摘要：为探讨固体稠油的原位改质降黏技术,提高采收率,对其中关键因素催化剂进行研究。分别采用油溶性催化剂环烷酸铁与水溶性纳米催化剂硝酸铁,对新疆油田中的稠油固体进行改质降黏,并采用集总的分布式活化能模型(DAEM)模型对稠油固体热解过程进行分析。结果表明:环烷酸铁和硝酸铁独立作为催化剂时,对于稠油固体的降黏率分别到56. 29%、45. 40%;两者复配使用时,降黏率可达到97%,复配协同作用有助于集成各自优势。

关键词：稠油固体；催化降黏；复配催化剂；分布式活化能模型；热解动力学

Abstract: In order to study in-situ modification and viscosity reduction technology of solid heavy oil and improve oil recovery，the most critical factor catalyst was studied．Iron naphthenate，an oil-soluble catalyst，and ferric nitrate，a watersoluble catalyst，were employed，and their separate and combined effects on viscosity reduction were evaluated．The results showed that，the viscosity of heavy oil was reduced by 56．29% and 45．40% respectively when the two were used as separate catalyst，while the viscosity was significantly reduced by 97% when the two catalysts were combined．The distributed activation energy model ( DAEM) was employed to analyze the pyrolysis process of heavy oil and the synergistic effect of the catalysts helps to integrate the advantages of the two catalysts．

Keywords: heavy oil; viscosity reduction; combined catalyst; distributed activation energy model; dynamics