公开(公告)号：CA2690289C

公开(公告)日：2017-01-03

申请号：CA2690289

申请日：2010-01-14

Applicant: WEATHERFORD/LAMB INC

Inventor： BAILEY THOMAS F ,  WAGONER DANNY W ,  ANDERSON WAYBOURN J JR

IPC: E21B33/035

Abstract: 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 seal assembly seal could be a mechanically extrudable seal or a hydraulically expanded seal to seal the RCD with the riser.

公开(公告)号：CA2803957C

公开(公告)日：2016-08-30

申请号：CA2803957

申请日：2011-06-28

Applicant: WEATHERFORD/LAMB INC

Inventor： BAILEY THOMAS F ,  TILTON FREDERICK THOMAS ,  HANNEGAN DON M ,  ANDERSON WAYBOURN J JR ,  HARRALL SIMON JOHN

IPC: E21B33/08

Abstract: A sealing element (10, 18) for sealing an oilfild component (DS) the sealing element having a bore fore receiving the oilfild component, the sealing element comprising : - a seal supporting section (16, 24) - a sealing section (21, 13) having an inwardly facing bore surface; and - a profile (12, 20 ) formed on said sealing section inwardly facing bore surface to seal the oilfield component while communicating a fluid between said sealing section and the oilfield component.