Central Graben - DK


This dataset enables exploration companies to gain a better geological understanding of the area
Website Map for Survey MC3D-ANGELINA_PGS
Providing 3D coverage of the Heno Platform and parts of the Gertrud and Step Graben, at the transition between the Central Graben and the Mid North Sea High, this survey aims to enable near-field exploration and development, primarily of Jurassic discoveries such as Bertel, Q1, Ravn.
The petroleum system is characterized by tilted fault blocks sourced by the Bryne Coal Formation and possibly by the Kimmeridgian Clay. The main reservoir units in the existing discoveries are primarily Triassic sandstones (Bunter Fm) and Upper Jurassic marine sandstones (Heno Fm).
State-of-the-art processing has provided clear improvements in signal to noise ratio to allow an optimized structural interpretation and enhanced stratigraphic imaging of the prospective Jurassic, Triassic and Permo-Carboniferous reflectors.


Survey summary

  • Type: 3D
  • Size: 1 449
  • Acquisition year: 2007
  • Completion of processing: 2008
  • Water depth: 30-70 m
  • Shooting direction: 62
  • Vessel: Atlantic Explorer

Acquisition parameters

  • Number of streamers: 6
  • Streamer length: 6 000 m
  • Streamer separation: 100 m
  • Shot interval: 18.75 m
  • Record length: 7 168 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 25.0 x 12.5 m
  • Bin dimensions (Processing): 12.5 x 12.5 m
  • Fold: 80


  • High resolution radon demultiple
  • XT / Tau-P Deconvolution
  • Kirchhoff prestack time migration (PSTM)

Time products

  • Final Kirchhoff PSTM Stack
  • Angle stack near
  • Angle stack mid
  • Angle stack far
  • PSTM gathers
  • Stacking velocity
  • Migration velocity
  • Angle stack u-far