Patent ID: 8297359

Claim:
A marine riser well intervention tie-back system comprising: a) a lower riser package (LRP) comprising a tree connector, a connector and seal stab adapter (CSSA), and a lower riser package body (LRP body), wherein the tree connector comprises an upper flange having a gasket profile for mating to a lower end of the CSSA, wherein the CSSA comprises at least one seal stab assembly on its lower end for fluidly connecting to a subsea tree, wherein the LRP body is comprised of one or more LRP sealing elements capable of sealing upon command, and an integral annulus with at least one annulus isolation valve, and wherein the LRP body is further comprised of an upper hub profile compatible with a quick disconnect connector and lower flange profile that fluidly mates with the CSSA; b) an emergency disconnect package (EDP) removably connected to the LRP, wherein: the EDP comprises a body (EDP body) having a quick disconnect connector on its lower end, one or more EDP sealing elements capable of sealing upon command, and at least one annulus isolation valve, the EDP body having an internal tie-back profile; c) an internal tie-back tool (ITBT) removably connected to the EDP body via the internal tie-back profile; and d) a collapse-resistant flexible hose fluidly connecting the LRP to the subsea tree.