Blowout preventer and method of using same
AssigneeNational Oilwell Varco, L.P.
InventorsJames William Weir, Dean Allen Bennett
Life of this patent
Estimating the term…
Abstract
The techniques herein relate to a blowout preventer a tubular of a wellbore penetrating a subterranean formation. The blowout preventer includes a housing having a bore therethrough, a segment carrier positionable in the housing, and a piston. The segment carrier includes a carrier ring for receiving the tubular and a plurality of segments pivotally movable radially thereabout. The piston is operatively connectable to the plurality of segments and actuatable for moving the plurality of segments between a disengaged and an engaged position about the tubular.
Claims21
A blowout preventer for a tubular of a wellbore penetrating a subterranean formation, the blowout preventer comprising:
- a housing having a bore therethrough;
- a segment carrier positionable in the housing, the segment carrier comprising a carrier ring for receiving the tubular and a plurality of segments pivotally movable radially thereabout;
- and
- a piston operatively connectable to the plurality of segments, the piston actuatable for moving the plurality of segments between a disengaged and an engaged position about the tubular.
A blowout prevention system for a tubular of a wellbore penetrating a subterranean formation, the blowout preventer system comprising:
- an engagement assembly, comprising:
- a housing having a bore therethrough;
- a segment carrier positionable in the housing, the segment carrier comprising a carrier ring for receiving the tubular and a plurality of segments pivotally movable radially thereabout;
- and
- a piston operatively connectable to the plurality of segments, the piston actuatable for moving the plurality of segments between a disengaged and an engaged position about the tubular;
- and
- an actuator for actuating the piston.
A method for sealing a tubular of a wellbore penetrating a subterranean formation, the method comprising:
- providing a blowout preventer, the blowout preventer comprising:
- a housing having a bore therethrough;
- a segment carrier positionable in the housing, the segment carrier comprising a carrier ring and a plurality of segments radially positionable thereabout;
- and
- a piston operatively connectable to the plurality of segments;
- receiving the tubular in the housing and through the carrier ring and the piston;
- actuating the piston to selectively move the plurality of segments between a dis-engaged position and an engaged position about the tubular.
Dependencies are inferred from the claim text.