Because the confining tension increases, the increase in resistance to longitudinal crack propagation leads to a gradual changeover of shale failure method from longitudinal to inclined shear failure that demonstrates an escalation in rock plasticity. When the confining force reaches thirty MPa, there remain community shear microcracks within the https://vertechs77530.canariblogs.com/5-simple-statements-about-wellbore-stability-analysis-explained-56661404