The collapse pressure and fracture force for shale–sandstone had been computed throughout varying elastic modulus and Poisson’s ratios to ascertain the Risk-free density window. The PPW criterion far better reveals the energy of shale with various bedding angles. During this review, the JPW and PPW requirements are utilized since https://bookmarkgenius.com/story21425420/the-smart-trick-of-wellbore-stability-issues-that-no-one-is-discussing