Wellbore stability analysis to determine the safe mud weight window for sandstone layers

DARVISHPOUR Ayoub,CHERAGHI SEIFABAD Masoud,WOOD David Anthony,GHORBANI Hamzeh

Fig. 7. Three induced stresses acting around the wellbore wall (red arrows) in relation to the three in-situ stresses prevailing in the formation penetrated by the wellbore (black arrows).