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The Theory of the Replacement of Methane by Carbon Dioxide in Gas Hydrates

机译：天然气中二氧化碳替代甲烷的理论

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A plane one-dimensional theoretical model has been considered and numerical solutions have been derived for the replacement of methane by carbon dioxide in a reservoir saturated with methane and its hydrate during carbon dioxide injection. The case in which the intensity of carbon dioxide hydrate formation is controlled by the diffusion of carbon dioxide through the hydrate layer formed between the stream of a gaseous mixture and a methane hydrate has been considered. The dynamics of the main process parameters and the flow rates of injected and exiting carbon dioxide and recovered methane has been studied. The effect of a diffusion coefficient and absolute permeability on the specific features of gas replacement has been analyzed.
机译：已经考虑了平面一维理论模型，并且已经通过用甲烷饱和的储存器中的二氧化碳替换甲烷的数值溶液及其在二氧化碳注射过程中的水合物。通过将二氧化碳的扩散通过在气态混合物流和甲烷水合物之间的水合物层的扩散来控制二氧化碳水合物形成强度的情况。研究了主要过程参数的动态和注射和离开二氧化碳和回收甲烷的流速。分析了扩散系数和绝对渗透率对气体替代的特定特征的影响。

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