Because Techlog is proprietary software owned by SLB (formerly Schlumberger), official, up-to-date manuals are generally protected under user licenses. The Help Menu (
The official Techlog documentation suite is typically broken into several PDF volumes. Depending on the version (e.g., Techlog 2021, 2023, or 2025), you can expect: techlog manual pdf
Use precise strings when using Ctrl + F . Instead of searching for "porosity," search for "Density-Neutron crossplot porosity calculation" or the specific module name like "Quanti Elan." Because Techlog is proprietary software owned by SLB