Deepwater Pre-Drill Pore Pressure Studies

Model-based method used in predictive and asset evaluation tools

Predict pre-drill pore pressure using fit-for-purpose seismic velocities with a velocity-to-pore-pressure transform.

Schlumberger employs a proprietary vertical-effective, stress-based pore pressure prediction method. The method accounts for disequilibrium compaction, clay diagenesis, and hydrocarbon buoyancy; the dominant geopressure mechanisms in passive continental margins. It is fully calibrated at intermediate steps when well logs are available and is fully operable in regions where no downhole information exists.

Essential methods for reservoir size and quality assessment

Pore pressure predictions are useful for assessing potential field size and reservoir quality at the pre-drill stage. Pore pressure volumes are an indispensable asset evaluation tool for well casing design. Additionally, predictions can be used for hydrocarbon column height estimation, seal integrity, migration pathway analysis, and field compartmentalization.

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Pinpoint and Avoid Drilling Hazards with 3D Modeling

FWI enhances resolution in velocity model
A 3D velocity model (left) and pore pressure prediction (right) helped an operator drill an offshore HPHT well in less time. Visit the Pore Pressure Imaging & Analysis Services page

Pore Pressure Prediction: An Indispensable Asset Evaluation Tool

Deepwater prestack time migration
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