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

Figure 14

Vug strip in experiment 3: (a) fracture surface picture; (b) schematic diagram of the relationship between vug strip and fracture. Compared with other parts of the fracture surface, the vug strips have more fracturing fluid flow, and the wall absorbs more tracer.

(a)

(b)