Since the confining tension raises, the rise in resistance to longitudinal crack propagation results in a gradual transition of shale failure manner from longitudinal to inclined shear failure that reflects an escalation in rock plasticity. Once the confining tension reaches 30 MPa, there remain community shear microcracks across the https://vertechs.mystrikingly.com/blog/revolutionizing-well-control-in-high-pressure-high-temperature-gasdrilling