综合物探在海石湾地区地热勘查中的应用
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摘要
在兰州海石湾地区进行地热勘查,在分析地热形成条件的基础上,结合可控源音频大地电磁测深、大地电磁测深、伽马能谱测量等物探方法,查清了区内盖层厚度、热储层埋深及断裂构造位置,避免了单一方法的片面性和盲目性,为钻探提供了依据。经钻探验证,井孔地层、含水层与物探推断基本吻合,井口水温60℃,涌水量90 m3/h,主要为断裂型带状热储。研究结果为今后在类似地区进行地热勘探提供了有参考价值的经验和实例。
Based on an analysis of the conditions of geothermal formation in Haishiwan area,the geophysical prospecting methods of CSAMT( Controlled Source Audio Magnetotelluric),MT( Magnetotelluric) and gamma ray spectrometry were used to verify each other and,as a result,cover layer thickness,the buried depth of thermal reservoir and the fracture location were found,which avoids oneside trend and blindness of a single method and provides a basis for drilling and obtaining good results in exploration. Drilling verification shows that well hole strata and water-bearing horizon are basically consistent with the results of geophysical inference,the water temperature of well mouth is 60℃,the water gushing amount is 90 m3/h,and the thermal reservoir is a fault type banded reservoir. The result provides valuable experience and example for geothermal exploration in similar areas in the future.
Based on an analysis of the conditions of geothermal formation in Haishiwan area,the geophysical prospecting methods of CSAMT( Controlled Source Audio Magnetotelluric),MT( Magnetotelluric) and gamma ray spectrometry were used to verify each other and,as a result,cover layer thickness,the buried depth of thermal reservoir and the fracture location were found,which avoids oneside trend and blindness of a single method and provides a basis for drilling and obtaining good results in exploration. Drilling verification shows that well hole strata and water-bearing horizon are basically consistent with the results of geophysical inference,the water temperature of well mouth is 60℃,the water gushing amount is 90 m3/h,and the thermal reservoir is a fault type banded reservoir. The result provides valuable experience and example for geothermal exploration in similar areas in the future.
引文
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[5]孙中任,杨殿臣,赵雪娟.综合物探方法寻找深部地下水[J].物探与化探,2017,41(1):52-57.Sun Z R,Yang D C,Zhao X J. The appliacation of integrated geophysical methods to the prospecting for deep geothermal resource[J].Geophysical and Geochemical Exploration,2017,41(1):52-57.
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[9]吴璐萍,石昆法,李荫槐,等.可控源音频大地电磁法在地下水勘查中的应用研究[J].地球物理学报,1996,39(5):712-717.Wu L P,Shi K F,Li Y H,et al. Application of CSAMT to the search for groundwater[J]. Chinese Journal Geophysics,1996,39(5):712-717.
[10]胡宁,张良红,高海发.综合物探方法在嘉兴地热勘查中的应用[J].物探与化探,2011,35(3):319-324.Hu N,Zhang L H,Gao H F.The appliacation of integrated geophysical exploration to geothermal exploration in Jiaxing City[J]. Geophysical and geochemical exploration,2011,35(3):319-324.
[11]杨玉新,刘九龙,张文静,等.综合物探方法在天津地区地热勘查中的应用[J].世界地质,2009,28(3):351-360.Yang Y X,Liu J L,Zhang W J,et al.Applying comprehensive geophysical prospecting method in geothermal exploration in Tianjin area[J].Global Geology,2009,28(3):351-360.
[12]张炯,黄少鹏,傅饶,等.大地电磁测深在火山区地热研究中的应用[J].岩石学报,2017,33(1):279-281.Zhang J,Huang S P,Fu R,et al. Application of magnetotellurics in geothermal exploration and research in volcano areas[J]. Acta Petrologica Sinica,2017,33(1):279-281.
[13]刘建宏,陈木森,杨瑞涛.伽马能谱测量在油气勘探中的应用[J].地下水,2014,36(3):161-170.Liu J H,Chen M S,Yang R T.Application of gamma spectrum survey in oil and gas exploration[J]. Ground Water. 2014,36(3):161-170.
