发明授权
- 专利标题： Method and apparatus for production using a pressure actuated circulating valve
- 专利标题（中）： 使用压力驱动循环阀的生产方法和设备
-
申请号： US09378384申请日： 1999-08-20
-
公开(公告)号： US06397949B1公开(公告)日： 2002-06-04
- 发明人: David Joseph Walker , Dewayne Turner , William D. Henderson , Mike Ritter
- 申请人： David Joseph Walker , Dewayne Turner , William D. Henderson , Mike Ritter
- 主分类号： E21B3410
- IPC分类号： E21B3410
摘要：
The present invention relates to a pressure actuated valve for use in well completion assemblies. The valve is operable by pressure between three configurations. In a first configuration, the valve is in a locked-closed configuration. In a second configuration, the valve remains closed but is unlocked. In a third configuration, the valve is open. Also disclosed is a method of installing and operating a three pressure actuated valve in a well completion operation.
信息查询
