A Method of Calculating Relative Wave Impedance by Accurate Trace Integral
A wave impedance and high-precision technology, which is applied in the field of high-precision Dow integral calculation of relative wave impedance, can solve the problems of low longitudinal resolution of wave impedance, lack of low-frequency and high-frequency information, and low vertical resolution, so as to improve the success of oil and gas exploration rate, promote the effect of the application
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[0026] The present invention is further described in conjunction with accompanying drawings and examples.
[0027] Such as figure 1 Shown, the present invention comprises the following steps:
[0028] (1) Import conventional seismic data
[0029] The input raw seismic data is shown in Fig. figure 2 As shown, the format of the seismic data is the SEGY format. For a two-dimensional seismic line, the seismic data mainly includes seismic trace amplitude information at different positions, the abscissa is the position, and the ordinate is the time.
[0030] (2) Construct Robinson multi-level operator
[0031] Construct the Robinson multi-level operator according to the formula (1), and generally select the 3-level operator.
[0032] (3) Calculate formation emissivity coefficient
[0033] According to the convolution relationship of formula (1), the formation reflection coefficient is calculated.
[0034] (4) Calculate formation reflection coefficient integral.
[0035] Acco...
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