Analysis of Wellbore Stability considering the Interaction between Fluid and Shale

Figure 7

Borehole stability analysis of reservoir shale with considering weak plane.

(a) The critical regions distribution due to different mud weight of intact rock with ° and δ =0°

(b) The critical regions distribution due to different mud weight of intact rock with ° and °

(c) The critical regions’ distribution due to different mud weight of weak plane with ° and °

(d) The critical regions’ distribution due to different mud weight of weak plane with ° and °

(e) The critical regions’ distribution due to different mud weight with ° and °

(f) The critical regions’ distribution due to different mud weight with ° and °