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Pore Pressure Prediction

Improve operational safety

The Pore Pressure Prediction module allows for the visualization of geomechanical outputs such as pore pressure, vertical and horizontal stresses, and rock properties. The safe mud weight window can be computed using state-of-the-art methods for estimating pore pressure and formation fracture gradients. This can be performed in a single well or multiwell environment.

Overburden stress

Synthetic density estimation up to surface using extrapolation of data (Amoco Gulf of Mexico correlation, Gardner equation, and Miller equation). Techlog software can provide an automatic fit for density data and an overburden stress calculation by integrating density data up to surface.

Pore pressure and fracture gradient

Pore pressure prediction can be performed using

  • shale discrimination
  • Eaton method using resistivity and sonic/seismic data
  • display calibration data from drilling or other Techlog tools such as the FPress module.

Fracture gradient can be performed using

  • constant K0 method
  • Eaton method
  • Matthews and Kelly method.

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Safe mud weight window analysisCross-plot utilities for calibrating the effective stress versus velocityPore pressure calculation from sonic data using the Eaton method
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