Norwegian energy data specialist TGS has announced the launch of Phase I of its 3D multi-client seismic survey in the Pelotas Basin, off the southern coast of Brazil. The programme covers approximately 14,800 square kilometres across 21 exploration blocks, most of which are located in unassigned acreage expected to be offered in future licensing rounds.
Deployment of a Titan-class vessel
The survey will be conducted using a Ramform Titan-class seismic vessel, equipped with TGS’s GeoStreamer® technology, designed to deliver high-resolution seismic data. Operations are set to begin in the fourth quarter, with final data delivery expected by the third quarter of 2026. The project is backed by industry funding, confirming the sector’s growing interest in the area.
A basin with strong geological potential
The Pelotas Basin features geological structures similar to those of the conjugate margins of West Africa, where multiple hydrocarbon systems have already been proven. It includes early basin carbonates and passive margin clastic deposits, featuring three organic-rich intervals from the Albian, Turonian and Paleocene ages.
Strengthening TGS’s presence in Brazil
With this new campaign, TGS brings to three the number of Ramform Titan-class vessels currently deployed off the Brazilian coast, thus expanding its seismic coverage along the South American Atlantic margin. This operation follows the announcement of two other multi-client projects in the Equatorial Margin during the third quarter.
Increased interest from oil companies
According to the Chief Executive Officer of TGS, exploration activity is intensifying in the area, with several major oil companies increasing their presence and commitments in the Pelotas Basin. TGS aims to provide advanced imaging tools to help companies reduce geological uncertainty and better plan upcoming drilling operations.
