Internal tieback for subsea well
    1.
    发明授权
    Internal tieback for subsea well 有权
    海底内部回击

    公开(公告)号:US08127853B2

    公开(公告)日:2012-03-06

    申请号:US13036737

    申请日:2011-02-28

    CPC classification number: E21B33/038

    Abstract: A tieback connector connects a tieback conduit from an offshore platform to a subsea wellhead assembly. The tieback connector has a mandrel that is connected to a string of tieback conduit and a sleeve and load ring that are carried by the mandrel. The load ring is radially expansible and has a conical portion with internal threads. The load ring has an external grooved profile that engages an internal grooved profile in the subsea assembly. The mandrel is rotatable relative to the sleeve while in its lower position, causing the load ring to further expand outward into engagement with the internal profile. A locking member is carried below the load ring on an exterior cam surface of the mandrel. The cam surface moves the locking member outward when the mandrel moves downward into engagement with an internal profile in the subsea assembly.

    Abstract translation: 连接连接器将从海上平台的回流管道连接到海底井口组件。 连接器连接器具有心轴,该心轴连接到由心轴承载的一系列回接导管和套筒和负载环。 负载环是径向可膨胀的,并且具有带有内螺纹的锥形部分。 负载环具有外部槽形轮廓,其接合海底组件中的内部槽形轮廓。 心轴可相对于套筒旋转,同时处于其较低位置,使得负载环进一步向外膨胀以与内部轮廓接合。 锁定构件承载在心轴的外部凸轮表面上的负载环下方。 当心轴向下移动与海底组件中的内部轮廓接合时,凸轮表面将锁定构件向外移动。

    Internal Tieback for Subsea Well
    2.
    发明申请
    Internal Tieback for Subsea Well 有权
    海底内部攻坚

    公开(公告)号:US20110155382A1

    公开(公告)日:2011-06-30

    申请号:US13036737

    申请日:2011-02-28

    CPC classification number: E21B33/038

    Abstract: A tieback connector connects a tieback conduit from an offshore platform to a subsea wellhead assembly. The tieback connector has a mandrel that is connected to a string of tieback conduit and a sleeve and load ring that are carried by the mandrel. The load ring is radially expansible and has a conical portion with internal threads. The load ring has an external grooved profile that engages an internal grooved profile in the subsea assembly. The mandrel is rotatable relative to the sleeve while in its lower position, causing the load ring to further expand outward into engagement with the internal profile. A locking member is carried below the load ring on an exterior cam surface of the mandrel. The cam surface moves the locking member outward when the mandrel moves downward into engagement with an internal profile in the subsea assembly.

    Abstract translation: 连接连接器将从海上平台的回流管道连接到海底井口组件。 连接器连接器具有心轴,该心轴连接到由心轴承载的一系列回接导管和套筒和负载环。 负载环是径向可膨胀的,并且具有带有内螺纹的锥形部分。 负载环具有外部槽形轮廓,其接合海底组件中的内部槽形轮廓。 心轴可相对于套筒旋转,同时处于其较低位置,使得负载环进一步向外膨胀以与内部轮廓接合。 锁定构件承载在心轴的外部凸轮表面上的负载环下方。 当心轴向下移动与海底组件中的内部轮廓接合时,凸轮表面将锁定构件向外移动。

    SELF-INSERTING SEAL ASSEMBLY
    3.
    发明申请
    SELF-INSERTING SEAL ASSEMBLY 有权
    自动密封组件

    公开(公告)号:US20100294486A1

    公开(公告)日:2010-11-25

    申请号:US12469514

    申请日:2009-05-20

    CPC classification number: E21B41/04

    Abstract: A self-inserting seal assembly that sets a seal at a well component to allow for pressure testing of the well component. The seal assembly can be landed on a well component with an ROV. A seal is located on the lower portion of a lower body in the assembly. A set of outer dogs lock with a grooved mating profile formed on the well component to lock the outer housing to provide a reaction point for setting the seal, which may require several thousand pounds of force. A set of inner dogs lock with a grooved mating profile formed on the inner diameter of the outer housing. This locks the lower body to the outer housing to ensure the seal remains set in place. After the well component is pressure tested, the seal assembly can be unlocked and retrieved from the well via an ROV.

