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The Fleet  Our Rigs List by Water Depth Sedco 709
Fleet Specifications
| Sedco 709 |
| The SEDCO 709 is an Earl & Wright Sedco 700 DP design semi-submersible drilling unit capable of operating in water depths up to 5,000 ft using 18¾in 15,000 psi BOP and 21in OD marine drilling riser. |
| Rig Type |
Other Deepwater |
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| Design |
Earl & Wright Sedco 700 DP |
| Builder |
Hawker Siddley Canada Ltd., Halifax, Canada |
| Year Built |
1977; Life Enhancement 1999 |
| Classification |
ABS Class +A1 Colum Stabilized Drilling Unit AMS |
| Flag |
Liberia |
| Accommodation |
124 berths |
| Helideck |
83 ft x 83 ft, rated for S-61 or Chinook |
| Moonpool |
16 ft x 22 ft |
| Station Keeping |
Dynamically Positioned |
| Max Drill Depth |
25,000 ft / 7,620 m |
| Max Water Depth |
5,000 ft / 1,524 m |
| Operating Conditions |
Wave: 70 ft @ 11.7 sec; Wind: 70 knots; Current: 2.4 knots |
| Storm Conditions |
Wave: 110 ft @ 18.8 sec; Wind: 100 knots; Current: 2.4 knots |
Technical Dimensions
| Length |
300 ft |
91 m |
| Breadth |
262 ft |
80 m |
| Depth |
113 ft |
34 m |
| Operating Draft |
75 ft |
23 m |
| Ocean Transit Draft |
21 ft |
6 m |
| VDL - Operating |
3,164 st |
2,871 mt |
Capacities
| Liquid Mud |
4,455 bbls |
25,013 cu ft |
708 cu m |
| Drill Water |
5,808 bbls |
32,609 cu ft |
923 cu m |
| Potable Water |
1,184 bbls |
6,648 cu ft |
188 cu m |
| Fuel Oil |
12,393 bbls |
69,580 cu ft |
1,969 cu m |
| Bulk Mud |
|
11,180 cu ft |
316 cu m |
| Bulk Cement |
|
11,180 cu ft |
316 cu m |
| Sack Material |
3,000 sacks |
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Drilling Equipment
| Derrick |
Lee C. Moore 185 ft x 50 ft x 40 ft, 1300 kips GNC with 12 lines |
| Drawworks |
Oilwell E-3000, 2000 hp input with Elmagco 7838 auxiliary brake |
| Motion Compensator |
NL Shaffer DSC-18-500-R-BO-D, 18 ft stroke, 500 kips operating, 1000 kips pinned |
| Top Drive |
Varco TDS-4S, 650 st |
| Rotary |
Oilwell A-495, 49½in opening, independent drive |
| Pipe Handling |
Manual |
| Mud Pumps |
3 x Oilwell A 1700-PT, 1600 hp each |
| Shale Shakers |
5 x Swaco ACLS Dual Cascading Shakers |
| Desander |
N/A |
| Desilter |
N/A |
| Mud Cleaner |
N/A |
| BOP |
2 x Hydril MPL Type B Double U 18¾in 15K ram preventers; 1 x Vetco H4 ExF 18¾in 15K wellhead connector |
| LMRP |
2 x NL Shaffer Type Wedge Cover 18¾in 10K annulars; 1 x Vetco H4 HA 18¾in 15K riser connector |
| Diverter |
Vetco KFDS-500, 49½in max bore size, 750 psi working pressure |
| Control System |
Tritech electro-hydraulic multiplex control system, 300 gal surface, 480 gal subsea |
| Riser |
Vetco FD-8, 21in OD x 65 ft and 50 ft long riser with 3in ID C&K lines |
Riser
Tensioners |
16 x Rucker 80 kips, 50 ft travel |
Guideline
Tensioners |
N/A |
Podline
Tensioners |
N/A |
| Choke & Kill |
WOM 3-1/8in 10K H2S trim with 2 x adjustable chokes & 2 x power chokes |
| Cementing |
Haliburton 15,000 psi (third party equipment) |
Machinery
| Main Power |
7 x EMD 20-645-E9 rated at 3200 hp & 1 x EMD 16-645-ED rated at 2150 hp generator sets |
| Emergency Power |
1 x Detroit Diesel 16-V-71 driving 1 x Delco E6990 350 kW generator |
| Power Distribution |
Baylor Thyrig II 20,000 CEGELEC PLC Control SCR Sytem, 6 bays, 1875 kW, 750 V output |
| Deck Cranes |
2 x National OS-435, 120 ft boom plus 10 ft jib, 62.5 st @ 30 ft |
| Thrusters |
8 x Pleuger/Baylor variable blade azimuthing thrusters, 3000 hp each |
| Propulsion |
See Thrusters |
Mooring Equipment
| Winches |
4 x Baylor 500-SHZ, 1000 kips hold, 500 kips stall |
| Wire/Chain |
4 x 1,500 ft x 3in ORQ chains |
| Anchors |
4 x 12 mt LWT Baldt |
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