Abstract:Aiming at the problems of complex injection procedure, high cost, great damage to formation permeability of traditional chemical sand consolidation agents, and weak adsorption capacity and short validity of polymer sand control agents, the existing polyamide polymer sand control agents were designed and modified by molecular simulation and experiment. The synthesis, structure characterization, performance test and formula optimization of quaternary ammonium modified and strengthened polyamide sand control agents were completed, and the mechanism of sand control agent with enhanced film formation was determined.