System and method for fail-safe disconnect from a subsea well

摘要

A system for controlled separation of a conduit 20 into an upper portion 20a and a lower portion 20b, wherein at least a length of the conduit is residing in a tubular member of a well, the system comprising: a separation joint 28 at which the conduit is separated into the upper portion and the lower portion; a valve 34 in the lower portion of the conduit operable to prevent fluid flow through the lower portion of the conduit; and a well engaging member 32 in the lower portion of the conduit actuable to engage an interior surface of the tubular member and axially support the lower portion of the conduit at a location independent of a profile of the interior surface.