CGR2015M | PGS

Central Graben - Norway - 2010/2011/2012/2013

CGR2015M 3D GeoStreamer®

A depth-imaged GeoStreamer dataset in the Central Graben
Website Map for Survey PGS15914 (MC3D-CGR2015M)
This reprocessed and merged volume provides broadband seismic coverage of the Gert Ridge over the Gertrud Graben, Piggvar Terrace and Mandal High to the Søgne Basin and Coffee Soil Fault. The surrounding area is mature and prolific with mostly oil discoveries.
The main petroleum system is characterized by Middle to Late Jurassic source rock and individual Jurassic fluvial-deltaic to shallow marine sandstones and Late Cretaceous to Paleocene Chalk and sandstones. These are sealed by intra Jurassic – Paleocene claystones.
This merged volume combines the first two GeoStreamer acquisitions in this region and is part of our growing broadband portfolio in the Central Graben. The survey is available in both time and depth.

Specifications

Survey summary

  • Type: 3D
  • GeoStreamer®
  • Geometry: Standard
  • Size: 7 617 sq.km
  • Acquisition year: 2010/2011/2012/2013
  • Completion of processing: 2014
  • Reprocessing: Yes
  • Water depth: 60/70 m
  • Shooting direction: 62/242
  • Vessels: Ramform Valiant, Ramform Viking

Acquisition parameters

  • Number of streamers: 6, 12
  • Streamer length: 6 000 m
  • Shot interval: 18.75 m
  • Record length: 7 168 ms
  • Sample rate: 2.0 ms
  • Bin dimensions (Acquisition): 6.25 x 18.75 m
  • Bin dimensions (Processing): 12.5 x 12.5 m
  • Fold: 80

Processing

  • GeoStreamer wavefield separation
  • Optimal multiple attenuation
  • Bandwidth enhancing post-stack processing

Depth products

  • 3D TTI anistropic Kirchhoff depth migration

Additional products

  • Gravity