This paper presents the results of numerical simulation of the injection of liquid sulfur dioxide into a porous reservoir accompanied by the formation of sulfur dioxide gas hydrate. The case is considered where the reservoir is initially saturated with methane and water and has a finite length and an impermeable outer boundary. It is shown that in the initial stage, the replacement of methane from the reservoir can occur with or without the formation of methane gas hydrate, depending on the permeability of the porous medium and pressure. It is found that over time, the thermodynamic conditions in the region of methane filtration become close to the formation conditions of methane gas hydrate.

中文翻译：

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液态二氧化硫注入饱和甲烷和水的多孔储层的数值研究

本文介绍了将液态二氧化硫注入多孔储层并伴有二氧化硫气体水合物形成的数值模拟结果。考虑这种情况，其中储层最初充满了甲烷和水，并且具有有限的长度和不可渗透的外部边界。结果表明，在初始阶段，取决于储集层的渗透率和压力，可以在不形成甲烷气体水合物的情况下从储层中置换甲烷。发现随着时间的流逝，甲烷过滤区域中的热力学条件变得接近于甲烷水合物的形成条件。