NVG11M | PGS

Viking Graben - Norway - 2011

NVG11M 3D GeoStreamer®

Improved resolution for known fields and potential new discoveries
Website Map for Survey MC3D-NVG11M
Covering over the Vana Sub-Basin, north-western Utsira High, Vølve Sub-Basin, Fersal Sub-Basin and East Shetland Basin, this survey targets an area that has been extensively explored with numerous commercial oil and gas discoveries.
The area is prolific with nearby discoveries and fields showing three primary reservoir units; Middle to Late Jurassic sandstones and Tertiary sandstones. The main source rock in the area is the Late Jurassic Draupne Fm shale although a Middle Jurassic source rock is also possible.
Improved imaging and resolution make this an excellent tool for further exploring this mature area to unlock future potential.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: Standard
  • Size: 8 364 sq.km
  • Acquisition year: 2011
  • Completion of processing: 2012
  • Water depth: 80-130 m
  • Shooting direction: 294.28 / 114.28
  • Vessel: Atlantic Explorer
  • In partnership with: TGS
  • Alternate ID: MC3D-NVG11M

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): 6.25 x 25 m
  • Bin dimensions (Processing): 12.5 x 12.5 m
  • Fold: 80

Processing

  • Dual Sensor Wave Field separation and P-UP generation
  • High Resolution Radon Demultiple
  • XT / Tau-P Deconvolution
  • Anisotropic Kirchhoff Pre-Stack Time Migration (PSTM)

Time products

  • Final Kirchhoff PSTM Stack
  • Angle Stack Near
  • Angle Stack Mid
  • Angle Stack Far
  • Angle Stack UFar
  • PSTM Gathers
  • Stacking Velocity
  • Migration Velocity