OSLO – October 11, 2026 -- TGS has launched a 514-square-kilometer 3D PSDM Multi-Parameter-FWI reprocessing project over PETRONAS' 2025 Megah discovery in Block SB-3K, offshore Sabah, Malaysia, with final products due in April 2027.
TGS applies elastic full waveform inversion to its 2017 Sabah dataset
The project applies TGS' Elastic Multi-Parameter Full Waveform Inversion and depth imaging technologies to the company's own legacy Geostreamer Sabah multi-client 3D Phase 2 dataset, acquired in 2017. TGS aims to deliver an improved dataset built on a high-resolution velocity model and diffraction imaging across the Megah Field.
Processing began in July 2026 and runs to April 2027
Work started in July 2026. Final products are scheduled for April 2027, roughly nine months after the project began.
TGS targets lower subsurface uncertainty ahead of appraisal decisions
David Hajovsky, EVP Multi-Client at TGS, said the Megah discovery has reinforced the area's exploration potential and that advanced reprocessing can play an important role in "reducing subsurface uncertainty." He said improved subsurface definition can directly support exploration and appraisal decisions.
The reprocessed data is intended to support more confident geological interpretation, prospect evaluation and future appraisal well planning.