Predicts the mud weight window that keeps the hole open — not too light and it caves, not too heavy and it fractures.
The stability model built before spud is usually never updated, even though cavings, torque trend and hole cleaning are telling the team every hour how wrong it was.
Hole instability is the single largest contributor to non-productive time in deviated wells through shale sections.
A one-dimensional geomechanical model is initialised from offset logs and updated during drilling with cavings volume and morphology, ECD, torque and drag residuals, and downhole vibration. Bayesian updating widens or narrows the safe mud-weight window as evidence arrives.
The output is a window, not a number, and it is reported with the specific failure mode expected at each boundary.
Accuracy depends on the quality of the in-situ stress estimate, which in most brownfields is poorly constrained. Without at least one calibrated leak-off test in the section the window carries uncertainty wider than the operational margin, and the model should be used as a trend indicator only.
كل صفحة قدرة تذكر حداً حقيقياً. إن لم يستطع المورّد إخبارك أين يتوقف منتجه، فلم يُقل لك الحق عن أين يبدأ.
A kick is formation fluid entering the wellbore. Left unchecked it becomes a blowout. This watches eleven sensor streams and warns the crew minutes earlier than pit-volume alarms do.
Warns that the string is becoming hard to move, typically twenty to sixty minutes before it stops moving at all.
Finds the bad intervals in the log archive and reconstructs curves that were never run, so the field has a complete set to work from.
Recommends the mud formulation for the next section based on what worked in comparable sections, and what it cost.
Drafts the casing, mud and BHA programme for a new well from the field’s own drilling history, for an engineer to review.