论文部分内容阅读
用可探测土壤内部水含量变化的pF-meter探头开展了甲烷水合物形成与分解过程中多孔介质内部水含量变化研究,结果表明,该新型研究方法可有效探测实验过程中多孔介质内水含量变化。通过研究指出:水合物生成时会对介质内的水产生吸力,将水向水合物处抽吸;水合物分解时会释放水,使介质内水含量增大;温度升高会使存于多孔介质内毛细管中的水向下流动;水合物在粉土中的二次形成范围比一次形成范围更大。
The pF-meter probe, which can detect the change of water content in soil, was used to study the change of water content in porous media during the formation and decomposition of methane hydrate. The results show that this new method can effectively detect the change of water content in porous media during the experiment . It is pointed out through the research that when the hydrate is formed, it will draw water to the water in the medium and draw the water to the hydrate. When the hydrate decomposes, water will be released to increase the water content in the medium. The water in the capillary in the medium flows downwards. The secondary formation of hydrate in silt is larger than the one-time formation.