Isolation Barrier

摘要

An apparatus and method for securing a tubular within another tubular or borehole, creating a seal across an annulus in a well bore, and centralising or anchoring tubing within a wellbore. A sleeve is arranged on a tubular body to create a chamber therebetween. A port provides fluid access through the body to the chamber. A support frame of bow springs on mounts is located within the chamber. When fluid is introduced into the chamber the sleeve is morphed to secure it to a well bore wall, an end of the sleeve will move along the body and compress the frame and bow springs. The compressed springs support the sleeve to maintain a seal between the sleeve and well bore wall to form an isolation barrier.

主权项

1. An assembly, comprising:
a tubular body arranged to be run in and secured within a larger diameter generally cylindrical structure; a sleeve member positioned on the exterior of the tubular body, to create a chamber therebetween; the sleeve member having a first end which is affixed and sealed to the tubular body and a second end which includes a sliding seal to permit longitudinal movement of the second end over the tubular body; the tubular body including a port to permit the flow of fluid into the chamber to cause the sleeve member to move outwardly and morph against an inner surface of the larger diameter structure; and characterised in that: a support frame is located within the chamber; the frame comprising a plurality of springs supported between a plurality of mounts; and the frame being compressed by movement of the second end towards the first end as the sleeve member is moved outwardly by fluid pressure and the compressed springs supporting the morphed sleeve member against the inner surface of the larger diameter structure.