Brazil Southern Basin Multiclient Seismic Surveys

2D and 3D seismic data in the Pelotas, Santos, Campos, and Espirito Santo basins

Brazil Southern Basin

Southern basin surveys available:

  • 2D datasets
    • Santos, Campos, and Espirito Santo PSDM (isotropic and TTI anisotropic) survey (in cooperation with TGS-NOPEC Geophysical Company)
    • Pelotas 2D Phases 1 and 2 and reprocessing surveys (in cooperation with Spectrum)
  • 3D datasets
    • Campos 3D PSDM TTI anisotropic reprocessing of Phases I–IV surveys
    • Santos 3D Phase III PSDM reprocessing survey
    • Brazil HD4D 3D surveys
      • Iara
      • Jupiter
      • Guará-Carioca
    • Iara Coil Shooting acquisition survey

WesternGeco, in a joint venture with TGS, has more than 127,000 km of prestack depth migration (isotropic and TTI anisotropic) 2D data available in the Brazilian East Margin, covering the Santos, Campos, and Espirito Santo basins.

Also available over the Campos basin are our newly reprocessed Campos 3D (Phases I–IV) surveys. Final products include anisotropic TTI Kirchhoff prestack depth migration and reverse time migration volumes.

Covering approximately 11,000 km2 of the Santos basin, the Santos 3D Phase III survey offers both anisotropic TTI Kirchhoff prestack depth migration and reverse time migration volumes.

In the center of the presalt area, we have acquired Brazil HD4D surveys. These high-definition 4D-ready Iara, Jupiter, and Guará-Carioca surveys cover approximately 10,595 km2 of the Santos basin and include anisotropic TTI Kirchhoff prestack depth migration final volumes.

Inside of the Iara HD4D survey boundaries, we have applied some of our most advanced technologies in acquiring a Coil Shooting single-vessel full-azimuth acquisition survey to better illuminate the complex subsurface of this area.

Farther south, over the Pelotas basin, new 2D data is available. Acquired over three phases in a joint venture with Spectrum, we have approximately 31,565 km of prestack time migration and prestack depth migrations data available.

Key highlights

  • 2D surveys
    • Full 2D coverage over the presalt area and most of the basins
    • 2D surface- related multiple attenuation (SRME)
    • New 2D anisotropic TTI depth migration
  • 3D surveys
    • 3D GSMP 3D general surface multiple prediction technology
    • 3D anisotropic TTI Kirchhoff depth migration PSDM

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