Norway’s Shearwater GeoServices has surfaced with the lowest commercial offer in a Petrobras tender to carry out a major proprietary 3D seismic survey covering a trio of large pre-salt fields in the Santos basin offshore Brazil.

It was the second consecutive time that Shearwater finished ahead in a Petrobras tender, after also landing on top in a race to conduct a 4D seismic campaign at two deep-water fields in the prolific Campos basin.

In the tender to run a 3D survey featuring the use of ocean-bottom node (OBN) technology in the Atapu, Berbigao and Sururu pre-salt fields, Shearwater defeated competition by submitting a proposal worth 485.6