HIRI CALM
Scope of Work
SOFEC designed, constructed and installed a CALM terminal for crude oil, bunker fuel, gasoil, kerosene and gasoline and fuel oil. This unique SOFEC CALM buoy is designed with a three-product swivel, which incorporates a crude oil circuit, a white product circuit, and an export sales circuit.
General Description
| Client Name: | Hawaiian Independent Refinery Inc. (HIRI) |
| Contract Awarded: | February 1986 |
| Installation Date: | January 1987 |
| Application: | Three Product - Crude, Bunker and White Oil Import |
Project Specifications
| Water Depth: | 31m (100ft) |
| Tanker Size: | 150,000 dwt |
| Dimension: | 11.5mØ x 4.0m |
| Floating Hose: | 2 x 16-in., 1 x 12-in. |
| Underbuoy Hose: | 2 x 16-in., 1 x 20-in. Chinese Lantern |
| Hawser System: | 18-in. Single grommet |
| Anchor Leg System: | 6 x 3.5-in. Grade U3 |
| Anchor System: | Unavailable |
Design Environmental Criteria
Operational
| Significant Wave Height: | 3m (9.9ft) |
| Wind Velocity: | 13.7m/s (26.6 knots) |
| Surface Current: | 0.9m/s (1.75 knots) |
Survival
| Significant Wave Height: | 9.3m (30.5ft) |
| Wind Velocity: | 27.4m/s (53.2 knots) |
| Surface Current: | 0.9m/s (1.75 knots) |
Comments
This three-product, six-leg CALM type SPM replaces an existing CBM that was installed into the CBMs existing anchor chain spread.
Client economically justified the project on the basis of reduced tanker demurrage resulting from the increased mooring and unloading efficiency of the CALM, which can operate in nearly all weather conditions at the site.
The installation into the existing CBM mooring pattern was accomplished by deleting two of the existing eight anchor legs, lengthening the remaining six legs for attachment to the CALM and installing an auxiliary gravity anchored PLEM.