Jebel Dhanna #2 CALM
Scope of Work
SOFEC designed, constructed, and installed a CALM Buoy system to accommodate up to 450,000 dwt tankers.
General Description
| Client Name: | Abu Dhabi Company for Onshore Oil Operations (ADCO) |
| Contract Award: | October 1998 |
| Installation Date: | July 1999 |
| Application: | Crude Oil Export |
Project Specifications
| Water Depth | 23m (60ft) |
| Tanker Size | 450,000 dwt |
| Dimension | 11mØ x 4.5m |
| Floating Hose: | 2 x 20-in. |
| Underbuoy Hose: | 2 x 20-in. Chinese Lantern |
| Hawser System: | 14-in. Single grommet |
| Anchor Leg System: | 6 x 3-in. ORQ |
| Anchor System: | 13mt Drag anchors |
Design Environmental Criteria
Operational
| Significant Wave Height: | 1.3m (4.3ft) |
| Wind Velocity: | 28.8m/s (56 knots) |
| Current: | 1 m/s (1.95 knots) |
Survival
| Significant Wave Height: | 2.2m (7.2ft) |
| Wind Velocity: | 42.7m/s (83 knots) |
| Current: | 1 m/s (1.95 knots) |
Comments
This SOFEC export CALM system was installed in 23m water depth. This includes extension of the existing 36-in. sealines and removal of two existing CBM. This is the fourth project in which SOFEC has been involved in the replacement of a CBM system with a more efficient SPM system and the second for ADCO.