With this study, two conditions have already been employed: the Mohr–Coulomb (M–C) criterion plus the multi-weak-aircraft power criterion for shale formations. They are utilized to conduct investigation and achieve the optimization of the failure standards for shale–sandstone interbedded reservoirs. The Patchy Aircraft of Weakness criterion extends Jaeger’s solitary weak https://well-control25813.bmswiki.com/6161517/wellbore_stability_analysis_options