Predict and control sand production to mitigate risk
Predicting and controlling sand production are critical components of choosing the right completions program and optimizing production. The Schlumberger Geomechanics group uses skilled interpretation to select the right sand management solution, to guide development decisions, to enable appropriate completions planning, and to optimize future reservoir management.
Research at Schlumberger laboratories has demonstrated that sand production is a two-step process: (1) Fail the rock, and (2) transport the product of failure (sand or rock fragments).
To predict sand failure during production, the Schlumberger Geomechanics group constructs a mechanical earth model (MEM) of the reservoir. A 1D model is used for basic risk analysis, a 3D model helps manage the entire reservoir and avoid risky well location, and a 4D model predicts the location and onset of sand production. This knowledge is captured in a Sand Management Advisor system that can predict sand failure at the production tunnel.
In addition, this solution can help
- recommend perforation location, avoiding weak intervals
- optimize perforation direction
- recommend perforation size
- predict critical drawdown pressure.
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