Sevan Developer Sevan Developer Sevan Developer is a drilling unit based on Sevan SSP’s 650 circular hull design. The unit was constructed at Cosco Qidong Shipyard in China. Key data Year Delivered Ready at yard 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