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Prospection des hydrocarbures par une approche intégrée de pétrographie, géochimie et modélisation de la transformation de la matière organique : analyse et reconstitution de l'histoire thermique des Bassins Carbonifère Central des Asturies (Espagne) et Sabinas - Piedras Negras (Coahuila, Mexique)

Abstract : The Central Asturian Coal Basin shows that the coals have been formed in a swamp environment with a vitrinite-rich facies, a lower sulfur and ash contents, a high water table and a wet climate. The coal rank, vitrinite reflectance and volatile matter content indicate a N-S trend which is correlated with the calculated paleotemperatures. These data suggest the influence of two thermal gradient. The maceral evolution was observed in the solid residues. METAGAZ-1D was used to simulate the hydrocarbon production. The Sabinas - Piedras Negras Basin shows a measured heat flux decrease. The determined thickness of the deposits indicates a foreland evolution during the Later Cretaceous and Early Paleocene. The simulated thermal history would indicate a thermal anomaly which is linked to the intrusive bodies. The horsts placed toward the east appear to have controlled the sedimentation and diminished the quantities of the deposits. The hydrocarbon generation was provoked by burial, and the thermal anomaly did not induce an increase in the hydrocarbon production.
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https://hal.univ-lorraine.fr/tel-01746773
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Noé Piedad-Sanchez. Prospection des hydrocarbures par une approche intégrée de pétrographie, géochimie et modélisation de la transformation de la matière organique : analyse et reconstitution de l'histoire thermique des Bassins Carbonifère Central des Asturies (Espagne) et Sabinas - Piedras Negras (Coahuila, Mexique). Sciences de la Terre. Université Henri Poincaré - Nancy 1, 2004. Français. ⟨NNT : 2004NAN10155⟩. ⟨tel-01746773⟩

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