Offshore Deep-water Drilling Conducters Installed by InterMoor
InterMoor, an Acteon company, completes installation of the drilling and production conductors for the Papa Terra offshoref Brazil.
Petrobras serves as the operator of the Papa Terra concession with a 62.5 percent interest; Chevron (CVX) holds the remaining 37.5 percent interest.
InterMoor was responsible for the design, procurement, fabrication and installation of 15 conductors for the project. Fabricated at InterMoor’s 24-acre, Morgan City, La., facility, the conductors are 36 inches (91 centimeters) in diameter and 187 feet (57 meters) long.
InterMoor chartered the Skandi Skolten, DOF Subsea’s Construction Anchor Handling Vessel, and the installation barge with a customized conductor launch system. For conductor driving, InterMoor used MENCK’s MHU-270T DWS which included a deepwater hydraulic hammer capable of providing a driving energy of 270 kilojoules at a water depth of 3,281 feet (1000 meters) combined with MENCK’s girdle-type electro-hydraulic power pack and umbilical support system.
Generating hydraulic power at depth, rather than at the surface, means no hydraulic hose, therefore minimalizing environmental impact and energy loss.
The conductors were installed in water depths of 3,937 feet (1,200 meters) in the southern Campos Basin off the coast of Brazil.
InterMoor’s conductor services optimize conductor design to meet project-specific load and fatigue requirements, and the unique patented installation method allows installation without the need of a construction vessel. A standard Anchor Handling Vessel is sufficient, leading to a more economical installation off the rig’s critical path.