SA Outeniqua/Bredasdorp | PGS

South Coast - South Africa - 2015

SA Outeniqua/Bredasdorp 2D GeoStreamer

Broadband 2D dataset over frontier margins of prolific basins and conjugate margin analogs
Website Map for Survey SAFR MC2D 2015
Extensive coverage of the shallow-water west Bredasdorp Basin, extending south into the deepwater Outeniqua Basin, provides new insight into the prospectivity of this frontier area, and uncertainties related to the identification and location of hydrocarbons.
Pre-rift plays in shallow-water basins, large syn-rift structures such as rotated fault blocks, rollover anticlines and draped sands over structural highs and basin floor fan and channel plays with bright amplitude reflectors.
Multi-sensor GeoStreamer data of unique fidelity, with the broadest possible seismic bandwidth and without compromise to prestack data quality, facilitate resolution of the complex overburden in great detail and helps to produce clearer images of deeper reservoir structures.

Specifications

Survey summary

  • Type: 2D
  • GeoStreamer
  • Size: 6050 km
  • Acquisition year: 2015
  • Completion of processing: 2016
  • Water depth: 200 - 4 000 m
  • Vessel: Atlantic Explorer
  • In partnership with: PASA

Acquisition parameters

  • Streamer length: 10 050 m
  • Shot interval: 25 / 37.5 m
  • Record length: 9 000 / 12 000 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 6.25 m
  • Fold: 134

Processing

  • P-UP generation
  • 2D surface related multiple elimination (SRME)
  • High resolution radon demultiple
  • Kirchhoff prestack time migration (PSTM)

Time products

  • Final Kirchhoff PSTM Stack
  • Angle stack near
  • Angle stack mid
  • Angle stack far
  • Angle stack u-far
  • PSTM gathers
  • Stacking velocity
  • Migration velocity

Additional products

  • Gravity
  • Magnetics