Invention Grant
US09580987B2 Spherical blowout preventer with energizeable packer seal and method of using same 有权
具有可激活封隔器密封的球形防喷器及其使用方法

Spherical blowout preventer with energizeable packer seal and method of using same
Abstract:
A blowout preventer includes a housing having a flow path therethrough in fluid communication with a wellbore penetrating a subsurface formation and a sealing assembly positionable in the housing about the flow path. The sealing assembly includes a piston slidably positionable in the housing and a packer element. The packer element includes a plurality of fingers and a packer seal. The fingers include a housing portion and a piston portion. The housing portion is slidably movable along the housing and the piston portion is slidingly movable along the piston. The fingers are engageable by the piston and movable to a sealed position about the flow path, and the packer seal is energized to form a seal about the blowout preventer to seal the wellbore in the subsurface formation.
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