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    Apparatus and method for inserting or removing a string of tubulars from a subsea borehole
    1.
    发明授权
    Apparatus and method for inserting or removing a string of tubulars from a subsea borehole 失效
    用于从海底钻孔插入或移除一串管的装置和方法

    公开(公告)号：US06814140B2

    公开(公告)日：2004-11-09

    申请号：US10169781

    申请日：2002-07-03

    申请人： Dicky Robichaux

    发明人： Dicky Robichaux

    IPC分类号： G21B2912

    CPC分类号： E21B19/002

    摘要： A method and apparatus for inserting or removing a string of tubulars from a subsea borehole. The apparatus includes a first, lower, gripping mechanism locatable subsea in the vicinity of the subsea borehole. The first gripping mechanism is capable of gripping a portion of the string of tubulars. The apparatus further includes a second, upper, gripping mechanism locatable subsea in the vicinity of the subsea borehole, the second gripping mechanism being capable of-gripping a portion of the sting of tubulars. The first and second gripping mechanisms are moveable with respect to one another. The apparatus further includes a movement mechanism which, when actuated, moves one of the first and second gripping mechanisms with respect to the other of the first and second gripping mechanisms, such that the string of tubulars is inserted into or removed from the subsea borehole.

    摘要翻译： 一种用于从海底钻孔插入或移除一串管的方法和装置。 该装置包括位于海底钻井附近的第一，下部夹持机构可定位的海底。 第一夹持机构能够夹持管状管束的一部分。 该装置还包括位于海底钻孔附近的可定位的第二上部夹持机构，该第二夹持机构能够夹持一部分管状刺。 第一和第二夹持机构可相对于彼此移动。 该装置还包括一个移动机构，该机构当致动时相对于第一和第二夹持机构中的另一个移动第一和第二夹持机构中的一个，使得一串管状体被插入或从海底钻孔移除。

    Method and device for riser tensioning
    2.
    发明授权
    Method and device for riser tensioning 有权
    提升管张紧方法和装置

    公开(公告)号：US06708765B1

    公开(公告)日：2004-03-23

    申请号：US09787055

    申请日：2001-07-03

    申请人： Bjørn Eilertsen

    发明人： Bjørn Eilertsen

    IPC分类号： G21B2912

    CPC分类号： E21B19/006

    摘要： To maintain a riser under tension, the riser can be connected to a gripper (5, 12) which is connected to vertical toothed racks (4) that are in constant engagement with gear wheels (22) which are driven with constant torque, preferably by hydraulic motors (9) at constant pressure. An apparatus is also described for putting the riser under tension. The apparatus includes vertical guides (7) in a derrick, toothed racks (4) in the vertical guides (7), a gripper (5, 12) designed for interaction with a riser connected to the racks (4), and drive units (9) arranged in the derrick for drive-actuation of the racks (4) in the vertical guides (7).

    摘要翻译： 为了保持提升管处于张力下，提升管可以连接到夹持器（5,12），该夹持器连接到垂直齿条（4），该垂直齿条（4）与以恒定扭矩驱动的齿轮（22）保持恒定接合，优选地 液压马达（9）恒压。 还描述了一种用于使立管处于张力的装置。 该装置包括井架中的垂直导向件（7），垂直导向件（7）中的齿形齿条（4），设计用于与连接到机架（4）的提升机相互作用的夹持器（5,12）和驱动单元 9）布置在井架中，用于驱动驱动垂直导轨（7）中的齿条（4）。