Nova manifolds and spools safely installed ahead of schedule
Wednesday 6 May 2020
The two manifolds for Wintershall Dea’s Nova project in Norway have been safely installed in the templates on the seabed, marking another key milestone in the delivery of the subsea development.
Subsea 7 safely installed the production and water injection manifolds as well as the pipeline spools at 370 meters water depth.
“With the installation of the manifolds and spools we have successfully begun the subsea campaign for 2020. We focused heavily, with our key suppliers, on the planning phase to ensure a safe installation. So delivering the milestone without incident and ahead of schedule, that is particularly gratifying,” said Dennis L. Dickhausen, Wintershall Dea Nova Facilities Vice President.
Installation of the manifolds and spools is a key milestone in delivery of the Wintershall Dea operated project, which will deliver hydrocarbons via two new subsea templates to the nearby Gjøa platform in the Norwegian North Sea.
Subsea 7’s vessel Seven Arctic transported the manifolds and spools from the supply base in Florø to the Nova field, 120 kilometers northwest of Bergen, before installing them below the ocean surface.
The vessel Siem Spearfish then connected the three production spools, which had been installed using a single lift, and the injector spool, to the manifolds and pipelines.
Bård Owe Bakken, Nova Subsea Manager, said: “Our main subsea contractors Aker Solutions and Subsea 7 did a great job in the planning, fabrication and installation of the Nova manifolds and spools. Despite the challenging environment, Subsea 7 managed through careful planning and efficient delivery to finalise installation even earlier than scheduled.” Installation of the water injection manifold and spool was originally planned for June.