HOUSTON – SOFEC has delivered five catenary anchor leg mooring (CALM) buoys to PEMEX Refinación. SOFEC was contracted via Integrated Trade Systems Inc. under an EPC contract for the supply of the CALM buoys to be installed in Mexican waters. These buoys are replacement buoys for existing terminals for the Office of Maritime and Port Operations, Rosarito, Baja California; the Marine Terminal at Tuxpan; and the Marine Terminal at Salina Cruz.
SOFEC was responsible for the engineering, procurement and construction of these replacement CALM buoys and assistance in offshore commissioning activities. The CALM buoys were constructed at Gulf Copper Fabricators in Port Arthur, Texas.
The buoys are designed to weathervane with a tanker moored. The design allows for continued liquid hydrocarbons transfer operations between the fixed pipeline and floating tanker systems regardless of vessel heading. This capability to weathervane allows hydrocarbon transfer to continue in relatively high operational environments. The buoys will be installed in water depths ranging from 18 to 23 m (59 to 75 ft) mean sea level and are designed to moor up to 60,000-DWT vessels. Cargo transfer operations will include gasoline in all varieties, diesel, MTBE, and TAME at flow rates up to 15,000 bbl/hr.