The collapse tension and fracture strain for shale–sandstone were computed across different elastic modulus and Poisson’s ratios to find out the safe density window. The PPW criterion far better reveals the strength of shale with different bedding angles. In this examine, the JPW and PPW standards are applied because https://vertechs.mystrikingly.com/blog/mastering-the-depths-how-vertechs-is-redefining-well-control-for-a-new-eraof