JP2015520830A - Movable joint - Google Patents

Movable joint Download PDF

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Publication number
JP2015520830A
JP2015520830A JP2015507595A JP2015507595A JP2015520830A JP 2015520830 A JP2015520830 A JP 2015520830A JP 2015507595 A JP2015507595 A JP 2015507595A JP 2015507595 A JP2015507595 A JP 2015507595A JP 2015520830 A JP2015520830 A JP 2015520830A
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JP
Japan
Prior art keywords
rotating
movable joint
tubular
socket
clamp
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.)
Pending
Application number
JP2015507595A
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Japanese (ja)
Inventor
キャンベル‐スミス,グレゴリー
Original Assignee
ファースト・サブシー・リミテッド
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
Priority to GB1207167.6 priority Critical
Priority to GB1207167.6A priority patent/GB2501489A/en
Application filed by ファースト・サブシー・リミテッド filed Critical ファースト・サブシー・リミテッド
Priority to PCT/GB2013/051032 priority patent/WO2013160672A2/en
Publication of JP2015520830A publication Critical patent/JP2015520830A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/002Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP 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
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP 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
    • E21B17/01Risers
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP 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
    • E21B17/01Risers
    • E21B17/017Bend restrictors for limiting stress on risers
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/002Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
    • E21B19/004Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/02Rod or cable suspensions
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16Connecting or disconnecting pipe couplings or joints
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E21B43/0107Connecting of flow lines to offshore structures

Abstract

A socket member having an inner surface defining a cavity, and a rotating member having an outer surface corresponding to the cavity, the rotating member being pivotally supported so as to rotate in the cavity. A movable joint suitable for connection with a tubular member. The rotating member defines a cylindrical bore that penetrates the rotating member, has an inner surface about the longitudinal axis of the rotating member, and the cylindrical bore is configured to receive a tubular member Is done. The movable joint further comprises a releasable locking mechanism for releasably locking the tubular member within the cylindrical bore so that when the tubular member is locked within the cylindrical bore, the tubular The member and the rotating member are fixed with respect to each other and are rotatable with respect to the socket member. The locking mechanism includes a cage coupled to the rotating member and having a plurality of windows that partially close the recesses in the inner surface of the rotating member, the recesses being longitudinally parallel to the longitudinal axis. Elongate in the direction, accommodates the roller and has a base inclined in the longitudinal direction, so that at the lower end of each recess, the roller projects through the window and at the upper end of each recess , The roller will not protrude much or at all.

