BM-S-50/52 | PGS

Santos Basin - Brazil - 2007

BM-S-50/52 3D

Presalt 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. Postsalt: Albian limestones; Upper Cretaceous to Lower Tertiary turbidites in subtle traps; b. Rift/Pre-rift sandstones and basalts in the central-western area and, c. Sag/Rift Aptian presalt 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 presalt targets: Sagitario trend and the Carcará-Itaipava trend.
Presalt 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 subsalt 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 prestack time migration (PSTM)
  • Kirchhoff prestack depth migration (PSDM)
  • Beam depth migration
  • Radon and residual

Depth products

  • Final Kirchhoff PSDM stack
  • Final beam PSDM stack
  • PSDM angle stack near
  • PSDM angle stack mid
  • PSDM angle 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