Viola MultiComponent | PGS

Brazil - 2004

Viola MultiComponent 3D

The Viola 3D OBS infill program was designed to help delineate the producing field.
Website Map for Survey Viola MultiComponent 3D
The current production interval is a Tertiary Eocene sandstone. Additional 4C data were produced to further illuminate the reservoir extent.

Specifications

Survey summary

  • Type: 3D
  • Size: 88 sq.km
  • Acquisition year: 2004
  • Completion of processing: 2005
  • Water depth: 120 - 640 m
  • Shooting direction: 122 / 302
  • Vessels: Ocean Explorer, Falcon Explorer, Bergen Surveyor

Acquisition parameters

  • Number of streamers: 6
  • Streamer length: 6000 m
  • Streamer separation: 400 m
  • Shot interval: 37.5 m
  • Record length: 6000 ms
  • Sample rate: 2 ms
  • Bin dimensions (Processing): 12.5 x 25 m
  • Fold: 120

Processing

  • Dual sensor summation
  • Kirchhoff prestack time migration (PSTM)

Time products

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