气候变化领域集成服务门户(CCPortal): Effect of gas composition and pressure on pore water freezing point in gas-saturated sediments: An experimental study [ЭКСПЕРИМЕНТАЛЬНОЕ ИЗУЧЕНИЕ ВЛИЯНИЯ СОСТАВА И ДАВЛЕНИЯ ГАЗА НА ТЕМПЕРАТУРУ ЗАМЕРЗАНИЯ ПОРОВОЙ ВОДЫ В ГАЗОНАСЫЩЕННЫХ ПОРОДАХ]

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DOI	10.21782/KZ1560-7496-2019-5(49-57)
	Effect of gas composition and pressure on pore water freezing point in gas-saturated sediments: An experimental study [ЭКСПЕРИМЕНТАЛЬНОЕ ИЗУЧЕНИЕ ВЛИЯНИЯ СОСТАВА И ДАВЛЕНИЯ ГАЗА НА ТЕМПЕРАТУРУ ЗАМЕРЗАНИЯ ПОРОВОЙ ВОДЫ В ГАЗОНАСЫЩЕННЫХ ПОРОДАХ]
	Chuvilin E.M.; Davletshina D.A.; Bukhanov B.A.; Grebenkin S.I.; Istomin V.A.; Sergeeva D.V.; Badetz Ch.; Stanilovskaya J.V.
发表日期	2019
ISSN	15607496
卷号	23 期号:5
英文摘要	Confined freezing of pore water in gas-saturated sediments under gas pressure associated with cryogenic gas concentration is studied experimentally. The behavior of pore water freezing temperature in pressurized sediments is modeled for different saturating gases: nitrogen, methane, carbon dioxide, and a CH4 + CO2 (1:1) mixture. Natural sand and silt samples from permafrost are frozen in laboratory in a specially designed system which can record temperature change in heated and frozen gas-saturated soil samples under gas pressure specified to be below the level of gas hydrate stability. The freezing point of pore water shows dependence on the gas pressure and composition. The changes of the freezing temperature are notable if the saturating gases are highly soluble (carbon dioxide), but the presence of salt ions reduces the effect. Poorly soluble gases, such as nitrogen and methane, can provide no more than 0.1 °C/MPa reduction of the freezing point unless carbon dioxide is present in the pores, which increases the coefficient to 1.36 °C/MPa. The experimentally estimated effect of gas pressure on the freezing temperature of pore water agrees with the results of thermodynamic calculations based on pore water activity. © 2019 Academic Publishing House Geo. All rights reserved.
英文关键词	Carbon dioxide; Experimental modeling; Freezing temperature; Freezing under pressure; Gas-saturated sediment; Methane; Nitrogen
学科领域	carbon dioxide; chemical composition; experimental study; freezing; gas; methane; modeling; nitrogen; porewater; pressure effect; sediment chemistry; temperature effect
语种	英语
scopus关键词	carbon dioxide; chemical composition; experimental study; freezing; gas; methane; modeling; nitrogen; porewater; pressure effect; sediment chemistry; temperature effect
来源期刊	Earth's Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118983
作者单位	Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, build. 3, Moscow, 143026, Russian Federation; Lomonosov Moscow State University, Faculty of Geology, 1, Leninskie Gory, Moscow, 119991, Russian Federation; Gazprom VNIIGAZ JSC, vl. 15, build. 1, Projected Passage No. 5537, Moscow Region, Leninsky District, Razvilka, 142717, Russian Federation; Total S.A., 2 place Jean Millier, La Défense, Paris, 92078, France
推荐引用方式 GB/T 7714	Chuvilin E.M.,Davletshina D.A.,Bukhanov B.A.,et al. Effect of gas composition and pressure on pore water freezing point in gas-saturated sediments: An experimental study [ЭКСПЕРИМЕНТАЛЬНОЕ ИЗУЧЕНИЕ ВЛИЯНИЯ СОСТАВА И ДАВЛЕНИЯ ГАЗА НА ТЕМПЕРАТУРУ ЗАМЕРЗАНИЯ ПОРОВОЙ ВОДЫ В ГАЗОНАСЫЩЕННЫХ ПОРОДАХ][J],2019,23(5).
APA	Chuvilin E.M..,Davletshina D.A..,Bukhanov B.A..,Grebenkin S.I..,Istomin V.A..,...&Stanilovskaya J.V..(2019).Effect of gas composition and pressure on pore water freezing point in gas-saturated sediments: An experimental study [ЭКСПЕРИМЕНТАЛЬНОЕ ИЗУЧЕНИЕ ВЛИЯНИЯ СОСТАВА И ДАВЛЕНИЯ ГАЗА НА ТЕМПЕРАТУРУ ЗАМЕРЗАНИЯ ПОРОВОЙ ВОДЫ В ГАЗОНАСЫЩЕННЫХ ПОРОДАХ].Earth's Cryosphere,23(5).
MLA	Chuvilin E.M.,et al."Effect of gas composition and pressure on pore water freezing point in gas-saturated sediments: An experimental study [ЭКСПЕРИМЕНТАЛЬНОЕ ИЗУЧЕНИЕ ВЛИЯНИЯ СОСТАВА И ДАВЛЕНИЯ ГАЗА НА ТЕМПЕРАТУРУ ЗАМЕРЗАНИЯ ПОРОВОЙ ВОДЫ В ГАЗОНАСЫЩЕННЫХ ПОРОДАХ]".Earth's Cryosphere 23.5(2019).