ANG Kwanza | PGS

A Clearer Image

Kwanza/Benguela Basin - Angola - 2012

ANG Kwanza 3D GeoStreamer®

26 400 sq. km of GeoStreamer data to support the exploration of Kwanza and Benguela Basins
Website Map for Survey ANG 2012 ppv6
This high quality 3D dataset in the prospective Angola offshore area provides excellent imaging of pre-salt structures and sediments.
Explore a detailed image of the pre-salt basement, syn-rift, and sag-phase sediments. Ideal for prospect identification and analysis, and enabling direct comparisons with the pre-salt of the prolific Brazilian margin.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: Standard
  • Size: 26 300 sq.km
  • Acquisition year: 2012
  • Completion of processing: 2014
  • Water depth: 200 - 3 000 m
  • Shooting direction: 180/360
  • Vessels: Ramform Valiant, PGS Apollo
  • In partnership with: Sonangol

Acquisition parameters

  • Number of streamers: 10
  • Streamer length: 8 100 m
  • Streamer separation: 100 m
  • Shot interval: 25 m
  • Record length: 10 000 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 6.25 x 25 m
  • Bin dimensions (Processing): 12.5 x 12.5 m
  • Fold: 81

Processing

  • 3D surface related multiple elimination (SRME)
  • High resolution radon demultiple
  • Beam depth migration
  • P-UP generation
  • Kirchhoff prestack time migration (PSTM)
  • Kirchhoff prestack depth migration (PSDM)

Depth products

  • Final Kirchhoff PSDM stack
  • Final beam PSDM stack
  • PSDM gathers
  • Angle Stacks
  • Final WEM PSDM Stack (Blk 25 & 40)
  • Final MAZ PSDM Stack (Blk 24)
  • Velocity model

Time products

  • PSTM gathers
  • Angle Stacks
  • Final post-stack time migration

Additional products

  • Gravity
  • Magnetics