For polymer residue issues in shale oil slickwater systems, this product provides a professional biological enzyme depolymerization solution. Through highly specific biological enzymes, it precisely hydrolyzes the PAM main chain, achieving rapid molecular weight reduction and effective viscosity reduction of flowback fluid. Compared with traditional oxidative degradation, this technology has significant advantages such as controllable reaction, no secondary damage, and strong environmental compatibility, helping achieve clean and efficient reservoir stimulation and productivity release.