Page 45: of Offshore Engineer Magazine (Sep/Oct 2025)

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MODEC SHELL ty in Bergen, Norway, is scheduled for installation in 2026. stalled more than 900 meters below sea level in Norwe-

Eld Energy’s solution offers high-effciency power gener- gian Sea, represent the deepest subsea compression sys- ation with low emissions, aligning with the maritime and tem ever deployed.

energy sectors' drive toward more sustainable operations. Gas is transmitted 120 kilometres to Shell’s Nyhamna

By integrating advanced SOFC systems into offshore in- processing plant onshore, also marking the longest subsea frastructure, the companies aim to reduce environmental ‘step-out’ in history.

impact while maintaining operational reliability. The sec- SLB OneSubsea’s award-winning subsea multiphase ond phase pilot test represents the frst real-world imple- compressor is said to be the world’s frst and only true sub- mentation of SOFC technology on an FPSO. sea wet-gas compressor.

“Although we foresee technical hurdles to overcome in Conventional compressors require perfectly dry gas this R&D journey, we are committed to pioneering into it to operate safely and effciently. The subsea compression with a strong will to provide solutions that deliver stable system from OneSubsea, on the other hand, can operate energy with low GHG emissions,” said Koichi Matsumiya, with the unprocessed multiphase well stream, including

Chief T echnical Offcer of MODEC condensates, produced water, and mono ethylene glycol (MEG), with liquid fractions ranging from 0% to 100%.

Pushing the Limits: Subsea Compression Reach-

It also tolerates sand and solids.

es New Depths at Ofshore Field

The Ormen Lange system uses two compression sta-

Two SLB OneSubsea subsea compressor stations have tions, each containing two compression modules. Each been brought online at Shell’s Ormen Lange feld, the sec- compressor can provide up to 50-bar differential pressure, ond largest gas feld in Norway, setting the record for the confgured in parallel for a large volumetric fow capacity.

deepest installation of such systems ever. The 32-MW subsea multiphase compression system

The SLB OneSubsea subsea compressor stations, in- will use onshore variable speed drives (VSDs) located 120

SEPTEMBER/OCTOBER 2025 OFFSHORE ENGINEER 45