CGO Marine XX | PGS

Congo Basin - Congo - 2015

CGO Marine XX 3D GeoStreamer®

High-quality enhancement to Congo MegaSurvey dataset
Website Map for Survey Marine XX
This conventional dataset includes 2918 sq. km of high-quality 3D seismic data.
The data targets the proven Miocene channel and Sendji carbonate plays, as well as prospectivity in the under-explored presalt section.
Simultaneous long offset 3D GeoStreamer data has provided denser sampling and higher fold. This has improved model building and imaging of both the postsalt channels and plays, and the presalt section.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: SLO
  • Size: 2 918 sq.km
  • Acquisition year: 2015
  • Completion of processing: December 2016
  • Shooting direction: 32/212
  • Vessel: Ramform Vanguard
  • In partnership with: SNPC

Acquisition parameters

  • Number of streamers: 12
  • Streamer length: 14 000 m
  • Streamer separation: 100 m
  • Shot interval: 25 m
  • Record length: 12 000 ms
  • Sample rate: 2 ms

Processing

  • P-UP generation
  • 3D surface related multiple elimination (SRME)
  • High resolution radon demultiple
  • Kirchhoff prestack depth migration (PSDM)
  • Beam depth migration

Depth products

  • Final Kirchhoff PSDM stack
  • Final beam PSDM stack
  • Final Kirchhoff PSDM angle stacks
  • Fast Track Beam stack
  • Raw Kirchhoff PSDM gathers
  • Final Kirchhoff PSDM gathers
  • Raw Kirchhoff PSDM full stack
  • PSDM velocity model
  • PSDM anisotropy model
  • Stacking velocity model
  • Final Kirchhoff PSDM structural stack
  • Raw RTM stack
  • Final RTM stack
  • Final RTM angle stacks
  • Final RTM structural stack
  • Final horizons

Time products

  • Demultiple shot gathers
  • Raw RTM stack
  • Final RTM stack
  • Final RTM angle stacks
  • Final RTM structural stack

Additional products

  • Gravity
  • Magnetics