Theoretical modeling of gas extraction from a partially gas-saturated porous gas-hydrate reservoir with respect to thermal interactions with surrounding rocks

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• 作者：V. Sh. Shagapov ; A. S. Chiglintseva…
• 关键词：gas hydrate reservoir ; thermal interaction ; rocks ; reservoir pressure ; equilibrium state ; gas extraction ; duration of exploitation ; conservation ; hydrate saturation
• 刊名：Theoretical Foundations of Chemical Engineering
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：50
• 期：4
• 页码：449-458
• 全文大小：889 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Industrial Chemistry and Chemical Engineering
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3431
• 卷排序：50

文摘

A theoretical model has been constructed for the gas-hydrate reservoir that represents a unique natural chemical reactor, and the principal possibility of the full extraction of gas from a hydrate due to the thermal reserves of the reservoirs themselves and the surrounding rocks has been analyzed. The influence exerted on the evolution of a gas hydrate reservoir by the reservoir thicknesses and the parameters that determine its initial state (a temperature, pressure, hydrate saturation) has been studied. It has been established that the shortest time of exploitation required by the reservoirs with a thickness of a few meters for the total hydrate decomposition is recorded in the cyclic regime when gas extraction alternated with the subsequent conservation of the gas hydrate deposit.