Unlock greater gas recovery with subsea compression
As a gas reservoir produces over time, pressures naturally decline, making it challenging to maintain plateau production rates and ultimately leaving significant reserves untapped. Traditional solutions such as infield well drilling to extend field life can be uneconomical because the well flowing pressure depletes quickly, while topside compression is limited by long tieback distances, maximized real estate and weight reserves, high hydrostatic pressure, topside processing backpressure, and liquid holdup in the pipeline.
However, subsea compression offers several benefits compared with topside alternatives:
• Prolongs field life by extending the production plateau
• Unlocks stranded assets using efficient wet-gas compression techniques
• Simplifies infrastructure by eliminating topside-related capex and opex
• Lowers emissions and energy consumption
• Improves safety because of the remote operation
Subsea compression offers more efficient gas extraction compared with topside compression solutions. The closer the compressor is to the subsea wellhead, the lower wellhead pressures are required, enabling you to unlock more reserves from your reservoir. As a result, field life is extended, increasing ultimate gas recovery, which improves overall project economics and delivers a faster return on your investment.
Subsea compression reduces your carbon footprint and is more energy efficient when compared with topside compression. Placing the compressor on the seabed rather than on the platform decreases both your CO ² emissions and energy consumption.
Take it from us: We installed the world’ s first subsea gas compression system in 2015, boosting the field’ s recovery rate from less than 60 % to 90 % today while significantly reducing the project’ s power usage and carbon emissions across the life of the field. With two subsea compression systems currently installed offshore Norway, providing high uptime, and another two projects set for delivery by 2025 to offshore Norway and the Asia-Pacific region, our subsea compression systems are field proven to provide robust and flexible solutions.