PROVEN DESIGN
- Xanadu has operated in Brazil since March 2015, first at FPSO P50 Petrobras (Anchor spread moored with external risers) until October 2015 and FPSO P53 Petrobras (Turret moored with internal risers).
- Xanadu achieved an uptime of 99.6% and 96.8% on P50 and P53 respectively under harsh weather conditions (historical data is collected from one year of operation in Brazil water based on detailed logging onboard).
- Flex Design has a transit speed up to 12 knts considerable higher than other rigs – 50 % lower fuel consumption in transit than other rigs with comparable displacement.
- Practical experience shows that also Flex Design has 30% less fuel consumption in DP mode than other comparable semi-submersible rigs.
In terms of hardware, POSH Xanadu has a unique design and engineering of the column that stabilises the semi-submersible unit. The design also provides the SSAV with superior sea-keeping capabilities, crew comfort, and lower hydrodynamic resistance.
SSAV’s unique hull design of a more efficient hydrodynamic ‘ship shape’ also allows it to achieve a general average speed of 9.5 kt and maximum speed of 11 kt during its mobilisation from Asia to Brazil in its maiden campaign.
Since then (December 2014), the SSAV has obtained a superior operating track record in the Campos Basin, achieving 99.5% gangway uptime, maintaining zero lost time incident (LTI), and supporting weather-vaning floating production storage and offloading (FPSO) vessel simultaneously.
| Weather Condition | Period | Location | Average Current (knts) | Max Swell | Max Wind (knts) | Gangway connected (h) | Not connected | Gangway Up time |
|---|---|---|---|---|---|---|---|---|
| P50 | Mar – Oct 15 | FPSO Brazil | 3.3 | 5.5/6.0 m | 55 | 4722.2 | 19.8 | 99.58 % |
| P53 | Oct 15 – Feb 16 | FPSO Brazil | 3.8/4.5 | 4.5/5.0 m | 45 | 2562.4 | 85.2 | 96.78 % |
P53 is moored in allocation with extreme current, POSH Xanadu has measured current up to 5.8 knts.