Patent ID: 8590624
Filing Date: 2013-11-26
Classification: E21B

Abstract:
1. A method of setting and testing a bridging hanger on a previously set casing hanger, and a bridging hanger packoff, the method comprising: (a) mounting the bridging hanger and bridging hanger packoff to a running tool, and providing the bridging hanger with a sealing surface for sealing the bridging hanger to the previously set casing hanger; (b) running the running tool and the bridging hanger on a string of conduit into a subsea wellhead; (c) applying fluid pressure to the annular area surrounding the string of conduit to set the bridging hanger and to cause the sealing surface to seal against the previously set casing hanger; (d) testing the sealing surface between the bridging hanger and the previously set casing hanger; and (e) after steps (c) and (d), applying fluid pressure to the annular area surrounding the string of conduit to set the packoff.