PGS18M08CGR | PGS

Central Graben - UK/Norway - 2018

PGS18M08CGR 3D GeoStreamer (In Processing)

Complementing the existing GeoStreamer PURE data in the CGR area
Website Map for Survey PGS18008CGR
Built on the existing GeoStreamer coverage providing a powerful tool for unlocking the petroleum potential in the CGR.
The survey is located in an area with a multitude of potential targets ranging from Permian to Paleocene in age, and with no shortage of adjacent infrastructure turnaround time from discovery to production can be quick.
Dense sampling and complementary Complete Wavefield Imaging allows to bring out the full potential of this area.

Specifications

Survey summary

  • Type: 3D (In Processing)
  • GeoStreamer
  • Geometry: Standard
  • Size: 478 sq.km
  • Acquisition year: 2018
  • Completion of processing: 2019
  • Shooting direction: 154.203 / 90 / 241.694
  • Vessels: Ramform Atlas, Ramform Vanguard, Sanco Swift

Acquisition parameters

  • Number of streamers: 3 / 6 / 10 / 12
  • Streamer length: 8100 / 4050 / 3150 m
  • Shot interval: 18.75 / 25 m
  • Record length: 9000 ms
  • Sample rate: 2.0 ms
  • Bin dimensions (Acquisition): 6.25 x 18.75 / 6.25 x 25 m
  • Fold: 108 / 40.5 / 81

Processing

  • P-UP generation
  • Full source deghosting
  • Full source and receiver deghosting (conventional data)
  • 3D surface related multiple elimination (SRME)
  • Wave equation 3D SRME
  • Internal multiple attenuation
  • HyperTomo velocity model building
  • Full waveform inversion (FWI)
  • Kirchhoff prestack time migration (PSTM)
  • Kirchhoff prestack depth migration (PSDM)
  • Beam depth migration
  • Q-migration
  • Separated wavefield imaging (SWIM)

Depth products

  • Final Kirchhoff PSDM stack
  • PSDM gathers
  • Velocity model
  • Final Kirchhoff PSDM angle stacks
  • Final beam PSDM angle stacks
  • PSDM angle stacks

Time products

  • Final post-stack time migration
  • Final Kirchhoff PSTM Stack
  • PSTM gathers
  • Stacking velocity
  • Migration velocity
  • Angle stacks