摘要
选取胜利油田特稠油、超稠油及特超稠油油样,通过气相色谱仪、元素分析仪、分子量测定仪、原子吸收光谱仪等对稠油的微观特性进行研究。结果表明,稠油杂原子中氧的含量最高,氮的含量最低;稠油沥青质中金属元素的含量均高于胶质,且Ni与Fe的含量较高,Ca与Mg主要存在于沥青质中,胶质中很少;沥青质与胶质总的含量是影响稠油黏度的主要因素,含量越大,稠油的黏度越高,且沥青质的分子量也是影响稠油黏度的重要因素;低碳数烃的存在对稠油黏度的降低有重要的影响,作为溶剂稀释稠油,使体系的黏度降低。
The chemical and physical properties of Shengli heavy oils were studied by means of gas chromatog raphy （GC）, elemental analysis （EL）, molecular weight analysis （VPO）, and atomic absorption spectroscopy （AAS）. The results showed that the content of heteroatom （ N, O and S） containing groups in the heavy oil which the O element is the highest and the N element is the lowest. The content of Ni and Fe more than others metallic el ements in the resin and asphaltene, and the metallic elements main exist in the asphahene especial the Ca and Mg. Combined resins and asphahenes content could be used to better map viscosity variations across heavy oil fields, the more the content, the higher the viscosity of the heavy oil, and the molecular weight of asphaltene has been playing an important role in viscosity. The components of low molecular could act as some kind of solvent, and it was play an important role in reducing the viscosity of heavy oil.
出处
《科学技术与工程》
北大核心
2012年第23期5865-5868,共4页
Science Technology and Engineering
基金
国家重大专项(2011ZX05031-003-004)资助
关键词
稠油
性质
黏度
heavy oil poperty viscosity
