![]() Byford Dolphin specificationsĤ9-metre (160 ft) Shaffer top compensator Byford Dolphin is able to maneuver with its own engines (to counter drift and ocean currents), but for long-distance relocation, it must be moved by specialist tugboats. As a drilling rig, Byford Dolphin is equipped with advanced drilling equipment and has to meet strict levels of certification under Norwegian law. She has a maximum drilling depth of 6,100 metres (20,000 ft), and she could operate at a water depth of 460 metres (1,500 ft). īyford Dolphin has a length of 108.2 metres (355 ft), breadth of 67.4 metres (221 ft) and depth of 36.6 metres (120 ft). In 1974–1978, she was named Deep Sea Driller. īyford Dolphin drilling rig is an Aker H-3 design which was built by Aker Group at the Aker Verdal shipyard in 1974. The rig has suffered some serious accidents, most notably an explosive decompression in 1983 that killed five workers and badly injured one. Olsen Energy subsidiary, and currently contracted by BP for drilling in the United Kingdom section of the North Sea. ![]() Olsen Energy)ĭNV class: 1A1 Column-stabilised Drilling Unit UKVSīyford Dolphin is a semi-submersible, column-stabilised drilling rig operated by Dolphin Drilling, a Fred. Byford Dolphin in dry dock at Invergordon (Scotland, UK) in 2008īyford Dolphin Pte.
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