Viridien commences advanced seismic imaging of Utsira North multi-client OBN survey to support exploration and development on the Norwegian Continental Shelf
Viridien (NYSE:CGG) has initiated the processing and imaging phase of its Utsira North multi-client Ocean Bottom Node (OBN) seismic survey in the Norwegian North Sea. The 513 sq km survey, located east of the Alvheim Field in the Southern Viking Graben, will be delivered for industry licensing in Q3 2026.
The project aims to enhance understanding of Norway's strategic offshore areas, utilizing cutting-edge seismic imaging workflows and proprietary time-lag full-waveform inversion (TLFWI) technology. The survey will improve resolution of complex geological intervals and help identify new exploration targets while supporting more efficient extraction of existing reserves.
Viridien (NYSE:CGG) ha avviato la fase di processamento e imaging del suo rilevamento sismico multi-client Ocean Bottom Node (OBN) Utsira North nel Mare del Nord norvegese. Il rilievo di 513 km², situato a est del giacimento Alvheim nel Southern Viking Graben, sarà consegnato per la licenza industriale nel 3° trimestre 2026.
Il progetto mira a potenziare la conoscenza delle aree offshore strategiche della Norvegia, impiegando flussi di lavoro di imaging sismico all’avanguardia e la tecnologia proprietaria TLFWI (time-lag full-waveform inversion). Il rilievo migliorerà la risoluzione di intervalli geologici complessi, faciliterà l’individuazione di nuovi obiettivi esplorativi e supporterà una estrazione più efficiente delle riserve esistenti.
Viridien (NYSE:CGG) ha iniciado la fase de procesamiento e imagen de su estudio sísmico multi-client Ocean Bottom Node (OBN) Utsira North en el Mar del Norte noruego. El levantamiento de 513 km², ubicado al este del campo Alvheim en el Southern Viking Graben, se entregará para licenciamiento industrial en el 3T de 2026.
El proyecto busca mejorar el conocimiento de las áreas marinas estratégicas de Noruega, utilizando flujos de trabajo de imagen sísmica de vanguardia y la tecnología propietaria TLFWI (time-lag full-waveform inversion). El estudio aumentará la resolución de intervalos geológicos complejos, ayudará a identificar nuevos objetivos de exploración y respaldará una extracción más eficiente de las reservas existentes.
Viridien (NYSE:CGG)는 노르웨이 북해의 Utsira North 멀티클라이언트 Ocean Bottom Node(OBN) 지진조사에 대한 처리 및 이미징 단계를 시작했습니다. 513 km² 규모의 조사는 Southern Viking Graben의 Alvheim 생산구동쪽에 위치하며 2026년 3분기 산업 라이선스 제출을 위해 제공될 예정입니다.
이 프로젝트는 첨단 지진 이미징 워크플로와 독자적인 TLFWI(time-lag full-waveform inversion) 기술을 활용해 노르웨이의 전략적 해양 지역에 대한 이해를 높이는 것을 목표로 합니다. 조사는 복잡한 지질 구간의 해상도를 향상시키고 새로운 탐사 타깃을 식별하는 데 기여하며 기존 매장량의 보다 효율적인 개발을 지원할 것입니다.
Viridien (NYSE:CGG) a lancé la phase de traitement et d’imagerie de son levé sismique multi-client Ocean Bottom Node (OBN) Utsira North en mer du Nord norvégienne. Le levé de 513 km², situé à l’est du gisement Alvheim dans le Southern Viking Graben, sera livré pour homologation industrielle au 3e trimestre 2026.
Le projet vise à améliorer la connaissance des zones offshore stratégiques de la Norvège, en utilisant des flux de travail d’imagerie sismique de pointe et la technologie propriétaire TLFWI (time-lag full-waveform inversion). Le levé renforcera la résolution des intervalles géologiques complexes, contribuera à identifier de nouvelles cibles d’exploration et soutiendra une exploitation plus efficiente des réserves existantes.
