Lewis Hills | PGS

A Clearer Image

Canada - 2018

Lewis Hills 3D GeoStreamer®

Lewis Hills defines outstanding prospectivity between the Orphan and the Flemish Pass Basins
Website Map for Survey Lewis Hills - EL 1138
The 3D straddles the boundary between the Orphan and Flemish Pass Basin. The survey bridges established trends at the northernmost extent of the Grand Banks Kimmeridgian source rock super highway into the Orphan basin with prospective reservoirs from Lower Cretaceous to Lower Tertiary.
This Broadband imaging identifies all the necessary petroleum system elements contained in the Flemish Pass Basin discoveries.
Narrow azimuth GeoStreamer

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: Standard
  • Size: 3454 sq.km
  • Acquisition year: 2018
  • Completion of processing: 2019
  • Water depth: 1000 to 2000 m
  • Shooting direction: 90/270
  • Vessels: Ramform Hyperion, Ramform Sterling
  • In partnership with: TGS NOPEC

Acquisition parameters

  • Number of streamers: 14/16
  • Streamer length: 8100 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 post-stack time migration
  • Final Kirchhoff PSTM Stack
  • Angle stack near
  • Angle stack mid
  • Angle stack far
  • Angle stack u-far
  • PSTM gathers
  • Stacking velocity
  • Migration velocity