Аннотация:It has long been recognized that including sub-basin crust and mantle lithosphere in reconstructions of thermal history of hydrocarbons reservoirs is an important step towards better constrained models. A significant increase in the depth range (e.q. from ca. 10 to ca. 100 kilometers), requires rethinking of the both forward and inverse modeling strategies. The moderate rise in number of model parameters related to the flexural isostasy is compensated by the major increase in number of observables to be fitted: the present-day thickness of the sedimentary layers. Unlike temperature estimates, the sediments thickness is much better constrain through space and time. Moreover, the evolution of basin geometry through time is required for the thermal forward model. Therefore, using the obligatory forward model input data as additional data set for model calibration parameters greatly reduced the paleo-heat evolution uncertainties.