that requires a whole different type of decompression, and it was a failure in that system that led to the violent deaths of the Byford Dolphin divers.
Byford Dolphin was a semi-submersible offshore oil rig built by Aker Engineering of Oslo in 1974. Weighing 3000 tons and manned by a crew of 100, it was capable of drilling in waters up to 460 meters in depth. To allow construction and maintenance of the wellhead at these depths, the r...