EGY Reprocessed | PGS

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Herodotus/West Egypt Shelf - Egypt - 2008

EGY Reprocessed 3D

Reprocessed Legacy 3D data crucial for the upcoming license round
Website Map for Survey Egypt Legacy Data
The shallow survey covers the offshore part of the Matruh Canyon with the other survey being located in the Herodotus Basin.
The petroleum system from the Western Desert is expected to extend into the Matruh Canyon. In addition to the shallow gas potential there is also pre-salt structures and fan systems within the Herodotus Basin survey area.
Rejuvenation of Legacy 3D data through PGS' full integrity broadband processing. Both PSTM and PSDM products will be available.

Specifications

Survey summary

  • Type: 3D
  • Geometry: Standard
  • Size: 6062 sq.km
  • Acquisition year: 2008
  • Completion of processing: 2018
  • Reprocessing: Yes
  • Water depth: 100-3 000 m
  • Shooting direction: 99/279, 50/230
  • Vessel: Ramform Valiant
  • In partnership with: Egyptian Natural Gas Holding Company (EGAS)

Acquisition parameters

  • Number of streamers: 12/10
  • Streamer length: 6 000/8 100 m
  • Shot interval: 25 m
  • Record length: 8 192/9 216 ms
  • Sample rate: 2 ms
  • Bin dimensions (Acquisition): 25x12.5 m
  • Bin dimensions (Processing): 25x12.5 m
  • Fold: 80

Processing

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

Depth products

  • Final Kirchhoff PSDM stack
  • Final beam 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