| 我国陆区干热岩资源潜力估算 |
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| 关键词:hot dry rock heat flow resources potential estimation |
| 基金项目:863计划项目“干热岩地热地质资源评价与开发技术研究”(编号: 2012AA052802);地质调查项目“全国地热资源调查评价专题和综合研究”(编号: 1212011120064) |
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| 摘要: |
| An Estimation of HDR Resources in China’s Mainland |
| As a clean renewable geothermal resource, the hot dry rock has been more and more maturely utilized with obviously increasing values. Located at the junction of three tectonic plates with vast territory, China possesses abundant hot dry rock storage. Based on an analysis of terrestrial heat flow, rock thermal conductivity at different depths, radioactive heat generation and radioactive depth variable constant, the authors estimated the terrestrial temperature at different depths by calculating the measured temperatures from shallow strata to the depth of the crust. Then the hot dry rock resource amount at the depth of 3000–10000 m was estimated by virtue of the volume method. The results show that the resource amount at the depth of 3000–10000 m could reach 2.5×1025 J, which is equivalent to the heat of 860 trillion tons of standard coal. This resource is estimated to be 5,200 times that of the current total energy consumption on the basis of 2% of the exploitable resources amount. The hot dry rock amount at the depth of 3500–7500 m and between the temperature of 150–250℃ is estimated to reach 6.3×106 EJ, which could yield 126000 EJ on the basis of 2% of exploitable resources amount, around 1320 times that of the total energy consumption in 2010, thus demonstrating a promising utilization potential. |
| LIN Wen-jing,LIU Zhi-ming,MA Feng,LIU Chun-lei,WANG Gui-ling.2012.An Estimation of HDR Resources in China’s Mainland[J].Acta Geoscientica Sinica,33(5):807-811. |
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