Synthetic Seismograms From Continuous Velocity Logs*

Abstract

In this paper a method of calculating synthetic seismograms from continuous velocity logs (CVL) is presented and described in detail.The seismic velocities on the CVL are frequently and rapidly changing. Therefore a seismic field-record consists of a great number of reflections with different sign and amplitude.The sum of all reflections forms the seismogram. The first part deals with some relations between the log, the reflection-layers, and the normal field-record, with special emphasis on the influence of the seismic amplifier. Then several assumptions are made for the construction of the synthetic seismograms. Finally some examples and applications are given.