Beijing Olympic Park Areas Geothermal Resource Evaluation

Geothermal resource is a kind of clean and renewable energy, and it is an important direction for the development of low carbon economy. The development and utilization of geothermal resources plays an important role in the adjustment of energy structure, energy conservation and emission reduction, and environment improvement. In recent years, the haze weather in the northern area is becoming more and more serious.Beijing, as a national capital of building, also suffered. Therefore, it is of great significance to carry out geothermal survey and evaluation.Olympic Park is located in the intermediate zone of Shahe geothermal field, houshayu geothermal field and urban geothermal field. The structure is located inJiulongshan syncline southeast wing, stretching eastward, of Mentougou depression folded. Tuo Li-Fengtai sag of the northwest corner, Shunyi local uplift depression, namely Laiguangying raised on the west side, which as geothermal exploration degree areas of relatively high. The geothermal geological conditions of the Olympic Park area conclude: geothermal reservoir in this area is mainly Cambrian- Ordovician of the Jixian system and double heat storage structure, the main heat conducting structure for Huangzhuang Gaoliying fault and Shunyi fault in this paper. Based on the establishment of geothermal conceptual model, by using the volume method and the lumped parameter model method to calculate respectively the amount of geothermal resources and the amount of recoverable amount of geothermal resources in the 40 km2 range of the Olympic Park. In the geothermal resources evaluation based on combined with development and utilization scheme, proposed giving priority to the development of using western heat reservoir buried relatively shallow, permeability is strong, good conditions for the development of the economic zone of geothermal resources, strict control of geothermal water exploitation, development of the reinjection water and suggestions on strengthening the geothermal resources dynamic monitoring.The evaluation shows that in the Olympic Park area the storage capacity of geothermal resources up to 7.163 ×108 m3(reservoir volume method). Olympic Park West is a mining economic zone. Thermal energy storage in the relatively shallow burial and single well water capacity greater than 2000m3, outlet temperature of 53 degrees Celsius, the annual mining resources capacity of up to 57 million m3(without regard to recharge conditions and sustainable exploitation of 45 years) can provide high quality thermal mineral water to the Olympic Village Construction Group, average daily water supply for 1600 m3.