【摘 要】
：
In order to obtain stable intervalQ factor, by analyzing the spectrum of monitoring wavelet and down-going wavelet of zero-offset VSP data and referring the spe
【机 构】
：
State Key Laboratory of 0il and Gas Reservoir Geology and Exploitation,BGP,Hunan Huasheng Energy Inv
【基金项目】
：
This work was sponsored by the National Nature Science Foundation of China
论文部分内容阅读
In order to obtain stable intervalQ factor, by analyzing the spectrum of monitoring wavelet and down-going wavelet of zero-offset VSP data and referring the spectrum expression of Ricker wavelet, we propose a new expression of source wavelet spectrum. Basing on the new expression, we present improved amplitude spectralfi tting and spectral ratio methods for intervalQ inversion based on zero-offset VSP data, and the sequence for processing the zero-offset VSP data. Subsequently, we apply the proposed methods to real zero-offset VSP data, and carry out prestack inverseQfi ltering to zero-offset VSP data and surface seismic data for amplitude compensation with the estimatedQ value.
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