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The Fleet  Our Rigs List by Water Depth Sedco 707
Fleet Specifications
| Sedco 707 |
| The SEDCO 707 is a Sedco 700 design semi-submersible drilling unit capable of operating in harsh environments and water depths up to 6,500 feet using a 18¾in 15,000 psi BOP and a 21in OD marine drilling riser. |
| Rig Type |
Other Deepwater |
 |
| Design |
MODU (CSDU) Earl & Wright SEDCO 700 |
| Builder |
Avondale Shipyards, New Orleans, USA |
| Year Built |
1976/1997 |
| Classification |
ABS Class - A1 EM +AMS +DPS-2 |
| Flag |
Liberia |
| Accommodation |
112 berths |
| Helideck |
rated for Silkorsky S-61N |
| Moonpool |
|
| Station Keeping |
Dynamically Positioned |
| Max Drill Depth |
25,000 ft / 7,620 m |
| Max Water Depth |
6,500 ft / 1,981 m |
| Operating Conditions |
Significant Wave: 25 ft; Wind: 50 knots; Current: 2 knots |
| Storm Conditions |
Maximum Wave: 60 ft; Wind: 100 knots; Current: 4 knots |
Technical Dimensions
| Length |
355 ft |
108 m |
| Breadth |
245 ft |
75 m |
| Depth |
113 ft |
34 m |
| Operating Draft |
74 ft |
23 m |
| Ocean Transit Draft |
26 ft |
8 m |
| VDL - Operating |
4,688 st |
4,254 mt |
Capacities
| Liquid Mud |
4,029 bbls |
22,621 cu ft |
640 cu m |
| Drill Water |
5,535 bbls |
31,076 cu ft |
879 cu m |
| Potable Water |
1,182 bbls |
6,636 cu ft |
188 cu m |
| Fuel Oil |
7,548 bbls |
42,378 cu ft |
1,199 cu m |
| Bulk Mud |
|
11,000 cu ft |
311 cu m |
| Bulk Cement |
|
11,000 cu ft |
311 cu m |
| Sack Material |
3,000 sacks |
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Drilling Equipment
| Derrick |
Dreco 185 ft; 490mt nominal capacity |
| Drawworks |
Oilwell E-3000, input hp 2,000 |
| Motion Compensator |
Rucker Shaffer; 272mt operating |
| Top Drive |
Varco TDS 3 |
| Rotary |
Oilwell with 49½in opening |
| Pipe Handling |
|
| Mud Pumps |
3 x Oilwell A 1700-PT (1,600 hp) |
| Shale Shakers |
3 x Thule VSM 100 shale shakers |
| Desander |
|
| Desilter |
|
| Mud Cleaner |
|
| BOP |
2 x Hydril Compac 18¾in 15,000 psi double rams; Vetco HD-H4 wellhead connector |
| LMRP |
1 x Hydril GX Dual Annuflex 18¾in 10,000psi; Vetco High Angle Release EXF riser connector |
| Diverter |
Hughes Regan KFDS, Pressure rating : 500psi |
| Control System |
Hydril E/H Multiplex control system w/ Glycol injection system |
| Riser |
101 x Vetco MR6-E 21in OD riser, 65 ft joints, with 3in ID C&K lines. |
Riser
Tensioners |
725mt max. tensioning capacity |
Guideline
Tensioners |
|
Podline
Tensioners |
|
| Choke & Kill |
McEvoy Type E 3in, 15000 psi, H2S Trim |
| Cementing |
Dowell Schlumberger; 15,000 psi unit |
Machinery
| Main Power |
6 x CAT 3612 diesels driving 6 x 2500kW generators |
| Emergency Power |
1 x CAT 3508 |
| Power Distribution |
2 x Baylor 20,000 FX3 SCR System |
| Deck Cranes |
2 x National OS-435, 49 mt at 30 ft, 11 mt at 120 ft max radius |
| Thrusters |
8 x 3000 hp Ulstein, fixed speed, variable pitch, azimuthing thrusters |
| Propulsion |
Thrusters |
Mooring Equipment
| Winches |
8 x JTHepburn, 1000 kips hold, 500 kips stall |
| Wire/Chain |
8 x 1,777 ft of 3 inch chain |
| Anchors |
4 x 15mt Baldt anchors |
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