Springboard | PGS

Ceduna Sub-basin - Australia - 2015

Springboard 3D GeoStreamer®

True broadband data in the frontier Ceduna sub-basin offshore South Australia
Website Map for Survey Springboard GeoStreamer MC3D
The Ceduna sub-basin has become a hot spot for exploration activity following gazettal round awards to several major E&P companies and represents a massive and under-explored frontier area. A 40 km 2D well tie to Potoroo-1 was made during acquisition of Springboard MC3D.
The basin’s potential prospective fairways lie within the substantial Late Cretaceous deltaic successions.
The Springboard survey is true broadband Dual sensor 3D seismic data with pre-stack AVO/AVA fidelity. The Springboard and Ceduna surveys have been processed to depth to create one single merged ~20 000 sq.km MC3D volume.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: Standard
  • Size: 8 013 sq.km
  • Acquisition year: 2015
  • Completion of processing: 2016
  • Reprocessing: Yes
  • Vessel: Ramform Sovereign

Acquisition parameters

  • Number of streamers: 12
  • Streamer length: 8 100 m
  • Streamer separation: 120 m
  • Shot interval: 25 m
  • Record length: 9 216 ms
  • Sample rate: 2 ms

Processing

  • Dual Sensor Wave Field separation and P-UP generation
  • 3D Surface Related Multiple Elimination (SRME)
  • High Resolution Radon Demultiple
  • Anisotropic Kirchhoff Pre-Stack Time Migration (PSTM)
  • 3D Wave Equation Demultiple (wemult3D)

Depth products

  • Final Kirchhoff PSDM Stack
  • Angle PSDM Stack Near
  • Angle PSDM Stack Mid
  • Angle PSDM Stack Far
  • Angle PSDM Stack UFar
  • Velocity Model

Time products

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