[14] EJ/T 363-2012地面伽马能谱测量规范[S].国家国防科技工业局,2013.EJ/T 363-2012 Specification for groundγ-ray spectrometric survey[S]. National Defense Science and Technology Industry Bureau,2013.
[15]张国亚.大地电磁测深方法在长白山地区地热勘查中的应用研究[D].成都:成都理工大学,2015.Zhang G Y. Gamma-ray spectrometry and geogas as detection of concealed granite uranium research-an example of a uranum mine in northern Guangdong[D]. Chengdu:Chengdu University of Technology,2015.
[16]王平,熊盛青.油气放射性勘查原理方法与应用[M].北京:地质出版社,1997:23-25.Wang P,Xiong S Q.Principle method and application of oil and gas radioactive exploration[M]. Beijing:Geological Press,1997:23-25.
[17]马晓东,刘洪波,白锦林.综合物探在莘县地区地热勘查中的应用[J].物探与化探,2014,38(3):461-464.Ma X D,Liu H B,Bai J L.The application of integrated geophysical methods to the geothermal exploration in Shenxian area[J]. Geophysical and Geochemical Exploration,2014,38(3):461-464.
[18]孙博,李桐林,李鹤,等.可控源音频大地电磁测深法勘查深度研究[J].地球物理学进展,2015,30(2):836-837.Sun B,Li T L,Li H,et al. Study on the sounding of CSAMT[J].Progress Geophysics,2015,30(2):836-837.
[19]吴真玮.大地电磁测深方法在长白山地区地热勘查中的应用研究[D].长春:吉林大学,2013.Wu Z W. The application of MT to the study of geothermal exploration in Changbai mountain area[D].Changchun:Jilin University,2013.
[20]武斌.松潘—甘孜地区地热资源的地球物理勘探研究[D].成都:成都理工大学,2013.Wu B.Geophysical exploration of geothermal resources in the Songpan-Ganzi area[D]. Changdu:Chengdu University of Technology,2013.
[2]张子祥.兰州市永登县药水沟地区地热资源普查报告[R].兰州:甘肃煤炭地质勘查院,2001.Zhang Z X. Geothermal resources survey report of Lanzhou Tongdeng County Yaoshuigou district[R].Lanzhou:Gansu Coal Geological Prospecting Institute,2001.
[3]沈树龙.甘肃省兰州市窑街矿区深部扩大区煤炭勘探报告[R].兰州:甘肃煤炭地质勘查院,2013.Shen S L. Coal exploration report of yaojie mining area,Lanzhou City,Gansu Province[R]. Lanzhou:Gansu Coal Geological Prospecting Institute,2013.
[4]杨守渠,翟雷,铁健康.洛阳市龙门高温地热井的综合物探勘查[J].物探与化探,2012,36(4):562-566.Yang S Q,Zhai L,Tie J K.The integrated geophysical exploration of the high-temperature geothermal wells in Longmen,Luoyang City[J].Geophysical and Geochemical Exploration,2012,36(4):562-566.
[5]孙中任,杨殿臣,赵雪娟.综合物探方法寻找深部地下水[J].物探与化探,2017,41(1):52-57.Sun Z R,Yang D C,Zhao X J. The appliacation of integrated geophysical methods to the prospecting for deep geothermal resource[J].Geophysical and Geochemical Exploration,2017,41(1):52-57.
[6]雷晓东,杨全合,李晨,等.北京凤河营地热田东北部综合地球物理勘探[J].物探与化探,2004,39(4):249-255.Lei X D,Yang Q H,LI C,et al. Integrated geophysical exploration in northeast Fengheying geothermal field,Beijing[J]. Geophysical and Geochemical Exploration,2004,39(4):249-255.
[7]徐光辉,黄力军,刘瑞德.应用可控源音频大地电磁测深于北京水文地质勘查[J].物探与化探,2005,29(6):523-525.Xu G H,Huang L J,Liu R D.The application of controllable source audio frequency magnetotelluric sounding to hydrogeological exploration in Beijing[J]. Geophysical and Geochemical Exploration,2005,29(6):523-525.
