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  • Wintershall DEA : Top hole drilling campaign on the Nova field completed
    édité le 10/02/2021 - Plus de news de "Wintershall DEA" - Voir la fiche entreprise de "Wintershall DEA"


Wintershall DEA : Top hole drilling campaign on the Nova field completed
The campaign, carried out by the Seadrill-operated West Mira rig, involved drilling some 3,400 metres of top holes for the six Nova production and water injection wells on two different templates.

“We continuously try to improve our drilling operations to be safer, more efficient and more sustainable. Working together as ‘One Team’ with all involved, we were able to deliver the top hole campaign safely and two weeks ahead of schedule”, said Nils Petter Norheim, Wintershall Dea Norge Head of Drilling & Wells.

Five of the top holes were drilled in one batch with repetitive operations. After each operation the team evaluated the performance, capturing best practices and lessons learned to optimise the equipment and drill the next section even more efficiently. This approach helped to continuously improve the drilling performance.

High efficiency also translated into a more sustainable operation, with fewer days on the rig resulting 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 of the campaign.

“With all the top holes drilled, we have achieved another Nova milestone ahead of plan. We will continue drilling and the next step is to safely deliver the three production wells and three water injection wells before production start which is planned for 2022.” said André Hesse, Nova Project Director at Wintershall Dea.

Nova drilling will last throughout most of 2021.

About Nova

Nova is located about 120 kilometres northwest of Bergen and approximately 17 kilometres southwest of the Gjøa platform in the Norwegian North Sea. Wintershall Dea has a 28% interest in the Gjøa license.

Partnership: Wintershall Dea (operator 45%), Spirit Energy Norge AS (20%), Edison Norge AS (15%), Sval Energi AS (10%) and ONE-Dyas Norge AS (10%).

Water depth: 370 metres

Development solution: Nova is being developed as a subsea tieback connecting two templates to the existing Gjøa platform which is operated by Neptune Energy. Gjøa will receive the production fluids and provide injection water and lift gas to the Nova field. Oil from Nova will be transported from Gjøa 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.

About Wintershall Dea

Wintershall Dea is Europe’s leading independent natural gas and oil company with more than 120 years of experience as an operator and project partner along the entire E&P value chain. The company with German roots and headquarters in Kassel and Hamburg explores for and produces gas and oil in 13 countries worldwide in an efficient and responsible manner. With activities in Europe, Russia, Latin America and the MENA region (Middle East & North Africa), Wintershall Dea has a global upstream portfolio and, with its participation in natural gas transport, is also active in the midstream business.

Wintershall Dea was formed from the merger of Wintershall Holding GmbH and DEA Deutsche Erdoel AG, in 2019. Today, the company employs around 2,800 people worldwide from over 60 nations.

About Seadrill

Seadrill (OSE:SDRL, OTCQX:SDRLF) is a leading offshore deepwater drilling company, aiming to be our customers' most important partner in making oil and gas available in a safe and cost-effective manner.

The company operates a versatile fleet of 69 units that comprises drillships, jack-up rigs, semi-submersible rigs and tender rigs for operations in shallow to ultra-deepwater areas in harsh and benign environments.


Origine : Communiqué Wintershall DEA

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