PGS18M08CGR | PGS

Central Graben - UK/Norway - 2018

PGS18M08CGR 3D GeoStreamer

Complementing the existing GeoStreamer PURE data in the CGR area
Website Map for Survey PGS18M08CGR
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
  • GeoStreamer
  • Geometry: Standard
  • Size: 1255 sq.km
  • Acquisition year: 2018
  • Completion of processing: 2019
  • Shooting direction: 154.203 / 90 / 241.694
  • Vessel: Ramform Atlas

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)
  • Convolutional 3D SRME
  • Wave equation 3D SRME
  • High resolution radon demultiple
  • Internal multiple attenuation
  • HyperTomo velocity model building
  • Full waveform inversion (FWI)
  • Kirchhoff prestack depth migration (PSDM)
  • Beam depth migration
  • Separated wavefield imaging (SWIM)
  • Least squares imaging (WEI)

Depth products

  • Final Kirchhoff PSDM stack
  • Final beam PSDM stack
  • PSDM angle stack near
  • PSDM angle stack mid
  • PSDM angle stack far
  • PSDM gathers
  • Anisotropy and velocity models
  • Velocity model
  • Final Kirchhoff PSDM angle stacks
  • Final beam PSDM angle stacks
  • PSDM angle stacks