ESB2009 | PGS

East Shetland Basin - UK - 2009

ESB2009 3D

High density 3D data provides improved resolution of exploration targets in the area
Website Map for Survey MC3D-ESB09
Covering the western edge of the prolific East Shetland Basin, this high density survey provides better imaging through better sampling of the main fields in particular Tern, Cormorant, Ninian, Lyell, Alwyn and Staffa fields among others (Middle Jurassic).
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).
This HD 3D dataset benefits from optimal target illumination, dense wavefield sampling and high resolution processing and imaging. Each consideration works in harmony, resulting in a high resolution of both structural and stratigraphic field components.

Specifications

Survey summary

  • Type: 3D
  • Geometry: Standard
  • Size: 1 600 sq.km
  • Acquisition year: 2009
  • Completion of processing: 2010
  • Water depth: 120/150 m
  • Shooting direction: 91.21
  • Vessel: Ramform Viking
  • In partnership with: TGS
  • Alternate ID: MC3D-ESB09

Acquisition parameters

  • Number of streamers: 16
  • Streamer length: 4 800 m
  • Streamer separation: 50 m
  • Shot interval: 18.75 m
  • Record length: 6 656 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 6.25 x 12.5 m
  • Bin dimensions (Processing): 12.5 x 6.25 m
  • Fold: 64

Processing

  • XT / Tau-P Deconvolution
  • Kirchhoff Pre-Stack Time Migration (PSTM)

Time products

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