Study on Pressure Characteristics of Disturbed Wells due to Interwell Fracturing Interference and Its Application in Small Well Spacing Fracturing

Table 2

The type of interwell fracturing interference.

Label	Interference type	PIF	Communication media	Effect on production
I	Pressure communication	0~0.4	Micro- and branching fractures	Maintaining the pressure in reservoirs
II	Hydraulic fractures connection	0.4~0.6	Hydraulic fractures	Maybe be conducive to pressure maintenance
III	Large natural fractures connection	0.6~1	Natural fractures/faults	Bad for pressure maintenance
IV	Composite	0.6~1	Combination of above fractures	A large interference area and bad for pressure maintenance