A Polymer Fracturing Fluid with Low Formation Damage and High Elasticity

A new type of synthetic polymer fracturing fluid with low formation damage is introduced in this paper. The gellant FA-200A used in this new fracturing fluid system is almost free of insoluble materials. The pH value of the crosslink is 5-6 using AC-12A as the cross linking agent. This new fracturing fluid system is suitable for use in both conventional hydraulic fracturing and liquid N_2 foamed fracturing. Application temperatures of this new fracturing fluid system are 50-90 ℃. Comparing with guar fracturing fluid, the new fracturing fluid system eliminates the use of bactericides. The cost of this fracturing fluid is lower than clear fracturing fluids.