PROJECT - SUBSEA : DRILLING SERVICE PROVIDER

NuStar Technologies supplied sets of customized pack-off and casing hanger for a client in China. The scope of works included design, manufacture, function testing and providing subsea wellhead system.


Cork System


FEATURES

  • • 10,000 psi working pressure
  • • Adaptable pack-off carrier (to adapt to client supplied torque nut)
  • • Anti-Rotation Key Slot
  • • Sufficient Flow-by slots
  • • External Metal End Cap Seal
  • • Internal Metal lip seal
Cork System

Casing Hanger


FEATURES

  • • 10,000 psi working pressure
  • • Pack-off Lockdown Thread, Right Hand
  • • Internal Running Thread, Left Hand
  • • Sufficient Flow-by area for circulation
  • • Wellhead Lockdown Ring (Optional)
  • • Hanger Landing Shoulder into Wellhead housing (for primary hanger)
  • • Premium casing thread

Casing Hanger

Subsea Wellhead
NuStar has designed and built a subsea wellhead system for the customer in China for their Offshore South China Sea project. Quality assurance is ensured through stringent test conforming industry standard, performance and safety.


FEATURES

  • • Rated to 15,000psi working pressure
  • • Water depth of 10,000 ft (3000m)
  • • High Pressure Housing has means to support and seal three hangers
  • • Up to 5.25M ft-lbs bending capacity
  • • Metal-Metal sealing pack-off system
  • • Single annulus seal assembly design to fit all casing hangers
  • • Range of accessories and tool options