BM-J-1 | PGS

Jequitinhonha Basin - Brazil - 2002

BM-J-1 3D

Encompassing the shallow water area and shelf slope of the northern part of the Jequitinhonha Basin.
Website Map for Survey BM-J-1
Prospective tertiary turbidites and cretaceous sands are potential targets.

Specifications

Survey summary

  • Type: 3D
  • Geometry: Standard
  • Size: 768 sq.km
  • Acquisition year: 2002
  • Completion of processing: 2002
  • Reprocessing: Yes
  • Water depth: 50 - 1300 m
  • Shooting direction: 0 / 180
  • Vessel: Ramform Explorer

Acquisition parameters

  • Number of streamers: 8
  • Streamer length: 6000 m
  • Streamer separation: 100 m
  • Shot interval: 25 m
  • Record length: 9000 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

  • Radon and residual
  • Poststack finite difference
  • Kirchhoff prestack depth migration (PSDM)

Depth products

  • Final Kirchhoff PSDM stack
  • Velocity model

Time products

  • Angle stack near
  • Angle stack far
  • Stacking velocity
  • Migration velocity
  • Final post-stack time migration