ЭКСПЕРИМЕНТАЛЬНАЯ ОЦЕНКА ВОЗМОЖНОСТИ ГАЗОГИДРАТООБРАЗОВАНИЯ В ТОНКОДИСПЕРСНЫХ ГРУНТАХ ПРИ ОТРИЦАТЕЛЬНЫХ ТЕМПЕРАТУРАХ

Translated title of the contribution: Estimation of potential gas-hydrate formation in finely dispersed soils at negative temperatures: Experimental modeling

D. A. Davletshina, E. M. Chuvilin

Research output: Contribution to journalArticlepeer-review

Abstract

The article presents results of the experimental modeling of the potential methane hydrate formation in the pore space of finely dispersed sediments at negative temperatures. As demonstrated by the experimental results, accumulation of pore methane hydrate in ice-bearing clays saturated with gas is possible in significant amounts even at sufficiently low temperatures (−6.5 °С). The experiments were run using a specially designed system, which allows studying the gas hydrate accumulation kinetics in the pore space of frozen sediments. The conducted research allowed to evaluate the clay component effect on the rate of pore methane hydrate accumulation in frozen sands, and provided valuable insights about pore gas hydrate accumulation in clay soils depending on ice saturation. The hydrate accumulation kinetics and structure and textural features of frozen hydrate saturated loam samples with different initial size of ice inclusions were investigated.

Translated title of the contributionEstimation of potential gas-hydrate formation in finely dispersed soils at negative temperatures: Experimental modeling
Original languageRussian
Pages (from-to)25-33
Number of pages9
JournalEarth's Cryosphere
Volume24
Issue number4
DOIs
Publication statusPublished - 2020

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