Viridien (NYSE:CGG) hat mit der Verarbeitung und Bildgebung seiner Utsira North Multi-Client Ocean Bottom Node (OBN) Seismikstudie in der norwegischen Nordsee begonnen. Die 513 km² große Studie, östlich des Alvheim-Feldes im Southern Viking Graben gelegen, wird zur Industriezulassung im 3. Quartal 2026 bereitgestellt.
Das Projekt zielt darauf ab, das Verständnis der strategischen Offshore-Gebiete Norwegens zu vertiefen, indem hochmoderne Seismik-Bildgebungs-Workflows und die proprietäre TLFWI-Technologie (time-lag full-waveform inversion) eingesetzt werden. Die Studie verbessert die Auflösung komplexer geologischer Abschnitte, hilft bei der Identifizierung neuer Explorationsziele und unterstützt eine effizientere Förderung bestehender Reserven.
- Strategic expansion of multi-client OBN portfolio in the Norwegian Continental Shelf
- Implementation of advanced proprietary TLFWI technology for enhanced seismic imaging
- Survey covers significant 513 sq km area in strategic Norwegian offshore region
- Potential to improve efficiency of existing reserve extraction in mature basins
- Extended timeline with final results not available until Q3 2026
- Limited to specific geographical region, showing dependency on Norwegian market
Paris, France – September 9, 2025
Viridien has announced the commencement of the processing and imaging phase for the Utsira North multi-client Ocean Bottom Node (OBN) seismic survey in the Norwegian North Sea, following the completion of acquisition this summer. Final imaging results are scheduled for delivery for industry licensing in the third quarter of 2026.
The 513 sq km Utsira North OBN survey is located to the east of the Alvheim Field in the Southern Viking Graben and will bring crucial insights into one of Norway’s most strategically important offshore areas, unlocking opportunities for near-field exploration and more efficient extraction of existing reserves in mature basins. The survey also enriches Viridien’s expanding multi-client OBN portfolio and further consolidates its strategic position in the North Sea as a leading innovative provider of OBN imaging on the Norwegian Continental Shelf (NCS).
Viridien’s expert imaging teams are currently applying their cutting-edge seismic imaging workflows, including the latest proprietary time-lag full-waveform inversion (TLFWI) technology, to deliver unprecedented seismic images of this region. As a result, Utsira North OBN will enhance resolution of the region’s complex geological intervals, illuminating how deep-seated faults help dictate sediment distribution and, in turn, clarifying the presence of reservoir facies and prospective new targets.
Dechun Lin, Head of Earth Data at Viridien, said: “Viridien’s imaging and licensing of the Utsira North OBN multi-client data reaffirms our long-term commitment to the NCS and our technological leadership in the region. Once again, as a high-value data provider, we are leveraging our unmatched subsurface imaging capabilities to deliver next-generation data that will empower E&P companies to make better decisions in mature and increasingly complex environments, maximizing returns from their existing infrastructure and near-field exploration investments.”
About Viridien:
Viridien (www.viridiengroup.com) is an advanced technology, digital and Earth data company that pushes the boundaries of science for a more prosperous and sustainable future. With our ingenuity, drive and deep curiosity we discover new insights, innovations, and solutions that efficiently and responsibly resolve complex natural resources, digital, energy transition and infrastructure challenges. Viridien employs around 3,200 people worldwide and is listed as VIRI on the Euronext Paris SA (ISIN: FR001400PVN6).
Contacts
| Investor Relations Alexandre Leroy Tel: + 33 6 85 18 44 31 E-Mail: ir@viridengroup.com | Media Relations Sara Pink-Zerling Tel: + 33 6 37 57 95 44 E-Mail: media.relations@viridiengroup.com |
Attachment
FAQ
What is the size and location of Viridien's new Utsira North OBN survey?
When will Viridien (CGG) deliver the final imaging results for the Utsira North survey?
What technology is Viridien using for the Utsira North seismic survey?
What are the expected benefits of the Utsira North OBN survey?
How does the Utsira North survey fit into Viridien's broader strategy?
