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
- Patent Title: Spherical blowout preventer with energizeable packer seal and method of using same
- Patent Title (中): 具有可激活封隔器密封的球形防喷器及其使用方法
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Application No.: US14229268Application Date: 2014-03-28
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Publication No.: US09580987B2Publication Date: 2017-02-28
- Inventor: Joseph James Liotta , Eric Trevor Ensley , Christopher Dale Johnson
- Applicant: National Oilwell Varco, L.P.
- Applicant Address: US TX Houston
- Assignee: National Oilwell Varco, L.P.
- Current Assignee: National Oilwell Varco, L.P.
- Current Assignee Address: US TX Houston
- Agency: Conley Rose, P.C.
- Main IPC: E21B33/06
- IPC: E21B33/06 ; E21B33/04 ; E21B33/064

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.
Public/Granted literature
- US20150275609A1 SPHERICAL BLOWOUT PREVENTER WITH ENERGIZEABLE PACKER SEAL AND METHOD OF USING SAME Public/Granted day:2015-10-01
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