▎ 摘　　要

NOVELTY - Chemical intervention in-situ emulsification system comprises 0.1-0.3 wt.% carbon dioxide responsive monomer, 0.1-0.3 wt.% surfactant, 0.01-0.1 wt.% hydrophilic nano-material, and water (balance), where the chemical intervention in-situ emulsification system is prepared by mixing 0.1-0.3 wt.% carbon dioxide responsive monomer, 0.1-0.3 wt.% surfactant, 0.01-0.1 wt.% hydrophilic nano material, and passingcarbon dioxide to make the carbon dioxide respond to the protonation of the monomer. USE - The chemical intervention emulsification system is useful in heavy oil reservoirs and light oil reservoirs, and heterogeneous reservoirs. ADVANTAGE - The method realizes the rapid demulsification and dehydration. The chemical intervention emulsification system can be adjusted the viscosity to a moderate degree i.e. not too small or too large.