THE PROBLEM InterMoor, an Acteon company, was contracted for the provision of engineering and offshore services for the installation of 16 mooring lines to a semisubmersible floating production unit (FPU) offshore China. At the same time, they were also contracted for the hook-up of a turret-moored floating production and storage and offloading vessel (FPSO). The mooring system of that FPSO comprises nine suction pile anchors with chain-wire-chain legs. Challenges were both technical and logistical: ? Technical requirements including large mooring components (156mm chains, 256mm polyester ropes and associated connectors) and tight installation tolerances for two simultaneous installations in deep water. ? Logistical pressures including changing vessel availability and schedulin

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