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| 共和盆地干热岩特征及利用前景 | |
| 引用本文： | 严维德.共和盆地干热岩特征及利用前景[J].科技导报(北京),2015,33(19):54-57. |
| 作者姓名： | 严维德 |
| 作者单位： | 1. 中国地质大学(武汉)环境学院, 武汉 430074; 2. 青海省水文地质工程地质环境地质调查院;青海省水文地质及地热地质重点实验室, 西宁 810008 |
| 基金项目： | 青海省地勘基金项目(青国土地矿(2013)137号) |
| 摘 要： | 2011年以来,国家及青海省政府在青海省海南藏族自治州共和县恰卜恰镇地区相继开展了一批地热资源勘察工作,发现共和盆地基底由印支期花岗岩组成,岩体地温梯度异常明显,最高可达11.5℃/100 m,2200 m左右温度达到150℃,3000 m岩体温度接近200℃,预计4000 m时温度可达260℃以上,表明盆地具有分布广泛、埋深相对浅的干热岩资源。利用此干热岩资源,不仅填补中国新能源利用的一项空白,而且对当地人居条件改善、工农业发展具有现实意义。 |
| 关 键 词： | 干热岩 共和盆地 工程地热系统 地温梯度 |
Characteristics of Gonghe Basin hot dry rock and its utilization prospects |
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| YAN Weide.Characteristics of Gonghe Basin hot dry rock and its utilization prospects[J].Science & Technology Review,2015,33(19):54-57. | |
| Authors: | YAN Weide |
| Institution: | 1. School of Environmental Studies, China University of Geosciences, Wuhan 430074, China; 2. Key Laboratory of Hydrogeology and Geothermal Geology of Qinghai Province, Qinghai Institute of Hydrogeology, Engineering Geology and Environmental Geology, Xining 810008, China |
| Abstract: | The national and local governments have carried out a series of explorations of geothermal resources in the Chapcha (Qia-bu-qia) region, Gonghe County, Hainan Tibetan Autonomous Prefecture in Qinghai Province since 2011. It has been discovered that Gonghe Basin substrate is composed of the indosinian granite with a significantly high geothermal gradient up to 11.5℃/100 m. The temperature reached 150℃ at the level of 2200 m and was close to 200℃ at 3000 m and was estimated to be 260℃ at 4000 m, indicating that the basin has widely distributed hot dry rock in relatively shallow depth. Utilization of such hot dry rock resources will not only fill up the gap in China's new energy utilization, but also improve local residents'living conditions as well as develop local industry and agriculture. |
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