论文标题
在多孔介质中，轻油的反应性混乱的位移
Reactive miscible displacement of light oil in porous media
论文作者
论文摘要
我们将高压空气注入问题的问题发展为含有轻油的深层储层。在这些条件下，注入的液体（氧 +惰性成分）与储层中的油完全混乱。此外，溶解氧和油之间的放热反应是可能的。我们使用Koval的模型来说明组件的混杂性，使得分数功能类似于Buckley-Leverett流的函数。这允许将该问题的解分解为一系列波。然后，我们继续在每个波中获得完整的分析解决方案。特别感兴趣的情况{是}燃烧波在其内部波轮廓中呈现奇异性。评估问题上问题的变量决定了波浪的宏观参数，即燃烧温度，波速和下游油分。先前观察到波浪结构以进行反应性不混溶的位移，我们在这里首次将其描述为反应性混乱的油位移。我们使用数值模拟验证了开发的理论。
We develop a theory for the problem of high pressure air injection into deep reservoirs containing light oil. Under these conditions, the injected fluid (oxygen + inert components) is completely miscible with the oil in the reservoir. Moreover, exothermic reactions between dissolved oxygen and oil are possible. We use Koval's model to account for the miscibility of the components, such that the fractional-flow functions resemble the ones from Buckley-Leverett flow. This allows to decompose the solution of this problem into a series of waves. We then proceed to obtain full analytical solutions in each wave. Of particular interest {is the case where} the combustion wave presents a singularity in its internal wave profile. Evaluation of the variables of the problem at the singular point determines the macroscopic parameters of the wave, i.e., combustion temperature, wave speed and downstream oil fraction. The waves structure was observed previously for reactive immiscible displacement and we describe it here for the first time for reactive miscible displacement of oil. We validate the developed theory using numerical simulations.
