External Turret

We are your leader in external turret systems.

For decades, SOFEC has led, and continues to lead the industry in the turnkey production of innovative, reliable, high-tech, external turret systems for a wide variety of FPSO and FSO applications operating further offshore, in deeper waters, and in harsher environments.

Nearly 30 years ago, we created and supplied the external turret system for the Hunt Yemen Yepco FSO, which today is still one of the largest moored FSO vessels in the world. To date, SOFEC has designed, built, and installed nearly 30 external turret mooring systems – more than any other company in the industry.

Building on that initial experience, our external turret systems have matured to embrace the most advanced technology, including swivel stacks to accommodate higher subsea production pressures and multiple risers for transfer of produced oil, gas, and water injection, as well as electricity, hydraulics, and fiber optics from subsea to the vessel or vice versa.

Industry Highlights

  • OSX-3: In Brazil on an FPSO, installed an external turret system based on a 9.5-meter segmented roller bearing in 110 meters of water, accommodating 26 risers and umbilicals
  • Rang Dong: Supplied an external turret mooring system designed to withstand 10-meter typhoon waves in only 45 meters of water depth in offshore Vietnam
  • Floating LNG Moorings: SOFEC has provided Petronas with FLNG SATU and FLNG DUA for varying water depths in SE Asia.  Our highlights can be found here.

Product Features

  • Industry-leading, proven technology
  • Accommodates many risers in the full range of water depths
  • Permits vessels to weathervane 360° in moderate to extreme sea conditions
  • Economical and fast to produce
  • Frees up vessel processing and storage space
  • Flexibility to mount at either the bow or stern of converted tankers or newly built vessels

Internal Disconnectable Turret

We are your experts in internal disconnectable turret mooring systems.

In fact, we designed and delivered the largest, most sophisticated, and deepest internal disconnectable turret mooring systems in the world. SOFEC’s internal disconnectable turret enables vessels to disconnect and sail away to avoid typhoons, hurricanes, and icebergs in remote, deep water, and other challenging environments. Ships return to normal production operations with a quick, reliable reconnect sequence. The design adapts to a wide range of water depths.

Industry Highlights

  • Terra Nova: An elaborate, disconnectable turret for the iceberg-prone Northern Atlantic  Grand Banks, Canada
  • Prenees, Stybarrow and Santos: Three disconnectable turret systems off northwest Australia
  • China: Designed and supplied SOFEC’s first internal disconnectable turret in 1993 for floating storage and offloading vessel moored in the South China Sea
  • Canada: Delivered the first disconnectable turret for an iceberg-prone region in the Terra Nova Field, offshore Newfoundland in the Grand Banks
  • Australia: Three back-to-back-to-back units delivered between January 2005 and February 2010 provided incremental design enhancements highlighting continual improvement of SOFEC’s disconnectable turret technology
  • Worldwide: SOFEC leads the industry in number or systems in operation and overall operational experience with disconnectable systems.

Product Features

  • Disconnects to avoid typhoons, hurricanes and icebergs
  • Returns to normal production operations with a reliable quick and easy reconnect sequence
  • Permits vessels to weathervane 360° thereby reducing mooring loads while connected
  • Enhanced mooring load capacities
  • Adapts to a wide range of water depths from 60 to more than 3,000 meters

Internal Permanent Turret

Count on us for your internal permanent turret mooring systems.

FPSO and FSO vessels operate further offshore, in deeper waters, and in harsher environments. Internal permanent turret mooring systems enable vessels to remain securely operational despite harsh conditions.

Suitable for both existing and new-built vessels, the permanent internal turret offers greater mooring and fluid transfer capabilities, accommodating 100 or more risers and adapting to a wide range of water depths in the world’s harshest offshore environments.

Industry Highlights

  • Brazil: SOFEC’s P-34 Turret Mooring System, installed in 1997 at a depth of 835 meters, claimed title to the world’s largest and deepest internal permanent turret, with 34 risers and umbilicals.
  • China: SOFEC’s Luihua Turret Mooring System has remained permanently moored in Typhoon Alley for more than 24 years.
  • Mozambique: East Africa’s first FLNG mooring system Coral FLNG SA is one of the largest turrets ever built with a main bearing diameter of 25 meters.
  • North Sea: The FSO Maersk Culzean Internal Turret Mooring System is designed for the significant harsh weather offshore UK and incorporates EU Directives and UK HSE requirements.

Product Features

  • Vessels remain secure in the most demanding design conditions
  • Enhanced mooring load capacities
  • Allows vessels to weathervane 360° in normal and severe conditions
  • Adapts to a wide range of water depths from 60 meters to more than 3,000 meters
  • Accommodates 100 or more risers

Spread Mooring

We are your expert in spread mooring systems.

Over the past three decades, SOFEC has supplied spread mooring systems for nearly 20 vessels worldwide.

Our spread mooring systems use four groupings of anchor legs arranged symmetrically. The anchor legs attach to the bow and stern on the port and starboard to secure the vessel in place with a fixed heading.

