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The Fleet  Our Rigs List by Location Shelf Explorer
Fleet Specifications
| Shelf Explorer |
| The TRANSOCEAN SHELF EXPLORER is a 3 leg CFEM T-2005-C cantilever Jackup capable of operating in water depths up to 300 feet. A 13 5/8 in 10,000 psi BOP is used to obtain maximum drilling depths up to 25,000 feet. |
| Rig Type |
Non-U.S. Jackups |
 |
| Design |
CFEM T2005-C, cantilever jackup. |
| Builder |
CFEM, Dunkirk, France |
| Year Built |
1982 |
| Classification |
DnV 1A1 Self Elevating Drilling Unit |
| Flag |
Liberia |
| Accommodation |
84 berths + 2 Hospital berths |
| Helideck |
72ft x 72ft; rated for Sikorsky S-61N |
| Max Drill Depth |
25,000 ft / 7,620 m |
| Max Water Depth |
300 ft / 91 m |
| Operating Conditions |
Wave: 32.9 ft; Wind: 50 kts; Current: 1.0 kts; w/ variable air gap |
| Storm Conditions |
Significant Wave: 75 ft, Wind: 83 Knots, Surface Current: 2 Knots |
Technical Dimensions
| Length |
246 ft |
75 m |
| Breadth |
283 ft |
86 m |
| Depth |
25 ft |
8 m |
| Ocean Transit Draft |
18 ft |
5 m |
| VDL - Operating |
3,196 st |
2,900 mt |
Capacities
| Liquid Mud |
1,690 bbls |
9,489 cu ft |
269 cu m |
| Drill Water |
4,500 bbls |
25,265 cu ft |
715 cu m |
| Potable Water |
1,970 bbls |
11,061 cu ft |
313 cu m |
| Fuel Oil |
2,300 bbls |
12,913 cu ft |
365 cu m |
| Bulk Mud |
|
5,500 cu ft |
156 cu m |
| Bulk Cement |
|
5,500 cu ft |
156 cu m |
| Sack Material |
2,888 sacks |
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Drilling Equipment
| Derrick |
160 ft x 36 ft x 36 ft; 453mt nominal capacity |
| Drawworks |
National 1625-DE 3000 hp w/ 1½in drill line |
| Top Drive |
Varco TDS-4, 454mt |
| Rotary |
National C-375, 37½in opening |
| Pipe Handling |
Varco AR 3200 Iron Roughneck |
| Mud Pumps |
3 x National 12-P-160 pumps (1600hp) |
| Shale Shakers |
3 x Oil Tools FLC Plus 48; 1 x Oil Tools FLC HI |
| Desander |
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| Desilter |
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| Mud Cleaner |
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| BOP |
1 x Cameron 13 5/8in 5,000 psi annular, 2 x Cameron 13 5/8in 10,000 psi rams (1 single 1 double); 1 x Shaffer 21 1/4in 2,000 psi annular |
| Diverter |
Shaffer 30 in, Pressure rating: 1,000 psi |
| Control System |
NL Koomey T25240-3B accumulator, control manifold and remote control |
| Choke & Kill |
10,000 psi choke manifold |
| Cementing |
Dowell CPS 300, 10,000psi diesel |
Machinery
| Main Power |
3 x Wartsila 2,800hp driving 2,500kw generators |
| Emergency Power |
1 x Raudounin 372 KW, 1 x MOTORMIL 332 kw |
| Power Distribution |
5-SCR (J. Schneider + Cegelec) |
| Deck Cranes |
2 x National OS-215, 120ft boom, 41mt @ 30ft, 7.25 mt @ 105 ft |
Jackup Specifications
| Legs |
3ft x 438ft (including spud can) |
| Leg Spacing |
216ft Transverse; 187ft Longitudinal |
| Spud Cans |
13ft x46 ft diameter |
| Jacking System |
CFEM / Electro-Mechanical |
| Cantilever/Slot |
Cantilever |
Mooring Equipment
| Winches |
4 x Brissoneau et Lotz / 6090-5850 |
| Wire/Chain |
2 x 2,296ft x 2 1/4in wire; 2 x 2,953ft x 1-1/4 in wire |
| Anchors |
2 x Vincinay/ GS; 2 x Bruce |
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