Description

  The present invention relates to a movable joint, and more particularly to a movable casing that can be releasably locked with respect to a tubular member such as a well casing member, a drill string tube member, a pipe member, a collar tube member, or a steel catenary riser (SCR). Related to fittings.
  Excavation of underground wells involves the use of a number of tube-shaped members, especially for reasons of rotation and versatility. For example, the well casing member, drill string tube member, pipe member, collar tube member, and steel catenary riser (SCR) each have a generally tubular shape. Such tubular members often need to rise from the sea and be attached to structures such as rigs or otherwise fixed. However, assuming that the movement of the tubular member is caused by the ocean, there is a risk of fatigue or damage to the tubular member and / or the structure to which the tubular member is attached due to the movement of the tubular member. Joints that include dampers (eg rubber dampers) alleviate this problem to some extent, but the elastic properties of the dampers result in biasing forces that may be undesirable or damage to the tubular member Apply additional force that may give
  It is an object of the present invention to provide an improved joint that alleviates at least some of the problems associated with the prior art.
  The invention is defined in the appended claims.
According to one aspect of the present invention, a movable joint suitable for connection with a tubular member,
A socket member having an inner surface defining a cavity;
A rotating member having an outer surface corresponding to the cavity, the rotating member pivotally supported to rotate within the cavity,
The rotating member defines a cylindrical bore that penetrates the rotating member, has an inner surface about the longitudinal axis of the rotating member, and the cylindrical bore is configured to receive a tubular member The movable joint further comprises a releasable locking mechanism for releasably locking the tubular member within the cylindrical bore, whereby the tubular member is locked within the cylindrical bore; A movable joint is provided in which the tubular member and the rotating member are fixed relative to each other and are rotatable relative to the socket member.
  Preferably, the hollow portion corresponds to a spherical segment, and the rotating member is a ball member having an outer surface corresponding to a spherical segment complementary to the hollow portion. The ball member preferably has three degrees of freedom of rotation with respect to the socket member.
  The movable joint preferably further comprises one or more restricting members configured to restrict the rotational movement of the rotating member relative to the socket member.
  The locking mechanism includes a cage coupled to the rotating member and having a plurality of windows partially closing the recesses in the inner surface of the rotating member, the recesses being longitudinally parallel to the longitudinal axis And has a base that is inclined in the longitudinal direction, so that at the lower end of each recess, the roller protrudes through the window and at the upper end of each recess, The rollers do not protrude very much or at all. The rotating member is preferably an outer sleeve having a truncated cone-shaped bore centered on the longitudinal axis, and a frusto-conical shape configured to match a side surface, an end surface, and the truncated cone-shaped bore. A clamp member in a sleeve formed by a clamp segment, each having an outer surface and a cylindrical inner surface defining the cylindrical bore, the cage comprising a cage segment for each clamp segment. More preferably, each of the clamp segments has a lift eye to allow the clamp elements to be lifted relative to the sleeve so that the clamp segments slide upward from the frustoconical bore. As they progress, they separate from each other in the circumferential direction.
  The key on one of the frustoconical surfaces is preferably engageable in a groove in the other of the frustoconical surface so that the torque applied to the clamp segment is Is transmitted to the sleeve. The key is preferably slidable within the slot, and the key and the slot are parallel to the cone angle of the frustoconical surface.
  In one preferred configuration, there are three clamp segments.
  In a further or alternative preferred configuration, a biasing mechanism biases the clamp segments away from each other in the circumferential direction, preferably the biasing mechanism preferably between the side surfaces of the clamp segments. It is a spring arranged between them.
  Between the movable joint clamping position and the open position, the clamping segment is preferably from a position where the arcuate portions of the cage segments are located within a common cylindrical surface and the frustoconical surfaces are coplanar with each other. The side surfaces are separated from each other, and the frustoconical surfaces move to a release position having only line contact with each other.
