Once you have your coordinates checked and loaded from SPS, Seg-P or ASCII files, you will apply those coordinates to your data with the Geometry Application Module. Connect your coordinate points and spread from your load Geometry module, and then connect your data handles and trace headers with original the field files and channel numbers from your load seg-y module. If you are using a seg-p or ASCII file, and your spread information is already contained in the trace headers of your data, go to the parameters tab and check off Spread from Trace Headers. Here you have the option to recreate your channel numbers, if there are problems with your original channel numbers in the seismic data. If your data contains auxiliary channels that you would like to retain, You can indicate that under AUX trace IDs, by adding them one by one, and indicating the trace IDs they fall under. Now we can check our geometry application. I’ve already added and re-arranged all the vistas from the module. This module lets you look at sources, receivers, and field files in your seismic data. Using the Slide command, we can quickly view all the shots, receivers and field files in quick succession. The speed for these slides is set here. Stop the slides with the red stop button. We can also navigate around to look at other sources, receivers or field files by clicking around on the various map gather or table views. You can click anywhere to sync all the views to that location. The module will alert you to potential problems with your geometry application in the table Errors vista. In this case, we have coordinate points for all our sources and receivers, so there are no errors to view. Problem shots and receivers can be removed at this stage. Right click on its entry in the shots or receiver table to kill it. The killed item will show up in the tables of changed points and killed sources or killed receivers. Items killed this way can be revived by right clicking and selecting Revive in the kill table. To kill individual traces in a gather, set your mouse control item to “Dead Traces” for the gather. Left click a trace to mark it as dead, or click and drag across several traces to mark them all as dead. To un-do your picked markers, right click, or right click and drag. You can save all your marked trace picks to an external file, or load in a previously saved file using these action commands in the Module manager, as well as clear all your existing picks. Use the same method to invert the polarity of traces, to mark auxiliary traces, or to mark traces as unused. These changes will not take effect until you output your traces to the save seismic module. At this stage, you may choose to take your new geometry directly into binning, using the binning 2D or binning 3D module. If you would prefer to save your output now, use the Save Seismic module to save your data to the internal format. To save seismic, get your Input Data Handle from your original load module, and select the updated trace headers from the
Geometry application module. Alternatively, you can save your geometry application by outputting seg-Y by using the action-command in the module manager. You can also output your unused traces as a seg-Y for QC purposes. Please check out our other tutorial videos, or visit us at Geomage.com


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