Display seismic gather from raw SEG-Y file
Quality check of the input raw field data is very crucial. Before proceeding to any further processing steps, one should check the raw gathers. Read Gather from SEG-Y modules helps in achieving this. It works fast because it works with both Read SEG-Y traces and Open SEGY modules and doesn't require Sorting of the traces. Since the data is not sorted, it works with limitations like the user can specify few number of channels etc.
SEG-Y data handle - connect/reference to the Input SEG-Y data handle of Read SEG-Y traces module.
Traces per iteration - number of traces to read in one iteration. By default, 1 which means it will read/consider 1 trace only. Specify more number of traces per iteration to display more traces in the Output gather.
Start trace for read - number of the first trace in the bulk of traces that will be read. By default, 1 which means it will starting from trace sequence 1. If the user specifies trace 60 then it will start from trace sequence 60 onwards.
Load raw headers - loads raw trace headers if it is TRUE (Checked). By default, FALSE (Unchecked)
Skip - By default, FALSE(Unchecked). This option helps to bypass the module from the workflow.
Output gather - generates the Output gather vector which can be used as a reference/connection to any other module.
Trace headers - generates the output trace headers that are used as a connection/reference
Raw trace vector - generates the raw trace vector information
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In this example workflow, we display one raw gather with defined no of traces and start trace number.
Set the Parameters as shown below and Launch Vista items.
In the above parameters, we are displaying 40 traces starting from trace sequence 1.
In this below example, we are reading 80 traces with trace sequence starting from 28.
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YouTube video lesson, click here to open [VIDEO IN PROCESS...]
Yilmaz. O., 1987, Seismic data processing: Society of Exploration Geophysicist
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