S2M, a subsidiary of global industrial solutions provider SKF, has signed a two-year bearing supply deal with large diesel engine manufacturer MAN Diesel & Turbo, global oil services company Aker Solutions Norway and international energy company Statoil.
S2M will equip subsea compression trains with SKF magnetic bearings and their associated electronics in a first-of-its-kind project for the Åsgard gasfield in the Norwegian Sea.
The Åsgard subsea compression project will involve placing two compressors on the seabed to maintain discharge pressure in the pipeline and compensate for the falling suction pressure as the reservoir is depleted in the next few years, thereby boosting the gas flow.
MAN Diesel & Turbo will supply four hermetically sealed compressor units, of which two will be on the seabed, one retained onshore in reserve and another used for testing.
SKF magnetic bearings were selected for their capability to operate in these severe conditions with very high reliability, including remote monitoring. They will maintain the motor compressor shaft systems in position, and are oil free, frictionless and virtually maintenance free.
These features are vital in compressors installed at a depth of between 200 m and 300 m, rendering them too deep for divers and making them accessible only by remote- operated vehicles.