Experimental Study of Fracturing Fluid Retention in Rough Fractures

Figure 7

Drainage mass with different fracture apertures: (a) CI (without gas drive), (b) CII (without gas drive), (c) CII (with gas drive), (d) CIII (without gas drive), and (e) CIII (with gas drive).

(a)

(b)

(c)

(d)

(e)