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Material point method modeling in oil and gas reservoirs

United States Patent

June 28, 2016
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
A computer system and method of simulating the behavior of an oil and gas reservoir including changes in the margins of frangible solids. A system of equations including state equations such as momentum, and conservation laws such as mass conservation and volume fraction continuity, are defined and discretized for at least two phases in a modeled volume, one of which corresponds to frangible material. A material point model technique for numerically solving the system of discretized equations, to derive fluid flow at each of a plurality of mesh nodes in the modeled volume, and the velocity of at each of a plurality of particles representing the frangible material in the modeled volume. A time-splitting technique improves the computational efficiency of the simulation while maintaining accuracy on the deformation scale. The method can be applied to derive accurate upscaled model equations for larger volume scale simulations.
Vanderheyden; William Brian (Katy, TX), Zhang; Duan (Los Alamos, NM)
Los Alamos National Security, LLC (Los Alamos, NM), BP Corporation North America Inc. (Houston, TX)
13/ 649,655
October 11, 2012
STATEMENT REGARDING GOVERNMENT RIGHTS The United States Government may have certain has rights in this invention pursuant to Contract No. DE-AC52-06NA25396 between the United States Department of Energy and Los Alamos National Security, LLC for the operation of Los Alamos National Laboratory.