Well operations system

Details Well operations system Well operations system

2006-01-31

2006-01-31

Dang, Hoang (Department: 3672)

Wells

Submerged well

Connection or disconnection of submerged members remotely...

C166S088400, C166S089100, C166S095100, C166S368000

Reexamination Certificate

active

06991039

ABSTRACT:
A wellhead has, instead of a conventional Christmas tree, a spool tree in which a tubing hanger 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 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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