Geoscan Arc
8 weeks
Rocky or flat plateau desert / Shallow Water / Urban
2D
VIBROSEIS HIGH PRODUCTIVITY + MARINE ACQUISITION
Geoscan Arc
After more than 50 years of exploiting geothermal resources to supply heating networks in metropolitan France, the deep geothermal energy sector is now at a pivotal moment where significant developments are necessary to achieve the objectives set at the national and local levels regarding the renewable energy mix. To achieve these objectives, it appears essential to improve knowledge of the subsurface at sites of interest, where geothermal energy appears to have strong potential and could meet energy needs identified at the surface.
ADEME, with technical support from BRGM, is implementing a subsurface exploration program in two key sectors for the development of deep geothermal energy in metropolitan France: the western and southern Parisian crescent, as well as the Arc syncline area, which is still poorly understood. These projects fall within Action 4A of the Geothermal Action Plan presented in February 2023 by the Minister for Energy Transition.
The exploration program for the two identified areas includes geological studies (laboratory and field), new geophysical acquisitions, processing of old lines, and the construction of reservoir models for the study areas based on the integration of the collected data. This exploration program includes the acquisition and processing of new data (geology and geophysics) as well as the reprocessing of old data. Quantitative interpretation techniques will also be deployed to obtain relevant and more constrained information on the petrophysical properties of the reservoirs. Processing must therefore allow for this quantitative work while preserving amplitudes, and modern acquisitions must contain a wide frequency spectrum.
