Interpex — Ix1d V350 |link|

You can manually enter data or import from .RES, .DAT, or .SND files. The graphical editor plots the apparent resistivity curve (log-log scale). Anomalous points can be flagged and removed using the "Data Smoothing" tool, which applies a moving average filter.

Its power lies in its simplicity: by forcing the geophysicist to think in layers, it builds intuition that fancy automated tools obscure. For field crews facing a long day of VES measurements, having IX1D v350 on a rugged laptop is like having a senior geophysicist in the truck—pointing out where to dig the next borehole. interpex ix1d v350

Verdict: remains the most trusted name globally, especially for hydrogeological and engineering projects requiring defensible interpretations. You can manually enter data or import from

Moreover, many regulatory reports and well-siting guidelines still accept robust 1D interpretations—provided they come from a trusted code like IX1D. Its power lies in its simplicity: by forcing

: Includes a unique feature to import resistivity well logs from ASCII files and reduce them into discrete layers by fitting segments to cumulative conductance.

For massive sulfide bodies (extremely conductive) or oxide zones (resistive), 1D soundings over a grid can outline drill targets. v350’s dipole-dipole array option is particularly useful for profiling lateral resistivity changes.

Buy the 30-day demo license first to test with your typical data. If your work is >80% 1D VES, go for it. If you need 2D profiling, look elsewhere.