Viscosity control agents fracturing fluid used hydraulic fracturing

A when generating work Fracture in hydraulic fracturing is to maintain a high fracturing fluid viscosity, it is possible to reduce the viscosity during recovery operations fracturing fluid, viscosity control agents fracturing fluid, the viscosity control agent fracturing fluid containing, and provides a mining methods of oil or natural gas using the fracturing fluid. A The viscosity control agent of the present invention is a viscosity control agent used to control the viscosity change of the fracturing fluid used hydraulic fracturing, and a polyalkylene oxide and the viscosity reducing agent is a tablet.