This action will prompt you to name the operator and save it to the project. When you are satisfied with the operator, click OK on the Spectral Analysis window. The time response of the inversion operator can be modified by adjusting the operator length and the taper length. Filtering the operator can remove spikes at the spectrum extremes that may be due to near-zero seismic frequency content. The operator frequency spectrum can be modified by adjusting the minimum and maximum frequencies. The Spectrum Threshold controls the threshold for computing the inversion operator: a threshold near 0 % may yield a better operator but also becomes unstable if some of the frequency components are 0 or near-zero amplitude. The Frequency Smoother applies a high-pass filter to the seismic data and creates a smoother inversion operator. The seismic frequency spectrum has two parameters that allow modification: the Frequency Smoother and the Spectrum Threshold. As well, the user is now able to modify the regression line in this crossplot. The individual wells in the AI log-frequency crossplot can now be highlighted.
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The low frequency component from the initial model can now be added to the high-frequency coloured inversion to yield the full geological spectrum.Ĭlick on the Run Spectral Analysis and Create Inversion Operator to create a new Coloured Inversion operator. Projects can now have multiple operators which may be used in different inversion runs. MSc Mechanical Engineering/Energy Systems.The Coloured Inversion has been up-dated and improved and allows much more flexibility in the parameter selection.
Qualitative and quantitative seismic methods.Lead and prospect risking, generation and assessment Clastic and carbonate experience.Interpretation, depth conversion, AVO Geological assessment.