Thermophysical properties of gas hydrate in porous media

Abstract

Gas hydrates are very important compounds due to their capacity to store large volumes of gases. From the viewpoint of maintenance process of gas hydrates in the sediments, thermophysical properties such as thermal conductivity, dissociation heat, and heat capacity play important roles. The thermal-time-domain reflection (TDR) method is a relatively new technique to acquire thermophysical properties of sediments with different hydrates saturation. In this chapter, a detailed introduction of thermal-TDR method is clarified, especially on hydrates research field. Experimental data such as thermal conductivity and volumetric heat capacity of different measurement conditions are listed. Besides, an experiment technique to investigate thermal-stimulating dissociation of gas hydrates is introduced, which can provide some fundamental data used for the hydrates resource exploitation program.