WO2015034614A1 - Système d'alésage de joint de tubage modulaire - Google Patents

Système d'alésage de joint de tubage modulaire Download PDF

Info

Publication number
WO2015034614A1
WO2015034614A1 PCT/US2014/049680 US2014049680W WO2015034614A1 WO 2015034614 A1 WO2015034614 A1 WO 2015034614A1 US 2014049680 W US2014049680 W US 2014049680W WO 2015034614 A1 WO2015034614 A1 WO 2015034614A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembly
modules
dimension
enlarged
seal
Prior art date
Application number
PCT/US2014/049680
Other languages
English (en)
Inventor
Martin FARQUHAR
Donald E. Murray
Original Assignee
Baker Hughes Incorporated
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 Baker Hughes Incorporated filed Critical Baker Hughes Incorporated
Publication of WO2015034614A1 publication Critical patent/WO2015034614A1/fr

Links

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
    • E21B17/042—Threaded
    • E21B17/0423—Threaded with plural threaded sections, e.g. with two-step threads

Definitions

  • the field of the invention is seal bores and more particularly where the needed space out variation is longer than the length of a standard tubular so that a modular design makes a seal bore to a desired length beyond the length of a standard tubular.
  • the present invention comprises the concept of a modular seal bore that allows attainment of any desired length as the seal bore is assembled and run in the hole.
  • a variety of connection designs are contemplated to be able to join the modules and get the target length.
  • the inside dimension where the modules contact comes in for special treatment to ensure that even if there is a dimensional difference across the contact location of adjacent modules that such difference is positioned sufficiently far from the seal assembly that can pass by in either direction so that there is no seal assembly damage or in the differential pressure capacity of the connection.
  • the adjoining seal bore surfaces across the connection have a taper so that there is a smooth transition in the seal bore wall and that even if the pin and box tolerances all add up in the same direction that any such dimensional difference is spaced sufficiently far from the outside dimension of the seal assembly that there is no physical damage to the seal assembly.
  • the length of the seal assembly exceeds the length of the tapered surfaces so that sealing integrity is maintained as the seal assembly moves relative to the seal bore.
  • a seal bore is provided in a modular form so that a desired length of continuous seal bore can be provided with modules that are preferably secured to each other with threads.
  • the modular concept allows overall seal bore lengths to go beyond the 20 meter limit that previously existing that could be attained with honing equipment entering opposed ends of a tubular.
  • the modules abut each other as the threaded connection is made up.
  • a transition zone extends in opposed direction on opposed sides of a connection that retracts the contact location between modules far enough so that even if the dimensional tolerances all go to the extreme in the pin and box that make the connection, a surface irregularity will be sufficiently small as to avoid seal stack contact that can result in potential seal damage.
  • the seal stack length spans the transition zone to preserve sealing integrity.
  • FIG. 1 is a section view of modules of different size assembled into a single seal bore
  • FIG. 2 is a detailed view at a connection between modules showing opposing tapers to a connection contact location at the seal bore;
  • FIG. 3 is an alternative to the opposing tapers of FIG. 2 showing adjacent arcuate surfaces.
  • FIG. 1 A modular seal bore assembly is illustrated in FIG. 1. It has modules 10 and 12 that can be of the same or different lengths. The modules connect with a thread form and design 14 that is known in the art to form a continuous polished bore surface generally designated as 16.
  • FIG. 2 shows in more detail what occurs at the thread 14 between a pin 18 and a box 20 on connected modules 10 and 12.
  • the thread 14 in the preferred embodiment is a two-step thread where the pin nose 22 contacts a shoulder 24 on the box 20 marking a transition line 26 at the seal bore surface 16 that extends over as many modules as the application requires.
  • transition line 26 can potentially snag a seal or seals 28 of an assembly on mandrel 30 that is insertable or removable from the seal bore 16 defined by modules 10 and/or 12.
  • One way to address this potential problem that can damage the seals 28 is to provide tapers 32 and 34 in mirror image that extend to the transition line but can also transition to a parallel orientation with the seal bore 16 short of transition line 26. In this manner the transition line 26 is at a greater diameter than the seal bore 16 on either side of the tapers 32 and 34.
  • the preferred taper angle is 2 degrees however larger or smaller angles can be used depending on the inside diameter of seal bore 16 and the amount of anticipated potential radial offset at the transition line 26 from the manufacturing process of a pin 18 and a box 20 that may be assembled to each other.
  • the object is to recess the radial offset from the manufacturing process sufficiently that at the greatest envisioned offset there will not be a protrusion into the nominal seal bore 16 dimension taken outside the transition portions such as tapers 32 and 34. While the preferred angle for the tapers 32 and 34 is 2 degrees a range of .5 degrees to about 5 degrees is contemplated. It is also contemplated that at the top of the ramp, furthest from transition line 26 be rounded to avoid a line transition that could potentially do harm to a seal 28.
  • FIG. 3 illustrates an alternative embodiment showing the transition line 26 put in a recessed configuration with mirror image transitions 40 and 42.
  • the objective is to retract any ledge at the transition line 26 sufficiently far so that any part of the seals 28 will not snag on the ledge and rip or otherwise fail or get stuck.
  • the present invention presents an ability to assembly seal bores at the surface to a desired length using modules of the same or different sizes that can be attached together, preferably with standard thread forms and more preferably a two-step thread.
  • the shape of the seal bore is altered on opposed sides so that any ledges caused by machining tolerances is within the recess so that movement of seals in either direction past the transition line will not damage the seal assembly or cause loss of sealing as the seal stack is longer than the mirror image transition segments.
  • the transitions can be planar or arcuate or combinations thereof or can be other configurations that get the transition line out of contact with the passing seal assembly in opposed directions.

