Patent ID: 7043367

Claim:
A method for forming a diffusive type deterministic model for simulating multilithologic filling of a sedimentary basin, comprising: from known field data relative to an architecture of the basin and measured data or seismic data, forming a set of input data relative to an accommodation available through subsidence and eustasy, to a supply of fluvial or marine sediments and transportation thereof, and to physical parameters of lithologies, by an iterative process involving gridding the basin into grid cells of regular dimensions, modelling according to an explicit finite-volume scheme with constant time intervals, to simulate flow of each lithology deposited on each grid cell; and comparing simulation results with the data and modifying the set of input data step by step by inversion; and wherein for each time interval and for each lithology modelling by deterministic equations respectively a) a mean of a transportation processes acting on a permanent and continuous basis for a longer term, b) a mean of transportation processes acting on a permanent and continuous basis for a shorter term, and c) a mean of a transportation processes acting in a catastrophic way for a term less than the shorter term; and determining a resulting stratigraphy of the basin by accounting for the mass conservation.