EGY Reprocessed | PGS

Herodotus/West Egypt Shelf - Egypt - 2008

EGY Reprocessed 3D

Reprocessed legacy 3D data essential 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 presalt 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 are 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
  • Kirchhoff prestack depth migration (PSDM)
  • Beam depth migration
  • Anisotropic Kirchhoff prestack time migration (PSTM)

Depth products

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

Time products

  • Angle stack near
  • Angle stack mid
  • Angle stack far
  • PSTM gathers
  • Stacking velocity
  • Migration velocity
  • Shot gathers after navigation merge
  • Shot gathers after demultiple
  • CMPs after regularization
  • Final Kirchhoff PSTM offset gathers
  • Raw Kirchhoff PSTM stack
  • Final Kirchhoff PSTM angle sub-stack
  • Final Kirchhoff PSTM stack