Calculation Method of Formation Quality Factor Based on Continuous Wavelet

doi:10.7657/XJPG20180615

Abstract

Abstract: Continuous wavelet is a kind of advanced time-frequency analysis method that can extract information about time and frequency of seismic data accurately. Using continuous wavelet time-frequency analysis method, seismic data can be decomposed into multi-frequency scale data, and the exponential decay factor for amplitude versus time in different frequency scale can be calculated, the slope of exponential decay factor versus frequency curve can be calculated by using regression analysis method and finally formation quality factor can be calculated. The applications of model, VSP, uphole survey and seismic data indicate that compared with the methods of conventional spectral ratio and frequency shifting, the calculation method of formation quality factor based on continuous wavelet is a kind of high-precision, high noise immunity method which can be used in formation quality factor calculation for various seismic data

CLC Number:

P631.4

JINAG Li, MAO Haibo, LIU Hongjie, WANG Xiaotao, XIAO Yanling. Calculation Method of Formation Quality Factor Based on Continuous Wavelet[J]. , 2018, 39(6): 1-1.

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Calculation Method of Formation Quality Factor Based on Continuous Wavelet

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