The CSO Deep Blue is the world’s largest purpose-built ultra deepwater pipelay and subsea construction vessel. It can lay flowlines and umbilicals, and support developments in water depths ranging from 75m to 2,500m.
The CSO Deep Blue has an overall length of 206.5m and a moulded breadth of 32m. It has a moulded depth of 17.8m and an operating draught of from 7.5-8.95m, with a 10m maximum of draught. It has a 55,234t displacement and is 33,791gt. The upper deck aft of moonpool can withstand loading of 14lb/in². Loading for the moonpool covers is 4lb/in² and the rest of the upper deck is 7lb/in². It has a free deck area (aft of the moonpool) of approximately 7,400ft².