Modified Fuzzy Inference Method for Heat Flux Inversion of Geothermal Reservoir Heat Source

Modified Fuzzy Inference Method for Heat Flux Inversion of Geothermal Reservoir Heat Source

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The key to determine the performance of fuzzy inference inversion is to select a reasonable domain.However, there is no universal method for selecting domain at present.According to the characteristics of heat flux of geothermal heat source and the research of fuzzy inference inversion process, this paper modified the fuzzy inference method from two aspects of domain setting and iteration termination condition.The recommended domain and selection scheme for solving the problem MAG SENSE of geothermal heat flux are given, and the modified fuzzy inference inversion method is applied to Rucheng geothermal field to verify the method.

The results showed that the modified fuzzy inference inversion method could overcome the problem that the solution of the traditional method fell into a cycle, and the relative error of the verification term was less than 5%.Compared with the traditional method, the retainer modified method greatly improved the computational efficiency, and the number of iterations was reduced to only 7.This method has a good application prospect for geothermal heat source inversion and resource evaluation.