Ball seat having fluid activated ball support

Details Ball seat having fluid activated ball support Ball seat having fluid activated ball support

2007-08-13

2009-12-29

Wright, Giovanna C (Department: 3672)

Wells

Valves, closures or changeable restrictors

Operated by dropped element

C166S386000, C137S516250, C137S516270

Reexamination Certificate

active

07637323

ABSTRACT:
Apparatuses for closing a well conduit comprise a housing having a longitudinal bore and a seat disposed within the bore. A chamber is disposed within the housing and includes a plug element support member, such as ram or piston, operatively associated within the chamber. The plug element support member has a retracted position and an extended position. A passageway is in fluid communication with the bore and the chamber. A plug element such as a ball or drop plug, is adapted to be disposed into the bore and landed on the seat to restrict fluid flow through the bore and the well conduit. Landing the plug element causes and allowing fluid pressure to build causes the plug element support member to move from the retracted position to the extended position to provide support to the plug element landed on the seat.

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