Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Patent
1997-03-14
1999-07-13
McElheny, Jr., Donald E.
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
G06F 1900
Patent
active
059240482
ABSTRACT:
A system for producing a material balance solution for well patterns in a hydrocarbon reservoir is described that automatically optimizes the fluid allocation factors for each well used in determining the solution. The system automatically optimizes estimates for the allocation factors to be used in the material balance solution by randomly generating a first generation of allocation factor strings, each string in the generation assigning allocation factors to each of the wells in the reservoir. A fitness function value is determined for each of the strings by evaluating a fitness function, wherein the fitness function comprises the sum of the differences between computed and measured field pressures for each pattern, and the sum of the differences between target allocation factors and the allocation factors specified within the string for each well. A succeeding generation of allocation factor strings is produced according to a genetic algorithm. The process of determining a fitness function value for each of the strings is then repeated for the succeeding generation. The string having a fitness function value meeting a specified criteria is identified, wherein the identified string represents the optimized estimates of the allocation factors for the reservoir for use in determining the material balance solution.
REFERENCES:
patent: 5255345 (1993-10-01), Shaefer
patent: 5319781 (1994-06-01), Syswerda
patent: 5390282 (1995-02-01), Koza et al.
patent: 5541848 (1996-07-01), McCormack et al.
P. Wong et al./An Improved Technique in Porosity Prediction: A Neural Network Approach/pp. 971-980.
L. Diniz et al/Application of a Genetic Algorithm for Calibration and Structural Modification of Tank Model/pp. 11-20.
K. Lunn et al/Spatial Reasoning with Genetic Algorithms An Application in Planning of a Safe Liquid Petroleum Gas Sites/pp. 73-84.
Lawton, George, "Genetic Algorithms for Schedule Optimization", AI Expert, May 1992.
Ma Tuan D.
MacAllister Donald J.
McCormack Michael D.
Scherer Perry W.
Stoisits Richard F.
McCombs David L.
McElheny Jr. Donald E.
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