Drilling rig placed on the sea bed and equipped for drilling of oil and gas wells

This is an underwater drilling rig designed to sit on the seabed for drilling oil and gas wells. It stores drill pipes in magazines within its watertight, concentric cylindrical body, and a self-contained drilling module can be swapped out. The entire rig is anchored to the seafloor by hydraulic legs.

Why it matters: Since 2007, advancements in subsea engineering, robust materials, and autonomous underwater vehicle (AUV) technology could enhance the reliability and operational efficiency of such a complex seabed rig.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedLarge underwater structures, hydraulics, deep-sea.

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