黄建军,周阳,滕宏泉,梁欣阳,高晶波,曹晓凡,薛胜泽,崔阳.关中盆地西安凹陷地热水赋存特征及其资源量估算[J].西北地质,2021,54(1):196-203 HUANG Jianjun,ZHOU Yang,TENG Hongquan,LIANG Xinyang,GAO Jingbo,CAO Xiaofan,XUE Shengze,CUI Yang.On the Occurrence Characteristics and the Estimation of Geothermal Water in Xi'an Sag, Guanzhong Basin[J].Northwestern Geology,2021,54(1):196-203
关中盆地西安凹陷地热水赋存特征及其资源量估算
On the Occurrence Characteristics and the Estimation of Geothermal Water in Xi'an Sag, Guanzhong Basin
投稿时间:2020-01-16  修订日期:2020-06-27
DOI:10.19751/j.cnki.61-1149/p.2021.01.017
中文关键词:  关中盆地;地热水;西安;资源;特征
英文关键词:Guanzhong basin;geothermal water;Xi'an;resources;characteristics
基金项目:陕西省公益性地质调查项目“关中平原城市群浅层地温能开发利用潜力评价及环境效应研究”(201915),中国地质调查局调查项目“陕西省关中盆地地热资源调查评价”(1212010535416)项目资助
作者单位
黄建军 陕西省地质调查院, 陕西 西安 710054 
周阳 陕西省地质调查院, 陕西 西安 710054
陕西省水工环地质调查中心, 陕西 西安 710068 
滕宏泉 陕西省地质调查院, 陕西 西安 710054
陕西省水工环地质调查中心, 陕西 西安 710068 
梁欣阳 陕西省地质调查院, 陕西 西安 710054
陕西省水工环地质调查中心, 陕西 西安 710068 
高晶波 西北农林科技大学资源环境学院, 陕西 杨凌 712100
农业部西北植物营养与农业环境重点实验室, 陕西 杨凌 712100 
曹晓凡 西安科技大学地质与环境学院, 陕西 西安 710054 
薛胜泽 西安科技大学地质与环境学院, 陕西 西安 710054 
崔阳 西安科技大学地质与环境学院, 陕西 西安 710054 
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中文摘要:
      地热资源的开发利用有助于调整能源结构、提高环境质量和治污减霾。关中盆地西安凹陷地热水赋存条件较好,资源量丰富,地热水具备规模化开发利用的基础。目前,未见关于西安凹陷地热储层划分及资源量的研究。将西安凹陷地热水热储层分为红河-白鹿塬组、新近系的冷水沟-寇家村组、蓝田灞河组、张家坡组4类,对其系统分析每类热储层的储盖特征、地层岩性、沉积相等。通过地热水水化学分析,认为在纵向上,西安凹陷地区地热水赋存环境越往下部封闭性越强;在平面上,西安凹陷中部地区的环境相对较为封闭,而南部、北部为相对开放的化学环境。结合区域地温资料,分别计算了西安凹陷地区洪积平原和冲积平原的恒温层深度,分析了区域20 m、500 m、1 500 m、2 000 m深度处的地温场特征及区域地温梯度特征。采用体积法评价了西安凹陷地热水的总体积储量、总弹性储量、总静储量。总体积储量为5 270.96×108 m3,总弹性储量为16.89×108 m3,总静储量为5 287.85×108 m3。通过对西安凹陷地区地热水资源规律的研究,认为该地区地热水资源储量丰富,热储层的埋藏相对比较稳定,开发利用的风险较小,推进该地区地热水的开发利用对治污减霾、调整能耗结构及改善民生都具有积极的意义。
英文摘要:
      The development and utilization of geothermal resources is of help to adjust the energy structure, to improve environmental quality and to reduce pollution. The geothermal water in Xi'an sag of Guanzhong Basin has good occurrence conditions and abundant resources for large-scale development and utilization.Few research has been conducted yet on the division and the amount of the geothermal resources in Xi'an sag. In this paper, the geothermal reservoirs in Xi'an sag are divided into four types:Honghe Bailuyuan Formation, lengshuigou koujiacun Formation, Lantian Bahe Formation and Zhangjiapo Formation. The authors systematically analyzes the reservoir cap characteristics, formation lithology and sedimentary equality of each type. Through the chemical analysis of geothermal water, it is considered that in the vertical direction, the geothermal water storage environment is more closed in the deeper part while in plane,the environment is relatively closed in the middle part.In the south and the north,the chemical environment is relatively open. Combined with the regional geo-temperature data, the paper calculates the depth of the constant temperature layer of the proluvial plain and the alluvial plain, and analyzes the characteristics of the geotemperature field and the regional geotemperature gradient at the depth of 20m, 500m, 1500m and 2000m. Using the volume method, this paper evaluates the total volume reserves, total elastic reserves and total static reserves of geothermal water in Xi'an sag.The total volume reserves are 5270.96×108m3, total elastic reserves are 16.89×108m3 and total static reserves are 5287.85×108m3. On the basis of the studies of geothermal water resources in Xi'an sag, the authors hold that the area is rich in geothermal water resources. The stability of the thermal reservoirs makes it relatively safe for development and utilization. Development and utilization of geothermal water in the area is of significance to control pollution and reduce haze, to adjust energy consumption structure, and to improve people's livelihood as well.
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