PGS launches multi-client 3D seismic survey offshore Brazil

March 3, 2020
The Campos Deepwater GeoStreamer X project is expected to deliver long offset, multi-azimuth seismic data over the deepwater portion of the northern Campos basin, according to PGS.

Offshore staff

OSLO, Norway PGS has started acquiring a GeoStreamer X multi-client 3D seismic survey offshore Brazil.

The Campos Deepwater GeoStreamer X project is expected to deliver long offset, multi-azimuth seismic data over the deepwater portion of the northern Campos basin.

The company’s flagship seismic survey vessel Ramform Titan is said to be towing the largest acquisition spread ever deployed in Brazil, comprising more than 140,000 m (459,316 ft) of active multi-sensor streamers.

The 14,5000-sq km (5,590-sq mi) survey will cover presalt open acreage, blocks acquired in the 14th Bidding Round, as well as open acreage offered in the 17th Bidding Round that is scheduled for late-2020. 

First data is expected to be available in 4Q 2020.

The tailored acquisition configuration for the GeoStreamer X project will provide 10 km (6.2 mi) long offsets, to improve depth velocity modeling accuracy of the postsalt, salt, and presalt sections. This, the company said, is facilitated by using its full waveform inversion technologies. These additional offset data also promise added angle range for presalt seismic amplitude analysis and reservoir characterization. 

Expected to be available in 4Q 2021, the final multi-azimuth products will include TTI Kirchhoff and RTM (45 Hz) PSDM.

03/03/2020