高温岩体地热资源模拟与预测方法
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摘要
研究了基于三维稳态热传导理论并忽略对流换热及地质构造等次要因素影响的地温场与地温梯度场的反演方法。该方法可以在大尺度上数值模拟岩体中地温的空间分布状况,并预测高温岩体地热资源量。以云南省腾冲热海热田为例,模拟和分析了地质体的地温与地温分布梯度场的特点及其形成原因,并对热田高温岩体地热资源量进行了预测评价。提出的高温岩体地热资源模拟与预测方法具有重要的理论价值,研究结果可为热海热田地热资源的开发和利用提供参考。
The inversion methods of ground temperature field and ground temperature gradient field based on three-dimensional static heat conduction theory are presented with the influence from those minor factors such as heat convection and geology tectonics and so on. It can be used to simulate the three-dimensional ground temperature field in rock mass and to forecast the geothermal resources quantity of hot dry rock(HDR) on large scale. The paper analyzed the features and the mechanisms of ground temperature field and ground temperature gradient field of Rehai geothermal field in Tengchong,Yunnan province,China. Then the quantity of HDR geothermal resources was forecasted,and the results achieved from the presented simulation and forecast method of HDR geothermal resources of Rehai geothermal field can provide a reference to the geothermal exploitations.
The inversion methods of ground temperature field and ground temperature gradient field based on three-dimensional static heat conduction theory are presented with the influence from those minor factors such as heat convection and geology tectonics and so on. It can be used to simulate the three-dimensional ground temperature field in rock mass and to forecast the geothermal resources quantity of hot dry rock(HDR) on large scale. The paper analyzed the features and the mechanisms of ground temperature field and ground temperature gradient field of Rehai geothermal field in Tengchong,Yunnan province,China. Then the quantity of HDR geothermal resources was forecasted,and the results achieved from the presented simulation and forecast method of HDR geothermal resources of Rehai geothermal field can provide a reference to the geothermal exploitations.
引文
[1]佟伟,章铭陶.西藏地热[M].北京:科学出版社,1981.(TongWei,ZhangMingtao.Geothermal inTibet[M].Beijing:SciencePress,1981.(inChinese))
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[9]白登海,廖志杰,赵国泽等.从MT 探测结果推论腾冲热海热田的岩浆热源[J].科学通报,1994,39(4):344–347.(BaiDenghai,LiaoZhijie,ZhaoGuoze,et al.Deducing the magma resources by the result ofMT sounding inRehai geothermal field inTengchong[J].ChineseScienceBulleting,1994,39(4):344–347.(inChinese))
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[11]田荣举,赵晋明.腾冲火山地区深部构造的地球物理条件[A].见:云南地球物理文集(II)[C].昆明:云南大学出版社,1998.127– 131.(TianRongju,ZhaoJinming.Geophysical conditions of deep tectonic inTengchong volcano area[A].In:Selection ofYunnanGeophysics(II)[C].Kunming:YunnanUniversityPress,1998.127–131.(inChinese))
[12]廖志杰,尹正武,贾希义等.腾冲热海地热田的概念模型[J].高校地质学报,1997,3(2):212–221.(LiaoZhijie,YinZhengwu,JiaXiyi,et al.Conceptual model of theRehai(hot sea) geothermal field inTengchong,Yunnan,China[J].GeologicalJournal ofChinaUniversities,1997,3(2):212–221.(inChinese))
[13]上官志冠.腾冲热海地热田热储结构与岩浆热源的温度[J].岩石学报,2000,16(1),83–90.(ShangguanZhiguan.Structure of geothermal reservoirs and the temperature of mantle-derived magma hot source in theRehai area,Tengchong[J].ActaPetrologicSinica,2000,16(1),83–90.(inChinese))
[14]林睦曾.岩石热物理学及其工程应用[M].重庆:重庆大学出版社,1991.(LinMuzeng.RockThermophysics andItsApplication inEngineering[M].Chongqing:ChongqingUniversityPress,1991.(inChinese))
[15]BariaR,Baumg?rtnerJ,GéA.Status of theEuropean hot dry rard rock geothermal programmer[J].GeothermalEngineering,1994,19(1/2):33–48.
[16]PierceK G.An estimate of the cost of electricity production from hot dry rock[J].GeothermalResourcesCouncilBulletin,1993,(9):197–203.
