NGA OPL 314/315/321/323 Reprocessed | PGS

Nigeria - 2004

NGA OPL 314/315/321/323 Reprocessed 3D

Revitalization of MC3D to produce modern PSDM
Website Map for Survey NGA_314_315_321_323_MC3D_Repro
This is the missing link that enables the integrated exploration joining the West Africa Transform Margin to the Niger Delta Basins. Located at the meeting point between the Benin Embayment and the Benue Trough, this 3D dataset covers an area over blocks OPL314, OPL315, OPL321 and OPL323.
The primary source rock of the prolific petroleum system in Niger Delta province is organic-rich marine shale of the Akata formation, the main reservoir is the Agbada Formation. Many fields have been discovered to the south and east, including the giant Bosi (1996), Erha (1999) and Oyo North (2018).
Optimized denoising algorithms and a full deghosting sequence improve data bandwidth and signal-to-noise ratio. The multiple attenuation sequence eliminates complex multiples, and a full-velocity model building sequence, together with a depth migration, improves the image integrity.


Survey summary

  • Type: 3D
  • Geometry: Standard
  • Size: 2969.3
  • Acquisition year: 2004
  • Completion of processing: 2019
  • Reprocessing: Yes
  • Water depth: 500 - 2000 m
  • Shooting direction: 135 / 315
  • In partnership with: DPR

Acquisition parameters

  • Number of streamers: 8-10
  • Streamer length: 6300 m
  • Shot interval: 25 m
  • Record length: 8500 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 12.5 x 18.75 m
  • Fold: 60

Depth products

  • Velocity model
  • Final Beam PSDM stack
  • Final & Raw Kirchhoff PSDM stack
  • Final & Raw Kirchhoff PSDM angle stacks
  • Final & Raw Kirchhoff PSDM gathers
  • Processing report

Time products

  • Demultiple shots
  • Regularized CMP gathers
  • Post-demultiple PoSTM stack
  • Velocity model
  • Final & Raw Kirchhoff PSTM stack
  • Final & Raw Kirchhoff PSTM angle stacks
  • Final & Raw Kirchhoff PSTM gathers
  • Processing report