Method for updating a stratigraphic model of a sedimentary basin based on measurements

摘要

The present invention relates to a method for updating a stratigraphic model based on measurements made on the basin. The method according to the invention comprises the following steps: i) at least a first spatial distribution of the values of an attribute representative of the stratigraphy of the basin is determined, and a classification method is applied to transform this first spatial distribution into a first classified image; ii) a stratigraphic simulation is carried out with first parameter values of said simulation, a second spatial distribution of the values of said attribute is deduced therefrom and the same classification method is applied in an identical manner to determine a second classified image; iii) determining a distribution of local dissimilarities between said first and second classified images, and modifying the values of at least one of the parameters of the stratigraphic simulation so as to minimize an objective function formed from at least the distribution of local dissimilarities; iv) the stratigraphic model is updated by performing at least one stratigraphic simulation with the values of the modified simulation parameters. Figure 9 to publish