As deep-sea divers know, the deeper you go, the higher the
water pressure – and the lower the water temperature. Diving is only safe to a
depth of about 40 meters. At 150 meters at most, there is no more natural light
and conditions become even tougher.
One of the key attributes of MAN compressors is their
excellent reliability even in adverse conditions. Once the compressor has been
lowered to a depth of 300 meters, repairs and maintenance are virtually
impossible. From this moment on, the machine must work no matter what.
Åsgard subsea gas compression has taken us a step closer to making our vision of a subsea factory a reality
The two HOFIM™ compressors from Switzerland have been
running at full load in the Norwegian Åsgard Field with more than 99-percent
reliability and availability since 2015 – to the great delight of our customer
Equinor. A large part of the European gas supply is being efficiently
safeguarded at around 300 meters under the sea in this way. Even in 2015, the
natural pressure of the Åsgard Fields would have been too low to ensure stable
operations and satisfactory production. Thanks to the two MAN units, the
deposits can be exploited for another 15 years, equivalent to an additional 282
million barrels of oil.
Development of the subsea compressor system is regarded as one
of the most demanding technology projects in MAN’s history. And a successful
one too: “Åsgard subsea gas compression has taken us a step closer to making
our vision of a subsea factory a reality. MAN’s subsea gas compression
technology is a key factor in the successful operation of the installation,”
Roald Sirevaag, Chief Engineer Subsea Technology at Equinor, explains.
The patented technology also carried off several awards in
2017, with MAN receiving the maximum Technology Readiness Level 7 classification
according to API, as well as winning the UTF (Underwater Technology Foundation)
Subsea Award and the Platts Global Energy Award in the Commercial Application
of the Year category.
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