In order to generate a proper LAS header from within isologica, each data table in the project from which you want to generate a LAS file must have header fields. This can be done at time of LAS export, but can also be done prior to exportin. It is recommended best practice to enter well header data for every data table containing well data.
Open Table Metadata
Use the Project>Edit Data Tables command to open the data table viewer
Select and Inspect the data table metadata
1) Select each data table
2) Check the metadata section to see if LAS Header data has been entered
Enter LAS Header
1) Click the LAS Header button
2) Fill in the LAS Header fields that have been pre-populated for you