  In a preferred embodiment, the frustoconical surface is a partially cylindrical surface inclined towards the longitudinal axis.
  The roller is preferably a ball, and the recess preferably has a semicircular base with a diameter substantially equal to the diameter of the ball.
  In a preferred configuration, one or both of the outer surface of the rotating member and the inner surface of the socket member is provided with a low friction surface to allow rotation of the rotating member relative to the socket member. In a further or alternative configuration, the movable joint further comprises a bearing between the rotating member and the socket member to allow rotation of the rotating member relative to the socket member.
  In a preferred embodiment, the cylindrical bore extends through the rotating member so as to have two open ends, and the socket member allows the tubular member to protrude from both open ends of the cylindrical bore. It is comprised around the rotating member. The socket member preferably comprises two socket segments that are connectable to each other around the rotating member.
  Alternatively, the cylindrical bore is a blind hole bore having only one open end, and the socket member is rotated to allow the tubular member to protrude from the open end of the cylindrical bore. Constructed around the member.
  The movable joint preferably comprises a tubular member, preferably said tubular member is one of a well casing member, a drill string tube member, a pipe member, a collar tube member, and a steel catenary riser (SCR). .
  Hereinafter, embodiments of the present invention will be further described with reference to the accompanying drawings.
It is a fracture view of a movable joint by one embodiment of the present invention. It is sectional drawing of the movable joint by one Embodiment of this invention. FIG. 4 is a detailed cross-sectional view of a part of the movable joint of FIG. 3.
  FIG. 1 shows a cutaway view of a movable joint 10 according to one embodiment of the present invention. The joint 10 includes a socket member 12 and a rotating member 14 that can rotate within the socket member. The socket member 12 has an inner surface 13 that defines a cavity, and the rotating member 14 has an outer surface 16 a that corresponds to the cavity formed by the inner surface 13 of the socket member 12. In the embodiment of FIG. 1, the socket member 12 is formed from two socket segments 12 a, 12 b that are interconnected around the rotating member 14.
  The rotating member 14 has an inner surface 22 that defines a substantially cylindrical bore configured to receive the tubular member 100 within the rotating member 14. The tubular member may be one of a well casing member, a drill string tube member, a pipe member, a collar tube member, and a steel catenary riser (SCR), but is not necessarily limited thereto. Indeed, the present invention is suitable for use with any suitable substantially tubular member.
  The joint 10 further includes a releasable locking mechanism (described in further detail below) for releasably locking the tubular member 100 within the cylindrical bore of the rotating member 14. When the tubular member 100 is locked to the rotating member 14 by the lock mechanism, the tubular member 100 and the rotating member 14 are substantially fixed with respect to each other and become movable as a connecting unit. 100 can rotate in the cavity of the socket member 12.
  In the specific embodiment shown in FIG. 1, the rotating member 14 is a ball member having an outer surface corresponding to a spherical segment that is complementary to the cavity of the socket member 12. In fact, the cavity of the socket member 12 corresponds to a spherical segment in the embodiment of FIG. The ball member 14 has three degrees of freedom of rotation with respect to the socket member 12. Indeed, the ball member 14 (and the tubular member 100 when locked therein) is rotatable about each of the x, y and z axes shown in FIG. The coupling 10 may include a limiting member that is positioned and configured to limit the rotational movement of the ball member 14 relative to the socket member 12. For example, the restricting member may be arranged to prevent the tubular member 100 from contacting the socket member 12 due to rotation of the ball member 14.
  The ball member 14 of FIG. 1 includes an outer sleeve 16, and the outer surface of the outer sleeve 16 becomes the outer surface 16 a of the ball member 14. The outer sleeve 16 has an inner surface 16b that defines a truncated conical bore about the longitudinal axis 200 of the ball member 14 (see FIG. 2). A clamp member 18 formed from three clamp segments 18a, 18b, 18c is disposed in the truncated cone bore. Each of the clamp segments 18a, 18b, 18c has a side surface 19d, end surfaces 19b, 19c, and a frustoconical outer surface 19a configured to match the frustoconical bore of the outer sleeve 16. In a preferred embodiment (not shown in these drawings), engageable in one of the frustoconical surfaces 19a, 16b or in the other groove of the frustoconical surfaces 19a, 16b. Such that torque applied to the clamp segments 18a, 18b, 18c (e.g., by movement of the tubular member 100 secured within the clamp segments 18a, 18b, 18c) is transmitted to the sleeve 16, The entire ball member 14 rotates relative to the socket member 12. In a particularly preferred embodiment, the key is slidable within the slot, and both the key and the slot are oriented parallel to the cone angle of the truncated conical surface 19a, 16b.
