Several shear failure criteria are available, including Mohr-Coulomb, Mogi-Coulomb, and Modified Lade. Techlog Wellbore Stability can predict the breakout and breakdown pressure based on the wellbore direction versus the azimuth of the principal stresses. The MEM helps the user gain a thorough understanding of the properties of the rock surrounding the wellbore and the in situ stresses, enabling the prediction of potential shear and tensile failures at the borehole walls. The user is guided through the different steps required to build a calibrated mechanical earth model (MEM), which integrates all data. The Techlog Wellbore Stability module enables users to further develop the understanding gained from analysis in the Techlog Pore Pressure Prediction module by taking into account the in situ stress states around the wellbore. Efficient drilling through a better understanding of wellbore stability
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