Viridien Launches Dense Multi-Client Ocean Bottom Node Survey Across the Frigg Area of the North Sea

Viridien has commenced a dense multi-client ocean bottom node survey covering 645 square kilometres in the Frigg area of the Central North Sea, straddling the UK and Norwegian sectors. The new survey, supported by industry funding, will apply Viridien's proprietary OBN processing and imaging technologies including Time-Lag Full-Waveform Inversion, with final processed deliverables scheduled for the third quarter of 2027.

 

Strategic Significance of the Frigg Survey

 

The Frigg survey expands Viridien's growing multi-client OBN library in the North Sea and reinforces the company's positioning as one of the leading providers of advanced offshore seismic imaging in the region. The Central North Sea remains one of the most actively explored offshore basins in Europe, with a continued pipeline of infrastructure-led exploration and tieback opportunities supporting demand for high-resolution subsurface data. The cross-border location of the survey, straddling UK and Norwegian waters, is commercially important because it provides a coherent dataset across two jurisdictions that have historically been surveyed separately, simplifying interpretation and supporting integrated exploration and development planning across the Frigg complex.

 

Technical Profile and Imaging Capability

 

Ocean bottom node technology provides higher-quality seismic data than conventional streamer-based surveys, particularly in areas with complex geology, infrastructure congestion, or shallow water conditions. Viridien's deployment of OBN technology in the Frigg area, combined with its proprietary Time-Lag Full-Waveform Inversion processing, is positioned to deliver enhanced resolution and structural definition across the region's complex geology and reservoirs. Improved subsurface imaging directly affects exploration and development outcomes by supporting more accurate identification of prospective structures, better characterisation of existing reservoirs, and reduced uncertainty in well placement decisions. For operators active in the Frigg area, high-quality OBN data can meaningfully improve the economics of both new exploration activity and ongoing field development.

 

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Multi-Client Funding Model and Delivery Timeline

 

The survey is being conducted under Viridien's multi-client funding model, in which industry partners contribute funding in exchange for access to the resulting dataset. The model allows large-scale, high-quality surveys to be commissioned in regions where individual operators would not commit to a proprietary acquisition campaign. The September 2027 delivery timeline for final processed data is consistent with the typical duration of complex OBN processing workflows, which require significant time to apply advanced imaging algorithms to dense node datasets. For contributing partners, the timeline provides a clear horizon against which to plan internal exploration and development decisions.

 

Strategic Framing From Viridien

 

Dechun Lin, head of Earth Data at Viridien, has framed the new survey as a demonstration of the company's long-term commitment to the North Sea and to supporting industry partners with high-quality multi-client data programmes. The combination of extensive regional experience and advanced OBN imaging technologies positions Viridien to deliver insights that support infrastructure-led exploration across this important cross-border region. The framing reflects the broader competitive dynamics in the multi-client seismic market, where established providers compete on the basis of regional knowledge, processing capability, and the strength of their existing data library. Each new high-quality dataset added to the library increases the long-term commercial value of the franchise, supporting late sales and continued client engagement beyond the initial acquisition phase.

 

Outlook for North Sea Subsurface Imaging Demand

 

The Frigg survey reflects continued demand for high-quality subsurface data in mature North Sea basins, where exploration economics depend heavily on the precision of imaging and the ability to identify increasingly subtle targets. As operators continue to pursue infrastructure-led exploration and tieback opportunities, the value of detailed, integrated, cross-border datasets is expected to remain high. For Viridien and the broader subsurface imaging sector, sustained activity in the North Sea supports a stable foundation of multi-client survey work that complements activity in other major offshore basins. The continued investment in OBN-based programmes signals that operators view advanced imaging as a critical input to maintaining the productivity of one of Europe's most strategically important offshore regions.