SR-04Intermediate
Digital Rock & Core Image Analysis
Measures porosity, grain size and fracture density from core photographs and CT scans instead of from a description written twenty years ago.
Subsurface & Reservoir IntelligenceAI
PR-10FoundationalWave 2Domain
Sand Control Candidate & Design
In one sentence
Decides which wells will produce sand and sizes the gravel and screen for the ones that will.
The problem
Sand production erodes chokes and flowlines and eventually kills the well. Sand control is expensive enough that installing it everywhere is not viable, so the prediction of which wells need it carries real money.
How it works
Sanding potential is predicted from rock strength derived from sonic logs, drawdown history and depletion state. For wells that need control, gravel size and screen aperture are designed against the measured particle-size distribution using standard Saucier and Coberly criteria, with the full sensitivity shown rather than a single recommended size.
Data required
- Sonic and density logs for mechanical property estimation
- Particle-size distribution from sieve or laser analysis of formation samples
- Drawdown and depletion history
- Sand production history and failure records from offset wells
What you get
- Sanding risk per well and per interval with critical drawdown
- Gravel size and screen aperture design with the governing criterion named
- Completion recommendation: open hole, cased and perforated, or screen type
What it cannot do
The particle-size distribution is the controlling input, and a distribution measured on a drilled cutting or a poorly preserved core sample is not representative of the formation. Where no reliable PSD exists the design falls back to conservative field analogues, which is a more expensive completion than the well may need, and we say so explicitly rather than presenting it as an optimum.
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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