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公开(公告)号：US07131922B2
公开(公告)日：2006-11-07
申请号：US11368076
申请日：2006-03-03
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.
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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。
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3.发明授权公开(公告)号：US07008340B2
公开(公告)日：2006-03-07
申请号：US10314710
申请日：2002-12-09
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。
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4.发明授权
公开(公告)号：US4209891A
公开(公告)日：1980-07-01
申请号：US925515
申请日：1978-07-17
IPC分类号： F16B1/00 , E21B33/038 , E21B41/00 , E21B43/013 , F16L1/26 , F16L37/00 , E21B43/01 , E21B33/035
CPC分类号： E21B41/0014 , E21B33/038 , F16L1/26 , F16L37/002 , Y10T29/49899 , Y10T29/53665
摘要： Apparatus for positioning a first part with respect to a second part is characterized by a cylindrical guide respectively attachable to each part, a helical surface being disposed on each guide, each helical surface including a right hand half and a left hand half. A piston-cylinder is disposed on the second part, the piston being extendable to engage the guide on the first part to axially align the guides. After alignment, the piston is retractable to bring the helical surfaces into contact to generate a torque and align the parts. In another embodiment, the guide for the second part is formed on the piston while the guide on the first part has an axial alignment member projecting therefrom to engage the guide on the second part to align the guides. Once aligned, the helical surfaces contact each other with the piston extended. The contact between the helical surfaces causes the rotational alignment of the second part with respect to the first part. The piston is then retracted, thereby causing respective mating elements of the first part and the second part to engage. The force of gravity is preferably used to bring the helical surfaces together and thereby cause a rotational torque to be applied to the second part relative to the first part.
摘要翻译： 用于将第一部分相对于第二部分定位的装置的特征在于分别可连接到每个部分的圆柱形引导件，设置在每个引导件上的螺旋表面，每个螺旋表面包括右手半部和左半部。 活塞缸设置在第二部分上，活塞可延伸以与第一部分上的引导件接合，以使引导件轴向对准。 在对准之后，活塞可缩回以使螺旋表面接触以产生扭矩并对齐部件。 在另一个实施例中，用于第二部分的引导件形成在活塞上，而第一部件上的引导件具有从其突出的轴向对准构件以与第二部分上的引导件接合以对准引导件。 一旦对准，螺旋表面就会随着活塞的延伸而相互接触。 螺旋表面之间的接触导致第二部分相对于第一部分的旋转对准。 然后将活塞缩回，从而使第一部分和第二部分的相应配合元件接合。 重力优选用于使螺旋表面在一起，从而使旋转扭矩相对于第一部分施加到第二部件。
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公开(公告)号：US06968900B2
公开(公告)日：2005-11-29
申请号：US10314747
申请日：2002-12-09
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。
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