▎ 摘　　要

NOVELTY - The method involves performing dehydration treatment of crude oil emulsion liquid at normal temperature by using oxidation graphene emulsion splitter. Suspension liquid is prepared according to oxidation graphene formulated information. Oxidation graphene demulsifier processing information is obtained by an ultrasonic dispersing part. Oxidized graphite heat dispersion liquid is added in crude oil emulsion liquid. Adding amount of the heat dispersion liquid is l mg/L-200 mg/L. Stirring process is performed to realize oil-water separation process. USE - Method for demulsifying crude oil emulsion liquid in petroleum industry. ADVANTAGE - The method enables obtaining 96% crude oil emulsion liquid, and increasing water content of the crude oil emulsion liquid water in dehydrating process.