8. Clé de serrage selon la revendication 7, caractérisée en ce que les moteurs (6) sont synchronisés fixement en rotation avec une roue d'engrenage (14), de sorte que, lorsque la rotation passe par l'ouverture radiale (45), un engagement correct dans la denture de la bague d'entraînement (12) est maintenu.
  9. Clé de serrage selon l'une quelconque des revendications 1-8, caractérisée en ce que la chaîne sans fin (15) passe au-dessus de rouleaux terminaux (20) de chaque côté de l'ouverture radiale (45).
  10. Clé de serrage selon l'une quelconque des revendications 1-9, caractérisée en ce que sont également montés sur la bague d'entraînement (12) des guides (50) maintenant la chaîne (15) dans une position correcte par rapport au centre de rotation.
  11. Clé de serrage selon l'une quelconque des revendications 1-10, caractérisée en ce que la pompe (16) est une pompe hydraulique variable qui régule le volume vers le bas lorsque la pression augmente.
  12. Clé de serrage selon l'une quelconque des revendications 1-11, caractérisée en ce que la pompe (17) est une pompe à volume fixe qui est activée pour fournir de la pression lorsque les mâchoires de saisie doivent être retirées de la paroi du tube.
  13. Clé de serrage selon l'une quelconque des revendications 1-12, caractérisée en ce que les mâchoires de saisie comprennent un piston interne (23) connecté à la structure en acier extérieur (21) via un adaptateur (26).
  14. Clé de serrage selon l'une quelconque des revendications 1-13, caractérisée en ce qu'une unité hydraulique est montée sur la bague d'entraînement rotative (12) et pourvue d'un réservoir hydraulique (32) et d'une canalisation (39) séparés.
EP12822030.8A 2011-08-09 2012-08-07 Dispositif pour l'actionnement de mâchoires de saisie dans des pinces de couple à rotation continue pour l'utilisation dans la traction et l'ouverture de liaisons filetées Active EP2744969B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20111144A NO333115B1 (no) 2011-08-09 2011-08-09 Anordning ved aktivering av klembakker i en kontinuerlig roterende momenttang til bruk ved tiltrekking og apning av gjengeforbindelser
PCT/NO2012/050144 WO2013022352A1 (fr) 2011-08-09 2012-08-07 Dispositif pour l'actionnement de mâchoires de saisie dans des pinces de couple à rotation continue pour l'utilisation dans la traction et l'ouverture de liaisons filetées

Publications (3)

Publication Number Publication Date
EP2744969A1 EP2744969A1 (fr) 2014-06-25
EP2744969A4 EP2744969A4 (fr) 2015-12-30
EP2744969B1 true EP2744969B1 (fr) 2016-10-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12822030.8A Active EP2744969B1 (fr) 2011-08-09 2012-08-07 Dispositif pour l'actionnement de mâchoires de saisie dans des pinces de couple à rotation continue pour l'utilisation dans la traction et l'ouverture de liaisons filetées

Country Status (4)

Country Link
US (1) US20140305265A1 (fr)
EP (1) EP2744969B1 (fr)
NO (1) NO333115B1 (fr)
WO (1) WO2013022352A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112014007449B1 (pt) * 2011-09-29 2020-11-24 National Oilwell Varco Norway As Sistema de aperto para fazer e romper conexoes roscadas
US10794127B2 (en) 2016-01-25 2020-10-06 Warrior Rig Technologies Limited Continuous rotation make/break machine
US10808465B2 (en) 2018-04-27 2020-10-20 Canrig Robotic Technologies As System and method for conducting subterranean operations
US11015402B2 (en) 2018-04-27 2021-05-25 Canrig Robotic Technologies As System and method for conducting subterranean operations
US10822891B2 (en) 2018-04-27 2020-11-03 Canrig Robotic Technologies As System and method for conducting subterranean operations
US11041346B2 (en) 2018-04-27 2021-06-22 Canrig Robotic Technologies As System and method for conducting subterranean operations
NL2021418B1 (en) * 2018-08-03 2020-02-12 Itrec Bv Power Tong
US11836018B2 (en) 2020-03-19 2023-12-05 Canrig Robotic Technologies As Robotic system including an internal cooling system
US11719044B2 (en) 2020-03-19 2023-08-08 Canrig Robotic Technologies As Robotic system including an electrical clamping system
CN114151031B (zh) * 2021-12-10 2024-02-27 北京捷杰西科技股份有限公司 一种用于旋扣钳的增压系统

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US1864844A (en) * 1928-11-12 1932-06-28 Chicago Pneumatic Tool Co Transmission apparatus
US2879680A (en) * 1957-12-09 1959-03-31 Archie W Beeman Jaw operating means for power tongs
US2989880A (en) * 1958-07-03 1961-06-27 Earl D Hesser Power tongs
US3691875A (en) * 1971-04-16 1972-09-19 Byron Jackson Inc Chain driven spinning, make up and break out tongs
US4200010A (en) * 1978-08-07 1980-04-29 Hewitt Burton L Power-operated drill pipe spinner and pipe tongs
US4494424A (en) * 1983-06-24 1985-01-22 Bates Darrell R Chain-powered pipe tong device
US5404944A (en) * 1993-09-24 1995-04-11 Baker Hughes, Inc. Downhole makeup tool for threaded tubulars
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NO319959B1 (no) * 2003-02-28 2005-10-03 Aker Mh As Rotasjonsenhet til momenttang
NO318187B1 (no) * 2003-02-28 2005-02-14 Aker Mh As Rotasjonsenhet til momenttang
US6829967B1 (en) * 2003-08-01 2004-12-14 Terry L. Kemp Power tong tool
US7188547B1 (en) * 2005-12-23 2007-03-13 Varco I/P, Inc. Tubular connect/disconnect apparatus
CA2621570C (fr) * 2008-02-12 2013-04-16 Allan S. Richardson Tenailles mecaniques
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NO333384B1 (no) * 2009-07-06 2013-05-21 Aker Mh As Anordning og fremgangsmate for rotasjon av momenttang

Also Published As

Publication number Publication date
EP2744969A1 (fr) 2014-06-25
EP2744969A4 (fr) 2015-12-30
US20140305265A1 (en) 2014-10-16
WO2013022352A8 (fr) 2013-06-13
WO2013022352A1 (fr) 2013-02-14
NO333115B1 (no) 2013-03-04
NO20111144A1 (no) 2013-02-20

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