EP1305497B1 - Raccord de tiges - Google Patents

Raccord de tiges Download PDF

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Publication number
EP1305497B1
EP1305497B1 EP01945316A EP01945316A EP1305497B1 EP 1305497 B1 EP1305497 B1 EP 1305497B1 EP 01945316 A EP01945316 A EP 01945316A EP 01945316 A EP01945316 A EP 01945316A EP 1305497 B1 EP1305497 B1 EP 1305497B1
Authority
EP
European Patent Office
Prior art keywords
connection
drill string
nipple
coupling
linkage
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.)
Expired - Lifetime
Application number
EP01945316A
Other languages
German (de)
English (en)
Other versions
EP1305497A1 (fr
Inventor
Dieter Wurm
Elmar Koch
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.)
Tracto Technik GmbH and Co KG
Original Assignee
Tracto Technik 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 Tracto Technik GmbH and Co KG filed Critical Tracto Technik GmbH and Co KG
Publication of EP1305497A1 publication Critical patent/EP1305497A1/fr
Application granted granted Critical
Publication of EP1305497B1 publication Critical patent/EP1305497B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a rod coupling, as it is known for connecting the rod sections of equipment for trenchless laying or replacement of pipelines and takes the priority of the German utility model 200 12 524.9, to which reference is made.
  • individual rod sections are lined up, connected to each other and moved by means of a feed device with a propellant head through the soil.
  • the rod sections may have only a small length, so that the Bohrvortrieb, for example, to create a pilot hole, characterized by a constant connection of the rod sections to a total linkage.
  • Bohrvortrieb for example, to create a pilot hole, characterized by a constant connection of the rod sections to a total linkage.
  • linkage connections that meet the requirements for the transmission of torque, train, pressure, especially impact, but also bending and withstand the forces that occur without difficulty in making or breaking the connection with it .
  • positive linkage compounds have been developed, as described for example in German Patent 196 08 980.
  • Such linkage couplings facilitate the manufacture and release of the linkage, but have the disadvantage of an axial play, which has a negative impact especially in impact drilling.
  • the axial play results in the transmission of a shock pulse to a vibration of the coupling elements, which brings with it a loss of power.
  • Another form-fitting based linkage connection is the spigot connection, as known in the art.
  • the linkage coupling in the form of a pin located in a blind hole on one or more radial holes, in which for establishing the connection Locking bolts are driven.
  • the pins - with little play - bring in difficult and can hardly be solved from the radial bore or - in a larger game for the purpose of facilitating the connection and release of the clutch - again a vibration, especially when transmitting impact energy, is inevitable.
  • the radial bore causes a significant weakening of the breaking strength of the linkage coupling under bending load, so that in practice there is a fracture of the rod coupling in the region of the radial bore.
  • the invention is an object of the invention to provide a linkage connection, which allows a good impact and torque transmission, avoids axial play and yet easy to connect and disconnect.
  • the invention is based on the idea to combine the advantages of backlash of the threaded connection and the advantageous torque transmission of a positive connection in a single clutch by a positive engagement is fixed by an additional threaded connection.
  • Such a connection ensures easy coupling of the rod sections, for example by inserting a pin into a blind hole and a simple fixing of the connection, for example by tightening a union nut connecting the two rod sections.
  • a defined and reliable torque transmission is ensured by the positive engagement of pin or nipple and blind hole, a reliable substantially backlash-free fixation of the pin in the blind hole through the nut and thus a lossless impact transmission over the end face of the pin.
  • the generally compared to the impact forces considerably lower tensile forces, such as occur when retracting the linkage, are of the union nut reliably received and forwarded, without causing a change in the torque, since the rotation is transmitted through the pin connection.
  • the union nut can be dimensioned differently. In any case, a striking energy or a torque need not absorb these.
  • connection is preferably formed as a plug connection of a arranged at one end of the linkage nipple with a corresponding sleeve at the other end of the linkage.
  • the nipple deviates from a circular cross section and is particularly preferably designed as a rounded polygon nipple with different radii.
  • the corresponding polygonal sleeve corresponds to this.
  • a rod section 1 with a through hole 14 for the transport of a drilling fluid has at its ends coupling means 10, 15th
  • the coupling means 10, 15 consist of an end arranged coupling nipple 10 and an opposite blind hole-like coupling sleeve 15.
  • the coupling nipple 10 is formed in its cross-section, as the coupling sleeve 15 polygonal.
  • the polygon is formed as a combination of a total of eight circular arc segments 21, 22 with a total of two alternately arranged radii.
  • the side surface of the polygon is formed by the four Kreisbogensegemente of the larger radius and the original edges of the polygon as a circular arc segment of the smaller radii. This allows an improved power flow over a conventional surface / edge polygon without sacrificing a positive engagement.
  • the rod assembly has in the region of the coupling nipple a union nut 4 with an internal thread, which corresponds to an external thread on the outer surface of the connecting sleeve and the sleeve-side end of the rod section.
  • the coupling is secured by a seal 3 against leakage of drilling fluid flowing in the central bore 14.
  • the end face 16 is located on the bottom 17 of the blind-hole-like sleeve 15, that a thrust and in particular an impact force on these surfaces between the rod sections is forwarded.
  • a torque acting on the linkage connection is conducted via the polygonal contact surface between the blind-hole-type connecting sleeve 15 and the connecting nipple 10, while the union nut 4 merely acts as a fixing to ensure an axially play-free connection and to transmit tensile forces.

