Extracts sub gather
This procedure gives possibility to extract sub gather according to the chosen parameters.
Input gather - connect/reference to the Output gather (seismic data).
Selection type { By sorted headers, By selected headers } - Select the available options from the drop down menu. By default, selected headers
Selection type - By sorted headers
Sorted headers - connect/reference to the output sorted headers
Seq. gather increment - Number of gathers to be read per iteration. Default: 1
Sequential gather number - Current iteration number. Default: 1
Selection type - By selected headers
Selected trace headers - connect/reference to the selected trace headers
Reset start record index - This function gives possibility to reset record index. Record index for each gather will be renumbered from 1. Default: False
Skip - By default, FALSE(Unchecked). This option helps to bypass the module from the workflow.
Output gather - generates output gather as vista item as well as output gather for saving the data.
Trace headers - generates output trace headers
There is no information available for this module so the user can ignore it.
In this example workflow, we are extracting a small portion of the seismic gather by using selected trace headers.
Selection type - By selected trace headers
We've included select traces inside the seismic loop. Output from this select traces will be connected/referenced to Extract sub gather module.
Inside the select traces parameters, we've selected FFID 181 and Channels from 1 to 400.
Output gather from the select traces will have CHANNELS only from 1 to 400.
There are no action items available for this module.
YouTube video lesson, click here to open [VIDEO IN PROCESS...]
Yilmaz. O., 1987, Seismic data processing: Society of Exploration Geophysicist
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