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)
  • Gasket Seals (AREA)

Abstract

L'invention concerne un alésage de joint qui est fourni sous forme modulaire de telle sorte qu'une longueur voulue d'alésage de joint continu peut être fournie avec des modules qui sont fixés de préférence l'un avec l'autre avec des filetages. La conception modulaire permet à des longueurs d'alésage de joint totales de s'étendre au-delà de la limite des 20 m qui existait précédemment et qui pouvait être atteinte avec un matériel de pierrage entrant par des extrémités opposées d'un élément tubulaire. Les modules viennent en butée l'un contre l'autre à mesure que la connexion par filetage est exécutée. Une zone de transition s'étend dans une direction opposée sur des côtés opposés d'un raccord qui rétracte l'emplacement de contact entre des modules suffisamment loin de telle sorte que même si les tolérances dimensionnelles vont jusqu'à l'extrême dans la broche et la boîte qui font la connexion, une irrégularité de surface sera suffisamment petite pour éviter un contact d'empilement de joint qui peut résulter en un endommagement de joint potentiel. La longueur d'empilement de joint enjambe la zone de transition pour préserver l'intégrité de l'étanchéité.
PCT/US2014/049680 2013-09-06 2014-08-05 Système d'alésage de joint de tubage modulaire WO2015034614A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/020,259 2013-09-06
US14/020,259 US20150069752A1 (en) 2013-09-06 2013-09-06 Modular Tubing Seal Bore System

Publications (1)

Publication Number Publication Date
WO2015034614A1 true WO2015034614A1 (fr) 2015-03-12

Family

ID=52624878

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/049680 WO2015034614A1 (fr) 2013-09-06 2014-08-05 Système d'alésage de joint de tubage modulaire

Country Status (2)

Country Link
US (1) US20150069752A1 (fr)
WO (1) WO2015034614A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021525343A (ja) * 2018-05-25 2021-09-24 ヴァルレック オイル アンド ガス フランス 管状ねじ接続部
JP2021525344A (ja) * 2018-05-25 2021-09-24 ヴァルレック オイル アンド ガス フランス 管状ねじ接続部

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA119127C2 (uk) * 2015-12-15 2019-04-25 Ніппон Стіл Енд Сумітомо Метал Корпорейшн Нарізне з'єднання для сталевої труби

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4953617A (en) * 1989-10-19 1990-09-04 Baker Hughes Incorporated Apparatus for setting and retrieving a bridge plug from a subterranean well
US5228516A (en) * 1992-01-14 1993-07-20 Halliburton Company Tester valve
US20110180252A1 (en) * 2003-05-13 2011-07-28 Stinger Wellhead Protection, Inc. Casing mandrel for facilitating well completion, re-completion or workover
US20120152521A1 (en) * 2011-02-28 2012-06-21 Akkerman Neil H Disconnect assembly for cylindrical members
CN202946041U (zh) * 2012-12-12 2013-05-22 衡阳华菱钢管有限公司 气密封锯齿形油井管螺纹接头结构

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JPS58157087U (ja) * 1982-04-16 1983-10-20 日本鋼管株式会社 油井管用ネジ継手
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EP1860277B1 (fr) * 2006-05-22 2015-02-11 Weatherford Technology Holdings, LLC Appareil et procédés pour protéger les connexions
FR2923283B1 (fr) * 2007-11-07 2012-10-05 Vallourec Mannesmann Oil & Gas Joint filete comprenant au moins un element filete avec levre d'extremite pour tube metallique.
FR2956466B1 (fr) * 2010-02-17 2012-06-08 Vallourec Mannesmann Oil & Gas Joint filete expansible et procede de realisation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4953617A (en) * 1989-10-19 1990-09-04 Baker Hughes Incorporated Apparatus for setting and retrieving a bridge plug from a subterranean well
US5228516A (en) * 1992-01-14 1993-07-20 Halliburton Company Tester valve
US20110180252A1 (en) * 2003-05-13 2011-07-28 Stinger Wellhead Protection, Inc. Casing mandrel for facilitating well completion, re-completion or workover
US20120152521A1 (en) * 2011-02-28 2012-06-21 Akkerman Neil H Disconnect assembly for cylindrical members
CN202946041U (zh) * 2012-12-12 2013-05-22 衡阳华菱钢管有限公司 气密封锯齿形油井管螺纹接头结构

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021525343A (ja) * 2018-05-25 2021-09-24 ヴァルレック オイル アンド ガス フランス 管状ねじ接続部
JP2021525344A (ja) * 2018-05-25 2021-09-24 ヴァルレック オイル アンド ガス フランス 管状ねじ接続部
JP7352578B2 (ja) 2018-05-25 2023-09-28 ヴァルレック オイル アンド ガス フランス 管状ねじ接続部
JP7408576B2 (ja) 2018-05-25 2024-01-05 ヴァルレック オイル アンド ガス フランス 管状ねじ接続部

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