Wellbore packer with movable tube

Details Wellbore packer with movable tube Wellbore packer with movable tube

E - Fixed Constructions

21

B

E21B 33/12 (2006.01)

Patent

CA 2565917

A packer (80) for use inside a casing (70) of a subterranean well includes a resilient element (84), a housing (104) and a rupture disc (124). The resilient element (84) is adapted to seal off an annulus (72) of the well when compressed, and the housing (104) is adapted to compress the resilient element (84) in response to a pressure exerted by fluid of the annulus (72) of a piston head (119) of the housing (104). The housing (104) includes a port (122) for establishing fluid communication with the annulus (72). The rupture disc (124) is adapted to prevent the fluid in the annulus (72) from entering the port (122) and contacting the piston head (119) until the pressure exerted by the fluid exceeds a predetermined threshold and ruptures the rupture disc (124).

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