Download of Petrolog 14.0.28.1305 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The most popular versions of the software are 14.0, 10.7 and 10.6. The software lies within Business Tools, more precisely Project Management. The default filename for the program's installer is Petrolog.exe. The actual developer of the program is Crocker Data Processing.
From the developer:
Petrolog is a specialized log data management, petrophysical and imagelog analysis platform. The program allows you to create and manage a field or well based project. It also provides full multi-well processing capabilities and a map view tool which includes contouring capabilities on key petrophysical quantities.
You may want to check out more software, such as WinRock, which might be similar to Petrolog.