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The Fleet  Our Rigs List by Water Depth Discoverer Enterprise
Fleet Specifications
| Discoverer Enterprise |
| The DISCOVERER ENTERPRISE is a double hulled dynamically positioned drillship (Astano FPSO design), capable of operating in moderate environments and water depths up to 3,049 m (10,000 ft) using a 18¾in 15,000 psi BOP and a 21 in OD marine riser. |
| Rig Type |
5th Generation Deepwater |
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| Design |
Transocean Offshore Enterprise Class Enhanced, double hull, dual activity drilling. |
| Builder |
Astano, Spain |
| Year Built |
1999 |
| Classification |
DNV Drill Class 1A1, EO DYNPOS, AUTR, DRIL, HELDK, CRANE, BIS, OIL STORAGE VESSEL |
| Flag |
Marshall Islands |
| Accommodation |
200 berths, with one and two-person cabins. 6 TOI offices and 2 client offices. |
| Helideck |
Sized for Sikorsky S-61 or Chinook 234 helicopter. |
| Moonpool |
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| Station Keeping |
Dynamically Positioned |
| Max Drill Depth |
35,000 ft / 10,668 m |
| Max Water Depth |
10,000 ft / 3,048 m |
| Operating Conditions |
Wind 80 knots, Wave 40 ft significant |
| Storm Conditions |
Wind 100 knots, Wave 50 ft significant, 2.2 knot current |
Technical Dimensions
| Length |
835 ft |
255 m |
| Breadth |
125 ft |
38 m |
| Depth |
62 ft |
19 m |
| Operating Draft |
40 ft |
12 m |
| Ocean Transit Draft |
0 ft |
0 m |
| VDL - Operating |
22,040 st |
20,000 mt |
Capacities
| Liquid Mud |
15,400 bbls |
86,463 cu ft |
2,447 cu m |
| Drill Water |
13,700 bbls |
76,919 cu ft |
2,177 cu m |
| Potable Water |
5,000 bbls |
28,072 cu ft |
794 cu m |
| Fuel Oil |
25,000 bbls |
140,363 cu ft |
3,972 cu m |
| Bulk Mud |
|
16,000 cu ft |
453 cu m |
| Bulk Cement |
|
16,000 cu ft |
453 cu m |
| Sack Material |
16,000 sacks |
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Drilling Equipment
| Derrick |
Dreco 4mm lb dual activity derrick 80x80x226 |
| Drawworks |
(2) Continental Emsco EH V 5000 hp w/ 2in line, gear driven |
| Motion Compensator |
2 x Varco/Shaffer CM-25-1000-DA crown mounted 907mt static |
| Top Drive |
(2) Varco TDS-8S 560mt, AC drive |
| Rotary |
(2) 60.5in Varco Hydraulic |
| Pipe Handling |
(2) Varco PRS-5 Pipe Racking Systems. (1) Varco Riser and Casing Tailing Head. |
| Mud Pumps |
(4) National 14-P-220, 7500 psi, 2200 hp |
| Shale Shakers |
8 x Brandt LCM-2D/CM-2 cascade shakers |
| Desander |
2 x SRS-3 w/ (3) 12in cones - (1500 gpm) |
| Desilter |
2 x Brandt SE-20 w/ (20) 4in cones (1200 gpm) |
| Mud Cleaner |
1 x Brandt mud shear pump kit |
| BOP |
Hydril 18¾in 15,000 psi, 6-ram system (4) VBRs, (1) blind, (1) shear; Cameron 15,000 psi wellhead connector. |
| LMRP |
Hydril 18¾in 10,000 psi Annuflex annular preventer; Vetco HD-H4 15,000 psi riser connector |
| Diverter |
Vetco CSO 60in bore support housing rate at 500 psi wp. |
| Control System |
Hydril electric multiplex system. |
| Riser |
112 x Vetco 21 in OD, 75ft joints with 15,000 psi 4½in ID C&K lines |
Riser
Tensioners |
2400mt maximum tensioning capacity |
Guideline
Tensioners |
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Podline
Tensioners |
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| Choke & Kill |
(1) W.O.M. 15,000 psi wp choke and kill manifold |
| Cementing |
Third Party Equipment |
Machinery
| Main Power |
4 x Wartsila 18V32 LNE, 9,772 hp plus (2) 12V32 LNEhp Wärtsilä engines. Generators: 6 x 8700 kva 11,000v |
| Emergency Power |
1 x Wartsila 6R32 LNE (3257 hp) |
| Power Distribution |
18 x Baylor/Cegelec 2000A, 750 VDC SCR Drives |
| Deck Cranes |
4 x HydraLift OKMCV 4000 knuckleboom cranes, lift radius 6.5m to 45m, 60mt @ 14m. |
| Thrusters |
Used for propulsion, 6x Aquamaster 7000 hp |
| Propulsion |
6 x Cegelec 5500kw, 1260vac, driving six AC motors; 6 x Aquamaster 7000hp thrusters. |
Mooring Equipment
| Winches |
N/A - DP Vessel |
| Wire/Chain |
N/A - DP Vessel |
| Anchors |
N/A - DP Vessel |
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