Innovative marine site investigation solution for use in geophysics, impact assessment or buried objects detection

The company was founded in 2015 by 2 experts in electromagnetics applied to geoscience. They develop instrumentation, theoretical calculations and modelling in marine electromagnetics for site investigation. The SME offers a complete and adapted solution to client needs from instrumentation, implementation to data processing.

Electromagnetism is used since a long time for land exploration, but the French SME has developed it for marine environment.
This electromagnetic measurements solution differs also from existing technologies for underwater investigation and enables to image what is not visible with conventional technologies.

The electromagnetic measurements can be passive or active:

- with passive measurements, marine electromagnetics is a key measurement for corrosion control, cables and infrastructures impact assessment, or the quiet detection of vessels.

- with an active signal, it is possible to localize objects such as archaeology, Unexploded Ordnance (UXO), pipelines or cables and to image the electrical resistivity of the medium for geophysical studies. The resistivity is the capability of materials to resist to a current flow.
Thus, marine resistivity imaging is an accurate technique to determine the geological structures of the marine substratum and the objects within.

The electromagnetic systems can be used both in sea and fresh waters. The system is composed of a fish (1.5m length, 20cm diameter) towed by a surface vessel, followed by a sensor cable. The instrument is in a dipole-dipole configuration, which allows good penetration and resolution. Electrical current is used as an electromagnetic source that enables to characterise the geophysical features, or to detect man-made objects present in the area.

The registered data by the sensors are displayed in real time on the ship and are saved on computer.

Marine electromagnetics can be used in several fields and markets:
- marine renewable energy
- oil and gas
- dredging
- objects localization for archeology, defense, construction (ferrous and non-ferrous)
- geophysics (including hard rocks)
- cables routes
- electromagnetic barriers

The company would like to find partner in those fields and markets to use the electromagnetics solutions for marine site investigations. The type of partnership will be a commercial agreement with technical assistance.