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The Fleet  Our Rigs List by Water Depth Transocean Amirante
Fleet Specifications
| Transocean Amirante |
| The TRANSOCEAN AMIRANTE is a Modified Aker H3 design semi-submersible drilling unit capable of operating in moderate environments and water depths of 3,500 ft using 18¾in, 10,000 psi BOP and 21in OD marine riser. |
| Rig Type |
Other Floaters |
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| Design |
Modified Aker H-3 |
| Builder |
Rauma Repola Oy, Finland |
| Year Built |
1978; Converted 1981; Upgraded 1997 |
| Classification |
DNV + 1A1, Column Stabilized Drilling Unit |
| Flag |
Panama |
| Accommodation |
100 berths |
| Helideck |
86 ft x 86 ft; rated for Sikorsky S61-N helicopter |
| Moonpool |
19.7 ft x 19.5 ft |
| Station Keeping |
Moored |
| Max Drill Depth |
25,000 ft / 7,620 m |
| Max Water Depth |
3,500 ft / 1,067 m |
| Operating Conditions |
Significant Wave: 28 ft; Wind: 65 knots; Current: 2.1 knots |
| Storm Conditions |
Maximum Wave: 70 ft; Wind: 100 knots |
Technical Dimensions
| Length |
243 ft |
74 m |
| Breadth |
208 ft |
63 m |
| Depth |
120 ft |
37 m |
| Operating Draft |
67 ft |
20 m |
| Ocean Transit Draft |
22 ft |
7 m |
| VDL - Operating |
3,857 st |
3,500 mt |
Capacities
| Liquid Mud |
2,105 bbls |
11,819 cu ft |
334 cu m |
| Drill Water |
11,284 bbls |
63,354 cu ft |
1,793 cu m |
| Potable Water |
2,428 bbls |
13,632 cu ft |
386 cu m |
| Fuel Oil |
16,832 bbls |
94,503 cu ft |
2,674 cu m |
| Bulk Mud |
|
10,915 cu ft |
309 cu m |
| Bulk Cement |
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6,569 cu ft |
186 cu m |
| Sack Material |
7,422 sacks |
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Drilling Equipment
| Derrick |
Continental Emsco 180 ft x 40 ft x 40 ft; 454 mt nominal capacity |
| Drawworks |
Continental Emsco C3, 3000 hp, 1½in line; Elmago auxiliary brake |
| Motion Compensator |
Rucker Shaffer, 181 mt operating (453 mt pinned), 18 ft stroke |
| Top Drive |
Varco TDS-4S, 590 mt |
| Rotary |
Continental Emsco T-4950 with 49½in opening |
| Pipe Handling |
BJ semi-automatic piperacking system Type V |
| Mud Pumps |
3 x Continental Emsco FB-1600, 1600 hp each |
| Shale Shakers |
4 x Derrick Cascade |
| Desander |
See Mud Cleaner |
| Desilter |
1 x Derrick 420-T with 16 x 4in cones (1000 gpm) |
| Mud Cleaner |
1 x Derrick Hi-G with 2 x 12in and 20 x 4in cones |
| BOP |
2 x Cameron Type U 18 ¾in 10K double rams; 1 x Shaffer 18¾in 5K annular; Vetco H-4 connector |
| LMRP |
1 x Shaffer 5K 18¾in annular, Cameron Model 70 riser connector |
| Diverter |
Vetco KFDS-500; 750 psi with 2 x 12in OD flowlines |
| Control System |
Cameron BOP control system |
| Riser |
47 x Vetco HMF 21in OD riser; 75ft joints with 15,000 psi 3in ID C&K lines |
Riser
Tensioners |
Rucker Shaffer & Control Flow: 1080 kips total |
Guideline
Tensioners |
4 x Rucker 16 kips 40 ft travel |
Podline
Tensioners |
2 x Rucker 16 kips 40 ft travel |
| Choke & Kill |
Cameron 10,000 psi with 2 x adjustable chokes and 2 x remote Cameron WP chokes |
| Cementing |
Dowell Schlumberger diesel driven 15K (third party) |
Machinery
| Main Power |
4 x Wartsila 12V-200 diesels (2,816 hp); 4 x ABB/AMG-630L6 generator 2100 kW 600 V |
| Emergency Power |
1 x Caterpillar D-398 diesel (860 hp) driving 1 x GE 500 kW generator |
| Power Distribution |
13 x Siemens 1200 amps SCRs, 750 V DC output |
| Deck Cranes |
1 x Aker, 100 ft boom 40 mt @ 30 ft; 1 x Bucyrus Erie, 80 ft boom 44 mt @ 20 ft; 1 x Liebherr, 100 ft boom 30 mt @ 30 ft |
| Thrusters |
N/A |
| Propulsion |
N/A |
Mooring Equipment
| Winches |
4 x Pusnes D75 EAX double drum electric driven |
| Wire/Chain |
16 x 2,100ft x 3 1/8in wire; 8 x 3,500ft x 3in K4 chains; 8 x 600 ft 3in ORQ chains |
| Anchors |
8 x 12 mt Stevpris anchors |
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