| 大陆天然气水合物的资源开发与环境研究刍议 |
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| 引用本文：刘玉山,吴必豪.2011.Continental natural gas hydrate, its resource and perspective for exploration[J].Mineral Deposits,30(4):711~724 |
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| 中文摘要:天然气水合物分为大陆型和海洋型两大类。大陆型天然气水合物矿床常赋存于永久冻土带，如西伯利亚，加拿大北部，阿拉斯加。近年来，中国在青海木里的冻土带也发现了天然气水合物，它们赋存在1 000 m深的砂岩和泥岩层中。大陆天然气水合物的资源量是相当巨大的,估计约为 (1～7.4)×1014m3甲烷。 现在科学家已经研究出从冻土带水合物中开采甲烷的技术和方法，主要有降压开采法、热激开采法和试剂注入开采法3种，其中，降压开采法被认为是较经济有效的。 |
| 中文关键词:地质学 天然气水合物 大陆水合物 水合物的开采 |
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| Continental natural gas hydrate, its resource and perspective for exploration |
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| Abstract:There are two kinds of natural gas hydrates in the earth: oceanic and continental. The continental hydrate deposits usually occur in permafrost regions such as Siberia, northern Canada and Alaska. Recently China has found gas hydrates in Muli permafrost region of Tibetan plateau. They are existent in sandstone and siltstone beds less than 1 000 m in depth. The continental hydrate reservoir is quite huge in size and the reserve is estimated to be about (1～7.4)×1014 m3 methane. Nowadays scientists have studied the suitable technologies to extract methane from hydrate in permafrost region. There are mainly three methods for exploration, i.e., depressurization, thermal stimulation and inhibitor injection. The depressurization method is considered to be more economical and effective than other means. |
| keywords:geology, natural gas hydrates, continental hydrate, exploitation of hydrate |
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