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岩心样品的获取可为天然气水合物围岩特征的研究提供珍贵的第一手资料。作者在详细收集全球水合物样品资料的基础上,对天然气水合物赋存围岩进行了对比研究,结果表明:天然气水合物更容易赋存在细粒沉积物中,其原因可能是细粒沉积物在孔隙度、渗透率、塑性变形能力等方面比粗粒沉积物适合于天然气水合物的发育和赋存。
The acquisition of core samples can provide precious first-hand information for the study of the characteristics of gas hydrate surrounding rocks. Based on a detailed collection of global hydrate samples, the authors have conducted a comparative study on the gas hydrate-hosted rock. The results show that gas hydrates are more likely to be present in fine-grained sediments, probably due to fine-grained sediments It is more suitable for the development and occurrence of gas hydrate than the coarse sediments in terms of porosity, permeability and plastic deformation.