| Abstract |
Beijing will host the Summer Olympic Games in 2008, and the Olympic Green, where the most important facilities for the great event is to be built, will be in the northern part of the city. A few geothermal wells have been drilled around the Olympic Green, which indicate that there is rather good geothermal potential in the area. The geothermal energy will be used for the space heating and bathing in the sports' village that will be more than 29 hectare in area, and its floor area of the department buildings is planned to be 360,000m2. According to the planning, 10 geothermal wells, including 6 production wells and 4 reinjection wells, will be drilled for the project. Recently, a geothermal resource assessment project has just been carried out for the area of the Olympic Green, and the result shows that the reservoir to be exploited is the limestone layer of Ordovician and Cambrian Systems, the geothermal wells will be as deep as 3000 to 4000m deep. The geothermal resource assessment and the rapid declining of the reservoir pressure in the wells in the vicinity of the Olympic Green may indicate that the water recharge of the geothermal system in the area is likely rather limited, and reinjection will be an essential part of the geothermal project so as to ensure the sustainability of geothermal energy production. |