Invention Grant
- Patent Title: Subsea wellhead assembly, a subsea installation using said wellhead assembly, and a method for completing a wellhead assembly
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Application No.: US14240176Application Date: 2011-08-23
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Publication No.: US09657525B2Publication Date: 2017-05-23
- Inventor: Anthony Ray , Patrick Marcellin , Gilles Leger
- Applicant: Anthony Ray , Patrick Marcellin , Gilles Leger
- Applicant Address: FR Courbevoie
- Assignee: TOTAL SA
- Current Assignee: TOTAL SA
- Current Assignee Address: FR Courbevoie
- Agency: Patterson Thuente Pedersen, P.A.
- International Application: PCT/IB2011/002292 WO 20110823
- International Announcement: WO2013/027081 WO 20130228
- Main IPC: E21B7/12
- IPC: E21B7/12 ; E21B33/035 ; E21B33/043 ; E21B34/04
Abstract:
A subsea wellhead assembly comprising at least a casing housing and a casing extending down inside the well, and a tubing hanger. The tubing hanger comprises first and second valves, each valve being a fail safe valve.
Public/Granted literature
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