Nova Top Holes Completed

Source: 2/12/2021, Location: Europe

The top hole drilling campaign on the Nova field in the Norwegian North Sea is completed ahead of budget and schedule.

The campaign, carried out by the Seadrill-operated West Mira rig, consisted of drilling the top holes for the Nova production and water injection wells on two different templates.

Gunn Gadeholt, Spirit Energy’s Nova Asset Manager, said: “The top hole campaign has been delivered safely and two weeks ahead of schedule. That’s a fine achievement.”

Nova Field
High efficiency translates into a more sustainable operation – fewer days on the rig results in lower emissions. The reduction falls into a broader low-emission strategy, with the West Mira operating an energy-saving hybrid battery power plant, which increases the rig’s energy efficiency. The two supply vessels that support the rig are also equipped with hybrid batteries, which further reduces the environmental footprint.

The next step of the Nova campaign is to drill the three production wells and three water injection wells. Production start is planned for 2022.

Development Solution
Nova is being developed as a subsea tieback connecting two templates to the existing Gjoa platform which is operated by Neptune Energy. Gjoa will receive the production fluids and provide injection water and lift gas to the Nova field. Oil from Nova will be transported from Gjoa through the Troll Oil Pipeline II to Mongstad, associated gas will be exported via the Far North Liquids and Associated Gas System (FLAGS) pipeline to St Fergus in the UK, supplying the European energy market.

The use of existing infrastructure enables a cost-efficient extraction of the resources in the reservoir at 2,570 metres below sea level and extends the economic lifetime of the existing infrastructure.

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The well was drilled...

Gulf Oil and Gas
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