• 标题：The status quo and prospect of geothermal resources exploration and development in Beijing-Tianjin-Hebei region in China
• 关键词：Ccothemmal resources ,The second space of geodhermal reserv, Hydrulic fracturing Integnted utiliation ,Hydrogeology suvey enineering ,BeinigTianjin-Hebei region, China
• 作者：Gui-ling Wang, Wan-li Wang，Wei Zhang, Feng Ma, Feng Liu

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The Beijing-Tianjin-Hebei region boasts rich geothermal resources and new achievements have been made in the exploration and development of geothermal resources in this region based on previous regional investigation. In detail, geothermal reservoirs of Gaoyuzhuang Formation of Jixian System and Changcheng System in Xiongan New Area have been recently discovered, opening up the second space of geothermal resources; the calculation method of the recoverable resources of geothermal fluid with reinjection being considered has been improved in Beijing-Tianjin-Hebei region, and uniform comprehensive assessment of shallow geothermal energy, hydrothermal geothermal resources, and hot dry rocks (HDR) geothermal resources in the whole BeijingTianjin-hjjazhuang region has been completed. The scientific research base for cascade development and utilization of geothermal resources in Biing-Tianjin-Hebei region has appied hydraulic fracturing technology to the geothermal reservoirs in Gaoyuzhuang Formation. As a result, the production capacity doubled and two-stage cascade utilization composed of geothermal power generation and geothermal heating were realized, with the first-phase installed capacity of 280 kW and the geothermal heating is 30000 m'. In this way, a model of the exploration, development, and utilization of geothermal resources formed. Large-scale utilization has become the future trend of geothermal resource development in Bejing-Tianjin-Hebei region, and great efforts shall be made to achieve breakthroughs in reinjection technology, geothermal reservoir reconstruetion technology, thermoelectric technology and underground heat exchange technology.
C2020 China Geology Editorial Office.