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- W2316148670 abstract "Based on zero-offset VSP data, we present improved amplitude spectral fitting and spectral ratio methods for interval Q inversion (IQI). Firstly we use the amplitude spectrum of down-going wavelet, which can eliminate variations of source wavelet, alleviate the impact of multiples, and obtain reasonable average absorption efficient. After polynomial fitting to average absorption coefficient, we convert average absorption efficient into interval Q values. Then we apply the new methods to real VSP data. Inverse Q filter is carried out to VSP data and near-well surface seismic data for amplitude compensation with the inverted interval Q value. Finally, we get the following conclusions: (1) the new IQI methods are reasonable, effective and stable; (2) the inverted interval Q and interval velocity have good correspondence, and the estimated Q value can be used for well-driven surface seismic high resolution processing." @default.
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- W2316148670 date "2014-01-01" @default.
- W2316148670 modified "2023-09-27" @default.
- W2316148670 title "Stable Methods of Interval Q Factor Inversion Based on Zero-offset VSP Data" @default.
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- W2316148670 doi "https://doi.org/10.3997/2214-4609.20141605" @default.
- W2316148670 hasPublicationYear "2014" @default.
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