Bottle-type submersible rig Definition


Bottle-type submersible rig:

A mobile submersible drilling structure constructed of several steel cylinders, or bottles.

When the bottles are flooded, the rig submerges and rests on bottom; when water is removed from the bottles, the rig floats.

The latest designs of this type of rig drill in water depths up to 100 feet (30.5 meters).

See submersible drilling rig.