DR-06Foundational
Real-Time Torque, Drag & Hydraulics
Compares what the string should weigh and how hard the pumps should work against what is actually measured, and flags the gap.
Drilling IntelligenceDomainAI
DR-03FrontierWave 3AIDomain
Permeability from Mud Loss Data
In one sentence
Mud that disappears into the formation is telling you something about how easily fluid moves through the rock. This reads that signal instead of discarding it.
The problem
Loss events are recorded as operational incidents and filed. The hydraulic information in them — rate, pressure, duration, depth — is rarely used quantitatively.
In naturally fractured carbonate fields, where permeability varies by orders of magnitude over short distances, that is a large amount of free subsurface data being thrown away.
How it works
Each loss event is inverted against a radial-flow model with the observed ECD, loss rate and exposure time to produce a permeability-thickness bracket rather than a single value. Results are reconciled against core, well test and log-derived permeability where those exist.
Output is delivered as an uncertainty range per depth interval, feeding the geomodel as soft data with an explicit confidence weight.
Data required
- Daily drilling reports and mud reports with loss volumes, rates and depths
- Real-time ECD or a calibrated hydraulics model to reconstruct it
- Openhole logs over the loss intervals
- Any core or well-test permeability in the field for calibration
What you get
- Permeability-thickness estimates with uncertainty bands, by depth interval
- A field-wide loss-event atlas linked to structural and facies maps
- RESQML-compatible soft-data export for the geomodelling team
What it cannot do
This is frontier work and we say so. The inversion is non-unique: a large loss into one open fracture and a moderate loss into a high-permeability matrix can produce the same signature. It is useful as a trend and as soft conditioning data, and it is not a substitute for a well test or a core plug.
Every capability page states a real limitation. If a vendor cannot tell you where their product stops, you are not being told the truth about where it starts.
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