BM-S-50/52 | PGS

Santos Basin - Brazil - 2007

BM-S-50/52 3D

Pre-salt trend and adjacent to the most prolific fields and discoveries in northern Santos Basin.
Website Map for Survey BM-S-50/52
The hydrocarbon plays within the BMS-50/52 survey area are: A. Post-Salt: Albian limestones; Upper Cretaceous to Lower Tertiary turbidites in subtle traps; B. Rift/Pre-rift sanstones and basalts in the central-western area and, C. Sag/Rift Aptian pre-salt microbial limestones.
By analogy with other areas in Santos, the BMS-50/52 area has a large hydrocarbon exploration potential, with possibilities for significant light-oil discoveries. Most important trends are the pre-salt targets: Sagitario trend and the Carcará-Itaipava trend.
Pre-salt exploration trends in the southern part of the survey area are the lowest-risk, most attractive opportunities and the GeoStreamer™ seismic data (Ph II) affords improved sub-salt imaging and identification of potential reservoir sweep-spots.

Specifications

Survey summary

  • Type: 3D
  • Geometry: Standard
  • Size: 4233.1 sq.km
  • Acquisition year: 2007
  • Completion of processing: 2008
  • Reprocessing: Yes
  • Water depth: 150 / 2085 m
  • Shooting direction: 0 / 180
  • Vessel: Ramform Valiant

Acquisition parameters

  • Number of streamers: 10
  • Streamer length: 6000 m
  • Streamer separation: 100 m
  • Shot interval: 50, 25 flip-flop m
  • Record length: 9200 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 6.25 x 25 m
  • Bin dimensions (Processing): 12.5 x 12.5 m
  • Fold: 60

Processing

  • 3D Surface Related Multiple Elimination (SRME)
  • Kirchhoff Pre-Stack Time Migration (PSTM)
  • Kirchhoff Pre-Stack Depth Migration (PSDM)
  • Beam Depth Migration
  • Radon and residual

Depth products

  • Final Kirchhoff PSDM Stack
  • Final BEAM PSDM Stack
  • Angle PSDM Stack Near
  • Angle PSDM Stack Mid
  • Angle PSDM Stack Far
  • PSDM Gathers
  • Velocity Model

Time products

  • Final Kirchhoff PSTM Stack
  • Angle Stack Near
  • Angle Stack Mid
  • Angle Stack Far
  • PSTM Gathers
  • Stacking Velocity
  • Migration Velocity