Specifications - West Seno, Makassar Strait Deepwater Development, Indonesia
| Key Data | |
|---|---|
| Operator | Unocal |
| Water depths | 2,400ft to 3,400ft |
| Reservoir sands | Miocene |
| Structure | Four-way dipping north-south oriented faulted anticline |
| Porosity | Up to 30% |
| Permeability | 10mD to 1,000mD |
| Discovery | 1998 |
| Wells | West Seno 2 (205ft pay); West Seno 1 (270ft oil, 103ft gas); West Seno 5 (60ft oil, 141ft gas); West Seno 3 (24ft oil, 39ft gas); West Seno 7 (163ft oil); West Seno 8 (127ft oil, 97ft gas) |
| Production phase | August 2003 |
| Production rates | 40,000b/d |
| Export | 12in diameter pipelines to Santan terminal, 40 miles away |
| Pipelay vessel | Lorelay |
| Total pipeline length | 59.5km |
| TLP A Field Development | |
| Installed | February 2003 |
| Wells | 28 wells |
| Deck weight | 1,700t |
| Hull | 4,800t |
| Tendons | 3,200ft |
| Segments | 18ft x 165ft |
| Diameter | 26in |
| Wall thickness | 1.036in |
| Tender assist vessel | West Alliance |
| TLP B Field Development | |
| Installed | 2005 |
| Location | 3 miles from TLP A |
| Wells | 20 |
| Well slots | 24 |
| Completion | 2006 |
| FPU | |
| Location | 500m from TLP A |
| Mooring | Spread-moored barge |
| Water depth | 3,200ft |
| Processing capacity | 60,000b/d oil, 150million ft³/d gas, 40,000b/d water |
| Reservoir support | 50,000ft³/d gas |
| Hull weight | 6,500t |
| Topsides weight | 1,900t |
| Total weight | 8,400t |
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