摘要
干热岩（ＨＤＲ－ｈｏｔ ｄｒｙ ｒｏｃｋ）是应用前景很好的清洁、可再生能源，其研究与开发仅有２０余年历史，但已经表现出巨大的利用价值和发展潜力。美国芬顿山和日本肘折地区是干热岩研究开发的成功范例。干热岩技术的原理是：通过钻井向地下深处的高温岩体中注入低温水，这些水在地下成为高温高压超临界流体，并使岩体产生具有一定方位的裂隙系统，形成热储构造；然后在适当位置钻一眼或几眼生产井贯穿热储构造，用于提取热能。根据热量提取分析可知干热岩在相当长的时间内保持稳定的热量提取速率，具有很高的实用经济价值。此外，干热岩在水岩相互作用、深部精细地球物理方法和裂隙系统三维模拟等方面具有极高的科学研究价值。
Hot dry rock(HDR) is a kind of clean, renewable energy in possession of a bright future. The history of HDR's research and exploitation in advanced countries is no more than 20 years, but HDR has exhibited enormous value in natural energy potential. Fenton Hill of U. S. A and Ogachi of Japan are two successful examples. Through deep wells, the low- temperature water is injected to high-temperature (over 200℃) rock they. The water is heated and becomes high-temperature, high-pressure super-critical fluid and causes an orientating fracture system, and the reservoir structure comes into being. Then one or several output wells penetrating reservoir structure are drilled to extract heat energy transferred by steam and hot water. Heat-extracting rate can keep steady during a long time according to the analysis of extracting energy from HDR, which is believed to have a high application potential. Be-' sides, HDR is of high value for fundamental scientific research such as water-rock interaction, precise geophysics of deep crust and 3-D modeling of deep fracture system.
出处
《世界地质》
CAS
CSCD
2001年第1期43-51,共9页
World Geology
