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 Offshore & Support Vessel |  3,000M Deepwater Semi-Submersible Drill Rig
 
 
Building Shipyard
 Shanghai Waigaoqiao Shipbuilding
 
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Member Only Semi-submersible driller Brochure
 

3,000M Deepwater Semi-Submersible Drill Rig -- Designed by Marine Design & Research Insititute of China

The Deepwater Semi-submersible Drilling Unit "Hai Yang Shi You 981" is built for China National Offshore Oil Corporation (CNOOC). It has twin shaped lower hulls supporting four (4) corner columns, transverse braces, and a watertight selevated deck.

The Unit is capable of drilling as dynamically positioned (DPS-3) drilling unit in water depths up to 3,050m (10,000 ft), drilling depths up to 10,000m (32,800 ft) for operations in moderate environments, and conventionally moored in water depths up to 1,500m (4,921 ft).

MAIN PARTICULARS
- Width of deck box:      74.42 m      (244 ft)
- Length of deck box:     77.47 m      (254 ft)
- Width of pontoons:      20.12 m       (66 ft)
- Length of pontoons:    114.07 m    (374.2 ft)
- Height of pontoons:      8.54 m       (28 ft)
- Four columns:     17.4 x 17.4 m (57.1 x 57.1 ft)
- Height to main deck:     38.6 m    (126.6 ft)
- Height of deck box:       8.6 m       (28 ft)
- Transit draught:          8.2 m       (27 ft)
- Transit displacement:  37,456 mt  (41,298 st)
- Transit variable load:  5,000 mt   (5,511 st)
- Operation draught:         19 m     (62.3 ft)
- Operation displacement: 51,624 mt (56,906 st)
- Operation variavle load: 9,000 mt  (9,920 st)
- Survival draught:          16 m    (52.49 ft)
- Air gap survival:          14 m    (45.93 ft)

MAIN MARINE SYSTEM / EQUIPMENT
- Power generation:    8 x 5,530 kW (8 x 7,416 hp)
- Thrusters:           8 x 4,300 kW (8 x 6,169 hp)
- DP Class:            DP3
- Mooring system:      12 point mooring
- Main deck cranes:    2 x 100 mt (2 x 110 st)

MAIN DRILLING SYSTEM / EQUIPMENT
- Derrick for up to 135 feet stands: 907 mt (1,000 st)
- Top drive:     907 mt (1,000 st)
- Drawworks:     907 mt (1,000 st)
- Riser tensioners, N-line type: 1,630 mt (1,800 st)
- Mud pumps:     4 x 1,700 kW (4 x 2,200 hp)
- BOP Stace:     15,000 psi 6 rams

TANK / STORAGE CAPACITIES
- Fuel oil:       4,603
(28,950 bbls)
- Drill water:    3,123
(19,641 bbls)
- Potable water:  1,391
(8,748 bbls)
- Reserve Mud:    1,700
(10,692 bbls)
- Mud pits:       1,039
(6,535 bbls)
- Brine:            723
(4,547 bbls)
- Base oil:         767
(4,824 bbls)
- Bulk mud:         553
(3,478 bbls)
- Bulk cement:      350
(2,201 bbls)
- Sack storage: 6,000 sacks



Order Book (Please note: the order book is for reference only, the updated report please contact the yard!)
Vessel TypeShipyardOwner CompanyDeliveryContract Date
Drillship, 12,000 Water DepthSamsung Heavy IndustriesSamsung Heavy Industries2022-072014-4-10
Drillship, 12,000 Water DepthSembcorp TKYTransocean Ltd2022-072014-2-26
Drillship, 12,000 Water DepthSembcorp TKYTransocean Ltd2022-062014-2-26
Drillship, 12,000 Water DepthKeppel FELSKeppel FELS2022-012013-12-11
Drillship, 12,000 Water DepthSamsung Heavy IndustriesSamsung Heavy Industries2022-012013-9-3
Drillship, 11,815 Water DepthDaewoo Shipbuilding & Marine Engineering Co., LtdDaewoo Shipbuilding & Marine Engineering Co., Ltd2023-012013-7-15
Drillship, 11,815 Water DepthDaewoo Shipbuilding & Marine Engineering Co., LtdDaewoo Shipbuilding & Marine Engineering Co., Ltd2022-122013-7-15
Drillship, 11,815 Water DepthSamsung Heavy IndustriesSamsung Heavy Industries2022-042013-7-15
Drillship, 11,815 Water DepthSamsung Heavy IndustriesSamsung Heavy Industries2022-012013-7-15
Drillship, 12,000 Water DepthDaewoo Shipbuilding & Marine Engineering Co., LtdValaris Plc2023-122013-6-24
Drillship, 10,000 Water DepthJurong AracruzSete Brasil2022-032013-2-14
Drillship, 12,000 Water DepthSamsung Heavy IndustriesSamsung Heavy Industries2023-012013-1-22
Drillship, 5,000 Water DepthShanghai ShipyardShanghai Shipyard2023-012012-12-31
Drillship, 5,000 Water DepthShanghai ShipyardShanghai Shipyard2022-072012-12-31
Drillship, 12,000 Water DepthDaewoo Shipbuilding & Marine Engineering Co., LtdValaris Plc2023-122012-9-27
Drillship, 10,000 Water DepthJurong AracruzSete Brasil2022-122012-2-6
Drillship, 5,000 Water DepthShanghai ShipyardShanghai Shipyard2022-012011-9-23
Drillship, 10,000 Water DepthDaewoo Shipbuilding & Marine Engineering Co., LtdDaewoo Shipbuilding & Marine Engineering Co., Ltd2022-012008-6-1
 
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China Shipbuilding, 2014