发明申请
- 专利标题: Ball seat having ball support member
- 专利标题(中): 具有球支撑构件的球座
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申请号: US11891706申请日: 2007-08-13
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公开(公告)号: US20090044948A1公开(公告)日: 2009-02-19
- 发明人: Marcus A. Avant , Charles C. Johnson , James G. King , David B. Ruddock
- 申请人: Marcus A. Avant , Charles C. Johnson , James G. King , David B. Ruddock
- 主分类号: E21B34/08
- IPC分类号: E21B34/08 ; E21B34/06
摘要:
Apparatuses for restricting fluid flow through a well conduit comprise a housing having a longitudinal bore and a seat disposed within the bore. The seat has a first position when the apparatus is in the run-in position and a second position when the apparatus is in the set position. A plug element support member has a retracted position when the apparatus is in the run-in position and an extended position when the apparatus is in the set position. A plug element adapted to be disposed into the bore and landed on the seat to restrict fluid flow through the bore and the well conduit is used to move the plug element support member from the retracted position to the extended position, thereby providing support to the plug member landed on the seat.
公开/授权文献
- US07628210B2 Ball seat having ball support member 公开/授权日:2009-12-08
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