Floating Hosts

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Types of Floating Systems

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Emerging Concepts

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Alternatives for Deepwater

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Types of Floating Platforms

FPU - NO STORAGE

  • SPAR
  • TLP - Tension Leg Platform
  • SEMI - Production Semisubmersible
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FPU - WITH STORAGE

  • FPSO - Floating Production Storage Offloading
  • FSO - Floating Storage & Offloading

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Dry or Wet?

  • Dry trees are possible only where there is limited motion
  • Dry trees means easy access to trees - allows service to underwater lines (conduct pigging for example) if clogged
  • FPSOs move too much to allow dry trees - must use wet trees
  • Spars and TLPs are stable enough to use dry trees

Application Ranges

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History Data of Floaters

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Motions and Loads

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Motion Characteristics

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Selection of Alternatives

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Spar

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  • No storage
  • Small vertical motion
  • Dry trees
  • Several types
    • Classical
    • Truss
    • Cell




Truss Spar

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Mini TLP & Full Size TLP

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Production Semi

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FPSO

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Installation & Marine Operation

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Tahiti Spar

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FPSO Mooring Types

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  • Spread moored
  • Turret Moored
    • Yoke to fixed structure
    • External to vessel
    • Internal to vessel
  • Dynamically positioned

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Hull/Topsides Integration

  • FPSO - Shipyard Integration
  • Semi - Shipyard or Quayside Integration
  • TLP - Offshore Integration
  • Spar - Offshore Integration
  • Quayside integration requires lift capability, allows construction of topsides at convenient location
  • Offshore integration requires costly heavy lift vessel

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