Wentang Geothermal Field And Water Resources Formation Machanism And Utilization Prospect Research In Jiangxi Province

Geothermal resources is a very valuable comprehensive mineral resources.People are imperative to the use of geothermal Because of its multiple function,a wide range of applications and little damage to the ecological environment.Our country is rich in geothermal resources,the medium and the low temperature geothermal field all over the country,so the prospect of sustainable development and utilization of geothermal research is payed more and more attention.Jiangxi province is one of the provinces with the most abundant geothermal resources in our country,with the development of tourism in recent years,the geothermal hot springs expand more rapidly,resources utilization far out of exploration degree of evaluation and research.People have not been studied the occurrence characteristics of geothermal resources,cause of formation and the feasibility of sustainable development thoroughly,so it is increasing risk and blindness,at the same time increasing the difficult of the geothermal field of scientific management.This Paper research area is Wentang town of Yichun city in jiangxi province,on the basis of previous information and comprehensive analysis.The following works were performed:collecting and sorting the geological background information,A hydrogeological mapping,profile measurement,geological map revision,and irrigation pumping test,hydrology dynamic observation,and sample collection and testing and data processing.It is systematically discussed on the meteorological hydrology,topography,regional geology,thermal field geological condition,terrestrial heat flow and geothermal characteristics,fluid chemical characteristics in thermal reservoirs,etc.Finally,the formation mechanism of the thermal field was worked out.Moreover,we discusses the geological situation,dynamic,geothermal resources development,utilization of geothermal water resources characteristics and the forming condition of geothermal water resource systematically.By such studies,we evaluate Wentang town geothermal hot water resource sustainable development and utilization prospects and the potential of geothermal field injection.Wentang town geothermal resources is mainly consumes elastic storage resources.According to calculation of the heat of the geothermal reservoir by thermal energy storage method,namely,we use these formula to calculate quantity of heat in 25? temperature contour of natural boundary area and in 58? temperature contour natural boundary area respectively,estimates fields hot resource potential.Calculating the temperature of 25?isopleth of natural boundary of thermal energy stored in the reservoir of 3.33 x 1015MJ,58?temperature contour of natural boundary of thermal energy stored in the reservoir of 5.70 x 1014MJ.But,the heat storage method only calculate the heat in the heat reservoir,it doesn't take calculation of heat supply into account.In fact,some parts of the geothermal field have strong lateral supplies.From the point of geological time,geothermal resources is renewable.Geothermal reinjection potential evaluation mainly includes to recharge mechanism analysis,the injection test data analysis of mathematical statistics,marching through the injection can be tentatively suggest that the local thermal field with the possibility of expanding to 12000 m3/d storage and the water temperature can generally keep in 58?64?.In the process of reinjection,we need to strictly control the injection amount which should not exceed the critical,make geothermal field's energy balance under artificial exploitation and set up a scientific system of the benign development of engineering.This article discuss sustainable development and utilization of geothermal water resources prospect evaluation to protect geothermal resources,formulating the development and utilization planning,establishing of monitoring system,utilizing of geothermal resources rationally,extending the service life of geothermal field,reducing the risk,and finally realizing the Wentang town's hot water resources sustainable development,utilization of geothermal fields,geothermal resources development and utilization of the greatest social,economic and environmental benefits.