PGS15004 Q8 | PGS

East Shetland Platform - UK - 2015

PGS15004 Q8 3D GeoStreamer®

De-risk frontier exploration with GeoStreamer
Website Map for Survey PGS15004
Covering the Mariner and Skipper fields and portion of the East Shetland Platform further west, this survey offers full 3D AVO-compliant coverage of this frontier area to facilitate future exploration; tracking Paleocene, Jurassic and Paleozoic targets.
The East Shetland Platform represents a stable area in the Northern North Sea during the major rifting phase. The main fields east of this area are within a thick Paleocene interval overlying interesting Paleozoic structures. Additionally prospectivity may exist in thin Jurassic-Cretaceous veneers.
High resolution survey designed to map the migration pathways from traditional Graben areas up onto the platform and into new frontier exploration territory. With Geostreamer deeper imaging, Palaeozoic strata is being revealed, with the hint of deeper Devonian plays to invigorate exploration.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: Standard
  • Size: 3 586 sq.km
  • Acquisition year: 2015
  • Completion of processing: 2016
  • Water depth: 130 m
  • Shooting direction: 0/180/90/270
  • Vessels: Ramform Challenger, Ramform Vanguard

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