Tablelands | PGS

Canada - 2018

Tablelands 3D GeoStreamer®

Positioned in the eastern part of Orphan Basin, the largest under-explored sub-basin of Grand Banks
Website Map for Survey Tablelands
The survey delineates the northernmost extent of the Grand Banks source fairway, with 3D coverage of the eastern Orphan Basin.
With potential producing reservoirs from Lower Cretaceous to Lower Tertiary above the Kimmeridgian source rock super highway. In conjunction with the Long Range survey to the south, Tablelands continues to identify play fairways north into the Orphan Basin.
Broadband imaging identifies all the necessary petroleum system elements contained in the very underexplored Flemish Pass Basin and discoveries to the east. Narrow azimuth GeoStreamer.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: Standard
  • Size: 8019 sq.km
  • Acquisition year: 2018
  • Completion of processing: 2019
  • Water depth: 2000m to 3000m m
  • Shooting direction: 90/270
  • Vessel: Ramform Hyperion
  • In partnership with: TGS NOPEC

Acquisition parameters

  • Number of streamers: 16
  • Streamer length: 8100 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 25 (12.5 x 12.5 Final) m
  • Fold: 81

Processing

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

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