Lucius Spar: Design to Delivery

Abstract This paper provides an overview of the design and installation of Anadarko’s Lucius Truss Spar. This spar is the seventh spar designed and delivered in the operator’s fleet of offshore production facilities. The design and engineering of the spar and mooring systems were performed using the most current environmental and regulatory requirements for floating facilities. The spar hull was fabricated in Finland and traveled to the gulf coast by dry transport. There it was outfitted and then wet towed to Keathley Canyon Block 875 in preparation for upending and mooring installation in 7,100 ft of water. The offshore campaign for the installation of the hull and mooring system was successfully completed in October of 2013 in preparation for the Topsides set in February of 2014. This paper will summarize the design and fabrication of the Lucius spar as well as explore the project challenges for the delivery and installation of the facility, with special attention given to the issue of safety. The Lucius Spar is the operator’s largest spar to date and uses the latest technology to moor the hull in very challenging terrain. The installation contractor for the hull and mooring system, provided extensive engineering and project management to plan and execute the installation safely.