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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