Long-Horizon Hole-Cleaning Surveillance from Surface Drilling Data
Hole condition reflects accumulated cuttings generation, circulation, static time, rotation, pipe movement, and tight-hole evidence over hours, not one current sample.
Read article →Technical resources
Drilling engineering, explained from the data up.
Practical articles about drilling data architecture, statistics, engineering models, real-time systems, directional work, and applied AI.
Distinguishing Drillstring Washouts from Mud-Pump Failures in Real Time
Washouts and pump degradation can both reduce standpipe pressure. Flow-out behavior, hydraulic residuals, rig state, and missing evidence help separate them.
Read article →Designing Real-Time Drilling Alerts That Engineers Will Trust
A detector identifies a departure; an alert decides whether it is reliable, consequential, timely, and actionable enough to interrupt the right person.
Read article →Event Detection vs. Continuous Optimization: Two Different Drilling Analytics Problems
Event detection decides whether an abnormal condition warrants action; continuous optimization searches for a better admissible operating region. Their designs differ.
Read article →Separating Normal Drilling Variability from Meaningful Performance Changes
A meaningful change is a contextual departure with sufficient magnitude, persistence, and corroboration. A threshold crossing alone is not enough.
Read article →Distinguishing Sensor Faults from Real Drilling Process Changes
Separate sensor faults, real process changes, and bad model context by combining physics, supporting channels, operating state, persistence, and explicit uncertainty.
Read article →Using Physical Models as Real-Time Reference Signals in Drilling Analytics
Physical models are powerful dynamic references. Their residuals become useful only after verification, calibration, state gating, context checks, and uncertainty treatment.
Read article →Real-Time Torque and Drag Is a Calibration Problem, Not Just a Modeling Problem
Torque-and-drag surveillance needs a calibrated weight and friction baseline. Depth-localized residuals often reveal more than one fitted friction factor.
Read article →How Survey Interval Affects Wellbore Tortuosity Analysis
Tortuosity is calculated from a sampled trajectory. Survey spacing changes the geometry available to the metric, and interpolation cannot restore unmeasured detail.
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