Research on Property of Multicomponent Thickening Water Fracturing Fluid and Application in Low Permeability Oil Reservoirs

Table 4

Comparison of three properties of two kinds of fracturing fluids.

Closing pressure (MPa)	Thickening water fracturing fluid system			Guar gum fracturing fluid system
	Fracture conductivity (μm^2·cm)	Diversion retention rate (%)	Diversion damage rate (%)	Fracture conductivity (μm^2·cm)	Diversion retention rate (%)	Diversion damage rate (%)
5	150.4	82.3	17.6	120.1	61.2	40.2
10	130.6	83.1	15.3	100.6	52.3	30.7
20	100.3	84.5	12.1	80.6	63.2	27.6
30	80.1	84.7	10.1	50.1	64.7	16.1
40	50.6	86.2	8.9	26.3	65.1	10.8

Note. Fracture conductivity: after the fracture is closed, the proppant filling zone can pass through the reservoir fluid. Diversion retention rate: determination of the ratio between the conductivity of fractured support and the diversion capacity of formation water measured by hydraulic fracturing after fracturing. Diversion damage rate: the decrease of the diversion capacity of the support fracture induced by the fracturing fluid relative to the formation water.