The File Extensions Database

.DLIS File Extension

  • Developer by: PPDM Association
  • Category: Database Files

What is an .DLIS file?

.DLIS is DLIS Well Log Data File

A DLIS file is a log file created by sensors that monitor petroleum wells, which are holes drilled in the ground for the purpose of exchanging petroleum between a subsurface reservoir and the surface. It contains a database of well measurements such as resistivity, porosity, sonic, and magnetic resonance measurements. DLIS files are saved in the Digital Log Interchange Standard used for interchanging well log data.

Sensors are placed in petroleum wells to monitor their activity. These sensors create log data files with the main purpose of determining if a formation contains commercial quantities of hydrocarbons.

One of the formats that well log data files are saved in is the DLIS format. This format was introduced in 1991 and is still used today for the interchange of well log data. The DLIS format separates data into layers, which consist of media, format, model, schema (descriptions of objects), and dictionary.

The DLIS file can be viewed by the PPDM data model. PPDM stands for Professional Petroleum Data Management, which is an association that creates baseline definitions and practices around Exploration & Production (E&P) data management.

You can also use DlisBrowser to view the full structure of DLIS files. DLIS files may be converted to the ASCII and LIS formats using Oilware EzTools.

Programs that open DLIS Well Log Data File
PPDM Data Model
Oilware EzTools

How to solve problems with DLIS files

  • Associate the DLIS file extension with the correct application. On :
    Windows: Right click on any DLIS file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.DLIS files". Mac: Right click (or Ctrl-click) the DLIS file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .DLIS is DLIS Well Log Data File. Because only the current version supports the latest DLIS file format. Search, therefore, e.g. on the PPDM Association manufacturer website after an available .DLIS is DLIS Well Log Data File update.
  • To make sure that your DLIS file is not corrupted or virus-infected, get the file again and scan it with antivirus software.