journal article Open Access Jan 01, 2020

Solution of the Problem of Natural Gas Storages Creating in Gas Hydrate State in Porous Reservoirs

Mathematics Vol. 8 No. 1 pp. 36 · MDPI AG
View at Publisher Save 10.3390/math8010036
Abstract
Underground gas hydrate storage of natural gas is a rather promising way of creating underground storage facilities for hydrocarbon raw materials in porous reservoirs. This paper presents a solution to the problem of the formation of CH4 hydrate in a porous medium during the injection of methane into a reservoir at a temperature lower than the initial temperature of the reservoir. Self-similar solutions of the problem in axisymmetric approximation are given, describing the pressure and temperature distribution in separate reservoir regions at the formation of gas hydrate on the frontal surface. On the basis of the method of sequential change of stationary states, an analytical solution was obtained, which allowed us to determine the position of the methane hydrate formation boundary depending on different parameters for any moment of time. The limits of the applicability of the proposed model are also given. Thus, the analysis of the calculation results showed that the constructed solution allows one to sufficiently and accurately determine the values of parameters at the frontal surface for a highly permeable medium (k0 > 10−13 m2). It was proved that in the case of a highly permeable medium, the methane hydrate formation intensity will be limited by convective heat dissipation during hydrate formation.
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References
Details
Published
Jan 01, 2020
Vol/Issue
8(1)
Pages
36
License
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Funding
Российский Фонд Фундаментальных Исследований (РФФИ) Award: 18-29-10023
Cite This Article
Nail G. Musakaev, Marat K. Khasanov (2020). Solution of the Problem of Natural Gas Storages Creating in Gas Hydrate State in Porous Reservoirs. Mathematics, 8(1), 36. https://doi.org/10.3390/math8010036