Patent ID: 11860326
Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. The fault characterization method for precise navigation of deep oil and gas based on image fusion as described in claim 2 is characterized in that the calculation method of the simulated seismic wavelet amplitude spectrum is:
locating a maximum value of seismic signal amplitude spectrum in a seismic wave reflection signal data and a frequency corresponding to the maximum value;
by fitting the maximum amplitude spectrum of the seismic signal and the simulated seismic wavelet amplitude spectrum through the least squares method, the coefficients of a parameter a and a polynomial H(f) are obtained, and corresponding frequency amplitude values of a fitted maximum value are obtained;
divide the maximum value of the seismic signal amplitude spectrum by the corresponding frequency amplitude value of the fitted maximum value, and then use a quotient to fit coefficients of the polynomial A(f).