ESB2011 | PGS

East Shetland Basin - UK - 2011

ESB2011 3D GeoStreamer®

Superior fault interpretation and structural analysis
Website Map for Survey MC3D-ESB11
Covering the western edge of the prolific East Shetland Basin, this survey specifically targets the Hudson, Western Isles, Cladhan Middle and Upper Jurassic fields.
Main basin structural features were formed during the Late Jurassic rifting. The Basin prospectivity is dominated by the occurrence of pre rift, Triassic and Middle Jurassic sand prone reservoirs within clearly defined structural closures (e.g. Brent Group).
True broadband GeoStreamer technology has provided clearer images allowing better fault interpretation and structural analysis. The improved frequency content of the survey produces an improved lateral continuity of sedimentary bodies, allowing for good fluid discrimination during inversion.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: Standard
  • Size: 505 sq.km
  • Acquisition year: 2011
  • Completion of processing: 2012
  • Water depth: 140 - 180 m
  • Shooting direction: 339 / 159
  • Vessel: PGS Apollo
  • Alternate ID: MC3D-ESB11

Acquisition parameters

  • Number of streamers: 10
  • Streamer length: 7 050 m
  • Streamer separation: 75 m
  • Shot interval: 18.75 m
  • Record length: 6 656 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 6.25 x 18.75 m
  • Bin dimensions (Processing): 12.5 x 12.5 m
  • Fold: 94

Processing

  • Dual Sensor Wave Field separation and P-UP generation
  • 3D Surface Related Multiple Elimination (SRME)
  • 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