Annular blowout preventer

Details Annular blowout preventer Annular blowout preventer

E - Fixed Constructions

21

B

166/50

E21B 33/06 (2006.01)

Patent

CA 1054931

ANNULAR BLOWOUT PREVENTER Abstract of the Disclosure There is disclosed an annular blowout pre- venter wherein a packer, received within a recess about a bore through the preventer housing, is adapted to be contracted by means of a piston having an annulus of resilient material movable inwardly within a chamber surrounding the recess and divided therefrom by a wall of the housing, and a disc- shaped member of resilient material extending through and sealably slidable within a slot in the wall to transmit the inward movement of the piston to the packer.

259625

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