CDI Blk 705/706 Reprocessed | PGS

Côte d’Ivoire - 1996

CDI Blk 705/706 Reprocessed 3D

3D seismic survey covering open blocks 705 and 706 offshore Côte d'Ivoire
Website Map for Survey CDI_CI104_CI105_MC3D
The 2014 reprocessing project resulted in high quality 3D data which help to understand reservoir distribution and allow for accurate mapping of a number of potential leads and studies have demonstrated significant prospectivity in the survey area.
Added clarity to highly prospective features such as extensive syn-rift system of Aptian-Albian transitional marine sandstones within a prominent structural target and Late Cretaceous post-rift channels and fans systems.
By applying a modern broadband time processing workflow (by broadening the seismic frequency post-acquisition and removing the source and receiver ghost), PGS have been able to image the deeper syn-transform and early post-transform sections with much greater fidelity.

Specifications

Survey summary

  • Type: 3D
  • Size: 1 664 sq.km
  • Acquisition year: 1996
  • Completion of processing: 2014
  • Reprocessing: Yes
  • Water depth: 50 - 2,000 m
  • Shooting direction: 86/266
  • Vessel: Ramform Challenger
  • In partnership with: Petroci

Acquisition parameters

  • Number of streamers: 8
  • Streamer length: 4 200 m
  • Streamer separation: 100 m
  • Shot interval: 25 m
  • Record length: 8 000 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 6.25 x 12.5 m
  • Bin dimensions (Processing): 12.5 x 12.5 m
  • Fold: 41

Processing

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

Time products

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