FPSO Kizomba B Spread Mooring
Scope of Work
Contracted through Hyundai Heavy Industries, SOFEC was responsible for the design and analysis of the Kizomba B FPSO spread mooring system. The Kizomba B FPSO is a near-identical copy of the Kizomba A FPSO. The supply of the off-vessel equipment (wire, chain, piles) as well as the installation of the system was once again the responsibility of the EPC3 installation contractor.
The SOFEC spread mooring system is DnV classed.
General Description
| Client Name: | Esso Exploration Angola (Block 15) Ltd. |
| Contract Award: | March 2003 |
| Installation Date: | April 2005 |
| First Oil: | May 2005 |
| Vessel Size: | 375,000 dwt |
| Storage Capacity: | 2,200,000 bbls |
| Water Depth: | 1,016m (3,332ft) |
Design Environmental Criteria
(100-year storm)
| Swell: | Max. Swell: 4.5m (14.8ft) Max. Squall: 2.3m (7.5ft) |
| Sig. Wave Height: | Max. Swell: 0.2m (0.7ft) Max. Squall: 1.4m (4ft) |
| Wind Velocity: | Max. Swell: 7.5m/s (14.6 kts) Max. Squall: 28.4m/s (55.2 kts) |
| Current: | Max. Swell: 0.3m/s (0.6 kts) Max. Squall: 2m/s (3.9 kts) |
Riser System
Initial stage risers:
2 OOLs
2 SLORs
3 PIP SLORs
8 FTLs suspended between FPSO & TLP
Future maximum: Additional
12 SLORs and PIP SLHRs