祁连山永久冻土带天然气水合物钻探工艺与应用

刊出日期: 2011-12-15

Research and application of the natural gas hydrate drilling technique in Qilian Mountain permafrost

Publish Date: 15 December 2011

摘要: 大量的研究和钻探取样证明，不仅海洋深处存在着天然气水合物，陆地永久冻土带也存在天然气水合物。从目前的地质探测技术发展现状看，确定冻土层水合物的储藏深度、含量等物理化学特性还必须靠取样钻探技术。论述了全球陆地永久冻土带天然气水合物的钻探现状，介绍了陆地永久冻土带天然气水合物取心钻具的结构设计、试制过程和在海拔4200m的青海祁连山地区进行永久冻土带天然气水合物钻探技术研究过程中取得的成果。
- 永久冻土带 /
- 天然气水合物 /
- 钻具 /
- 钻探取样
Abstract: Large quantities of research and drilling sampling work shows that gas hydrates(GH) exist not only in the deep ocean but also in the permafrost zone. Viewed from the development status of the geological exploration, the determination of the storage depth, content and other physical and chemical properties of the GH has to depend on the drilling technique. The global research status of the GH in the permafrost is expounded and the drilling tool design and manufacture process and research achievements of the GH at 4200m above the sea level are described in this paper.
- permafrost zone /
- natural gas hydrate /
- drilling tool /
- drilling and sampling