Invention Grant
- Patent Title: Internal lockdown snubbing plug
- Patent Title (中): 内部锁定缓冲塞
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Application No.: US12920823Application Date: 2009-02-25
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Publication No.: US08701756B2Publication Date: 2014-04-22
- Inventor: Dennis P. Nguyen , Stephen C. Muse
- Applicant: Dennis P. Nguyen , Stephen C. Muse
- Applicant Address: US TX Houston
- Assignee: Cameron International Corporation
- Current Assignee: Cameron International Corporation
- Current Assignee Address: US TX Houston
- Agency: Fletcher Yoder, P.C.
- International Application: PCT/US2009/035166 WO 20090225
- International Announcement: WO2009/120446 WO 20091001
- Main IPC: E21B33/12
- IPC: E21B33/12

Abstract:
A snubbing plug is configured to be secured within a component of a mineral extraction system by an internal locking mechanism. In addition, the snubbing plug enables pressure equalization of regions above and below the plug before removal of the plug. Upon insertion of the snubbing plug into a well component, pressure may be equalized via fluid pathways through the snubbing plug. The pathways are sealed closed during snubbing operations and opened again when snubbing operations are complete. Manipulation of the fluid pathways may be accomplished via rotation of a load ring within the snubbing plug.
Public/Granted literature
- US20110011598A1 INTERNAL LOCKDOWN SNUBBING PLUG Public/Granted day:2011-01-20
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