Convolution
This process convolves a volume with a wavelet, trace or volume of traces.
Applications include filtering seismic data, and combining a reflectivity series with a wavelet to generate a synthetic seismogram.
- Go to the Process tab, click the "+" button and search for Convolution.
- Click and provide a name for your convolution process.
- Select your volume from the Volume search box.
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Choose the Convolution type. The selectable types are:
- Matching trace for each input trace: Each trace in the primary input volume is convolved with a corresponding trace from the convolution volume. The convolution volume in this case should be the same type as the primary input volume.
- Single trace per gather: Each trace in a record in the primary input volume is convolved with a single trace from the convolution volume. The convolution volume in this case should contain only a single trace per record.
- Single trace: Each trace in the primary input volume is convolved against the single trace found in the convolution volume.
- Wavelet: Each trace in the primary input volume is convolved with the given wavelet.
- Select the Convolution wavelet from the search box.
Note: The selected wavelet must be a single wavelet - not a multi-wavelet field.
Convolution example below:
An example of filtering seismic using convolution:
In this example, a statistical wavelet was extracted from the mid-stack. Convolution is used to spectrally filter the gathers to the same bandwidth as the mid stack.