    Abstract translation: 一种自插式密封组件,其在井组件处设置密封以允许对井组件进行压力测试。 密封组件可以用ROV降落在井部件上。 密封件位于组件中的下部主体的下部。 一组外部锁定件,其具有形成在井部件上的带槽的配合轮廓,以锁定外部壳体,以提供用于设定密封件的反应点,其可能需要几千磅的力。 一组内部锁定,其具有形成在外部壳体的内径上的带槽的配合轮廓。 这将下部主体锁定到外部壳体,以确保密封件保持固定。 在对井组件进行压力测试之后,密封组件可以通过ROV从井解锁和回收。

    External tieback connector and method for tying back riser to subsea wellhead
    4.
    发明授权
    External tieback connector and method for tying back riser to subsea wellhead 有权
    外部接头连接器和将提升管连接到海底井口的方法

    公开(公告)号:US06293343B1

    公开(公告)日:2001-09-25

    申请号:US09803618

    申请日:2001-03-08

    CPC classification number: E21B33/038

    Abstract: A connector for tying back a riser from a subsea wellhead to a platform, wherein the wellhead has an internal wellhead housing with external grooves thereon. The connector having a plurality of dog members carried within a cavity which engage the external grooves. The dog members are actuated by axial movement of a piston linked to a cam ring. The connector has a plurality of transfer members located within the cavity to support the dog members and transfer upward loading to the wellhead housing during tension on one side due to bending. Further, the connector has a release ring which forces the dog members out of engagement with the external grooves when the connector is released.

    Abstract translation: 一种用于将提升管从海底井口连接到平台的连接器,其中所述井口具有在其上具有外部凹槽的内部井口壳体。 所述连接器具有承载在与所述外部凹槽接合的空腔内的多个狗构件。 通过与凸轮环连接的活塞的轴向运动来致动爪构件。 连接器具有位于腔体内的多个传送构件,以支撑狗构件并且由于弯曲而在一侧的张力期间将向上的载荷传递到井口壳体。 此外,连接器具有释放环,其在连接器被释放时迫使狗构件脱离与外部凹槽的接合。

    External tieback connector and method for tying back riser to subsea wellhead

    公开(公告)号:US06234252B1

    公开(公告)日:2001-05-22

    申请号:US09275345

    申请日:1999-03-24

    CPC classification number: E21B33/038

    Abstract: A connector for tying back a riser from a subsea wellhead to a platform, wherein the wellhead has an internal wellhead housing with external grooves thereon. The connector having a plurality of dog members carried within a cavity which engage the external grooves. The dog members are actuated by axial movement of a piston linked to a cam ring. The connector has a plurality of transfer members located within the cavity to support the dog members and transfer upward loading to the wellhead housing during tension on one side due to bending. Further, the connector has a release ring which forces the dog members out of engagement with the external grooves when the connector is released.

    Metal-to-Metal Seal for Smooth Bore
    6.
    发明申请
    Metal-to-Metal Seal for Smooth Bore 有权
    金属到金属密封的平滑孔

    公开(公告)号:US20090322030A1

    公开(公告)日:2009-12-31

    申请号:US12487516

    申请日:2009-06-18

    CPC classification number: E21B33/038 E21B17/04 F16L17/08

    Abstract: A seal assembly includes a tubular member having a longitudinal axis and a tubular member seal profile. A metal seal ring having a proximal base and a distal end has a seal ring seal profile between the proximal base and distal end that contacts the tubular member seal profile. A distal annular recess is in one of the seal profiles, the distal annular recess being spaced axially from the distal end of the seal ring, defining a seal surface between the distal end of the seal ring and the distal annular recess that engages a seal surface of the tubular member seal profile. The contacting portions of the seal surfaces form a metal-to-metal seal area. A proximal annular recess in one of the seal profiles is spaced axially from the distal annular recess, defining a support area axially spaced from the metal-to-metal seal area.

    Abstract translation: 密封组件包括具有纵向轴线和管状构件密封型材的管状构件。 具有近端基部和远端的金属密封环具有在近端基部和远端之间接触管状构件密封件轮廓的密封环密封件轮廓。 远端环形凹部位于一个密封型材中,远端环形凹槽与密封环的远端轴向间隔开,在密封环的远端和远端环形凹部之间形成密封表面,该密封表面与密封表面 的管状构件密封型材。 密封表面的接触部分形成金属对金属的密封区域。 一个密封型材中的近端环形凹部与远端环形凹部轴向间隔开,限定了与金属对金属密封区域轴向间隔开的支撑区域。

    Metal-to-Metal Seal for Smooth Bore
    7.
    发明申请
    Metal-to-Metal Seal for Smooth Bore 有权
    金属到金属密封的平滑孔

    公开(公告)号:US20090322029A1

    公开(公告)日:2009-12-31

    申请号:US12164962

    申请日:2008-06-30

    CPC classification number: E21B33/038 E21B33/043

    Abstract: A high pressure seal assembly configured for sealing contact with an opposing surface. The seal assembly comprises an annular seal body with a sealing surface on one side of the seal body. An end of the sealing surface includes a sealing face for sealing contact with the opposing surface. The sealing surface also includes at least one support point that contacts the opposing surface when the seal is placed in sealing contact. Strategically positioning the support point on the sealing surface selectively adjusts the sealing contact stress between the sealing face and the opposing surface.

