BM-J-4 South | PGS

Jequitinhonha Basin - Brazil - 2011

BM-J-4 South 3D GeoStreamer®

Encompasses the shelf to deeper water area of the northern part of the Jequitinhonha Basin.
Website Map for Survey BM-J-4S
Prospective targets include sandstones and/or carbonates in the Cretaceous.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: MAZ
  • Size: 1071.2 sq.km
  • Acquisition year: 2011
  • Completion of processing: 2012
  • Reprocessing: Yes
  • Water depth: 1000 - 3500 m
  • Shooting direction: 0 / 180; 150 / 330; 90 / 270
  • Vessel: Ramform Valiant

Acquisition parameters

  • Number of streamers: 10
  • Streamer length: 8100 / 6000 m
  • Shot interval: 25 m
  • Record length: 10000 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 6.25 x 25 m
  • Bin dimensions (Processing): 12.5 x 12.5 m
  • Fold: 80

Processing

  • P-UP generation
  • Kirchhoff prestack time migration (PSTM)
  • Kirchhoff prestack depth migration (PSDM)

Depth products

  • Final Kirchhoff PSDM stack
  • Final multi-azimuth (MAZ) stack
  • Final beam PSDM stack
  • PSDM gathers
  • PSDM angle stack near
  • PSDM angle stack mid
  • PSDM angle stack far
  • Velocity model

Time products

  • Final Kirchhoff PSTM Stack
  • Angle stack near
  • Angle stack mid
  • Angle stack far
  • PSTM gathers
  • Stacking velocity
  • Migration velocity