Turret mooring system of FPSO. A mooring turret is installed at the centre of the ship, where all anchoring lines terminate and around which the ship is free to. Thirty years ago, SBM Offshore pioneered the turret concept to moor vessel- based FPSOs. Since then we’ve installed nearly 50 turrets around the world. Floating Production Storage and Offloading vessels, or FPSOs, are offshore from the seafloor to the vessel’s turret and then to the FPSO on the water’s surface.

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Turret mooring system of FPSO

The turret fulfils more functions than weathervaning. Comments In relatively calm waters, such as in West Africaturrets can be located externally to the ship structure, hanging off the bow of the FPSO. The turret supports the multi pass fluid swivel and forms the interface between sub-sea facilities and topsides. One day – One Turrte. It also up lift the oil and gas and associated water and condensates production risers as well trret it supports piping for water or gas injection when used.

Permanently moored, FPSOs are viable development solutions for a number of different offshore field situations. Turreh will not be published required. For harsher environments like the North Seathe turret is generally located internally.

After processing, an FPSO stores oil or gas before offloading periodically to shuttle tankers or transmitting processed petroleum via pipelines.

The processing equipment aboard the FPSO is similar to what would be found atop a production platform. How Does Well Control Work? This Azurite FDPSO incorporates deepwater drilling equipment that will help to develop the field and can be removed and reused after all the Azurite production wells have been drilled. But the design of the external turret make it easier to be mounted on tankers converted into FPSO.

An advantage of tutret internal turret in comparison to the external turret is that mooring forces can be transferred more easily into the hull. How Does Artificial Lift Work?


Turret mooring system of FPSO

The external turret is mostly set-up above the waterline, but sometimes also under. Usually tied to multiple subsea wells, FPSOs gather hydrocarbons from subsea production wells through a series of in-field pipelines. Being positioned outside of the hull the external turret can bear less risers and production equipment than internal turret.

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Because FPSOs can be disconnected from their moorings, these offshore production vessels are optimal for areas that experience adverse weather conditions, such as cyclones and hurricanes. Leave a Reply Click here to cancel reply. NACE International With programs developed, peer reviewed, and taught by industry experts, NACE provides corrosion control training and certification to help students launch a career, broaden their expertise, and provide greater industry recognition and credibility.

Besides this incident, FPSOs have spilled less than approximately barrels of oil combined. Crude oil that is stored onboard is frequently transferred to shuttle tankers or ocean barges going ashore, via a loading hose. It comprises a steal box located at the bow or stern of the vesselwhich provides a foundation for the bearing and turret.

While gas is many times transferred to shore via pipeline or re-injected into the field to boost production. The basic design of most FPSOs encompasses a ship-shaped vessel, with processing equipment, or topsides, aboard the vessel’s deck and hydrocarbon storage below in the double hull. More How it Works Articles. Wild Well Control Backed by a heritage of more than 40 years of well control experience, the Wild Well University Well Control Training Program turref action-oriented curricula designed to challenge students in both individual and team performance scenarios.

Once tapped by subsea wells, hydrocarbons are transmitted through flowlines to risers, which transport the oil and gas from the seafloor to the vessel’s turret and then to the FPSO on the water’s surface. If the turret is attached to the floating unit, the turret is part of the mooring system and called Turret Mooring system.

Sometimes it can be found in the middle. The electrical power supply of submerged equipment, the control system, all the information and communication systems pass also through the turret. A central mooring system allows the vessel to rotate freely to best respond to weather conditions, or weathervane, while spread-mooring systems anchor the vessel from various locations on the seafloor.


Internal turret mooring systems also allow vessels to remain on location permanently. Moored in place by various mooring systems, FPSOs are effective development solutions for both deepwater and ultra-deepwater fields. The turretsmooring lines and risers can be designed to be: This provides a more operational uptime and less risk of tanker collision compared with spread-moored FPSO s.

Additionally, because FPSOs can be moved, they are a more economical solution for more marginal fields, in that the vessel can be moved to another development and redeployed once the original field has been depleted. Hydrocarbons are then transferred to the vessel’s double-hull for storage. How Does Gas Injection Work?

The MJEL from TU Law is designed to advance your understanding of the laws that govern the energy industry and is offered percent online to allow you to enhance your career potential without having to leave your current position. In relatively calm waters, such as in West Africaturrets can be located externally to the ship structure, hanging off the bow of the FPSO. The turret sinks beneath the waves and can be reconnected later.

Floating Production Storage and Offloading vessels, or FPSOs, are offshore production facilities that house both processing equipment and storage for produced hydrocarbons. A swivel provides product and utility connections between the tanker facilities and the seabed.

Depending on the type of vessel its operations location internal or external turret may be used. For more information and data about oil and gas and petrochemical projects go to Project Smart Explorer.