Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Patent
1999-02-05
2000-04-18
Teska, Kevin J.
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
702 13, 73149, 39550023, G06F 1900, G06T 1750, G01V 100
Patent
active
060525207
ABSTRACT:
A method is disclosed of predicting a characteristic of a fluid-containing physical system such as a reservoir. The physical system is discretized to a plurality of gridcells. For each gridcell, nonlinear governing equations are constructed that are representative of fluid properties for each fluid. The nonlinear terms are linearized to derive linear equations at a current timestep. The linear equations are then solved to determine estimates of the solution. The estimated solution is then improved by a gridcell-by-gridcell computation wherein flows into and out of a particular gridcell are determined using linearized values of nonlinear terms in gridcells adjacent that particular gridcell. The improved solution is used to predict a property of a fluid in the physical system at end of the timestep. These calculation steps are repeated for a plurality of timesteps and the results are used to predict a property of the physical system and the fluids it contains as a function of time.
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Exxon Production Research Company
Frejd Russell W.
Lawson Gary D.
Teska Kevin J.
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