Subsea conductor anchor

摘要

A method of completing a subsea wellbore includes providing one or more conductor anchoring assemblies on an outer surface of a conductor; forming the subsea wellbore; positioning the conductor in the subsea wellbore; and energizing the one or more conductor anchoring assemblies into contact with the subsea wellbore, thereby stabilizing the conductor in the subsea wellbore. In yet another embodiment, the method further includes extending the subsea wellbore; positioning a casing inside the conductor, wherein the casing includes a casing anchoring assembly; and energizing the casing anchoring assembly into contact with the conductor.

主权项

1. A subsea tubular assembly for use in a subsea wellbore, comprising:
a conductor extending downward from a sea floor, the conductor being the outermost tubular member in the wellbore, the conductor having one or more openings formed through a sidewall of the conductor; one or more inflatable anchoring assemblies disposed on an outer surface of the conductor adjacent the one or more openings formed in the conductor; and an innerstring in fluid communication with the conductor and axially moveable relative to the conductor, the innerstring having:
an enlarged section configured to facilitate inflation of the one or more inflatable anchoring assemblies, the enlarged section defined by an enlarged inner diameter and an enlarged outer diameter of the inner string in the area of the sealing members; andone or more openings formed in the enlarged section; one or more sets of sealing members straddling the one or more openings formed in the enlarged section, the one or more sets of sealing members extending between the innerstring and the conductor.