Industry Highlights

  • Multiple deep-water mooring systems in Brazil and West Africa
  • Many of the spread moored systems are located in water depths greater than 1000m.
  • All of SOFEC’s deep-water spread moored systems are moored via a hybrid chain and polyester rope system.
  • SOFEC leads the industry in the supply and operation of systems moored with polyester rope.

Product Features

  • Uses traditional shipboard mooring equipment
  • Does not require turret structure, bearing, or swivels
  • Accepts all types of anchor leg configurations
  • Easily accommodates large numbers of risers and umbilicals

Tower Yoke

We are here for vessels operating in shallower waters, too.

Since the early 2000s, SOFEC has developed and supplied tower yoke mooring systems for vessels operating in shallow waters including the development of the world’s first disconnectable system for ships’ moorings installed in cyclonic storm prone regions.

Our highly specialized tower yoke systems are cost-effective, reliable solutions for permanently mooring FPSO and FSO vessels in shallow water. The yoke system links the vessel to a fixed tower outfitted with a mechanical turntable, which enables the vessel to weathervane freely around the tower. The yoke allows the vessel to pitch and roll, sway and yaw, and heave and surge without inducing unacceptable loads on the mooring links.

Industry Highlights

  • HYSY113: Second tower yoke mooring for FPSO, Bohai Bay, China
  • Design of world’s first disconnectable tower yoke mooring, Bay of Campeche, Mexico
  • China: SOFEC built the world’s largest tower yoke mooring system, which operates on an FPSO in Bohai Bay
  • Mexico: The world’s first disconnectable tower yoke mooring for shallow waters, Gulf of Mexico
  • Indonesia: The world’s first FSRU tower yoke mooring system for shallow waters
  • SOFEC leads the industry with the most operating tower yoke systems
  • Disconnectable Tower Yoke Mooring: The industry’s first Disconnectable Tower Yoke Mooring System is based on other SOFEC standard disconnectable systems.  This technology can be seen here.

Product Features

  • Economical and reliable for vessels in shallower waters
  • Tower yoke system links a vessel to a fixed tower
  • Flexibility to mount on the bow or the stern of a converted tanker or new-built vessel
  • Permits vessel to weathervane 360° thereby keeping environmental loads manageable
  • The yoke, connected to the turntable with specially designed joints, allows the vessel to move with all six degrees of freedom
  • A large, water-filled ballast tank on the yoke minimizes vessel excursions
  • Fluid travels via flexible hoses between the tower and the vessel
  • Ample deck space is available for auxiliary equipment
  • Easily accessible with walkways to access the tower
External Turret

External Turret

We are your leader in external turret systems.

For decades, SOFEC has led, and continues to lead the industry in the turnkey production of innovative, reliable, high-tech, external turret systems for a wide variety of FPSO and FSO applications operating further offshore, in deeper waters, and in harsher environments.

Nearly 30 years ago, we created and supplied the external turret system for the Hunt Yemen Yepco FSO, which today is still one of the largest moored FSO vessels in the world. To date, SOFEC has designed, built, and installed nearly 30 external turret mooring systems – more than any other company in the industry.

Building on that initial experience, our external turret systems have matured to embrace the most advanced technology, including swivel stacks to accommodate higher subsea production pressures and multiple risers for transfer of produced oil, gas, and water injection, as well as electricity, hydraulics, and fiber optics from subsea to the vessel or vice versa.

Industry Highlights

  • OSX-3: In Brazil on an FPSO, installed an external turret system based on a 9.5-meter segmented roller bearing in 110 meters of water, accommodating 26 risers and umbilicals
  • Rang Dong: Supplied an external turret mooring system designed to withstand 10-meter typhoon waves in only 45 meters of water depth in offshore Vietnam
  • Floating LNG Moorings: SOFEC has provided Petronas with FLNG SATU and FLNG DUA for varying water depths in SE Asia.  Our highlights can be found here.

Product Features

  • Industry-leading, proven technology
  • Accommodates many risers in the full range of water depths
  • Permits vessels to weathervane 360° in moderate to extreme sea conditions
  • Economical and fast to produce
  • Frees up vessel processing and storage space
  • Flexibility to mount at either the bow or stern of converted tankers or newly built vessels
Internal Disconnectable Turret

Internal Disconnectable Turret

We are your experts in internal disconnectable turret mooring systems.

In fact, we designed and delivered the largest, most sophisticated, and deepest internal disconnectable turret mooring systems in the world. SOFEC’s internal disconnectable turret enables vessels to disconnect and sail away to avoid typhoons, hurricanes, and icebergs in remote, deep water, and other challenging environments. Ships return to normal production operations with a quick, reliable reconnect sequence. The design adapts to a wide range of water depths.

Industry Highlights

  • Terra Nova: An elaborate, disconnectable turret for the iceberg-prone Northern Atlantic  Grand Banks, Canada
  • Prenees, Stybarrow and Santos: Three disconnectable turret systems off northwest Australia
  • China: Designed and supplied SOFEC’s first internal disconnectable turret in 1993 for floating storage and offloading vessel moored in the South China Sea
  • Canada: Delivered the first disconnectable turret for an iceberg-prone region in the Terra Nova Field, offshore Newfoundland in the Grand Banks
  • Australia: Three back-to-back-to-back units delivered between January 2005 and February 2010 provided incremental design enhancements highlighting continual improvement of SOFEC’s disconnectable turret technology
  • Worldwide: SOFEC leads the industry in number or systems in operation and overall operational experience with disconnectable systems.

