Cameron International Corporation

Cooper Cameron Corporation

Thomas G Cassity

Hans Paul Hopper

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.

Well operations systems

Well operations system

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.

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.

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.

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.

Growing community of inventors

Surrey, United Kingdom

Thomas G Cassity