Oslo – October 15, 2026 -- TGS has secured multi-client rights from state agency PetroGuin to reprocess more than 11,000 km2 of JAAN 3D seismic data across Guinea-Bissau, with final products due in Q4 2027.
TGS builds on 2019 reprocessing with new imaging tools
The agreement builds on the parties' previous 2019 PSDM reprocessing. TGS will apply elastic dynamic-matching full waveform inversion (E-DMFWI) and Kirchhoff pre-stack depth migration (KPSDM). The company expects a significant uplift in image quality compared with the existing data.
Improved imaging targets clastic and carbonate plays
The upgraded images are meant to improve assessment of both clastic and carbonate targets across the margin. TGS says this will give explorers greater confidence in evaluating prospectivity as they plan future exploration activity in Guinea-Bissau.
David Hajovsky, Executive Vice President at TGS, said the reprocessing will deliver a clear step change in image quality.
GeoPartners joins project with Q4 2026 start
TGS will run the project in collaboration with GeoPartners. Reprocessing is scheduled to begin in Q4 2026. Final products are expected in Q4 2027.
Dr. Alfredo Malu, General Director at PetroGuin, said the agency values its longstanding partnership with TGS and reaffirmed its commitment to honoring all obligations under the collaboration.
The agreement was signed in person at African Energy Week 2026 in Cape Town.