摘要
基于金属杂原子及其赖以存在的载体———沥青胶质对原油粘度的绝对贡献 ,测定了稠油模拟油的粘温特性及流变特性 ,分析了稠油高粘度的实质 ,为稠油节能降耗输送提供依据。研究结果表明 ,在 10～ 5 0℃内稠油模拟油呈牛顿流体 ,其粘度随温度降低及沥青、胶质含量增加而明显增大 ,稠油高粘的实质在于体系中不同分子相互作用所形成的胶束结构。通过稀释或膜分离等技术减小稠油大分子结构或降低稠油大分子浓度 ,将有效降低稠油粘度。
Based upon the influence of multi-metal atoms and their host body, i.e. bitumen resin, upon crude viscosity, viscosity, temperature property and rheology of heavy oil analog samples are analyzed for the reasons causing its high viscosity, then to provide basis for economical transmission. It shows Newton state between 10 to 50 ℃ and its viscosity decreases with temperature lowering while increases with the augmentation of its bitumen colloidal content obviously. Micelle structures from the interactive action of various type of molecules is the main reason leading to high viscosity of heavy oil. If dilution or diaphragm separation is applied to lessen large molecule structures or decrease the condensation of large molecules, viscosity of heavy oil will be decreased sharply and effectively.
出处
《特种油气藏》
CAS
CSCD
2001年第2期53-55,58,共4页
Special Oil & Gas Reservoirs
关键词
稠油
沥青胶质
降粘
流变性
输送技术
特性
heavy oil, bitumen resin, de-viscosity, rheology, transmission, study
