Viridien announces new seismic reimaging program over block 22 offshore Angola to support upcoming licensing round

Rhea-AI Summary

Viridien announced a multi-client seismic reimaging program over Block 22 offshore Angola to support the country's upcoming licensing round. The program covers 4,300 sq km of high-end reprocessed data targeting structures along the Atlantic Hinge zone, following the trend of Cameia and Golfinho fields. Fast-track results are due in Q1 2026 with final products scheduled in Q3/Q4 2026. Viridien will apply its proprietary workflows including time-lag FWI, Q-FWI, Q-Kirchhoff plus advanced deghosting and demultiple. Combined with existing 2,900 sq km over block 20/11, operators gain access to > 7,200 sq km of broadband PSDM for pre-salt and post-salt evaluation in the Kwanza Basin.

Positive

• 4,300 sq km reimaging program targets Atlantic Hinge prospects
• Fast-track deliverables due in Q1 2026
• Combined regional coverage > 7,200 sq km broadband PSDM

Negative

• None.

Key Figures

Block 22 area: 4,300 sq km Existing block 20/11 data: 2,900 sq km Combined coverage: over 7,200 sq km +2 more

5 metrics

Block 22 area 4,300 sq km High-end seismic reimaging data set offshore Angola

Existing block 20/11 data 2,900 sq km Existing seismic data over nearby block 20/11

Combined coverage over 7,200 sq km Combined ultramodern broadband PSDM regional coverage

Fast-track delivery Q1 2026 Scheduled delivery of fast-track reimaging results

Final products window Q3/Q4 2026 Scheduled delivery for final reimaging products

Market Reality Check

normal vol

Technical Price is trading below the 200-day MA of 3.17, indicating a weaker pre-news trend.

Market Pulse Summary

This announcement highlights Viridien’s commitment to Angola’s offshore exploration, adding a 4,300 ...

Analysis

This announcement highlights Viridien’s commitment to Angola’s offshore exploration, adding a 4,300 sq km reimaging program over block 22 and bringing combined ultramodern PSDM coverage to over 7,200 sq km in the Kwanza Basin. With fast-track results targeted for Q1 2026 and final products in Q3/Q4 2026, investors may watch for project execution, data sales progress, and how operators utilize these datasets in upcoming licensing rounds.

Key Terms

seismic reimaging, demultiple

2 terms

seismic reimaging technical

"announced a new multi-client seismic reimaging program over Angola’s"

Seismic reimaging is the process of taking existing underground sound-wave data and applying newer computer methods to create clearer pictures of what lies beneath the surface. Like updating an old photo with a higher-resolution camera and better editing, it can reveal previously missed features or correct earlier mistakes, which can change estimates of oil, gas, or mineral deposits and lower the risk and cost of future drilling — information investors use to reassess a project's value and prospects.

demultiple technical

"Q-Kirchhoff and advanced deghosting and demultiple."

Demultiple means a company’s market price being valued at a lower multiple of a financial measure—most commonly price relative to earnings—so the stock looks cheaper compared with past levels or peers. Think of it like a house that used to sell for ten times the annual rent but now sells for six; investors care because a lower multiple can mean the market expects slower growth, higher risk, or improved near-term value from earnings increases, all of which affect potential returns.

AI-generated analysis. Not financial advice.

Paris, France – December 10, 2025

Viridien has announced a new multi-client seismic reimaging program over Angola’s highly prospective offshore block 22 to support the country’s upcoming licensing round. The 4,300 sq km high-end data set will bring valuable insight into underexplored structures along the Atlantic Hinge zone, following the same trend as the proven Cameia and Golfinho fields. Fast-track results are scheduled for delivery in Q1 2026 and final products in Q3/Q4 2026.

Viridien will reimage the block 22 data set with its latest proven proprietary technologies, including time-lag FWI, Q-FWI, Q-Kirchhoff and advanced deghosting and demultiple. This data will complement its 2,900 sq km of data over nearby block 20/11, giving operators access to a combined regional coverage of over 7,200 sq km of ultramodern broadband PSDM data to conduct regional pre-salt and post-salt play evaluation in the Kwanza Basin.

Dechun Lin, Head of Earth Data, Viridien, said: “Viridien is delighted to continue its strong relationship with Angola's national energy agency, ANPG (Agência Nacional de Petróleo, Gás e Biocombustíveis), and longstanding presence in Angola by committing to this new reimaging project which will support their important upcoming licensing round. We have the most modern 3D broadband seismic data available offshore Angola and will continue to generate value from it to provide critical support for industry decision-making and help to increase exploration success.”

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

• Viridien EDA Angola Block Reimaging

FAQ

What did Viridien announce for Block 22 offshore Angola (CGG) on December 10, 2025?

Viridien announced a 4,300 sq km multi-client seismic reimaging program with fast-track results in Q1 2026 and final products in Q3/Q4 2026.

How will Viridien's Block 22 reimaging affect data coverage for operators near Block 20/11 (CGG)?

The new reimage plus existing 2,900 sq km over Block 20/11 provides combined regional coverage of over 7,200 sq km of broadband PSDM data.

What proprietary technologies will Viridien use on Block 22 (CGG)?

Viridien will use time-lag FWI, Q-FWI, Q-Kirchhoff and advanced deghosting and demultiple in the reimaging workflow.

When will investors or operators see initial results from Viridien's Block 22 program (CGG)?

Fast-track results are scheduled for delivery in Q1 2026, with final deliverables in Q3/Q4 2026.

What basin and play types does the Block 22 dataset target (CGG)?

The dataset targets pre-salt and post-salt play evaluation in the Kwanza Basin, along the Atlantic Hinge zone.