Marine Seismic refraction and UMASW in dynamic mode, shallow and deep investigation (Pseudo 3D)

Tipo de intervención: Offshore
GeoXYZ - TOTALENERGIES
Marine Seismic refraction and UMASW in dynamic mode, shallow and deep investigation (Pseudo 3D)


The objective of the marine seismic campaign is to provide information about the P and S wave velocities of the local geology along a cable route between offshore wind turbines.
Depth investigation between 50 and 80 meters.
The purpose of the acquisition was to provide pseudo 3D data block and to integrate the geotechnical information available on site.
About 45 km of measurements in dynamic mode has been acquired and processed

  • Offshore seismic refraction (MSR)
  • Offshore seismic surface wave (UMASW).
  • Dynamic approach (equipment dragged on the seabed)
  • High resolution of the acquisition
  • Deep investigation of the acquisition
  • Production of a 3D data bloc of shear wave velocity variations
  • Offshore Windfarm
  • Soil investigation to characterize the foundation of the monopile of the turbine.
  • Cable route between monopile sites
  • Landfall cable
  • Horizontal Directional Drilling (HDD)