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Coordinated subsea infrastructure deployment on the Norwegian continental shelf
Equinor establishes a standardized procurement framework with industrial suppliers to accelerate marginal field development through unified technical solutions.
www.equinor.com
Equinor and an industrial supplier consortium have initiated a coordinated subsea development program encompassing multiple offshore extraction projects on the Norwegian continental shelf. The cooperation implements standardized technical systems and centralized equipment procurement to reduce execution timelines and project installation costs across multiple subsea fields.
Industrial Challenges and Partnership Structure
Operators face the technical challenge of making smaller offshore discoveries commercially viable under traditional, asset-specific engineering cycles. To address this, operator Equinor Energy AS has partnered with specialized engineering and manufacturing firms, including TechnipFMC, OneSubsea, Ocean Installer, and NOV. This collaborative approach aggregates independent subsea developments into a synchronized procurement framework, ensuring manufacturing predictability and digital infrastructure integration across the supply chain.
Technical Solution and Shared Responsibilities
The technical deployment relies on standardized subsea production systems and modular components to enable uniform physical and operational integration.
Responsibilities are divided by technical specialization:
- TechnipFMC delivers subsea production systems for the Brime, Omega Sor, and Tyrihans Nord fields, alongside rigid pipeline installation at the Troll field using linepipe supplied by Tenaris.
- OneSubsea manufactures the subsea production system for the TWIN project and supplies the umbilical network across all designated sites.
- Ocean Installer manages marine operations, executing the physical installation and interconnection of subsea facilities, control cables, and flexible pipelines.
- NOV supplies the flexible pipelines required for the Omega Sor, Tyrihans Nord, and Brime fields.
Deployment and Infrastructure Integration
The implementation strategy utilizes standardized long-lead equipment that remains cross-compatible between fields to mitigate engineering risks. The initial operational phase focuses on the TWIN (Troll West Increased gas recovery North) project, which comprises two new wells built on a new seabed template. This system integrates directly with existing subsea infrastructure, extending control cables and monoethylene glycol lines back to the Troll A platform.
Subsequent phases involve tying back the Brime field to Gullfaks C via Visund Sor, routing Omega Sor through Snorre A using a production satellite structure, and connecting Tyrihans Nord to the existing production pipeline linked to the Kristin platform.
Operational Applications and Expected Impact
The primary application focuses on maximizing resource recovery from marginal gas and oil discoveries through brownfield tie-backs. By utilizing uniform templates and shared infrastructure configurations, the partnership stabilizes the supply chain against long component lead times. Strategically, this engineering framework aims to significantly reduce execution time and project expenditure compared to bespoke design methods, rendering an estimated 130 to 220 million barrels of oil equivalent economically viable for future production.
Edited by Evgeny Churilov, Induportals Media - Adapted by AI.
www.equinor.com
The implementation strategy utilizes standardized long-lead equipment that remains cross-compatible between fields to mitigate engineering risks. The initial operational phase focuses on the TWIN (Troll West Increased gas recovery North) project, which comprises two new wells built on a new seabed template. This system integrates directly with existing subsea infrastructure, extending control cables and monoethylene glycol lines back to the Troll A platform.
Subsequent phases involve tying back the Brime field to Gullfaks C via Visund Sor, routing Omega Sor through Snorre A using a production satellite structure, and connecting Tyrihans Nord to the existing production pipeline linked to the Kristin platform.
Operational Applications and Expected Impact
The primary application focuses on maximizing resource recovery from marginal gas and oil discoveries through brownfield tie-backs. By utilizing uniform templates and shared infrastructure configurations, the partnership stabilizes the supply chain against long component lead times. Strategically, this engineering framework aims to significantly reduce execution time and project expenditure compared to bespoke design methods, rendering an estimated 130 to 220 million barrels of oil equivalent economically viable for future production.
Edited by Evgeny Churilov, Induportals Media - Adapted by AI.
www.equinor.com
