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1. 发明申请

US20100243235A1 Packer Providing Multiple Seals and Having Swellable Element Isolatable from the Wellbore 有权
标题翻译：封隔器提供多个密封并且具有可从井眼中分离的可溶胀元素
公开(公告)号：US20100243235A1
公开(公告)日：2010-09-30
申请号：US12415571
申请日：2009-03-31
申请人： Rebecca Caldwell , Patrick J. Zimmerman , Robert Coon , Henry Joe Jordan , David Ward
发明人： Rebecca Caldwell , Patrick J. Zimmerman , Robert Coon , Henry Joe Jordan , David Ward
IPC分类号： E21B33/12 , E21B33/124 , E21B23/00 , E21B33/122
CPC分类号： E21B33/1208 , E21B23/04 , E21B23/06 , E21B33/1216 , E21B33/126 , E21B33/128
摘要： A packer provides multiple seals when deployed downhole. Exposed to an activating agent, a swellable element on the packer's mandrel expands radially outward to form a seal with the borehole wall. One or more deformable elements, such as compressible packers or cup packers, are disposed on the mandrel adjacent the swellable element. These deformable element deform outward to the surrounding borehole wall to at least partially isolate the downhole annulus and the swellable element. Bias units releasably affixed on the tool adjacent the deformable elements can deform the elements. These bias unit can be released either by swelling of the swellable element or by fluid pressure. Once released, the bias units are axially biased toward the deformable elements to deform them. In this way, the packer can form multiple seals with the borehole wall, and the deformable elements can isolate the swellable element from the downhole annulus, which can keep the swellable element from degrading or being overly extruded.
摘要翻译：封隔器在井下部署时提供多个密封。封隔器心轴上的可膨胀元件暴露于活化剂时，径向向外膨胀，以形成与钻孔壁的密封。一个或多个可变形元件，例如可压缩封隔器或杯封隔器，设置在与可膨胀元件相邻的心轴上。这些可变形元件向外变形到周围的钻孔壁，以至少部分隔离井下环和可膨胀元件。可释放地固定在与可变形元件相邻的工具上的偏置单元可使元件变形。这些偏置单元可以通过膨胀元件的膨胀或流体压力释放。一旦释放，偏压单元被轴向偏向可变形元件以使它们变形。以这种方式，封隔器可以与钻孔壁形成多个密封，并且可变形元件可以将可溶胀元件与井下环空隔离开，这可以保持可溶胀元件的降解或过度挤压。

2. 发明授权

US08087459B2 Packer providing multiple seals and having swellable element isolatable from the wellbore 有权
标题翻译：封隔器提供多个密封件并具有可与井筒分离的可膨胀元件
公开(公告)号：US08087459B2
公开(公告)日：2012-01-03
申请号：US12415571
申请日：2009-03-31
申请人： Rebecca Caldwell , Patrick J. Zimmerman , Robert Coon , Henry Joe Jordan, Jr. , David Ward
发明人： Rebecca Caldwell , Patrick J. Zimmerman , Robert Coon , Henry Joe Jordan, Jr. , David Ward
IPC分类号： E21B33/12
CPC分类号： E21B33/1208 , E21B23/04 , E21B23/06 , E21B33/1216 , E21B33/126 , E21B33/128
摘要： A packer provides multiple seals when deployed downhole. Exposed to an activating agent, a swellable element on the packer's mandrel expands radially outward to form a seal with the borehole wall. Deformable elements, are disposed on the mandrel adjacent the swellable element. These deformable elements deform outward to the surrounding borehole wall to at least partially isolate the downhole annulus and the swellable element. Bias units releasable affixed on the tool adjacent the deformable elements can deform the elements. These bias units can be released either by swelling of the swellable element or by fluid pressure. Once released, the bias units are axially biased toward the deformable elements to deform them. In this way, the packer can form multiple seals with the borehole wall, and the deformable elements can isolate the swellable element from the downhole annulus, which can keep the swellable element from degrading or being overly extruded.
摘要翻译：封隔器在井下部署时提供多个密封。封隔器心轴上的可膨胀元件暴露于活化剂时，径向向外膨胀，以形成与钻孔壁的密封。可变形元件设置在与可膨胀元件相邻的心轴上。这些可变形元件向外变形到周围的钻孔壁，以至少部分隔离井下环和可膨胀元件。可拆卸地固定在与可变形元件相邻的工具上的偏置单元可使元件变形。这些偏压单元可以通过溶胀元件的溶胀或通过流体压力释放。一旦释放，偏压单元被轴向偏向可变形元件以使它们变形。以这种方式，封隔器可以与钻孔壁形成多个密封，并且可变形元件可以将可溶胀元件与井下环空隔离开，这可以保持可溶胀元件的降解或过度挤压。

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