DLIS (Digital Log Interchange Standard) is a binary industry format for well-log data. g-Space reads DLIS .dlis files through the same file dialog used to load LAS files, so DLIS curves arrive as ordinary well log curves. This topic covers importing DLIS into a g-Space project.

Purpose

Load well-log curves stored in the binary DLIS format into the project's wells. Standard one-dimensional curves are loaded like LAS curves; multi-dimensional (array) channels, such as an NMR T2 distribution, are read natively so their per-depth arrays are preserved. Import only - g-Space does not write DLIS.

Launching the import

Start the well-log import you normally use for LAS files. In the file dialog, set the file filter to DLIS (or All Files) and select one or more .dlis files. DLIS files are read through the same import as LAS, so no separate menu entry is needed.

[image: placeholder_The_well-log_file_dialog_with_the_file_f.png]

Step-by-step

1. Open the LAS / well-log import and, in the file dialog, choose the .dlis file(s) to load.
2. g-Space reads the DLIS frames and channels. Standard 1D curves are extracted as normal well log curves.
3. Multi-dimensional array channels (for example, an NMR T2 distribution) are read natively and attached to the well, keeping their two-dimensional per-depth shape.
4. Confirm the load. The imported curves appear under the target well, alongside curves brought in from LAS files.

[image: placeholder_Imported_DLIS_curves_listed_under_the_ta.png]

Notes

• DLIS import is read-only. There is no export back to DLIS; export well curves as LAS instead.
• Multi-dimensional (array) channels keep their full per-depth arrays; ordinary single-value curves load exactly as they would from LAS.
• DLIS support may be unavailable in some builds or platforms. If DLIS cannot be loaded in your installation, convert the file to LAS with an external tool and import the LAS instead.

See Also

Import LAS files | Well Data Formats