  The clamp segments 18a, 18b, 18c are removable from the sleeve 16 so that they can be assembled around the tubular member 100 within the sleeve 16. With this configuration, the tubular member 100 having a flange-like or other radially projecting portion has the clamp member 18 (that is, the clamp segments 18 a, 18 b, 18 c forming the clamp member 18) is cut off from the sleeve 16. It is possible to pass through the ball member 14 before being assembled around the tubular member 100 in the conical bore.
  When assembled, the clamp segments 18a, 18b, 18b are arranged with their side surfaces 19 abutting against the side surfaces 19 of the adjacent clamp segments 18a, 18b, 18c. The clamp segments 18a, 18b, 18c may be provided with a biasing mechanism that biases the clamp segments away from each other in the circumferential direction, so that the clamp segments are lifted out of the frustoconical bore. The clamp segments are separated. The biasing mechanism is preferably a spring disposed between the side surfaces 19 of the clamp segments 18a, 18b, 18c.
  The inner surfaces of the clamp segments 18a, 18b, 18c are provided with a plurality of recesses 24 each accommodating a roller 26 (at least partially). In addition, a cage 28 surrounds the cylindrical bore, in which case the inner surface of the cage 28 becomes the inner surface 22 of the ball member 14 that defines the cylindrical bore. The cage 28 is formed from cage segments (not shown separately), each cage segment being associated with one of the clamp segments 18a, 18b, 18c. The cage 28 has a plurality of windows 18 a that partially close the recess 24. Each recess has an elongated base in the longitudinal direction parallel to the longitudinal axis and has a base inclined in the longitudinal direction. Therefore, at the lower end 24a of each recess 24, the roller 26 projects through the window 28a ( At the upper end 24b of the recess 24, as shown in FIGS. 2 and 3, the roller 26 does not project so much or not (not shown). The cage segment is connected to the clamp segments 18a, 18b, 18c by a collar 20 also formed in the segments 20a, 20b, 20c.
  As described above, the clamp segments 18a, 18b, 18c are movable between a clamped position and an open position (ie, an assembled position and a non-assembled position), and in the clamped position, the arc segment of the cage segment is Located in a common cylindrical surface, the frustoconical surfaces 19a, 16b are located in the same plane with each other, and in the open position, the side surfaces 19 are spaced apart from each other, the frustoconical surface 19a, 16b have only line contact between them. Each of the clamp segments 18a, 18b, 18c may have a lift eye to allow it to be lifted with respect to the sleeve 16, so that the clamp segments 18a, 18b, 18c are located above the frustoconical bore. And move away from each other in the circumferential direction as they progress.
  In one embodiment, the frustoconical surfaces 19 a, 16 b are partial cylindrical surfaces that are inclined toward the longitudinal axis 200.
  In use, the tubular member 100 is positioned within the cylindrical bore and moved downward relative to the ball member 14 (as indicated by direction A in FIG. 3). The roller 26 is moved downward toward the lower end 24a of the recess, thereby gradually protruding through the window 28a (that is, radially inward), biting into the tubular member 100, and “Lock” the tubular member 100 with respect to the member 14. In order to remove the tubular member 100 from the ball member 14, the tubular member 100 must be moved upward relative to the ball member 14 (as indicated by direction B in FIG. 3), thereby causing the roller 26 to move. Is moved towards the upper end 24 b of the recess 24 where it does not protrude so much and allows further movement of the tubular member 100 relative to the ball member 14. Accordingly, by disposing the roller 26 in the recess 24, a releasable lock mechanism that releasably connects the tubular member 100 to the ball member 14 is formed. As described above, when the tubular member 100 is locked with respect to the ball member 14, the tubular member 100 and the ball member 14 can rotate together as a unit with respect to the socket 12.
  Each roller 26 may be or include a substantially spherical member, such as a steel ball bearing. However, other materials and shapes are also included within the scope of this disclosure. For example, each roller 26 may alternatively be a cylindrical or tapered pin configured to roll up and down on the ramp defined by the recess 24.
