Uruguay | PGS

A Clearer Image

Pelotas Basin - Uruguay - 2012 - 2013

Uruguay 3D GeoStreamer®

A new and exciting frontier.
Website Map for Survey Uruguay MC3D GeoStreamer
Marine shales in the drift section can be invoked as potential top seals in light of the absence of a regional salt layer in the offshore basins.
GeoStreamer® is more than proving its ability to provide fully imaged broadband data in harsh operating conditions. Seaward dipping reflectors and Turonian source sequences consistent with those mapped on the Brazilian side of the border with DHI’s in the form of seeps also identified.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: Standard
  • Size: 15600 sq.km
  • Acquisition year: 2012 - 2013
  • Completion of processing: 2015
  • Water depth: 100 - 2600 m
  • Shooting direction: Phase A 127.4 / 307.4, Phase B 37.4 / 217.4
  • Vessel: Ramform Vanguard

Acquisition parameters

  • Number of streamers: 12
  • Streamer length: 7050 m
  • Streamer separation: 100 m
  • Shot interval: 25 m
  • Record length: 10000 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 6.25 x 25 m
  • Bin dimensions (Processing): 12.5 x 12.5 m
  • Fold: 70

Processing

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

Depth products

  • Final Kirchhoff PSDM stack
  • PSDM gathers
  • PSDM angle stack near
  • PSDM angle stack mid
  • PSDM angle stack far
  • Velocity model

Time products

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

Additional products

  • Demultiple Gathers