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METHOD OF DETERMINING THE THERMAL CONDUCTIVITY OF DISPERSED GAS-SATURATED SEDIMENTS UNDER CONDITIONS OF HYDRATE AND ICE FORMATION
Session: Laboratory and Insitu Testing in Cold Regions / Essais en laboratoires et essais in situ pour les régions nordiques
Evgeny Chuvilin, Moscow State University (Russia)
Boris Bukhanov, Skolkovo institute of science and technology (Skoltech) (Russia)
Gennagy Brovka, Nature Management Institute (Belarus)
This paper presents a new method of experimental investigation of thermal conductivity of fine-grained gas-saturated sediments during hydrate accumulation at temperatures above and below 0°C. The testing was conducted with a special gas hydrate experimental setup featuring an integrated measurement system for measuring thermal conductivity of the fine-grained sediments under high gas pressure. Measurements of soil thermal conductivity were carried out in steady-state thermal mode (the stationary thermal method). This method allows to quantify the impact of hydrate saturation and the extent of pore water to hydrate transition on the thermal conductivity of the fine-grained sediments.
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