A Study on Generation and Feasibility of Supercritical Multi-Thermal Fluid

Supercritical multi-thermal fluid is an emerging and efficient heat carrier for thermal recovery of heavy oil, but the generation supercritical its feasibility in are rarely discussed. In this paper, flooding experiments were carried out, respectively, fluid. During experiment, temperature pressure reactor sand-pack monitored recorded, generated by reaction was analyzed chromatography, enthalpy product displacement efficiency calculated, respectively. The experimental results showed that change could be roughly divided into three stages process higher proportion oil reactant, maximum reactor. When water reactant constant, rise basically same under different initial conditions. Compared with pressure, oil–water ratio reactants had a significant effect on more gas fluid, lower specific Under water, gas–water mass crude lower, higher. Through study, it found low efficiency, early rate, larger area formed layer, later channeling. study show optimal about 1, which layer reached maximum. Correspondingly, when generating multi-component 10%. oilfield applications, because has impact optimization should not only consider also findings improve our understanding characteristics conditions process. This research great significance field applications