Mobile Offshore Drilling Units
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Deepsea Atlantic

Deepsea Atlantic was delivered in February 2009. The sixth generation deep water and harsh environment semisubmersible is now on a long term contract with StatoilHydro, Norway.

A second unit, "Deepsea Stavanger" is under construction at the Daewoo Shipbuilding & Marine Industries (DSME) in South Korea with delivery in 2010.

Deepsea Atlantic & Deepsea Stavanger are designed for operations in harsh environments and water depths of up to 3,000 meters. The loading capacitiy of 7,500 mt in all operating conditions ensures efficiency. Full winterization may be provided for improved working conditions in artic environment.

Green Rig
”Deepsea Atlantic” is designed for environmental sensitive areas, and the utmost focus has been put on zero discharge, low emissions and electrical solutions to reduce onboard oil volumes and associated pollution risks. Separate drain systems are installed for the machinery area, drilling area and all outside clean deck areas. No drain water is discharged without passing a cleaning system which ensures acceptable oil content.

Installations and arrangements to obtain the green rig:

  • Enclosed derrick which prevents mud spill to sea
  • All drain lines routed to central cleaning unit by use of several tanks and pumps
  • Discharge from mud pits by pumping, no gravity discharge.
  • Waste management system implemented
  • Low NOX emissions, clean design engines
  • Closed loop BOP control system
  • Electrical drawworks with power regeneration



Contract status
Specifications