The UK Marine Compendium

Horizon performs geophysical surveys to gather the detailed data required by design engineers and installers 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 and chartered 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