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Putting on the Pressure Under Water

Source: www.gulfoilandgas.com 11/9/2010, Location: Europe

Statoil and its partners on Asgard have opted for subsea gas compression to help recover the big remaining reserves in this Norwegian Sea field. Similar projects elsewhere are in the pipeline.

Statoil and its partners on Asgard have opted for subsea gas compression to help recover the big remaining reserves in this Norwegian Sea field. Similar projects elsewhere are in the pipeline.

Subsea gas compression has also been assessed on Gullfaks and for the Ormen Lange field together with operator Shell.

Leap

“Compressing gas on subsea installations represents a considerable technological leap for the industry,” says Margareth Ovrum, executive vice president for Technology & New Energy.

“With this technology in place, the recovery factor and producing life can be substantially increased for a number of gas fields.”

Preparations for seabed compression have come furthest on Asgard, where the Midgard and Mikkel gas deposits are tied back to the Asgard B platform.

These two reservoirs have been developed with seabed installations, and their wellstreams are piped to the gas production floater about 40-50 kilometres away.

Analyses show that pressure in Midgard and Mikkel will become too low to sustain their ability to produce to the B platform towards the end of 2014.

“Installing compressors will sustain the gas flow and ensure a long producing life for the platform,” explains Stale Tungesvik, head of reserves and business development in Statoil.

“This makes it possible to recover large volumes – we’re adding 28 billion cubic metres of gas and 14 million barrels of condensate after a possible investment decision.”

The latter is due to be reached in the first quarter of 2011.

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Related Categories: Compressors, Air  Compressors, Cylinders  Compressors, Gas  Compressors, Parts  General 

Related Articles: Compressors, Air  Compressors, Cylinders  Compressors, Gas  Compressors, Parts  General 


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