Jazan CALM Buoys
Scope of Work
SOFEC designed, constructed and supplied two Catenary Anchor Leg Mooring (CALM) Buoy systems for Saudi Arabian Oil Company installed in Jazan, Saudi Arabia.
One CALM Buoy system installed includes the complete buoy assembly, PLEM, anchoring system, hoses and telemetry/electrical package. The other fully outfitted CALM Buoy assembly is stored onshore as a spare.
The system is designed and fabricated in accordance with ABS Rules for Building and Classing Single Point Moorings to receive ABS +A1 Classification.
General Description
Client Name: | Saudi Arabian Oil Company |
Contract Award: | May 2014 |
Installation Date: | August 2018 |
Application: | Import Crude Oil |
Project Specifications
Water Depth (MSL): | 27.4m (90ft) |
Tanker Size: | 320,000 DWT |
Buoy Dimension | 12.5mØ x 5.3m |
Floating Hose: | 2 x 24-in. reducing to 20-in. |
Underbuoy Hose: | 2 x 24-in. Chinese Lantern |
Hawser System: | Dual 16-in. x 55m long |
Anchor Leg System: | 3.5-in. studless chain |
Anchor System: | Driven piles |
Design Environmental Criteria
Operational
Significant Wave Height: | 1.66m (5ft) |
Wind Velocity: | 26m/s ( 50.5 knots) squall |
Surface Current: | 0.2m/s ( 0.38 knots) |
Survival
Significant Wave Height: | 2.86m (9ft) |
Wind Velocity: | 62m/s (120.5 knots) squall |
Surface Current: | 0.37m/s (0.72 knots) |