Gas Hydrate in the Qilian Mountain Permafrost and Its Distribution Characteristics

详细信息   

• 责任者：Wang Pingkang (Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Zhu Youhai
• 刊名：Geological Bulletin of China
• 出版年：2011
• 卷期：30(12)
• 关键词：天然气水合物 ; gas hydrates ; 多年冻土 ; permafrost ; 祁连山 ; Qilian Mountains
• 页码：p.1839-1850
• 图表：5 illus., 1 plate, 3 tables, 20 refs.
• 分类号：1003
• issnNo：ISSN1671-2552
• isbnNo：CN11-4648/P

摘要

 
    

The Scientific Drilling Project of Gas Hydrate in Qilian Mountain permafrost was implemented during 2008~2009. Based on a study of ten aspects of gas hydrate characteristics, the authors consider that gas hydrates mainly occur in Middle Jurassic Jiangcang Formation and hosted under the permafrost zone in the 133.0~396.0 m interval. The reservoir rocks of gas hydrate are composed of siltstone, oil shale, mudstone, fine sandstone and a small amount of medium-grained sandstone. It is thus concluded that the fracture system plays an important role in the control of the distribution of gas hydrate in this area.