First Published: Offshore Magazine - April 2026, by Igor Marino (TGS)
This article explores seismic data acquisition methods, including 2D, 3D and 4D surveys, highlighting technological advancements like towed multisensor streamers and ocean-bottom nodes that enhance subsurface imaging for offshore energy exploration.
Key Highlights
- Seismic acquisition involves generating controlled sound waves and recording their reflections to image subsurface geological layers.
- Different survey types, including 2D, 3D and 4D, serve various exploration objectives, with 3D and 4D providing detailed structural and reservoir change insights.
- Modern offshore methods utilize towed streamers and ocean-bottom nodes, while land surveys employ vibratory sources and geophones for comprehensive data collection.
- Advances in sensor technology, survey design and data processing techniques, like RTM and FWI, significantly improve image resolution and depth penetration.
Key elements in offshore marine seismic acquisition.
Read the full article here.