As being the confining stress boosts, the rise in resistance to longitudinal crack propagation ends in a gradual transition of shale failure mode from longitudinal to inclined shear failure that demonstrates an escalation in rock plasticity. When the confining tension reaches thirty MPa, there are still nearby shear microcracks https://milodyqdr.azzablog.com/42153309/top-guidelines-of-rock-mechanics-in-wellbore-stability