Southern Viking Graben

Sharper subsurface insight with OBN data

Building on the success of its ocean bottom node (OBN) programs in the Southern Viking Graben, Viridien has commenced a dense multi-client OBN survey in the Frigg area, spanning the Norwegian Continental Shelf (NCS) and the UK Continental Shelf (UKCS). The Frigg OBN survey will cover approximately 645 km² under receivers (AUR), with final data scheduled for delivery in Q3 2027.

This new acquisition continues the strong momentum established in 2025 by the Utsira North OBN survey and the ongoing processing of the Greater Alvheim dataset. Final Utsira North data will be available for industry licensing in Q3 2026, further strengthening Viridien’s portfolio of high-resolution subsurface data across this strategically important region.

These recent initiatives build on Viridien’s extensive OBN footprint in the Southern Viking Graben, including the Heimdal Terrace and Sleipner OBN surveys acquired in collaboration with TGS, as well as the recent reimaging of the Utsira OBN survey conducted with TGS and Aquila Holdings ASA (via its subsidiary Axxis Multi-Client AS). Together, these three surveys have been seamlessly integrated to form the OMEGA Merge, currently the largest contiguous 3D OBN dataset on the NCS.

The OMEGA Merge, now exceeding 4,000 km², provides a unified, high-fidelity dataset that supports advanced imaging, improved reservoir understanding, and future exploration and development opportunities. Viridien continues to lead the expansion of dense OBN coverage in the region, delivering data solutions designed to reduce subsurface uncertainty and maximize exploration value.