Sevan Louisiana Sevan Louisiana Sevan Louisiana is a drilling unit based on Sevan SSP’s 650 circular hull design. Sevan Louisiana is owned and operated by Sevan Drilling / Seadrill. The unit was constructed at Cosco Qidong Shipyard in China. Key data Year Delivered 2013 Hull Diameter 75m Vessel type MODU DP class III Water Depth 3,000 m (10,000 ft) Drilling Depth 10,000 m (35,000 ft) Fact sheet Class: DnVGL, Owner / operator: Sevan Drilling (Owner) / Seadrill (Operations) POB capacity: 150 Displacement at 12,5m draft: 55 800 mT Hook load: 907 mT (1 000 ton) Racking capacity: 11 400 m (37 400 ft) Riser Tensioner: DAT 6 x 600 kips Variable Drilling Loads: 15,000 mT Mud pumps: 4 x 1 600 kW Thrusters: 8 x 3 800 kW Mud storage / Pits: 2 550 m3 / 950 m3 Station Keeping: DP3 Shakers: 5 off BOP: 18 ¾ ”, 15 000 psi