摘要
采用数学统计法和对井功率法两种地热供暖潜力的估算方法,分别计算北京市10个地热田的地热资源量,用来重新估算北京市地热能的供暖潜力。估算结果表明:在抽灌井间距为300 m的条件下,对井抽灌系统的热影响范围为36×10~4m^2,每平方公里热田范围内可容纳的地热井抽灌系统约2.78个;在地热水100%回灌条件下,采用对井抽灌方式,抽灌井间距为300 m时,利用统计法计算的北京市10个地热田(面积为2 760 km^2)的可供暖潜力为2.75×10~8m^2,利用对井功率法计算的北京市地热供暖潜力为3.01×10~8m^2;采用地热梯级利用,结合其他辅助清洁能源调峰方式,全市热田面积内可供暖面积为8.60×10~8m^2。采用对井系统供暖可大大提高布井密度,有助于推进北京甚至全国范围内地热供暖的发展。
This paper uses statistical and double wells power methods to estimate their geothermal resource of ten geothermal fields in Beijing and re-estimate their geothermal potential. The heat-influencing range of double pumping- filling wells is 360k square meters at their space of 300m, which can hold 2.28 double pumping-filling units per square kilometer. The available heating potential will be 275 million square meters by statistical method, in Beijing＇s ten geothermal fields under above conditions, and 301 million square meters by double wells power method. It could be up to 860 million square meters if geothermal graded using combined with other clean energy aids. Heating supply by using double wells system can increase well distribution density, helpful to promote the development of geothermal heating in Beijing, and in China.
作者
于湲
周训
沈晔
赵敬波
YU Yuan ZHOU Xun SHEN Ye ZHAO Jing-bo(School of Water Resource and Environment, China University of Geosciences, Beijing 100083, China Beijing Bureau of Geology and Minerals Exploration ＆ Development, Beijing 100195, China MOE Key Laboratory of Groundwater Circulation and Evolution, China University of Geosciences, Belting 100083, China Belting Research Institute of Uranium Geology, Beifing 100029, China)
出处
《资源与产业》
2017年第2期82-88,共7页
Resources & Industries
基金
北京市自然科学基金项目(8152026)
关键词
数学统计法
对井功率法
梯级利用
地热利用
供暖潜力
北京市
statistic method
double wells power method
graded using
geothermal use
heating supply potential
Beijing city
