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The Fleet  Our Rigs List by Water Depth Sedco 704
Fleet Specifications
| Sedco 704 |
| The SEDCO 704 is a Sedco 700 design semi-submersible drilling unit capable of operating in harsh environments and water depths up to 1,200 feet using a 18¾in 15,000 psi BOP and a 21in OD marine drilling riser. |
| Rig Type |
Other Floaters |
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| Design |
MODU (CSDU) Earl & Wright Sedco 700 series |
| Builder |
Hawker Siddley, Halifax, NS Canada |
| Year Built |
1974 |
| Classification |
ABS Class : +A1 E M CSDU +PAS |
| Flag |
Liberia |
| Accommodation |
99 berths |
| Helideck |
rated for Sikorsky 61 or SuperPuma |
| Moonpool |
|
| Station Keeping |
Moored |
| Max Drill Depth |
25,000 ft / 7,620 m |
| Max Water Depth |
1,000 ft / 305 m |
| Operating Conditions |
Significant Wave: 25 ft; Wind: 40 knots; Current: 2.4 knots |
| Storm Conditions |
Maximum Wave: 110 ft; Wind: 100 knots; Current: 2.4 knots |
Technical Dimensions
| Length |
295 ft |
90 m |
| Breadth |
245 ft |
75 m |
| Depth |
130 ft |
40 m |
| Operating Draft |
83 ft |
25 m |
| Ocean Transit Draft |
21 ft |
6 m |
| VDL - Operating |
3,198 st |
2,902 mt |
Capacities
| Liquid Mud |
2,400 bbls |
13,475 cu ft |
381 cu m |
| Drill Water |
8,700 bbls |
48,846 cu ft |
1,382 cu m |
| Potable Water |
1,400 bbls |
7,860 cu ft |
222 cu m |
| Fuel Oil |
6,950 bbls |
39,021 cu ft |
1,104 cu m |
| Bulk Mud |
|
7,700 cu ft |
218 cu m |
| Bulk Cement |
|
7,910 cu ft |
224 cu m |
| Sack Material |
2,720 sacks |
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Drilling Equipment
| Derrick |
Lee C Moore Mast, 160 ft, 590mt nominal capacity |
| Drawworks |
Oilwell E-3000, 3000 hp |
| Motion Compensator |
Rucker Shaffer 400-18, 182mt operating (453mt pinned) |
| Top Drive |
Varco TDS 5H |
| Rotary |
Oilwell with 49½in opening |
| Pipe Handling |
|
| Mud Pumps |
2 x Oilwell 1700-PT (1,600 hp) |
| Shale Shakers |
3 x Thule VSM 100 shale shakers |
| Desander |
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| Desilter |
|
| Mud Cleaner |
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| BOP |
2 x Hydril Type x double 18¾in 15,000 psi; CIW wellhead connector |
| LMRP |
1 x Hydril GA GX 18¾in 10,000 psi annular; 1 x Shaffer NL 18¾in 5,000 psi annular; 1 x Vetco H4 and 1 x Cameron HC riser connectors |
| Diverter |
Hughes Regan KFDS-3, Pressure rating : 500psi |
| Control System |
Koomey hydraulic control system w/ Glycol injection system |
| Riser |
CIW RD 21in OD riser with 3in ID C&K lines. |
Riser
Tensioners |
290mt max. tensioning capacity |
Guideline
Tensioners |
|
Podline
Tensioners |
|
| Choke & Kill |
McEvoy 15,000 psi, H2S Trim |
| Cementing |
Third Party Equipment |
Machinery
| Main Power |
3 x EMD diesels driving 3 x 2500kW generators |
| Emergency Power |
1 x Detroit Diesel 16V-71 driving 1 x 350 kW generator |
| Power Distribution |
12 x Baylor SCR System |
| Deck Cranes |
2 x National OS-435, 50mt at 30 ft, 12mt at 120 ft max radius |
| Thrusters |
4 x 1600 hp Baylor 120-2000 azimuthing thrusters |
| Propulsion |
Thrusters |
Mooring Equipment
| Winches |
8 x Baylor, 1000 kips hold, 500 kips stall |
| Wire/Chain |
8 x 4,300 ft of 3 inch chain |
| Anchors |
8 x 12mt Stevpris anchors |
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