Deepwater Composite Pressure Vessels

• Large diameter pressure vessels for use in deepwater down to
3,000m
   – Buoyant at maximum depth
   – Ballastable and deballastable for buoyancy control
   – Applications for subsea separators, variable buoyancy for light
   construction at depth or as installation aide

• Many advances achieved including:
   – High quality thick part manufacture – cylinders & domes
   – Automated NDE techniques for thick composites
   – Calibrated design & analysis tools for composites
• 4 year development programme, circa $4M total expenditure