Aurora Ichthys Merge MC3D | PGS

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Browse Basin - Australia

Aurora Ichthys Merge MC3D 3D GeoStreamer

New PSDM reprocessing of the Aurora and Ichthys MC3D surveys in the highly prospective Browse Basin.
Website Map for Survey Aurora Ichthys Merge MC3D
GeoStreamer acquired data newly reprocessed with the latest PSDM FWI workflow to create a contiguous, high resolution 3D volume over the Ichthys gas field and surrounding acreage within the Browse Basin, from the depocentre of the gas-dominated Caswell Sub-basin to the oil-bearing Yampi Shelf.
The prospective basin fairways lie within the Early-Middle Jurassic extensional phase, and the Late Jurassic-Cenozoic thermal subsidence phase.
True broadband GeoStreamer multisensor 3D seismic data combined with the latest 3D demultiple applications and PSDM FWI reprocessing workflow. Now part of the Browse Basin GeoStreamer PURE package.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer
  • Geometry: Standard
  • Size: 9320 sq.km
  • Acquisition year: 2011,2012
  • Completion of processing: 2019
  • Reprocessing: Yes
  • Water depth: 80-300 m
  • Shooting direction: 0/180
  • Vessel: Ramform Explorer

Acquisition parameters

  • Number of streamers: 10
  • Streamer length: 6000,7500 m
  • Streamer separation: 75100 m
  • Shot interval: 18.75, 25.00 m
  • Record length: 7168 ms
  • Sample rate: 2 ms
  • Bin dimensions (Processing): 12.5 x 12.5 m

Processing

  • P-UP generation
  • 3D surface related multiple elimination (SRME)
  • Wave equation 3D SRME
  • High resolution radon demultiple
  • Full waveform inversion (FWI)
  • Kirchhoff prestack depth migration (PSDM)

Depth products

  • Final Kirchhoff PSDM stack
  • PSDM gathers
  • Anisotropy and velocity models
  • Final Kirchhoff PSDM angle stacks

Time products

  • Final post-stack time migration

Additional products

  • Interpretation