Abstract：Wumishan Formation in Jixian System is the main-developed thermal storage formation in Tianjin, and the research on this layer mainly focuses on the temperature field, dynamic field, water chemistry field and surface water reinjection of the thermal reservoir, with little research on the karst fracture of thermal storage. In this paper, the authors analyzed and compared the completion and logging data of over 100 geothermal wells in Wumishan Formation in Tianjin to summarize the development of karst fractures of Class I and II in different structural units of Wumishan Formation, the burial depth of the thermal storage roof, the water inflow per unit of geothermal wells, the overlying different strata, and the development law of karst fractures. The results show that the karst fractures of Wumishan Formation are relatively developed, and the distance between the leakage site and the buried depth of the thermal storage roof plate is concentrated at a shallow distance of 100 m. The karst at the top of the hot reservoir is relatively developed, and fracture development is not greatly affected by different strata overlying the layer. The correlation between the fracture development and the burial depth of the roof of the layer is not obvious, but the overall fracture development tends to decrease slightly with the increase of the burial depth of the roof plate. The unit water inflow of geothermal wells increases with the increase of fracture development, and the heat storage fracture ratio is concentrated between 0.1 and 0.4. Under the influence of structure, the fractures of heat storage structure are more developed in the tensile fault structural zone, fault intersection and anticline axis. The research results could provide some references for the effective development and utilization of geothermal energy and geothermal drilling in Wumishan Formation of Tianjin.
邱京卫, 辛玉齐, 邵炳松, 刘赞. 天津市南部平原区雾迷山组热储岩溶裂隙发育规律[J]. 中国地质调查, 2023, 10(4): 81-88.
QIU Jingwei, XIN Yuqi, SHAO Bingsong, LIU Zan. Development law of karst fractures in the thermal storage of Wumishan Formation in Southern Plain District of Tianjin. , 2023, 10(4): 81-88.
[1] 李国栋. 地热钻井技术的若干问题[J].地下水,2008,30(1):85-86,88. Li G D.Some problems of geothermal drilling technology[J].Ground Water,2008,30(1):85-86,88. [2] 蔡芸,田光辉,刘东林.天津市雾迷山组热储层温度场动态特征分析[J].地下水,2015,37(6):1-2,57. Cai Y,Tian G H,Liu D L.Dynamic characteristics of Wumishan Formation temperature field in Tianjin[J].Ground Water,2015,37(6):1-2,57. [3] 阮传侠,沈健,李立亮,等.天津市滨海新区东丽湖地区基岩热储回灌研究[J].地质通报,2017,36(8):1439-1449. Ruan C X,Shen J,Li L L,et al.Researches on the reinjection of Dongli Lake bedrock reservoir in Binhai New Area,Tianjin[J].Geological Bulletin of China,2017,36(8):1439-1449. [4] 林黎,赵苏民,阮传侠,等.天津地区深部蓟县系雾迷山组热储岩溶非均一性特征研究[J].现代地质,2007,21(4):600-604. Lin L,Zhao S M,Ruan C X,et al.The inhomogeneity characteristics of geothermal storing karst caves of Wumishan reservoir of Jixian system in the deep part of Tianjin[J].Geoscience,2007,21(4):600-604. [5] 赵娜,王光辉,江国胜,等.天津东丽湖地区地热流体地球化学特征及其赋存环境[J].地质找矿论丛,2016,31(1):142-146. Zhao N,Wang G H,Jiang G S,et al.Geochemical characteristics and occurrence environment of geothermal water in Dongli Lake area,Tianjin,China[J].Contributions to Geology and Mineral Resources Research,2016,31(1):142-146. [6] 宗振海,闫佳贤,殷肖肖,等.天津地区雾迷山组水位降落漏斗演化特征及合理开发利用探讨[J].地质调查与研究,2018,41(4):312-317. Zong Z H,Yan J X,Yin X X,et al.Evolution characteristics of the Wumishan Formation depression cones in Tianjin aera and discussion of rational development and utilization[J].Geological Survey and Research,2018,41(4):312-317. [7] 唐博宁,朱传庆,邱楠生,等.雄安新区雾迷山组岩溶裂隙发育特征[J].地质学报,2020,94(7):2002-2012. Tang B N,Zhu C Q,Qiu N S,et al.Characteristics of the karst thermal reservoir in Wumishan Formation in Xiong'an New Ar-ea[J].Acta Geologica Sinica,2020,94(7):2002-2012. [8] 赵苏民,孙宝成,林黎,等.沉积盆地型地热田勘查开发与利用[M].北京:地质出版社,2013:15-18. Zhao S M,Sun B C,Lin L,et al.Exploration,Development and Utilization of Geothermal Field in Sedimentary Basin[M].Beijing:Geology Press,2013:15-18. [9] 林黎. 天津地区雾迷山组热储地下热水资源可持续开发利用研究[D].北京:中国地质大学(北京),2006:17-24. Lin L.Sustainable Development and Utilization of Thermal Groundwater Resources in the Geothermal Reservoir of the Wumishan Group in Tianjin[D].Beijing:China University of Geosciences (Beijing),2006:17-24. [10] 耿明奇,王新喜.王行庄井田岩溶特征及富水性[J].能源技术与管理,2006(5):42-44. Geng M Q,Wang X X.Karst characteristics and water-rich in Wangxingzhuang,the well-field system of ancient China[J].Energy Technology and Management,2006(5):42-44. [11] 靳宝珍,张子亮,刘斐,等.天津市能源矿产资源成矿规律调查与研究[R].天津:天津地热勘查开发设计院,2015:150-153. Jin B Z,Zhang Z L,Liu F,et al.Investigation and Study on Metallogenic Regularity of Energy Mineral Resources in Tianjin[R].Tianjin:Tianjin Geothermal Exploration and Development Institute,2015:150-153. [12] 姜夫爵,陈敏,王正科.天津地区的断裂构造特征[J].西北地质,2010,43(2):143-149. Jiang F J,Chen M,Wang Z K.Characteristics of fault structure in Tianjin area[J].Northwestern Geology,2010,43(2):143-149. [13] 天津市地质矿产局.天津市区域地质志[M].北京:地质出版社,1992:194-196. Tianjin Bureau of Geology and Mineral Resources.Tianjin Regional Geology[M].Beijing:Geological Publishing House,1992:194-196. [14] 刘春华,王威,卫政润.山东省水热型地热资源及其开发利用前景[J].中国地质调查,2018,5(2):51-56. Liu C H,Wang W,Wei Z R.Analysis of hydrothermal geothermal resources and its prospect of development and utilization in Shandong[J].Geological Survey of China,2018,5(2):51-56.
2023, Vol. 10 
