BNN Blk 4 Reprocessed 2016 | PGS

West Africa Transform Margin - Benin

BNN Blk 4 Reprocessed 2016 3D

Reprocessed 3D survey covering 1 790 sq. km over block 4, offshore Benin.
Website Map for Survey BNN_B4_MC3D
Rejuvenation of MC3D leads to enhanced imaging and improved understanding of the prolific Upper Cretaceous petroleum system present across the Transform Margin.
Prospectivity and regional interpretation with key horizons tied to a well data package is available as part of the Benin Advanced Interpretation Project. Pre-stack PSTM products also allows for detailed AVO analysis of the area.
Optimized denoising algorithms and a full deghosting sequence improve data bandwidth and signal-to-noise ratio. The multiple attenuation sequence eliminates complex multiples improving the image integrity.

Specifications

Survey summary

  • Type: 3D
  • Geometry: Standard
  • Size: 1 780 sq.km
  • Acquisition year: 1997
  • Completion of processing: 2016
  • Reprocessing: Yes
  • Water depth: 1 000 - 2 500 m
  • Vessel: Ramform Explorer
  • In partnership with: Government of Benin

Acquisition parameters

  • Number of streamers: 8
  • Streamer length: 4 500 m
  • Streamer separation: 25 m
  • Shot interval: 50 m
  • Record length: 8000 ms
  • Sample rate: 2 ms
  • Fold: 45

Processing

  • 3D surface related multiple elimination (SRME)
  • High resolution radon demultiple
  • Kirchhoff prestack time migration (PSTM)
  • RBO/SBO

Time products

  • Final Kirchhoff PSTM Stack
  • PSTM gathers
  • Stacking velocity
  • Migration velocity
  • Angle Stack