In this analyze, two criteria are already employed: the Mohr–Coulomb (M–C) criterion and also the multi-weak-airplane toughness criterion for shale formations. These are definitely used to conduct exploration and realize the optimization on the failure conditions for shale–sandstone interbedded reservoirs. The worry distribution rules vary under distinctive strain mechanisms, https://vertechs21.wordpress.com/2026/01/02/enhancing-wellbore-integrity-through-fluid-rheology-a-comprehensive-approach/