TGS has launched the APEX 1 a multi-client long-offset ocean bottom node (OBN) acquisition campaign in the Gulf of America.
TGS has launched the APEX 1 a multi-client long-offset ocean bottom node (OBN) acquisition campaign in the Gulf of America.
The first-of-its-kind survey sets a benchmark for large-scale long offset multi-client seismic by deploying a denser node grid than previous ultra-long offset OBN programs and by being designed as a standalone exploration dataset, without reliance on underlying streamer seismic coverage.
APEX 1 is enabled by TGS’ Gemini enhanced frequency source and leverages the TGS’ expertise in long-offset OBN acquisition, processing, and Dynamic Matching FWI (DM-FWI), said the company. The combination of dense node spacing, ultra-long offsets, and advanced imaging workflows is designed to deliver a step-change in subsurface resolution, velocity accuracy, and geological confidence for exploration and appraisal.
Node deployment for APEX 1 commenced in December 2025, and acquisition is expected to be completed in late Q2 2026. Early products are expected in Q3 2026 and final data delivery Q4 2027.
Meanwhile, TGS is opening an Imaging Centre in Kuala Lumpur to support its multi-client projects throughout the Asia-Pacific region.
‘The Kuala Lumpur Imaging Centre builds on the successful launch of TGS’ Advanced Capabilities Centres for Petrobras in Brazil, where the company has demonstrated how local geoscientists, supported by global experts, can accelerate project delivery and improve customer outcomes in complex offshore environments,’ said TGS.
During its first year of operation, the Kuala Lumpur Imaging Centre will be supported by TGS’ established imaging teams. The centre will leverage cloud-based infrastructure hosted in Malaysia to support efficient, secure, and compliant data processing workflows.
