Well operations system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 15, 2003
Grant Date -
N/A
app pub date -
Sep 7, 2000
filing date -
Jun 1, 1992
priority date (Note) -
Expired
status (Latency Note)
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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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