Wells – Submerged well – Wellhead
Patent
1996-07-12
2000-03-21
Dang, Hoang C.
Wells
Submerged well
Wellhead
166 884, 166 951, 166348, 166382, E21B 3303
Patent
active
060391197
ABSTRACT:
A wellhead has, instead of a conventional Christmas tree, a spool tree (34) in which a tubing hanger (54) is landed at a predetermined angular orientation. As the tubing string can be pulled without disturbing the tree, many advantages follow, including access to the production casing hanger (21) for monitoring production casing annulus pressure, and the introduction of larger tools into the well hole without breaching the integrity of the well.
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Cassity Thomas G.
Hopper Hans Paul
Cooper Cameron Corporation
Dang Hoang C.
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