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Title

Constant Q estimation from a seismic trace and its removal by non-stationary deconvloution

Pages

 Start Page 157 | End Page 170

Abstract

 Summary: The visco-elasticity of the earth causes dissipation of the energy of seismic waves when traveling through a medium, a phenomenon referred to as Seismic Attenuation. The attenuation property of a medium is described by a quantity called quality factor, or Q, which describes the amount of energy loss. The quality factor is related to the frequency of the propagation wave. In seismic data processing, our knowledge about this quantity is used to enhance the quality of seismic data, as an increase in the temporal resolution of the data, via absorption compensation tools. An exact formulation of Seismic Attenuation and its effect on the recorded data are unknown but there are simple models for describing the attenuation behavior approximately. The constant Q model relates a single value for Q to all frequencies in a trace. An important step in dealing with absorption compensation is the estimation of Q value. ...

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