[8]万明浩,王家林,吴健生,等.江苏句容—常州地区综合地球物理研究[J].地球物理学报,1993,36:791-797.Wan M H,Wang J L,Wu J S,et al. Comprehensive geophysics research in Jurong-Changzhou region,Jiangsu Province[J]. Chinese Journal Geophysics,1993,36:791-797.
[9]吴璐萍,石昆法,李荫槐,等.可控源音频大地电磁法在地下水勘查中的应用研究[J].地球物理学报,1996,39(5):712-717.Wu L P,Shi K F,Li Y H,et al. Application of CSAMT to the search for groundwater[J]. Chinese Journal Geophysics,1996,39(5):712-717.
[10]胡宁,张良红,高海发.综合物探方法在嘉兴地热勘查中的应用[J].物探与化探,2011,35(3):319-324.Hu N,Zhang L H,Gao H F.The appliacation of integrated geophysical exploration to geothermal exploration in Jiaxing City[J]. Geophysical and geochemical exploration,2011,35(3):319-324.
[11]杨玉新,刘九龙,张文静,等.综合物探方法在天津地区地热勘查中的应用[J].世界地质,2009,28(3):351-360.Yang Y X,Liu J L,Zhang W J,et al.Applying comprehensive geophysical prospecting method in geothermal exploration in Tianjin area[J].Global Geology,2009,28(3):351-360.
[12]张炯,黄少鹏,傅饶,等.大地电磁测深在火山区地热研究中的应用[J].岩石学报,2017,33(1):279-281.Zhang J,Huang S P,Fu R,et al. Application of magnetotellurics in geothermal exploration and research in volcano areas[J]. Acta Petrologica Sinica,2017,33(1):279-281.
[13]刘建宏,陈木森,杨瑞涛.伽马能谱测量在油气勘探中的应用[J].地下水,2014,36(3):161-170.Liu J H,Chen M S,Yang R T.Application of gamma spectrum survey in oil and gas exploration[J]. Ground Water. 2014,36(3):161-170.
[14] EJ/T 363-2012地面伽马能谱测量规范[S].国家国防科技工业局,2013.EJ/T 363-2012 Specification for groundγ-ray spectrometric survey[S]. National Defense Science and Technology Industry Bureau,2013.
[15]张国亚.大地电磁测深方法在长白山地区地热勘查中的应用研究[D].成都:成都理工大学,2015.Zhang G Y. Gamma-ray spectrometry and geogas as detection of concealed granite uranium research-an example of a uranum mine in northern Guangdong[D]. Chengdu:Chengdu University of Technology,2015.
[16]王平,熊盛青.油气放射性勘查原理方法与应用[M].北京:地质出版社,1997:23-25.Wang P,Xiong S Q.Principle method and application of oil and gas radioactive exploration[M]. Beijing:Geological Press,1997:23-25.
[17]马晓东,刘洪波,白锦林.综合物探在莘县地区地热勘查中的应用[J].物探与化探,2014,38(3):461-464.Ma X D,Liu H B,Bai J L.The application of integrated geophysical methods to the geothermal exploration in Shenxian area[J]. Geophysical and Geochemical Exploration,2014,38(3):461-464.
[18]孙博,李桐林,李鹤,等.可控源音频大地电磁测深法勘查深度研究[J].地球物理学进展,2015,30(2):836-837.Sun B,Li T L,Li H,et al. Study on the sounding of CSAMT[J].Progress Geophysics,2015,30(2):836-837.
[19]吴真玮.大地电磁测深方法在长白山地区地热勘查中的应用研究[D].长春:吉林大学,2013.Wu Z W. The application of MT to the study of geothermal exploration in Changbai mountain area[D].Changchun:Jilin University,2013.
[20]武斌.松潘—甘孜地区地热资源的地球物理勘探研究[D].成都:成都理工大学,2013.Wu B.Geophysical exploration of geothermal resources in the Songpan-Ganzi area[D]. Changdu:Chengdu University of Technology,2013.
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