Patent Document ID: 20120203515
Application ID: 13023076
Patent Flag: 0

Claim One:
1. A method of computerized simulation of a giant subsurface reservoir in a computer system of a plurality of data processors, including at least one central processing unit and at least one graphical processing unit, and an output display, the computerized simulation being an iterative linear solution of equations for reservoir parameters of a giant subsurface reservoir, the giant subsurface reservoir being simulated as a model partitioned into a number of cells arranged in an organized system of cells, the simulation further being based on geological and fluid characterization information for the cells of the reservoir, the method comprising the computer processing steps of: (a) receiving geological and fluid characterization information for the cells and the reservoir in the central processing unit; (b) initializing a postulated system solution matrix in the central processing unit for the equations for parameters of the reservoir cells for transfer to the graphical processing unit; (c) performing a preconditioned conjugate-gradient extrapolation in the graphical processing unit on the initialized postulated system solution matrix received from the central processing unit to determine reservoir parameters; (d) transforming in the central processing unit the results of the preconditioned conjugate-gradient extrapolation of the initialized postulated system containing reservoir parameters to the system solution matrix; and (e) forming an output display of the reservoir parameters of the cells at desired locations in the giant subsurface reservoir to simulate performance and production from the giant reservoir.