PGS19M04VIK | PGS

Viking Graben - UK/Norway - Many

PGS19M04VIK 3D GeoStreamer® (Processing)

Derisk future exploration and extend production of existing fields with GeoStreamerPURE
Website Map for Survey PGS19M04VIK
This survey covers key UKCS producing fields such as Beryl, Bruce and Nevis, and highlights significant near-field upside potential and exploration targets. Extending on to the East Shetland Platform, this dataset clearly defines the basin structure and images structures under the platform itself.
The prospectivity of the area is extremely diverse and prolific. Existing fields range from Triassic-Jurassic structural closures to Eocene injectites in the depocenters. Further to traditional targets, clearly imaged Devonian structures and potential exist throughout the platform.
This GeoStreamer true broadband dataset was acquired with 75 m cable separation, making it perfect for near-field exploration, or those seeking to increase recovery from existing fields. With AVO-compliant processing and excellent prestack fidelity, this an invaluable tool for future exploration.

Specifications

Survey summary

  • Type: 3D (Processing)
  • GeoStreamer®
  • Size: 2464.7 sq.km
  • Acquisition year: Many
  • Completion of processing: 2019
  • Water depth: 3592 m
  • Shooting direction: 090/270
  • Vessel: Ramform Valiant

Acquisition parameters

  • Number of streamers: 6-12
  • Streamer length: 3600-6000 m
  • Shot interval: 18.75-25 m
  • Record length: 7000-8100 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 12.5x6.25 & 12.5x125 m
  • Bin dimensions (Processing): 12.5x12.5 & 25x12.5 m
  • Fold: 80

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
  • 2D surface related multiple elimination (SRME)
  • High resolution radon demultiple
  • 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)
  • Anisotropic Kirchhoff prestack time migration (PSTM)
  • Least squares imaging (WEI)
  • Poststack time migration
  • Post-migration image optimization

Depth products

  • Final Kirchhoff PSDM stack
  • Final beam PSDM stack
  • PSDM gathers
  • Anisotropy and velocity models
  • 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
  • Migration velocity
  • Angle stacks