Brazil Second Transfer of Rights Bidding Round

Enhance your prospectivity assessment of presalt fields in the Santos Basin

Join the upcoming bid round in Brazil

A new round of surplus volumes in the Sépia and Atapu Fields will be auctioned off 17 December 2021 as part of the Second Transfer of Rights Surplus Production-Sharing Bidding Round. In November 2019, the Brazil Transfer of Rights Bid Round for Excess Volumes was held to offer the Búzios, Itapu, Sépia, and Atapu areas. Volumes in the Búzios and Itapu areas were the largest auctioned off in the oil industry. The auction increased the country's competitiveness in the international market, valued the national energy resource, attracted investments, and boosted Brazil's collection.

The Brazilian government is now reauctioning surplus areas in the Sépia and Atapu Fields of the Santos Basin—with an estimated signature bonus for the Sépia Field at USD 1.32 billion with a share rate of 15.02% and USD 740 million for the Atapu Field with a share rate of 5.89%.

The auction is expected to “present extremely promising results,” according to the Minister of Mines and Energy, Bento Albuquerque. “In these fields, during the period of operation, the expected investments are USD 37 billion.”

Accelerate exploration and appraisal and resolve subsurface challenges in the Santos Basin with high-quality multiazimuth imaging.

Illuminate complex subsurface targets with HD seismic data

Within the presalt polygons of the Santos Basin, WesternGeco has completed reimaging of the Berbigão, Itapu, Sururu, Atapu, and Sépia areas. The Central Santos reimaging project takes these high-definition 3D surveys and incorporates the latest technology to improve subsurface imaging.

WesternGeco has created a multiazimuth 3D merge of three existing surveys: proprietary high-density 3D seismic data, coil 3D data, and available public NAZ data—providing unmatched illumination at the presalt target level. This 2,400-km2 dataset provides the best imaging to evaluate and appraise the Transfer of Rights area. The processing workflow across this area comprised high-end technology solutions to overcome the challenges of presalt imaging, including

high-density acquisition and multiazimuth datasets for improved model updates and target illumination
broadband signal processing for better presalt faulting definition
reflection full-waveform inversion for robust velocity in the salt and presalt model and more detailed target imaging
variable-aperture, multiazimuth 3D general surface multiple prediction (GSMP) model for improved multiple modeling and subtraction.

Image showing reprocessed seismic data from legacy data in the Central Santos Basin

In the presalt section, continuity of reflectors has improved from the legacy image, and fault planes are much more defined.

The result is a clean final migrated image that can provide greater confidence in subsurface evaluation and lead to more effective drilling decisions in the appraisal and production phases.

Some of our most advanced technologies have been applied to acquire a Coil Shooting single-vessel full-azimuth acquisition survey inside the Central Santos multiazimuth survey boundaries. This will enable you to better illuminate the complex subsurface and characterize the presalt reservoirs.