    Abstract translation: 构造成与相对表面密封接触的高压密封组件。 密封组件包括环形密封体,其密封体的一侧具有密封表面。 密封面的端部包括用于与相对表面密封接触的密封面。 密封表面还包括当密封件处于密封接触时接触相对表面的至少一个支撑点。 将支撑点定位在密封表面上选择性地调节密封面和相对表面之间的密封接触应力。

    Threaded pipe connector
    8.
    发明授权
    Threaded pipe connector 有权
    螺纹管接头

    公开(公告)号:US07549682B2

    公开(公告)日:2009-06-23

    申请号:US11229905

    申请日:2005-09-19

    CPC classification number: F16L15/004

    Abstract: A riser connector uses a box and upset pin connector threadform design having S-shaped load flanks that provide a variable load angles depending on the radial position along the engaged teeth. This design promotes a load path that changes with position along the axial length of the engaged thread, as well as increasing or decreasing external loads on the connector. The connector also varies radial distention of the pin from the box in a manner that is different from one thread to the next. The threadform uses a combination of thread cuts that vary in shape, pitch, and/or thread cone angle to provide load and stab flanks, as well as a load path, that vary from one axial end of the engaged thread to the other.

    Abstract translation: 立管连接器使用具有S形负载侧面的盒和镦粗销连接器螺纹形设计,其提供取决于沿着啮合齿的径向位置的可变负载角度。 该设计促进了沿着所接合线的轴向长度的位置改变的负载路径,以及增加或减小连接器上的外部负载。 该连接器也以不同于一个螺纹到下一个螺纹的方式使销与箱的径向膨胀变化。 螺纹形式使用螺纹切口的组合,其在形状,间距和/或螺纹锥角上变化,以提供负载和刺齿侧面以及从所接合螺纹的一个轴向端到另一个的负载路径。

    Threaded connector
    9.
    发明授权

    公开(公告)号:US06478344B2

    公开(公告)日:2002-11-12

    申请号:US09906204

    申请日:2001-07-16

    CPC classification number: E21B17/042 E21B17/085 F16L15/00

    Abstract: An offshore riser includes a plurality of tubular elements, each having a pin member on one end and a box member on the other end for connection with adjacent tubular elements. The pin member has an external thread which engages an internal thread on the box member of the adjacent tubular element. A dual angle torque shoulder locks the box end securely into place against the pin, preventing radial distention of the box end and maintaining bearing pressure between the external sealing surfaces. Also, stress relief grooves are located on the box member and on the pin member, to reduce the incidence of stress fractures, thereby improving the fatigue life of the connection.

    TENSIONER LATCH WITH PIVOTING SEGMENTED BASE
    10.
    发明申请
    TENSIONER LATCH WITH PIVOTING SEGMENTED BASE 有权
    带起重装载基座的张紧器

    公开(公告)号:US20140169887A1

    公开(公告)日:2014-06-19

    申请号:US13714025

    申请日:2012-12-13

    CPC classification number: E21B19/004

    Abstract: A tensioner assembly for applying tension to a tubular member, such as a riser, can include an upper latch connected to the tubular member, a platform with a bore, and a plurality of lower latch segments, each having a base that is pivotally connected to the platform. After applying tension to the tubular member, the segments pivot inward to form an annular lower latch ring having an inner diameter less than an outer diameter of the upper latch. The assembly can include a locking mechanism that prevents axial movement of the upper latch, relative to the lower latch ring, after engagement. The upper latch can self-center on the lower latch as it is moved into the latching position.

    Abstract translation: 用于向管状构件(例如提升管)施加张力的张紧器组件可以包括连接到管状构件的上部闩锁,具有孔的平台和多个下部闩锁段,每个下部闩锁段具有枢转地连接到 的平台。 在向管状构件施加张力之后,节段向内枢转以形成具有小于上部闩锁的外径的内径的环形下部闩锁环。 组合件可以包括锁定机构,其在接合之后防止上闩锁相对于下闩锁环的轴向移动。 当上下闩锁移动到锁定位置时,上部闩锁可自动对准下部闩锁。

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