You are here: Home » Products & Technology » Mooring systems » Turret Mooring systems » External Turret Mooring systems Floating Production & Storage Facilities Mooring systems Spread Mooring systems Single Point Mooring (SPM) Buoy Mooring systems Single Point Mooring (SPM) Tower systems Turret Mooring systems External Turret Mooring systems » Internal Turret Mooring systems Disconnectable Internal Turret Mooring systems Multi Product Swivels LNG Loading & Offloading Systems Floating Wind Systems Floating Tidal Systems Experience Overview Products & Technology Downloads After Sales Contact External Turret Mooring system External Turret Mooring systems The external turret mooring system includes a turret system that is located at the extreme end of an outrigger structure attached to the bow of the vessel. This turret contains one large-diameter 3-race roller main bearing that transfers both the vertical and the horizontal loads from the riser and mooring system to the outrigger structure. In addition, it transfers the own weight of the turret and the turntables above the main bearing to the outrigger. The turntables include the process facilities for commingling fluids from the risers using manifolds, as well as pigging facilities and/or chemical injection facilities to assure the flow in the risers. The swivel stack is located at the highest deck of these turntables and transfers fluid and electrical power to the turret access structure located on the outrigger. This access structure also provides support access to the different turntable decks. The external turret including (a part of) the outrigger can be installed as one integrated structure on the vessel bow, minimising the scope of work for the integration of the turret into the vessel. Furthermore this integration work can be executed while the vessel is afloat. Typically the cantilever type outrigger structure is integrated above the main deck of the vessel. However, depending on the departure angle of the mooring lines and on the size of the outrigger structure, part of the bow might need to be removed to avoid clashes between the vessel and the mooring lines. Optionally, risers are available that allow for fast disconnection from the turret. This disconnectable turret uses a buoy to keep the risers afloat when disconnected. Typically the disconnectable option is required when the vessel operates on dynamically positioned (DP) station keeping. Disconnection within minutes is required to avoid damage to the risers during failures in the DP system causing drift-off or drive-off conditions. About Bluewater Code of Conduct Vision & Mission Privacy Statement Company Profile Locations Contact HSEQ HSEQ Policy Certification Safety at Bluewater Contact Products & Technology Floating Production & Storage Facilities Mooring systems Multi Product Swivels LNG Loading & Offloading Systems Floating Wind Systems Floating Tidal Systems Experience Overview Products & Technology Downloads After Sales Contact Fleet & Operations What is an FPSO? FPSO Operations Our FPSO Fleet Operations Support Contact Careers Working At Bluewater Vacancies Recruitment Procedure Student & Graduates Career Events Contact News & Events News Brochures Events © 2021 Bluewater T +31 (0)23 711 5500 | Disclaimer ABOUT BLUEWATER HSEQ PRODUCTS & TECHNOLOGY FLEET & OPERATIONS CAREERS NEWS, MEDIA & EVENTS CONTACT US