Open Access

Table 4

Comparison of propped hydraulic fractures around producer and WIFs around water injector (modified from Rizwan [28]).

Propped fractures in producer Fractures in water injector
Type of fracture Static (non-shrinking) Non-static (shrinking)
Type of PTA used Pressure build-up Injection fall-off
Fracture induced intentional or accidental? Intentional Accidental
Proppant used? Yes No
Fracture closure occurs? No Yes
Fracture storage occurs? No Yes
Closure induced flow affects PTA? Not observed Strongly observed

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