North Carnarvon Basin | PGS

Australia - 2015

North Carnarvon Basin 3D

This modern conventional 3D survey covers acreage in Outer Exmouth, Carnarvon basin
Website Map for Survey North Carnarvon Basin 3D
The modern conventional 3D survey was designed to image the deep Triassic fault blocks of the Outer Exmouth, Carnarvon Basin.
Class 3 AVO anomalies are the general play type pursued for gas in this Outer Exmouth province.
3D seismic data to better understand structural complexity of survey area.

Specifications

Survey summary

  • Type: 3D
  • Geometry: Standard
  • Size: 13 310 sq.km
  • Acquisition year: 2015
  • Completion of processing: 2015
  • Water depth: 1 000-2 000 m
  • Shooting direction: 090-270
  • Vessel: Sanco Swift & Sanco Sword
  • In partnership with: TGS

Acquisition parameters

  • Number of streamers: 10/12
  • Streamer length: 8 100 m
  • Shot interval: 18.75 m
  • Record length: 12 ms
  • Sample rate: 2 ms

Processing

  • 3D surface related multiple elimination (SRME)
  • High resolution radon demultiple
  • Anisotropic Kirchhoff prestack time migration (PSTM)
  • Kirchhoff prestack time migration (PSTM)

Time products

  • Final Kirchhoff PSTM Stack
  • Angle stack near
  • Angle stack mid
  • Angle stack far
  • Stacking velocity