[2]佟伟,章铭陶.腾冲地热[M].北京:科学出版社,1989.(TongWei,ZhangMingtao.Geothermal inTengchong[M].Beijing:SciencePress,1989.(inChinese))
[3]廖志杰,赵平.滇藏地热带[M].北京:科学出版社,1999.(LiaoZhijie,ZhaoPing.Yunnan—TibetGeothermalBelt[M].Beijing:SciencePress,1990.(inChinese))
[4]陈墨香,汪集杨,邓孝.中国地热资源——形成特点和潜力评价[M].北京:科学出版社,1994.(ChenMoxiang,WangJiyang,DengXiao.FormingCharacteristic andPotentialEvaluated ofGeothermalResources inChina[M].Beijing:SciencePress,1994.(inChinese))
[5]刘若新,樊祺诚,郑祥身等.长白山天池火山的岩浆演化[J].中国科学(D 辑),1998,28(3):226–231.(LiuRuoxin,FanQicheng, ZhengXiangshen,et al.The magma evolvement ofChangbaishan volcano[J].Science inChina(SeriesD),1998,28(3):226–231.(inChinese))
[6]刘若新.中国的活火山[M].北京:地震出版社,2000.(LiuRuoxin.ActiveVolcano ofChina[M].Beijing:EarthquakePress,2000.(inChinese))
[7]王国强.实用工程数值模拟技术及其在ANSYS 上的实践[M].西安:西北工业大学出版社,1999.(WangGuoqiang.AppliedEngineer- ingNumericalSimulationTechniqueApplication ofANSYS[M].Xi′an:NorthwesternPolytechnicalUniversityPress,1999.(inChinese))
[8]赵阳升.有限元法及其在采矿工程中的应用[M].北京:煤炭工业出版社,1994.(ZhaoYangsheng.FEM andItsApplication inMiningEngineering[M].Beijing:ChinaCoalIndustryPublishingHouse,1994.(inChinese))
[9]白登海,廖志杰,赵国泽等.从MT 探测结果推论腾冲热海热田的岩浆热源[J].科学通报,1994,39(4):344–347.(BaiDenghai,LiaoZhijie,ZhaoGuoze,et al.Deducing the magma resources by the result ofMT sounding inRehai geothermal field inTengchong[J].ChineseScienceBulleting,1994,39(4):344–347.(inChinese))
[10]刘金诚,佟伟,张宝山等.腾冲火山地热区的微震观测[J].地球物理学报,1986,29(6):547–556.(LiuJincheng,TongWei,ZhangBaoshan,et al.Micro-seismicity investigation of volcano geothermal area inTengchong[J].ChineseJournal ofGeophysics,1986,29(6):547–556.(inChinese))
[11]田荣举,赵晋明.腾冲火山地区深部构造的地球物理条件[A].见:云南地球物理文集(II)[C].昆明:云南大学出版社,1998.127– 131.(TianRongju,ZhaoJinming.Geophysical conditions of deep tectonic inTengchong volcano area[A].In:Selection ofYunnanGeophysics(II)[C].Kunming:YunnanUniversityPress,1998.127–131.(inChinese))
[12]廖志杰,尹正武,贾希义等.腾冲热海地热田的概念模型[J].高校地质学报,1997,3(2):212–221.(LiaoZhijie,YinZhengwu,JiaXiyi,et al.Conceptual model of theRehai(hot sea) geothermal field inTengchong,Yunnan,China[J].GeologicalJournal ofChinaUniversities,1997,3(2):212–221.(inChinese))
[13]上官志冠.腾冲热海地热田热储结构与岩浆热源的温度[J].岩石学报,2000,16(1),83–90.(ShangguanZhiguan.Structure of geothermal reservoirs and the temperature of mantle-derived magma hot source in theRehai area,Tengchong[J].ActaPetrologicSinica,2000,16(1),83–90.(inChinese))
[14]林睦曾.岩石热物理学及其工程应用[M].重庆:重庆大学出版社,1991.(LinMuzeng.RockThermophysics andItsApplication inEngineering[M].Chongqing:ChongqingUniversityPress,1991.(inChinese))
[15]BariaR,Baumg?rtnerJ,GéA.Status of theEuropean hot dry rard rock geothermal programmer[J].GeothermalEngineering,1994,19(1/2):33–48.
[16]PierceK G.An estimate of the cost of electricity production from hot dry rock[J].GeothermalResourcesCouncilBulletin,1993,(9):197–203.
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