Effective Stress Factor Analysis of Proppant for Multi-stage Fracturing in Horizontal Wells

Figure 3

(a) Pressure change of the fracturing process when the number of perforation clusters in a single stage is 3, 6, and 12 clusters respectively. (b) Pressure change of the flowback process when the number of perforation clusters in a single stage is 3, 6, and 12 clusters respectively.

(a)

(b)