Keyword Calculator
The Keyword Calculator allows the creation of new keywords that are calculated based on existing keywords and inserted into the header at a new offset.
How do I perform a keyword calculation?
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Select the Seismic Files to apply the new keyword to. Only keywords that exist in all selected files will be available. (It is often easier to use one file at a time.)
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In the Output Keywordsection of the dialog, define the parameters of the output keyword. Note: The new keyword values may overwrite other values in the header if the offset overlaps another value.
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Create your Calculation. Note: As an alternative, a previous calculation can be selected from the Most Recent Calculations list.
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Click
to create the new
keyword.
General Information
Seismic Files
Select the lines you wish to perform computations on.
Most Recent Calculations
This drop down contains a list of the most recent horizon calculations.
Select an item from this list to quickly redo calculations on new lines.
Output Keyword
Keyword Name: Select the name of a keyword to write as the output. Select from preset keywords or create a new keyword.
Byte Offset: Enter the byte offset location of the calculated keyword. Note: If data exists in the byte offset location selected it will be overwritten after the calculation.
Format: Select the format of the calculated keyword from the drop down. Note: To maintain decimal places this must be IEEE Float or IBM Float.
Calculation
Use the provided keypad to type in the horizon calculation.
Keywords:Use the drop down to enter a keyword into the expression.
Expression:Displays the final output computation expression.
Clear Expression:
Erase the existing expression to start over.
Also See
— MORE INFORMATION
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