SA Transkei 2018 | PGS

A Clearer Image

East Coast - South Africa - 2018

SA Transkei 2018 2D GeoStreamer

PGS' most recent survey over South Africa's east coast complements the Transkei Basin survey of 2014
Website Map for Survey SAFR MC2D 2018
Transkei Basin is a little-explored frontier area and this dataset provides valuable insight into its potential prospectivity, furthering understanding of the uncertainties related to the identification and location of hydrocarbons.
This is a highly prospective area with multiple potential mature source rocks and good quality reservoirs located in channels and fans in the overlying Late Cretaceous.
GeoStreamer multisensor technology provides high-quality images for greater clarity, accuracy and reliability.

Specifications

Survey summary

  • Type: 2D
  • GeoStreamer
  • Geometry: Standard
  • Size: 7365 km
  • Acquisition year: 2018
  • Completion of processing: January 2019
  • Water depth: 100-4000 m
  • Shooting direction: Various
  • In partnership with: PASA

Acquisition parameters

  • Number of streamers: 1
  • Streamer length: 8100 m
  • Shot interval: 25 m
  • Record length: 10 000 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 6.25 m
  • Bin dimensions (Processing): 12.5 m
  • Fold: 162

Processing

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

Depth products

  • Raw Kirchhoff PSDM gathers
  • Raw and final full stacks
  • Raw and final angle stacks x 4
  • Post migration bin positions
  • Depth velocity model
  • Velocity model data stretch depth to time
  • 3D/2D Velocity model tie

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
  • Angle Stack