New Analytical Method to Evaluate Casing Integrity during Hydraulic Fracturing of Shale Gas Wells

Figure 14

Comparison of numerical and analytical solutions. (a) Radial stress along the radial directions of 0° and 90°. (b) Radial stress at the internal casing wall. (c) Circumferential stress along the radial directions of 0° and 90°. (d) Circumferential stress at the internal casing wall. (e) Mises stress at inner and outer casing walls.

(a)

(b)

(c)

(d)

(e)