Sleipner gas field

Under the umbrella term Sleipner field, the gas and condensate fields Sleipner Sleipner East and West as well as their satellite extensions Loke, Grungne and Alfa Nord are summarized in the Norwegian sector of the North Sea. The gas field was named after Sleipnir, the eight-legged horse of Odin.

The fields are located about 260 km west of the Norwegian coast and operated by Statoil.

CO2 storage

The produced gas has a CO2 content, which is higher than the requirements of export partners. Therefore, it is separated on a part of the Sleipner platform complex, the CO2, but not released into the atmosphere, but as part of a 10 million euro EU project compressed into layers of rock 800 meters below the sea.

The gaseous CO2 is compressed and compacted in a specially appointed for the purpose bore. When the reservoir rock is a sandstone of the Utsira formation.

Since 1996, about one million tonnes of CO2 stored annually.

Investigation in 2013 discovered faults in the rock, so that a future leaks from the reservoir is very likely.

Surveillance / monitoring

Every two years, seismic data are collected (4D seismic ). By comparison with the previous measurement of the propagation of the CO2 in a three-dimensional representation can be verified.