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公开(公告)号：US20080223588A1
公开(公告)日：2008-09-18
申请号：US12047163
申请日：2008-03-12
IPC分类号： E21B33/128
CPC分类号： E21B33/128 , E21B33/1208
摘要： A well tool having an enhanced performance packing element assembly. A well tool includes a packing element assembly for sealingly engaging a surface, the assembly including a packing element having at least one circumferential variation. Another well tool includes a packing element assembly including a packing element and a backup ring, the packing element being configured to bias the backup ring into contact with a surface opposite a circumferential portion of the backup ring, while another circumferential portion does not contact the surface. A method of setting a well tool includes providing a packing element assembly with multiple packing elements, and setting the well tool by squeezing fluid from between the packing elements via a gap, and then closing off the gap.
摘要翻译： 具有增强的性能包装元件组件的井具。 井具包括用于密封地接合表面的包装元件组件，该组件包括具有至少一个周向变化的填充元件。 另一个井具包括一个包装件组件，它包括一个填料元件和一个支承环，该填料元件被构造成将该支承环偏置成与该支承环的周向部分相对的表面接触，另一个圆周部分不接触该表面 。 设置井工具的方法包括提供具有多个填料元件的填料元件组件，以及通过经由间隙从填料元件之间挤压流体，然后封闭间隙来设定井具。
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公开(公告)号：US07926581B2
公开(公告)日：2011-04-19
申请号：US12047163
申请日：2008-03-12
IPC分类号： E21B33/128
CPC分类号： E21B33/128 , E21B33/1208
摘要： A well tool having an enhanced performance packing element assembly. A well tool includes a packing element assembly for sealingly engaging a surface, the assembly including a packing element having at least one circumferential variation. Another well tool includes a packing element assembly including a packing element and a backup ring, the packing element being configured to bias the backup ring into contact with a surface opposite a circumferential portion of the backup ring, while another circumferential portion does not contact the surface. A method of setting a well tool includes providing a packing element assembly with multiple packing elements, and setting the well tool by squeezing fluid from between the packing elements via a gap, and then closing off the gap.
摘要翻译： 具有增强的性能包装元件组件的井具。 井具包括用于密封地接合表面的包装元件组件，该组件包括具有至少一个周向变化的填充元件。 另一个井具包括一个包装件组件，它包括一个填料元件和一个支承环，该填料元件被构造成将该支承环偏置成与该支承环的周向部分相对的表面接触，另一个圆周部分不接触该表面 。 设置井工具的方法包括提供具有多个填料元件的填料元件组件，以及通过经由间隙从填料元件之间挤压流体，然后封闭间隙来设定井具。
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公开(公告)号：US06408946B1
公开(公告)日：2002-06-25
申请号：US09561484
申请日：2000-04-28
IPC分类号： E21B2304
摘要： An apparatus for disconnecting a bottom hole assembly from a work string, having an upper tool body, a piston biased away from a slidable collet, locking dogs held in engagement with a lower tool body by the slidable collet, and one or more collet fingers holding the collet in place, relative to the upper body. The piston can be hydraulically displaced against the biasing spring, thereby releasing the collet finger, followed by further displacement of the piston to contact the collet, then displacement of the piston and the collet to release the locking dogs from engagement with the lower tool body. A shear pin in the collet can provide a positive pressure indication of release of the disconnect device.
摘要翻译： 一种用于将底部孔组件与工作线断开的装置，具有上部工具主体，偏离可滑动夹头的活塞，通过可滑动夹头保持与下部工具主体接合的锁定爪，以及一个或多个夹头 夹头就位，相对于上身。 活塞可以克服偏压弹簧被液压地移位，由此释放夹头，随后进一步移动活塞以接触夹头，然后移动活塞和夹头，以使锁定爪不与下部工具主体接合。 夹头中的剪切销可以提供断开装置的释放的正压指示。
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