Within this research, two criteria have been employed: the Mohr–Coulomb (M–C) criterion along with the multi-weak-airplane toughness criterion for shale formations. These are generally accustomed to conduct analysis and achieve the optimization in the failure requirements for shale–sandstone interbedded reservoirs. Lamellar shale oil reservoirs produce millimeter-to-centimeter-scale s... https://well-control-operations67654.wikihearsay.com/4388439/details_fiction_and_wellbore_stability_in_drilling