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摘 要 稠油即高粘度重质原油，国际上常称为重油。稠油是一种复杂的、多组分的均质有机混合物，主要是由烷烃、芳烃、胶质和沥青质组成。 在世界稀油资源紧缺的局面下，稠油将成为石油资源的重要接替，我国原油主要是以稠油油藏为主，稠油中胶质、沥青质含量过高是稠油高粘度的原因，对稠油开采和输送工艺难度相当大，针对不同稠油油品选择合理的降粘方法将变得至关重要。 论文采用了理论实验相结合的方法，通过介绍稠油的性质，说明了稠油高粘度的实质。借助于目前稠油降粘的方法或技术及其作用机理，运用室内实验、理论分析、理论计算，从一系列不同降粘剂用量、组合方式对比组实验中，筛选出降粘效果好、经济实用的组合方式，配制比例。近一步运用实验研究了对加有最佳降粘剂的原油的协同作用以及原油加入有机溶剂后的最适温度，同时，从降粘效果来考察，得出其复合法较之单独降粘方法更具优越性。 关键词：稠油降粘，化学降粘，物理降粘 论文类型：实验性论文 Abstract Heavy oil namely high viscosity heavy oil, international often called the heavy oil. Heavy oil is a complex, more homogeneous mixture composition, organic primarily by paraffin, aromatics, colloid and asphaltene contents of composition. In the world thin oil resources situation, the heavy oil will become petroleum resources in China, an important replace mainly centered on heavy oil reservoirs crude oil, heavy oil of gelatin, bituminous content too high is the reason, heavy high viscosity of exploiting heavy oil and conveying process according to different difficulty quite big, the rational choice of heavy oil viscosity reduction method will become vital. The paper by using the method of combining theoretical experiment, through the introduction of the nature, explains the heavy oil essence of high sticky. By now the heavy oil viscosity reduction method or technology and its mechanism, using laboratory experiment and theoretical analysis and calculation, the viscosity reduction from a series of different combination agent, and were compared with group experiment, the effect of viscosity, economic and practical combination, mixing proportion. Nearly step to use the study added with optimal slope adhesive oil synergy and oil to join the organic solvent, and at the same time, the optimal temperature effect from viscosity to inspect, and that its complex legal viscosity reduction method than alone more advantages. Keywords： Heavy crude visbreaking, Chemical visbreaking, Physical visbreaking Thesis：Experimental Paper10倍以上。稠油是各种烃类与非烃类的混合物,当各