Abstract

This paper presents an approach to estimation of frequency-dependent attenuation of seismic waves that propagate in the earth’s subsurface. This approach is based on the waveform inversion of vertical seismic profiling data acquired in a borehole. The use of well log data (in particular, sonic and density logs) in the forward modeling routine makes it possible to separate two factors that cause frequency-dependent seismic attenuation. In particular, the inversion facilitates separation of 1D scattering versus inelastic absorption in the horizontally layered subsurface.

中文翻译：

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测井约束的VSP数据的波形反演分离频率相关散射和非弹性吸收

摘要

本文提出了一种估算在地下传播的地震波的频率相关衰减的方法。该方法基于在井眼中采集的垂直地震剖面数据的波形反演。在正演模拟程序中使用测井数据（尤其是声波测井和密度测井）可以分离导致频率相关地震衰减的两个因素。尤其是，反演有助于在水平分层的次表面中分离1D散射与非弹性吸收。