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在定容的条件下,实验研究了甲烷水合物在不同的多孔介质中的生成特性,所使用的多孔介质平均孔径为9.03,12.95,17.96与33.20 nm,其中孔径为12.95 nm的多孔介质使用了三个粒径范围,分别为0.105～0.150 mm,0.150～0.200 mm,0.300～0.450 mm;其他孔径的多孔介质的粒径范围为0.105～0.150 mm.实验的温度范围为274.15～278.15 K,初始生成压力范围为7.4～11.0 MPa.实验表明,水合物的生成速度随着初始生成压力的升高与水浴温度的降低而增大,随着多孔介质粒径的增大与孔径的减小而降低.
Under constant volume conditions, the formation characteristics of methane hydrate in different porous media were experimentally studied. The average pore sizes of porous media used were 9.03, 12.95, 17.96 and 33.20 nm, and the porous media with pore size of 12.95 nm The three particle sizes ranged from 0.105 to 0.150 mm, from 0.150 to 0.200 mm and from 0.300 to 0.450 mm, respectively. The particle sizes of porous media with other pore sizes ranged from 0.105 to 0.150 mm. The experimental temperature ranges from 274.15 to 278.15 K, The pressure range is 7.4 ~ 11.0 MPa.The experiments show that the formation rate of hydrate increases with the initial formation pressure and the decrease of water bath temperature, decreases with the increase of pore size and pore size of porous media.