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公开(公告)号：US07055596B2
公开(公告)日：2006-06-06
申请号：US10925452
申请日：2004-08-25
IPC分类号： E21B33/00
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。
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2.发明授权Downhole device to measure and record setting motion of packers and method of sealing a wellbore 有权用于测量和记录包装机的设置运动的井下装置以及密封井筒的方法公开(公告)号：US07377319B2
公开(公告)日：2008-05-27
申请号：US11062976
申请日：2005-02-22
申请人： Daniel L. Patterson
发明人： Daniel L. Patterson
IPC分类号： E21B33/12
摘要： A downhole tool assembly including a sealing device and a sensing device for sensing parameters associated with the operation of the sealing device.
摘要翻译： 一种井下工具组件，包括密封装置和用于感测与密封装置的操作相关的参数的感测装置。
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公开(公告)号：US07198110B2
公开(公告)日：2007-04-03
申请号：US10690737
申请日：2003-10-22
IPC分类号： E21B23/01
CPC分类号： E21B33/122 , E21B33/1292 , E21B33/1295
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。
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公开(公告)号：US06860326B2
公开(公告)日：2005-03-01
申请号：US10224988
申请日：2002-08-21
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.
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公开(公告)号：US07231987B2
公开(公告)日：2007-06-19
申请号：US10803020
申请日：2004-03-17
IPC分类号： E21B23/06 , E21B33/128
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。
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6.发明授权
公开(公告)号：US5188182A
公开(公告)日：1993-02-23
申请号：US698449
申请日：1991-05-10
CPC分类号： E21B47/1025 , E21B34/063 , E21B34/14 , E21B43/045 , E21B2034/005
摘要： An isolation valve for a downhole well completion system having a one piece frangible, ceramic sealing element and an extrusion resistant resiliently faced valve seat and a method for the use thereof is presented. Said sealing element is biased to the closed position and rotatable within a sealing element chamber from an open position during run in to a closed position as a result of the withdrawal of a wash pipe and a protector tube from the valve bore. Said frangible sealing element cooperates with said extrusion resistant valve seat to provide a reliable pressure resistant seal. After recovery of completion fluids from the well bore and pressure testing of the production string, the frangible sealing element is shattered by impacting with a tooth-faced blind box hammer.
摘要翻译： 本发明提供一种具有一体式易碎陶瓷密封元件和耐挤压弹性面阀座的井下井完井系统隔离阀及其使用方法。 所述密封元件被偏压到关闭位置，并且由于从阀孔抽出洗涤管和保护管而在运行期间从打开位置在密封元件室内旋转到关闭位置。 所述易碎密封元件与所述耐挤压阀座配合以提供可靠的耐压密封。 在从井筒回收完井液和生产钢丝绳的压力测试之后，易碎的密封元件通过与齿面的盲盒锤撞撞而破碎。
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