Seeing the Well as It’s Being Drilled: How At-Bit GeoTracker Is Changing Directional Steering
- Chris Ely
- Jan 27
- 2 min read
In horizontal drilling, the most important steering decisions are made between survey stations — yet traditional measurements only tell you where the well ended up, not what it was doing while you were drilling ahead.
That gap is exactly where At-Bit GeoTracker changes the game.
By combining continuous at-bit inclination with azimuthal gamma measurements, GeoTracker gives directional teams real-time visibility into wellbore behavior at the point where trajectory is actually being created: the bit.

Why Surveys Alone Don’t Tell the Full Story
Conventional surveys are:
discrete
sparse
taken after drilling has already occurred
They provide a checkpoint, not a live picture.
As a result:
short slide corrections
micro-builds and drops
formation-driven steering responses
are often hidden between survey points and averaged out in the reported trajectory.
That’s not a data problem — it’s a sampling problem.
Continuous At-Bit Inclination: What Changes
GeoTracker’s continuous at-bit inclination fills that blind spot.
Instead of waiting tens or hundreds of feet for the next survey, directional teams can see:
immediate response to slide orientation
inclination trends forming in real time
trajectory behavior stabilizing or drifting before it shows up in a survey
In the chart above, you can clearly see this effect:
The continuous at-bit inclination resolves short-interval builds and drops between surveys
The survey points confirm the overall trend, but do not capture the intermediate behavior
A moving average of the continuous data remains centered and stable, proving the signal is real — not noise
This is exactly what at-bit measurements are meant to do:show how the well is being shaped, not just where it landed.

Adding Azimuthal Gamma: Steering With Geological Context
Inclination alone tells you how the well is moving.Azimuthal gamma tells you why.
By pairing continuous inclination with azimuthal gamma:
directional teams can see formation changes in real time
steering decisions can be tied directly to geology
slides can be optimized for both trajectory and target quality
This combination is especially powerful in:
thin targets
structurally complex laterals
zones where small inclination changes have large TVD impact
Proven Stability at Depth
One of the most common questions operators ask is:
“Does it still work at the end of the well?”
The answer, based on real field data, is yes.
Across the lateral:
continuous at-bit inclination remains centered and stable
averaged values track survey inclination closely
there is no evidence of drift or degradation toward TD
Even where instantaneous at-bit data shows expected dynamic variability, the underlying trend holds — confirming measurement integrity at depth.
What This Means for Directional Teams
GeoTracker doesn’t replace surveys. It makes surveys more valuable by providing context between them.
With continuous at-bit inclination and azimuthal gamma, teams gain:
earlier detection of unintended builds or drops
confirmation of slide effectiveness while drilling
improved confidence steering between surveys
better understanding of true wellbore tortuosity
In short:
Surveys tell you where you ended up. GeoTracker shows you how you got there — in real time.
The Bottom Line
At-Bit GeoTracker delivers what directional drilling has been missing:
continuous inclination at the bit
real-time geological steering feedback
validated performance through the lateral
When decisions matter most — while drilling ahead — GeoTracker provides the visibility to steer with confidence.




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