Recent discoveries of natural gas hydrates in permafrost and sub‐oceanic environments have led us to measure the thermal conductivity of methane hydrate. A guarded hot‐plate cell was constructed and tested with various ice specimens. We find the conductivity of methane hydrate near −60°C is 0.45 W/mK, a value close to that obtained for other clathrate hydrates by us and others. It is much lower than for ice (by a factor of about 5), so that a logging tool based on this property should prove to be of use in identification of gas hydrates in permafrost zones.
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Cook et al. (1983) studied this question.
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