Product Features

  • Disconnects to avoid typhoons, hurricanes and icebergs
  • Returns to normal production operations with a reliable quick and easy reconnect sequence
  • Permits vessels to weathervane 360° thereby reducing mooring loads while connected
  • Enhanced mooring load capacities
  • Adapts to a wide range of water depths from 60 to more than 3,000 meters
Internal Permanent Turret

Internal Permanent Turret

Count on us for your internal permanent turret mooring systems.

FPSO and FSO vessels operate further offshore, in deeper waters, and in harsher environments. Internal permanent turret mooring systems enable vessels to remain securely operational despite harsh conditions.

Suitable for both existing and new-built vessels, the permanent internal turret offers greater mooring and fluid transfer capabilities, accommodating 100 or more risers and adapting to a wide range of water depths in the world’s harshest offshore environments.

Industry Highlights

  • Brazil: SOFEC’s P-34 Turret Mooring System, installed in 1997 at a depth of 835 meters, claimed title to the world’s largest and deepest internal permanent turret, with 34 risers and umbilicals.
  • China: SOFEC’s Luihua Turret Mooring System has remained permanently moored in Typhoon Alley for more than 24 years.
  • Mozambique: East Africa’s first FLNG mooring system Coral FLNG SA is one of the largest turrets ever built with a main bearing diameter of 25 meters.
  • North Sea: The FSO Maersk Culzean Internal Turret Mooring System is designed for the significant harsh weather offshore UK and incorporates EU Directives and UK HSE requirements.

Product Features

  • Vessels remain secure in the most demanding design conditions
  • Enhanced mooring load capacities
  • Allows vessels to weathervane 360° in normal and severe conditions
  • Adapts to a wide range of water depths from 60 meters to more than 3,000 meters
  • Accommodates 100 or more risers
Spread Mooring

Spread Mooring

We are your expert in spread mooring systems.

Over the past three decades, SOFEC has supplied spread mooring systems for nearly 20 vessels worldwide.

Our spread mooring systems use four groupings of anchor legs arranged symmetrically. The anchor legs attach to the bow and stern on the port and starboard to secure the vessel in place with a fixed heading.

Industry Highlights

  • Multiple deep-water mooring systems in Brazil and West Africa
  • Many of the spread moored systems are located in water depths greater than 1000m.
  • All of SOFEC’s deep-water spread moored systems are moored via a hybrid chain and polyester rope system.
  • SOFEC leads the industry in the supply and operation of systems moored with polyester rope.

Product Features

  • Uses traditional shipboard mooring equipment
  • Does not require turret structure, bearing, or swivels
  • Accepts all types of anchor leg configurations
  • Easily accommodates large numbers of risers and umbilicals
Tower Yoke

Tower Yoke

We are here for vessels operating in shallower waters, too.

Since the early 2000s, SOFEC has developed and supplied tower yoke mooring systems for vessels operating in shallow waters including the development of the world’s first disconnectable system for ships’ moorings installed in cyclonic storm prone regions.

Our highly specialized tower yoke systems are cost-effective, reliable solutions for permanently mooring FPSO and FSO vessels in shallow water. The yoke system links the vessel to a fixed tower outfitted with a mechanical turntable, which enables the vessel to weathervane freely around the tower. The yoke allows the vessel to pitch and roll, sway and yaw, and heave and surge without inducing unacceptable loads on the mooring links.

Industry Highlights

  • HYSY113: Second tower yoke mooring for FPSO, Bohai Bay, China
  • Design of world’s first disconnectable tower yoke mooring, Bay of Campeche, Mexico
  • China: SOFEC built the world’s largest tower yoke mooring system, which operates on an FPSO in Bohai Bay
  • Mexico: The world’s first disconnectable tower yoke mooring for shallow waters, Gulf of Mexico
  • Indonesia: The world’s first FSRU tower yoke mooring system for shallow waters
  • SOFEC leads the industry with the most operating tower yoke systems
  • Disconnectable Tower Yoke Mooring: The industry’s first Disconnectable Tower Yoke Mooring System is based on other SOFEC standard disconnectable systems.  This technology can be seen here.

Product Features

  • Economical and reliable for vessels in shallower waters
  • Tower yoke system links a vessel to a fixed tower
  • Flexibility to mount on the bow or the stern of a converted tanker or new-built vessel
  • Permits vessel to weathervane 360° thereby keeping environmental loads manageable
  • The yoke, connected to the turntable with specially designed joints, allows the vessel to move with all six degrees of freedom
  • A large, water-filled ballast tank on the yoke minimizes vessel excursions
  • Fluid travels via flexible hoses between the tower and the vessel
  • Ample deck space is available for auxiliary equipment
  • Easily accessible with walkways to access the tower

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