公开(公告)号：US06186227B1

公开(公告)日：2001-02-13

申请号：US09295915

申请日：1999-04-21

申请人： Vladimir Vaynshteyn ,  James D. Hendrickson ,  Jim B. Benton ,  Raghu Madhavan ,  Mitchell G. Willcox ,  Dinesh R. Patel

发明人： Vladimir Vaynshteyn ,  James D. Hendrickson ,  Jim B. Benton ,  Raghu Madhavan ,  Mitchell G. Willcox ,  Dinesh R. Patel

IPC分类号： E21B2304

CPC分类号： E21B43/116 ,  E21B33/126 ,  E21B33/1295 ,  E21B34/063

摘要： A packer for use inside a casing of a subterranean well includes a resilient element, a housing and a rupture disc. The resilient element is adapted to seal off an annulus of the well when compressed, and the housing is adapted to compress the resilient element in response to a pressure exerted by fluid of the annulus of a piston head of the housing. The housing includes a port for establishing fluid communication with the annulus. The rupture disc is adapted to prevent the fluid in the annulus from entering the port and contacting the piston head until the pressure exerted by the fluid exceeds a predefined threshold and ruptures the rupture disc.

公开(公告)号：US06564876B2

公开(公告)日：2003-05-20

申请号：US09745973

申请日：2001-02-09

申请人： Vladimir Vaynshteyn ,  James D. Hendrickson ,  Jim B. Benton ,  Raghu Madhaven ,  Mitchell G. Willcox ,  Dinesh R. Patel

发明人： Vladimir Vaynshteyn ,  James D. Hendrickson ,  Jim B. Benton ,  Raghu Madhaven ,  Mitchell G. Willcox ,  Dinesh R. Patel

IPC分类号： E21B2304

CPC分类号： E21B43/116 ,  E21B33/126 ,  E21B33/1295 ,  E21B34/063

摘要： A packer for use inside a casing of a subterranean well includes a resilient element, a housing and a rupture disc. The resilient element is adapted to seal off an annulus of the well when compressed, and the housing is adapted to compress the resilient element in response to a pressure exerted by fluid of the annulus of a piston head of the housing. The housing includes a port for establishing fluid communication with the annulus. The rupture disc is adapted to prevent the fluid in the annulus from entering the port and contacting the piston head until the pressure exerted by the fluid exceeds a predefined threshold and ruptures the rupture disc.

摘要翻译： 用于在地下井的壳体内使用的封隔器包括弹性元件，壳体和破裂盘。 弹性元件适于在压缩时密封井的环空，并且壳体适于响应于由壳体的活塞头的环的流体施加的压力而压缩弹性元件。 壳体包括用于与环形部件建立流体连通的端口。 破裂盘适于防止环空中的流体进入端口并接触活塞头，直到由流体施加的压力超过预定阈值并破裂破裂盘。

公开(公告)号：US06315050B2

公开(公告)日：2001-11-13

申请号：US09746531

申请日：2000-12-21

申请人： Vladimir Vaynshteyn ,  James D. Hendrickson ,  Jim B. Benton ,  Raghu Madhavan ,  Mitchell G. Willcox ,  Dinesh R. Patel

发明人： Vladimir Vaynshteyn ,  James D. Hendrickson ,  Jim B. Benton ,  Raghu Madhavan ,  Mitchell G. Willcox ,  Dinesh R. Patel

IPC分类号： E21B2304

CPC分类号： E21B43/116 ,  E21B33/126 ,  E21B33/1295 ,  E21B34/063

摘要： A packer for use inside a casing of a subterranean well includes a resilient element, a housing and a rupture disc. The resilient element is adapted to seal off an annulus of the well when compressed, and the housing is adapted to compress the resilient element in response to a pressure exerted by fluid of the annulus of a piston head of the housing. The housing includes a port for establishing fluid communication with the annulus. The rupture disc is adapted to prevent the fluid in the annulus from entering the port and contacting the piston head until the pressure exerted by the fluid exceeds a predefined threshold and ruptures the rupture disc.