Download Tutorial on Seismic Reflection CDP Data Processing in the
Transcript
Compare the appearance of the data before and after the spherical divergence correction. For this, run the flow two times - with the active and "commented" Amplitude Correction module. (to “comment” the module right-click it with the mouse). As a result, two Screen Display windows appear on the screen, one of which contains corrected data, the other one – initial data. Spectrum spreading After the correction for spherical divergence, add the module Predictive Deconvolution to the flow. When the purpose of the predictive deconvolution is spectrum spreading, it is reasonable to set prediction gap equal to one sample, to select the filter length close to the length of the wavelet and to assign the window for the calculation of the deconvolution operator in such a way that it contains the target reflections. Basing on these considerations, some initial parameters can be assigned as follows: 28