275 QUAL I TÉ GÉOPHYSIQUEAPPLIQUÉE 10 Feasibility of monitoring cold fronts of geothermal doublets using 4D active electromagnetic techniques – a field trial in the Dogger play in the Paris Basin F. Dubois, A. Stopin, F. Bretaudeau and P. Wawrzyniak This project aimed to develop a methodology for imaging the “cold fronts” using the surface-to-borehole Controlled Source Electromagnetic Method (CSEM). To achieve this goal, a CSEM data acquisition campaign was being carried out on an operational geothermal doublet, using a surface-to-borehole measurement configuration. The downhole measurement tool (an induction © EDP Sciences, 2025 DOI: https://doi.org/10.1051/978-2-7598-3752-6.c010
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