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Nearly half of Bluewater’s SPM installations to date have been CALM systems, so named for the characteristic curve of the anchor legs that hold the buoy in position. These buoys are also often referred to as a single buoy mooring, monobuoy or loading buoy.
CALM buoys can be designed to berth any size tanker up to and including Ultra Large Crude Carriers (ULCCs).
Main applications of a CALM system:
- Short term mooring: for import and export of fluids between onshore or offshore facilities and a tanker
- Permanent Mooring: for production and storage systems
- Semi-permanent Mooring: permanent mooring with easy disconnect capability to evacuate the facility in case of severe weather conditions.
Bluewater supplies two types of Buoy systems:
- Turntable Buoy
: buoy with a geostatic fixed buoy body (moored to the seabed) and a rotating mooring table (Conventional Design)
- Turret Buoy: buoy with a geostatic turret and a buoy body, which is rotating around the turret.
Bluewater’s concept of turret mooring has been adopted industry-wide as the major concept for permanently mooring tankers such as Floating Production Storage and Offloading (FPSO) units. |
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Pictured is a recent Turret Buoy installed off the port of Fujairah. A buoy was chosen as the most cost effective alternative compared to a jetty extension. |
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For more information about the distinct features of these two buoy types, refer to the Turret & Turntable Buoy section. |
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