Free Tools
Free Tools for Geosteering and Directional Drilling
Free to use, no sign-up, and nothing you enter leaves your browser. The same calculations GeoMaster runs across a full survey set as the well is drilled.
LAS File Viewer
Open a LAS 1.2 or 2.0 well log and plot gamma ray, resistivity, density, neutron or any curve. Files never leave your browser.
Survey Calculator
Paste a full survey and get TVD, north, east, vertical section, DLS, build, turn and tool face for every station, exactly as GeoMaster calculates them.
Dogleg Severity Calculator
Dogleg angle and severity from two survey stations, by the minimum curvature method. Metric and imperial.
MD to TVD Converter
True vertical depth from two survey stations using minimum curvature, including the ratio factor most simple converters omit.
Apparent Dip Calculator
Convert between true stratigraphic dip and the apparent dip seen along a wellbore section, in either direction.
WITSML Credit Estimator
Estimate monthly WITSML credit consumption from your pull interval and channel count, and see which plan covers it.
The full picture, not one calculation
GeoMaster runs these calculations across your whole survey set as the well is drilled, alongside model-based and stratigraphic geosteering and the DrillTracker dashboard.