Patent ID: 8322437
Filing Date: 2012-12-04
Classification: E21B

Abstract:
1. A system for controlling leakage of hydrocarbon fluids from a leak source at a seabed, said system comprising a closed loop containment barrier positioned around the leak source and defining a volume into which hydraulic concrete may be pumped, a containment vessel positioned over the leak source in the volume into which hydraulic concrete may be pumped, said containment vessel having an interior compartment into which hydrocarbon fluids may be captured and an exterior, and pumped hydraulic concrete filling at least a portion of said volume and encapsulating the exterior of at least a portion of the containment vessel; and a catenary gasket attached to the closed loop containment barrier, said catenary gasket comprising a flexible material that conforms to the shape of the seabed and defines a surface upon which the hydraulic concrete may be pumped and cured.