Blank Log Components

There can be several explanations of why no data may appear within certain columns in a log design.

No data: If you don't have any data for that item in the log design, then those log entities will simply be left blank.;
Example: If your data file contains only lithologic descriptions while the log design also includes curve and bar graph columns, those columns will be left blank on the compiled log.
Name: An item in the compiled log will also be left blank if its data is flagged with a different name.
Example: If your Point Data column is labeled "Drilling Rate" while the corresponding curve column on the log's design is named "Drill Rate," the program will not be able to match the data to the log column. You'll need to edit the column name in the data file or the item's name in the log design.

Use the Data | Check Data against Log Design tool to show you a list of discrepancies between the data file and the log design.
Depth Range: If no data is being displayed at all in the compiled log, check the Start Depth and End Depth settings that you have established in the Compile window, being sure they include the range of the data in the data file.
Example: If the depth at the log top and log bottom displayed and accepted in the Compile dialog box are "0" and "100", respectively, yet your actual data starts at 2500 and extends to 3000, the program will not plot any data in the compiled log. Be sure the Start Depth and End Depth values are inclusive of the actual data.

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