In this research, two standards have been utilized: the Mohr–Coulomb (M–C) criterion as well as multi-weak-airplane strength criterion for shale formations. They're accustomed to conduct investigation and realize the optimization of the failure criteria for shale–sandstone interbedded reservoirs. Lamellar shale oil reservoirs acquire millimeter-to-centimeter-scale siltstone and mud sh... https://tonyx233dzu9.wikiexpression.com/user