NGA OPL 458 | PGS

Central Niger Delta - Nigeria - 1999

NGA OPL 458 3D

Conventional MultiClient 3D data offshore Nigeria
Website Map for Survey NGA_458_MC3D
This popular 3D seismic survey is aimed to provide an understanding of this highly prolific Niger Delta and further highlighting its considerable remaining exploration potential. Additional information with regard to each individual survey is available upon request.
The Niger Delta province prolific petroleum system produces from a major regressive delta system. The primary source rock is the Akata formation, a marine shale enriched in organic matter deposited from the Paleocene to today. The main reservoir unit is the Agbada Formation.

Specifications

Survey summary

  • Type: 3D
  • Size: 1 561 sq.km
  • Acquisition year: 1999
  • Completion of processing: 2003
  • Water depth: 50-1 000 m
  • Shooting direction: 145/325
  • Vessel: Ramform Valiant
  • In partnership with: DPR
  • Alternate ID: OML 136

Acquisition parameters

  • Number of streamers: 6
  • Streamer length: 6 000 m
  • Streamer separation: 100 m
  • Shot interval: 25 m
  • Record length: 8 500 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 12.5x25 m
  • Fold: 60

Processing

  • Kirchhoff Pre-Stack Time Migration (PSTM)
  • Tau-P Deconvolution
  • Radon

Time products

  • Final Kirchhoff Pre-Stack Time Migrated Stack
  • Angle stacks (Near, Mid and Far)
  • Difference volume
  • PSTM gathers
  • Stacking and Migration Velocities