Ram-type tensioner assembly having integral hydraulic fluid accumulator

    公开(公告)号:US07131922B2

    公开(公告)日:2006-11-07

    申请号:US11368076

    申请日:2006-03-03

    IPC分类号: F16H7/08 F16H7/18 F21B29/12

    CPC分类号: E21B19/006

    摘要: The invention is directed to a tensioner assembly for providing tensile force from a floating vessel at the surface of the ocean to the blowout preventer stack, or production tree, which is connected to the wellhead at the sea floor. The tensioner assembly compensates for vessel motion induced by wave action and heave and maintains a variable tension to the riser string alleviating the potential for compression and thus buckling or failure of the riser string. The tensioner assembly of the present invention includes a cylinder, a stop tube disposed with the cylinder, and a ram slidably engaged within the stop tube. The tensioner assembly also includes at least one gas, or air, transfer tube to create a pressurized air over hydraulic fluid arrangement to provide tensile force to the tensioner assembly.

    Portable drill string compensator
    2.
    发明授权
    Portable drill string compensator 有权
    便携式钻柱补偿器

    公开(公告)号:US06968900B2

    公开(公告)日:2005-11-29

    申请号:US10314747

    申请日:2002-12-09

    IPC分类号: E21B19/09 E21B43/01

    CPC分类号: E21B19/09 E21B19/006

    摘要: A closed system drill string compensator having a hydraulic fluid accumulator, at least one air pressure vessel, and a piston and a piston rod slidably engaged within a cylinder. The drill string compensator provides tensioning force for supporting a drill string and permits the drilling vessel to remain connected to the drill string during ocean level changes caused by wave action or ocean heave. In one embodiment, the accumulator surrounds the cylinder and at least one air pressure vessel is radially disposed around the accumulator and the cylinder. In another embodiment, the accumulator surrounds the cylinder and includes two ports, one port for permitting fluid communication between the cylinder and the accumulator and a second port for permitting fluid communication between the accumulator and the air pressure vessel, the first port including a shut-off valve disposed therein. Methods of compensating a drill string are also disclosed.

    摘要翻译: 一种封闭的系统钻柱补偿器,其具有液压流体储存器,至少一个空气压力容器以及可滑动地接合在气缸内的活塞和活塞杆。 钻柱补偿器提供用于支撑钻柱的张紧力,并且允许钻井船在由波浪作用或海洋起伏引起的海洋水平变化期间保持连接到钻柱。 在一个实施例中,蓄能器围绕气缸并且至少一个空气压力容器围绕蓄能器和气缸径向设置。 在另一个实施例中,蓄能器围绕气缸并且包括两个端口,一个用于允许气缸和蓄能器之间的流体连通的端口和用于允许蓄能器和空气压力容器之间的流体连通的第二端口, 关闭阀。 还公开了补偿钻柱的方法。

    Portable drill string compensator
    3.
    发明授权
    Portable drill string compensator 有权
    便携式钻柱补偿器

    公开(公告)号:US07131496B2

    公开(公告)日:2006-11-07

    申请号:US11182636

    申请日:2005-07-15

    IPC分类号: E21B43/01

    CPC分类号: E21B19/09 E21B19/006

    摘要: A closed system drill string compensator having a hydraulic fluid accumulator, at least one air pressure vessel, and a piston and a piston rod slidably engaged within a cylinder. The drill string compensator provides tensioning force for supporting a drill string and permits the drilling vessel to remain connected to the drill string during ocean level changes caused by wave action or ocean heave. In one embodiment, the accumulator surrounds the cylinder and at least one air pressure vessel is radially disposed around the accumulator and the cylinder. In another embodiment, the accumulator surrounds the cylinder and includes two ports, one port for permitting fluid communication between the cylinder and the accumulator and a second port for permitting fluid communication between the accumulator and the air pressure vessel, the first port including a shut-off valve disposed therein. Methods of compensating a drill string are also disclosed.

    摘要翻译: 一种封闭的系统钻柱补偿器,其具有液压流体储存器,至少一个空气压力容器以及可滑动地接合在气缸内的活塞和活塞杆。 钻柱补偿器提供用于支撑钻柱的张紧力,并且允许钻井船在由波浪作用或海洋起伏引起的海洋水平变化期间保持连接到钻柱。 在一个实施例中,蓄能器围绕气缸并且至少一个空气压力容器围绕蓄能器和气缸径向设置。 在另一个实施例中,蓄能器围绕气缸并且包括两个端口,一个用于允许气缸和蓄能器之间的流体连通的端口和用于允许蓄能器和空气压力容器之间的流体连通的第二端口, 关闭阀。 还公开了补偿钻柱的方法。

    Ram-type tensioner assembly having integral hydraulic fluid accumulator
    4.
    发明授权
    Ram-type tensioner assembly having integral hydraulic fluid accumulator 有权
    拉姆式张紧器组件,具有集成的液压流体蓄能器

    公开(公告)号:US07008340B2

    公开(公告)日:2006-03-07

    申请号:US10314710

    申请日:2002-12-09

    IPC分类号: F16H7/08 F16H7/18 F21B29/12

    CPC分类号: E21B19/006

    摘要: The invention is directed to a tensioner assembly for providing tensile force from a floating vessel at the surface of the ocean to the blowout preventer stack, or production tree, which is connected to the wellhead at the sea floor. The tensioner assembly compensates for vessel motion induced by wave action and heave and maintains a variable tension to the riser string alleviating the potential for compression and thus buckling or failure of the riser string. The tensioner assembly of the present invention includes a cylinder, a stop tube disposed with the cylinder, and a ram slidably engaged within the stop tube. The tensioner assembly also includes at least one gas, or air, transfer tube to create a pressurized air over hydraulic fluid arrangement to provide tensile force to the tensioner assembly.

