HBR2012 | PGS

East Shetland Basin - UK - 2012

HBR2012 3D GeoStreamer®

Delineate and identify previously unresolvable structural and stratigraphic features
Website Map for Survey MC3D-HBR2012
Covering the western edge of the mature East Shetlands Basin, on a key area of the Brent Province, this survey targets the Heather, Heather South West and Broom fields (Middle Jurassic).
Main basin structural features were formed during the rifting period in Late Jurassic and Early Cretaceous. Existing hydrocarbon discoveries have been made in structural closures, targeting Middle Jurassic Brent Group. Additional potential exist within undrilled structural and stratigraphic traps.
HBR2012 provides the perfect platform for delineating the main prospectivity of the flanks of the East Shetland Basin. The improved bandwidth and AVO-compliance of the data allows for clear imaging of the main structural and stratigraphic features of the key Jurassic intervals.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: Standard
  • Size: 892 sq.km
  • Acquisition year: 2012
  • Completion of processing: 2013
  • Water depth: 120 - 160 m
  • Shooting direction: 90 / 270
  • Vessel: Ramform Challenger
  • Alternate ID: MC3D-HBR2012

Acquisition parameters

  • Number of streamers: 12
  • Streamer length: 6 000 m
  • Streamer separation: 75 m
  • Shot interval: 18.75 m
  • Record length: 7 168 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 6.25 x 18.75 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
  • 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