Patent ID: 9097066
Filing Date: 2015-08-04
Classification: E21B

Abstract:
1. An installation and workover control system comprising: a drilling riser extending between a deepwater drilling unit and a subsea controls package; an umbilical extending between the deepwater drilling unit and the subsea controls package; one or more guide assemblies for securing the umbilical to the drilling riser, wherein the one or more guide assemblies are fixedly coupled to the drilling riser, wherein the umbilical is movable within the one or more guide assemblies in a vertical direction, wherein the umbilical is restrained laterally with the one or more guide assemblies, and wherein the one or more guide assemblies allow deployment and retrieval of the umbilical independently from the deployment of the drilling riser; an umbilical interface assembly, the umbilical interface assembly being configured for releasably retaining the umbilical with respect to the drilling riser; a frame assembly connected to the umbilical interface assembly; and a riser interface assembly connected to the frame assembly, the riser interface assembly being adapted for releasable connection of the guide assembly to the drilling riser.