    摘要翻译: 本发明涉及一种用于从海洋表面的浮动容器提供拉力的张紧器组件,其连接到在海底的井口处的防喷器堆或生产树。 张紧器组件补偿由波浪作用引起的容器运动并且起伏并且将提升管柱的可变张力保持在可调节的状态,从而减轻了压缩的可能性,从而降低了提升管柱的翘曲或失效。 本发明的张紧器组件包括一个圆柱体,一个设置有圆柱体的止动管,以及一个可滑动地接合在止动管内的柱塞。 张紧器组件还包括至少一个气体或空气传送管,以产生超过液压流体布置的加压空气以向张紧器组件提供张力。

    Co-linear tensioner and methods of installing and removing same
    6.
    发明授权
    Co-linear tensioner and methods of installing and removing same 有权
    共线张紧器及其安装和拆卸方法

    公开(公告)号:US07337849B2

    公开(公告)日:2008-03-04

    申请号:US11487270

    申请日:2006-07-14

    IPC分类号: E21B29/12

    CPC分类号: E21B19/006

    摘要: The invention is directed to a tensioner for providing linear and angular movement of a drilling or production facility relative to a conduit or riser secured to the tensioner and to the wellhead in offshore operations. The tensioner compensates for vessel motion induced by wave action and heave and maintains a variable tension to the riser string alleviating the potential for compression and thus buckling or failure of the riser string. The tensioner of the present invention preferably includes at least one top load plate that facilitates easy and quick installation and removal of the tensioner from the rig floor of the vessel or platform. The tensioner also facilitates the placement of at least one piece of equipment disposed within the area formed by the tensioning cylinders. The tensioner may also include one or more pieces of equipment, e.g., a rotary table, integrally formed with the tensioner to further increase the ease and speed of installation and removal of the tensioner from the rig floor. Methods for installing and removing tensioners from the rig floor are also disclosed.

    摘要翻译: 本发明涉及一种张紧器,用于相对于在海上操作中固定到张紧器和井口的导管或立管提供钻孔或生产设备的线性和角运动。 张紧器补偿由波浪作用引起的船只运动并起伏,并且将提升管柱的可变张力保持在可调节的状态,减轻了压缩的可能性,从而降低了提升管柱的翘曲或失效。 本发明的张紧器优选地包括至少一个顶部负载板,其有助于从容器或平台的钻台底部容易且快速地安装和移除张紧器。 张紧器还有助于放置设置在由张紧缸形成的区域内的至少一件设备。 张紧器还可以包括与张紧器一体形成的一个或多个设备,例如旋转台,以进一步增加张紧器从钻台的安装和移除的容易性和速度。 还公开了用于从钻台上安装和拆卸张紧器的方法。

    Supplied air helmet having face seal with differentiated permeability
    7.
    发明授权
    Supplied air helmet having face seal with differentiated permeability 有权
    供气头盔具有不同渗透性的面密封

    公开(公告)号:US07197774B2

    公开(公告)日:2007-04-03

    申请号:US10987512

    申请日:2004-11-12

    IPC分类号: A61F9/02 A62B18/08

    CPC分类号: A61F9/045 A62B18/04

    摘要: A supplied air helmet 10 comprises a visor 14 and a face seal 12 that is secured to the visor. The face seal 12 includes a sealing member 18 and a frame member 16. The sealing member 18 extends radially inward from the frame member 16 and has first and second regions of permeability 20 and 22. The second region 22 has greater permeability than the first region 20. The use of a face seal 12 that has differentiated permeability allows for a controlled flow of air through the interior of the supplied air helmet 10.

    摘要翻译: 供气头盔10包括一个遮阳板14和一个固定在遮阳板上的面密封件12。 面密封件12包括密封构件18和框架构件16.密封构件18从框架构件16径向向内延伸并具有第一和第二渗透性区域20和22.第二区域22具有比第一区域 具有不同渗透性的面密封件12的使用允许受控的空气流通过供应的空气头盔10的内部。

    Pneumatic reset relief valve
    8.
    发明授权
    Pneumatic reset relief valve 有权
    气动复位安全阀

    公开(公告)号:US06918407B2

    公开(公告)日:2005-07-19

    申请号:US10214876

    申请日:2002-08-08

    IPC分类号: F16K17/02 F16K21/00

    摘要: A safety device protects a mud pump from an over pressure condition, which can occur during normal operation. The mud pump discharge couples to a high pressure inlet at the bottom of a valve body and the discharge outlet from the valve discharges to the side of the body, ninety degrees to the inlet. In a first aspect, the safety device includes a load piston mounted to a shaft which passes through a pressure chamber cap and connects to a pneumatic cylinder assembly on the top side of the pressure chamber cap. The pneumatic cylinder assembly is operated by a control valve mounted to the base of the cylinder to set the pressure at which the safety device actuates. In a further aspect, the safety device includes a light transmissive indicator cylinder, with a flag therein mounted on a rod coupling the valve to a pneumatic actuator piston, between the actuator piston and the valve.

    摘要翻译: 安全装置保护泥浆泵免受过压状态的影响,这可能在正常运行过程中发生。 泥浆泵排放物连接到阀体底部的高压入口,阀门的排放出口排放到身体侧面,与入口相隔90度。 在第一方面,安全装置包括安装到轴上的负载活塞,所述轴通过压力室盖并连接到压力室盖的顶侧上的气动缸组件。 气缸组件由安装在气缸底部的控制阀来操作,以设定安全装置致动的压力。 在另一方面,安全装置包括透光指示器气缸,其中标记在其中安装在将阀连接到致动器活塞的致动器活塞和阀之间的杆上。