Patent ID: 9708879
Date: 2017-07-18
CPC Classifications: E21B

Claim:
1. An assembly, comprising: a tubular body arranged to be run into a wellbore and secured within a larger diameter generally cylindrical structure; a sleeve member positioned on the exterior of the tubular body and sealed thereto to create a chamber therebetween; the tubular body including a port having a valve to permit the flow of fluid from a through bore of the tubular body into the chamber to increase pressure within the chamber to cause the sleeve to move outwardly and morph against an inner surface of the larger diameter structure; wherein the valve traps pressure within the chamber to provide a morphed pressure value in the chamber; and the assembly further comprises a piston arranged within a housing, the housing being sealed except for a conduit for fluid coupling of the housing to the chamber, to maintain the morphed pressure value in the chamber by increasing and decreasing the trapped pressure.