Hydraulic set permanent packer with isolation of hydraulic actuator and built in redundancy
    1.
    发明授权
    Hydraulic set permanent packer with isolation of hydraulic actuator and built in redundancy 失效
    液压永久封隔器,液压执行器隔离,内置冗余

    公开(公告)号:US07383891B2

    公开(公告)日:2008-06-10

    申请号:US11209982

    申请日:2005-08-23

    IPC分类号: E21B33/129

    摘要: A packer includes one or more anchors for securing the packer in a wellbore and a pair of seal elements that form a fluid seal. The packer assembly is hydraulically set and, thus, it can be located at any desired position within the wellbore. The packer assembly is secured within the wellbore by a staged setting process through use of shear pins that have increasingly stepped shear values. Redundancy in packer sealing is provided by the use of two seal elements to establish fluid sealing. The design of the packer assembly also provides hydraulic isolation of the actuating portions of the packer assembly upon setting.

    摘要翻译: 封隔器包括用于将封隔器固定在井眼中的一个或多个锚固件和形成流体密封件的一对密封元件。 封隔器组件是液压设置的,因此它可以位于井眼内的任何期望位置。 封隔器组件通过使用具有逐渐变化的剪切值的剪切销,通过分阶段的设定过程固定在井筒内。 通过使用两个密封元件来建立流体密封来提供封隔器密封的冗余。 封隔器组件的设计还在设置时还提供封隔器组件的致动部分的液压隔离。

    Hydraulic set permanent packer with isolation of hydraulic actuator and built in redundancy
    2.
    发明申请
    Hydraulic set permanent packer with isolation of hydraulic actuator and built in redundancy 失效
    液压永久封隔器,液压执行器隔离,内置冗余

    公开(公告)号:US20060102361A1

    公开(公告)日:2006-05-18

    申请号:US11209982

    申请日:2005-08-23

    IPC分类号: E21B33/12

    摘要: A packer includes one or more anchors for securing the packer in a wellbore and a pair of seal elements that form a fluid seal. The packer assembly is hydraulically set and, thus, it can be located at any desired position within the wellbore. The packer assembly is secured within the wellbore by a staged setting process through use of shear pins that have increasingly stepped shear values. Redundancy in packer sealing is provided by the use of two seal elements to establish fluid sealing. The design of the packer assembly also provides hydraulic isolation of the actuating portions of the packer assembly upon setting.

    摘要翻译: 封隔器包括用于将封隔器固定在井筒中的一个或多个锚固件和形成流体密封件的一对密封元件。 封隔器组件是液压设置的,因此它可以位于井眼内的任何期望位置。 封隔器组件通过使用具有逐渐变化的剪切值的剪切销,通过分阶段的设定过程固定在井筒内。 通过使用两个密封元件来建立流体密封来提供封隔器密封的冗余。 封隔器组件的设计还在设置时还提供封隔器组件的致动部分的液压隔离。

    Composite landing collar for cementing operation
    3.
    发明授权
    Composite landing collar for cementing operation 有权
    复合式起落架用于固井作业

    公开(公告)号:US06457517B1

    公开(公告)日:2002-10-01

    申请号:US09771745

    申请日:2001-01-29

    IPC分类号: E21B1714

    CPC分类号: E21B33/16

    摘要: A composite landing collar is disclosed which is preferably adhesive bonded to the liner string using a high temperature epoxy. The spacing during bonding is maintained within dimensional limits using spacers. The body features a bi-directional material, with an appropriate ratio in the warp and fills directions, for about a quarter of the wall thickness. A unidirectional material with the fibers axially aligned aids in reduction of thermal stresses in the thick wall during curing, as well as reducing shear stress concentration along the adhesive bonding interface.

    摘要翻译: 公开了一种复合着陆衣领,其优选地使用高温环氧树脂粘合到衬垫绳上。 使用间隔件将接合期间的间隔保持在尺寸限度内。 身体具有双向材料,在经向和填充方向上具有适当的比例约四分之一的壁厚。 具有纤维轴向排列的单向材料有助于在固化期间减小厚壁中的热应力,以及降低沿粘合界面​​的剪切应力集中。