Offshore
Geophysical Survey

Horizon performs geophysical surveys to gather detailed data required by design engineers for the installation of offshore structures, subsea cables and pipelines. That data is used to:
  • Map seabed morphology and sub-seabed conditions
  • Profile geological features
  • Detect geohazards
  • Provide a seabed and sub-seabed reference for geotechnical investigations

We operate a fleet of owned vessels which are mobilised for geophysical surveys in the deep ocean, the continental shelf and the shallower nearshore areas.

Geophysical surveys are typically required for:

  • Site surveys for rigs or platforms
  • Windfarm developments
  • Route surveys for pipelines or cables
  • Geohazard and fault detection
  • High resolution seismic mapping
  • Geochemistry
Horizon also has a full range of geophysical survey equipment including:
  • Multi-beam and single-beam echo sounders
  • Analogue sub-bottom profilers (Pinger / Boomer / Sparker / CHIRP)
  • Digital sub-bottom profilers (2DHR / UHR)
  • Digital side scan sonars
  • Magnetometer and gradiometers
Our geophysical survey vessels can also be equipped with:
  • Remotely Operated Vehicles (ROVs)
  • Environmental sampling equipment

The vessels feature on-board processing and reporting facilities which allows for seamless integration of the data sets which are processed, interpreted, reported and charted offshore.

Horizon’s deliverables are tailored to meet a client’s specific requirements, and typically include hard and soft copies of:

  • Factual / interpretive and combined reports
  • AutoCAD / PDF charts
  • GIS deliverables to OGP/IMCA Seabed Survey Data Model (SSDM) or client specified geo-database schematic formats
Our SErVICES

Survey

Hydrographic Surveys
Offshore Geophysical Surveys
Construction Support
ROV Survey Inspections
Our SErVICES

Geotechnical

Offshore Geotechnical Investigations
Nearshore Geotechnical Investigations
Laboratory Testing
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