Study on the geothermal production and reinjection mode in Xiong County  

作　　者：WANG Shu-fang LIU Jiu-rong SUN Ying LIU Shi-liang GAO Xiao-rong SUN Cai-xia LI Hai-kui 

机构地区：[1]Beijing Institute of Hydrogeology and Engineering Geology,Beijing 100195,China [2]SINOPEC Star Co.Ltd.,Beijing 100083,China [3]SINOPEC Green Energy Geothermal Development Co.,Ltd.,Xiong County 071800,China

出　　处：《Journal of Groundwater Science and Engineering》2018年第3期178-186,共9页地下水科学与工程（英文版）

基　　金：supported by Study on the Sustainable Development and Utilization of Geothermal Resource of Xiong County in Niutuozhen Geothermal Field,North China

摘　　要：The large karst geothermal field of Xiong County,which is located to the south of geothermal field in Niutuozhen,features huge geothermal resources and favorable condition for development and utilization.Because of the long-term extensive production,the pressure of geothermal reservoir continues to decline and some geothermal wells even face the danger of scrapping.To relieve the fall in pressure of geothermal reservoir and achieve the sustainable development and utilization of geothermal field in the long run,reinjection experiment is conducted in the geothermal field of Xiong County and a three-dimensional hydrothermal coupled numerical model was constructed.The reinjection experiment showed that the mode of one production well and one reinjection well can be achieved in this geothermal field.The numerical simulation is used to forecast and compare the change in pressure field and temperature field under different production and reinjection modes and concludes that the most opotimized production and utilization mode is the concentrated production-reinjection mode,and the most opotimized production-reinjection combination mode is the shallow production and shallow reinjection mode which can ensure the sustainable development and utilization of geothermal resources in the long run.The large karst geothermal field of Xiong County,which is located to the south of geothermal field in Niutuozhen,features huge geothermal resources and favorable condition for development and utilization.Because of the long-term extensive production,the pressure of geothermal reservoir continues to decline and some geothermal wells even face the danger of scrapping.To relieve the fall in pressure of geothermal reservoir and achieve the sustainable development and utilization of geothermal field in the long run,reinjection experiment is conducted in the geothermal field of Xiong County and a three-dimensional hydrothermal coupled numerical model was constructed.The reinjection experiment showed that the mode of one production well and one reinjection well can be achieved in this geothermal field.The numerical simulation is used to forecast and compare the change in pressure field and temperature field under different production and reinjection modes and concludes that the most opotimized production and utilization mode is the concentrated production-reinjection mode,and the most opotimized production-reinjection combination mode is the shallow production and shallow reinjection mode which can ensure the sustainable development and utilization of geothermal resources in the long run.

关 键 词：GEOTHERMAL KARST GEOTHERMAL RESERVOIR REINJECTION NUMERICAL simulation 

分 类 号：TV[水利工程]