GUILDFORD, UK – Zennor Petroleum’s Finlaggan field development in the UK central North Sea should come onstream late next year.
This year’s program for the subsea tieback to the Britannia gas-condensate platform involved three separate vessel mobilizations over the summer.
Finlaggan’s 145-metric ton (160-ton) manifold was installed adjacent to the F1 and F2 production wells (F1 and F2). The structure, which will enable metering of the wellstream, is also designed with tie-in points for further wells and to other fields.
Other highlights of the campaign included installation on the seafloor of the 15 pipeline spools for both ends of the pipeline; and de-watering of the 20-km (12.4-mi) pipe-in-pipe flowline from Finlaggan to the subsea isolation valve skid within the Britannia 500-m (1,640-ft) zone.
By end of the year the project should be over 90% complete, with start-up following next summer’s rescheduled shutdown of the Forties Pipeline System in the North Sea.
Zennor added that its lenders have agreed to upsize the existing senior secured term loan facility for the project to £185 million ($241 million), extending it by one year because of delays to the Finlaggan development schedule caused by COVID-19 restrictions.