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STP - Submerged Turret Production

Brief Presentation of STP
The STP system is a unique, innovative and flexible turret mooring system for floating production and offtake vessels (FPSO) making it suitable for a wide range of applications.

As a further development of the STL system, The STL turret and mooring technology has been combined with a high pressure multi-path swivel to create a complete mooring, turret and swivel package for offshore floating production based on the use of ships or ships-like structures.

The STP system comprises the same type mooring system and the same principles for design of the STP Buoy and turret bearings as the conventional STL system.

The STP system consists of:

  • STP Buoy with integrated turret
  • Mooring system similar to the STL system
  • STP Ship system for handling and locking of STP Buoy
  • Multi-path swivel system
  • Basic features of the STP system are:

  • Free passive weather waning of the FPSO (use of thrusters not required)
  • Flexibility with respect to capacity and number of risers and umbilicals
  • Simple vessel conversion with minimum modification and structural impact
  • Short conversion time, low conversion costs
  • Standardized STL/STP Buoy geometry allowing any STL/STP vessel to connect to any buoy
  • Passive rotation of multi-path swivel, i.e. no active drive mechanism is required
  • Redundant over pressurized seal barrier fluid system with remote diagnostics for seal monitoring
  • High level of safety
  • The STP technology is suitable for a wide range of field developments and water depths such as:

  • STP for permanent weather independent operation
  • STP for quick disconnect
  • STP for deep water
  • STP for shallow water
  • STP in ice covered sea
  • STP Characteristics


     
     
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    STL - Submerged Turret Loading
    STP - Submerged Turret Production
    SAL/SAP - Single Anchor Loading & Production
    SYS - SAL Yoke System
    ETP - External Turret Production
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