The collapse pressure and fracture force for shale–sandstone had been computed across varying elastic modulus and Poisson’s ratios to find out the Harmless density window. The PPW criterion greater reveals the power of shale with varying bedding angles. Within this research, the JPW and PPW criteria are used as https://base-directory.com/listings13604478/top-guidelines-of-rock-mechanics-in-wellbore-stability