Wells – Processes – Placing or shifting well part
Reexamination Certificate
2007-08-21
2007-08-21
Gay, Jennifer H (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S348000, C166S088200, C166S092100, C166S085400, C166S085500
Reexamination Certificate
active
11284308
ABSTRACT:
A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.
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Bailey Thomas F.
Bourgoyne Darryl A.
Chambers James W.
Hannegan Don M.
Wilson Timothy L.
Gay Jennifer H
Strasburger & Price LLP
Weatherford / Lamb, Inc.
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