唐口煤矿地热资源开发及利用研究
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摘要
为了对山东唐口煤矿矿井深部地热资源进行利用,根据唐口煤矿矿区地质资料和水文钻孔资料,对矿区奥陶系地热资源形成原因和赋存状况进行调查,提出了一种利用矿井原有井巷工程进行矿井地热水开采的模型,根据矿区多种余热资源的赋存情况,提出了矿山地热资源综合利用方案。研究结果表明:在上覆厚盖层和区内大断裂的影响下,唐口矿区地热资源主要赋存于矿区南部的奥陶系地层,储层地热水平均水温44℃,地热水具有腐蚀性但不易结垢;在矿区南部井下硐室钻凿地热井,设计同层两采一灌钻井,抽采的地热水经管道运输至井上,在地面换热站实现集中换热,可满足3 000m~3/d的热水供应;矿区热储层地热资源总量为5.02×10~(17)J,并结合矿区矿井排水、矿井回风、矿区生活用水中的可利用热源,可实现日功率为12.45 MW的热量供应。矿井地热资源的开发利用,可以达到节能减排和保护矿区环境的目的,为我国矿山地热发展和绿色矿山建设提供新思路。
In order to utilize deep geothermal resources of Shandong Tangkou Coal Mine from deep ground,based on the geologic data and hydrological drilling data of Tangkou Coal Mine,a survey was made on account of the genetic reason and occurrence condition of Ordovician geothermal resources in the mine,a geothermal water exploitation model was proposed by using existing roadway and shaft in the coal mine. According to the occurrence conditions of different heat sources,an integrated utilization scheme about mine geothermal resource was presented. Research showed that under the influence of thick strata layers and major deep fault,the geothermal resources of Tangkou coal mine was mainly occurred in the Ordovician strata in the south of the mine,the average temperature of geothermal water was 44 ℃ and the water was corrosive but not easy to scale. Geothermal wells were drilled in the underground drilling chamber,by using the production model of two production wells and one injections in the same layer,the geothermal water was piped to the ground heat exchange station to conduct centralized heat exchange,which can provide a hot water supply of 3 000 m~3 per day. The total amount of geothermal resources in thermal reservoir was 5.02×10~(17)J,combined with other available resources,mine drainage,mine waste wind and mine life water,it could provide a heat supply of 12.45 MW.Developing and using the mine geothermal resources can reduce the carbon emissions and protect the mine environment,which provides new ideas for the development of mine geothermal science and the construction of green mines.
In order to utilize deep geothermal resources of Shandong Tangkou Coal Mine from deep ground,based on the geologic data and hydrological drilling data of Tangkou Coal Mine,a survey was made on account of the genetic reason and occurrence condition of Ordovician geothermal resources in the mine,a geothermal water exploitation model was proposed by using existing roadway and shaft in the coal mine. According to the occurrence conditions of different heat sources,an integrated utilization scheme about mine geothermal resource was presented. Research showed that under the influence of thick strata layers and major deep fault,the geothermal resources of Tangkou coal mine was mainly occurred in the Ordovician strata in the south of the mine,the average temperature of geothermal water was 44 ℃ and the water was corrosive but not easy to scale. Geothermal wells were drilled in the underground drilling chamber,by using the production model of two production wells and one injections in the same layer,the geothermal water was piped to the ground heat exchange station to conduct centralized heat exchange,which can provide a hot water supply of 3 000 m~3 per day. The total amount of geothermal resources in thermal reservoir was 5.02×10~(17)J,combined with other available resources,mine drainage,mine waste wind and mine life water,it could provide a heat supply of 12.45 MW.Developing and using the mine geothermal resources can reduce the carbon emissions and protect the mine environment,which provides new ideas for the development of mine geothermal science and the construction of green mines.
引文
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[19]DZ 40—85,地热资源评价方法[S].
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[2]张源,万志军.巷道围岩温度场及其实验方法[M].徐州:中国矿业大学出版社,2016:2-3.
[3]黄炳香,赵兴龙,张权.煤与煤系伴生资源共采的理论与技术框架[J].中国矿业大学学报,2016,45(4):653-662.HUANG Bingxiang,ZHANG Xinglong,ZHANG Quan.Framework of the theory and technology for simultaneous mining of coal and its associated resources.[J]Journal of China University of Mining and Technology,2016,45(4):653-662.
