Here, we investigate the role of the compaction for oil and gas generation in the Timimoun-Ahnet basin (Sahara, Southwest of Algeria). Firstly, a well logging analysis was carried out for seven boreholes in the region and helped to provide with the input data necessary for basin modeling with the TherMO’S software. Petrophysical and thermal properties for source rocks’ levels and reservoirs were then simulated considering the burial history all through the calculations.

The study highlights three main burial phases for source rocks and reservoirs deposits. The results obtained also revealed that the conditions provided to the organic matter were sufficient to propose the beginning of hydrocarbons generation prior to the Hercynian event. Oil and gas cracking were also favored by the Late Triassic thermal event.

Keywords : Timimoun – Basin Modeling – Burial – Petrophysics – Thermal – Oil – Gas.