Patent Document ID: 9279905
Application ID: 14348484
Patent Status: 1

Claim One:
1. A method for modeling an area of the subsoil, comprising: constructing, by a processor, a training image on a first three-dimensional grid of cells, the training image giving, for each cell of the first grid, a respective type of geological facies assigned to said cell, the types of facies including a first family of facies and a second family of facies that are less permeable than the facies of the first family; obtaining, by the processor, well data based on observations conducted in a plurality of wells drilled in the area of the subsoil, the well data referring to a second three-dimensional grid of cells having a morphology is adapted to estimated geological horizons in the area of the subsoil, the well data including: types of geological facies respectively estimated from the observations for the cells of the second grid located along the wells; and inter-well connectivity data indicating at least one group of cells of the second grid located along multiple wells, with hydrodynamic communications having been observed between said cells; in an initialization image defined on the second grid, assigning, by the processor, the types of facies included in the well data to the respective cells of the second grid located along the wells; for each group of cells indicated by the inter-well connectivity data; selecting, by the processor, a thumbnail in the form of a set of connected cells of the first grid in which cells corresponding to the cells of said group on the second grid exhibit the same types of facies in the training image as the respective cells of said group in the well data, and belong to a connected subset of cells for which the types of facies in the training image are in the first family, and in the initialization image, assigning, by the processor, the types of facies given by the training image for the cells of the selected thumbnail to the respective cells of the second grid to which said cells of the selected thumbnail correspond; and constructing, by the processor, on the second grid, an image that models the area of the subsoil, by propagation from the initialization image by a multipoint geostatistical technique using the training image.