火烧油层岩矿特征物理模拟试验研究

Physical simulation of lithology and mineralogy feature in In-situ combustion (ISC) was carried out by adopt the glutenite and sandstone as core samples respectively. Produced oil constituent and flue gas components were measured by column chromatography, element analysis and gas chromatography. Average molecular formula of heavy oil and produced oil were established through elementary analysis. The results showed that stable ISC frontier were obtained in both kinds of rock reservoir and fire flooding recovery was realized. The frontier peak temperature was reached to 450℃，the combustion of heavy oil was sufficient but not violent. The usage of injected oxygen was high. The components of flue gas were abundant and complicate. Asphaltene in sandstone reservoir were thorough burned and the frontier peak temperature in ISC was high 100℃ than that of glutenite reservoir, and The oxygen content of produced oil was low.