SeaStar TLPs for Ultra-Deepwater

A new development from Atlantia extends the SeaStar TLPs depth capability to 10,000 ft, making it the most economical structure for dry-tree production from ultra-deepwater fields.

The new development is remarkably simple and innovative: water-column oscillators are added to the SeaStar hull. These completely passive devices effectively eliminate wave-induced resonant motions and thereby reduce tension and stresses in the tubular tendons. Since tendon walls can now be made thinner, tendon cost is dramatically lowered and is no longer a limiting factor in deeper waters.

• Field Development Scenarios
  Dry trees, wet trees, FPSOs, and more
• Anatomy of a SeaStar TLP
  A look at an installed SeaStar TLP
• Optimum Motion
  No heave, pitch or roll
• Hull Scalability
  Match deck loads up to 40,000 tons
• Hull Modularity
  Streamlined, economical fabrication
• Hull Efficiency
  Less steel, lower cost
• SeaStar TLP Tendons
  The tension in tension-leg platform
• SeaStar TLPs for Ultra-Deepwater
  Motion damping extends capability to 10,000 ft
• Installation without a Derrick Barge
  No costly heavy lift offshore
• Project Summaries
  Morpeth, Allegheny, Typhoon, Matterhorn