The paper studied the issue of low frequency in shallow parts of cross-hole seismic reflection sections using imaging principle and deduced frequency variation factor.
本文利用成像原理对井间地震反射剖面的浅部频率变低问题进行了研究,导出了频率变化因子。
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The conventional inversion for time domain is unfavorable to cross-hole seismic data in depth domain.