The aim of this work is to carry out a study of fractured reservoirs in an extensive context. The Atlantic margin of Morocco has been chosen for this study. The work is being carried out in the Géoressources laboratories of the ENSG in Nancy, in cooperation with the Office National des Hydrocarbures et de Mines (ONHYM), under an agreement between the Office and the Université de Lorraine. The Precambrian basement of the Ifni Atlantic margin (offshore domain) and the Sidi Ifni buttonhole (onshore domain) formed our study area.