Research Article

Prediction Model of Rate Decline for Acid-Fracturing Vertical Wells in Pore-Cavity-Fracture Carbonate Reservoirs

Figure 14

New rate decline curves of an AFVW in a pore-cavity-fracture carbonate reservoir under different crossflow coefficients.
(a) Matrix-fracture crossflow coefficient
(b) Cavity-matrix crossflow coefficient
(c) Cavity-fracture crossflow coefficient