UK Q15 2014 | PGS

Moray Firth - UK - 03/2014

UK Q15 2014 3D GeoStreamer®

Explore the prospective piper shelf with GeoStreamer
Website Map for Survey PGS14003
Covering the Witch Ground Graben, Piper Shelf and parts of the Fladen Ground Spur, covering Mesozoic and Paleocene fields (e.g. Piper, Saltire, Dumbarton), this dataset defines reservoir and structure with clarity, to push exploration onto the East Shetland Platform.
The main reservoir(s) were deposited during the Late Jurassic and Cretaceous rifting and sag phases. Paleocene subsidence resulted in the deposition of turbiditic reservoir sandstones (Montrose Gp). Paleozoic potential exists in structures and reflectors that are now clearly visible (e.g. Devonian).
AVO-compliant GeoStreamer technology provides a vastly improved image of the existing Paleocene and Jurassic targets, allowing for optimal field development and near-field exploration. Well-imaged Paleozoic reflectors at last allow the analysis of deeper targets in this frontier area.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: Standard
  • Size: 1 541 sq.km
  • Acquisition year: 03/2014
  • Completion of processing: 05/2015
  • Water depth: 130 to 150 m
  • Shooting direction: 90/270
  • Vessel: Ramform Atlas

Acquisition parameters

  • Number of streamers: 12
  • Streamer length: 6 000 m
  • Streamer separation: 75 m
  • Shot interval: 18.75 m
  • Record length: 7 680 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 Depth Migration (PSDM)

Depth products

  • Final Kirchhoff PSDM Stack
  • Final BEAM PSDM Stack
  • PSDM Gathers
  • Velocity Model
  • Near Angle PSDM Stack
  • Mid Angle PSDM Stack
  • Far Angle PSDM Stack
  • Ultra Far Angle PSDM Stack