Deep set packer with hydrostatic setting actuator
    5.
    发明申请
    Deep set packer with hydrostatic setting actuator 有权
    深层封隔器具有静液压设定执行器

    公开(公告)号:US20050205269A1

    公开(公告)日:2005-09-22

    申请号:US10803020

    申请日:2004-03-17

    IPC分类号: E21B23/06 E21B34/08

    CPC分类号: E21B23/06

    摘要: A packer and actuator therefor configured for use in relatively high hydrostatic pressure environments. In a described embodiment, a packer for use in a subterranean well includes an actuator for setting the packer. The actuator includes multiple pistons circumferentially spaced apart from each other.

    摘要翻译: 一种封隔器和致动器,其构造用于在相对较高的静水压力环境中使用。 在所描述的实施例中,用于地下井的封隔器包括用于设置封隔器的致动器。 致动器包括彼此周向间隔开的多个活塞。

    Two slip retrievable packer for extreme duty
    6.
    发明申请
    Two slip retrievable packer for extreme duty 有权
    双滑可回收包装机极端的责任

    公开(公告)号:US20050087347A1

    公开(公告)日:2005-04-28

    申请号:US10690737

    申请日:2003-10-22

    摘要: A packer includes one dual, or double acting, slip and a single acting slip positioned on a mandrel on opposite sides of a packing element and a setting cylinder. The single acting slip is designed to resist forces acting on the mandrel in one direction. Setting forces generated by the setting cylinder are coupled to the mandrel through a releasing sleeve. When the releasing sleeve is decoupled from the mandrel, the slip setting forces on both slips and the packing element are released and the packer can be retrieved from a well. In a preferred form, the releasing sleeve may be decoupled from the mandrel by multiple means.

    摘要翻译: 封隔器包括一个双重或双作用的滑动件和位于包装元件和安装缸的相对侧上的心轴上的单作用滑动件。 单作用滑动设计成抵抗在一个方向作用在心轴上的力。 由安装缸产生的设定力通过释放套筒与心轴相连。 当释放套筒与心轴分离时,释放两个滑块和包装元件上的滑移设置力,并且可以从井中取回封隔器。 在优选形式中,释放套筒可以通过多种方式与心轴分离。

    Packer releasing methods
    7.
    发明申请
    Packer releasing methods 失效
    封隔器释放方法

    公开(公告)号:US20050016737A1

    公开(公告)日:2005-01-27

    申请号:US10925452

    申请日:2004-08-25

    IPC分类号: E21B23/06 E21B19/00 E21B33/13

    CPC分类号: E21B23/06

    摘要: Methods of releasing a well tool set in a wellbore are provided. In various embodiments, a well tool, such as a packer, is released from sealing and gripping engagement within a wellbore using alternate methods. A dual-string packer is described in which the packer may be released by severing a mandrel of the packer, displacing a piston of the packer, or by displacing a retaining device in a flow passage of the packer.

    摘要翻译: 提供了在井筒中释放井具的设备的方法。 在各种实施例中,诸如封隔器的井工具使用替代方法从密封和夹紧接合中释放出来。 描述了一种双串式封隔器,其中封隔器可以通过切断封隔器的心轴,移动封隔器的活塞,或者通过移动封隔器的流动通道中的保持装置而被释放。