关于天然气水合物钻采工艺技术进展的研究

STATUS OF RESEARCH ON NATURE GAS HYDRATE DRILLING AND PRODUCTION TECHNIQUES

目前全球正面临着前所未有的能源危机,天然气水合物由于储量大、能量密度高而将成为一种诱人的新型能源。天然气水合物主要存在于冻土带和海洋,在地下处于低温和高压状态,以现有的技术,钻井和开采都存在很大的困难。简要介绍了天然气水合物的性质及储量,阐述了天然气水合物钻井的六个挑战及目前国外天然气水合物的两种钻探方法;同时阐述了以热力法、降压法和化学试剂注入法为主的天然气水合物开采方法,并针对天然气水合物钻采技术现状指出了下一步的研究方向。

As a kind of new hydrocarbon resources,the natural gas hydrate is of very great potential in the coming energy resources of mankind. Gas hydrate is chiefly present in tundra and ocean under the low temperature and high pressure environment. It is difficult to drill and produce the gas hydrate depending on the present technology. The property and reserves of nature gas hydrate is simply introduced. Six challenges and two ways of drilling of gas hydrate are discussed. At the same time, the production means of gas hydrate including heating、depressurizing and loading chemical are discussed. Finally, the next research trend of drilling and production of gas hydrate are pointed out.