[4]刘建功.煤矿低温热源利用技术研究与应用[J].煤炭科学技术,2013,41(4):124-128.LIU Jiangong.Study and application of mine low temperature thermal resources utilization technology[J].Coal Science and Technology,2013,41(4):124-128.
[5]高强.矿井水源热泵系统优化设计与经济性评价分析[D].北京:北京建筑大学,2012:4-5.
[6]SCOTTJ A,HALL A,SHANG H,et al.The potential for sustainable energy recovery from a working mine[C]//Proceedings 48th Annual Conference of Metallurgists,2009:6-23.
[7]ANDREW Hall,JOHN Scott,HELEN Shang.Geothermal energy recovery from underground mines[J].Renewable and Sustainable Energy Reviews,2011,15:916-924.
[8]张化远.地下矿山节能的措施及途径[J].金属矿山,1981(11):13-15.ZHANG Huayuan.Energy saving measures and ways of underground mines[J].Metal Mine,1981(11):13-15.
[9]邸建友,范建国,莫技,等.矿井乏风热能利用装置:中国,ZL200820017343.9[P].2009-02-04.
[10]何满潮,徐敏.HEMS深井降温系统研发及热害控制对策[J].岩石力学与工程学报,2008,27(7):1353-1361.HE Manchao,XU Min.Research and development of HEEMS cooling system and heat-harm control in deep mine[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(7):1353-1361.
[11]张永亮,蔡嗣经,吴迪.矿山地热能沼气池加温系统试验研究[J].中南大学学报:自然科学版,2012,43(8):3270-3273.ZHANG Yongliang,CAI Sijing,WU Di.Test study on heating system of mining geothermal used in digester[J].Journal of Central South University:Science and Technology,2012,43(8):3270-3273.
[12]魏京胜,张党育,岳丰田,等.梧桐庄矿热泵系统可用热源分析及利用[J].煤炭科学技术,2012,40(5):120-124.WEI Jingsheng,ZHANG Dangyu,YUE Fengtian,et al.Analysis and utilization on available heat sources of heat pump system in Wutongzhuang Mine[J].Coal Science and Technology,2012,40(5):120-124.
[13]CHENG Weimin,QI Yudong,YU Yanbin,et al.Integrated utilization of low-grade thermal energy in hot coal mine[J].Journal of Coal Science and Engineering,2013,19(1):26-32.
[14]曹洪松,逯光明,石建,等.济宁市城区遥感地热异常及其地热田地质特征[J].山东国土资源,2008,24(4):29-34.CAO Hongsong,LU Guangming,SHI Jian,et al.Remote-sensing geothermal abnormality and geological characteristics of geothermal fields in districts of jining city[J].Land and Resources in Shandong Province,2008,24(4):29-34.
[15]李爱军,张丰,王鹏.济宁南部地热资源分析[J].山东国土资源,2015,31(6):30-37.LI Aijun,ZHANG feng,WANG Peng.Preliminary exploration of geothermal resources in south of Jining City[J].Land and Resources in Shandong Province,2015,31(6):30-37.
[16]王炯.唐口煤矿深部岩巷恒阻大变形支护机理与应用研究[D].北京:中国矿业大学(北京),2011:21-22.
[17]陈洪年,李占琪,董华军,等.济宁市城区地热资源分布与开发前景初析[J].地下水,2008,30(3):30-33.CHEN Hongnian,LI Zhanqi,DONG Huajun,et al.Geothermal resources distribution and development prospect analyze of Jining Districts[J].Ground Water,2008,30(3):30-33.
[18]朱家玲,姚涛.地热水腐蚀结垢趋势的判断和计算[J].工业用水与废水,2004,35(2):23-25.ZHU Jialing,YAO Tao.Judgement and calculation of trend of corrosion and scaling of geothermal water[J].Industrial Water and Waste Water,2004,35(2):23-25.
[19]DZ 40—85,地热资源评价方法[S].
[20]朱家玲,汪健生,张伟,废弃石油井改造为地热井的发展现状[J].地热能,2013(6):3-6.ZHU Jialing,WANG Jiansheng,ZHANG Wei.Development status of transforming abandoned oil well into geothermal well[J].Geothermal Energy,2013(6):3-6.