▎ 摘　　要

NOVELTY - Preparing superparamagnetic graphene oxide oil displacement agent comprises dispersing graphene oxide in N,N-dimethylformamide to obtain a graphene oxide dispersion, adding ethylenediamine to the graphene oxide dispersion and reacting to obtain aminated graphene oxide, mixing and reacting the aminated graphene oxide, iron source and aqueous ammonia-ammonium nitrate solution to obtain magnetic aminated graphene oxide, adding magnetic aminated graphene oxide, surfactant and polycarboxylate water reducing agent into solvent, and reacting to obtain the superparamagnetic graphene oxide oil displacement agent. USE - The method is useful for preparing superparamagnetic graphene oxide oil displacement agent. ADVANTAGE - The method designs a novel surfactant material with a magnetic group structural unit, endows it with the ability to perform bidirectional reversible regulation according to changes in the external magnetic field, realizes the intelligent regulation of the whole process of the oil displacement surfactant performance, improves the salt resistance, improves the oil-water separation efficiency of the produced fluid during the oil displacement process, simplifies the production process, and reduces the production cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for superparamagnetic graphene oxide oil displacement agent obtained by the above preparation method.