|European Oil, Gas, and Renewable Energy Solutions > News
(News on Homepage)
> Upstream News
> Midstream News
> Downstream News
> Ocean Energy / Offshore Wind / Renewables
> General Interest News
> Equipment News
> Market Infos / Forecasts
|First subsea wet gas compression system © Statoil
First subsea wet gas compressor
Last month Statoil started up the world’s first subsea gas compression system at its Åsgard complex in the Norwegian Sea. Both technologies serve to maintain production when reservoir pressure drops after a certain time.
According to Statoil, subsea compression has a stronger impact than conventional platform-based compression, and avoids the extra weight and space that would be taken up by fitting a compression module on the platform.
Also, a wet gas compressor does not require gas and liquid separation before compression, allowing use of smaller modules and a simpler structure on the seabed. The system comprises a 420-metric ton (463-ton) protective structure, a compressor station with two 5-MW compressors with a total weight of 650 metric tons (716 tons), and all equipment needed for power supply and system control on the Gullfaks C platform.
“The recovery rate from the Gullfaks South Brent reservoir may be increased from 62% to 74% by applying this solution in combination with other measures,” said Kjetil Hove, senior vice president for the operations west cluster.
Statoil may also look to tie in other subsea
wells to the wet gas compressor via existing pipelines – the station has
been prepared for this eventuality.