Viridien and TGS commence Phase III of next-generation Laconia sparse OBN program in US Gulf

Supported by industry funding, Laconia Phase III, covering approximately 150 OCS blocks in the Keathley Canyon protraction areas, will be acquired by TGS and imaged by Viridien to target prospective but difficult-to-image subsalt reservoirs. Acquisition started in May 2025 with initial products scheduled for delivery in Q1 2026.

Outstanding early-out results from Laconia Phase I clearly demonstrate the power of Viridien’s industry-leading elastic full-waveform inversion (E-FWI) imaging technology for setting new benchmarks for subsalt imaging and reservoir delineation. The combination of very-long-offset OBN and the low-frequency Sercel Tuned Pulse Source (TPS) provides significantly deeper diving-wave penetration for E-FWI to resolve the complex salt geometries and sediments, producing a step-change in subsalt imaging and highlighting exploration opportunities in the Paleogene trend with greater certainty. Fast-track data from Laconia Phase I is now available and fast-track data from Laconia Phase II is scheduled for August.