  Additionally or alternatively, the cage 28 (or each cage segment thereof) can be biased in a direction parallel to the longitudinal axis 200 to bias the roller 26. This configuration may allow for a smaller window 28a in the cage 28 that allows the roller 26 to protrude from the window 28a but not drop off. The biased cage 28 is moved axially (i.e., up or down parallel to the longitudinal axis 200), thereby causing the upper end 24b or the lower end 24a of the recess 24 to move. The roller 26 can be biased to move between the engaged position and the disengaged position. The biased cage 28 can be mechanically spring biased or hydraulically driven.
  The above-described embodiment is a particularly preferable configuration of the movable joint 10 of the present invention, but the present invention is not limited to the specific configuration. Indeed, the rotating member 14 may have a shape in which the cavity formed by the socket member 12 is not a spherical segment corresponding to the shape of the rotating member 14 (eg, to form a condylar joint).
  The outer surface 16a of the rotating member 14 and / or the inner surface 13 of the socket member 12 can be configured with low friction so as to allow movement of the rotating member 14 relative to the socket member 12. Indeed, the friction of the surfaces 16a, 13 can be set to allow a desired amount or ratio of relative movement of the rotating member 14 relative to the socket member 12. Additionally or alternatively, bearing members and / or lubricants may be disposed between them to allow relative movement between the rotating member 14 and the socket member 12.
  The cylindrical bore of the rotating member 16 may penetrate completely through the rotating member 16 such that the cylindrical bore has two open ends (as shown). Alternatively, the cylindrical bore may be a blind hole bore having only a single open end so that the cylindrical bore does not completely penetrate the rotating member 16. In any case, the socket member 12 should be configured around the rotating member 14 such that the rotating member 14 is rotatable and the tubular member 100 is received by the socket member 12.
  The rotating member 14 has been described as being composed of various segmented components. One skilled in the art will appreciate that the exact number of segments described is not limiting and the present invention may include any suitable number of segments. For example, in an alternative embodiment, the rotating member 14 may be formed entirely of non-segmented components as opposed to the segmented components described. Actually, the rotating member 14 may be composed of a single component and a locking mechanism for locking the tubular member 100 to the rotating member 14.
  In use, the socket member 12 is attached to the socket member 12 and the socket member 12 while the tubular member 100 locked to the rotating member 14 can move relative to the socket member 12 and the structure attached to the socket member 12. It may be secured to a rig or other structure so that it can remain fixed in an axial direction relative to the structured structure (ie, along a direction parallel to the longitudinal axis 200). Among other advantages, the present invention provides a configuration in which the structure with tubular member 100 and / or socket member 12 is subjected to lower fatigue and stress while maintaining a connection therebetween.
  Throughout the description and claims, the terms “comprising” and “including” and variations thereof mean “including but not limited to” and include other parts, additions, components. It is not intended (and not excluded) to exclude completeness, or steps. Throughout this description and the claims, the singular forms include the plural unless the context requires otherwise. In particular, where indefinite articles are used, the specification should be understood as expecting plural and singular unless the context requires otherwise.
  Any feature, completeness, property, complex, chemical moiety, or group described in combination with a particular aspect, embodiment, or example of the invention is described herein as long as it is compatible. It should be understood that it is applicable to any other aspect, embodiment, or example described. All features disclosed in this specification (including any appended claims, abstract, and drawings) and / or every step of any method or process so disclosed are inclusive of such features and A combination may be combined in any combination except combinations where at least some of the steps are mutually exclusive. The invention is not limited to the details of any foregoing embodiments. The invention extends to and / or to any novel one or any novel combination of features disclosed in this specification (including any appended claims, abstract and drawings). The scope extends to any new one or any new combination of any method or process steps disclosed in.
  The reader's attention is directed to all documents and documents submitted at the same time as or prior to this specification for this application and submitted to public inspection with this specification. The contents of the document are incorporated herein by reference.

