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Nigeria Transform Margin - Nigeria - 2010

NGA NTM 3D GeoStreamer

The easternmost extension of the Equatorial Transform Margin over open blocks
Website Map for Survey NGA_NTM-C_MC3D
Over 2 800 sq. km of GeoStreamer 3D data offshore Nigeria. This survey was designed to highlight the hydrocarbon potential of the easternmost extension of the Equatorial Transform Margin, in open blocks OPL 312, 313, and 314.
The Nigeria Transform Margin area is a proven petroleum province. The Hihon and Fifa discoveries lie to the west, and the Aje Field and recent Ogo-1 discovery lie immediately to the north.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer
  • Size: 2 845 sq.km
  • Acquisition year: 2010
  • Completion of processing: 2011
  • Water depth: 1 200-2 700 m
  • Shooting direction: 90/270
  • Vessel: Ramform Challenger
  • In partnership with: DPR

Acquisition parameters

  • Number of streamers: 12
  • Streamer length: 6 000 m
  • Streamer separation: 75 m
  • Shot interval: 25 m
  • Record length: 8 192 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 12.5x18.75 m
  • Fold: 60

Processing

  • 3D surface related multiple elimination (SRME)
  • Anisotropic Kirchhoff prestack time migration (PSTM)
  • Dual Sensor Wave field separation and P-UP generation
  • High Resolution Radon

Time products

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