Abstract: The present invention relates to a method for developing a geological model from previously collected seismic data, including the steps of: sampling seismic data according to at least one set of traces of a predetermined gradient, each of which have sampling points; analyzing similarities between the seismic data around sampling points; determining connections between sampling points that belong to different traces on the basis of analysis; and forming a geological model that attributes, to each sampling point, a relative geological age that is calculated at least on the basis of connections related to the sampling points and the relative geological age of other sampling points in the vicinity of the trace that includes the sampling point.