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Table 1 Description of the four configurations considered to address uncertainties on the stress state

From: Borehole damaging under thermo-mechanical loading in the RN-15/IDDP-2 deep well: towards validation of numerical modeling using logging images

Name “Andersonian” stress state (MPa) Transformed stress state, aligned with a local coordinate system which is aligned with the wellbore axis (MPa)
Tectonics σ v σ H σ h σ ss σ dd τ sd
Case A Intermediary normal/strike-slip fault v = σH = σ1) 134 134 60 125 85 21
Case B Normal fault—“low” horizontal isotropic stress (σv = σ1) 134 60 60 60 79 0
Case C Strike-slip fault (σH = σ1 and σv = σ2) 134 180 60 166 89 33
Case D Normal fault—“high” horizontal isotropic stress (σv = σ1) 134 80 80 80 94 0
  1. The stress magnitudes are given in 3D in the vertical/horizontal system (here assumed to be the principal stress state) and their components in the 2D plane perpendicular to the wellbore axis (obtained by a linear transform, see Fig. 5). σ1: major principal stress, σ2: intermediate principal stress. σv: vertical stress, σH: maximum horizontal stress, σh: minimum horizontal stress, σdd: stress component in dip direction of the 2D plan, σss: stress component in strike direction of the 2D plan, τsd: tangential shear stress component in the plane perpendicular to the well