Subsea internal riser rotating control head seal assembly

摘要

An RCD is used to provide a system and method for sealing a marine riser having a rotatable tubular. A bypass internal channel or external line may be used to allow fluid to bypass the RCD seal. An RCD holding member seal could be a mechanically extrudable seal or a hydraulically expanded seal to seal the RCD with the riser.

主权项

1. A seal assembly, comprising:
an annular seal; a retainer receiving member having a formation; a moveable tool member releasablv configured to move relative to said retainer receiving member and configured to extrude said seal between said retainer receiving member and said moveable tool member; an extending member having a blocking shoulder and releasably connected with said moveable tool member; and a first shear device between said retainer receiving member and said moveable tool member configured to allow relative movement between said retainer receiving member and said moveable tool member.