Geothermal opportunities in Aquitaine. Geothermal opportunities in southern Aquitaine - Study of Upper Cretaceous, Dano-Paleocene and Eocene reservoirs. Geothermal potential of the Aquitaine basin. Confrontation between low energy geothermal resources and identified needs in Aquitaine. Geothermal energy in Aquitaine - Situation of achievements at the end of 1991 (inquiry report). Decision support instrument in the field of very low and low energy geothermal in the Aquitaine region - Atlas of the geothermal potential of aquifers - Final report. Assessment of the animation for the development of geothermal sectors in Aquitaine, for the period June 2015-October 2016 - Final report. Cartography of regulatory zones of minor importance geothermal with respect to geological risks, and complements to the atlas of the Aquitaine geothermal potential - Final report

A first study aimed at inventorying geological formations which would likely provide water at a temperature of at least 50 C, and with a flow rate of about 100 m³/h. This inventory has been performed through a systematic study of the main aquifers of the Aquitaine region. Structural maps and isobath maps have been established. A second document reports the study of reservoirs located in different geological formation (Upper Cretaceous, Dano Paleocene and Eocene). The third document reports a geothermal assessment of the Aquitaine basin in its different geological formations. For each of these formations, the main parameters related to reservoirs and sheets are presented (lithofacies, extension, depth, thickness, permeability, piezometry, communications, temperature and hydrochemistry). Another document reports a comparison between low energy geothermal resources and identified needs (heating consumptions, domestic hot water) in Aquitaine by exploiting maps and data regarding these consumptions and aquifer characteristics. A document reports the results obtained by an inquiry on exploitation data of 17 different geothermal drillings in Aquitaine (site locations and characteristics, geothermal resources, interveners, operation description sheets). The next document reports the development of an atlas of the very-low and low-energy geothermal potential of aquifers (principles, resources, types, and exploitation technologies, production in the world, Europe and France, support mechanisms and incentive procedures, regulatory context, geological and hydrogeological context, atlas design and maps). A report then proposes an assessment of animation activities for the development of geothermal energy in Aquitaine between June 2015 and October 2016. The development of maps representing various geological risks is finally reported in the case of minor importance geothermal (general principles, geological and hydrogeological context, geothermal potentials of surface aquifers, related risk cartography)