Research Article
Assessment of Chemical Effects on Wellbore Stability in Transition Shale Formation
Figure 19
Damage zone around the wellbore of drilled in shallow soft shale for a mud density of (a) 1.1 g/cm3, (b) 1.2 g/cm3, (c) 1.3 g/cm3, (d) 1.4 g/cm3, (e) 1.5 g/cm3, and (f) 1.6 g/cm3.
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