In this tutorial, we explore how WellCAD’s Geomechanics workspace enables detailed fracture-stability evaluation using downhole image logs and stress-model outputs. Starting with borehole microresistivity where fractures are picked, we combine pore pressure, vertical stress, horizontal stresses, overburden and shear fracture gradient curves to construct a Mohr-Coulomb diagram and analyse failure conditions across depth.

The workflow demonstrates how to interactively configure stress inputs, visualize slip and dilation tendencies, and apply friction and cohesion parameters to distinguish critically stressed fractures from stable ones. With cursor-driven depth tracking and flexible plot modes, the video shows how users can assess stability feature-by-feature or across intervals adapting Mohr circles dynamically as stress conditions change.

Finally, the example highlights the ability to classify stress regimes (reverse, strike-slip, etc.), synchronize displays with image logs, adjust visual palettes, and export fracture-stability results for interpretation. This integrated approach allows geoscientists to confidently evaluate fracture reactivation potential and mechanical behaviour within their boreholes.