The Geo People
Case studies | The Geo People
3D towed streamer and undershoot, Gabon

Client: Major oil company
Topic: Seismic and navigation processing QCs, acquisition QC, MMO and PAM for 3D towed streamer seismic


  • Provided client representatives, MMOs PAM operators and PAM equipment
  • Conduct a 3D towed streamer seismic survey


  • Undershoots of two platforms offshore Gabon
  • Survey area situated in the close proximity to national park
  • Shallow and deep water
  • Fishing
  • Humpback whales would be migrating to the area


  • Seismic and navigation processing QC and liaison between client and contractor
  • MMOs, PAM operators and PAM equipment to monitor cetaceans and turtles and shooting operations
  • Interim and final reports for seismic processing QC, acquisition QC, navigation processing QC, MMO and PAM
  • Seismic processing supervision post seismic acquisition
  • Two platforms to be undershot resulting in several single boat close passes, requiring permission from the platforms
  • Fresnel zone binning
  • MultiSeis Project Manager software was used for production and timing logging and reporting as well as MultiPlot/SurveyWide
  • Seismic data QC processing using ProMAX software to produce a suite of standard quality control products
  • Four marine mammal observers were deployed so that there was continuous observation, two of which were passive acoustic monitoring observers using PAM equipment supplied by The Geo People
  • Fishing was common during part of the survey and the MMOs helped spot fish aggregation devices in the water


  • Safe acquisition of acceptable seismic and positioning data
  • Fully supervised seismic data processing post acquisition all the way through to the final processed dataset
  • No incidences of non-compliance to the JNCC guidelines
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