... geomechanical related failure mechanisms due to CO2 injection are shown in Figure 1 . These are the shear failures in wellbore and perforation wall, and the tensile failure in perforation tunnels. In the following sections, a comprehensive approach is introduced to investigate the risk of shear and tensile...

... of a weathered zone resulting from exhumation in the Mesozoic. The weathered zone consists of rock material generated by both physical and chemical weathering. The second explanation is shear failure due to reservoir depletion. Both explanations are supported by well data, seismic attributes and current...

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... redistribution in the vicinity of the wellbore. The redistributed stress state may exceed the rock strength and hence, failure can occur. P. 117 wellbore minor horizontal stress upstream oil & gas inclination shear failure mud pressure bedding plane reservoir characterization strength...