Aker Delivers First Subsea Gas Compression Facility

Aker Solutions has delivered a steel frame for a subsea gas compression facility for installation at the Asgard field in the Norwegian sector of the North Sea. The Asgard subsea gas compression facility is set to come online in 2015 after two 11.5 megawatt compressors are installed.

The subsea gas compression, reported by Aker as the world’s first, will enable the recovery of an additional 280 million barrels of oil equivalent at the mature field.

"The Asgard project is a game changer for the entire industry," said Per Harald Kongelf, regional president for Aker Solutions in Norway, in a press release. "The technology has the potential to change offshore gas field developments worldwide and I am very pleased that we have delivered this part of the project on schedule."

With the help of a gas compressor, gas-producing fields are able to maintain reservoir pressure which extends the life of the field and helps with recovery efforts. Previously, operators would install such compressors on platforms over sea level but by placing the compressors on the seabed and near the wellheads, recovery rates are improved while reducing overall capital and operating costs, Aker stated.

This new subsea gas compression facility will boost declining gas pressures at the Midgard and Mikkel satellite fields in the North Sea.

Located 124 miles (200 kilometers) offshore Norway in the Halten Bank of the Norwegian Sea, the Asgard field is comprised of three geographical segments: the Midgard, Smorbukk and Smorbukk South discoveries. A major development in the Haltenbanken, the Asgard facilities serve as a production hub for the area.

With water depths ranging from 787 to 984 feet (240 to 300 meters), the three finds were unitized into one production license in 1995, resulting in combined estimated reserves of 735 MMboe and 8.2 Tcf (232 Bcm) of gas.


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