UC-111
Sustained Casing Pressure Diagnostics
Reads annulus pressure time series to detect sustained casing pressure, identify its source and interpret bleed-down curves.
14-22Build Duration
5-15xIndicative ROI
The Challenge
Sustained casing pressure affects 25-50% of wells in mature basins. Periodic manual readings miss what happens between visits, so the source is diagnosed by rule of thumb once the trend has escalated.
How It Works
- Ingests annulus pressure histories, bleed-down test records and well control incident data.
- Classifies build-up rate and pressure behaviour to rank leak severity and likely source.
- Operations gets an alert hours to days early with source, severity and response.
What It Removes
- Snapshot gauge readings taken weeks apart
- Rule-of-thumb guesses at the pressure source
- Bleed-down tests nobody interprets consistently
Input Data RequirementsAnnulus pressure histories, bleed-down test records, casing design and well geometry, historical well control incident data, mud weight programmes
Output FormatSustained casing pressure classification per annulus, source diagnosis, time-to-limit estimate, prioritised alerts, regulatory reporting record
“When a pressure builds now I know whether it is thermal or a tubing leak before I plan a bleed-down.”