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    DEVICE FOR SUSPENDING A TUBULAR FROM A FLOATING VESSEL
    2.
    发明申请
    DEVICE FOR SUSPENDING A TUBULAR FROM A FLOATING VESSEL 审中-公开

    公开(公告)号：US20180128062A1

    公开(公告)日：2018-05-10

    申请号：US15573133

    申请日：2016-04-15

    Applicant: MHWIRTH AS

    Inventor： OEYSTEIN SAEVELAND ,  OEYVIND TVETER

    IPC: E21B19/09 ,  E21B19/00

    CPC classification number: E21B19/09 ,  E21B19/006

    Abstract: A device for suspending a tubular from a floating vessel includes a first element which carries the tubular, a second element supported by the floating vessel, and a compression element which forms a connection between the first element and the second element. The compression element is pre-tensioned in an end stroke position so that, when the compression element is subjected to a force from the tubular which is below a pre-defined threshold force, the connection formed by the compression element between the first and second element is a rigid connection, and, when the compression element is subject to a force from the tubular which is higher than the pre-defined threshold force, the connection formed by the compression element between the first and second element is a compressible connection.

    MULTI-PATH HOISTING SYSTEMS
    8.
    发明申请
    MULTI-PATH HOISTING SYSTEMS 有权
    多通道系统

    公开(公告)号：US20160185577A1

    公开(公告)日：2016-06-30

    申请号：US14711954

    申请日：2015-05-14

    Applicant: Cameron International Corporation

    Inventor： Joe R. Berry

    IPC: B66D1/26 ,  B66D1/36 ,  E21B19/00 ,  E21B19/084 ,  B66D1/50 ,  B66D1/82

    CPC classification number: B66D1/26 ,  B66D1/52 ,  E21B19/008 ,  E21B19/09

    Abstract: Various hoisting systems using multiple hoisting lines in shared block-and-tackle arrangements are provided. In one embodiment, an apparatus includes a hoisting system with multiple hoisting lines wound on a rotatable drum of a drawworks. The hoisting lines are continuous wire ropes that are reeved over a shared crown block and around a shared traveling block in a block-and-tackle arrangement to provide a mechanical advantage. Additional systems, devices, and methods are also disclosed.

    Abstract translation: 提供了使用多个提升系统的各种提升系统，这些提升系统在共享的块和排列装置中。 在一个实施例中，一种装置包括一个起重系统，其具有缠绕在绞车的可旋转滚筒上的多个提升线。 提升线是连续的钢丝绳，其以共同的冠形块并围绕共享的行进块在块和滑动装置中围绕以提供机械优点。 还公开了附加的系统，装置和方法。

    Multi capacity riser tensioners
    10.
    发明授权
    Multi capacity riser tensioners 有权
    多容量立管张紧器

    公开(公告)号：US09359837B2

    公开(公告)日：2016-06-07

    申请号：US14650314

    申请日：2013-12-05

    Applicant: MHWIRTH AS

    Inventor： Lars Poehner

    IPC: E21B19/00 ,  E02B17/08 ,  E21B19/09

    CPC classification number: E21B19/006 ,  E02B17/0809 ,  E21B19/002 ,  E21B19/09

    Abstract: A hydraulic cylinder unit for connection to a wire line riser tensioner system includes a hydraulic cylinder comprising a cylinder piston separating a first cylinder chamber from a second cylinder chamber. A low pressure tank is arranged as a closed cylinder. A first conduit is inserted into the closed cylinder and provides a fluid communication between the low pressure tank and the first cylinder chamber. A second conduit provides a fluid communication between a high pressure fluid reservoir and the second cylinder chamber. A feedback conduit provides a fluid communication between the first cylinder chamber and the second cylinder chamber. A valve element comprising at least one valve is configured to be in a fluid communication with the at least one first conduit and the at least one feedback conduit. The valve element is configured to provide a reversible switching between a first alternative configuration and a second alternative configuration.

    Abstract translation: 用于连接到线路提升管张紧器系统的液压缸单元包括液压缸，其包括将第一气缸室与第二气缸室分离的气缸活塞。 低压罐被设置为封闭的气缸。 第一导管插入封闭的气缸中，并在低压罐和第一气缸室之间提供流体连通。 第二导管提供高压流体储存器和第二气缸室之间的流体连通。 反馈管道提供第一气缸室和第二气缸室之间的流体连通。 包括至少一个阀的阀元件构造成与所述至少一个第一管道和所述至少一个反馈管道流体连通。 阀元件构造成在第一替代配置和第二备选配置之间提供可逆切换。

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