Allseas vessels complete work for two Aker BP development projects in the North Sea
The Pioneering Spirit vessel completed heavy-lift removals for the Valhall project, and the Solitaire vessel finished pipelaying work for the Yggdrasil development.
The Solitaire vessel executed the full offshore scope solo for Equinor and Aker BP’s Yggdrasil development.
Courtesy Lars Melkevik / Aker Solutions
The Pioneering Spirit vessel has safely completed the final heavy lifts of Aker BP’s original Valhall Field.
Allseas’ Pioneering Spirit vessel completed the final heavy-lift removals in late June for Aker BP for the original Valhall Field center in the southern Norwegian sector of the North Sea.
Allseas’ team employed a specially designed "fishing rod" to hook conductor sections 28 m underwater using repurposed pipelay strakes; the goal was to achieve the single-lift execution in rough weather conditions.
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Farther north, the company also just finished pipelay duties for the Aker BP-operated Yggdrasil development in the Norwegian North Sea, with the Solitaire vessel installing 122 km of offshore oil and gas export pipelines.
According to Allseas, the vessel performed the full scope on its own, from touchdown monitoring to tight "snake curves," installing an in-line tee at the edge of the vessel’s tensioner geometric limits and laying more than 86,000 mt of steel and concrete on the seabed.
The Oceanic vessel provided support in the form of pipe supply logistics from shore, and Lorelay will perform as-laid survey scopes later this summer.
Jeremy Beckman has been Editor Europe, Offshore since 1992. Prior to joining Offshore he was a freelance journalist for eight years, working for a variety of electronics, computing and scientific journals in the UK. He regularly writes news columns on trends and events both in the NW Europe offshore region and globally. He also writes features on developments and technology in exploration and production.
