▎ 摘　　要

NOVELTY - A thick oil viscosity reducer comprises graphene oxide. USE - Thick oil viscosity reducer. ADVANTAGE - The product has synergistic effect, uses water-soluble graphene oxide as main component, and solves high viscosity and large density of thick oil, difficult to drive in reservoir environment and too large flow resistance in conveying process. The method is simple to operate and has convenient and low cost post-treatment. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for using method of thick oil viscosity reducer comprising putting dispersing reducer in water to form thick oil viscosity reducer solution, adding to pre-heated thick oil to constant temperature of of 45-60 degrees C, stirring at constant temperature, and sufficiently contacting and reacting reducer with heavy oil to obtain emulsion with low viscosity.