Numerical research of gas-hydrate deposit development in the conditions of negative temperatures

5th All-Russian Conference with International Participation POLAR MECHANICS

地球科学;力学

Musakaev, N.G.^1,2,3 ; Khasanov, M.K.^1 ; Borodin, S.L.^1,2

Sterlitamak Branch, Bashkir State University, Lenina Str. 37, Sterlitamak

453103, Russia^1

Tyumen Branch of Khristianovich Institute of Theoretical and Applied Mechanics of SB RAS, Taymirskaya Str. 74, Tyumen

625026, Russia^2

Industrial University of Tyumen, Volodarskogo Str. 38, Tyumen

625000, Russia^3

关键词: Decomposition of methane;    Hydrate decomposition;    Initial temperatures;    Methane extraction;    Negative temperatures;    Numerical research;    Reservoir temperatures;    Saturated reservoirs;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/193/1/012046/pdf
DOI  :  10.1088/1755-1315/193/1/012046

学科分类：力学，机械学

来源: IOP

【 摘 要 】

Numerical research of non-isothermal filtration flow in a hydrate saturated reservoir taking into account the decomposition of methane hydrate is carried out. It is established that the gas extraction in the case of the negative initial reservoir temperature (the gas hydrate decomposition occurs to gas and ice) is more beneficial than the methane extraction from the reservoir with the positive initial temperature (the methane hydrate decomposition occurs to gas and water). Calculations show that, in the first case, the time for the complete hydrate decomposition in a reservoir decreases with an increase in the initial reservoir temperature and an increase in the bottomhole depression.