Wells – Submerged well – Wellhead
Reexamination Certificate
2007-04-10
2007-04-10
Will, Thomas B. (Department: 3671)
Wells
Submerged well
Wellhead
C166S344000, C166S347000, C166S360000, C166S369000
Reexamination Certificate
active
10972061
ABSTRACT:
A subsea production tree has an external annular profile formed on an upper portion of the tree. A vertical passage extending from a lower end of the tree to an upper end of the tree for communicating with a string of tubing extending into the well. A lateral passage in the tree extending from the vertical passage. A flow path in fluid communication with the lateral passage extends laterally from the tree, the flow path having an upward facing receptacle. An adapter lands on the upper portion of the tree and connects to the profile, the adapter having a passage that registers with the vertical passage of the tree while the adapter lands on the tree. A flow interface device mounts to and lands with the adapter, the flow interface device having an inlet conduit and an outlet conduit, one of the conduits being connected to the passage in the adapter, the other of the conduits stabbing into sealing engagement with the receptacle as the adapter lands on the tree.
REFERENCES:
patent: 2233077 (1941-02-01), Gillespie et al.
patent: 2790500 (1957-04-01), Jones
patent: 6457529 (2002-10-01), Calder et al.
patent: 6457530 (2002-10-01), Lam et al.
patent: 6823941 (2004-11-01), Donald
patent: 6966383 (2005-11-01), Milberger et al.
patent: 2005/0028984 (2005-02-01), Donald et al.
Brammer Norman
Milne Paul F.
White Paul W.
Bracewell & Giuliani LLP
Buchanan Christopher
Vetco Gray Inc.
Will Thomas B.
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