Hybrid Seismic Waveform Classification: Technique and Additional Features

The hybrid waveform classification introduces several additional features that aid the quality control and overcome limitations of conventional seismic attributes and unsupervised classification. These include the tools for interactive computation of waveform similarity map using semblance, and for interactive addition and subtraction of classes in the waveform map. The ability to add a user-defined class or subtract an existing class combines supervised classification with unsupervised approach to produce a hybrid classification map, greatly extend the usefulness of the tool. The key feature is to ensure that classes of prime interest, such as waveforms at well locations, are included in the analysis.