BYL2013M | PGS

Viking Graben - UK - 2013

BYL2013M 3D GeoStreamer®

Improved resolution and delineation for known fields and potential new discoveries
Website Map for Survey MC3D-BYL2013M
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 depocentres. 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 pre-stack fidelity, this an invaluable tool for future exploration.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: Standard
  • Size: 2 268.3 sq.km
  • Acquisition year: 2013
  • Completion of processing: 2014
  • Reprocessing: Yes
  • Water depth: 90 - 130 m
  • Shooting direction: 90/270
  • Vessels: Ramform Viking, PGS Apollo, Atlantic Explorer

Acquisition parameters

  • Number of streamers: 6/10/12
  • Streamer length: 6 000 m
  • Shot interval: 18.75 m
  • Record length: 7 168 ms
  • Sample rate: 2.0 ms
  • Bin dimensions (Acquisition): 6.25 x 25/6.25 x 12.5 m
  • Bin dimensions (Processing): 12.5 x 12.5 m
  • Fold: 80

Processing

  • Dual Sensor Wave Field separation and P-UP generation
  • 3D Surface Related Multiple Elimination (SRME)
  • High Resolution Radon Demultiple
  • XT / Tau-P Deconvolution
  • Kirchhoff Pre-Stack Time Migration (PSTM)
  • GeoStreamer wavefield separation
  • Optimal multiple attenuation
  • Bandwidth enhancing post-stack processing

Time products

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