Byford dolphin pics

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On November 5, , an accident at the Byford Dolphin oil rig, located in the North Sea off the coast of Norway, cost five people their lives in a particularly horrifying way. The incident shocked the public and led to more stringent safety regulations for those diving at inhospitable depths. The event now stands as a cautionary tale for deep-sea divers, who operate at high risk depths. The rig's owners employed four divers and two assistants called dive tenders to perform underwater maintenance via saturation diving, a very risky operation. An error between the divers' pressurized living space and the unpressurized dock caused an explosive decompression, killing all the divers and one of the tenders.

Byford dolphin pics

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The event now stands as a cautionary tale for deep-sea divers, who operate at high risk depths. At 3 atmospheres, a diver's body contains three times the typical amount of nitrogen, byford dolphin pics.

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Byford Dolphin was a semi-submersible , column-stabilised drilling rig operated by Dolphin Drilling , a Fred Olsen Energy subsidiary. It drilled seasonally for various companies in the British, Danish, and Norwegian sectors of the North Sea. It was registered in Hamilton, Bermuda. The rig was the site of several serious incidents, most notably an explosive decompression in that killed four divers and one dive tender, as well as badly injuring another dive tender. Built as Deep Sea Driller , it was the first-of-class in the highly successful Aker H-3 series, designed by Aker Group and completed at the Aker Verdal shipyard in Byford Dolphin had an overall length of It had a maximum drilling depth of 6, metres 20, ft , and it could operate at a water depth of metres 1, ft. Byford Dolphin was able to maneuver with its own engines to counter drift and ocean currents , but for long-distance relocation it had to be moved by specialized tugboats. On March 1, , the rig ran aground during transit from a block in the North Sea to Bergen.

Byford dolphin pics

On November 5, , an accident at the Byford Dolphin oil rig, located in the North Sea off the coast of Norway, cost five people their lives in a particularly horrifying way. The incident shocked the public and led to more stringent safety regulations for those diving at inhospitable depths. The event now stands as a cautionary tale for deep-sea divers, who operate at high risk depths.

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After the hatches are sealed and there are no leaks, the trunk is then slowly depressurized to 1 atm. Following an investigation, the Norwegian Petroleum Directorate concluded that the direct cause of the accident was that the locking device connecting the bell with the chamber system was unlatched while the system was still under pressure. The accident was caused not by a mechanical fault in the locking device, but by a failure in routines. From the chamber, the saturation divers enter the diving bell and take it to the seafloor where they can begin their work. Certified Spooky. Load more comments Chevron Pointing Down. The locking device was opened screwed off before the door into the chamber had been closed and pressure in the tunnel was reduced. Because divers working on a deep sea oil rig might frequently need to go down and come back up at high pressure, they use a method called saturation diving. This is a more modern photo of a sat diver working ] During saturation diving, your body stays under pressure for so long that all your bodily tissues become in equilibrium with the inert gases in the breathing mixture either helium or nitrogen. Saturation diving is uncommon due to the stress it causes on the body, and divers can only saturation dive for a few weeks at most.

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Because divers working on a deep sea oil rig might frequently need to go down and come back up at high pressure, they use a method called saturation diving. The door between the tunnel and the chamber system was then opened, and the divers began transferring equipment to the living quarters. As Bergersen and Hellevik were moving from the diving bell to the habitat, the diving bell was accidentally depressurized before Hellevik could fully close the habitat door. The accident was caused not by a mechanical fault in the locking device, but by a failure in routines. Otto Selnes, who participated in the internal inquiry, believes that the blame for this accident lay with unclear orders and a poor culture. Saturation diving is dangerous, and the crew must be experts to ensure everyone remains safe. These saturation divers leave the safety of dry land and enter pressurized living quarters, after which they are transferred down to an underwater habitat via a diving bell. Underwater tension is the only thing that gives me panic attacks. From the chamber, the saturation divers enter the diving bell and take it to the seafloor where they can begin their work. Options Menu.