US 12,298,465 B2
Method for determination of real subsoil composition
Gérard Massonnat, Pau (FR); David Ledez, Pau (FR); and Jean-Paul Rolando, Pau (FR)
Assigned to TotalEnergies OneTech, Courbevoie (FR)
Appl. No. 17/253,556
Filed by TotalEnergies OneTech, Courbevoie (FR)
PCT Filed Jun. 20, 2018, PCT No. PCT/IB2018/001633
§ 371(c)(1), (2) Date Dec. 17, 2020,
PCT Pub. No. WO2019/243865, PCT Pub. Date Dec. 26, 2019.
Prior Publication US 2021/0270997 A1, Sep. 2, 2021
Int. Cl. G06F 30/20 (2020.01); G01N 33/24 (2006.01); G01V 9/00 (2006.01); G01V 20/00 (2024.01)
CPC G01V 9/007 (2013.01) [G01N 33/24 (2013.01); G01V 20/00 (2024.01)] 7 Claims
OG exemplary drawing
 
1. A computer-implemented method enabling industrial extraction of hydrocarbons from a hydrocarbon reservoir, comprising:
receiving, by an input interface of a computer, an unmeshed model representing real subsoil forming the hydrocarbon reservoir;
determining a sediment trajectory in said model, wherein determining the sediment trajectory comprises determining a displacement of particles in said model by superimposing:
a deterministic term that is defined based on observed data with respect to the real subsoil, and
a stochastic term parametrized at least by the observed data, the stochastic term comprising a superposition of a meandriform term and a random perturbation;
based on the sediment trajectory, determining at least one parametric surface describing a sediment formation in said model; and
based on the least one parametric surface, meshing the sediment formation in said model;
wherein the method further comprises:
determining at least one associated surface as a function of the at least one parametric surface, said associated surface describing an associated geological formation associated with the sediment formation, wherein the associated geological formation has rules of meshing independent of rules of meshing of the sediment formation;
based on said at least one associated surface, meshing the associated geological formation;
determining a composition of the real subsoil based on the meshed sediment formation and the meshed associated geological formation;
outputting, by an output interface of a computer, a complete model representing the composition of the real subsoil; and
locating, at a location in the real subsoil, a well for extraction of hydrocarbons from the hydrocarbon reservoir, wherein the well is located based on the composition of the real subsoil.