The Mechanism of Wellbore Weakening in Worn Casing-Cement-Formation System

<table>Hoop stress inside the worn casing cement for Case <a href="https://static.hindawi.com/articles/jpe/volume-2014/126167/figures/#casee4">4</a>.</table>

Journal of Petroleum Engineering

fig11

Figure 11

Figure 11: The Mechanism of Wellbore Weakening in Worn Casing-Cement-Formation System 