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)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)

Claims (7)

  1. Train de tiges comprenant des tronçons de tiges et un accouplement ou raccord de tiges pour relier des tronçons de tiges à l'aide de moyens de solidarisation par concordance de formes ou à engagement positif, caractérisé par le fait que lesdits moyens (10, 15) de solidarisation par concordance de formes sont de réalisation dépourvue de filetage et les tronçons de tiges peuvent être reliés avec absence de jeu axial, à l'aide d'une liaison filetée supplémentaire.
  2. Train de tiges selon la revendication 1, caractérisé par le fait que les moyens de solidarisation par concordance de formes sont réalisés sous la forme d'un mamelon (10) et d'un fourreau (15) du type trou borgne.
  3. Train de tiges selon la revendication 1 ou 2, caractérisé par le fait que les moyens de solidarisation par concordance de formes sont de section transversale polygonale.
  4. Train de tiges selon l'une des revendications précédentes, caractérisé par le fait que la configuration polygonale comprend des surfaces arrondies et des bords arrondis, sachant que les bords arrondis, d'une part, et les surfaces arrondies, d'autre part, matérialisent des segments (21, 22) en arc de cercle présentant des rayons différents.
  5. Train de tiges selon l'une des revendications précédentes, caractérisé par le fait que les rayons des bords arrondis sont choisis entre 10 et 20 mm, et les rayons des surfaces arrondies sont choisis entre 85 et 175 mm.
  6. Train de tiges selon l'une des revendications précédentes, caractérisé par le fait que la liaison filetée est réalisée sous la forme d'un écrou d'accouplement (4).
  7. Train de tiges selon l'une des revendications précédentes, caractérisé par un système (11) de centrage des mamelons.
EP01945316A 2000-07-20 2001-06-27 Raccord de tiges Expired - Lifetime EP1305497B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20012524U 2000-07-20
DE20012524U DE20012524U1 (de) 2000-07-20 2000-07-20 Gestängekupplung
PCT/EP2001/007321 WO2002008565A1 (fr) 2000-07-20 2001-06-27 Raccord de tiges

Publications (2)

Publication Number Publication Date
EP1305497A1 EP1305497A1 (fr) 2003-05-02
EP1305497B1 true EP1305497B1 (fr) 2006-01-11

Family

ID=7944151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01945316A Expired - Lifetime EP1305497B1 (fr) 2000-07-20 2001-06-27 Raccord de tiges

Country Status (4)

Country Link
EP (1) EP1305497B1 (fr)
AU (1) AU2001267569A1 (fr)
DE (2) DE20012524U1 (fr)
WO (1) WO2002008565A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20012524U1 (de) 2000-07-20 2000-09-21 Tracto Technik Gmbh Spezialmas Gestängekupplung
EP1947375A1 (fr) * 2007-01-16 2008-07-23 Siemens Aktiengesellschaft Raccord de tuyauterie
US20100044113A1 (en) * 2008-08-22 2010-02-25 Coiled Tubing Rental Tools, Inc. Connection for well bore drilling tools
US8869917B2 (en) 2011-06-22 2014-10-28 Coiled Tubing Rental Tools, Inc. Housing, mandrel and bearing assembly for downhole drilling motor
DE102018107507A1 (de) 2018-03-28 2019-10-02 Voss Automotive Gmbh "Anschlussvorrichtung für Medienleitungen"
EP3608572B1 (fr) * 2018-08-10 2023-05-17 R. Nussbaum AG Raccord de tuyauterie
DE102018008533A1 (de) * 2018-10-31 2020-04-30 Tracto-Technik Gmbh & Co. Kg Gestängeschuss eines Erdbohrgestänges
CN111794695B (zh) * 2020-08-26 2022-03-29 辽宁工程技术大学 一种可以与地震勘探用钻探杆快接结构对接的地震勘探设备
EP4086426A1 (fr) 2021-05-03 2022-11-09 TRACTO-TECHNIK GmbH & Co. KG Accouplement de tiges d'une tige de tarière

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2294004A (en) * 1940-09-25 1942-08-25 Serafino Louis Demountable drill bit
US4206821A (en) * 1978-09-08 1980-06-10 Fansteel Inc. Roof drill and drill rod system
DE3812211A1 (de) * 1988-04-13 1989-11-02 Preussag Ag Bauwesen Schraubverbindungen fuer steigrohre fuer pumpen in brunnen
DE29900952U1 (de) * 1998-02-12 1999-04-15 Weinhold Karl Kupplung für Rohre oder Schläuche
DE19846373B4 (de) 1998-10-08 2004-03-04 Suspa Compart Ag Dämpfer
WO2000066929A1 (fr) * 1999-04-29 2000-11-09 Grant Prideco, Inc. Raccord d'outil bloque en rotation, pour raccorder ensemble des tronçons de tubes de forage
NO310372B1 (no) * 1999-08-02 2001-06-25 Bakke Technology As Delt koplingsanordning med gjennomgående boring
DE20012524U1 (de) 2000-07-20 2000-09-21 Tracto Technik Gmbh Spezialmas Gestängekupplung

Also Published As

Publication number Publication date
AU2001267569A1 (en) 2002-02-05
DE50108677D1 (de) 2006-04-06
DE20012524U1 (de) 2000-09-21
EP1305497A1 (fr) 2003-05-02
WO2002008565A1 (fr) 2002-01-31

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