On 17 April 2002, a 44-year-old Norwegian worker on the rig was struck on the head and killed in an industrial accident. The accident resulted in Byford Dolphin losing an exploration contract with Statoil, which expressed concerns with the rig's operating procedures. .
Byford Dolphin was a , column-stabilised operated by , a subsidiary of . Byford Dolphin was registered in , and drilled seasonally for various. .
Byford Dolphin accident of 1983On Saturday, 5 November 1983, at 4:00 a.m., while drilling in the in the Norwegian sector of the , four divers were in a system on the rig's deck that was connected by a trunk. .
• Gjerde, Kristin Øye; Ryggvik, Helge (2009). [North Sea divers] (in Norwegian). Stavanger: Wigestrand Forlag.. .
Built as Deep Sea Driller, Byford Dolphin was the first-of-class in the highly successful H-3 series, designed by and completed at the shipyard in 1974.Byford Dolphin had an overall length of 108.2 metres (355. .
• • – Professional diving in support of the oil and gas industry• – Diving mode and decompression technique•
[pdf] The history of Saipem is deeply connected to 's management era of during the years of the . In the early 1950s Mattei had reorganized the Italian oil industry through a complex system of outright acquisitions and government investments, in order to guarantee Italy's self-reliance in energy.
[pdf] 
Mobile offshore Drilling Units (MODU) This type of rig is commonly used in connection with oil and/or natural gas drilling. There are more jackup rigs in the worldwide offshore rig fleet than other type of mobile offshore drilling rig. Other types of offshore rigs include semi-submersibles (which float on pontoon-like structures) and drillships, which are ship-shaped vessels with rigs mounted in t. OverviewA jackup rig or a self-elevating unit is a type of mobile platform that consists of a buoyant fitted with a number of movable legs, capable of raising its hull over the surface of the sea. The buoyant hull enables tra. .
Jackup rigs are so named because they are self-elevating with three, four, six and even eight movable legs that can be extended (“jacked”) above or below the hull. Jackups are towed or moved under self propulsion to the site. .
An early design was the DeLong platform, designed by Leon B. DeLong. In 1949 he started his own company, DeLong Engineering & Construction Company. In 1950 he constructed the DeLong Rig No. 1 for.
[pdf] 