Accés restreint aux usagers connectés
Titre : | Exploration d'Hélium et Hydrogène natif dans le Fossé Bressan |
Auteurs : | Clément MARJOT ; Clément MARJOT |
Type de document : | Mémoire d'initiation à la recherche |
Année de publication : | 2020 |
Concepts : |
BRESSE
HELIUM BEDROCK RESERVOIR CORRELATION HYDROGENE BASSIN SEDIMENTAIRE FOSSE D'EFFONDREMENT ROCHE MERE COUVERTURE PUITS |
Résumé : | This work was carried out with the aim of evaluating the area of the Bressan trench with a view to helium and hydrogen exploitation. The Bressan trench is a tertiary collapse trench, it extends to Dijon in the North and Lyon in the South. This trench is limited to the East by the Alpine overlaps of the Jura and to the West by the Massif Central. It is divided into three parts, from North to South: the Bresse Chalonnaise, the Bresse Louhannaise and the Bresse Burgienne. These parts are separated from each other by thresholds linked to Hercynian faults. The maximum thickness of the deposits is at the level of the town of Bourg-en-Bresse, this thickness reaches 3000m. The base of this basin dates to the Hercynian period, it is mainly composed of granites and gneiss. The geological history of the basin has been explained since the Triassic period. This study focuses on the geological constraints as well as the nature of the deposits at different locations in the basin. From this study, a synthesis figure was drawn summarizing the distribution of the deposits in the three parts of the Bresse trench. Following the completion of this study, it was decided to focus on the Bresse Burgienne because of the better potential of the cover and reservoir rocks. A census of exploration wells in the area was carried out so that correlations between these wells could be made. These correlations were intended to have a better overview of the reservoir rocks and cover rocks in the zone. These well data also provided figures on the porosity and permeability of the reservoirs. It was also possible to study lateral facies passages and understand the depositional systems in this basin. The information derived from these correlations made it possible to create a conclusion map excluding the least interesting parts of the Bresse Burgienne. |
Spécialité : | Géologie |
Numéro de promo : | 82 |
numéro MIR : | 885 |