2 results about "Multiple methods" patented technology

The application relates to the field of element fusion, and discloses a multi-method marine element fusion assimilation system based on multi-source observation data, which is used for solving the problems of limited adaptability, rigid fusion strategy and insufficient physical consistency of an existing single assimilation method. The system comprises the following steps: performing bias correction and quality control on multi-source original observation data to form a standardized observation set; independently generating corresponding single-method analysis fields and uncertainty fields by parallel operation of at least two assimilation methods; for each spatial grid point, generating a consensus field based on the numerical values of all single-method analysis fields, and calculating dynamic fusion weights according to the deviation degrees of the analysis values and the uncertainty of each method and the consensus field; and weighting and fusing the single-method analysis fields by using the weights. The application realizes adaptive fusion of the advantages of multiple methods, and significantly improves the precision and physical consistency of the marine analysis field.

A quantitative evaluation method for in-situ gas content and occurrence state in shale / coal formations based on multi-method coupling includes the following steps: 1. Establishing an in-situ analytical experimental setup; 2. Implementing the in-situ analytical experimental procedure; 3. Data processing and parameter summarization; 4. Evaluating in-situ gas content using the USBM method; 5. Evaluating in-situ gas content using the polynomial method; 6. Evaluating in-situ gas content using the ACF method; 7. Evaluating in-situ gas content using the MCF method; 8. Evaluating in-situ gas content using the isotope fractionation method (CIF method); 9. Comparative analysis and comprehensive evaluation of the results from multiple methods. This method establishes a novel approach for the quantitative identification of adsorbed / free gas based on the isotope fractionation mechanism, achieving accurate quantitative characterization of in-situ gas content and gas occurrence state in deep unconventional reservoirs. It provides a scientific basis for reserve assessment, selection of favorable targets, and optimization of development schemes, and is applicable to both deep shale gas and deep coal gas.