Interaction Law between Natural Fractures-Vugs and Acid-Etched Fracture during Steering Acid Fracturing in Carbonate Reservoirs

Figure 12

Perspective view of the distribution of fractures: (a) experiment 1; (b) experiment 2; (c) experiment 3; (d) experiment 4. Green surfaces indicate natural fractures, and red surfaces indicate acid-etched fractures.

(a)

(b)

(c)

(d)