The collapse tension and fracture force for shale–sandstone have been computed across different elastic modulus and Poisson’s ratios to ascertain the Protected density window. Assuming horizontal bedding while in the formation and looking at the affect of bedding planes, the variation of wellbore collapse stress polar plots with formation https://medium.com/@vertechs/revolutionizing-well-control-in-high-pressure-high-temperature-gas-drilling-environments-c212cb28aedd