▎ 摘　　要

NOVELTY - Amphiphobic polymer containing acyl hydrazone bond (I) is new. USE - (I) is useful for preparing nano-amphiphobic reversal agent containing acyl hydrazone bond polymer for forming a wet adsorption layer on the surface of the formation core, thus the surface of the core changes from hydrophilic and oil-friendly to hydrophobic and oleophobic (all claimed). ADVANTAGE - (I) provides nano-amphiphobic reversal agent containing acyl hydrazone bond polymer which transforms the hydrophilic and lipophilic rock core surface into oleophobic and hydrophobic; has salt resistance and shear resistance, which is excellent for improving the recovery rate of crude oil. DETAILED DESCRIPTION - Amphiphobic polymer containing acyl hydrazone bond of formula (I) is new. x, y and z = 16-25. INDEPENDENT CLAIMS are also included for: Preparing (I); Nano-amphiphobic reversal agent containing acyl hydrazone bond polymer, comprising it is prepared by reacting (I) with vinyltrimethoxysilane nanoparticles, and the nanoparticle includes nano silicon dioxide, nano titanium dioxide or nano graphene oxide; and Preparing nano-amphiphobic reversal agent containing acyl hydrazone bond polymer, comprising (a) reacting vinyltrimethoxysilane coupling agent and nano-silica in an alcohol solvent to obtain vinyltrimethoxysilane nano-silica particles, and (b) mixing (I) with the obtained vinyltrimethoxysilane nano-silica particles, adding an initiator into it, and heating the reaction to obtain the nano-amphiphobic reversal agent containing acyl hydrazone bond polymer.