| 地热资源潜力评价——以鄂尔多斯盆地部分地级市和重点层位为例 |
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| 引用本文： | 刘润川, 任战利, 叶汉青, 任文波, 王琨, 淮银超, 祁凯. 地热资源潜力评价——以鄂尔多斯盆地部分地级市和重点层位为例[J]. 地质通报, 2021, 40(4): 565-576. |
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| 作者姓名： | 刘润川 任战利 叶汉青 任文波 王琨 淮银超 祁凯 |
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| 作者单位： | 1.西北大学地质学系, 陕西 西安 710069; 2.西北大学大陆动力学国家重点实验室, 陕西 西安 710069; 3.中国科学院地质与地球物理研究所岩石圈演化国家重点实验室, 北京 100029 |
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| 基金项目： | 国家重点研发计划《砂岩热储层采灌增效技术及装备》子课题《未固结砂岩热储层保护与增效钻完井技术及材料》（编号：2019YFB1504201）、国家自然科学基金重点项目《鄂尔多斯、沁水沉积盆地中生代晚期古地温场对岩石圈动力学演化及油气赋存的约束作用》（批准号：41630312） |
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| 摘 要： | 针对鄂尔多斯盆地地热资源储量认识不统一、浅层地热能开发方式不明确、地热资源有利层位及有利区划定有分歧的3个问题，采用不同的评价方法分别对鄂尔多斯盆地水热型地热资源、浅层地热能和干热岩型地热资源进行了潜力和远景评估，结合地热资源的开发利用方式和效益对鄂尔多斯盆地的地热资源进行了综合分析。分析结果表明，鄂尔多斯盆地地热资源相对丰富，盆地内部分层位水热型地热资源量折合标准煤249.4×108 t，地热资源年可开采量折合标准煤748.1×104 t；7个地级以上城市浅层地热能资源年可采量折合标准煤281.2×104 t；干热岩潜力资源量折合标准煤16.63×1012 t。盆地内部地热资源有利区主要分布于榆林-横山-靖边及子长-安塞-延安一带。目前鄂尔多斯盆地0~200 m浅层地热能开发主要以地埋管地源热泵为主，地下水源热泵为辅。200~6000 m中深层地热资源开发主要以深埋管换热方式和采灌结合方式开采。开发地热能，节能减排效果明显，值得大力推广。
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| 关 键 词： | 水热型地热资源 浅层地热能 高温干热岩 有利区 开发方式 鄂尔多斯盆地 |
| 收稿时间： | 2019-09-23 |
| 修稿时间： | 2020-12-29 |
Potential evaluation of geothermal resources: exemplifying some municipalities and key strata in Ordos Basin as a study case |
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| LIU Runchuan, REN Zhanli, YE Hanqing, REN Wenbo, WANG Kun, HUAI Yinchao, QI Kai. Potential evaluation of geothermal resources: exemplifying some municipalities and key strata in Ordos Basin as a study case[J]. Geological Bulletin of China, 2021, 40(4): 565-576. |
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| Authors: | LIU Runchuan REN Zhanli YE Hanqing REN Wenbo WANG Kun HUAI Yinchao QI Kai |
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| Affiliation: | 1.Department of Geology, Northwest University, Xi'an 710069, Shaanxi, China; 2.State Key Laboratory for Continental Dynamics, Northwest University, Xi'an, 710069, Shaanxi, China; 3.State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China |
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| Abstract: | There exists debate in the geothermal field of Ordos Basin, including ambiguous understanding of geothermal resources reserves, nubilous development mode of shallow geothermal energy and difference in the delimitation of favorable horizon and prospects.Different evaluation methods were used to evaluate the potential and prospect of hydrothermal geothermal resources, shallow geothermal energy and dry hot rock geothermal resources in Ordos Basin.Combined with the development mode and benefit of geothermal resources, the geothermal resources in Ordos Basin was comprehensively analyzed.The analysis results show that Ordos Basin is relatively rich geothermal resources.The geothermal resources of hydrothermal type is equivalent to 24.94 billion tons of standard coal.The annual exploitable amount of geothermal resources is equivalent to 7.481 million tons of standard coal.The annual recoverable amount of shallow geothermal energy resources in 7 cities above prefecture level is equivalent to 2.812 million tons of standard coal, and the potential resources of dry hot rock are equivalent to 16.63 trillion tons of standard coal.The favorable areas of geothermal resource in the basin are mainly distributed in Yulin City -Hengshan County-Jingbian County and Zichang County Ansai County Yan'an City.At present, the development of 0~200 m shallow geothermal energy in Ordos Basin is mainly based on ground source heat pump, supplemented by ground water source heat pump.The development of 200~6000 m deep geothermal resource is mainly by the way of deep buried pipe heat exchange and the combination of mining and irrigation.Because of the obvious effect of geothermal energy development, energy conservation and emission reduction, it is worth promoting vigorously. |
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| Keywords: | hydrothermal geothermal resources shallow geothermal energy high temperature dry hot rocks favorable areas development methods Ordos Basin |
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