The Determination of Capillary Properties of Finely Porous Medium by the Water Crystallization Onset

Tyumen State University Herald. Physical and Mathematical Modeling. Oil, Gas, Energy


Release:

2016, Vol. 2. №1

Title: 
The Determination of Capillary Properties of Finely Porous Medium by the Water Crystallization Onset


About the authors:

Zoya A. Ishkova, Staff Member at the Institute of the Earth’s Criosphere Siberian Branch of the Russian Academy of Sciences; z.ishkova@yandex.ru

Vladimir S. Kolunin, Dr. Sci. (Geol.-Mineral.), Tyumen State Oil and Gas University; Institute of the Earth’s Criosphere Siberian Branch of the Russian Academy of Sciences; askold@ikz.ru

Abstract:

This paper presents the results of a study of capillary properties of water-saturated porous ceramics from ice and air penetration through it. A method for determining the maximal size of the through pore based on the measurement of temperature of water crystallization onset is described. The temperature at which ice penetrates into the ceramics, the temperature of crystallization onset, and the maximum size of the through channel by the bubble point method were experimentally determined. The correlation dependence between the temperature of ice penetration and gas pressure at the bubble point was constructed on the experimental data. The obtained value of the surface tension coefficient of “water-ice” (0,039 J/m2) is in good agreement with the results published earlier.

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