Invention Grant
- Patent Title: Recovery valve
- Patent Title (中): 回收阀
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Application No.: US14557198Application Date: 2014-12-01
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Publication No.: US09228396B2Publication Date: 2016-01-05
- Inventor: Sergio Yamahata , Carlos Aparecido de Oliveira
- Applicant: ONESUBSEA IP UK LIMITED
- Applicant Address: GB London
- Assignee: OneSubsea IP UK Limited
- Current Assignee: OneSubsea IP UK Limited
- Current Assignee Address: GB London
- Agency: Chamberlain Hrdlicka
- Main IPC: E21B33/064
- IPC: E21B33/064 ; E21B34/04 ; E21B33/06 ; E21B19/00 ; E21B33/043 ; E21B21/00 ; E21B31/03

Abstract:
A tubing hanger landing system includes a tubing hanger running tool, a locking flowline to lock the tubing hanger running tool into a tubing hanger, and a lower body shear joint comprising a recovery valve. The recovery valve includes a valve body with a functional port, an operational port, a bi-directional port, and a relief port, and a valve piston positioned within the valve body and movable between an operational position and a relief position within the valve body. The functional port enables pressure to be communicated to the valve piston to move the valve piston from the operational position to the relief position, and, in the relief position, the valve piston provides fluid communication through a relief flowpath between the bi-directional port and the relief port to release pressure from the locking flowline.
Public/Granted literature
- US20150083431A1 Recovery Valve Public/Granted day:2015-03-26
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