Claims (21)

  1. A movable joint suitable for connection with a tubular member,
    A socket member having an inner surface defining a cavity;
    A rotating member having an outer surface corresponding to the cavity portion, the rotating member being pivotally supported to rotate within the cavity portion,
    The rotating member defines a cylindrical bore extending through the rotating member, and has an inward surface about the longitudinal axis of the rotating member, the cylindrical bore receiving a tubular member The movable joint further comprises a releasable locking mechanism for releasably locking the tubular member within the cylindrical bore, whereby the tubular member is locked within the cylindrical bore The tubular member and the rotating member are fixed relative to each other and are rotatable relative to the socket member;
    The locking mechanism includes a cage coupled to the rotating member and having a plurality of windows that partially close the recess in the inner surface of the rotating member, the recess being parallel to the longitudinal axis. An elongated base in the longitudinal direction, containing a roller and having a base inclined in the longitudinal direction, so that at the lower end of each recess, the roller protrudes through the window and the upper end of each recess In part, the roller does not protrude so much or at all, a movable joint.
  2.   The movable joint according to claim 1, wherein the hollow portion corresponds to a spherical segment, and the rotating member is a ball member having an outer surface corresponding to a spherical segment complementary to the hollow portion.
  3.   The movable joint according to claim 2, wherein the ball member has three degrees of freedom of rotation with respect to the socket member.
  4.   The movable joint according to any one of claims 1 to 3, further comprising one or more limiting members configured to limit rotational movement of the rotating member relative to the socket member.
  5.   The rotating member includes an outer sleeve having a truncated cone-shaped bore centered on the longitudinal axis, a side surface, an end surface, and a truncated cone-shaped outer surface configured to match the truncated cone-shaped bore; And a clamp member in the sleeve formed by a clamp segment, each having a cylindrical inner surface defining the cylindrical bore, the cage comprising a cage segment for each clamp segment. The movable joint of any one of 1-4.
  6.   Each of the clamp segments has a lift eye to allow the clamp element to be lifted relative to the sleeve so that the clamp segments slide upward from the frustoconical bore and progress as they progress. The movable joint according to claim 5, wherein the movable joint is separated from each other in the circumferential direction.
  7.   The key applied on one of the frustoconical surfaces is engageable in a groove in the other of the frustoconical surface so that torque applied to the clamp segment is transmitted to the sleeve. The movable joint according to claim 5 or 6, wherein:
  8.   The movable joint according to claim 7, wherein the key is slidable within the slot, and the key and the slot are parallel to a cone angle of the frustoconical surface.
  9.   9. A movable joint according to any one of claims 5 to 8, wherein there are three clamp segments.
  10.   The biasing mechanism biases the clamp segments away from each other in the circumferential direction, and the biasing mechanism is preferably a spring disposed between the side surfaces of the clamp segments. The movable joint according to any one of 5 to 9.
  11.   Between the clamp position and the open position of the movable joint, the clamp segment is positioned such that the arcuate portion of the cage segment is located within a common cylindrical surface and the frustoconical surfaces are coplanar with each other The movable joint according to any one of claims 5 to 10, wherein the side surfaces are spaced apart from each other, and the truncated conical surfaces move to a release position having only line contact with each other.
  12.   The movable joint according to any one of claims 5 to 10, wherein the frustoconical surface is a partially cylindrical surface inclined toward the longitudinal axis.
  13.   The movable joint according to any one of claims 1 to 12, wherein the roller is a ball, and the recess has a semicircular base having a diameter substantially equal to a diameter of the ball.
  14.   14. One or both of the outer surface of the rotating member and the inner surface of the socket member comprise a low friction surface to allow rotation of the rotating member relative to the socket member. The movable joint according to any one of the above.
  15.   The movable joint according to any one of claims 1 to 13, further comprising a bearing between the rotating member and the socket member in order to allow the rotating member to rotate with respect to the socket member.
  16.   The cylindrical bore extends through the rotating member so as to have two open ends, and the socket member is configured to allow the tubular member to protrude from both of the open ends of the cylindrical bore. The movable joint according to any one of claims 1 to 15, wherein the movable joint is configured around the outer periphery of the outer periphery.
  17.   The movable joint according to claim 16, wherein the socket member includes two socket segments that can be connected to each other around the rotating member.
  18.   The cylindrical bore is a blind hole bore having only one open end, and the socket member of the rotating member is such that a tubular member can protrude from the open end of the cylindrical bore. The movable joint according to claim 1, wherein the movable joint is configured around.
  19.   The movable joint according to claim 1, comprising a tubular member.
  20.   The movable joint of claim 19, wherein the tubular member is one of a well casing member, a drill string tube member, a pipe member, a collar tube member, and a steel catenary riser (SCR).
  21.   A movable joint for coupling with a tubular member substantially as herein described with reference to the accompanying drawings.
JP2015507595A 2012-04-24 2013-04-24 Movable joint Pending JP2015520830A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1207167.6 2012-04-24
GB1207167.6A GB2501489A (en) 2012-04-24 2012-04-24 Rotatable joint for receiving a tubular
PCT/GB2013/051032 WO2013160672A2 (en) 2012-04-24 2013-04-24 Moveable joint

Publications (1)

Publication Number Publication Date
JP2015520830A true JP2015520830A (en) 2015-07-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015507595A Pending JP2015520830A (en) 2012-04-24 2013-04-24 Movable joint

Country Status (5)

Country Link
US (1) US20150107847A1 (en)
JP (1) JP2015520830A (en)
KR (1) KR20150012248A (en)
GB (1) GB2501489A (en)
WO (1) WO2013160672A2 (en)

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EP3290633B1 (en) * 2014-05-29 2020-07-29 Weatherford Technology Holdings, LLC Misalignment mitigation in a rotating control device
CN104728533A (en) * 2015-04-13 2015-06-24 威海纳川管材有限公司 Bunching coiled tubing
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WO2013160672A2 (en) 2013-10-31
WO2013160672A3 (en) 2014-09-12
KR20150012248A (en) 2015-02-03
US20150107847A1 (en) 2015-04-23
GB2501489A (en) 2013-10-30

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