Hydraulic fracturing (also fracking, fraccing, hydrofracturing or hydrofracking) is a well stimulation technique in which rock is fractured by a pressurized liquid. The process involves the high-pressure injection of 'fracking fluid' (primarily water, containing sand or other proppants suspended with the aid of thickening agents) into a wellbore to create cracks in the deep-rock formations through which natural gas, petroleum, and brine will flow more freely.

The specificity of this product is that the gel formation takes place before the injection on the ground. The cross-linking time can be adjusted by using different quantities of cross-linking agent. The specific properties of this product are good elasticity and no residue.

Due to the characteristics of carbonate reservoir pore seam development & high-temperature formation, to ensure the acid fracturing effect , needs to improve the penetration depth of the reservoir, increase the acid fluids conductive ability, in this sense,it's required to improve the rheological properties & reduce the acid-rock reaction speed.