Fonts Bouillants, prospecting for helium and CO2 in the south of Nivernais, France.

The company 45-8 Energy was granted an exclusive exploration permit (PER Fonts Bouillants) in the south of Nivernais for the exploitation of CO2 and helium. The characterisation of the gas reservoir is mainly based on production tests in several wells carried out by Solexperts France 2021 and 2022.

The contribution of Solexperts

  • The execution of production tests in boreholes, including the supply and implementation of test equipment and data acquisition devices for real-time analysis of the measurement data.
  • Automated monitoring of the surrounding wells during and after the tests, transfer of the measurement data to an internet visualisation platform.
  • Supply and implementation of SysMoG® dissolved gas probes in two boreholes with transmission of the acquired data to an internet visualisation platform.
Production test equipment
Data Acquisition
real time data analysis

Automated monitoring of surrounding works

Well equipment
Well monitoring
Borehole monitoring

Measurement of dissolved gases in boreholes 

Installation of SysMoG® probes in 2 boreholes to measure dissolved gases in water. Joint infrared and Raman measurements by GeoRessources over several months.

Borehole equipment
Gas analysis equipment at the surface
Data (source GeoRessources)

Alain Laurent


Hydro-tests in deep boreholes, Hydrogeological instrumentation and tests / Geothermal projects

T +33 (0) 6 29 25 67 79

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Yanick Lettry

Geologe / Hydrogeologist CHYN

Hydrogeological instrumentation and tests /
QM hydrogeological Instrumentation / Geochemistry

T +41 (0) 44 806 29 53

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Médéric Piedevache

Engineering Geologist ENSG

Member of the extended executive board
Branch manager Nancy, France

T +33 (0) 3 83 94 04 50

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Karam Kontar

Engineering Geologist / Hydrogeologist CHYN

Member of the extended executive board
Division Manager Hydrogeology / Hydrogeological instrumentation and tests / Hydro-tests in shallow and deep boreholes

T +41 (0) 44 806 29 85

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Esther Huguenot

Engineering Geologist ENSG

Project leader

T +33 (0) 6 88 63 88 83

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