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Subsea Separation

Subsea Separation

Key component in the production system​

Production systems are typically complex multiphase systems where oil, gas, water or particles like sand may be combined. Appropriate handling and management of this multiphase flow stream is often a requirement that can be achieved through subsea separation. Subsea separation is a key component in the production system that provides conditioning of the flow stream for further boosting, transportation or re-injection of specific phases, while reducing the risk of flow assurance issues during production.

​Avoid flow assurance issues by having better subsea conditions

  • BHGE's approach to subsea separation is to maintain a simple and robust system utilizing a combination of well-proven gravity separation with compact solutions for shallow to deep water applications. BHGE brings expertise, experience and technology together with an open-interface approach to develop the optimal solution for any particular field requirement. We have considerable field-proven experience in this area that includes Statoil’s Troll C, the world’s first subsea separation and re-injection system.

    Subsea separation can de-bottleneck topside production facilities by the liberation of storage and transportation capacity with the consequent possibility to increase production. This significantly reduces capital expenses as well as operating costs related to the topside facilities. Subsea separation offers better conditions to avoid flow assurance issues like emulsions and hydrates formation.

    Our subsea separation system can have multiple advantages, such as:

    • Robust systems that combine conventional gravity based and compact solutions
    • Closer to production wells, enables more efficient handling of production fluids at higher pressures
    • Reduces substantially the need for topside facilities
    • Significant reduction of CAPEX and OPEX
    • Building blocks approach for increased separation efficiency

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