世界干热岩地热资源开发进展与地质背景分析
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注: 本文为 中国石化科技项目“中国典型地热田地热水水化学特征对比研究”(编号:JKL18033)、“干热岩勘探开发关键工程技术研究”(编号:JP17013)的研究成果。


Theglobal development process of Hot Dry Rock (Enhanced Geothermal System) and its geological background
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    内容提要: 干热岩资源指内部不存在或仅存在少量流体,温度高于180℃的异常高温岩体,是一种极具潜力的地热资源类型。自20世纪70年代美国Fenton Hill项目实施以来,已在全球14个国家实施了41个干热岩开发项目,以干热岩储层建造和连通的目标地层周围或上部是否存在水热型储层为标准,25个属于传统意义的干热岩开发项目,16个属于增强型地热系统(Enhanced Geothermal System或Engineered Geothermal System,缩写为EGS)。从板块构造角度分析,这些干热岩开发项目主要分布在欧亚板块板内地热域、印澳板块板内地热域、东太平洋离散—汇聚板缘型地热域、西太平洋汇聚板缘型地热域和加勒比海火山活动岛弧区。按照盆地类型划分,全球干热岩开发项目所处的大地构造背景包括克拉通盆地、前陆盆地、裂谷盆地、弧前盆地、弧后盆地、近现代火山(火山带)和褶皱带地区,其中以欧洲阿尔卑斯褶皱带磨拉石盆地为代表的前陆盆地,和以欧洲阿尔卑斯褶皱带上莱茵地堑、北美新生代科迪勒拉造山带内华达盆地裂谷盆地是全球干热岩开发项目最为集中的两种盆地类型。考虑我国干热岩资源分布情况,上莱茵地堑、内华达盆地的干热岩开发历程对我国干热岩资源的勘探和开发具有一定的借鉴作用。

    Abstract:

    Abstract: Hot dry rock is one kind of geothermal energy with great development potential. It refers to the rocks with a temperature higher than 180℃ and does not exist or only exists a small amount of fluid inside. Since the built of Fenton Hill project in the United States in 1970s, 41 hot dry rock (EGS) projects were constructed in 14 countries around the world. Based on the existence of hydrothermal reservoirs around or above the hot dry rock, the 41 projects can be divided into two types, 25 belong to traditional hot dry rock systems and 16 belong to enhanced geothermal systems (EGS). From the point of plate tectonic, these hot dry rock(EGS) projects are mainly distributed in the thermal realm of the Eurasian plate interior, the India-Australian plate interior, the divergence and convergent plate margin of the eastern Pacific Ocean, the convergent plate margin of the western Pacific Ocean, and the volcanic island arc area of the Caribbean Sea. From the point of basin type, craton basin, the foreland basin, the rift basin, the fore-arc basin/ back-arc basin, the modern volcanic (volcanic belt) and fold belt region are the main structural settings of the hot dry rock (EGS) projects. Among them, the foreland basin which represented by Molasse basin in the European Alps fold belt, and the rift basin which represented by Upper Rhine Graben in the European alpine fold belt and Nevada basin in the north American Cordillera orogenic belt are the two main basin type with a large number of hot dry rock (EGS) projects. Considering the distribution of China’s hot dry rock, the development experiences of the Upper Rhine Graben and the Nevada basin will be valuable for exploring and developing dry hot rock (EGS) in China.

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引用本文

毛翔,国殿斌,罗璐,王婷灏.2019.世界干热岩地热资源开发进展与地质背景分析[J].地质论评,65(6):1462-1472,[DOI].
MAO Xiang, GUO Dianbin, LUO Lu, WANG Tinghao.2019. Theglobal development process of Hot Dry Rock (Enhanced Geothermal System) and its geological background[J]. Geological Review,65(6):1462-1472.

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  • 收稿日期:2019-04-21
  • 最后修改日期:2019-10-08
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  • 在线发布日期: 2019-11-15
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